KR20000058916A - Remote inspection of a meter method and device using watt hour meter therefor - Google Patents

Abstract

PURPOSE: A method for remotely checking a meter using a digital watt hour meter, is provided to use micro wave communication technologies in a magnetic field film generated in the flow of currents to a cable, when checking the meter after accumulating checked power consumption in a memory, so as to perform a remote check without visiting a place having the watt hour meter. CONSTITUTION: A system for checking a meter remotely has a digital watt hour meter, a remote meter checking system, a communication device and a communication network. The meter checking time of a user is pre-set up in the remote meter checking system, to transmit a checking data transmission instruction to the digital watt hour meter through the magnetic field film of a power line in the day of meter checking. A power consumption is checked, when the digital watt hour meter receives the checking data transmission instruction. The checked power consumption and the peculiar name of the user are transmitted through the magnetic field film of a power line in the digital watt hour meter. And, a charge corresponding to the power consumption is calculated, when the remote meter checking system receives the checked power consumption and the peculiar name.

Description

Remote metering device using digital integrated power meter and its method {REMOTE INSPECTION OF A METER METHOD AND DEVICE USING WATT HOUR METER THEREFOR}

The present invention relates to a remote meter reading device and a method using a digital integrated power meter, especially those that occur when the current flows in the wire after converting the digital value by calculating the amount of power used by the detection of current and magnetic field flowing around the wire The present invention relates to a remote meter reading device and a method for reading the amount of power used at a remote location by using microwave communication technology in the curtain.

Typically, the meter reader visited these homes or offices to read the amount of electricity displayed on the integrated power meter installed inside or outside the home. The measured data were recorded manually in the ledger of the meter, went through the computerized input operation, and then operated the system to issue bills to each customer by the computer system. However, such a system requires a lot of metering personnel and computational manpower to increase costs, and at the same time, there is an inefficient and unreasonable problem of billing due to manual input errors of metering data.

In order to solve this problem, as disclosed in Korean Laid-Open Patent Publication No. 1998-019249, the supplier side system and the receiver side system are wirelessly connected, and the amount of usage detected by the receiver side is transmitted to the supplier side system by wireless communication for remote meter reading. Although the method has been developed, it is very likely to cause crosstalk between adjacent bands because each receiver transmits using a specific frequency, so there is a great possibility of crosstalk between adjacent bands. There is a difficult problem with the economics of investing money.

Accordingly, an object of the present invention is to provide a remote metering device and method for using the digital integrated power meter to read the amount of power used at a remote location using a microwave communication technology in the magnetic field generated when a current flows in the wire, a new communication technology. In providing.

In order to achieve the above object, the present invention calculates the amount of electric power used by detection of current and magnetic field flowing around a wire and integrates it into an internal memory, and then uses a microwave communication technology in a magnetic field generated when current flows through the wire. In the customer's unique name and the amount of power used to read (search) is characterized.

1 is a block diagram of a remote meter reading device using the power line of the embodiment of the present invention

2 is a detailed configuration diagram of a digital integrated power meter 18 according to an embodiment of the present invention.

3 is a detailed configuration diagram of a communication device 12 according to an embodiment of the present invention.

4 is a flowchart illustrating a process of reading a used power amount using a power line according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: power plant 12: communication device

14: substation 16: transformer

18: digital integrated power meter 20: communication network

22: remote meter reading system 31: transformer

31, 33: First and second A / D converter 34: Current transformer

34: operation control unit 35: power amount display unit

36: power amount driving unit 37: integrated power amount display unit

38: memory 39: communication processor

40: microprocessor 42: display unit

44: external communication interface 46: power line modem

48: power line interface and power supply

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

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a block diagram of a remote meter reading device using the magnetic field of the power line of an embodiment of the present invention.

