KR102030273B1 - Steel trading system - Google Patents

Abstract

Embodiments of the present invention provide a rebar transaction system comprising: a receiving unit for receiving transaction information including rebar information from a user terminal; a transmitting unit for providing the transaction information to the user terminal; a transaction intermediating unit for registering the transaction information and intermediating transactions for the transaction information between a seller and a buyer through the receiving unit and the transmitting unit; and an analyzing unit for calculating rebar demand by receiving buyer′s process data or building characteristic data through the receiving unit. Therefore, According to the embodiments of the present invention, the rebar distribution structure can be diversified and a reasonable and reliable rebar price can be formed by intermediating rebar transactions online through the transaction intermediating unit which intermediates the rebar transactions and calculating the type, quantity and input time of rebar through the analyzing unit; and the rebar can be purchased with a low price at a good time in accordance with the input time of the rebar.

Description

Rebar Trading System {STEEL TRADING SYSTEM}

The present invention relates to a rebar trading system, and more particularly, to accurately predict the prices of reinforcing bars, thereby reinforcing the reinforcing bars by predicting the type, quantity, and timing of reinforcing bars to be profitable to buyers or sellers of reinforcing bars and to be put in accordance with the public offering. It is about rebar trading system to secure rebar at low cost before input.

Reinforcing bars are rod-shaped steel that is used to reinforce concrete.

Rebars are sold offline to construction companies through large, medium or small distributors, making it difficult to diversify their distribution structure.

In addition, the rebar is not able to form a reasonable and reliable consumer unit price by adding intermediate margins and fixing prices between rebar manufacturers or distributors through various stages of distributors.

In addition, the reinforcing bar is not injected at the same time when constructing, but divided into several times during the construction period, it is not necessary to purchase the rebar at once, there is a difficulty in storing the reinforcing bar when purchased at the same time. Therefore, it is necessary to purchase rebar at a low price in a timely manner in accordance with the reinforcement timing of the reinforcing bar. It is difficult for a small and medium-sized construction company to determine an appropriate reinforcing time for itself and to purchase rebar at a low price in accordance with the reinforcing bar reinforcement time.

Korean Patent Registration No. 10-1723887 discloses the trading of waste metal resources to efficiently predict the price of waste metal resources so that users who purchase or sell waste metal resources can maximize the total profit. Regarding a transaction condition review system for, the purchase management module for inducing the purchase of waste metal resources by calculating the profit and loss to be generated in the transaction according to the transaction conditions, including quantity and grade for the waste metal resources to be purchased; A sales management module which compares and compares the transaction conditions including quantities, grades, and quotes with respect to the total profits of the waste metal resources to sell the waste metal resources with the maximum profit of the waste metal resources; An inventory management module that manages the inventory of the waste metal resources according to the amount of the waste metal resources purchased and sold by the purchase and export information and the purchase management module and the sales management module stored in the server database; A transaction profit and loss review simulation module for calculating a total profit generated when a waste metal resource is traded by using input and output information of the waste metal resources stored by the server database, and reviewing profit and loss between transactions; And a quote prediction module for predicting future quotes based on past and present quotes of the scrap metal resources using the entry and exit information of the scrap metal resources stored by the server database. .

However, in the conventional resource trading system, the unit price prediction is based on the past or present unit price, and thus the unit price prediction is inaccurate because it does not actively reflect the trading environment that affects the unit price of resources such as actual supply or demand pattern. In particular, as the natural environment such as the economic situation or climate changes rapidly in recent years, it is necessary to forecast the unit price by actively reflecting the trading environment of resources.

In addition, the conventional resource trading system does not provide an efficient purchase method for resources that can be purchased separately over a number of times, such as reinforcing bars required for construction.

In order to solve the above problems, embodiments of the present invention are a receiver for receiving transaction information including reinforcing information from the user terminal, a transmitter for providing transaction information to the user terminal, register the transaction information and the seller through the receiver and the transmitter And it provides a reinforcing bar trading system comprising an analysis unit for calculating the reinforcement demand by receiving the buyer's process data or building characteristic data through a transaction intermediary and receiving unit for brokering a transaction for the transaction information between the buyer.

In addition, embodiments of the present invention has an object to provide a rebar trading system that calculates the reinforcement demand of the basement and ground of the total rebar amount based on the number of floors through the process data.

In addition, embodiments of the present invention has an object to provide a rebar trading system for calculating the reinforcement demand for each type of reinforcement from the reinforcement demand of the basement and the ground analyzed according to the number of floors.

In addition, embodiments of the present invention is to provide a reinforcing bar trading system for storing the total volume correction coefficient divided according to the number of floors and multiplying the total surface area correction coefficient by the total floor area.

In addition, embodiments of the present invention has an object to provide a rebar trading system for calculating the construction period according to the structure and the number of floors through the building characteristic data.

In addition, embodiments of the present invention is to provide a rebar trading system for estimating the rebar supply amount through the production schedule of the rebar to predict the unit price of the rebar or predict the unit price of the rebar based on the demand pattern of the rebar.

One embodiment of the present invention for achieving the above object is a receiving unit for receiving transaction information including reinforcing bar information from the user terminal; A transmitter for providing the transaction information to a user terminal; A transaction brokering unit for registering the transaction information and brokering a transaction for the transaction information between the seller and the buyer through the receiver and the transmitter; And an analysis unit configured to receive process data or building characteristic data of the buyer through the receiver to calculate rebar demand.

