KR20120106043A - Method for remote upgrade of remote meter reading system - Google Patents

Method for remote upgrade of remote meter reading system Download PDF

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Publication number
KR20120106043A
KR20120106043A KR1020110023875A KR20110023875A KR20120106043A KR 20120106043 A KR20120106043 A KR 20120106043A KR 1020110023875 A KR1020110023875 A KR 1020110023875A KR 20110023875 A KR20110023875 A KR 20110023875A KR 20120106043 A KR20120106043 A KR 20120106043A
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KR
South Korea
Prior art keywords
firmware image
node
external memory
management server
central management
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KR1020110023875A
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Korean (ko)
Inventor
유승도
이창욱
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(주)누리텔레콤
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Priority to KR1020110023875A priority Critical patent/KR20120106043A/en
Publication of KR20120106043A publication Critical patent/KR20120106043A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/08—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers from or to individual record carriers, e.g. punched card, memory card, integrated circuit [IC] card or smart card
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Stored Programmes (AREA)

Abstract

PURPOSE: A remote upgrade method of a remote detection system using a mesh node is provided to rapidly upgrade a firmware image about a star node and a mesh node by using an external memory installed in the mesh node. CONSTITUTION: A first firmware image about a mesh node is received from a central management server(S410). The first firmware image is stored in an external memory(S420). An upgrade command about the first firmware image is received from the central management server(S430). The mesh node is upgraded by reading a first firmware image stored in the external memory(S440). A second firmware image about the start node is received from the central management server(S450). The second firmware image is stored in the external memory(S460). [Reference numerals] (AA) Start; (BB) End; (S410) Receiving a first firmware image about a mesh node from a central management server; (S420) Storing the received first firmware image in an external memory; (S430) Receiving an upgrade command about the first firmware image from the central management server; (S440) Upgrading by reading the first firmware image stored in the external memory; (S450) Receiving a second firmware image about a start node from the central management server; (S460) Storing the received second firmware image in the external memory; (S470) Receiving an upgrade command about the second firmware image from the central management server; (S480) Transferring the second firmware image stored in the external memory to the start node

Description

Method for remote upgrade of remote meter reading system

The present invention relates to a remote upgrade method of a remote meter reading system, and more particularly, to a remote upgrade method of a remote meter reading system for effectively upgrading the firmware image of the remote meter reading nodes.

In general, in the USN (Ubiquitous Sensor Network) system, the remote upgrade method using RF communication varies depending on the hardware configuration and the characteristics of the microprocessor.

However, the USN microprocessor adopts a low-power and low-cost model because of its characteristics, so that the size of the boot loader can not be set infinitely during a remote upgrade.

Therefore, in general, the upgrade using the RF communication is set to be possible only in one hop, and thus there is a problem in that the upgrade can be performed only in the case of being located near the node.

An object of the present invention is to provide a remote upgrade method of a remote meter reading system that can upgrade all nodes with a minimum time using an external memory.

The present invention relates to a remote upgrade method of a remote meter reading system using a mesh node equipped with an external memory, the mesh node receiving a first firmware image of the mesh node from a central management server, and receiving the received first agent. 1 storing a firmware image in the external memory, receiving an upgrade command for the first firmware image from the central management server, and reading and upgrading the first firmware image stored in the external memory. It includes a remote upgrade method of a remote meter reading system including.

The remote upgrade method of the remote meter reading system may include receiving a second firmware image of a star node, which is a lower node of the mesh node, from the central management server, and receiving the received second firmware image in the external memory. Storing; receiving an upgrade command for the second firmware image from the central management server; and reading the second firmware image stored in the external memory and delivering the second firmware image to the star node. have.

Here, the mesh node includes a first boot loader and a first application unit, and the upgrading of the first firmware image includes reading the first firmware image stored in the external memory through the first boot loader. The data may be recorded in the first application unit.

The star node includes a second boot loader and a second application unit, and in the transferring of the second firmware image, the mesh node transmits a boot loader mode operation command to the star node and then the star node. When the second boot loader is activated, the second firmware image stored in the external memory may be transmitted to the second boot loader of the star node through the first application unit. In this case, the second boot loader of the star node may upgrade by recording the received second firmware image in the second application unit.

In addition, the present invention, the first application unit for storing the first firmware image for the mesh node received from the central management server in an externally mounted external memory, and the upgrade command for the first firmware image from the central management server When receiving the, provides a mesh node device included in the remote meter reading system including a first boot loader for reading and recording the first firmware image stored in the external memory to the first application unit to upgrade.

The first application unit may receive a second firmware image of a star node, which is a lower node of the mesh node, from the central management server and store the second firmware image in the external memory, and store the second firmware image for the second firmware image from the central management server. When the upgrade command is received, the first boot loader may read the second firmware image in the external memory and transfer the read image to the star node.

