Wireless device, wireless communication system, wireless module, interface module, and communication method

Patent metadata

Field	Value
Publication number	US-2016261972-A1
Application number	US-201415030164-A
Country	US
Kind code	A1
Filing date	Oct 21, 2014
Priority date	Oct 24, 2013
Publication date	Sep 8, 2016
Grant date	—

Abstract

A wireless device includes a wireless module and an interface module. One of the wireless module and the interface module generates a first message having a predetermined format and including data, which is to be transmitted to other one of the wireless module and the interface module, and type information representing a type of the data, and transmits the first message to the other one of the wireless module and the interface module. The other one of the wireless module and the interface module generates, in accordance with the type information included in the first message, a second message having the same format as the first message and including data, which is to be replied to the one of the wireless module and the interface module, and type information representing a type of the data, and replies the second message to the one of the wireless module and the interface module.

First claim

1 . A wireless device comprising:
a wireless module configured to wirelessly transmit a signal which has been received from a field device, and wirelessly receive a signal which is to be transmitted to the field device; and an interface module which is disposed between the wireless module and the field device, wherein one of the wireless module and the interface module generates a first message having a predetermined format, the first message includes data and type information, the data is to be transmitted to other one of the wireless module and the interface module, the type information represents a type of the data, and the one of the wireless module and the interface module transmits the first message to the other one of the wireless module and the interface module, and wherein the other one of the wireless module and the interface module generates a second message having the same format as the first message in accordance with the type information included in the first message, the second message includes data and type information, the data is to be replied to the one of the wireless module and the interface module, the type information represents a type of the data, and the other one of the wireless module and the interface module replies the second message to the one of the wireless module and the interface module.

2 . The wireless device according to claim 1 ,
wherein in a case that the type information included in the first message is a processing request, the other one of the wireless module and the interface module stores the type information in the second message as a processing response.

3 . The wireless device according to claim 2 ,
wherein in a case that the type information included in the first message is a processing request to a self-module, the other one of the wireless module and the interface module stores, in the second message, a processing result of processing performed according to the processing request to a self-module as data which is to be replied.

4 . The wireless device according to claim 2 ,
wherein the processing request, as the type information included in the first message which is transmitted from the wireless module to the interface module, includes a control request to the field device, and wherein the processing response, as the type information included in the second message which is replied from the interface module to the wireless module, includes a control response from the field device.

5 . The wireless device according to claim 1 ,
wherein in a case that the type information included in the first message represents notifications or instructions, the other one of the wireless module and the interface module performs processing in accordance with the notifications or the instructions, and does not reply to the one of the wireless module and the interface module.

6 . The wireless device according to claim 5 ,
wherein the interface module comprises a display, wherein the processing request, as the type information included in the first message which is transmitted from the wireless module to the interface module, includes a wireless state display notice for displaying information representing a wireless state of the wireless module on the display, and wherein even if the interface module receives the first message about the wireless state display notice, the interface module does not reply the second message to the wireless module.

7 . The wireless device according to claim 5 ,
wherein the interface module comprises a power source, wherein the processing request, as the type information included in the first message which is transmitted from the interface module to the wireless module, includes a battery remaining quantity notice for notifying a battery remaining quantity, and wherein even if the wireless module receives the first message about the battery remaining quantity notice, the wireless module does not reply the second message to the interface module.

8 . The wireless device according to claim 1 ,
wherein the wireless module comprises:
a wireless communicator configured to wirelessly communicate;
a first communicator configured to communicate with the interface module; and
a first controller configured to control the wireless communicator and the first communicator.

9 . The wireless device according to claim 8 ,
wherein the first controller generates data which includes information representing a transmission source and a transmission destination of the first message, the type information, information representing a size of data which is to be transmitted to the interface module, and data which is to be transmitted to the interface module.

10 . The wireless device according to claim 9 ,
wherein the first communicator adds, to the data generated by the first controller, information representing a start of the first message, ID of the first message, information which is used for performing error check of transmission and reception, and information representing an end of the first message, to generate the first message, and wherein the first communicator transmits the generated first message to the interface module.

11 . The wireless device according to claim 10 ,
wherein the interface module comprises:
a sensor OF configured to communicate with the field device;
a second communicator configured to communicate with the wireless module; and
a second controller configured to control the sensor OF and the second communicator.

12 . The wireless device according to claim 11 ,
wherein the second communicator deletes, from the first message received from the wireless module, the information representing the start of the first message and the information representing the end of the first message.

13 . The wireless device according to claim 12 ,
wherein the second communicator determines whether an error exists or not based on the information which is used for performing the error check of transmission and reception, which is included in the first message received from the wireless module.

14 . The wireless device according to claim 13 ,
wherein in a case that the second communicator determines the error does not exist, the second controller analyzes the type information included in the first message, and performs in accordance with a result of the analyze.

15 . A wireless communication system comprising:
a first wireless module configured to wirelessly transmit a signal which has been received from a first field device, and wirelessly receive a signal which is to be transmitted to the first field device; a first interface module which is disposed between the first wireless module and the first field device, a first communication protocol being implemented in the first interface module; a second wireless module configured to wirelessly transmit a signal which has been received from a second field device, and wirelessly receive a signal which is to be transmitted to the second field device; and a second interface module which is disposed between the second wireless module and the second field device, a second communication protocol being different from the first communication protocol and implemented in the second interface module; wherein one of the first wireless module and the first interface module generates a first message having a predetermined format, the first message includes data and type information, the data is to be transmitted to other one of the first wireless module and the first interface module, the type information represents a type of the data, and the one of the first wireless module and the fir

Assignees

• Yokogawa Electric Corp

Inventors

• Ozoe Nobumichi

Classifications

• H04B1/38

  Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving · CPC title

• H04W4/005 Primary

  Electricity · mapped topic

• H04L67/12

  specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks · CPC title

• G05B2219/25428

  Field device · CPC title

• G05B2219/25187

  Transmission of signals, medium, ultrasonic, radio · CPC title