KR20000004144A - Apparatus for receiving meter reading data of an automatic meter reading system - Google Patents

Abstract

PURPOSE: An apparatus for receiving meter reading data is provided, which can receive meter reading data from an automatic meter reading watt-hour meter using a hand set. CONSTITUTION: An apparatus for receiving meter reading data comprises: a first microcomputer (2) for performing control operation to transmit a meter reading information of an electric using amount; a first key input unit (4) for displaying the meter reading information according to the signal of the first microcomputer (2); a first storing unit (8) for storing an information according to the control of the first microcomputer (2); a multiplex and de-multiplex unit (10) for operating according to the control of the first microcomputer (2) and for being multiplex data from the first microcomputer (2) or for being de-multiplex the multiplex data to provide the first microcomputer (2); and a first transmitting/receiving unit (12) for transmitting data from the multiplex and de-multiplex unit (10) and for receiving the multiplex data from the hand set to provide the received data to the first multiplex and de-multiplex unit (10). Therefore, since the meter reading data from the automatic meter reading watt-hour meter (14) is easily received using the hand set (34), in the case that a meterman uses the meter, the meter reading can to be quickly and accurately read.

Description

Meter data receiving device of automatic meter reading system

The present invention relates to an apparatus for receiving meter data of an automatic meter reading (AMR) system, and more particularly, to an apparatus for receiving meter data from an automatic meter reading meter using a hand set.

According to an embodiment of the automatic meter reading according to the prior art, the automatic meter reading strategic meter is installed for each house to read the amount of electricity used to display the amount of electricity used so far on the digital display. Therefore, the meter reader who has jurisdiction of the electric company visits each house directly and writes the meter reading information by referring to the amount of electricity used so far indicated on the indicator.

Thereafter, the meter reading information of the meter reader is collected by the electric company, and the electricity fee is charged for each house.

However, in this conventional technology, in order to grasp the current state of use of electricity from house to house, there is an inconvenience in that the meter reader of the electricity company must visit the house for each house and separately write down the amount of electricity.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks of the prior art. The purpose is to provide.

The present invention for achieving the above object is characterized in that it comprises an automatic meter reading system consisting of an automatic meter reading meter to transmit the meter reading information up to now, and a hand set receiving meter information from the meter reading meter do.

1 is a block diagram showing an embodiment of a reading data receiving apparatus of the automatic meter reading system according to the present invention.

<Description of the symbols for the main parts of the drawings>

2, 22: microcomputer 4, 24: key input unit

6, 26: display unit 8, 28: storage unit

10, 30: mixed and reverse mixed units 12, 32: transmitter and receiver

14: automatic meter reading 34: hand set

Hereinafter, an embodiment of the present invention for achieving the above object in detail.

1 is a block diagram showing an embodiment of an automatic meter reading system according to the present invention, which is composed of an automatic meter reading power meter 14 and a hand set 34 in wireless communication with each other.

In the figure, the microcomputer 2 of the automatic meter reading power meter 14 performs a control operation for transmitting meter reading information of power. In addition, the microcomputer 2 generates a signal for indicating the amount of power up to now, and controls the scrambling of the data to be transmitted and the descrambling of the mixed received data. In this case, the mixed signal is a signal confidentiality method in which a receiver designed according to this rule is reproduced by mixing a unique arrangement or characteristic of the signal into a promised rule.

Next, the key input unit 4 is operated by the operator to control the operation of the microcomputer 2 by applying a key signal to the microcomputer 2. For example, an identification number may be assigned to the automatic meter reading power meter 14 so that the hand set 34 identifies it. That is, the microcomputer 2 may be controlled to set an identification number of the automatic meter reading power meter 14 in the electric erasing and programmable read only memory (EEPROM) 8. At this time, the storage unit 8 manages the data for each address to store specific data at an empty address or to delete data stored at a specific address.

In addition, the display unit 6 is aligned with a plurality of 7-segment LEDs (Light Emitting Diodes) to display specific information such as the amount of power in accordance with the display signal of the microcomputer 2.

The mixing / demixing unit 10 operates under the control of the microcomputer 2 to mix data from the microcomputer 2, for example, meter reading information to be transmitted, while the mixed data of the mixed data is reversed to mix the microcomputer 2. To apply.