The present invention stores a central management server for remote meter reading, and a first firmware image received from the central management server or a second firmware image for a star node which is a lower node in an externally mounted external memory. When the upgrade command for the first firmware image or the second firmware image is received from a management server, the mesh node reads and upgrades the first firmware image or the second firmware image, or transfers the image to the star node, and the mesh node. Receiving the firmware image, and provides a remote meter reading system including the star node for upgrading the received firmware image.

The remote meter reading system may further include a gateway that receives the first firmware image or the second firmware image from the central management server and transmits the first firmware image or the second firmware image to the mesh node through RF communication.

According to the remote upgrade method of the remote meter reading system according to the present invention, by using an external memory mounted on the mesh node, it is possible to quickly upgrade to a minimum time of the firmware image for not only the mesh node but also its subordinate star node. There is an advantage.

In addition, by using an architecture that sequentially distributes the upgrade processors, it is not necessary to remotely control all nodes individually and reduce commercial communication costs.

1 is a block diagram of a remote upgrade system according to an embodiment of the present invention.
FIG. 2 is a detailed configuration diagram of the mesh node shown in FIG. 1.
FIG. 3 is a detailed configuration diagram of the star node shown in FIG. 1.
4 is a flowchart of a remote upgrade method in the remote upgrade system of FIG. 1.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a remote upgrade system according to an embodiment of the present invention. The system includes a central management server 110, a gateway 120, a mesh node 130, and a star node 140.

The central management server 110 receives a first firmware image for the mesh node 130, a second firmware image for the star node 140, and an upgrade command for each firmware image. By using the transmission to the gateway 120 side.

The gateway 120 receives the first firmware image or the second firmware image from the central management server 110 and transmits the first firmware image or the second firmware image to the mesh node 130 using RF communication. Of course, the gateway 120 transfers the upgrade command to the mesh node 130 when it receives the upgrade command. Here, the gateway 120 and the mesh node 130 are connected to the local area network, but the present invention is not limited thereto.

The mesh node 130 has an external memory 10 mounted to the outside. The mesh node 130 stores the first firmware image received from the gateway 120 or the second firmware image for the star node, which is a lower node, in the external memory 10. In addition, when the mesh node 130 receives an upgrade command for the first firmware image or the second firmware image from the gateway 120, the mesh node 130 reads the upgrade and upgrades the first firmware image or star the second firmware image. Forward to node 140.

The star node 140 receives the second firmware image from the mesh node 130 and upgrades the received second firmware image.

Hereinafter, the configuration of the mesh node 130 and the star node 140 will be described.

First, FIG. 2 is a detailed configuration diagram of the mesh node shown in FIG. 1. The mesh node 130 includes a first boot loader 131 and a first application unit 132. Here, the first application unit 132 performs RF communication with the central management server 110 and transmits and receives various information with the first boot loader 131. The first boot loader 131 has only an RF wireless stack function, not a full stack, and the first application unit 132 is configured as a full stack.

FIG. 3 is a detailed configuration diagram of the star node shown in FIG. 1. The star node 140 includes a second boot loader 141 and a second application unit 142. Here, the second application unit 142 performs RF communication with the first application unit 132 and transmits and receives various information with the second boot loader 141. The second boot loader 141 has only an RF wireless stack function, and the second application unit 142 uses a stack configuration except for some functions in a full stack to prevent battery consumption.

4 is a flowchart of a remote upgrade method in the remote upgrade system of FIG. 1. Hereinafter, a remote upgrade method using the system will be described in detail with reference to FIG. 4.

First, the mesh node 130 receives a first firmware image of the mesh node 130 transmitted from the gateway 120 through the central management server 110 through the first application unit 132. (S210).

In operation S220, the first firmware image received by the first application unit 132 is stored in the external memory 10.

Thereafter, an upgrade command for the first firmware image transmitted from the gateway 120 is received through the first application unit 132 (S230).

Then, the mesh node 130 reads and upgrades the first firmware image stored in the external memory 10 (S240). More specifically, the mesh node 130 reads the first firmware image stored in the external memory 10 through the first boot loader 131 and records the first firmware image in the first application unit 132. Upgrade the firmware image. Using the above steps S210 ~ S240, the mesh nodes 130 are continuously upgraded through the gateway 120.

After the step S240, the mesh node 130 transmits a second firmware image of the star node 140 transmitted from the gateway 120 through the central management server 110 through the first application unit 132. Receive (S250).

Thereafter, the second firmware image received by the first application unit 132 is stored in the external memory 10 (S260).

In addition, an upgrade command for the second firmware image transmitted from the gateway 120 is received through the first application unit 132 (S270).

Then, the mesh node 130 reads the second firmware image stored in the external memory 10 and transmits it to the star node 140 (S280).

Referring to step S280 in more detail, the mesh node 130 transmits a boot loader mode operation command to the star node 140 through the first application unit 132. Thereafter, when the second boot loader 141 of the star node 140 is activated, the mesh node 130 stores the second firmware image stored in the external memory 10 to the first application unit 132. It transmits to the second boot loader 141 of the star node 140 through.

