WO2019009501A1 - 검침 데이터 수집 시스템, 방법, 및 이를 저장한 기록 매체 - Google Patents
검침 데이터 수집 시스템, 방법, 및 이를 저장한 기록 매체 Download PDFInfo
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- WO2019009501A1 WO2019009501A1 PCT/KR2018/003740 KR2018003740W WO2019009501A1 WO 2019009501 A1 WO2019009501 A1 WO 2019009501A1 KR 2018003740 W KR2018003740 W KR 2018003740W WO 2019009501 A1 WO2019009501 A1 WO 2019009501A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/063—Details of electronic electricity meters related to remote communication
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
Definitions
- the present invention relates to a meter reading data collecting technology, and more particularly, to a meter reading data collecting system for collecting meter reading data remotely from a watt hour meter using a wired / wireless communication network, and a recording medium storing the meter reading data collecting method.
- the present invention also relates to a meter reading data collecting system and method for setting parameters to be managed by a watt-hour meter, and a recording medium storing the same.
- the DLMS / COSEM also referred to as DLMS for short
- the DLMS / COSEM is designed to ensure interoperability with the energy field (gas / water / electricity / calorie) and to accommodate various communication methods and continuous expansion structure. It is pointed out that the procedure is complicated and the overhead is large.
- the DLMS protocol is used for the electronic watt-hour meter and the DCU (Data Concentration Unit) section, but the own protocol is defined to exclude the use of the complicated DLMS protocol in the DCU and AMI (heading-end)
- the FEP Front End Processor
- the FEP protocol implemented in the DCU analyzes DLMS packets collected from an electronic watt-hour meter and extracts and merely transmits the data to be transmitted. By reducing the total data size, it is possible to reduce the cost of leasing a backhaul communication line to provide.
- PLC Power Line Communication
- ZigBee / WiSUN which is a communication method using unlicensed band
- AMI NAN Advanced Metering Infrastructure Neighborhood Area Network
- the present invention defines a power data resource management model reflecting a structure of a DLMS (Device Language Message Specification) protocol and adopts a representative state transfer (REST) structure, which is an international standard,
- DLMS Device Language Message Specification
- REST representative state transfer
- the present invention also provides a meter reading data collecting system and method capable of providing an effective interworking with a heterogeneous system and further defining a structure capable of transmitting only meter reading (i.e., power meter) data in binary form, There is another purpose in providing a recording medium.
- the present invention also provides a meter reading data collecting system and method capable of maximizing a meter reading success rate and realizing realization in a poor AMI NAN communication network by minimizing a transmission packet size, There is another purpose to provide.
- the present invention defines a power data resource management model that reflects the structure of a DLMS (Device Language Message Specification) protocol and adopts a representative state transfer (REST) structure, which is an international standard, Thereby providing a meter reading data collection system.
- DLMS Device Language Message Specification
- REST representative state transfer
- the meter reading data collection system includes:
- a data collecting means for collecting the meter reading data by performing a second communication with the communication modem, wherein the first communication or the second communication uses a protocol of REST (Representational State Transfer) structure converted through protocol conversion .
- REST Representational State Transfer
- the meter reading data collecting system may include a meter reading data managing server that performs a third communication with the data collecting means to receive and manage the meter reading data.
- the third communication uses a protocol of REST (Representational State Transfer) structure converted through protocol conversion.
- REST Representational State Transfer
- the protocol conversion may be converted from a DLMS (Device Language Message Specification) / COSEM (Companion Specification for Energy Metering) protocol to a REST structure protocol.
- DLMS Device Language Message Specification
- COSEM Companion Specification for Energy Metering
- any one of the watt hour meter, the communication modem, and the data collection unit may include a protocol conversion unit for protocol conversion.
- the protocol converter may include a confirmation module for checking whether the watt-hour meter or the modem type is a different type; Moving to a previous type of metering data data structure and network management data structure according to different type or different type, or generating another type of metering data data structure and network management data structure and transmitting the other type of metering data data structure and network management data And a generation module for mapping the structure into a REST data structure.
- the REST data structure may be managed by a URI (Uniform Resource Identifier).
