KR101438528B1 - Method for RFID-based CO2 emissions allocation in third-party logistics industry, and System thereof - Google Patents

Abstract

The present invention relates to a method for distributing carbon dioxide generation amount per shipper, comprising the steps of: receiving information on an electronic product code (EPC) of an object loaded on a transportation vehicle; receiving transportation information of the transportation vehicle; And distributing the generated carbon dioxide amount of the transportation vehicle by the shippers using the information about the EPC, wherein the EPC is the unique identification information of the object, and the EPC of the object loaded on the transportation vehicle It is possible to distribute carbon dioxide emissions to the shippers reasonably.

Description

[0001] The present invention relates to a method and system for distributing CO2 generated by a RFID-based shipment in a third party logistics environment,

The present invention relates to a method for rationally distributing the amount of carbon dioxide generated as a logistics activity to a shipper in a third party logistics environment in which joint transportation is performed in preparation for carbon tax introduction, and more particularly, The present invention relates to a method and system for distributing the amount of carbon dioxide to a shipper at a weight ratio by referring to the weight of the cargo in the EPCglobal network, which is a standard RFID system in the distribution / logistics field.

The main cause of global warming is the contribution of carbon dioxide, a greenhouse gas in the atmosphere, to about 90% of the total. Meanwhile, the transportation sector uses 33.4% of global energy consumption, of which about 98% depend on fossil fuels such as gasoline and diesel, and carbon dioxide emissions from automobile traffic account for about 25% of global emissions. In addition, since 10 to 18% of car traffic is occupied by cargo, the logistics sector can not be an exception in reducing CO2 emissions, and it is urgent to switch to the so-called "Green Logistics" system, which converts to an energy efficient and economical system .

In order to reduce carbon dioxide emissions, reduction activities themselves are important, but it is necessary to understand the present level through calculation of carbon dioxide emissions, and to set a reduction management target based on the understanding of the current level. Until now, in the case of third-party logistics environment, many companies are involved in a complex contractual relationship, and there is no way to objectively present the consignee company's CO2 emissions and reduction targets in the logistics process. Even the reduction targets could not be reasonably established. In Europe, major industrialized countries are introducing environmental taxes such as carbon tax, sulfur tax and energy tax. In order to distribute the fair environmental taxes of logistics companies and shippers, it is important to measure CO2 emissions by shippers correctly.

Some logistics companies and shippers take the CO2 emission cost of shippers as part of their transportation costs when they sign contracts for transportation. Logistics companies can change the loading rate of trucks or vessels in each transportation situation in order to increase the loading rate and reduce the tolerance rate. Due to the congestion and other factors, the transportation route and the transportation time may vary from one transportation situation to another. In such an environment where the transportation situation may be different each time, the method of estimating the carbon dioxide emission cost in advance and promising the payment is not reasonable for both the logistics company and the shippers. After a transaction is made between the logistics company and the shippers, the shippers will have to distribute the costs as a result of the logistics activities.

A first problem to be solved by the present invention is to provide a carbon dioxide emission distribution method for distributing CO2 emissions to a shipper rationally using EPC of an object loaded on a transportation vehicle.

A second problem to be solved by the present invention is to provide a carbon dioxide emission amount distribution system for distributing carbon dioxide to a shipper rationally using EPC of an object loaded on a transportation vehicle.

It is another object of the present invention to provide a computer-readable recording medium storing a program for causing a computer to execute the above-described method.

In order to accomplish the first object of the present invention, there is provided a method for distributing carbon dioxide generated by a shipper, comprising the steps of: receiving information on an electronic product code (EPC) of an object loaded on a transportation vehicle; Receiving transportation information of the transportation vehicle; And distributing the amount of carbon dioxide in the transportation vehicle calculated from the transportation information by the shippers using the information about the EPC, wherein the EPC is unique identification information of the object.

According to an embodiment of the present invention, the step of receiving information on the EPC includes: determining an object information server to be searched first among the object information servers storing the root EPC which is the EPC of the transportation vehicle; Searching all the child EPCs associated with the root EPC in the object information server to search for EPCs of all objects loaded on the transportation vehicle; And receiving information about the searched EPC, wherein the object information server stores an association event according to an EPC of objects in a specific section and a connection with another object of the object, Lt; / RTI >

According to an embodiment of the present invention, the step of searching an EPC of all objects loaded on the transportation vehicle includes reading the most recent combination event including the root EPC as a parent EPC and ahead of the specific time point; And searching for all child EPCs associated with the root EPC if the read binding event is present and the type of the binding event is not a unjoining, And searching for the child EPC, and if the type of the combining event is the decoupling, determining all the retrieved child EPCs as EPCs of all objects loaded on the transportation vehicle, If the binding event is not read, repeating the step of reading the binding event from the object information server before the object information server to the step of searching the child EPC.

In order to achieve the second object, the present invention provides an EPC master data server for storing information on an EPC input from a shipper, the EPC master data server comprising: An object information server for storing the EPC of the object by reading the RFID tag of the object when loading or dropping the object as a shippers to be transported in the transportation vehicle; An operation database server storing transportation information of the transportation vehicle; And receiving the EPC of the object loaded on the transportation vehicle from the object information server, receiving the information on the received EPC from the EPC master data server, receiving the transportation information of the transportation vehicle from the operation database server And a carbon dioxide generation amount distribution server that distributes the carbon dioxide generation amount of the transportation vehicle by the EPC to the shippers.

According to another aspect of the present invention, there is provided a computer-readable recording medium having recorded thereon a program for causing a computer to execute the method for distributing the amount of generated carbon dioxide by the shippers.

According to the present invention, since it is possible to clearly identify the transportation distance, the fuel consumption amount, the cargo weight per cargo, the tolerance, and the car shipped by each section, a carbon tax payment entity is selected for each transportation situation, Can be distributed. In addition, it is possible to establish a system for continuously setting up reduction targets by collectively diagnosing and assessing them through objective indicators, thus supporting low carbon green growth through carbon dioxide reduction. Furthermore, building standards-based systems can reduce system integration and implementation costs, which can reduce system complexity within and between companies, enabling companies to share information and collaborate with their partners.

