KR20030075263A - Both water, gas metering and disaster alarm, security data processing SIU contained watt hour meter - Google Patents

Abstract

PURPOSE: A power meter including SIU(System Interface Unit) to inspect a service water meter and a gas meter and process disaster data and security data is provided to measure and manage the voltage and the current of plural transformers by combining power cables and power meters with mobile communication, short distance wireless communication, and power line communication. CONSTITUTION: A power meter including SIU to inspect a service water meter and a gas meter and process disaster data and security data includes a power meter portion(110), a main control portion(120), a pulse sense portion(140), a wireless communication portion(150), and a PLC modem portion(130). The SIU stores the power meter value and measure values of service water and gas into a RAM(124). The power meter value is received from an infrared interface portion(111) of the power meter portion(110) to an infrared interface portion(122) of the main control portion(120) and an interrupt generation portion(129). The measured value is obtained from a serial communication port(123) through a service water meter and a gas meter and a pulse sense portion(140). The SIU alarm signal according to disaster information and the security information which are received through a gas leakage sensor, a disaster sensor, the pulse sense portion(140), the interrupt generation portion(129), and the serial communication port(123). A wireless communication portion(150) of the SIU is connected to a wireless communication portion of a wireless unit having ID in order to perform the data communication.

Description

One may embed S. IU integrating meter, disaster prevention and security information of the gassing power meter {Both water, gas metering and disaster alarm, security data processing SIU contained watt hour meter}

In the present invention, a power company combines mobile communication, short-range wireless communication, and power line communication to configure a remote meter reading system.

Customers do not have to install SIU (System Interface Unit) that integrates remote meter reading, disaster prevention and security information of electric water gas.

Integrate meter reading with water meter if necessary

It is usually used as a disaster prevention and security system such as detection and detection of harmful gas.If the SIU of electricity meter is in the process of metering electric water gas, if there is disaster prevention or security information such as gas leakage, it will be interrupted and interrupted the metering operation. Do the job first.

In addition, a power failure compensation circuit (including backup power supply) and a power failure detection unit are installed in a data concentrator (data concentrator, area controller, and sector controller) that attaches to the secondary line of the transformer to monitor and load the transformer. Check whether the CDMA is turned off directly at the carrier or meter center or at the carrier.

By using the built-in microcontroller, the power meter of the customer assigned with ID is sequentially called at each set time (e.g. 30 seconds) to check whether there is a power failure or failure. Maintain a secure communication line.

There is a remote metering system that accumulates the pulse signal generated from the meter by connecting a plurality of meters, such as electric water gas, to the central computer separately installed, and delivers it to the central computer through a wired / wireless communication network. As the security system communication network was installed and operated separately, it was economically wasteful.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the communication network constructed by the power company organically combining wireless or mobile communication short-range communication PLC communication with the load monitoring of the transformer and the remote metering system of the electricity meter and the load monitoring of the transformer In addition to reading electricity consumption, the primary purpose is to use it as a communication network for disaster prevention and security systems, such as integrated meter reading of water gas and gas leakage alarms.

In addition, there is no SIU that integrates their information in the customer, and built-in (or removable sealing) power meter, disaster prevention detectors such as water gas meter and gas leakage detector with pulse output function are binary for each pulse generator of each device. By inserting a resistor corresponding to the value in multiples and binding it in parallel to 2-Wire and connecting it with a power meter and one connection terminal, it is possible to detect information such as pulse and gas leakage of each device and detect fraud such as disconnection short circuit. If the location of the disaster prevention detector such as water gas meter, gas leakage detector, and security system is far from the electricity meter or the wired connection is inconvenient, leave the wireless communication unit in the meter's SIU. Combined power meter that allows data communication with wireless device of each device There is a second purpose to provide.

In order to achieve the above object, a power meter of a customer provided with a power failure compensation circuit (including a backup power supply) and a power failure detection unit (voltage measuring terminal and PLC connection terminal) in a data concentrator of a transformer secondary line and assigned an ID for each phase Maintain a stable disaster prevention and security communication network by calling sequentially every predetermined time (e.g. 30 seconds) to check for power outages or failures and to continuously monitor the load of the transformer and notify the computer of the meter reading center if there are any abnormal symptoms.

1 is a block diagram showing the configuration of a power meter applied to the present invention

2 is a block diagram of a main data concentrator applied to the present invention.

3 is a block diagram of a data concentrator applied to the present invention.