- URI Uniform Resource Identifier
- the URI includes a first attribute, an OBIS (Object Identification System) code that enables identification of a watt-meter type, a protocol type, an interface class ID, a power metering data in the watt-hour meter, and parameters in the power metric data structure, And a second attribute indicating the first attribute and a second attribute indicating the second attribute.
- OBIS Object Identification System
- the method may further include a method for initializing a set value together with the first attribute, the second attribute, and the following attributes of the interface class.
- the URI includes an OID, which is a standardized management system capable of managing data access commands in a network management data structure, a communication modem type of the communication modem, a protocol type used by the communication modem, and status information of the communication modem. (Object Identifier).
- OID can be subdivided into a group OID (Object Identifier) and a distinguished OID.
- the power metering data of the power metering data structure or the network management data of the network management data structure may be generated as one binary resource and transmitted.
- the binary name includes a binary structure resource defining a format of a binary transmission packet and a binary packet resource used for actual binary transmission. .
- TLS Transport Layer Security
- DTLS Datagram TLS
- the protocol of the REST structure may be at least one of CoAP (Constrained Application Protocol), HTTP (HyperText Transfer Protocol), LWM2M (Light Weight Machine to Machine), OneM2M, and Message Queue Telemetry Transport .
- CoAP Constrained Application Protocol
- HTTP HyperText Transfer Protocol
- LWM2M Light Weight Machine to Machine
- OneM2M OneM2M
- Message Queue Telemetry Transport Message Queue Telemetry Transport .
- another embodiment of the present invention is a method for controlling a watt hour meter, comprising: (a) generating a meter reading data by a watt hour meter; (b) the communication modem performing a first communication with the watt hour meter to receive the meter reading data; And (c) collecting the meter reading data by performing a second communication with the communication modem by the data collecting means.
- a power data resource management model reflecting the structure of the international standard DLMS protocol adopted in the electronic watt hour meter and the international standard NMS (Network Management System) protocol used for the network management purpose is defined and data It is possible to use the Representational State Transfer (REST) structure, which is an international standard, for simple and efficient transmission.
- REST Representational State Transfer
- the REST structure used in CoAP Constrained Application Protocol
- HTTP HyperText Transfer Protocol
- LWM2M Light Weight Machine to Machine
- OneM2M OneM2M
- MQTT Message Queue Telemetry Transport
- FIG. 2 is a detailed configuration diagram of the communication modem shown in FIG.
- FIG. 7 is a flowchart illustrating a general DLMS-based meter reading data collection process.
- FIG. 9 is a conceptual diagram illustrating a binary transmission mode according to another embodiment of the present invention.
- FIG. 10 is a conceptual diagram showing a binary resource structure for binary transmission shown in FIG.
- 11 is a flowchart illustrating a general binary packet request process.
- the meter reading data collection system 100 includes a watt hour meter 110 for generating meter reading data, a communication modem 120 for communicating with the watt hour meter 110 to receive the meter reading data, A data receiver 140 that communicates with the data collector 130 to receive the meter reading data, a data receiver 140 that communicates with the data collector 130, And a metering data management server 150 for managing the metering data acquired through the metering data management server 150.
- the watt hour meter 110 becomes an electronic watt hour meter.
- the watt hour meter 110 includes a power amount detecting unit (not shown) for detecting a voltage and a current with respect to a power load to detect a power amount, an A / D (Analog / Digital) (Not shown), a communication unit (not shown) communicatively connected to the communication modem 120, and the like.
- the communication modem 120 is typically connected to the watt-hour meter 110 in wired communication.
- RS232, RS485, RS422, etc. may be used.
- the communication modem 120 may also be connected to the data collector 130 in a wired and / or wireless communication. That is, low-speed / high-speed PLC (Power Line Communication), ZigBee, WiSUN (Wireless Smart Utility Network), LoRa (LongRange) and NarrowBand-Internet of Things (NB-loT) can be used alone or in combination.
- the communication modem 120 performs protocol conversion. In other words, it converts the DLMS (Device Language Message Specification) / COSEM (Companion Specification for Energy Metering) protocol into a REST (Representational State Transfer) protocol.