1 is a block diagram of a system for distributing carbon dioxide emissions per shipment according to an embodiment of the present invention.
FIG. 2 illustrates the principle of distribution of carbon dioxide emission amount per shipper according to an embodiment of the present invention.
FIG. 3 illustrates an association relationship between EPCs of objects of a transportation vehicle according to an embodiment of the present invention.
FIG. 4 illustrates a carbon dioxide emission distribution system according to an embodiment of the present invention.
FIG. 5 is a flowchart of a carbon dioxide emission distribution method according to an embodiment of the present invention.
FIG. 6 is a flowchart of a method for receiving information on an EPC in a carbon dioxide emission amount distribution method according to an embodiment of the present invention.
FIG. 7 is a flowchart of a method for searching EPCs of all objects in a method for distributing carbon dioxide according to an embodiment of the present invention.
FIG. 8 is a flowchart of a method for distributing the amount of generated carbon dioxide of a transportation vehicle by shippers in the method of distributing carbon dioxide according to an embodiment of the present invention.
9 is an overall flowchart of a method for searching an EPC of all objects loaded on a transit vehicle according to an embodiment of the present invention.
10 is an overall flow diagram of a method for searching for EPCs of all objects loaded on a transit vehicle in case the input EPC according to an embodiment of the present invention is not clear whether it is a root EPC.

Prior to the description of the concrete contents of the present invention, for the sake of understanding, the outline of the solution of the problem to be solved by the present invention or the core of the technical idea is first given.

According to an embodiment of the present invention, there is provided a method for distributing CO2 emission amount per shipper, comprising the steps of: receiving information on an electronic product code (EPC) of an object loaded on a transportation vehicle; receiving transportation information of the transportation vehicle; And distributing carbon dioxide amount of the transportation vehicle calculated from the transportation information to the shippers by using information on the EPC, wherein the EPC is unique identification information of the object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art, however, that these examples are provided to further illustrate the present invention, and the scope of the present invention is not limited thereto.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: It is to be noted that components are denoted by the same reference numerals even though they are shown in different drawings, and components of different drawings can be cited when necessary in describing the drawings. In the following detailed description of the principles of operation of the preferred embodiments of the present invention, it is to be understood that the present invention is not limited to the details of the known functions and configurations, and other matters may be unnecessarily obscured, A detailed description thereof will be omitted.

1 is a block diagram of a system for distributing carbon dioxide emissions per shipment according to an embodiment of the present invention.

The CO2 emission distribution system 100 according to an embodiment of the present invention includes a carbon dioxide generation amount distribution server 110, an object information server 120, an EPC master base server 130, and a travel database server 140 . To distribute CO2 emissions by shippers based on objective and precise criteria, we use the Electronic Product Code (EPC) of the objects loaded on the transport vehicle.

Here, the EPC is a unique identification information of an object, and is a code that enables identification by assigning a unique serial number to an object or service existing physically or virtually. The EPC is a metacoding system designed to support various industries. Ensures compatibility with existing systems.

The information about the EPC is registered by a provider that attaches the EPC to the object. The information on the EPC in the logistics environment may be information registered by each shipper including at least one of name, type, weight, manufacturer, or production date for each object. Since the information on the EPC is information on the object, it may include various information as needed.

The object information server (EPCIS) is a server that stores a binding event according to whether an object is coupled to an EPC of a specific section and another object of the object. Stores the EPC through the reading of the RFID tag, generates the state and tracking information of the object corresponding to the EPC, stores the state and the tracking information in the local storage, collects the EPC information, and shares the EPC with other servers. The object information servers are individually installed in individual business sites and are designed as distributed systems. That is, it can be implemented in a form of responsible management of event data for EPCs occurring at each business site or a specific section.

The carbon dioxide generation amount distribution server 110 receives the EPC of the object loaded in the transportation vehicle from the object information server 120, receives the information about the received EPC from the EPC master data server 130, The control unit 140 receives the transportation information of the transportation vehicle and distributes the amount of carbon dioxide generated by the transportation vehicle to each shipment using the EPC.

More specifically, the carbon dioxide generation amount distribution server 110 receives the transportation information of the transportation vehicle from the operation database server 140 and calculates the amount of carbon dioxide generated in the transportation vehicle. The transportation information received in order to calculate the amount of carbon dioxide emission of the transportation vehicle may include at least one of fuel consumption amount, carbon dioxide emission coefficient of fuel, transportation distance, or fuel consumption. The operation database server 140 can receive the transportation distance according to the position data of the transportation vehicle from the position information system and receive the fuel consumption amount of the transportation vehicle from the transportation vehicle terminal. There are various methods for calculating the amount of carbon dioxide generated using the transportation information of the received transportation vehicle. First, the carbon dioxide emission amount can be calculated using the fuel method as shown in the following equation (1).

[Equation 1]

Carbon Dioxide Emission (Kg) = Fuel Consumption x Carbon Dioxide Emission Factor

The carbon dioxide emission factor is a coefficient indicating the amount of carbon dioxide emission per unit of fuel consumption, and is almost constant for each type of fuel. In case of railroad, it can be calculated by using electricity consumption, and the electricity emission factor changes every year.

If it is difficult to measure the exact amount of fuel, CO2 emission can be calculated by substituting the annual method, ton-kilometer method, and the fare method. Of these, the fuel consumption estimation method can be used when the indication such as transportation distance by vehicle can not be clearly distinguished. Further, the carbon dioxide emission amount can be calculated using the authorized fuel consumption and can be calculated as the following Equation (2).

&Quot; (2) "

Carbon dioxide emission (KgCO2) = (transportation distance ÷ fuel consumption) × CO2 emission factor

The tonne kilometer method can be used when the same method is required to maintain the consistency of the calculation of the environmental load and the performance index in the case of a company being used as a performance index based on the weight and distance of the product. When calculating the carbon dioxide emission amount, the formula for calculating the carbon dioxide emission amount as a ratio of the weight to the distance can be calculated by the following equation (3).

&Quot; (3) "

Carbon Dioxide Emission (KgCO2) = (Carriage Weight × Carriage Distance) × Carbon Dioxide Emission Unit

Finally, the fare method is calculated based on the incurred charge. In the case of the shippers, it is difficult to grasp the fuel consumption because the fuel is not purchased. In some cases, the key data can not be obtained from the logistics provider. At this time, it is possible to estimate the mileage and the fuel consumption based on the transportation charge, which is called the charge method, and can be calculated as shown in Equation (4).

