KR20000004140A - Meter for an automatic meter reading system - Google Patents

Abstract

PURPOSE: A meter for an automatic meter reading system is provided, which can check a power amount used by user which uses a midnight power. CONSTITUTION: A meter for an automatic meter reading system comprises: an instrument (10) for measuring a used power amount; a timer (50) for counting a current time; a memory (40) for divided a general storage region (41) into a midnight storage region; a receiving unit (80) for receiving an information from a repeater; a transmission unit (70) for transmitting a certain information to the repeater; and a microcomputer (40) for storing the used power amount information of the instrument (10) to the general storage region (42) or the midnight storage region (42) and for successively transmitting the used power amount stored in the general storage region (41) and the midnight storage region (42) through the transmission unit (70) to the repeater when a transmission request of a meter reading amount is received from the repeater. Therefore, the midnight power use and using time is simply set, and then the used power amount in the midnight power using time and the used power amount in the general time is simply divided to transmit to a main system.

Description

Meter of automatic meter reading system

The present invention relates to an automatic meter reading system, and more particularly, to a meter of an automatic meter reading system capable of metering power consumption of a prisoner using a midnight electric power.

A typical power meter is configured to display the power used by a user by a mechanical method. The general power meter has a problem that a separate meter reader needs to visually read the power used by the meter, which requires a lot of labor and may cause an error during the meter reading.

In order to solve this problem, an automatic meter reading system has been proposed.

The automatic meter reading system refers to a system that allows the power meter to detect the power used in an electrical manner and transmit the detected information to the main system wirelessly through the repeater. The automatic meter reading system has the following features.

1. Automated meter reading and issuing can save labor cost.

2. It can be read quickly and accurately to determine the characteristics of the load quickly.

3. The installation position of the meter is free, so the piping and wiring can be economically constructed.

4. It is possible to settle the payment immediately when the director moves or moves in.

5. We can prevent crimes pretending to be meter readers.

6. You can prevent charges due to meter reading mistakes.

7. Accurate meter reading can prevent challenges.

An automatic meter reading system for having this function is shown in FIG. 1.

A plurality of repeaters (I1-In) are connected to one main system (1), and each of the plurality of repeaters (I1-In) has a plurality of meters (T11-Tnn) in a corresponding cell (C1-Cn) and It is connected wirelessly. That is, as shown in FIG. 2, the area operated by the automatic meter reading system is divided into a plurality of cells C1 -Cn, and each of the repeaters I1 -In is configured in the cells C1 -Cn. Repeaters I1-In communicate with meters T11-Tnn located in the corresponding cells C1-Cn. In this specification, only the meter (T11-T15) and the repeater (I1) in the cell (C1) is shown for ease of description, it is easy for those of ordinary skill in the art that the other cells also have the same configuration. You will know.

On the other hand, the repeaters I1-In transmit and receive to the main system 1 by transmitting and receiving the metered power in the meter (T11-Tnn) to and from the meter (T11-Tnn) in the cell (C1-Cn), the main The system 1 can detect the amount of power used measured by each meter T11 -Tnn. The main system 1 will inform the meter T11-Tnn user of the billing statement corresponding to the measured power usage of the meter T11-Tnn.

On the other hand, the wireless communication between the repeaters (I1-In) and the meter (T11-Tnn) in the cell uses a direct sequential spread spectrum (DSSS), such DSSS has the following communication characteristics Have

1. The call distance can be extended to about 3 km.

2. Security can be secured.

3. The permeability can be improved.

4. The noise resistance can be improved.

5. The battery life can be extended.

6. We can create comfortable environment.

As described above, in the conventional automatic meter reading system using DSSS communication, the user who wants to use the midnight power should charge a fee different from the normal power use time for the late night power use time of the electric power. The conventional meter has a problem that it is not possible to divide and measure the power consumption of the late night power usage time and the general power usage time.

The present invention has been made to solve such a problem, an object of the present invention, the automatic meter reading system that can read the power consumption by separating the late-night power use time and the normal power use time, and transmit the metered information to the repeater To provide a meter.

In order to achieve the above object, the present invention provides a meter for an automatic meter reading system that transmits a metered amount of power used by a repeater to a main system, comprising: a meter for measuring the amount of power used at an installed place; A timer that counts the current time; A memory divided into a general storage area and a late night storage area; A receiving unit capable of receiving information from the repeater; A transmitting unit capable of transmitting predetermined information to the repeater; It is possible to set the night time power usage time zone, and when the night power usage time zone is set, it is determined whether the current time of the timer is the same as the night power usage time zone, and the power consumption information of the instrument is stored in the general storage area or the night storage area of the memory. When receiving the meter reading usage transmission request from the repeater through the receiver, the microcomputer sequentially transmits the used power amount information stored in the general storage area and the late night storage area through the transmitter.

1 is a schematic block diagram of a conventional automatic meter reading system,

2 is a view showing a network state of a conventional automatic meter reading system,

3 is a schematic block diagram of a meter configured in an automatic meter reading system according to the present invention;

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

10: measuring instrument 30: microcomputer

40: memory 41: general storage area

42: midnight storage area 50: timer

60: midnight power use time setting unit 70: transmission unit

80: receiver

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

3 is a schematic block diagram schematically showing a meter of an automatic meter reading system for carrying out the invention.