- DLMS Device Language Message Specification
- COSEM Companion Specification for Energy Metering
- REST Real State Transfer
- the REST structure is a software structure that manages resources on the basis of a Uniform Resource Identifier (URI) and can send and receive data only by GET (read) / POST (generate) / PUT (modify) / DEL (delete) commands.
- URI Uniform Resource Identifier
- the international standards for REST architecture include Constrained Application Protocol (COAP), HyperText Transfer Protocol (HTTP), Light Weight Machine to Machine (LWM2M), OneM2M, and Message Queue Telemetry Transport (MQTT) Thereby ensuring compatibility.
- COAP Constrained Application Protocol
- HTTP HyperText Transfer Protocol
- LWM2M Light Weight Machine to Machine
- MQTT Message Queue Telemetry Transport
- the communication modem 120 performs a protocol conversion between the DLMS / COSEM protocol and the REST structure protocol protocol in order to minimize the usage period of the DLMS protocol requiring a large overhead and frequent connection procedure. That is, the communication modem 120 operates as a DLMS client and collects the meter reading data from the watt hour meter 110 operating as a DLMS server in a push or pull manner, analyzes the DLMS protocol, Data is extracted.
- the communication modem 120 operating as a REST server transmits the extracted metering data to the data collector 130 or the data receiver 140 operating as a REST client in a push or pull manner.
- various NMS (Network Management System) information generated by the communication modem 120 may be transmitted to the data collector 130 or the data receiver 140 in the manner described above.
- the data collector 130 collects meter reading data from a plurality of watt-hour meters 110 as a DCU (Data Concentration Unit). Of course, if protocol conversion is not performed in the communication modem 120, the data collector 130 can perform protocol conversion.
- DCU Data Concentration Unit
- the data receiver 140 receives the meter reading data from the data collector 130.
- the data receiver 140 may be an Advanced Metering Infrastructure (AMI) head-end.
- AMI Advanced Metering Infrastructure
- the data receiver 140 and the data collector 130 can be long distance and short distance. Accordingly, it is possible to provide an optical communication system, such as an optical fiber long term evolution (LTE) network, a public switched telephone network (PSTN), a public switched data network (PSDN), an integrated services digital network (ISDN), a broadband ISDN (BISDN) A local area network (LAN), a metropolitan area network (MAN), a wide area network (WLAN), a LAN, and the like.
- LTE optical fiber long term evolution
- PSTN public switched telephone network
- PSDN public switched data network
- ISDN integrated services digital network
- BIOSDN broadband ISDN
- LAN local area network
- MAN metropolitan area network
- WLAN wide area network
- LAN local area network
- the data collector 130 and the data receiver 140 may be grouped into data collection means.
- the communication modem 120 is illustrated as being connected to the data receiver 140 through the data collector 130, the communication modem 120 and the data receiver 140 may be directly connected.
- the communication modem 120 may be incorporated in the watt hour meter 110 and integrated.
- the meter reading data management server 150 acquires the meter reading data, converts the data into a database, calculates data processing, and provides statistics data and the like.
- the meter reading data management server 150 may be configured together with the data receiver 140 and connected to the data collector 130.
- the communication modem 120 includes a communication unit 210 connected to the power metering 110, a protocol conversion unit 240 for performing protocol conversion between a DLMS / COSEM protocol and a REST structure protocol method, A transmission / reception communication unit 230 connected to the data collector 130 through a protocol and transmitting the inspection data, and a control unit 220 controlling the components.
- the protocol conversion unit 240 may be configured as a watt-hour meter 110, a data collector 130, or a data receiver 140 depending on the situation, and performs the same function.
- the protocol conversion unit 240 may include a confirmation module 241 for confirming whether the watt-hour meter and / or the modem type is a different type (i.e., a new type), an existing type of power meter data structure and / Or a generation module 242 for moving to a new power meter data structure and / or network management data structure and converting it into a REST data structure.
- a confirmation module 241 for confirming whether the watt-hour meter and / or the modem type is a different type (i.e., a new type), an existing type of power meter data structure and /
- a generation module 242 for moving to a new power meter data structure and / or network management data structure and converting it into a REST data structure.