&Quot; (4) "

Carbon Dioxide Emission (KgCO2) = Carriage Rate × CO2 Emission Unit

The carbon dioxide generation amount distribution server 110 distributes the carbon dioxide generation amount calculated for each transportation section in order to distribute the calculated carbon dioxide emission amount of each of the transportation vehicles by the shippers from the transportation section to the weight ratio of the cargoes by the shippers.

A distribution model for distributing the generated amount of carbon dioxide for each shipper will be described with reference to FIG. When the transportation vehicle 210 transports the cargoes 240 and 250, the carbon dioxide generation amount 220 is calculated for each transportation section 230. The cargo in the transportation vehicle 210 is loaded with the cargo 240 and the cargo 250 of Company A and the amount of carbon dioxide generated in accordance with the cargo 240 and the company cargo 250 of Company A 220). The weight of the cargo 240 of the company A is 4 tons and the weight of the cargo 240 of the company B which is the weight of the cargo 240 of the company B among the 100 tons of the total cargo weight (4 tons + 6 tons) Ton, that is, 4 to 6, the amount of generated carbon dioxide (220). Therefore, 40KgCO2 can be distributed to Company A, and 60KgCO2 can be distributed to Company B. Further, the total amount of carbon dioxide generated by the shippers in all the sections can be calculated as shown in the following equation (5).

&Quot; (5) "

As described above, if the amount of carbon dioxide generated in the transportation vehicle and the weight ratio of the objects loaded on the transportation vehicle can be known, the amount of carbon dioxide generated per shipper can be accurately distributed. For this purpose, the weight ratio by shipper should be calculated accurately. When the information received from the shippers is used for the weight per shippers, the weight of the cargo loaded on the corresponding transportation vehicle can not be known accurately. Therefore, the EPC is used to calculate the objective weight per shippers.

First, the EPC of the object loaded on the transportation vehicle is received from the object information server 120. The EPC of all objects loaded on the transportation vehicle must be retrieved and received from the object information server 120 that manages a specific transportation section. The object information server 120 in the logistics environment manages an EPC in a section in which a vehicle is loaded and unloaded in a specific section. When the objects are loaded or unloaded from the transportation vehicle, the EPC And stores the EPC of the objects.

Wherein the EPC of the object loaded on the transportation vehicle determines and determines the root EPC of the object and searches the object information server for all child EPCs associated with the root EPC, , And a child EPC, and the child EPC can search using a combination event and a type of the combination event. The object information server 120 stores an association event according to whether an object in a specific section is combined with an EPC and another object of the object. The combination event may include a combination in which an object combines with another object, and a combination disassembly that disassociates with another object.

The coupling relationship of the objects loaded on the transportation vehicle will be described with reference to Fig. The EPC of the object 320 stored in the object information server 310 is coupled to a plurality of pallets 330 loaded on the truck, The pallet 330 may include a plurality of boxes 340 therein, and the pallet 330 may be coupled to the box 340. In addition, each box 340 may include items therein. The minimum unit of the EPC is the minimum unit to which the shippers assign the EPC, and the shipment is usually packaged in the box 340, and the minimum EPC unit in the shipment environment will be box 340. And uses the coupling relationship between the EPCs stored in the object information server 120 to search all the EPCs of the transportation vehicle.

In order to search all the EPCs of the transportation vehicle, the EPC for the truck, which is the highest unit of the transportation vehicle, must be determined. Each EPC may be classified into a parent EPC and a child EPC depending on whether the association relationship of the EPC is included. The parent EPC is an EPC of an object including the other object when one object is included in another object, and the child EPC is an EPC of an object included in the other object. The root EPC is also called the root EPC. Wherein the highest EPC is the EPC of the transportation vehicle. In order to search all the EPCs of the transportation vehicle, it searches all the child EPCs using the combining event from the route EPC, which is the EPC of the transportation vehicle.

In order to search all the EPCs of the transportation vehicle, the object information server 120 storing the EPC coupling relation of the transportation vehicle should be determined. The cargo may be transported by one transportation vehicle in the transportation process in which the cargo is transported, but may be separately loaded into different transportation vehicles depending on the transportation situation, or the cargoes which are separately transported may be transported in one transportation vehicle Lt; / RTI > In other words, if the cargo of each shipper is delivered to the central distribution center (CDC), the logistics provider can classify the cargo and deliver it to the regional distribution center (RDC) It can be shipped to each destination after sorting. In addition, since the object information server 120 storing EPC is different for each transportation route and transportation section, the object information server 120 can search from the object information server 120 which is highly likely to receive the corresponding EPC. The object information server to be searched first receives the object information servers storing the root EPC which is the EPC of the transportation vehicle and transmits the object information server including the latest loading time or loading time preceding the specific time point of the root EPC to the object information server Wherein the loading time is a time when the object corresponding to the EPC is loaded on the transportation vehicle and the loading time is a time when the object is loaded from the transportation vehicle have. An object information server 120 that calculates the amount of carbon dioxide generated and stores the latest loading time or loading time preceding a specific time point corresponding to a transportation section to be distributed among the object information servers 120 storing the root EPC, Object information server. The object information server storing the root EPC may be plural according to the transportation route. The cargo is not loaded or loaded in the transportation section and the object information server 120 including the information immediately before the transportation section for distributing the carbon dioxide generation amount is first searched. The object information server 120 searches for all child EPCs that are associated with the root EPC. The child EPC determines whether there is a binding event associated with the child EPC of the current EPC until a binding event associated with the child EPC exists and the type of the binding event is found to be an unlinked EPC, It is repeatedly searched whether or not it is released. The root EPC is associated with one or more child EPCs. Thus, the child EPC is an EPC where there is a join relationship event and the join relationship event is not a join release. And searches for all EPCs determined to be the child EPCs. When the association event is disassociated, the association between the EPCs is released, and the child EPC is not loaded on the transportation vehicle in the transportation section, and the child EPC is excluded. After all the child EPCs of the root EPC are found, the child EPCs of the child EPCs are searched. It searches all the EPCs loaded on the transportation vehicle and repeats the search for the child EPCs until the combination event associated with the child EPC exists and the type of the combining event is found to be the decoupled. If there is no binding event, it means that the child EPC associated with the EPC is unknown. In the object information server currently being searched, the child EPC is not known and the child EPC is searched in the object information server before the object information server currently being searched. If the combining event can not be read even if all the previous object information servers are continuously searched for the EPC in which the combining event does not exist, the EPC stops the child EPC search because it is shipped itself without the child EPC . A method of searching for the child EPC will be described in detail in FIG.