In one embodiment, the process data includes the number of floors, area, ground and underground process schedule, the analysis unit may calculate the reinforcement demand of the underground and ground of the total reinforcing bar amount according to the floor number through the process data.

In one embodiment, the analysis unit may calculate the reinforcement demand for each type of reinforcement from the reinforcement demand of the basement and the ground analyzed according to the number of floors.

In one embodiment, the analysis unit may store the total quantity correction coefficient divided by the number of floors and multiply the total area by the total quantity correction coefficient may calculate the total rebar quantity.

In one embodiment, the building characteristic data includes a structure, the number of floors, and the analysis unit may calculate the construction period according to the structure and the number of floors through the building characteristic data.

In one embodiment, the analysis unit estimates the rebar supply amount through the production schedule of the reinforcing bar to predict the unit price of the rebar, or predict the unit price of the rebar based on the demand pattern of the rebar.

As described above, embodiments of the present invention comprises a receiving unit for receiving transaction information including reinforcing information from a user terminal, a transmitting unit for providing transaction information to a user terminal, and registering transaction information between the seller and the buyer through the receiving unit and the transmitting unit. The rebar distribution system can be diversified by providing a rebar trading system including an analysis section that calculates the rebar demand by receiving the buyer's process data or building characteristic data through the transaction brokerage section and the receiving section that brokers the transaction for the transaction information. Reasonable and reliable rebar unit price can be formed, and rebar can be purchased at a low price in time according to reinforcement time of rebar.

In addition, embodiments of the present invention by calculating the reinforcement demand of the underground and ground of the total reinforcement amount according to the number of floors through the process data, it is possible to purchase the rebar at a timely low price by accurately calculating the reinforcement amount according to the reinforcement time It has an effect.

In addition, embodiments of the present invention by calculating the reinforcement demand for each type of reinforcement from the reinforcement demand of the basement and the ground analyzed according to the number of floors, it is possible to purchase the rebar at a timely low price by accurately calculating the type of rebar according to the reinforcement time It can be effective.

In addition, embodiments of the present invention by storing the total volume correction coefficient divided by the number of floors and multiplying the total surface area correction factor by the total floor area to calculate the total amount of rebar, by calculating the amount of rebar correctly according to the reinforcement time of the reinforcement timely low Rebars can be purchased at a price.

In addition, embodiments of the present invention by calculating the construction period according to the structure and the number of floors through the building characteristic data, there is an effect that can be purchased at a low price at a timely price in accordance with the reinforcement time of the rebar.

In addition, embodiments of the present invention by estimating the reinforcement supply amount through the production schedule of the rebar to predict the unit price of the rebar or the rebar price based on the demand pattern of the rebar, the effect that can accurately predict the rebar price have.

Not limited to the above-mentioned effects, other effects that are not mentioned can be clearly understood by those skilled in the art from the following description.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings are provided to assist in understanding the present invention, and provide embodiments with a detailed description. However, the technical features of the present invention are not limited to the specific drawings, and the features disclosed in the drawings may be combined with each other to constitute new embodiments.
1 is a block diagram illustrating an example of a rebar trading system according to the present invention.
2 is a block diagram illustrating an example of a rebar transaction server according to the present invention.
Figure 3 is a block diagram showing an example of the type and quantity of reinforcing bars for each input time according to the present invention.
4 is a flowchart showing an example of a rebar trading method according to the present invention.

Since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be interpreted as being limited by the embodiments described in the text. That is, since the present embodiments can be variously modified and can have various forms, the scope of the present invention should be understood to include equivalents that can realize the technical idea. In addition, the objects or effects presented in the present invention does not mean that a specific embodiment should include all or only such effects, the scope of the present invention should not be understood as being limited thereby.

The rebar trading system disclosed in the following embodiments will be described in more detail with reference to the accompanying drawings.

1 is a block diagram illustrating an example of a rebar trading system according to the present invention.

Referring to FIG. 1, a rebar trading system according to an embodiment may include a rebar trading server 100, a user terminal 200, and a rebar management server 300.

The rebar transaction server 100 may be connected to the user terminal 200 and the rebar management server 300 through a communication network. Here, the communication network may mean a wide concept network including a wired or wireless communication network.

The rebar transaction server 100 may receive transaction information including rebar information from the user terminal 200. Here, the transaction information may correspond to sales information or purchase information.

Hereinafter, unless otherwise stated, sales information or purchase information is used in the same concept as transaction information.

The rebar transaction server 100 may also receive information for establishing a transaction, such as a sales intention, a purchase intention, a sale approval, or a purchase approval, from the user terminal 200. When the rebar transaction server 100 receives the sales information or the purchase information, the reinforcement transaction may be performed by registering the corresponding information.

Here, the sales information may be information including the type and quantity of rebars to be sold by the seller, and the purchase information may be information including the type and quantity of rebars the buyer wants to buy. The sales information or purchase information may include a price, and the price may be a unit price or a total price.

Meanwhile, the type of reinforcing bar may be classified based on the diameter of the reinforcing bar. More specifically, the numerical range of diameters may be regarded as one species, such as more than or less than the reference value based on the specific numerical value of the diameter.

