# US 2013/0154848 A1 · Meter capable of having communication security and data transmitting/receiving system using the same

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2013/0154848 A1
- Document ID: US20130154848A1
- Status: Published application
- Kind: A1
- Application number: 13/712,523
- Filed: 2012-12-12
- Published: 2013-06-20
- Earliest claimed: 2011-12-19
- Assignees: Lsis Co., Ltd.
- Inventors: Yong Woo KIM
- Web page: https://patentgrep.com/patent/US20130154848A1

## CPC

- G08C 19/00: Electric signal transmission systems (G08C17/00 takes precedence)
- H04L 63/0442: {wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption (cryptographic mechanisms or cryptographic arrangements for public-key encryption H04L9/30)}
- H04L 67/12: specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- G08C: TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS (fluid pressure transmitting systems F15B; mechanical means for transferring the output of a sensing member into a different variable G01D5/00; mechanical control systems G05G)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

Disclosed is a meter capable of having communication security and a data transmitting/receiving system using the same, the system being such that a the server generates a public key and a private key corresponding to the public key, and transmits the public key to a meter, and the meter comprises a communication unit receiving the public key from a first communication unit, a frame generating unit encoding the data frame using the public key, and a controller controlling the communication unit to allow transmitting the encoded data frame.

## Claims

### Claim 1

A meter capable of having communication security, the meter comprising:
a communication unit configured to communicate with a server;
a frame generating unit configured to encode a data frame using a public key received from the server via the communication unit; and
a controller configured to control the communication unit to allow transmitting the encoded data frame, in a case a message requesting the data frame from the server.

### Claim 2 (depends on 1)

The meter of claim 1, wherein the communication unit communicates with the server using the DLMS protocol.

### Claim 3 (depends on 1)

The meter of claim 1, wherein the server has a private key corresponding to the public key.

### Claim 4 (depends on 1)

The meter of claim 1, wherein the communication unit simultaneously receives the public key and a message requesting the data frame from the server.

### Claim 5 (depends on 1)

The meter of claim 1, further comprising a storage storing the encoded data frame.

### Claim 6 (depends on 5)

The meter of claim 5, wherein the controller controls the communication unit to allow transmitting the encoded data frame stored in the storage, in a case a message requesting the data frame is received from the server.

### Claim 7 (depends on 1)

The meter of claim 1, wherein the frame generating unit encodes a part indicating a data in the data frame.

### Claim 8

A data transmitting/receiving system transmitting/receiving a data frame between a meter and a server, wherein the server generates a public key and a private key corresponding to the public key, and transmits the public key to the meter, and wherein the meter comprises:
a communication unit receiving the public key from the server,
a frame generating unit encoding the data frame using the public key, and
a controller controlling the communication unit to allow transmitting the encoded data frame.

### Claim 9 (depends on 8)

The system of claim 8, wherein the server decodes the encoded data frame received from the meter using the private key.

### Claim 10 (depends on 8)

The system of claim 8, wherein the server and the communication unit communicate each other using a DLMS protocol.

### Claim 11 (depends on 8)

The system of claim 8, wherein the meter further comprises:
storage storing the encoded data frame, and the controller is further configured to control the communication unit to allow transmitting the encoded data frame stored in the storage, in a case a message requesting the data frame is received from the server.

### Claim 12 (depends on 8)

The system of claim 8, wherein the controller is further configured to control the frame generating unit to generate a data frame using the public key received from the frame generating unit, in a case a message requesting the data frame and the public key is received from the server.

### Claim 13 (depends on 8)

The system of claim 8, wherein the frame generating unit encodes a part indicating a data in the data frame.