As described above, as a result of searching all the child EPCs associated with the root EPC, the EPC of all the objects loaded on the transportation vehicle can be grasped, and the carbon dioxide generation amount distribution server 110 can calculate the EPC of all the objects And receives it from the object information server 120.

Since the weight information and the like are not stored in the EPC received from the object information server 120, information about the EPCs should be received from the EPC master base server 130. The EPC master base server 130 stores information on the EPC inputted from the shipper. The information on the EPC may be information registered by each of the shippers including at least one of a name, a type, a weight, a manufacturer, and a production date for each object. The shippers attach the RFID tag storing the EPC to the cargo to be transported and register the information on the EPC of the cargo in the EPC master base server 130 to share information about the EPC.

The EPCglobal network can be used as a network sharing the information of the EPC. The EPCglobal network is a network of all service providers and subscribers using services specified in the framework. In other words, it is a network system that can automatically inquire objects by using RFID technology and share product information, history information, and moving status by sharing recognized object information through the Internet. The EPCglobal network is basically a network using EPC, and uses a tag and a reader to collect information using the EPC. Here, the tag refers to a non-contact type RFID tag, and includes a memory capable of storing EPC. A reader is a device that allows a software application to read or write data from an RFID tag, which reads the EPC from the tag and reports the read EPC to the application. Middleware is used as an apparatus for filtering and grouping data from the reader that recognizes the RFID tag and transmitting it to an application (i.e., EPCIS). The object information server (EPCIS) is a component that acts as a gateway in the EPCglobal network. The object information server (EPCIS) receives tag event information from a middleware having an ALE (Application Level Events) standard interface, And serves as a hub for gathering information on a given EPC through such information management. In addition, EPCIS plays a role of sharing object information in order to provide visibility and traceability of objects among business partners. These EPCIS are individually installed in individual workplaces and designed as distributed systems. In other words, it is implemented in the form of responsible management of event data about EPC that occurs in each workplace. The ONS (Object Naming Service) provides a global search service. It provides one or more URIs associated with the EPC and derives additional information from the provided URI. The provided URI indicates a product master data server, EPCIS, DS, etc., from which additional information (product name, manufacturing date) of a specific EPC can be obtained. The DS (Discovery Service) is a service for providing information for EPC tracking. DS is a component of the standards in development that is currently being discussed at the concept level and provides information for tracking objects in the EPCglobal network.

From the EPC master base server 130 and the object information server 120 implemented by the EPCglobal network, the carbon dioxide generation amount distribution server 110 can receive information on the EPC and the EPC of all the objects loaded on the transportation vehicle have.

A method of searching EPCs of all objects loaded on the transportation vehicle using the EPCglobal network can be expressed as shown in Table 1 below.

The query of Table 1 proceeds by searching the root EPC of the input EPC using a recursive call and searching all the child EPCs of the root EPC to construct a tree. If the top-level parent EPC of the EPC to be sought is not clear, such as the EPC of the transportation vehicle, a process may be required to find the root EPC.

First, it returns the DS address (dsAddress) related to the destination EPC to the ONS, and returns the object information server (EPCIS) information related to the destination EPC, that is, the DSEventList, to the corresponding DS (line 1-2). Second, to find the root EPC, the object information server (EPCIS) to be inquired first is determined. (DSE) object information server (EPCIS) address (DSE) of the DSEvent (DSE) of the returned DSEventList that contains the load time or load time of the closest time that is less than the specified time (dateTime) epcisAddress) is the first query object information server (EPCIS) (line 3). Third, the getRootEPC () function is used to access the first query object information server (EPCIS) and determines the root EPC of the destination EPC (line 4). Finally, all the reaf EPCs of the root EPC are searched and returned (line 5-6).

If the root EPC is not clear, the method of determining the root EPC can be expressed as shown in Table 2 below.

Table 2 is a recursive algorithm for the process of searching for the root EPC. (AggregationEvent) smaller than the time (dateTime) of the input parameter related to the destination EPC is inquired to the object information server (EPCIS) (line 2). If there is an AggregationEvent, check whether the target EPC is the parent or child of the event. If the destination EPC is a child and the type of the AggregationEvent is not DELETE, then the destination EPC maintains its association with the parent EPC until the reference time (dateTime) (line 4-5). To check whether there is a parent EPC of the parent EPC of the destination EPC, the procedure is repeated by calling the getRootEPC () function again with the parent ID of the destination EPC until the final root EPC is retrieved. If the destination EPC is the parent of the binding event (AggregationEvent), it returns the current root EPC (root EPC (in the case of the first function call, the destination EPC is root EPC)) (lines 7-8). If there is no AggregationEvent as a result of line 2, it goes to the previous object information server (EPCIS) and calls the getRootEPC () function (line 9-11).

A method of searching all the child EPCs can be expressed as shown in Table 3 below.

Table 3 is a recursive algorithm for searching all child EPCs. (AggregationEvent) smaller than the time (dateTime) of the input parameter related to the root EPC determined through Table 2 to the object information server (EPCIS) (line 1). If there is an AggregationEvent, check the action field (line 2-3). If the action is not a DELETE, then the root EPC has a child EPC. The aggregation tracking () function is recursively called for all EPCs included in the child EPCs of the aggregation event (line 4-6). If the action of the AggregationEvent is DELETE, the corresponding EPC does not have a child EPC and stops its child search (lines 7-8). If there is no AggregationEvent, it goes to the previous object information server (EPCIS) (lines 9-10). If the previous object information server is not the first object information server, it calls the aggregationTracking () function (lines 11-13). If the previous object information server is the first object information server, the search is stopped (lines 13-14).

The carbon dioxide generation amount distribution server 110 distributes the carbon dioxide generation amount of the transportation vehicle calculated from the transportation information received from the transportation database server 140 to the shippers using the information about the received EPC.

