KR102452790B1 - System for providing inventory management service for dental supplies - Google Patents

Abstract

Provided is a dental supplies inventory convenient management service provision system including: a user terminal that sets the inventory quantity of at least one dental product and inputs whether or not to approve the same when an automatic order form for at least one dental product is generated and received; and an inventory management service providing server. The inventory management service providing server includes: a database unit for storing at least one unique identification code assigned to at least one dental product to be mapped; a stock setting unit for storing the unique identification code and inventory quantity of the at least one dental product when the user terminal sets the inventory quantity for at least one dental product; an automatic order generator for generating an automatic order form to meet the preset inventory quantity and transmitting it to the user terminal if at least one dental product of the user terminal does not satisfy the preset inventory quantity; and a progress unit that proceeds with an order when the user terminal approves an automatic purchase order.

Description

Dental supplies inventory management service provision system

The present invention relates to a dental supplies inventory management service providing system, and provides a platform for managing dental supplies using a unique identification code and automatically including them in an order list when the inventory quantity is less than a set amount to generate an automatic order form.

Supply chain management, which connects the entire logistics pipeline from product production to a series of distribution processes to the final consumer, into one integrated solution, has been applied in various fields and is recently applied to the domestic medical field. In other words, healthcare supply chain management is already being applied in the global medical field. As overall costs related to the supply chain in the medical field are rising rapidly, it is urgent to come up with an alternative to reduce these cost increases. Efforts are being made by medical institutions to maximize profitability and respond quickly to customer needs through efficient management of supply chain management-related inventory, products, data, and cash flow.

At this time, a system for managing dental inventory using tags has been researched and developed. In the issue (published on February 04, 2013), the inventory management terminal manages the inventory information of dental materials with electronic tags attached, and the dental treatment display terminal provides three-dimensional image information of the patient's teeth and dental material information applied to the patient. Displays the medical chart recorded by the manufacturer, and the manufacturer server manages the manufacturing information and delivery information of dental materials with electronic tags attached, RFID tags are attached to dental articles, and production, distribution, and consumption of dental articles A configuration for efficiently managing inventory, logistics, and returns in each step is disclosed.

However, although it is stated that both the former and the latter are managed using tags, the reality is that only the records of incoming and outgoing are recorded, there is no automated process using this data, and all orders must be placed through human hands. In each dental office, the quantity of inventory required is determined roughly or by experience, and each employee counts the type and quantity of inventory one by one and writes an order form in order to always match this quantity. If a mistake occurs in the inventory management of more than 400 dental supplies per dentist, patients may have to be returned even after reservations for treatment or surgery. Accordingly, research and development of a platform that can automatically perform inventory management in dentistry is required.

An embodiment of the present invention receives a set stock quantity for at least one dental appliance from each user terminal, and generates an automatic order form by including it in the order list when the set stock quantity is used up or less, and the generated automatic order form is the user If confirmed at the terminal, it proceeds with the order process and manages it with a unique identification code to make it easier to check inventory, order and check delivery, and learn and verify the exhaustion pattern of dental supplies for each dentist, while customizing inventory management. After building big data using public data, it is possible to provide a dental supplies inventory management service providing system that can provide convenience in inventory management by providing predictive data according to the demographic characteristics of each region and patient. However, the technical task to be achieved by the present embodiment is not limited to the above-described technical task, and other technical tasks may exist.

As a technical means for achieving the above-described technical problem, an embodiment of the present invention sets the inventory quantity of at least one dental appliance, and when an automatic order form for at least one dental appliance is generated and received, whether or not to approve When setting the inventory quantity for at least one dental appliance in the user terminal and at least one dental appliance, the user terminal and the at least one dental appliance are assigned a unique identification code and stored in the database to be mapped. Inventory setting unit to store the unique identification code and inventory quantity of the product, when at least one dental appliance of the user terminal does not satisfy the preset stock quantity, an automatic order form is created to meet the preset stock quantity and sent to the user terminal and an inventory management service providing server including an automatic order form generation unit, and a progress unit for processing an order when the user terminal approves the automatic order form.

