KR20020054261A - Method of the automatic meter reading through the indoor line except power line - Google Patents

Abstract

PURPOSE: A telemetering data collecting method using an indoor line except a power line is provided to freely collect checked data regardless of time and place, and the condition of the power line with maintaining a high degree of reliability. CONSTITUTION: The telemetering data collecting system using an indoor line except a power line is comprised of receptors having meters to be checked in a telemetering manner; collection control transmission devices for receiving and calculating pulse signals from the meters to make inspection data in a signal form; and a relay transmission device for processing signals from an indoor line as a signal passage to restore the checked data and sending the data to a collection center through an internet network.

Description

Method of collecting remote meter reading data using indoor line except power line {Method of the automatic meter reading through the indoor line except power line}

The present invention relates to a remote meter reading data collection method using an indoor line other than the power line, in particular, offices that are far away from the instrument panel values of various types of meters, such as power meter, water meter, hot water meter, gas meter, calorimeter It is about how to collect data quickly, accurately and reliably at low cost in data processing places such as company, company and institution.

Up to now, it is common to send various data generated when the meter data is collected from the meter of each distant customer to make the data packet and transmit it by modulating it on the radio frequency or sending the return data to the processing site in the case of wired lines. Way. However, in the case of radio radio, the output or communication distance of the equipment is limited by the radio law, so it can only do near field communication. In addition, in the case of power line communication (PLC), a lot of noise is mixed in the power line by the universalization of inverter fluorescent lamps as well as the inverter of electric motors for various home appliances. It is difficult to guarantee reliability.

The present invention solves this problem because the transmission line transmits the metering data using an indoor line, not an electric power line, that is, a broadcasting speaker line or an interphone line in a group building such as an apartment. In addition, the data packets collected in this way are connected to the general public network, ie, telephones, leased lines, and the Internet through relay transmission devices, so that data collection processing can be performed regardless of time and place.

An object of the present invention is to detect the pulse signal generated according to the amount of usage from the various meters of the consumer to digital data, modulated to a frequency higher than the audible frequency, and then to the relay transmission device installed in the management office, etc. through the speaker line or interphone line It transmits and then transmits it to the required place through the public network and collects it for use according to its purpose.

1 is an overall block diagram of the present invention.

2 is a block diagram of a collection control sending device;

3 is a block diagram of a relay transmission device;

Explanation of symbols on the main parts of the drawings

1-1 to 1-n: Customer 2-1 to 2-n: Collection control sending device

3: indoor line 4: relay transmission device

5: public network (telephone, leased line, Internet) 6: collection center

7 Meter 8 Microcontroller

9: transformer / demodulator 10: carrier wave oscillator

11: RS-485 converter 12: Band filter

13: indoor track 19: connection means

The configuration for achieving the object as described above is characterized in that it consists of various meters, collection control transmission device, relay transmission device, a public network such as a telephone line dedicated Internet, a collection center and link software for connecting and operating the pulse signal is generated. It is done.

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

1 is a block diagram showing the overall block diagram of the present invention. The meter is largely divided into a customer (1-1) to (1-n) having a meter to be subjected to a remote meter, and the pulse signal is received from these various meters to read the meter. Acquisition and processing of collection control transmission devices (2-1) to (2-n) for generating and signaling data, and receiving and processing signals from the indoor line (3) and the indoor line (3) serving as the passage of the signal, thereby restoring the meter reading data. And a relay transmission device 4 which transmits the data to the collection center 6 through a public network 5 such as a dedicated telephone line Internet.

Fig. 2 shows a specific block diagram of the collection control transmission device 2-1, which counts the amount of power, water, hot water, gas, and heat used to output pulse signals, and counts received from them. The microcontroller 8 and the carrier frequency generated by the carrier oscillator 10 and the microcontroller 8 for calculating and arranging the pulse signal, converting the data into a digital signal that can be transmitted, and managing all the controls in the collection control transmission device 2-1. A modulator / demodulator 9 for demodulating the signal to a RS-485 converter 11, which is a line signal converter, or demodulating an external carrier signal from the RS-485 converter 11 into a digital signal and sending it to the microcontroller 8; ) And a band pass filter (12) which prevents the influence of the existing audible frequency signal because only the communication signal is passed, and the indoor line (13) which is a passage of these signals. It shall be.

FIG. 3 shows a detailed block diagram of the relay transmission device 4, which is an indoor line 13 which is a meter data communication line, a band filter 14 which passes only an effective part of the signal of the line, and an RS which is a line signal converter. -485 converter 15 and the communication signal received through it are demodulated to digital signal and sent to or from microcontroller 18 in charge of all signal processing and control in relay transmission device 4 or from digital microcontroller 18. Connection means (19) for transmitting data between the microcontroller (18) and the public network (5) and the modulator / demodulator that modulates the signal into a carrier frequency signal of the carrier oscillator (17) and sends it to the RS-485 converter (15). Characterized in that consists of.

Referring to the operation of the present invention configured as described above is as follows.