Calculating a total amount of carbon dioxide generated by the transportation of the transportation vehicle from the received transportation information and dividing the weight of the entire object loaded on the transportation vehicle by the weight of each shipper using the weight of each received EPC; , The total amount of carbon dioxide generated by the operation of the calculated transportation vehicle may be divided by the weight of each shipper relative to the weight of the entire objects loaded on the transportation vehicle to distribute the amount of generated carbon dioxide of the transportation vehicle by the shippers.

The total amount of carbon dioxide generated in the transportation vehicle can be calculated from the transportation information using Equations (1) to (4). The weight for each shipment can be calculated using the weight information of each EPC among the information about the EPC. When the EPCs are sorted by shippers, the shipment weight can be calculated for each shipment, and the weight of all the transportation vehicles can be calculated by summing the weights of all the EPCs. And the weight of the total object is divided by the weight per each shipment. The total amount of carbon dioxide generated by the operation of the calculated transportation vehicle is divided by the weight of each shipper to the weight of the entire objects loaded on the transportation vehicle to distribute the generated amount of carbon dioxide of the transportation vehicle to each shipper.

The object information server 120 is a server for storing the EPC of the object by reading the RFID tag of the object when loading or dropping the object, which is a shipper to be transported, in the transportation vehicle. The object information server 120 is a server that stores EPC information that exists in a specific section or is read when passing through the specific section, and stores a combination event according to the EPC of the objects and whether the object is combined with another object .

The EPC master data server 130 is a server for storing information on the EPC inputted from the shippers. EPC master data server 130 A server for storing information about an object to be produced or transported by a shipper, wherein the information about the EPC registered by the shipper is a name, a type, a weight, a manufacturer, or a production date And may include at least one or more.

The operation database server 140 is a server for storing the transportation information of the transportation vehicle. Wherein the transportation information includes at least one of a fuel consumption amount, a carbon dioxide emission coefficient of fuel, a transportation distance, or a fuel consumption, the transportation distance is received from a position information system as a transportation distance according to the position data of the transportation vehicle, The usage amount can be received from the transportation vehicle terminal with the fuel consumption amount of the transportation vehicle.

FIG. 4 illustrates a carbon dioxide emission distribution system according to an embodiment of the present invention.

The carbon dioxide emission distribution system for each shipment according to the embodiment of the present invention will be described in order of time in FIG.

① Cargo information registration: Each company tags the RFID tag in a logistics container such as an item and a box or a pallet, and then stores the master information, namely name, type, weight, manufacturer, production date, do. In addition, the server storing the master information of the corresponding EPC must be registered in ONS. At this time, the code system of the RFID tag must use EPC, and the master information of the EPC can be operated as a separate server in the company or can be standardized globally synchronized using the GDSN.

② Object Combination Event Transmission: In order for the goods to be transported, the goods are packed in boxes, boxes are in pallets and pallets are in trucks. Physical binding events between objects can be expressed in the form of an AggregationEvent of the Object Information Server (EPCIS). In principle, EPCIS should be operated for each logistics site, and AggregationEvent is stored in EPCIS which manages the site where the physical connection is made. The event information stored in the EPCIS can be queried to the user with a standardized interface.

③ Goods issue: When a truck loaded with goods is shipped from a site, the shipment event is stored in EPCIS. At this time, the factory informs the DB server of the operation and executes the digital tachometer and the GPS receiver.

④ Track position data collection: It is possible to collect the coordinate information of the vehicle from the GPS receiver attached to the vehicle, and this information can show the moving state of the vehicle on the electronic map.

⑤ Operation data collection: Digital tachometer is a device that records the driving condition of a car. Revolution per minute (RPM), brake signal, overspeed and idling time, driving time, rapid acceleration, sudden braking, fuel consumption, etc. These data can be transmitted to the DB server at regular intervals of 1 to 5 minutes using CDMA during operation.

⑥ Goods receipt: RFID event is stored in EPCglobal network when vehicle is in stock. At this time, it is necessary to estimate the amount of carbon dioxide generated in the truck, and it is necessary to determine the weight of each cargo and distribute the amount of generated carbon dioxide to each shippers.

⑦ Acquisition of driving distance and fuel consumption data: When the goods receipt processing of the vehicle is performed, the moving distance and the fuel consumption amount from the vehicle departure to the arrival of the vehicle are collected from the DB server and transmitted to the carbon dioxide distribution system.

(8) Searching for objects loaded on the truck: In order to investigate the cargoes or EPCs loaded in the vehicle at the time of the arrival of the vehicle, the EPCIS of each shipper should be accessed and appropriate queries should be performed.

⑨ Cargo weight query: When the EPCs loaded on the truck are checked in step ⑧, ONS is inquired and the server storing the master information of each EPC is checked and the weight information of the cargo and the cargo is inquired by accessing each server.

⑩ Estimation and distribution of carbon dioxide emissions: Estimate the amount of carbon dioxide generated by the fuel method and the ton-kilometer method using the moving distance and fuel consumption data collected from ⑦ and ⑨. The amount of carbon dioxide generated by each shippers is distributed using the cargo weight information by shippers.

FIG. 5 is a flowchart of a carbon dioxide emission distribution method according to an embodiment of the present invention.

Step 510 is a step of receiving information on an electronic product code (EPC) of an object loaded on the transportation vehicle.

More specifically, information on the EPC of the object is received to divide the weight of the objects loaded on the transportation vehicle by the shippers. In order to receive information on the EPC, the EPC of all the objects loaded on the transportation vehicle is first searched, and information on all the retrieved EPCs is received. The details of this step will be described in detail with reference to FIG. 1, in which the EPC reception and EPC information reception of the objects loaded on the transportation vehicle, the object information server 120, and the EPC master data server 130, The object information server 120, and the EPC master data server (not shown) of the carbon dioxide generation amount distribution server 110 of FIG. 1, 130 of the present invention.

Step 520 is a step of receiving the transportation information of the transportation vehicle.