For example, diameter 13mm, diameter 16mm, and diameter 19mm can be classified into three types by considering three values of 13mm, 16mm, and 19mm, respectively, as one species, and range of less than 16mm in diameter and more than 16mm in diameter based on 16mm in diameter. May be classified into two types, each as a species.

In addition, the sales intention may be information indicating that the seller intends to sell the purchase information registered in the rebar transaction server 100, and the purchase intention information indicates the intention of the buyer to purchase the registered sales information. Can be. The rebar transaction server 100 may register and receive a purchase intention or a sales intention.

Meanwhile, the sales doctor or the purchase doctor may include a quantity to be traded so that some transactions may be made. In addition, if the price is not included in the registered purchase information or the registered sale information, the sales doctor or the purchase doctor may include a price to be traded.

In addition, the sale approval may be information for establishing a transaction by approving the sale according to the contents of the purchase intention to the purchaser of the registered purchase doctor when the purchase intention is registered with respect to the sales information registered in the rebar transaction server 100. . The purchase approval may be information for establishing a transaction by approving the purchase according to the contents of the sales intention to the seller of the registered sales doctor when the sales doctor is registered with respect to the purchase information registered in the rebar transaction server 100.

The rebar transaction server 100 may receive information for canceling a transaction, such as a purchase cancellation or a sale cancellation, from the user terminal 200.

The rebar transaction server 100 establishes a transaction such as sales information, purchase information, a sales intention, a purchase intention, a sales approval, or a purchase approval to a user terminal 200 of a buyer or a seller, or performs a transaction such as a cancellation or a cancellation of a sale. Information recommending transmission of information for cancellation or information informing the suspension of transmission can be transmitted. Through such transmission, the rebar transaction server 100 may recommend a buyer or a seller to recommend a transaction or suspend or cancel a transaction.

The rebar transaction server 100 may receive process data or building characteristic data from the user terminal 200 of the purchaser. Process data or building characteristic data will be described with reference to FIG. 2.

Further, the rebar transaction server 100 recommends the buyer to trade the sales information or withholds or cancels the transaction depending on whether the sales information is related to the type, quantity, and timing of reinforcing bars required for construction. ) Can be sent to inform.

The rebar transaction server 100 may receive a production schedule of rebar from the rebar management server 300.

Each configuration of the rebar transaction server 100 will be described in detail with reference to FIG. 2.

The user terminal 200 may be connected to the rebar transaction server 100 through a communication network, and the user terminal 200 may mean a terminal of a buyer or a seller. Here, the user terminal 200 and the terminal is a notebook, mobile phone, smart phone (2G / 3G / 4G / LET, smart phone), PMP (Portable Media Player), PDA (Personal Digital Assistant) and Tablet PC (Tablet PC) It may be any one of.

The user terminal 200 may automatically recognize the reinforcing bar information included in the tag attached to the rebar in order to produce or manage the rebar in the rebar manufacturer or rebar distributor through the sensor of the user terminal 200.

Here, the tag may include a string or a barcode and the sensor of the user terminal 200 may be a camera.

The user terminal 200 may recognize the character on the tag through the sensor to recognize the reinforcement information, such as the type of rebar, or recognize the bar code, and then receive the reinforcement information, such as the type of reinforcing bar corresponding to the bar code from the reinforcement manufacturer, etc. have.

As such, by allowing the user terminal 200 to automatically recognize the rebar information such as the type of rebar included in the tag attached to the rebar, the seller sells to the rebar transaction server 100 through the user terminal 200. When transmitting the information, efforts to input reinforcing bar information included in the sales information can be reduced, and reinforcing bar information input mistakes can be prevented.

The rebar management server 300 may be connected to the rebar transaction server 100 through a communication network. The rebar management server 300 may transmit the production schedule of the rebar to the steel transaction server (100).

Here, the production schedule of the reinforcing bar may be information including the type, amount and date of production of the reinforcing bar produced by each rebar manufacturer for the reinforcing bar produced by various rebar manufacturers.

2 is a block diagram illustrating an example of a rebar transaction server according to an embodiment.

2, the rebar transaction server 100 according to an embodiment includes a receiver 110, a transmitter 120, an analyzer 130, a transaction broker 140, a database 150, and a controller 160. It may include.

The receiver 110 may receive sales information or purchase information from the user terminal 200, and may receive information for establishing a transaction such as a sales doctor, a purchase intention, a sales approval, or a purchase approval in addition to the sales information or the purchase information. And cancel information such as cancel purchase or cancel sales.

In addition, the receiving unit 110 may receive a production schedule of the reinforcing bar from the reinforcing bar management server 300.

In addition, the receiver 110 may receive process data or building characteristic data from the user terminal 200 of the purchaser. Process data may include number of floors, area, ground and underground process schedules, and building characteristic data may include structures and characteristics. Process data and building characteristic data will be described later.

The transmitting unit 120 establishes a transaction such as sales information, purchase information, a sales intention, a purchase intention, a sales approval, or a purchase approval to a user terminal 200 of a buyer or a seller, or cancels a transaction such as a cancellation or a cancellation of a sale. Information that encourages the transmission of information for the purpose of doing so or information that the transaction is to be suspended.

The analysis unit 130 may predict the unit price of the rebar based on the transaction price of the rebar. More specifically, the analysis unit 130 obtains the transaction price for a certain period from the database 150 to be described later, and then predicts the price of the reinforcement using a prediction technique. Here, the simple moving average method, the weighted moving average method, etc. may be used as the prediction technique.