The power plant 10 produces power and supplies it to each customer via the substation 14 and the transformer 16. The communication device 12 transmits the meter reading data transmission command to the digital integrated power meter 18 through a magnetic field film generated when a current flows through the power line supplied from the power plant 10, and the power consumption transmitted from the integrated power meter 18. Detect the meter reading data for the transmission through the communication network 20 to the remote detection system 22. The substation 14 receives electric power from the power transmission line supplied from the power plant 10 and drops the voltage to supply the electric wire. The transformer 16 drops the voltage supplied from the wire and supplies it to the customer. The digital integrated power meter 18 detects the current and the magnetic field flowing from the wire to the customer, detects the amount of power used, stores it in the internal memory, and when the meter data transmission command is received from the supplier, the integrated power meter is used. (Recipient) Send with unique name. Here, the unique name can be used in various forms, such as numbers or mixed forms of numbers and letters. The remote meter reading system 22 may be configured as a computer, generates and outputs a meter reading data transmission command for remote meter reading, receives power usage meter reading data corresponding to the meter reading data transmission command, creates a bill, and creates a bill. E-mail is controlled, and the billing data is requested to the financial settlement agency to receive the fee payment data and update the payment processing status. In this case, the date of electricity meter reading and the date of payment of the fee according to the amount of electricity consumption may be freely designated as a date desired by the customer without being uniformly collectively. Subsequently, the communication network 12 sends the meter reading data transmission command received from the remote meter reading system 22 to the communication device 12, and transmits the meter reading data received in response thereto to the remote meter reading system 22. In accordance with the request of the meter reading system 22 to connect the Internet network.

2 is a detailed configuration diagram of a digital integrated power meter 18 according to an embodiment of the present invention.

The transformer 30 drops to a voltage of a predetermined level in order to detect a voltage applied to the customer's line. The first A / D converter 31 converts the voltage dropped from the transformer 30 into digital data and supplies the digital data to the operation controller 28. The current transformer 32 converts the current flowing on the line to a predetermined level. The second A / D converter 33 converts the current flowed from the current transformer 32 into digital data and supplies the digital data to the operation controller 34. The operation control unit 34 receives the digital voltage and the digital current values output from the first and second A / D converters 31 and 33 to calculate and display the amount of power, and may have a meter reading period or a meter reading request. In this case, the power consumption should be transmitted to the supplier. The power amount display unit 35 displays the amount of power used under the control of the operation control unit 34. The power amount driver 34 drives the integrated power amount display unit 37 according to the digital pulse signal applied from the operation controller 34 to display the total amount of power used. The memory 38 stores the amount of power calculated by the control of the operation control unit 34 and the current amount of power used by the power calculation program based on the use time. The communication processor 39 receives the power meter reading request signal through the magnetic shield of the power line, and controls to transmit the used power calculated from the operation controller 34 to the supplier through the magnetic shield of the power line.

3 is a detailed block diagram of the communication device 12 according to the embodiment of the present invention.

The microprocessor 46 transmits the meter data transmission command by the application program, and controls the meter data received from the power line to be stored in the internal memory or displayed on the display unit 42. The power line communication device 48 demodulates the meter data received through the power line and transmits the demodulated data to the microprocessor 40 or modulates the meter data transmission command output from the microprocessor 40 and transmits the read data to the power line. The display unit 42 displays the amount of used power read by the control of the microprocessor 40. The external communication interface 44 receives the meter reading data transmission command from the outside and transmits it to the microprocessor 40, and interfaces the power consumption measured by the microprocessor 40 to be transmitted to the outside.

4 is a flowchart illustrating a method of reading the amount of power used by using a magnetic film of a power line according to an embodiment of the present invention.

1 to 4, the operation of the preferred embodiment of the present invention will be described in detail.

The present invention is to replace the analog wattmeter with a digital wattmeter and to develop a microprocessor chip, using a microwave communication technology using a magnetic field generated when electricity flows through the power line, the unique name and metering data of the wattmeter The power consumption is transmitted to the remote metering system so that the power consumption can be read remotely. Referring to the flowchart of FIG. 4, an operation of remotely reading the amount of power used in two-way communication using the microwave communication technology using the magnetic field film will be described.