More specifically, the transportation vehicle receives the transportation information of the transportation vehicle to calculate the total amount of carbon dioxide generated in the transportation section in which the amount of generated carbon dioxide is to be calculated. Wherein the transportation information includes at least one of a fuel consumption amount, a carbon dioxide emission coefficient of fuel, a transportation distance, or a fuel consumption, the transportation distance is received from a position information system as a transportation distance according to the position data of the transportation vehicle, The usage amount can be received from the transportation vehicle terminal with the fuel consumption amount of the transportation vehicle. The detailed description of this step corresponds to the detailed description of the reception of the transportation information and the transportation database server 140 of the carbon dioxide generation amount distribution server 110 of FIG. 1, The reception of the transportation information and the detailed description of the transportation database server 140 will be performed.

In step 530, the amount of carbon dioxide generated in the transportation vehicle calculated from the transportation information is distributed to each shippers using information on the EPC.

More specifically, the amount of carbon dioxide generated in the transportation vehicle calculated using the CO2 emission amount calculation method according to Equations 1 to 4 from the transportation information received in step 520 is distributed to the shippers using the information on the EPC received in step 510 do. The detailed description of this step corresponds to the detailed description of the carbon dioxide generation amount distribution by the shippers of the carbon dioxide generation amount distribution server 110 of FIG. 1, and the detailed description of the carbon dioxide generation amount distribution by the carbon dioxide generation amount distribution server 110 of FIG. Replace it with a detailed description.

FIG. 6 is a flowchart of a method for receiving information on an EPC in a carbon dioxide emission amount distribution method according to an embodiment of the present invention.

Step 610 is a step of determining an object information server to be initially searched among the object information servers storing the EPC to be received.

More specifically, the EPC to be received may pass through a plurality of object information servers during the transportation process, and the object information server storing the EPC may be one or more. Therefore, an object information server to be initially searched to determine the root EPC of the transportation vehicle among the object information servers is determined. In order to determine the object information server to be initially searched, this step includes: receiving object information servers storing EPCs to be received; and receiving the most recent loading time or loading time preceding the specific time point of the EPC to be received And determining the object information server as the object information server to be initially searched, wherein the loading time is a time when the object corresponding to the EPC is loaded on the transportation vehicle, It may be the time of dropping the object from the vehicle. The object information server stores an association event according to whether the object is coupled with an EPC of objects in a specific interval and another object of the object. The detailed description of this step corresponds to a detailed description of the determination of the object information server to be initially searched by the carbon dioxide generation amount distribution server 110 of FIG. 1, and the detailed description of the object to be initially searched by the carbon dioxide generation amount distribution server 110 of FIG. It is replaced by a detailed description of the decision of the information server.

Step 620 searches all the child EPCs associated with the route EPC, which is the EPC of the transportation vehicle, and searches for EPCs of all the objects loaded on the transportation vehicle. And searches all the child EPCs of the root EPC to search for the EPC of all objects loaded on the transportation vehicle. This step will be described in detail in FIG.

Step 630 is a step of receiving information on the searched EPC.

More specifically, information on the EPC of all the objects loaded on the transportation vehicle, which is the result of the search in step 620, is received. The information on the EPC may be information registered by each of the shippers including at least one of a name, a type, a weight, a manufacturer, and a production date for each object. The detailed description of this step corresponds to the reception of the information on the EPC of the carbon dioxide generation amount distribution server 110 of FIG. 1 and the detailed description of the EPC master data server 130, and the carbon dioxide generation amount distribution server 110 ) Of receiving information on the EPC and receiving information on the EPC master data server 130 in detail.

FIG. 7 is a flowchart of a method for searching EPCs of all objects in a method for distributing carbon dioxide according to an embodiment of the present invention.

In operation 710, the root EPC is included as a parent EPC and the most recent join event preceding the specific time is read.

More specifically, all the child EPCs of the root EPC must be searched to search for the EPC of all the objects loaded on the transportation vehicle. In order to search all the child EPCs of the root EPC, the root EPC is included as the parent EPC and the most recent join event preceding the specific time is read out. The detailed description of this step corresponds to a detailed description of the search of all child EPCs of the carbon dioxide generation amount distribution server 110 of FIG. 1, and a detailed description of the search for all child EPCs of the carbon dioxide generation amount distribution server 110 of FIG. A detailed description of the reception of information is given instead.

Step 720 is a step of searching for all the child EPCs associated with the root EPC when the read-out combination event exists and the type of the association event is not the association release.

More specifically, if there is a binding event read in step 710, and the type of the binding event is not the unjoin, the root EPC is loaded on the transportation vehicle in a state coupled with the child EPC, And all child EPCs associated with it. The detailed description of this step corresponds to a detailed description of the search of all child EPCs of the carbon dioxide generation amount distribution server 110 of FIG. 1, and a detailed description of the search for all child EPCs of the carbon dioxide generation amount distribution server 110 of FIG. A detailed description of the reception of information is given instead. Searches all the child EPCs of the root EPCs, and searches the child EPCs of the child EPCs by repeating the step of reading the binding event for each of the searched child EPCs and searching for the child EPCs.

However, if the combining event is read out and the type of the combining event is the decoupling, the child EPC is unassociated and not loaded on the transportation vehicle, EPC of all the objects loaded in the EPC.

If the binding event is not read, the EPC determining the binding event can not determine whether there is a child EPC. In this case, it is determined whether the child EPC exists or not in the object information server before the object information server currently being searched The step of reading the binding event or searching the child EPC is repeated. The detailed description of this step corresponds to a detailed description of the search of all child EPCs of the carbon dioxide generation amount distribution server 110 of FIG. 1, and a detailed description of the search for all child EPCs of the carbon dioxide generation amount distribution server 110 of FIG. A detailed description of the reception of information is given instead.

FIG. 8 is a flowchart of a method for distributing the amount of generated carbon dioxide of a transportation vehicle by shippers in the method of distributing carbon dioxide according to an embodiment of the present invention.

Step 810 is a step of calculating the total amount of carbon dioxide generated by the transportation of the transportation vehicle from the received transportation information.

More specifically, the total amount of carbon dioxide generated by the transportation of the transportation vehicle is calculated using at least one of the methods of Equations (1) to (4) using the transportation information received in operation 520. The detailed description of this step corresponds to the detailed description of the calculation of the carbon dioxide generation amount of the carbon dioxide generation amount distribution server 110 of FIG. 1, and the detailed description of this step corresponds to the information on the information on the carbon dioxide generation amount calculation of the carbon dioxide generation amount distribution server 110 of FIG. Replace it with a detailed description.