According to any one of the above-described problem solving means of the present invention, the inventory quantity for at least one dental appliance is set from each user terminal, and when the set stock quantity is used up or less, it is included in the order list to generate an automatic order form, When the generated automatic order form is confirmed by the user terminal, it proceeds with the order process and manages it with a unique identification code to make it easier to check inventory, order and check delivery. On the other hand, inventory management can be facilitated by providing predictive data according to each region and patient's demographic characteristics after building big data using public data.

1 is a view for explaining a dental supplies inventory management service providing system according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating an inventory management service providing server included in the system of FIG. 1 .
3 and 4 are diagrams for explaining an embodiment in which a dental supplies inventory management service according to an embodiment of the present invention is implemented.
5 is an operation flowchart illustrating a method of providing a dental supplies inventory management service according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is "connected" with another part, this includes not only the case of being "directly connected" but also the case of being "electrically connected" with another element interposed therebetween. . Also, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated, and one or more other features However, it is to be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded in advance.

The terms "about," "substantially," and the like, to the extent used throughout the specification are used in or close to the numerical values when manufacturing and material tolerances inherent in the stated meaning are presented, and are intended to enhance the understanding of the present invention. To help, precise or absolute figures are used to prevent unfair use by unscrupulous infringers of the stated disclosure. As used throughout the specification of the present invention, the term "step of (to)" or "step of" does not mean "step for".

In this specification, a "part" includes a unit realized by hardware, a unit realized by software, and a unit realized using both. In addition, one unit may be implemented using two or more hardware, and two or more units may be implemented by one hardware. Meanwhile, '~ unit' is not limited to software or hardware, and '~ unit' may be configured to be in an addressable storage medium or may be configured to reproduce one or more processors. Thus, as an example, '~' denotes components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays and variables. The functions provided in the components and '~ units' may be combined into a smaller number of components and '~ units' or further separated into additional components and '~ units'. In addition, components and '~ units' may be implemented to play one or more CPUs in a device or secure multimedia card.

In this specification, some of the operations or functions described as being performed by the terminal, apparatus, or device may be performed instead of in a server connected to the terminal, apparatus, or device. Similarly, some of the operations or functions described as being performed by the server may also be performed in a terminal, apparatus, or device connected to the server.

In this specification, some of the operations or functions described as mapping or matching with the terminal means mapping or matching the terminal's unique number or personal identification information, which is the identification data of the terminal. can be interpreted as

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

1 is a view for explaining a dental supplies inventory management service providing system according to an embodiment of the present invention. Referring to FIG. 1 , the dental supplies inventory management service providing system 1 may include at least one user terminal 100 , an inventory management service providing server 300 , and at least one seller terminal 400 . However, since the dental supplies inventory management service providing system 1 of FIG. 1 is only an embodiment of the present invention, the present invention is not limitedly interpreted through FIG. 1 .

At this time, each component of FIG. 1 is generally connected through a network (Network, 200). For example, as shown in FIG. 1 , at least one user terminal 100 may be connected to the inventory management service providing server 300 through the network 200 . In addition, the inventory management service providing server 300 may be connected to at least one user terminal 100 and at least one seller terminal 400 through the network 200 . In addition, the at least one seller terminal 400 may be connected to the inventory management service providing server 300 through the network 200 .

Here, the network refers to a connection structure in which information exchange is possible between each node, such as a plurality of terminals and servers, and an example of such a network includes a local area network (LAN), a wide area network (WAN: Wide Area Network), the Internet (WWW: World Wide Web), wired and wireless data communication networks, telephone networks, wired and wireless television networks, and the like. Examples of wireless data communication networks include 3G, 4G, 5G, 3rd Generation Partnership Project (3GPP), 5th Generation Partnership Project (5GPP), Long Term Evolution (LTE), World Interoperability for Microwave Access (WIMAX), Wi-Fi (Wi-Fi) , Internet, LAN (Local Area Network), Wireless LAN (Wireless Local Area Network), WAN (Wide Area Network), PAN (Personal Area Network), RF (Radio Frequency), Bluetooth (Bluetooth) network, NFC ( Near-Field Communication) networks, satellite broadcast networks, analog broadcast networks, Digital Multimedia Broadcasting (DMB) networks, and the like are included, but are not limited thereto.