In addition, the analysis unit 130 may estimate the unit price of the rebar by estimating the rebar supply amount through the production schedule of the rebar. More specifically, the analysis unit 130 obtains the production schedule of the reinforcing bar from the reinforcing bar management server 300 through the receiving unit 110 or from the database 150 to be described later can estimate the production amount and production date for each type of reinforcing bar have. Therefore, the analysis unit 130 estimates that the supply of each type of bar will increase by the amount of production after each production date, so that the unit price of each type of bar will be lower than the current unit price for a certain period from a specific date of the production date. Predict that

At this time, the analysis unit 130 obtains the past rebar unit price and the past rebar price from the database 150 to be described later in order to accurately predict the specific date, the fixed period and the constant value, the production schedule is the rebar unit price The impact on the data can be analyzed and reflected in the forecast.

On the other hand, the analysis unit 130 may obtain a production schedule of the past rebar from the steel management server (300).

In addition, the analysis unit 130 may predict the unit price of the rebar based on the demand pattern of the rebar. More specifically, the analysis unit 130 is a year in which construction is mainly started at the beginning of the cold weather last year, the construction is delayed due to the rainy season or heat wave in the summer, the construction is accelerated to prevent construction delay in the autumn and the construction is mainly completed at the end of the year Through this characteristic, we can analyze the demand pattern of increase and decrease of demand of rebar and predict the unit price of rebar based on the demand pattern of rebar.

For example, the analysis unit 130 estimates that the demand for rebar will increase at the beginning of the year when construction is mainly started, and the demand for rebar will decrease from the end of the year when construction is mainly completed. It can be predicted that for a period similar to, it will be higher than the unit price before the start of construction.

In addition, the analysis unit 130 estimates that the demand of the rebar will decrease from the beginning of the rainy season, and the demand of the rebar will increase from the end of the rainy season, so that the unit price of the rebar is consistent with the unit price before the rainy season. It can be expected to be as low as the value.

At this time, the analysis unit 130 from the database 150 to be described later in order to accurately predict the start date or the period during which the unit price changes the constant value, the past rebar unit price, past construction trend, past rainy season start date or rainy season After obtaining the period and the like, it is possible to analyze the effects of changes in demand patterns due to construction trends or the rainy season on the rebar unit price and reflect them in the forecast.

As such, the analysis unit 130 may predict the rebar unit price based on the actual supply quantity and demand pattern such as the production schedule rather than predict the rebar unit price based on the rebar unit price in the past, thereby increasing the accuracy of the rebar unit price prediction. Can be.

In addition, the analysis unit 130 may calculate the demand for the rebar through the purchaser's process data or building characteristic data received through the receiver 110.

Here, the process data may be information including the number of floors, the area, the process schedule of the ground and underground, and the building characteristic data may be information including the structure and the number of floors of the construction object.

More specifically, the analysis unit 130 obtains process data or building characteristic data from the user terminal 200 of the purchaser through the receiving unit 110 and should be put into construction as construction proceeds through process data or building characteristic data. Calculate the type, quantity and timing of rebar.

First of all, the method to calculate the type, quantity, and timing of reinforcing bars to be input as the construction progresses through the process data will be described.

First, we will look at how to calculate the reinforcement timing of rebar.

The rebar input time can be set in advance every month or at the beginning of each week, or the start date of construction of each floor. Even if the reinforcing bar is pre-set monthly or early in the week, if the reinforcing bar is not secured by the planned quantity at the beginning of each month or every week, the reinforcing bar required for the construction of each floor before the start of construction of each floor to prevent construction delays. It is important to calculate the start dates for each floor so that it can be secured.

However, the process data may include the ground and underground process schedule for constructing the construction object, so the start date of construction of each floor and ground floor can be directly known through the process schedule, or by dividing the entire construction period by the number of floors. Indirectly known. In the latter case, it is desirable to set the construction start date of each floor so that the construction period is longer than the other floors that require special work such as the lowest floor or the top floor. Here, the period in which the construction of the special floor is longer than the other floors can also be determined in advance according to the complexity of the structure of the special floor.

That is, the input timing of the reinforcing bar of each layer may be calculated through the process data.

Second, we will look at how to calculate the quantity of rebar.

The quantity of rebar can be divided into total rebar volume, underground and ground rebar volume, and rebar volume by input time. Here, rebar quantity and reinforcement demand are used in the same sense.

Let's look at how to calculate the total rebar volume.

The total amount of rebar required for construction can be calculated using the following equation. Here, the total floor area is the sum of the areas of all the floors, and the total amount of reinforcing bars may mean the total weight of the reinforcing bars in the construction.

<Equation 1>

In Equation 1, A is a total quantity correction factor, and the value of A may vary according to the number of floors of a building.

Therefore, the analysis unit 130 stores the total quantity correction coefficient A classified according to the number of floors, and then retrieves the A value corresponding to the number of floors of the building through the number of floors of the building included in the process data and calculates the area included in the process data. After calculating the total surface area through, the A value can be calculated by multiplying the total surface area by the A value.

However, if the total amount of rebar is included in the process data, the total amount of rebar may be obtained directly from the process data without the above calculation.

Next, we will look at how to calculate the amount of rebar in the basement and ground.

