KR20000034249A - Method for driving remote gauge - Google Patents

Abstract

PURPOSE: A method for driving remote gauge is provided to change a user identification and inspected consumption power amount according to a hand terminal. CONSTITUTION: A method for driving remote gauge includes a Mi-com(13) forwards consumption power amount information and a user identification(ID) in a storing part(14) to a hand terminal(20) if there is consumption power transmission instruction. The Mi-com(13) remove the consumption power amount information in the storing part(14) and store the consumption power amount corresponding to the instruction in the storing part(14) if there is consumption power change instruction. But, if there is ID change instruction, the Mi-com(13) remove the ID information in the storing part(14) and store an ID added to the instruction in the storing part(14)

Description

How to Operate a Remote Meter

The present invention relates to a remote meter reading meter, and more particularly to a method of driving a remote meter reading meter.

A typical power meter is configured to display the power used by a user by a mechanical method. Such a general power meter has a problem that a separate meter reader needs to visually read the used power displayed on the power 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 in which a power meter detects the power used by an electrical method and wirelessly transmits the detected information to the main system 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.

The automatic meter reading system has the above-mentioned advantages, but there is a problem that a plurality of repeaters must be installed as described above. The present inventors applied for a utility model registration (application number No.) of the remote meter reading meter in the same way as the present invention to solve this problem.

In the above application, the ID is added to the remote meter, and the remote meter reading required to transmit the amount of used power from the hand terminal is configured to transmit the metered amount of used power to the hand terminal.

On the other hand, the remote meter reading meter may need to change a predetermined ID, and if the amount of power used is read by the remote meter reading meter is wrong, it may be necessary to change the metered amount of power used.

However, in the conventional apparatus, there is a problem that a lot of inconvenience may be caused in use without considering the above-mentioned case at all.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a method of driving a remote meter reading meter which can be set by changing the ID and the amount of used power in accordance with the request of the hand terminal.

In order to achieve the above object, the present invention provides a remote meter reading meter which stores the amount of used power and a predetermined ID in a storage unit and wirelessly transmits the amount of used power and ID to the hand terminal according to a command from a hand terminal. A driving method, comprising: determining whether a header added to a command from a hand terminal value is the same as a preset header; If the header is identical to a preset header, determining whether the ID added in the command is the same as the ID in the storage; If the ID is the same as the ID in the storage, determining whether the command is a power usage transfer command, a power usage change command, or an ID command; If the command is a command for transmitting power consumption, transmitting the power consumption information and ID in the storage unit to the hand terminal; If the command is a power consumption change command, erasing the power usage information in the storage unit, and storing the used power amount added to the command in the storage unit; If the command is an ID change command, erasing the ID in the storage, and storing the ID added to the command in the storage.

1 is a schematic block diagram of a remote meter reading meter according to the present invention;

2 illustrates the format of a command sent by a hand terminal to perform a method according to the present invention;

3 is a flowchart illustrating a method of driving a remote meter reading meter according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10: remote meter reading meter 11: general meter

12: reed switch 13: microcomputer

14: storage unit 15: oscillation unit

16: transceiver 20: hand terminal

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

1 is a schematic block diagram of an apparatus for carrying out the present invention.

As shown, the remote meter reading meter in the present invention is configured to wirelessly transmit power meter information read from the general meter to the hand terminal 20.

That is, reference numeral 10 denotes a remote meter reading meter, and reference numeral 20 denotes a hand terminal for receiving meter reading power amount information from the meter 10 by performing transmission and reception with the remote meter reading meter 10.

The remote meter reading meter 10 according to the present invention includes a reed switch 12 as shown, the reed switch 12 is used power information read in the general meter (11) configured in the remote meter reading meter (10) Is detected and applied to the microcomputer 13.

The storage unit 14 is connected to the microcomputer 13, and the microcomputer 13 stores the detected power consumption information and the given predetermined ID in the storage unit 14. That is, as will be described later, the hand terminal 20 may receive power usage information from a plurality of remote meter reading meters instead of receiving power usage information from one remote meter reading meter 10. It should be known whether the information is from the meter reading meter 10. Therefore, each remote meter reading meter 10 is given a respective ID, which is stored in the storage unit 14 together with the amount of power used.

In addition, the oscillation unit 15 is connected to the microcomputer 13 and operates in synchronization with the oscillation clock of the oscillation unit 15.

On the other hand, the microcomputer 13 is connected to the transceiver 16, the transceiver 16 is configured to form a communication path through the hand terminal 20 and the radio frequency or infrared light. That is, the microcomputer 13 can communicate with the hand terminal 20 through the transceiver 16.

In the device configured as described above, the hand terminal 20 is configured to transmit three kinds of commands to the remote meter reading meter 10.