Accordingly, the second boot loader 141 of the star node 140 records the upgraded second firmware image in the second application unit 142 and upgrades it. In this manner, the mesh node 130 may upgrade the firmware by immediately transmitting a firmware image to the star node 140. Based on the above-described step S250 ~ S280, the mesh node 130 sequentially lowers the firmware images of the star nodes 140 corresponding thereto.

According to the present invention as described above, the battery node that is not equipped with the external memory 10, that is, the star node 140, it can be easily upgraded even if the end end user is not located nearby. In addition, since the external memory 10 may not be mounted on the star nodes 140, the cost may be reduced.

In addition, by using a structure that distributes the upgrade processor sequentially, there is no need to remotely control all nodes individually, and can upgrade all nodes in a short time, thereby reducing the commercial communication cost.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: external memory 110: Central Management Server
120: gateway 130: mesh node
131: first boot loader 132: first application unit
140: star node 141: second boot loader
132: second application unit

Claims (9)

In the remote upgrade method of the remote meter reading system using a mesh node equipped with an external memory,
The mesh node receiving a first firmware image for the mesh node from a central management server;
Storing the received first firmware image in the external memory;
Receiving an upgrade command for the first firmware image from the central management server; And
And remotely reading and upgrading the first firmware image stored in the external memory. The method according to claim 1,
Receiving from the central management server a second firmware image for a star node that is a lower node of the mesh node;
Storing the received second firmware image in the external memory;
Receiving an upgrade command for the second firmware image from the central management server; And
And reading the second firmware image stored in the external memory and delivering the second firmware image to the star node. The method according to claim 1 or 2,
The mesh node,
A first boot loader and a first application unit,
Upgrading the first firmware image may include:
And remotely reading the first firmware image stored in the external memory through the first boot loader and writing the first firmware image to the first application unit. The method according to claim 3,
The star node,
A second boot loader and a second application unit,
Delivering the second firmware image,
The mesh node transmits a boot loader mode operation command to the star node, and when the second boot loader of the star node is activated, transmits the second firmware image stored in the external memory to the star node through the first application unit. To the second bootloader,
The second boot loader of the star node is a remote upgrade method of the remote meter reading system for recording and upgrading the second firmware image received in the second application unit. A first application unit for storing a first firmware image of the mesh node received from the central management server in an externally mounted external memory; And
When receiving an upgrade command for the first firmware image from the central management server, the remote meter reading comprising a first boot loader for reading the first firmware image stored in the external memory, write the upgrade to the first application unit to upgrade; Mesh node devices included in the system. The method according to claim 5,
The first application unit,
Receiving a second firmware image of a star node, which is a lower node of the mesh node, from the central management server and storing the second firmware image in the external memory;
When the upgrade command for the second firmware image is received from the central management server, the first boot loader reads the second firmware image in the external memory and delivers the second firmware image to the star node. Device. The method according to claim 5 or 6,
The star node,
A second boot loader and a second application unit,
When the boot loader mode operation command of the mesh node is transmitted to the star node, and the second boot loader of the star node is activated, the second firmware image stored in the external memory is transmitted to the star node through the first application unit. To the second bootloader,
And a second boot loader of the star node is included in the remote meter reading system for recording and upgrading the received second firmware image to the second application unit. A central management server for remote meter reading;
The first firmware image received from the central management server or the second firmware image for the star node, which is a lower node, is stored in an externally mounted external memory, and is stored in the first firmware image or the second firmware image from the central management server. A mesh node that reads the upgrade or transfers the first firmware image or the second firmware image to the star node when the upgrade command is received; And
And the star node receiving the firmware image from the mesh node and upgrading the received firmware image. The method according to claim 8,
And a gateway for receiving the first firmware image or the second firmware image from the central management server and delivering the first firmware image or the second firmware image to the mesh node using RF communication.
KR1020110023875A 2011-03-17 2011-03-17 Method for remote upgrade of remote meter reading system KR20120106043A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101495749B1 (en) * 2013-05-02 2015-02-25 (주)누리텔레콤 Method for upgrading of nodes in remote meter reading system and apparatus thereof
KR101525811B1 (en) * 2014-03-28 2015-06-09 유틸라이팅(주) System and method for upgrading firmware in wireless sensor network
KR102074704B1 (en) * 2019-11-22 2020-02-07 (주)캐시스 Distributed upgrade Method used daisy chain and system thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101495749B1 (en) * 2013-05-02 2015-02-25 (주)누리텔레콤 Method for upgrading of nodes in remote meter reading system and apparatus thereof
KR101525811B1 (en) * 2014-03-28 2015-06-09 유틸라이팅(주) System and method for upgrading firmware in wireless sensor network
KR102074704B1 (en) * 2019-11-22 2020-02-07 (주)캐시스 Distributed upgrade Method used daisy chain and system thereof

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