- FIG. 3 is a conceptual diagram of modeling for using a Representational State Transfer (REST) structure according to an embodiment of the present invention.
- the core of modeling is a data resource management model of a REST structure by maximizing the characteristics of the resource management system used in the watt-hour meter 110 and / or the communication modem 120.
- the resource management structure definition 310 reflecting the characteristics of the resource management system is composed of a metric management resource 320 and a network management resource 330.
- Data that can be generated and / or retained by the communication modem 120 can be divided into power metering data 340 and network management system (NMS) data 350.
- NMS network management system
- utility companies can operate a variety of electronic power metering types (eg G-type, E-type, Ea-type, S-type, etc.).
- the power meter data items to be generated for each type of watt-hour meter may be different from the setting parameters. Accordingly, when the worm meter type 321 is defined as the uppermost level and the protocol type 322 of the DLMS structure is used, various power metering data or parameters are generated using various interface classes (ICs) Model.
- ICs interface classes
- the IC (Interface Class) 323 is composed of an attribute 341 and a method item 342.
- the first attribute of a specific IC is always used as an Object Identification System (OBIS) code
- OBIS Object Identification System
- the following attributes are used to specify additional information such as the actual power metering value and the required unit of usage.
- the method is used to initialize the settings of the parameters you have.
- the time information of the E-type electronic watt-hour meter is modeled using a data IC using Class ID 01, and the first attribute is defined as OBIS code, ie, 6 bytes 0000010000FF (0 ⁇ FF) And the time information is stored in the second attribute.
- the REST structure modeling method proposed by the present invention is managed by a Uniform Resource Identifier (URI) of "E-type / DLMS / 01 (IC) / 0000010000FF (OBIS) / 2" It is possible to exclude both the 01 or the above two items that specify the DLMS or Interface Class ID in the URI and the above example is described for the purpose of understanding the concept and the term is not limited to the present invention.
- URI Uniform Resource Identifier
- the URI can be expressed as " watt-hour meter type / protocol type / interface class ID / first attribute / second attribute ".
- a modem type 331, an NMS protocol type 332, a group OID 333 indicating status information of the communication modem, / Off setting and the like can be classified into a classification OID 351 and the like.
- the electronic watt-hour meter adopting the DLMS structure protocol manages various power metering data and parameters by assigning an OBIS (Object Identification System) code that enables uniquely identification in the electronic watt-hour meter, ).
- OBIS Object Identification System
- NMS information 332, 333, and 351 are also managed by assigning an uniquely identifiable OID (Object Identifier).
- Data access in other systems can be easily read, created, modified and deleted through the GET / POST / PUT / DEL command.
- an ASCII-based "GET E-type / DLMS / 01 / 0000010000FF / 2" command is used.
- type / DLMS / 01 / 0000010000FF / 2 is used.
- FIG. 4 is a flowchart illustrating a process of mapping a power metering data structure according to an embodiment of the present invention to a REST structure.
- IC Interface Class
- a watt-hour meter type is confirmed by generating a metering management resource, and it is confirmed whether the watt-hour meter type is a new type (steps S410, S420, and S430).
- step S430 If it is not a new type in step S430, the process moves to the existing type (step S401).
- step S430 if it is determined that the new type is a new type, the DLMS resource is generated, and an IC (Interface Class) is checked and generated to generate an attribute and a method accordingly (S440, S450-1, S460, S461, S463, S465). This process is repeated until the final IC is generated (steps S450-n, S470, S471, S473, S475).
- IC Interface Class
- FIG. 5 is a flowchart illustrating a process of mapping a network management system (NMS) data structure according to an embodiment of the present invention to a REST structure.
- NMS network management system
- the communication modem 120 in FIG. 1 manages the number of reboots, the operation time after boot, the communication success rate, the communication failure rate, the reception sensitivity, the output intensity, the operation state, etc. according to the standardized NMS protocol.
- This standardized management scheme is called an OID (Object Identifier).