4 is a block diagram showing a schematic configuration of a hybrid communication system applied to the present invention

Figure 5 is a schematic connection circuit resistance connection diagram of the integrated meter reading and external security system of one embodiment applied to the present invention

<Explanation of symbols for main parts of drawing>

100: power meter 110: power meter

111: infrared interface 112: microprocessor

113: A / D converter 114: Clock control unit

115: ROM 116: RAM

117: FLASH memory 118: power

120: main controller 121: microprocessor

122: infrared interface 123: serial communication

124: RAM memory 125: ROM memory

129: interrupt generation unit 130: PLC modem communication unit

140: pulse detection unit 150: wireless communication unit

200: main data concentrator 210: microprocessor

214: voltage checker 215: current checker

216: power failure compensation circuit 300: data concentrator

310: microprocessor 313: voltage check unit

314: current check unit 315: electrostatic compensation circuit

410: gas meter 420: water meter

430: boiling water meter

The present invention is a remote meter reading system of the electricity meter connected by wireless communication or PLC communication such as mobile communication

In order to explain the configuration of the electricity meter, it is built into the electricity meter without installing a system interface unit (SIU) that integrates disaster prevention and security information such as remote meter reading and gas leakage detection. If it is determined that the description may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Power supply unit 217, the power failure compensation circuit (including backup power supply) 216, the power failure detection unit (voltage measurement terminal and PLC connection terminal) output to the secondary line of the pole transformer arbitrarily selected by the power company (214) ), A main unit that integrates and operates as a single microprocessor 210 having a unique protocol by combining a voltage and current measuring device 215, a mobile communication 211, a short range communication module 213, and a PLC communication module 212. The main data concentrator 200 is installed.

The main data concentrator 200 communicates with the meter reading center 10 by mobile communication, and stores and stores the load of the transformer by time zone by date, and receives a power consumption meter supplied from the transformer by the PLC communication 212. It communicates and reads and saves power consumption by calling sequentially using ID given to electricity meter for each phase.

The secondary line of the columnar transformer around the main data concentrator 200 has a power supply unit 316 output by DC power, a power failure compensation circuit (including a backup power supply) unit 315, a power failure detection unit (voltage measurement terminal and PLC connection terminal). 313, the voltage and current measurement device 314, the short-range communication module 311 and the PLC communication module 312 by combining the integrated data management as one microprocessor 310 with a built-in protocol The data concentrator 300 is installed.

The data concentrator 300 communicates with the main data concentrator 200 and the short range wireless communication 311, and monitors the load of the transformer and the power consumption of the consumer electricity meter. After reading and temporarily storing the meter in the same manner as the generator 200, the transmitter loads the main data concentrator 200, stores it, and loads the transformer by the method of mobile communication according to the request of the meter reading center 10 computer. Transmit monitoring and meter reading.

The customer has a digital or pulsed output function by installing (or detachably sealing) the electricity meter 100 without installing a system interface unit (SIU) that integrates remote meter reading, disaster prevention and security information of electric water gas. Disaster prevention detectors such as gas meters, gas leakage alarms and security systems are connected to the electricity meter (100).

The power meter 110 of the electricity meter 100 includes a conventional infrared interface 111, a microprocessor 112, an A / D converter 113, a clock controller 114 having a timer function, and a ROM memory (ROM) 115. And a RAM memory (RAM) 116, a flash memory (FLASH) 117, and a power supply 118.

SIU is composed of four parts of the main controller unit 120, PLC modem communication unit 130, pulse detection unit 140, the wireless communication unit 150 is connected to the power meter 110.

The SIU is operated by a program in which the microprocessor 121 of the main controller unit 120 has a built-in program, and performs data communication with the data concentrator 300 through the PLC modem communication unit 130 to transmit the stored meter reading data upon request for meter reading.

Even during the meter reading service, if the disaster prevention and security information classified by the interrupt generator 129 is directly received from the serial communication port unit 123 or through the pulse detecting unit 140, the meter reading service is immediately stopped and an alarm is sent to the data concentrator. Through 300, the computer of the meter reading center 10 is notified so that the power company or the related organization can cope.

The meter reading service interrupts the amount of power delivered from the infrared interface 111 of the power meter 110 to the infrared interface 122 of the main controller 120 and the pulse of the water gas meter entering the pulse detector 140. The division 129 stores the measured value stored in the serial communication port 123 or interpreted as a measured value in the instruction storage RAM memory 124.

The pulse detection unit 140 is connected to external devices, and inserts a resistance of multiples corresponding to a binary value for each pulse generator of each device such as a meter and a gas leakage detector to bind in parallel to 2-Wire, and to run a water gas meter. Receives signals from disaster prevention and security devices such as gas leakage detectors, passes them through the pulse detector 140 to the interrupt generator 129, and the microprocessor 121 analyzes and reads the information data in the ROM memory 124. And handle alarms.

In addition, if you want to connect the existing security system with the electricity meter is connected to the serial communication port (123).

At this time, if the water gas meter, gas leakage detector, etc. are far from the electricity meter or the wire connection is difficult, the wireless communication unit 150 has an option type in which an operation program is built so as to communicate data with the wireless device of each device to which the ID is assigned. Provided with bidirectional wireless communication connector.