Since the basement floor must be constructed to withstand the pressure from the ground in contact with the basement, more reinforcement per floor may be required than the ground floor. Therefore, in order to determine the quantity of rebar required per floor or to set the quantity of reinforcing bar that should be put in every week or early month when constructing the basement or ground floor, it is necessary to know the reinforcement demand of the basement and the ground.

Reinforcement demand, both underground and above, can be determined as a percentage of the total rebar volume. For example, the ratio of reinforcement demand between the basement and the ground can be four to six or three to seven.

On the other hand, as the number of building floors increases, more pressure is applied to the basement floor than the ground floor, so the ratio of reinforcement demands of the basement and the ground may vary according to the number of floors of the building. For example, if the building is 10 stories high, the ratio of reinforcement demand between the basement and the ground is 2 to 8, but if the building is 20 stories, the ratio of rebar demand between the basement and the ground can be 3 to 7.

Therefore, the analysis unit 130 stores the ratio of the reinforcement demand of the basement and the ground according to the number of floors of the building, and then calculates the ratio of the reinforcement demand of the basement and the ground corresponding to the number of the floors of the building through the number of the floors of the building included in the process data. The rebar volume is calculated by dividing the total rebar volume obtained by the above-mentioned method by the above ratio and calculating the rebar volume of the basement and the ground.

Let's take a look at how to calculate rebar quantity by input time.

As mentioned above, the rebar injection timing may be set in advance every month or at the beginning of each week, or the start date of construction of each floor. If the reinforcing bar is pre-set monthly or early every week, the analysis unit 130 can obtain the construction periods of the basement and the ground through the process schedules of the basement and the ground included in the process data, and each construction period is the number of months. Alternatively, by converting the number of reinforcements in the basement and the ground obtained by the above-mentioned method into the number of states and the number of months in the basement and the ground or the number of states, the amount of reinforcing bars to be put in each month or at the beginning of each week can be calculated.

For example, if the rebar loading time is set at the beginning of each month, the process schedule of the underground and the ground is 10 months and 20 months, respectively, and if the rebar loads of the underground and the ground are 300 kg and 700 kg, respectively, 300 kg during the 10 months of underground construction. 30 kg, divided by 10 months, can be put at the beginning of each month, and 35 kg, which is 700 kg divided by 20 months, can be put at the beginning of each month during the 20 months of ground work.

When the reinforcing bar is set as the start date of each floor, the analysis unit 130 divides the reinforcing bar volume of the basement and the ground into the number of basement floors and the number of ground floors. Can be calculated.

For example, when the reinforcement time of reinforcing bar is set as the start date of construction of each floor, if the rebar volume of underground and ground is 300kg and 700kg, respectively, and the number of underground and ground floors is 3 and 10, respectively, 300kg at the start of construction of each underground floor. 100kg divided by 3 should be inputted, and 70kg divided by 10 should be inputted at the start of construction on each floor.

Thirdly, the method of calculating the amount of reinforcement in the basement and the ground by the type of reinforcing bar and the method of calculating the amount of the reinforcing bar by type required for the input period will be examined.

Investigate how to calculate the amount of rebar in the basement and the ground by type of rebar.

When constructing, various rebars with different diameters can be used. Generally, reinforcing bars used for construction are classified into two types of rebars having a diameter less than a specific value based on the diameter of a specific value, and rebars having a diameter above a certain value. And two types of rebar may have a weight ratio.

For example, in order to construct a building requiring a total weight of 100 kg, two types of rebars having a diameter of less than 20 mm and two types of rebars having a diameter of 20 mm or more may require a weight ratio of 60 kg and 40 kg, respectively.

On the other hand, as mentioned above, the basement layer is more pressured than the ground layer, so it may be necessary to have more steel bars in the basement layer. In addition, as the number of floors increases, the basement layer is subjected to more pressure than the ground layer, so that the ratio of the steel bar to the basement layer needs to be larger than that of the ground layer.

For example, because the basement layer is under more pressure than the ground layer, the weight ratio of rebars having a diameter of 20 mm or more and rebars having a diameter of less than 20 mm may be 6 to 4 in the basement layer and 2 to 8 in the ground layer. That is, the weight ratio of the large diameter rebar in the basement layer may be greater than the weight ratio of the large diameter rebar in the ground layer.

In addition, as the number of floors increases, the pressure applied to the basement floor increases so that if the weight ratio of the basement floor is 6 to 4 and the weight ratio of the ground floor is 2 to 8 in the 10-story building, the weight ratio of the basement floor is 9 to 1 in the 20-story building. And the weight ratio of the ground layer may be 3 to 7. That is, as the number of floors increases, the weight ratio of the reinforcing bar in the basement layer may increase more than the weight ratio of the reinforcing bar in the ground layer.

Therefore, the analysis unit 130 stores two weight ratios of the basement and the ground according to the number of floors of the building, and the two kinds of the above-mentioned basement and the ground corresponding to the number of floors of the building through the number of floors of the building included in the process data. Finding the weight ratio and dividing the underground rebar volume obtained by the above-mentioned method according to the above-mentioned weight ratio of the basement, the two kinds of rebar volume of rebars having a diameter below a certain value and rebars having a diameter above a certain value are required as underground rebars. Can be calculated

Similarly, the analysis unit 130 is divided into the above-mentioned weight ratio of the ground by the above-mentioned weight ratio of the ground obtained by the above-mentioned method, the reinforcing bar having a diameter less than a certain value and the rebar having a diameter above a certain value You can calculate the type of rebar.