- OID indicating the status information of the communication modem is defined as 1.3.6.1.4.1.29408.1
- 1.3.6.1.4.1.29408.1 is 1.3.6.1.4.1.29408 (defined as group OID) and 1 Definition).
- &Quot GET / POST / PUT / DEL PLC-modem / NMS / 1.3.6.1.4.1 " according to the REST structure model according to an embodiment of the present invention, assuming that OID 1 is used to define on / off of the communication modem. 29408/1 "URI.
- the URI may be expressed as " command / communication modem type / protocol type / group OID / division OID ".
- the PLC modem is one of the available communication modem types, and can use various communication modems such as WiSUN, ZigBEE, and the like.
- Data access in other systems can be easily read, created, modified and deleted through the GET / POST / PUT / DEL command.
- the ASCII-based "GET PLC-modem / NMS / 1.3.6.1.4.1.29408 / 1" command is used.
- the corresponding resource can be accessed through the command "GET PLC-modem / NMS / 1.3.6.1.4.1.29408 / 1". If you want to turn off the PLC modem operation, you can stop the operation in the same way as "PUT PLC-modem / NMS / 1.3.6.1.4.1.29408 / 1 off”.
- a network management resource is generated and a communication modem type is confirmed and it is confirmed whether the communication modem type is a new type (steps S510, S520, S530).
- step S530 If it is not a new type in step S530, the process moves to an existing type (step S501).
- step S530 if it is determined as a new type, an NMS (Network Management System) resource is created, and a group OID is checked and generated accordingly. This process is repeated while generating the last group OID (step S550-n, S570).
- NMS Network Management System
- REST uses Transport Layer Security (TLS) when using TCP (Transmission Control Protocol), and Datagram TLS (DTLS) when UDP (User Datagram Protocol) is used.
- TLS Transport Layer Security
- DTLS Datagram TLS
- UDP User Datagram Protocol
- CoAP Constructed Application Protocol
- HTTP HyperText Transfer Protocol
- LWM2M Light Weight Machine to Machine
- OneM2M OneM2M
- Message Queue Telemetry Transport can be used as it is.
- FIG. 6 is a conceptual diagram illustrating a REST-based connection structure according to an embodiment of the present invention.
- the REST data management model 610 is mapped to the DLMS-OBIS data structure 620 and the NMS-OID data structure 630, and this REST data management model 610 includes an automatic meter reading system 640 ), A modem management system 650, a power IoT (Internet Of Things) system 660, and the like.
- IoT Internet Of Things
- REST has described the mapping procedure to the REST structure to ensure compatibility with other systems.
- the REST method uses a server-client method like DLMS as a basis, a plurality of sending and receiving (request and response procedures) procedures are required.
- REST has relatively lightweight header and control fields compared to DLMS, it is difficult to reduce data size drastically due to multiple sending and receiving procedures.
- another embodiment of the present invention further proposes a technique of generating only one resource by binarizing only the power metering data, and acquiring necessary power metering data or network management data through the corresponding resource at a time.
- An example of a DLMS communication log using HDLC (High-Level Data Link Control) through such binarization is as follows.
- Request - GetRequest (effective amount of electricity accumulated in previous month)
- FIG. 7 is a flowchart illustrating a general DLMS-based meter reading data collection process.
- the DLMS collection procedure includes a data link layer connection and a set normal response mode (SNRM) and a uniform layer packet (UA) packet application layer connection (AARQ) And an Application Association Response (AARE) packet).
- SNRM normal response mode
- U uniform layer packet
- AARQ application layer connection
- AARE Application Association Response
- FIG. 8 is a flowchart illustrating a REST-based meter reading data collecting process according to an embodiment of the present invention.
- the REST-based meter reading data collection procedure can collect meter reading data or directly set parameters, the procedure is relatively simple as compared with the DLMS.
- data collector 130 operates as a REST client
- communication modem 120 operates as a REST server.
- the packet (frame) structure of each scheme is excluded here, the packet structure of the DLMS protocol using the HDLC in the case of FIG. 7 relatively has a large overhead compared to the data to be transmitted. 7 and 8, only the pull structure is described, but a push structure is also applicable.