First, in step 101, when the digital integrated power meter is installed to supply power to the consumer, the unique name and the metering period of the consumer are set up. In step 102, the remote meter reading system 22 checks whether the meter reading date is reached, and if it is the meter reading date, proceeds to step 103. Here, the meter reading date can be freely determined by the date desired by the customer, and the fee payment date according to the power consumption can be freely determined according to the intention of the recipient. In step 103, the remote meter reading system 22 generates a meter reading data transmission command and transmits the meter reading data to the communication device 12 through the communication network 20. In this case, the communication device 12 receives the received meter reading data transmission command through the external communication interface 44 and sends it to the power line communication device 46. The power line communication device 46 receives the reading data transmission command through the interface and the power supply unit 48 to the communication processing unit 39 of the digital integrated power meter, and transmits it to the operation control unit 34 from the communication processing unit 39. At this time, the operation control unit 34 reads the power consumption and the integrated power meter unique name stored in the memory 38 and transmits it to the communication processing unit 39. Then, the communication processor 39 transmits the power consumption and the integrated power meter unique name through the magnetic shield of the power line. The transmitted power consumption and the integrated power meter unique name are transmitted to the remote detection system 22 through the communication network 20 through the external communication interface 44. Then, in step 104, the remote meter reading system 22 receives the integrated power meter (consumer) unique name and power consumption. Thereafter, in step 105, the remote meter reading system 22 checks whether the meter is normally read, and if the meter is not normally read, returns to step 103 and repeats the above-described operation. However, if the meter is normally read, the flow proceeds to step 106 and the remote meter reading system 22 calculates the usage fee using the received power consumption. In step 107, the consumer of the unique name of the integrated power meter is checked whether the delinquent is overdue. If not, proceed to step 109 to create a bill for power consumption and usage fee using the billing database. However, if the customer of the unique name of the integrated power meter is the delinquent, the remote meter reading system 22 calculates the overdue fee in step 108. In step 109, the remote meter reading system 22 uses the billing database to create an invoice for power consumption and overdue charges and a bill for current power usage and usage charges. Thereafter, in step 110, if the bill is generated by e-mail (e-mail), it will be determined and sent by e-mail. However, if it does not occur by e-mail, the process proceeds to step 112 to print out the completed bill and send it by mail. When the payment deadline is passed after sending the bill, the remote meter reading system 22 transmits the billing data to the financial settlement agency through the communication network 20. Receive payment data for In step 115, the received data is processed, and in step 116, it is not deposited. In this case, if the payment has not been made, proceed to step 117 to process the delinquency, and in step 119, update the delinquency to the customer database. However, if the deposit is completed in step 116, the process proceeds to step 118 and the deposit is processed, and in step 119, the deposit is made in the customer's database.

As described above, the present invention detects the amount of power used by using a digital integrated power meter and integrates it into a memory, and then uses the microwave communication technology on a magnetic field generated when current flows in the wire to read the power to remotely read the amount of power used. Therefore, remote meter reading is possible without visiting the place where the integrated power meter is installed, and it does not require a lot of manpower for meter reading, which saves a lot of cost and can perform the most accurate and quick metering and billing tasks most economically and efficiently. have.

In addition, it is easy to put into practical use without large-scale investment through low-cost development of communication and remote control method and communication equipment. In addition, the bill is also sent by e-mail (e-mail) in connection with the Internet network, thereby reducing the billing cost and providing a lot of convenience to the customer by paying the bill or providing notices and other services.

Claims (12)