We will look at how to calculate the amount of rebar for each type needed at the time of input.

The analysis unit 130 stores two weight ratios of the basement and the ground classified according to the number of floors of the building, and the two weight ratios of the basement and the ground corresponding to the number of floors of the building through the number of floors of the building included in the process data. After dividing the reinforcement amount by the input time of the underground obtained by the method mentioned above by the above weight ratio of the basement, the reinforcement quantity required for the injection time in the underground, the two reinforcing bars with the diameter less than the specified value and the reinforcement with the diameter more than the specific value You can calculate the type of rebar.

Similarly, the analysis unit 130 is divided by the above-mentioned weight ratio of the ground by the above-mentioned weight ratio of the ground obtained by the above-mentioned method, the reinforcing bar having a diameter less than a certain value as the amount of steel required at the time of input from the ground and more than a specific value It is possible to calculate the quantity of two kinds of reinforcing bars of reinforcing bars with diameter.

As such, the analysis unit 130 may calculate the type, quantity, and input timing of the reinforcing bars to be input as the construction proceeds through the process data.

Figure 3 is a block diagram showing an example of the type and quantity of reinforcing bars for each input time according to the present invention.

Referring to FIG. 3, the type and quantity of steel (lower graph) for each input time according to an embodiment may be calculated through process data (upper graph). More specifically, the analysis unit 130 calculates that the large diameter steel bars (Maximum and Extended) are mainly input at the beginning of each month until September 15, 15 when the basement is mainly constructed from the process data (upper graph). From September 15, when the ground floor is mainly constructed, it is calculated that the standard steel with relatively small diameter is mainly used at the beginning of each month.

Next, we will look at how to calculate the type, quantity and timing of reinforcing bars that should be injected as the construction progresses through the building characteristic data.

First, we will look at how to calculate the reinforcement timing of the reinforcement through the building characteristic data.

As mentioned above, the rebar input timing can be set in advance every month or every week, or the start date of each floor. The building characteristic data does not include the process schedule, so the start date of each floor is directly known. Can't. Therefore, it is possible to calculate the construction start date of each floor through the method of calculating the construction period and the construction period calculation method.

We will look at how to calculate the construction period through building characteristic data and how to calculate the start date of construction of each floor in reverse.

If the structure of the construction object is complicated or the number of floors is increased, the time required for construction may be long, and the total construction time may be as follows.

<Equation 2>

In Equation 1, B, D, and C may refer to the time required to construct the remaining ground layers except for the ground layer 1, the ground top layer, and the ground layer 1 and the ground layer. In addition, in Equation 1, B, D and C may also refer to the time required to construct the basement floors except for the basement floor, the basement floor 1 and the basement floor and the basement floor.

The reason for distinguishing the underground from the ground is that, as mentioned above, since the basement is under more pressure than the ground, more work is required for the construction of the basement so that the basement can withstand the pressure well. Therefore, B, C, D for obtaining the construction time of the basement layer may be larger than B, C, D for obtaining the construction time of the ground layer.

On the other hand, as the structure of the building becomes more complex, the values of B, C, and D may increase little by little. In general, the complexity of the building structure may be divided into three stages: simple, normal, and complex. Therefore, the B, C, and D values of the above formula can be obtained through the structure of the building, so the time required for each floor can be calculated. If the construction start date of each floor is determined through the time required for each floor, it is possible to calculate the timing of reinforcing bar required for each floor.

Therefore, the analysis unit 130 stores B, C, and D having two values of ground and basement according to the structure of the building, and the basement and ground corresponding to the structure of the building through the structure of the building included in the building characteristic information. After searching for two B, C and D, we can calculate the input time of reinforcing bar for each floor after construction start.

Second, we will look at how to calculate the type and quantity of reinforcing bars that should be injected at the time of construction as the construction progresses through the building characteristic data.

As mentioned above, the process schedule can be calculated from the building characteristic data. Therefore, if the building characteristic data includes the number of floors and the area, the process data can be obtained from the building characteristic data.

Therefore, the analysis unit 130 calculates the type, quantity and timing of the rebar through the building characteristic data that should be input as the construction proceeds through the method of calculating the type, quantity, and timing of rebar through the aforementioned process data. Can be calculated

The transaction broker 140 may register the sales information, the purchase information, the sales intention or the purchase intention received from the user terminal 200, and the sales information between the seller and the buyer through the receiver 110 and the transmitter 120 or You can broker transactions for purchasing information.

In addition, the transaction intermediary 140 may recommend that the buyer recommend a transaction for the sales information or the purchase information or suspend or cancel the transaction so as to benefit the buyer according to the predicted rebar price.

More specifically, the transaction broker 140 recommends the transaction if the current or future rebar price is higher than the price of the transaction for the sales information or the purchase information based on the price predicted by the analysis unit 130. Or if the future rebar price is lower than the price of the transaction for the sales information or purchase information to inform the buyer's user terminal 200 through the transmission unit 120 to suspend or cancel the transaction.

Here, the price may mean a unit price and the following price may correspond to a unit price.

Here, the price of the transaction for sales information is the transaction price when the transaction is established through the sales information. If the price is included in the sales information, the price is included in the sales information. It may mean a price contained in.