Step 820 is a step of classifying the weight of the entire object loaded on the transportation vehicle by the weight of each shipper using the weight of each received EPC.

More specifically, the weight of the entire object loaded on the transportation vehicle is divided into weights by the weight of each EPC using the weight of each EPC included in the information about the EPC received in step 510. FIG. The detailed description of this step corresponds to the detailed description of the calculation of the carbon dioxide generation amount of the carbon dioxide generation amount distribution server 110 of FIG. 1, and the detailed description of this step corresponds to the information on the information on the carbon dioxide generation amount calculation of the carbon dioxide generation amount distribution server 110 of FIG. Replace it with a detailed description.

In step 830, the total amount of carbon dioxide generated by the operation of the calculated transportation vehicle is divided by the weight of each shipper to the weight of the entire objects loaded on the transportation vehicle, and the amount of generated carbon dioxide in the transportation vehicle is distributed per shipper.

More specifically, the total amount of carbon dioxide generated by the operation of the transportation vehicle calculated in operation 810 is divided by the weight of each of the shippers in relation to the weight of the entire objects loaded on the transportation vehicle calculated in operation 820, Distribute it. The detailed description of this step corresponds to the detailed description of the calculation of the carbon dioxide generation amount of the carbon dioxide generation amount distribution server 110 of FIG. 1, and the detailed description of this step corresponds to the information on the information on the carbon dioxide generation amount calculation of the carbon dioxide generation amount distribution server 110 of FIG. Replace it with a detailed description.

9 is an overall flowchart of a method for searching an EPC of all objects loaded on a transit vehicle according to an embodiment of the present invention.

In order to search for an EPC of all objects loaded on the transportation vehicle, an object information server (EPCIS) to be initially searched is first determined, and all child EPCs of the root EPC, which is the EPC of the transportation vehicle, It is possible to search for the EPC of all the objects.

To find all child EPCs of the root EPC, an aggregation tracking () function is called. First, it reads out the latest join event related to the root EPC. If the join event exists, it is determined whether the type of the join event is unbinding. If the type of the binding event is not the unjoin, it searches all the child EPCs of the root EPC and recalls the aggregationTracking () function for each of the discovered child EPCs. If the combining event does not exist, it is determined whether the previous object information server of the object information server currently being searched is the first object information server on the transportation path. If the old object information server is not the first object information server on the transportation path, the old object information server is moved to the previous object information server and calls the aggregation tracking () function. If the binding event is present and the binding event type is unbinding or if the binding event does not exist and the previous object information server is the first object information server on the transport path, And returns it to the EPC of the object. When the child EPC search using the aggregation tracking () function for all the child EPCs ends, all the detected child EPCs are determined as the EPCs of all objects loaded on the transportation vehicle.

10 is an overall flow diagram of a method for searching for EPCs of all objects loaded on a transit vehicle in case the input EPC according to an embodiment of the present invention is not clear whether it is a root EPC.

In order to search for the EPC of all the objects loaded on the transportation vehicle, an object information server (EPCIS) to be firstly searched is determined and a root EPC of all objects loaded on the transportation vehicle is determined. The EPC of all objects loaded on the transportation vehicle can be searched by searching all the child EPCs of the determined route EPC.

Only the step of determining the route EPC is different from the method of FIG. 9, and the method of searching all the child EPCs is the same. If the entered EPC is not the root EPC, it must find the root EPC.

To determine the root EPC, the getRootEPC () function is called. First, the EPC inputted to the EPC of the object loaded on the transportation vehicle is allocated to the route EPC, and the latest combination event related to the inputted EPC is read out. If the join event exists, it is determined whether the input EPC is a child EPC, and if the join event is a child EPC, whether the type of the join event is unjoined is determined. If the root EPC is a child EPC and the type of the binding event is not a decoupling, the parent device EPC recursively calls the getRootEPC () function on the parent EPC of the input EPC. If the binding event does not exist, or if the input EPC is not a child EPC or the type of the combining event is a decoupling, the current route EPC is determined to be the root EPC of the EPC of all the objects loaded on the transportation vehicle and returned . If the input EPC is not the child EPC and the join event does not exist, the input EPC can not be determined as the root EPC, the object information server is moved to the previous object information server and the getRootEPC do. When the root EPC is determined, all child EPCs of the root EPC are searched using the aggregationTracking () function.

A method of determining the route EPC will be described in detail in the following steps.

The first step is to assign the EPC to be received to the candidate route EPC. In order to determine the route EPC among the EPCs of all objects loaded on the transportation vehicle, the EPC inputted to the EPC of the object loaded on the transportation vehicle is firstly assigned to the candidate route EPC.

The second step is to read the most recent join event preceding the specific time point of the candidate route EPC among the join events of the object information server to be initially searched. In order to judge whether the candidate root EPC allocated in the first step is the root EPC, a coupling event on the coupling relation with another EPC is read. The most recent join event preceding the specific time point of the candidate root EPC is read in order to read out the join event for the candidate root EPC among the join events.

The third step is a step of determining whether the candidate route EPC is a child EPC when the read binding event exists. If there is a read event of the second step and the read combination event, it is determined whether the candidate route EPC is a child EPC. If the candidate route EPC is a child EPC, it is determined that the parent EPC exists and that the candidate route EPC is a child EPC. However, if the most recent join event preceding the specific time point of the candidate root EPC is not read, the root EPC can not be determined in the object information server currently being searched. In this case, .

The fourth step is to determine the candidate route EPC as the route EPC when the candidate route EPC is not a child EPC, and to determine the type of the combining event when the candidate route EPC is a child EPC. As a result of the determination in the third step, when the readout combination event exists and the candidate route EPC is not a child EPC, the candidate route EPC is not combined with the parent EPC but is coupled with the child EPC. , The candidate route EPC is determined as the route EPC, and the candidate route EPC is determined as the route EPC. However, if the candidate root EPC is a child EPC, the parent EPC is present, and the type of the coupling event is determined in order to determine whether the parent EPC is released from the loading or loading stage.