In the remote meter reading device using a digital integrated power meter, Supply power to the customer, detect the current and magnetic field flowing from the wire, detect the amount of power used and store it in the internal memory.When receiving the power consumption transmission command from the remote metering system, the accumulated power amount and the integrated power meter Generate and transmit a digital integrated power meter and a meter reading data transmission command for a remote meter reading, receive the power usage meter data corresponding to the meter data sending command, create a bill, and control to send the bill by email. A remote meter reading system that transmits billing data to the KFTC and receives payment fees and updates the payment processing status; A communication device for transmitting a reading data transmission command to the digital integrated power meter through a magnetic shield of a power line, and transmitting meter reading data on power consumption transmitted from the integrated power meter to a remote meter reading system through a communication network; Send a meter data transmission command received from the remote meter reading system to the communication device, and transmits the meter reading data received in response to the remote meter reading system, and connects the Internet network as required by the remote meter reading system. Remote meter reading device using a digital integrated power meter, characterized in that. The digital integrated power meter of claim 1, A transformer for lowering to a predetermined level of voltage to detect a voltage on a customer's line; A first A / D converter converting the voltage dropped from the transformer into digital data and outputting the digital data; A current transformer for directing current flowing on the power line to a predetermined level; A second A / D converter converting the current flowing from the current transformer into digital data and outputting the digital data; A control unit for receiving the digital voltage and the digital current value output from the first and second A / D converter to calculate and display the amount of power, and to transmit the amount of power to the supplier when a meter reading period or meter reading request Wow, A power amount driver for driving the integrated power amount display unit according to the digital pulse signal applied from the operation control unit to display the total power consumption; A memory for storing the amount of power calculated by the control of the calculation control unit and the current amount of power used by the power calculation program based on the usage time; And a communication processor configured to receive a power meter reading request signal through a power line, and to control the amount of power calculated from the calculation control unit to be transmitted to a supplier through a power line. The method of claim 1, A remote meter reading device using a digital integrated power meter, characterized in that the date of payment and the meter reading date specified by the user. The method of claim 2, Remote meter reading device using a digital integrated power meter characterized in that it comprises a digital integrated power meter for displaying the amount of power used by the operation control unit. According to claim 1 or 2, wherein the communication device, A microprocessor which generates and outputs a meter data transmission command according to an application program, and stores or displays meter data received from a power line in an internal memory; A power line modem which demodulates meter reading data received through a power line and transmits it to the microprocessor through an internal interface unit, or modulates a meter data transmission command output from the microprocessor and outputs the power to the power line; An internal interface for interconnecting the microprocessor and the magnetic shield communication equipment of the power line to enable an interface; Remote meter reading device using a digital integrated power meter, comprising an external communication interface receiving the reading data transmission command from the communication network to the microprocessor and interfacing the measured power consumption from the microprocessor to the communication network . A digital integrated power meter that detects the current and magnetic field flowing from the wire for supplying to the customer, detects the amount of power used, and transmits it to the supplier; Generate and output meter reading data transmission command for remote meter reading, receive power usage meter reading data corresponding to the meter reading data sending command, create a bill, control to send the completed bill by email, and send bill data A remote meter reading system for receiving the fee payment data and updating the payment processing status upon request; A communication device configured to transmit a meter reading data transmission command to the digital integrated power meter through a power line magnetic shield, and to detect meter data regarding power consumption transmitted from the digital integrated power meter and to transmit it to the remote meter reading system through a communication network; A communication network configured to send a meter reading data transmission command received from a remote meter reading system to a communication device and to transmit meter reading data received in response to the meter reading, and to connect an internet network according to the request of the meter reading system. In the remote meter reading method using a power line of a system, Setting up the meter reading period of the customer in advance in the remote meter reading system and sending a meter data transmission command to the digital integrated power meter through a power line magnetic shield when the meter reading date is reached; Reading power consumption when receiving a reading data transmission command from the digital integrated power meter; Transmitting, by the digital integrated power meter, the power consumption to be read through the power line magnetic shield together with a customer unique name; And a method of calculating a usage fee corresponding to the received power consumption when the metered power consumption and the unique name are normally received by the remote meter reading system. The method of claim 6, After calculating the fee and checking whether there is an overdue in the calculated customer; Calculating the overdue fee when the calculated customer is overdue, And a process of preparing an invoice for billing the calculated delinquent fee and the calculated fee for use. The method of claim 7, wherein And a process of preparing an invoice based on the calculated fee for use of the customer when there is no overdue in the calculated customer. The method according to claim 7 or 8, The method of claim 1, further comprising the step of sending the e-mail through the communication network via the communication network when the bill is sent by e-mail meter reading method using a digital integrated power meter. The method of claim 8, If the invoice can not be sent by e-mail after filling out the billing method using a digital integrated power meter characterized in that it further comprises the step of outputting the sent bill. The method of claim 8, After the payment deadline has passed, the billing data is transmitted to the Financial Services Commission through the communication network to request payment fee and receive the fee payment data; Receiving the fee payment data and detecting whether the payment has been received; If the fee is not received, the process of overdue and update the customer database of the remote meter reading system, If the fee is received, the process of depositing the remote meter reading method further comprises the step of updating the customer database of the remote meter reading system. The method of claim 6, A remote meter reading method using a digital integrated power meter, characterized in that the date of payment and the meter reading date to the date desired by the user.