That is, the hand terminal 20 may send the remote meter reading meter 10 a transmission command of the stored amount of used power, which has a format as shown in FIG. 2A. Here, the fields F1 and F2 are for headers, and in this embodiment, 055H and 0AAH are used as headers, and 8 bits are allocated. After this header, an ID field F3 of 8 bytes indicating the ID of the remote meter reading instrument is inserted. After this field F3, an 8-bit field F4 for an instruction is added. In FIG. 1A, 031H in the field F4 indicates a command for transmitting power consumption.

After field F4, an 8-bit trailer field F5 (099H in this embodiment) is configured to indicate that the transmission of information has ended, and after field F5, an 8-bit BCC for error detection is inserted. Field F6 is configured.

In addition, the hand terminal 20 may instruct the remote meter reading meter 10 to change the stored power amount information, and in this case, it is necessary to transmit the power amount information to be changed together. The format of this instruction is shown in FIG. 2B. FIG. 2B has the same configuration as that of FIG. 2A, except that the field F4 for the command is changed to 032H, indicating a change in the storage power consumption command, and a 4-byte field F7 for the power consumption data to be changed. It can be seen that is added.

In addition, the hand terminal 20 may command the remote meter reading meter 10 to change the current ID, and in this case, the hand terminal 20 should also transmit the change ID to be changed. The format of this command is shown in FIG. 2C. FIG. 2C has the same configuration as that of FIG. 2A, except that the field F4 for the command is changed to 033H to indicate an ID change command. In addition, an 8-byte field F8 for the ID to be changed is added. Can be.

3 shows an operational flowchart of a remote meter reading meter 10 receiving the above-described instructions.

As shown in FIG. 3, the microcomputer 13 in the remote meter reading meter 10 receives the information from the hand terminal 20 through the transceiver 16 and stores the information in the internal buffer.

That is, the microcomputer 13 reads the fields F1 and F2 from the information of the stored hand terminal 20 to determine whether the header information, that is, 055H and 0AAH have been received in succession (S1, S2), and the header information is received. The process proceeds to step S3.

In step S3, the microcomputer 13 determines whether the ID information stored in the field F3 is the same as the ID information previously assigned to the microcomputer 13, and when the input ID information is the same as the ID information already assigned, the microcomputer 13 proceeds to step S4. If the input ID differs from the pre-allocated ID information, however, the process returns to step S1 to repeat the above-described process.

On the other hand, when the input ID information is the same as the pre-assigned ID information, the microcomputer 13 performs steps S4, S5, and S6 successively to determine whether the instruction in the field F4 is 31H, 32H, or 33H.

As a result of the determination in step S4, if the command in the field F4 is 31H, the command is a power consumption command, and thus the microcomputer 13 proceeds to step S7 to use, which has been stored in the storage unit 14. After the ID is added to the power amount information, it is transmitted to the hand terminal 20 through the transceiver 16 (S7).

However, if the instruction in the field F4 is 32H as a result of the determination in step S5, the instruction is a power consumption change instruction, so the microcomputer 13 proceeds to step S8 and is stored in the storage unit 14. The used power amount information is erased, and the used power amount information in the field F7 is stored in the storage unit 14 (S8). Therefore, the storage unit 14 stores the amount of power usage information transmitted from the hand terminal 20.

However, as a result of the determination in step S6, if the instruction in the field F4 is 33H, the instruction is an ID changing instruction, so the microcomputer 13 proceeds to step S9 and stores itself in the storage unit 14. The ID of the field F8 is erased and the ID of the field F8 is stored instead of the erased ID. Therefore, the ID newly added by the hand terminal 20 is newly stored in the storage unit 14 as the ID of the remote meter reading meter 10.

That is, the remote meter reading meter according to the present invention can transmit the metered power consumption according to the command of the hand terminal, or store the power consumption or ID from the hand terminal as new power usage information or ID.

Therefore, the present invention has the effect that it is possible to simply change the amount of power used and ID of the remote meter reading meter.

Claims (1)

The remote meter reading meter stores the amount of used power and a predetermined ID in the storage unit 14 and wirelessly transmits the amount of used power and ID to the hand terminal 20 according to a command from the hand terminal 20. As a driving method, Determining whether a header added to the command from the hand terminal 20 is the same as a preset header; If the header is the same as a preset header, determining whether an ID added in the command is the same as an ID in the storage unit 14; If the ID is the same as the ID in the storage unit 14, determining whether the command is a power usage transfer command, a power usage change command, or an ID change command; If the command is the power amount transfer command, transmitting the power amount information and the ID in the storage unit 14 to the hand terminal; If the command is an instruction to change the amount of power used, erasing the amount of power used information in the storage unit 14 and storing the amount of power used in the command in the storage unit 14; If the command is the ID change command, erasing an ID in the storage unit and storing the ID added to the command in the storage unit.