Here, the price of the transaction for the purchase information is the transaction price when the transaction is established through the purchase information, which may mean the price if the price is included in the purchase information, and the sales intention if the price is not included in the purchase information. It may mean a price contained in.

In addition, the recommendation of a transaction for the sales information may mean that the transaction broker 140 transmits information to the buyer's user terminal 200 to recommend the purchase intention for the sales information.

If the price is not included in the sales information, the transaction broker 140 may transmit information to the buyer's user terminal 200 that recommends to send a purchase intention including the lowest price as the current or future rebar price. Can be.

Also, recommending a transaction for the purchase information means that the transaction broker 140 transmits a purchase approval to the purchaser's user terminal 200 when the seller registers a sales intention for the purchase information. It may mean sending information that recommends to do.

If there are multiple sales doctors and each sales doctor includes a price, the transaction broker 140 may provide the buyer's user terminal 200 with information to recommend the purchase approval for the sales doctor with the lowest price. I can send it.

In addition, here, to inform that the transaction with respect to the sale information is to be suspended or canceled, the transaction brokerage unit 140 transmits information to the buyer's user terminal 200, not to send a purchase intention about the sales information, but to hold it. Alternatively, if the purchaser has already sent a purchase intention, it may mean transmitting information to the purchaser's user terminal 200 that invites the purchase cancellation.

In addition, here, to inform that the transaction with respect to the purchase information is to be suspended or canceled, when the seller registers the sales intention for the purchase information, the transaction brokerage unit 140 to the user terminal 200 of the buyer to the sales doctor In this case, the information may be transmitted to the user terminal 200 of the purchaser, when the information is transmitted to the buyer, but not transmitted, or when the purchaser has already sent the purchase approval.

On the other hand, the transaction broker 140 may recommend to the buyer to recommend the transaction for the sales information, or inform the buyer to withhold or cancel the transaction, depending on whether the sales information is related to the rebar predicted to be put into construction.

More specifically, the transaction intermediary 140 is based on the type, quantity and timing of rebars predicted to be put into construction in the analysis unit 130 is the type of rebar included in the sales information of the rebar If it belongs to the type of recommendation transaction for the sales information and if the kind of reinforcing bar included in the sales information does not belong to the predicted type of reinforcing bar buyer through the transmission unit 120 to cancel or cancel the transaction for the sales information Notifies the user terminal 200 of the.

Herein, the meaning of recommending a transaction for sales information and informing a user to suspend or cancel a transaction for sales information is as mentioned above.

In addition, when recommending a transaction for the sales information, the transaction broker 140 may preferentially recommend a transaction for sales information belonging to the type of reinforcing bar that is about to be input based on the estimated timing of the rebar input. .

In addition, the transaction intermediary 140 is included in the sales information on the basis of the price predicted by the analysis unit 130 together with the type, quantity and timing of the reinforcing bar predicted to be put into construction in the analysis unit 130. If the price of the type of the reinforcing bars belonging to the type of the predicted reinforcing bar and the price of the type of the predicted reinforcing bar from the present to the predicted injection time is higher than the price of the transaction for the selling information, It can be recommended.

On the other hand, the type of rebar included in the sales information does not belong to the predicted rebar type or the price of the predicted rebar type from the present to the predicted injection time is lower than the price of the transaction for the sales information. If it is, the purchaser may notify the user terminal 200 of the purchaser through the transmitter 120 to suspend or cancel the transaction.

Here, the meaning of recommending the price of the transaction for the sales information and the transaction for the sales information and to inform the suspension or cancellation of the transaction for the sales information is as mentioned above.

Meanwhile, the transaction broker 140 may register the predicted type and quantity of rebar as the purchase information with reference to the input time.

More specifically, the transaction intermediary 140 is based on the type, quantity, and timing of the reinforcing bars predicted to be put into construction in the analysis unit 130, the type and quantity of the predicted reinforcing bars before the predicted input time. Register to include in the purchase information.

In addition, the transaction broker 140 is currently predicted based on the price predicted by the analyzer 130 together with the type, quantity and timing of rebars predicted to be input to construction by the analyzer 130. It is possible to register by including the predicted type and quantity of the reinforcing bar in the purchase information at the time when the price of the type of the predicted rebar is lowest among the time until the input time.

The transaction broker 140 may recommend the seller to sell or purchase information or to suspend or cancel the transaction so as to benefit the seller according to the predicted price.

More specifically, the transaction broker 140 recommends the transaction if the current or future rebar price is lower than the price of the transaction for the sales information or the purchase information based on the price predicted by the analysis unit 130. Or if the future rebar price is higher than the price of the transaction for the sales information or purchase information to inform the user terminal 200 of the seller via the transmitter 120 to withhold or cancel the transaction.

Here, the price of the transaction for the sales information, the price of the transaction for the purchase information is as described above.

Here, recommending a transaction for sales information means that when a purchaser registers a sales intention for the purchase information, the transaction brokerage unit 140 transmits the sales approval for the purchase intention to the user terminal 200 of the seller. It may mean sending information that recommends to do.

If there are several purchase doctors and each purchase doctor includes a price, the transaction broker 140 may send the user terminal 200 of the seller's user terminal 200 with information that recommends to send the sales approval for the purchase doctor with the highest price. I can send it.

Also, recommending a transaction for the purchase information may mean that the transaction broker 140 transmits information to the user terminal 200 of the seller to invite the sales intention about the purchase information.