In the following, the term at least one is defined as a term including the singular and the plural, and even if at least one term does not exist, each component may exist in the singular or plural, and may mean the singular or plural. it will be self-evident In addition, that each component is provided in singular or plural may be changed according to embodiments.

The at least one user terminal 100 may be a terminal of a dental manager who applies for inventory management of dental supplies using a dental supplies inventory management service-related web page, an app page, a program or an application. The user terminal 100 may be a terminal that approves or rejects, that is, only final confirmation, when an automatic order form is provided by the inventory management service providing server 300 after setting the inventory quantity of at least one dental appliance. . The user terminal 100 may be a terminal that checks the order list and the delivery list by scanning the unique identification code of the delivered dental appliance and comparing it with the dental appliance list in the automatic order form, or it may be a terminal managing the expiration date.

Here, the at least one user terminal 100 may be implemented as a computer capable of accessing a remote server or terminal through a network. Here, the computer may include, for example, navigation, a laptop equipped with a web browser, a desktop, and a laptop. In this case, the at least one user terminal 100 may be implemented as a terminal capable of accessing a remote server or terminal through a network. At least one user terminal 100, for example, as a wireless communication device that guarantees portability and mobility, navigation, PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS(Personal Handyphone System), PDA(Personal Digital Assistant), IMT(International Mobile Telecommunication)-2000, CDMA(Code Division Multiple Access)-2000, W-CDMA(W-Code Division Multiple Access), Wibro(Wireless Broadband Internet) ) terminal, a smartphone, a smart pad, a tablet PC, etc. may include all kinds of handheld-based wireless communication devices.

The inventory management service providing server 300 may be a server providing a dental supplies inventory management service web page, an app page, a program or an application. In addition, the inventory management service providing server 300 collects dental product data such as the type, detailed information, and price of at least one dental product from at least one seller terminal 400, and generates and maps a unique identification code. It may be a server that stores it later. Inventory management service providing server 300, after selecting the stock quantity of dental supplies and dental supplies from the user terminal 100 and automatically entering the dental supplies into the order list when the stock quantity currently held is lower than the set stock quantity It may be a server that generates an automatic order form. And, the inventory management service providing server 300, after receiving the delivery from the user terminal 100 after placing an order with at least one seller terminal 400 when the automatic order form is approved by the user terminal 100, a unique identification code In the case of scanning , it may be a server that processes delivery completion and performs inventory management and expiration date management.

Here, the inventory management service providing server 300 may be implemented as a computer that can connect to a remote server or terminal through a network. Here, the computer may include, for example, navigation, a laptop equipped with a web browser, a desktop, and a laptop.

The at least one seller terminal 400 may be a terminal of a manufacturer, a producer, and a seller using a dental appliance inventory management service-related web page, an app page, a program or an application. The seller terminal 400 uploads information about dental products to the inventory management service providing server 300 , and when an order request is received from the inventory management service providing server 300 , it is a terminal that manages orders, delivery, exchange and returns. can

Here, the at least one seller terminal 400 may be implemented as a computer capable of accessing a remote server or terminal through a network. Here, the computer may include, for example, navigation, a laptop equipped with a web browser, a desktop, and a laptop. In this case, the at least one seller terminal 400 may be implemented as a terminal capable of accessing a remote server or terminal through a network. At least one merchant terminal 400, for example, as a wireless communication device that guarantees portability and mobility, navigation, PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS(Personal Handyphone System), PDA(Personal Digital Assistant), IMT(International Mobile Telecommunication)-2000, CDMA(Code Division Multiple Access)-2000, W-CDMA(W-Code Division Multiple Access), Wibro(Wireless Broadband Internet) ) terminal, a smartphone, a smart pad, a tablet PC, etc. may include all kinds of handheld-based wireless communication devices.

Figure 2 is a block diagram for explaining the inventory management service providing server included in the system of Figure 1, Figures 3 and 4 is an embodiment of the dental supplies inventory management service according to an embodiment of the present invention is implemented It is a drawing for explanation.