In order to secure a reliable and stable communication network, the main data concentrator 200 and the data concentrator 300 of the transformer secondary line have a blackout compensation circuit (including a backup power supply) 216 (315) and a blackout detection unit (214) (313). If a power failure detection unit 214 (313) detects a power failure by using a voltage measuring terminal and a PLC connection terminal, the power failure detection signal is received and replaced by a backup power supply, and the power failure detection unit 10 is notified to the meter reading center 10.

The main data concentrator 200 and the data concentrator 300 sequentially call the electricity meters of the customer 30 assigned the ID for each phase every predetermined time (for example, 30 seconds) to check whether there is a power failure or failure to generate a power failure or failure. Immediately notify the meter reading center,

Check whether the mobile communication modem 211 of the main data concentrator 200 is operated by polling the computer of the metering center 10 by the method of continuously polling or if the abnormal symptom occurs when the mobile communication company 20 is dedicated. The computer of the center 10 is notified, and if necessary, a connection with 119 or a security company is required.

The electricity meter 100 with a built-in SIU (System interface unit) that processes metering, disaster prevention and security information of water gas is applied regardless of whether it is PLC communication or wireless communication. In the case of wireless communication, the PLC modem communication unit 130 Instead, it is replaced by a wireless modem communication unit, and especially in the case of a large-scale electricity meter that is remotely metered by mobile communication, the economic effect can be greater.

Reference numerals 218 and 317 denote clock control units having a timer function, and 219 and 318 denote memories.

The present invention described above is not limited to the above-described embodiment because various substitutions and changes are possible to those skilled in the art without departing from the technical spirit of the present invention.

As described above, the present invention combines mobile communication, near field communication, and PLC communication with power lines and electricity meters owned by a power company, and measures voltage and current of multiple transformers in real time by subscribing to one line of mobile communication. And construct an economical communication network that can read the power consumption of a large number of consumers who receive power from their transformers.

The SIU is not installed in the customer, but embedded in the electricity meter

The pulse connection cable between the disaster prevention detector and the water gas meter, such as a serial communication port and a gas leak detector, is easily connected by 2-Wire using a resistance ladder method, greatly reducing equipment cost and installation cost, and monitoring load of a transformer and a power meter. It is not only used for remote meter reading, but also secures reliability and stability in the communication network so that it can be used as disaster prevention detection and security system such as water pursuit and gas leakage detection. The leased network was used to increase revenues from utilities and prevent gas accidents among consumers using fuel gas.

Claims (3)

In the remote meter reading system of the electricity meter connected to dedicated wireless communication such as mobile communication or PLC communication, A system interface unit (SIU) that integrates meter reading, disaster prevention and security systems for electric water gas is built into the electricity meter (or detachably sealed). The SIU receives the pulse detection unit 140 from the water gas meter having a pulse output function and the amount of power transferred from the infrared interface unit 111 of the power measurement unit 110 to the infrared interface unit 122 of the main controller unit 120. Through the interrupt generation unit 129 is divided into the measured value or stored in the serial communication port unit 123 stored in the instructions storage RAM memory unit 124 and If the disaster prevention and security information divided by the interrupt generator 129 through the pulse detection unit 140 from the disaster prevention detector such as a gas leakage detector or a serial communication port unit 123 connected to a security system, etc. Stop and issue an alarm If the location of the disaster prevention detector such as a water gas meter or a gas leak detector is far from the security system or the wired connection is difficult, the wireless communication unit 150 of the SIU of the electricity meter performs data communication with the wireless communication unit of each device having an ID. Integrate the metering, disaster prevention and security information of water gas, which has a built-in SIU that performs the functions of disaster prevention and security system such as hazardous gas detection alarm. Power meter with built-in system interface unit (SIU) The method of claim 1, In the pulse generator of the device in the sealing device such as water gas meter and gas leakage detector with pulse output function, insert the resistance of multiples of binary value and bind it in parallel to 2-Wire and connect it to the electricity meter and one connection terminal. Even if the interrupt generation unit 129 can distinguish the information for each device, it is possible to detect the cheating or device abnormalities, such as disconnection short-circuit, to integrate the water gas meter reading and disaster prevention and security information processing Power Meter with SIU Installed on the secondary line of the transformer, PLC communication with the electricity meter, near field communication with the data concentrator 300, and data communication by mobile communication with the meter reading center computer. The main data concentrator 200 and the data concentrator 300 are provided with a power failure compensation circuit (including a backup battery) 216 and 315 and a power failure detection unit 214 and 313, but the voltage detection terminal is not provided separately. And PLC connection terminal When the power failure detection unit detects the power failure, it receives the power failure detection signal, replaces it with backup power through the power failure compensation circuit, and has a main data concentrator and data concentrator with a microprocessor to notify the computer of the meter center immediately. Electricity meter with built-in SIU that integrates and processes water gas meter reading and disaster prevention and security information