First, as shown in FIG. 1, when the count pulse signal of each meter is generated in the tens or hundreds of customers (1-1) to (1-n) having various types of meters, the respective collection control transmitters 2 -1) to (2-n) receive the counted pulse signal from the meter that they manage, calculate and arrange the counted pulse signal, and store predetermined identification data in each collection control transmission device (2-1) to (2-n). Is attached and connected in parallel to the indoor line (3), not the power line, it is characterized in that the reception is always in the standby state. The relay transmission device 4 is also connected to the indoor line 3 in parallel, and calls each collection control transmission device 2-1 to 2-n sequentially, and sends itself through the indoor line 3. When the identification data signal to be called is received, the collection control transmission device (2-1) to (2-n) sends the meter data stored in its operation to the indoor line (3), and the relay transmission device (4) The meter data is collected. In addition, the relay transmission device 4 is connected to a collection center 6 of each supplier that needs a meter reading through a public network 5 such as a general telephone, a leased line, and the Internet. It is characterized in that the structure that can collect the meter reading data at any time.

Fig. 2 shows a specific block diagram of the collection control transmission device 2-1. Various meters 7 such as electric power, water, hot water, gas, and heat quantity count the amount of usage to output pulse signals, and count pulse signals. Is applied to the microcontroller 8. The microcontroller 8 is characterized by calculating and arranging the counting pulses, converting them into data, converting them into transmittable digital signals, and updating them in the built-in memory, and managing all the controls in the collection control transmission device 2-1. The call data communication signal coming into the indoor line 3, not the power line, is removed through the band filter 12, the audible frequency signal is removed, the signal waveform is shaped by the RS-485 converter 11, and the demodulator / demodulator 9 is demodulated. When it is converted into a digital signal is input to the microcontroller (8). The microcontroller 8 analyzes this data and converts the meter reading data updated in the memory into a digital signal when it matches the identification data, i.e., the ID, to the modulator / demodulator 9. The digital signal is modulated to the carrier frequency generated by the carrier oscillator 10 and transmitted to the RS-485 converter 11, which is a line signal converter, so that the communication signal is prevented from affecting the existing audio frequency signal. It is characterized in that it is sent to the indoor line 13 which is filtered to be the passage of these signals.

3 shows a specific block diagram of the relay transmission device 4, in which the microcontroller 18 includes all of the collection control transmission devices 2-1 to (2-) that the relay transmission device 4 is in charge of. n) the identification data, i.e., the digital signal of ID, is modulated to the carrier frequency generated by the carrier oscillator 17 and sent to the RS-485 converter 15, which is a line signal converter, so that this communication signal does not affect the existing audio frequency signal. The filter is filtered by the band pass filter 14 and is sequentially sent out through the indoor line 13 serving as a passage of these signals. Then, each collection control transmission device (2-1) to (2-n) is reading data from the collection transmission device (2-1) to (2-n) received the corresponding recognition data, that is, the ID as described in FIG. When the communication signal is sent to the indoor wiring 13 and the communication signal is removed through the band filter 14, the audible frequency signal is removed, the signal is shaped by the RS-485 converter 15 and demodulated by the modulator / demodulator 16. It is converted into a digital signal and input to the microcontroller 18. The microcontroller 18 stores this metering data in its own memory and receives the call data signal from the collection center 6 through the public network 5 and its connecting means 19. 19 and the collection center (6) through the public network to be characterized in that to send.

As described above, according to the present invention, a counting pulse is received from a meter such as electric power, water, hot water, gas, and calorie, and processed to convert the meter reading value into digital data, and to modulate a frequency higher than the audible frequency to interfere with a general voice signal. Then, do not use the power line with noise or unstable impedance and transmit it to the relay transmission device through the speaker line or the interphone line, connect to the public network such as telephone, leased line, and the Internet, collect the necessary place, and then process it according to the purpose. Can be used Therefore, this method is a very useful invention that can remotely read the metering data generated in various forms using the existing indoor line, not the power line, regardless of noise or line condition.

Claims (3)

Customer (1-1) to (1-n) having a meter to be remotely metered, and a collection control transmission device (2-1) to (1-1) which receives and calculates pulse signals from these various meters to generate and signal metering data. 2-n), and receive and process the signal from the indoor line (3) and the indoor line (3), which is a passage for this signal, to restore the meter reading data, and collect the data through a public network (5) such as a telephone-only line Internet. (6) A remote meter reading data collection method using an indoor line other than a power line, characterized by consisting of a relay transmission device (4) sent to (6). The various meter 7 for counting the amount of power, water, hot water, gas, and calorie used as the collection control transmission device 2-1 and outputting a pulse signal, and counting pulse signals received therefrom. The microcontroller 8 which organizes and converts the data into a digital signal which can be transmitted and manages all the controls in the collection control transmission device 2-1, and modulates this digital signal to the carrier frequency generated by the carrier oscillator 10 Communication signal with the modulator / demodulator 9 sent to the RS-485 converter 11, which is a signal converter, or demodulated to an digital signal by demodulating the external carrier signal from the RS-485 converter 11 to the microcontroller 8; The power line is characterized in that it consists of a band pass filter (12) for passing the bay so as not to affect the existing audible frequency signal and an indoor line (13) that is a passage of these signals. Remote meter reading data collection method using the indoor track. 2. The RS-485 converter (15) according to claim 1, wherein the indoor line (13) which is a meter data communication line like the relay transmission device (4), a band filter (14) which passes only an effective part of the signal, and a line signal converter (15). And demodulate the communication signal received through the digital signal to the microcontroller 18 in charge of all signal processing and control in the relay transmission device 4 or transmit the digital signal from the microcontroller 18 to the carrier oscillator 17. And a modulation / demodulation unit for modulating the carrier frequency signal of the transmitter to the RS-485 converter 15 and connecting means 19 for data transmission between the microcontroller 18 and the public network 5. Remote meter reading data collection method using indoor lines other than the power line.