Referring to FIG. 2 , the inventory management service providing server 300 includes a database conversion unit 310 , an inventory setting unit 320 , an automatic order form generation unit 330 , a progress unit 340 , a delivery check unit 350 , It may include a product management unit 360 , a timing determination unit 370 , an implant management unit 380 , an expiration date management unit 390 , a reservation management unit 391 , and a prediction unit 393 .

The inventory management service providing server 300 according to an embodiment of the present invention or another server (not shown) operating in conjunction with at least one user terminal 100 and at least one seller terminal 400 manages dental supplies inventory When transmitting a service application, program, app page, web page, etc., at least one user terminal 100 and at least one seller terminal 400, dental supplies inventory management service application, program, app page, web page, etc. can be installed or opened. In addition, the service program may be driven in at least one user terminal 100 and at least one seller terminal 400 by using a script executed in a web browser. Here, the web browser is a program that enables the use of a web (WWW: World Wide Web) service, and refers to a program that receives and displays hypertext written in HTML (Hyper Text Mark-up Language), for example, Netscape. , Explorer, Chrome, and the like. In addition, the application means an application on the terminal, for example, includes an app (App) executed in a mobile terminal (smartphone).

Before describing FIG. 2, the basic concept of FIG. 2 will be described below. Those described below will not be repeated in FIG. 2 .

<Medical Supply Chain Management>

Before examining the concept of Supply Chain Management (SCM), we must first look at the concept of Supply Chain (SC). The supply chain typically consists of two important business processes: Material Management and It includes physical logistics. Material management means procurement logistics and physical distribution means shipment logistics. Material management is concerned with the acquisition and storage of raw materials, parts and supplies. In detail, material management supports the entire cycle of material flow, from the purchase and internal control of production raw materials to planning and management of the manufacturing process, and storage, shipment and distribution of the final product. On the other hand, physical distribution includes all shipping and logistics activities related to providing services to customers. These activities include order receipt and processing, inventory placement, storage and handling, shipping and transportation, consolidation, pricing, facilitation support, and return product handling. , life cycle support, etc.

Before examining the concept of Healthcare Supply Chain Management (HSCM), first looking at the concept of Healthcare Supply Chain (HSC), the healthcare supply chain consists of four major players, namely, producers (pharmaceutical companies). , buyers (dealers, consignees and wholesalers), providers (health-related institutions, pharmacies), and patients. Producers produce pharmaceuticals, medical devices and implants, and medical and surgical supplies related to medical delivery. Buyers consist of Group Purchasing Organizations (GPOs) and distributors who facilitate payment and shipment of goods from manufacturers to suppliers. Among these buyers, the main participants are consignees and wholesalers. The difference between these two parties is fundamentally related to the acquisition of ownership of goods. The consignee works as a consignee account, and the consignee is paid as a fee condition for the service, and the consignee temporarily stores the product and sends the product to the provider. The wholesaler acquires ownership of the drug and assumes the associated operating risk in taking advantage of the drug's availability from industry or by subcontractors.

HSCM includes sales activities and operations that integrate a continuous and uninterrupted flow of materials and services for the delivery of health care. One of HSCM's greatest challenges is maintaining sufficient inventory levels to maintain operationally waste-reducing quality and timely patient care. For this reason, HSCM is designed to ensure a high level of service by maximizing resource allocation in order to respond effectively and promptly to patients' treatment needs. The HSCM process includes three types of flow: material flow, information flow, and monetary flow. Material flows include the supply of medicines, pharmaceuticals, surgical supplies, medical devices, sanitary supplies, food supplies, and devices and other ancillary products needed to support doctors, nurses and patients. Information flow and financial flow are related to effective product flow and supply chain decisions to improve organizational performance. Successful HSCM requires the planning, management and control of these flows through the integration of key processes.