As shown in the figure, a measuring instrument 10 for measuring the power used by the receiver is configured, and the measuring instrument 10 is configured to apply the measured power consumption information to the microcomputer 30.

The memory 40 is connected to the microcomputer 30, and the memory 40 is divided into two storage areas, that is, the general storage area 41 and the late-night storage area 42. It can be easily understood by those skilled in the art that one storage means can be implemented in various ways according to a designer's needs, such as dividing one storage device into two regions or substantially configuring two storage means. There will be.

The microcomputer 30 is configured to selectively apply the amount of power used from the measuring instrument 10 to the general storage area 41 or the late night storage area 42 of the memory 40. That is, the microcomputer 30 has a timer 50 as shown in the drawing, and according to the current time of the timer 50, the amount of power used by the instrument 10 is stored in the general storage area 41 or the late night of the memory 40. In the storage area 42, this operation is described in detail later.

The microcomputer 30 is also connected to the late night power usage time setting unit 60 composed of a plurality of keys, and the time zone set by the operation of the key in the late night power usage time setting unit 60 is set as the late night power usage time zone. When the current time of the timer 50 is within the late night power use time zone, the amount of power used by the meter 10 is stored in the late night storage area 42 of the memory 40, but the current time of the timer 50 is When it is out of the late night power use time, it is comprised so that the use power amount of the meter 10 may be stored in the general storage area 42 of the memory 40.

The microcomputer 30 is also connected to a transmitter 70 and a receiver 80, and the microcomputer 30 communicates with the repeaters through the transmitter 70 and the receiver 80 to measure the power consumption measured by the instrument (memory ( Stored at 40) to the repeater.

The receiver of the meter having the above-described configuration may set a desired late night power use time using the key of the late night power use time setting unit 60. That is, the microcomputer 30 sets the time zone input by the late night power use time setting unit 60 as the late night power use time zone. When the late night power use time zone is set, the microcomputer 30 stores the power amount information input from the measuring instrument 10 in the general storage area 41 or the late night storage area 42 of the memory 40. That is, the timer 50 If the current time zone of) is the night time power use time set, the microcomputer 30 stores the power consumption information of the instrument 10 in the late night storage area 42, but the current time zone of the timer 50 is the night time power use time zone. If not, the amount of power usage information of the measuring instrument 10 is stored in the general storage area 42. When the above-mentioned midnight power usage time period is not set, the microcomputer 30 stores the amount of power usage information of the measuring instrument 10 in general. Will be stored in storage area 42.

When the power consumption information is stored in the memory 40 as described above, when the command from the repeater, that is, the command to transmit the power consumption information is received to the receiving unit 80, the microcomputer 30 stores the general storage area in the memory 40. And read the information in the late night storage area and sequentially transmit it to the repeater. Here, as described above, the power consumption information transmitted to the main system through the repeater is divided into the power usage information in the general storage area 41 and the power usage information in the late-night storage area 42, and thus, the main system is applied. The charge can be calculated by dividing the amount of power used by the prisoner in the regular time zone and the set night time zone.

On the other hand, in the above-described configuration, but the user to set the late night power usage time using the late night power usage time setting unit 60, this causes the inconvenience that the receiver must operate the night time power usage time setting unit 60. This inconvenience can be solved by configuring the main system operator to set the time zone for late night power usage in the meter.

That is, the microcomputer 30 in the meter of the receiver communicates with the main system through the repeater, so that the main system can be configured to remotely set the night time power use time of the microcomputer 30. In this case, the general audience should watch the midnight power usage and time zone by means of telephone or the like to the operator of the main system. After receiving the request, the main system operator transmits the nightly power usage time and time zone information to the meter through the repeater. The microcomputer 30 in the meter receives this information through the receiving unit 80 to set a night time power use time zone. When the late night power use time is set in this manner, the microcomputer 30 stores the power consumption measured by the meter 10 according to the above-described operation, that is, the late night power use time, in the general storage area or the late night storage area of the memory 40. Will be stored selectively.

As described above, in the present invention, it is possible to simply set the late night power use and the use time zone, and to easily divide the use power amount information of the set late night power use time zone and the use power amount information of the general time zone and transmit them to the main system.

Claims (2)

In the meter of the automatic meter reading system which transmits the amount of used power read through the repeater to the main system, A measuring instrument 10 for measuring an amount of power used at an installed place; A timer 50 that counts the current time; A memory 40 divided into a general storage area 41 and a late night storage area 42; A receiving unit 80 capable of receiving information from the repeater; A transmitter 70 capable of transmitting predetermined information to the repeater; It is possible to set a night time power usage time zone, and when the night power usage time zone is set, it is determined whether the current time of the timer is the same as the night power usage time zone, and the amount of power usage information of the meter 10 is determined by the memory 40. In the general storage area 41 or the late night storage area 42, and when the meter reading transmission request is received from the repeater through the receiving unit 80, the general storage area 41 and the late night storage area 42 are stored. Meter of the automatic meter reading system having a microcomputer (40) for sequentially transmitting the relaying power information stored in the relaying via the transmitter (70). Further comprising: a midnight power usage time setting unit (60) having a key capable of setting the midnight power usage time zone; The microcomputer 30 is a meter of the automatic meter reading system configured to set the night time power use time according to the information of the repeater received through the receiving unit (80).