If the purchase information does not include a price, the transaction broker 140 may transmit information to the user terminal 200 of the seller recommending to transmit a sales intention including the highest price as the current or future rebar price. Can be.

In addition, here, to inform that the transaction with respect to the sale information is to be suspended or canceled, when the purchaser registers a purchase intention for the sale information, the transaction brokerage unit 140 to the user terminal 200 of the seller to the purchase intention In this case, the information may be transmitted to the user terminal 200 of the seller if the seller transmits the information inviting the user to withhold the sales approval, or if the seller has already sent the sales approval.

In addition, here, to inform that the transaction with respect to the purchase information is to be suspended or canceled, the transaction brokerage unit 140 transmits information to the user terminal 200 of the seller, not to send a sales intention about the purchase information, but to hold it. Alternatively, if the seller has already sent a sales intention, it may mean transmitting information to the user terminal 200 of the seller inviting the seller to cancel the sale.

The database 150 may store a production schedule of the reinforcing bar received through the receiver 110. In addition, the rebar price made in the rebar transaction server 100 can be stored.

The database 150 is a concept including a computer-readable recording medium, and refers to not only a narrow database but also a database in a broad sense including a file system-based data record. If the data can be extracted, it is included in the scope of the database in the present invention.

Finally, the controller 160 controls the overall operation of the rebar transaction server 100, and controls between the receiver 110, the transmitter 120, the analysis unit 130, the transaction broker 140 and the database 150 You can control the flow or data flow.

4 is a flowchart showing an example of a rebar trading method according to the present invention.

Referring to FIG. 4, the rebar trading method 400 according to an embodiment may include a receiving step 410, an analyzing step 420, and a determining step 430.

In the receiving step 410, the rebar transaction server 100 may receive the sales information or purchase information from the user terminal 200 and may receive the production schedule of the reinforcing bar from the rebar management server 300.

In addition, the rebar transaction server 100 may register the sales information or purchase information and receive a sales intention for the registered purchase information or a purchase intention for the registered sales information from the user terminal 200, the sales doctor or purchase intention Can be registered.

In addition, the rebar transaction server 100 may receive a purchase approval for a registered sales doctor or a sale approval for a registered purchase doctor from the user terminal 200.

The rebar transaction server 100 may perform the analysis step 420 and the determination step 430 when the sales information, the purchase information, the sales intention, the purchase intention, the sales approval or the purchase approval are received or at regular intervals.

In addition, the rebar transaction server 100 can estimate the rebar supply amount through the production schedule of the rebar to predict the unit price of the rebar or to predict the unit price of the rebar based on the demand pattern.

At this time, the rebar transaction server 100 may predict the price by referring to the influence of the production schedule of the past rebar or the past demand pattern on the past rebar unit price.

In addition, the rebar transaction server 100 may predict the type, quantity and input timing of the reinforcing bar to be put into construction as the construction proceeds through the process data or through the building characteristic data.

In the determination step 430, the rebar transaction server 100 may recommend to the buyer to recommend the transaction for sales information or purchase information or to suspend or cancel the transaction in order to benefit the buyer according to the predicted price.

In addition, the rebar transaction server 100 may recommend to the buyer to recommend a transaction for the sales information or to suspend or cancel the transaction depending on whether the sales information is related to the rebar predicted to be put into construction.

In addition, the rebar transaction server 100 may register the type and quantity of the predicted rebar as the purchase information with reference to the input time.

In addition, the rebar transaction server 100 may recommend a seller to sell or purchase information or to suspend or cancel the transaction so as to benefit the seller according to the predicted price.

As described above, although described with reference to the preferred embodiments of the present application, those skilled in the art various modifications of the present application without departing from the spirit and scope of the invention described in the claims below And can be changed.

100: rebar trading system 110: receiver
120: transmitter 130: analyzer
140: transaction brokerage 150: database
160: control unit
200: user terminal

Claims (6)

A receiving unit for receiving transaction information including reinforcing bar information from a user terminal;
A transmitter for providing the transaction information to a user terminal;
A transaction brokering unit for registering the transaction information and brokering a transaction for the transaction information between the seller and the buyer through the receiver and the transmitter; And
Receiving process data or building characteristic data of the purchaser through the receiving unit includes an analysis unit for calculating the reinforcement demand,
The process data or building characteristic data includes the area and the number of floors of the building,
The analysis unit prestores the total quantity correction coefficient divided according to the number of floors, calculates the total rebar quantity based on the total area and the total quantity correction coefficient, which is the sum of the areas of all the floors of the building, and rebars based on the total rebar quantity. Calculate demand,
Reinforcing bar trading system, characterized in that for brokering a transaction based on the calculated rebar demand.
The method of claim 1,
The analysis unit reinforcement trading system, characterized in that for calculating the reinforcement demand of the basement and the ground using the ratio of the reinforcement of the basement and the ground according to the number of floors.
The method of claim 2,
The analysis unit reinforcement trading system, characterized in that for the reinforcement demand of the basement and the ground calculates the reinforcement demand for each type of reinforcement using the ratio of the type of reinforcing bars predetermined according to the number of floors, respectively.
delete The method of claim 1,
The building characteristic data includes the structure and the number of floors,
Reinforcing bar system, characterized in that for calculating the construction period according to the structure and the number of floors.
delete

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