The fifth step determines the candidate EPC as the root EPC if the type of the binding event is unbundling, and if the type of the binding event is not unbundling, EPC. If it is determined in the fourth step that the candidate route EPC is a child EPC and that the type of the combining event is a disassembly result, the connection with the parent EPC is released before being loaded on the transportation vehicle, The parent EPC is not loaded on the transportation vehicle, and the candidate route EPC is determined as the route EPC. However, if the type of the combining event is not a disassembly event, the parent EPC of the candidate route EPC is loaded on the transportation vehicle. In order to determine whether the parent EPC is the route EPC, . After assigning the parent EPC to the candidate route EPC, the step of determining the route EPC until the EPC assigned to the candidate route EPC is determined as the route EPC is repeated.

Embodiments of the present invention may be implemented in the form of program instructions that can be executed on various computer means and recorded on 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. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and 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.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

100: Carbon dioxide emission distribution system by shippers
110: Carbon dioxide generation distribution server
120: Object information server
130: EPC master base server
140: Transport Database Server

Claims (12)

A method for distributing carbon dioxide generated by a shipper,
Receiving information on an electronic product code (EPC) of an object loaded on a transportation vehicle by a carbon dioxide generation amount distribution server;
Receiving the transportation information of the transportation vehicle by the carbon dioxide generation amount distribution server; And
Wherein the carbon dioxide generation amount distribution server calculates weight ratios of the respective shippers by using the information about the EPC and distributes the generated amount of carbon dioxide of the transportation vehicle calculated from the transportation information by shippers,
Wherein the step of receiving information about the EPC comprises:
Determining an object information server to be searched first among the object information servers storing the route EPC, which is the EPC of the transportation vehicle;
Searching all the child EPCs associated with the root EPC in the object information server to search for EPCs of all objects loaded on the transportation vehicle; And
And receiving information about the searched EPC,
The object information server comprises:
Storing an association event according to whether an EPC of objects in a specific interval and a connection with another object of the object are combined,
Wherein the weight ratio of each shipper is a ratio of the weight of the object of each shipper loaded on the transportation vehicle to the weight of the entire object loaded on the transportation vehicle,
Wherein the EPC is unique identification information of the object. The method according to claim 1,
In the EPC,
When the merchant object is loaded or unloaded from the transportation vehicle, the RFID tag of the object is read and stored in the object information server (EPCIS)
The information on the EPC may include,
Wherein each of the shippers is information including at least one of a name, a type, a weight, a manufacturer, and a production date for each object. delete The method according to claim 1,
Wherein the step of determining an object information server to be initially searched comprises:
Receiving object information servers storing the root EPC; And
Determining an object information server including the latest loading time or loading time preceding a specific time point of the root EPC as the object information server to be initially searched,
Wherein the loading time is a time when the object corresponding to the EPC is loaded on the transportation vehicle, and the loading time is a time when the object is loaded from the transportation vehicle. The method according to claim 1,
Wherein the step of searching for EPCs of all objects loaded on the transportation vehicle comprises:
Reading the most recent join event including the root EPC as a parent EPC and preceding the specific time; And
Searching for all child EPCs associated with the root EPC if the read-out binding event is present and the type of the binding event is not unbinding;
Repeating the step of reading the binding event for each of the searched child EPCs and searching for the child EPC,
If the type of the binding event is the decoupling, determining that all the searched child EPCs are EPCs of all objects loaded on the transportation vehicle, and if the combining event is not read, The method comprising: repeating the step of reading the binding event and the step of searching the child EPC. The method according to claim 1,
Wherein the step of distributing the amount of carbon dioxide generated by the transportation vehicle by shippers comprises:
Calculating total amount of carbon dioxide generated by transportation of the transportation vehicle from the received transportation information;
Calculating a weight ratio of each shipper by dividing the weight of the entire object loaded on the transportation vehicle by the weight per each shipper using the weight information included in the information about each received EPC; And
And dividing the amount of carbon dioxide generated in the transportation vehicle by the shippers by dividing the total amount of generated carbon dioxide generated by the operation of the calculated transportation vehicle by the weight ratio of each of the shippers. The method according to claim 1,
The transportation information includes:
A fuel consumption amount, a carbon dioxide emission coefficient of the fuel, a transportation distance, or fuel consumption,
Wherein the transportation distance is received from the location information system as a transportation distance according to the location data of the transportation vehicle, and the fuel consumption is received from the transportation vehicle terminal by the fuel consumption amount of the transportation vehicle. 6. The method of claim 5,
Wherein the type of the combining event is one of combining and unlinking,
The parent EPC is an EPC of an object including the other object when one object is included in another object,
The child EPC is an EPC of an object included in the other object,
Wherein the root EPC is a top-level parent EPC that is not contained in another object. A computer-readable recording medium storing a program for causing a computer to execute the method according to any one of claims 1, 2, and 4 to 8. A system for distributing carbon dioxide generated by a shipper,
An EPC master data server storing information on the EPC input from the shippers;
An object information server for reading the RFID tag of the object and storing the EPC of the object when the object to be transported is loaded or unloaded from the transportation vehicle;
A transportation database server storing transportation information of the transportation vehicle; And
Receiving the EPC of the object loaded on the transportation vehicle from the object information server, receiving the information on the received EPC from the EPC master data server, receiving the transportation information of the transportation vehicle from the transportation database server, And a carbon dioxide generation amount distribution server for distributing a carbon dioxide generation amount of the transportation vehicle to each shipment by using the EPC,
The carbon dioxide generation amount distribution server comprises:
Determining an object information server to be searched first among the object information servers storing the root EPC, which is the EPC of the transportation vehicle, searching all the child EPCs associated with the root EPC in the object information server, Searches for EPCs of all objects, receives information about the retrieved EPCs,
The object information server comprises:
And stores a combining event according to whether an EPC of objects in a specific section and a combination of the objects with other objects are combined. 11. The method of claim 10,
Wherein the EPC of the object loaded on the transportation vehicle comprises:
Wherein all child EPCs associated with the route EPC, which is the EPC of the transport vehicle, are searched in the object information server using a combination event and a type of the combination event. 12. The method of claim 11,
In the child EPC,
It is determined whether there is a combining event associated with the child EPC of the current EPC and whether the type of the combining event is unjoined until a matching event associated with the child EPC exists and the type of the combining event is found to be an unlinking EPC And the search is repeatedly performed.

Images