<Medical supplies inventory management>

Healthcare Supplies Inventory Management refers to the process of determining the order time, order quantity, and appropriate stock level and maintaining and managing it at an optimal level in order to respond quickly and economically when a demand for goods occurs. Its main purpose is to minimize the total inventory cost, including the purchase unit price, storage and maintenance cost, order cost, and inventory quality loss cost, and to maintain an appropriate inventory and connect it to economical purchasing activities. In HSCM, inventory management of medical supplies means determining optimal stock levels, developing inventory investment, replenishment and sorting systems, while ensuring immediate availability of necessary medicines and supplies. These applications include time-phased inventory planning such as cycle counting, supplier managed inventory (VMI) and material requirements planning (MRP). Although many health care institutions have recognized the importance of adopting SCM practices, the methods and best practices originally developed in the application of the technology and in industrial applications are often problematic. For that reason, the main factor is that the introduction of SCM is very complicated because various items in a wide variety of quantities have to be processed in response to a large number of diagnostic types and procedures.

Accordingly, in one embodiment of the present invention, at least one dental appliance and stock quantity used in dentistry are selected and set, and an automatic order form is generated by comparing the preset stock quantity and the currently held stock quantity, and the user It reduces manpower and time wasted in inventory management by ensuring only the final confirmation of the report, and prevents wastage of assets by automatically managing the expiration date. We will provide a platform that can simplify the process of checking one by one.

Referring to FIG. 2 , the database unit 310 may store at least one dental appliance to be mapped by assigning at least one unique identification code. The unique identification code may be a one-dimensional barcode including a barcode or a two-dimensional barcode including a QR code. The at least one dental article may include at least one equipment, instrument, and material used in dentistry.

Inventory setting unit 320, when setting the inventory quantity for at least one dental product in the user terminal 100, the user terminal 100, the unique identification code and the inventory quantity of the at least one dental product may be stored. For example, dentist A uses 400 dental supplies, and for dental supplies 1 to 400, use data from the time when dentist A opened a hospital may be recorded in the computer. Knowing how much of a product or material is consumed can help determine the order quantity and order cycle efficiently. This saves unnecessary orders and costs associated with handling materials that are nearing their expiration date. Accordingly, it is possible to receive data of exhaustion of each dental appliance from dentist A, or set the type and quantity of each dental appliance from dentist A. For example, if the stock quantity of dental supplies 1 is set to 10, and the current stock quantity of dental supplies 1 is 3, automatic ordering may be possible with [1-7 dental supplies].

The automatic order form generation unit 330, when at least one dental appliance of the user terminal 100 does not satisfy the preset stock quantity, generates an automatic order form to meet the preset stock quantity and transmits it to the user terminal 100 have. The user terminal 100 may set the inventory quantity of at least one dental appliance, and input whether or not to approve when an automatic order form for at least one dental appliance is generated and then received. If there is insufficient data for more than 400 dental products, for example, even if there is no dedicated staff, the consumption cycle of each dental product is several days or weeks, and if you do not know how many items are in stock, a dentist may have opened. From the time until the present, there is no choice but to estimate and set the stock quantity based on the order data.

Accordingly, the automatic order book generation unit 330 may use the order amount adjustment algorithm (Adjustment Algorithm). In particular, it can be used by focusing on the feedback relationship, which is a decision-making mechanism. One of the factors that directly influences inventory management decision-making is demand forecasting accuracy. If each employee sets a demand forecasting accuracy target of about 75%, using the demand management mechanism, the employee makes a decision reflecting the control action to match the predicted demand (pre-order quantity) with the actual demand. This accuracy-based approach to inventory management may face a high risk of depletion. This can be supplemented by an inventory management method that considers the nature or importance of the management object to zero the risk of material exhaustion. Accordingly, an embodiment of the present invention can use a demand forecasting accuracy improvement feedback structure and an inventory importance reflection feedback structure, which is premised on having only partial information because there is not much accumulated data. In other words, it is difficult to estimate the distribution of demand due to the lack of accumulated data. Under partial information, the decision maker is assumed to use a range approach. In addition, assuming various demands, it is possible to simulate three types of demand conditions: flat level demand, trend-reflected demand, and seasonal index-reflected demand within a certain range.