- FIG. 9 is a conceptual diagram illustrating a binary transmission mode according to another embodiment of the present invention.
- the communication modem 120 serving as the REST server can transmit inappropriate data other than the meter reading item previously consulted with the data collector 130 operating as the REST client in advance or when the order of the meter item is changed.
- the binary structure resource may be additionally managed in an embodiment of the present invention.
- FIG. 10 is a conceptual diagram showing a binary resource structure for binary transmission shown in FIG.
- a new resource management structure definition 1010 is created by adding a binary resource structure 1040 to the resource management structure definition 310 shown in FIG.
- a binary resource (resource) 1041 is added before requesting the corresponding data, and the URI is divided into a binary name (name) 1042 below.
- the binary name 1042 is composed of a binary structure resource 1043 that defines the format of the binary transmission packet and a binary packet resource 1045 that is used for the actual binary transmission.
- a meter reading server operating as a REST client requires a binary LP (Load Profile), active power, and reactive power in an E-type watt-hour meter.
- the binary name is defined as MeteringData01 for the sake of convenience.
- the data collector 130 serving as the REST client acquires and manages the format and structure information of the corresponding binary packet through the "GET E-type / MeteringData01 / BinaryStructure” command. Then, whenever necessary, acquire the corresponding data (LP, active power, reactive power) through the "GET E-type / MeteringData01 / BinaryPacket" command.
- FIG. 11 is a flowchart illustrating a general binary packet request process.
- the data collector 130 serving as a REST client requests a binary LP (Load Profile), active power, and reactive power. If there is no corresponding binary name (MeteringData01) (steps S1110 and S1120), the data collector 130 requests the newly requested binary name, the lower resource, and the like, in response to the "GET E-type / MeteringData01 / BinaryStructure" (Steps S1150 and S1130).
- the POST (create) command creates a newly requested binary name and a subordinate resource, which can be represented by program coding as follows.
- step S1120 if the corresponding binary name is found in step S1120, a binary packet is requested and the received binary packet is interpreted according to the request and is stored in the database (steps S1130 and S1140).
- FIG. 12 is a flowchart illustrating a binary packet request process according to another embodiment of the present invention.
- the communication modem 120 acting as the REST server, accepts the binary name and transmits the binary structure And allocates and provides packet packets.
- the PUT command is used (steps S1210 and S1220).
- the expression of the binary structure resource uses a standardized method of TLV (Type Length Value) format defined by data type, length and value.
- the format of the corresponding binary packet is changed through the "GET E-type / MeteringData02 / BinaryStructure” GET E-type / MeteringData02 / BinaryPacket "command every time the corresponding data is needed after the structure information is acquired (steps S1230, S1240, S1250, S1260).
- FIG. 13 is a block diagram of a meter reading data collection system 100 showing inter-protocol conversion according to another embodiment of the present invention.
- the conversion between the DLMS / COSEM and the REST protocol is performed in a watt-hour meter.
- the above case is the case where the communication modem 120 including the protocol conversion unit is built in the watt hour meter 110 or the protocol conversion unit is included in the watt hour meter 110.
- FIG. 14 is a block diagram of a meter reading data collection system 100 showing inter-protocol conversion according to another embodiment of the present invention. Referring to FIG. 14, a conversion between the DLMS / COSEM and the REST protocol is performed in the data collector 130.
- FIG. 15 to 17 are diagrams illustrating a push-based data collection procedure according to an embodiment of the present invention.
- FIG. 15 illustrates a push-based data collection procedure using the DLMS method
- FIG. 16 illustrates a push-based data collection procedure using the REST method
- FIG. 17 illustrates a push- Fig.
- Figs. 15 to 17 show a data collection procedure using a push method.
- the Server-Client model supports most push functions capable of providing real-time property, it can support the collecting procedure as shown in FIG. 15 to FIG. Compared with the existing pull method, the collection procedure can be simplified and the real time property can be improved.
- the meter reading data collection according to the present invention can be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer readable medium.
- the computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination.
- the program instructions recorded on the medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software.
- the medium may be a transmission medium such as an optical or metal line, a wave guide, or the like, including a carrier wave for transmitting a signal designating a program command, a data structure, or the like.
- Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.
- the hardware devices described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.
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- 검침 데이터를 생성하는 전력량계;상기 전력량계와 제 1 통신을 수행하여 상기 검침 데이터를 수신하는 통신 모뎀; 및상기 통신 모뎀과 제 2 통신을 수행하여 상기 검침 데이터를 수집하는 데이터 수집 수단;을 포함하며,상기 제 1 통신 또는 제 2 통신은 프로토콜 변환을 통해 변환된 REST(Representational State Transfer) 구조의 프로토콜을 이용하는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 1 항에 있어서,상기 데이터 수집 수단과 제 3 통신을 수행하여 상기 검침 데이터를 수신하여 관리하는 검침 데이터 관리 서버;를 포함하는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 2 항에 있어서,상기 제 1 통신 또는 제 2 통신이 프로토콜 변환을 하지 않으면, 상기 제 3 통신은 프로토콜 변환을 통해 변환된 REST(Representational State Transfer) 구조의 프로토콜을 이용하는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 1 항에 있어서,상기 프로토콜 변환은 DLMS(Device Language Message Specification) /COSEM(Companion Specification for Energy Metering) 프로토콜로부터 상기 REST 구조의 프로토콜로의 변환인 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 1 항에 있어서,상기 전력량계, 통신 모뎀 및 데이터 수집 수단 중 어느 하나는 프로토콜 변환을 위한 프로토콜 변환부를 포함하며, 상기 프로토콜 변환부는 전력량계 또는 모뎀 타입이 다른 타입인지를 확인하는 확인 모듈; 다른 타입 여부에 따라 이전 타입의 전력계량 데이터 자료 구조 및 망 관리 데이터 구조로 이동하거나 다른 타입의 전력계량 데이터 자료 구조 및 망 관리 데이터 구조를 생성하고 상기 다른 타입의 전력계량 데이터 자료 구조 및 망 관리 데이터 구조를 REST 자료 구조로 맵핑하는 생성 모듈;을 포함하는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 5 항에 있어서,상기 REST 자료 구조는 URI(Uniform Resource Identifier)로 관리되는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 6 항에 있어서,상기 URI는 전력계량 데이터 구조에서 전력량계 타입, 프로토콜 타입, 인터페이스 클래스 아이디, 전력량계내에서 전력계량 데이터 및 파라미터들에 대해 식별을 가능하게 하는 OBIS(Object Identification System) 코드인 제1속성, 부가 정보들을 나타내는 제2속성 및 이하 속성들로 표시되는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 7 항에 있어서,상기 인터페이스 클래스 아이디는 상기 제1속성, 제2속성 및 이하 속성들과 함께 설정값을 초기화하는 메쏘드를 포함하는 것을 특징으로 하는 점검 데이터 수집 시스템.
- 제 6 항에 있어서,상기 URI는 망 관리 데이터 구조에서 데이터 접근을 위한 명령어, 상기 통신 모뎀의 통신모뎀 타입, 상기 통신 모델이 사용하는 프로토콜 타입, 상기 통신 모뎀의 상태정보를 관리할 수 있는 표준화된 관리체계인 OID(Object Identifier)로 표시되는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 5 항에 있어서,상기 전력계량 데이터 자료 구조의 전력계량 데이터 또는 망 관리 데이터 구조의 망 관리 데이터는 바이너리 형태로 하나의 바이너리 자원으로 생성되어 전송되는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 10 항에 있어서,상기 하나의 자원 바이너리 자원으로서 하위에 바이너리 네임을 포함하며, 상기 바이너리 네임은 바이너리 전송패킷의 포맷을 정의하는 바이너리 구조 자원(structure resource) 및 실제 바이너리 전송에 사용되는 바이너리 패킷 자원(resource)을 포함하는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 11 항에 있어서,상기 바이너리 구조 자원은 데이터 타입, 길이 및 값으로 정의하는 TLV(Type Length Value) 형식의 방식을 이용하여 표현되는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 1 항에 있어서,상기 REST 구조의 프로토콜에서 TCP(Transmission Control Protocol) 방식이 사용되면 TLS(Transport Layer Security) 보안기법이 적용되고, UDP(User Datagram Protocol)이 사용되면 DTLS (Datagram TLS) 보안기법이 적용되는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 1 항에 있어서,상기 REST 구조의 프로토콜은 CoAP(Constrained Application Protocol), HTTP(HyperText Transfer Protocol), LWM2M(Light Weight Machine to Machine), OneM2M, MQTT(Message Queue Telemetry Transport) 중 적어도 어느 하나를 이용하는 것을 특징으로 하는 검침 데이터 수집 시스템.