The transmitter / receiver 12 then operates under the control of the microcomputer 2 to wirelessly transmit data from the mixing / decoupling unit 10 to the hand set 34 via an antenna or to mix with the hand set 34. Received data wirelessly. At this time, the content of the mixed data from the hand set 34 is mainly a content for requesting the automatic meter reading power meter 14 to transmit meter reading information.

In the figure, the microcomputer 22 of the hand set 34 performs a control operation for receiving meter reading information from the automatic meter reading power meter 14. In addition, the microcomputer 22 generates a signal for displaying the meter reading information according to the reception, and controls the mixing of the data to be transmitted and the demixing of the mixed reception data.

Next, the key input unit 24 controls the operation of the microcomputer 22 by keying by the operator and applying a key signal to the microcomputer 22. For example, the microcomputer 22 may be controlled to store the meter reading information from the automatic meter reading power meter 14 in the storage unit (EEPROM) 28. At this time, the storage unit 28 manages the data for each address, and stores specific data in an empty address or deletes data stored in a specific address.

In addition, the display unit 26 is aligned with a plurality of 7-segment LEDs or a liquid crystal display (LCD), and according to the display signal of the microcomputer 22, the amount of power or the reception data is normal. Display specific information such as whether or not.

The mixing and demixing unit 30 operates under the control of the microcomputer 22 to mix the data from the microcomputer 22, for example, the meter reading information request signal to be transmitted, while the mixed reception data is demixed and the microcomputer ( 22).

Next, the transmitter / receiver 32 operates under the control of the microcomputer 22 to wirelessly transmit data from the mixed / reversely mixed unit 30 to the automatic meter reading power meter 14 through an antenna or from the automatic meter reading power meter 14. Receive wirelessly mixed data. At this time, the content of the mixed data from the automatic meter reading power meter 14 is mainly meter reading information.

Herein, the present invention operates in a frequency band of 902MHz to 928MHz having 12 channels using direct sequence spread spectrum (DSSS) communication.

At this time, the characteristics of the direct continuous distributed communication is as follows.

1) Extended call distance (approx. 3 km)

2) Security

3) Improving Permeability

4) Improved noise resistance

5) Extended battery life

6) Creating a Pleasant Environment

In addition, since the automatic meter reading 14 and the hand set 34 need to transmit and receive between each other, it is necessary to appropriately adjust the operation state such as timing according to each transmission and reception. In addition, after the hand set 34 confirms the identification number of the automatic meter reading power meter 14, the automatic meter reading power meter 14 and the hand set 34 communicate with each other.

As described above, according to the present invention, when the meter reader of the relevant jurisdiction uses the hand set 34 to easily receive the meter data from the automatic meter reading power meter 14 wirelessly using the hand set 34 in the automatic meter reading system. The meter reading effect is quick and accurate.

Claims (2)

In the automatic meter reading system comprising an automatic meter reading meter for transmitting the meter reading information to the outside, and a hand set for receiving meter information from the meter reading meter: The automatic meter reading power meter, the first microcomputer to perform a control operation for transmitting the meter information of the electricity consumption; A first key input unit configured to be operated by a key to control an operation of the first microcomputer; A first display unit which displays the meter reading information according to the signal of the first microcomputer; A first storage unit for storing or deleting information according to the control of the first microcomputer; A first mixing / demixing unit operating under the control of the first micom to mix the data from the first micom or to demix the received received data to the first micom; A first operation operated under the control of the first microcomputer to transmit data from the first mixing / demixing unit to the hand set or to receive mixed data from the hand set and to apply the mixed data from the hand set to the first mixing / demixing unit; Meter reading data receiving device of automatic meter reading system including a transmitter and receiver. 2. The apparatus of claim 1, wherein the hand set comprises: a second microcomputer that performs a control operation for receiving meter information from the meter reading power meter; A second key input unit configured to be operated by a key to control the operation of the second microcomputer; A second display unit which displays the meter reading information according to the signal of the second microcomputer; A second storage unit for storing or deleting information under the control of the second microcomputer; A second mixing / demixing unit operating under the control of the second microcomputer to mix data from the second microcomputer or to demix the received data to the second microcomputer; Operate under the control of the second microcomputer to transmit data from the second mixing and demixing unit to the automatic meter reading or to receive mixed data from the automatic meter reading and applying to the second mixing and demixing unit. Meter reading data receiving device of an automatic meter reading system including a second transmitter and receiver.