<Order quantity determination algorithm using partial demand information>

The traditional inventory model for stochastic demand presupposes complete knowledge of the probability distribution of demand. However, in reality, it is difficult to fully grasp information on demand distribution, especially in a rapidly changing market. Therefore, the situation in which order quantity can be determined with complete demand information is an ideal case, and in reality, it can be said that it is common to have partial demand information. The problem of making an order decision based on only partial information has long been of interest, but the Maximin approach determines the order quantity assuming that only the mean and variance of demand are known as the concept of maximizing the worst-case profit. This approach is inherently designed for problems with multiple random variables and is a conservative approach that is limited to simple newsvendor problems.

On the other hand, a relatively less conservative approach is the Minimax Regret approach, which allows decision makers to minimize the maximum possible opportunity cost. In particular, it has been used to describe the behavioral patterns of people's behavior as an alternative to the Utility Theory. We also use the concept of regret to reflect the observed bias between determining the actual order quantity and the optimal order quantity for the news vendor. Above all, the approach to identifying maximum regrets related to the order quantity determination mechanism aims to maximize a function for all random distributions that satisfy the instantaneous constraint, and provides various application algorithms such as price selection, inventory management, etc. do. The equation for determining the optimal order quantity (q*) using only partial information (mean, range, variance, symmetry, etc.) of the demand distribution based on the regret theory can be used. Optimal order quantity can be derived.

At this time, there are 8 partial information of demand distribution available: ① Range, ② Mean, ③ Mean & Median, ④ Mean & Symmetry, ⑤ Unimodality & Mode & Range, ⑥ Unimodality & Mode & Median, ⑦ Unimodality & Mode & Symmetry , ⑧ mean & variance, and this information can be used as a variable for determining the order quantity. Here, unimodality refers to a distribution having one of the highest points among probability distributions, and includes a normal distribution, a Cauchy distribution, a T-distribution, an exponential distribution, and a Poisson distribution. At this time, the optimal order quantity (y*) derivation formula using range (minimum value, maximum value) information and average information is the same as Equation 1 and Equation 2 below. Equation 1 is a derivation when the range is known, and Equation 2 is a derivation when the mean is known. In Equations 1 and 2, β is the concept of the reciprocal of inventory importance (CR), A and B mean the minimum and maximum values, respectively, and σ* means the regret index. In an embodiment of the present invention, an inductive approach using range information is used. In this case, the inventory criticality (CR) means the critical ratio, which is this ratio composed of the excessive inventory cost and the excessive inventory cost.

Among the decision-making types under partial information, the Data-Driven type is a case in which demand information is not known as in the real situation, if the past demand information is d(n)=[d1,...,dn]. If observed, a rational approach, which is Sample Average Approximation (SAA), can solve the problem by replacing the estimate with the expected value of the sample mean, which can be expressed as Equation (3).

Here, d is demand, and b and h are overstocking cost and overstocking cost. Equation 3 refers to a relational expression for finding an appropriate inventory quantity (q) that minimizes the average of the total expected profit, and (hat)F(n)(·) is the empirical cumulative distribution function of demand obtained from n observation events. it means.

<Simulation modeling>

The basic concept of the model to be implemented can be divided into two types depending on where the goal of inventory management is placed. Models are classified according to whether the goal is to minimize the prediction error (accuracy-based) or to optimize the expected effect (importance-based). The basic structure of the model can be based on the basic causal structure of the inventory management system, the Vensim software based on system dynamics can be used, and the TIME STEP of the simulation model can be set on an annual basis. The causal relationship between the main variables of the basic module can include the scope-access-type decision maker process. In the generated demand (Demand variable), a relationship can be established to update the maximum value (MaxDemand variable) and the minimum value (MinDemand variable) based on the data accumulated during each cycle. When determining the final order quantity (Order Quantity variable), the relationship between the variables can be set to use these two types of demand information. For the basic inventory management flow, inventory is configured to have a positive relationship with supply and a negative relationship with consumption. In addition, the residual amount (remaining amount) for each cycle may be set to have a negative relationship with the inventory amount.

In addition, the expected effect (net profit) and cumulative expected effect (cumulative profit variable) for each cycle by inputting parameter values to express specific inventory importance in inventory importance, overaged cost, and overaged cost , the relationship can be constructed to calculate the cumulative average expected effect (average profit). The two types of models are the prediction error minimization loop (accuracy-based), which has a feedback relationship between the forecast error between the forecast value and the actual demand and the adjustment variable of the final order quantity, and calculates the superiority of the net effect and the cumulative average effect calculated for each period It can be expressed as a system with an expected effect maximization loop (based on importance) that is corrected accordingly. The causal relationship between the additional loop for each type and the final order quantity variable can be set as a graph.