- 제 9 항에 있어서,상기 OID는 통신 모뎀의 상태 정보를 표시하는 그룹 OID 및 상기 통신 모뎀의 온오프 설정을 세분화하는 구분 OID를 포함하는 것을 특징으로 하는 검침 데이터 수집 시스템.
- (a)전력량계가 검침 데이터를 생성하는 단계;(b) 통신 모뎀이 상기 전력량계와 제 1 통신을 수행하여 상기 검침 데이터를 수신하는 단계; 및(c) 데이터 수집 수단이 상기 통신 모뎀과 제 2 통신을 수행하여 상기 검침 데이터를 수집하는 단계;를 포함하며,상기 제 1 통신 또는 제 2 통신은 프로토콜 변환을 통해 변환된 REST(Representational State Transfer) 구조의 프로토콜을 이용하는 것을 특징으로 하는 검침 데이터 수집 방법.
- 제 16 항에 있어서,(d) 검침 데이터 관리 서버가 상기 데이터 수집 수단과 제 3 통신을 수행하여 상기 검침 데이터를 수신하여 관리하는 단계;를 포함하는 것을 특징으로 하는 검침 데이터 수집 방법.
- 제 17 항에 있어서,상기 제 1 통신 또는 제 2 통신이 프로토콜 변환을 하지 않으면, 상기 제 3 통신은 프로토콜 변환을 통해 변환된 REST(Representational State Transfer) 구조의 프로토콜을 이용하여 이루어지는 것을 특징으로 하는 검침 데이터 수집 방법.
- 제 16 항에 있어서,상기 전력량계, 통신 모뎀 및 데이터 수집 수단 중 어느 하나는 프로토콜 변환을 위한 프로토콜 변환부를 포함하며,상기 프로토콜 변환부는 전력량계 또는 모뎀 타입이 다른 타입인지를 확인하는 확인 모듈; 다른 타입 여부에 따라 이전 타입의 전력계량 데이터 자료 구조 및 망 관리 데이터 구조로 이동하거나 다른 타입의 전력계량 데이터 자료 구조 및 망 관리 데이터 구조를 생성하고 상기 다른 타입의 전력계량 데이터 자료 구조 및 망 관리 데이터 구조를 REST 자료 구조로 맵핑하는 생성 모듈;을 포함하는 것을 특징으로 하는 검침 데이터 수집 방법.
- 제 16 항에 따른 검침 데이터 수집 방법을 수행하기 위하여 디지털 처리 장치에 의해 실행될 수 있는 명령어들의 프로그램이 유형적으로 구현되어 있으며, 상기 디지털 처리 장치에 의해 판독될 수 있는 프로그램이 기록된 기록매체.
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| CN116708514A (zh) * | 2023-08-02 | 2023-09-05 | 深圳龙电华鑫控股集团股份有限公司 | 一种基于物联网的电能表数据采集方法及系统 |
| CN116708514B (zh) * | 2023-08-02 | 2023-10-31 | 深圳龙电华鑫控股集团股份有限公司 | 一种基于物联网的电能表数据采集方法及系统 |
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| Publication number | Publication date |
|---|---|
| KR101999314B1 (ko) | 2019-07-12 |
| GB2568436B (en) | 2022-04-13 |
| CN109791727B (zh) | 2021-08-06 |
| KR20190005469A (ko) | 2019-01-16 |
| GB201903759D0 (en) | 2019-05-01 |
| CN109791727A (zh) | 2019-05-21 |
| GB2568436A (en) | 2019-05-15 |
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