This model can set the above-mentioned data-based decision maker and the range-approach-type basic character in common. Specifically, both model types reflect the reality that it is difficult to know information about the actual demand distribution in advance, so the decision maker decides the order quantity based on the experienced demand information and selects the range information (maximum and minimum) among the partial information of the acquired demand. It has a decision-making mechanism to use. Therefore, the determination formula input to the final order quantity variable of the simulation software may be as shown in Table 1.

[Accuracy-based type final order quantity Equation]
MinDemand+(MaxDemand-MinDemand)*"Inventory Importance(CR)"+IF THEN ELSE(Remaining Amount>0, -ⅠChunk, IF THEN ELSE(Consume<Demand, Chunk, 0))

[Severity-based Type Final Order Quantity Equation]
MinDmand+(MaxDemand-MinDemand)*"adjusted CR“= MinDmand+(MaxDemand-MinDemand)*IF THEN ELSE (XIDZ (ⅡNet Profit,ⅡAverage Profit, 0 ) > = 1 , ( 1 - Ⅱ adjustment C hanged CR ) * Ⅱ Chunk, -Ⅱ adjustment ChangedCR*ⅡChunk)

In the case of accuracy-based, if a forecast-demand error (remaining quantity) occurs in every order cycle, the order quantity is determined by decreasing the order quantity from the previous cycle by a certain unit. On the other hand, in the case of the materiality basis, when the net expected effect from demand information observed at every cycle exceeds the average effect, an additional net effect is expected. formula can be used. The two models set the period of N cycles in common, and the uniform distribution in which the demand variable occurs with the same probability from the minimum of 100 to the maximum of 300, the normal distribution with the same deviation conditions, and the seasonal demand (Seasonal, Sin function utilization) can be set to occur. It may be assumed that the order and receipt of goods occur in a preset cycle unit. In addition, the transport and order delay period may not be considered, and the procurement period may be assumed to be M (reflected in the next cycle after order quantity order). The simulation scenarios can be divided into six cases in consideration of three cases of demand distribution and two cases of inventory importance.

division variable note exogenous variable Demand uniform distribution normal distribution seasonal demand minimum, maximum Accuracy-based & Importance-based Observed demand mean, standard deviation Accuracy-based & Importance-based Chunk adjustment unit order quantity change, order quantity adjustment - Inventory Materiality, Variable Inventory Materiality - parameter purchase price, residual value, price purchase price, residual value, price Excess inventory cost, Excess inventory cost Overage Cost, Underage Cost Inventory Importance (CR) -

The reason for applying more than one demand distribution is to observe the simulation results in the situation of various demand distributions as each dentist handles a lot of dental products. Paying attention to the parameter called inventory importance, in order to consider the effect of the uncertainty on the robustness of the system, it is possible to further perform calibration and sensitivity analysis of the parameter values arbitrarily specified according to the process presented in the Framework for Robust GoalSeeking Design.< Robust Parametric Design>

The field of system dynamics is often criticized for insufficient consideration of robustness in model validity evaluation when compared with other quantitative approaches. In particular, it tends to be more attacked for the effects related to the accuracy of parameter evaluation. Accordingly, it is possible to use a robust variable design methodology capable of calibrating a specific parameter in terms of system dynamics through a method for sufficiently alleviating the influence of variable uncertainty. This methodology includes robust optimization, eigenvalue analysis, and the theory of goal-seeking behavior of decision makers, and is effective in solving problems in mathematical models and alleviating uncertainty of variables. Accordingly, since the above-mentioned model is also expected to be affected by the uncertainty of the variable, it is possible to perform correction on a specific parameter using a robust variable design methodology, and this is the framework for the robust GoalSeeking design described above.

The basic process of the framework aims to find a stable goal-seeking behavior of the system by repeatedly performing parameter correction on the model to be analyzed and performing sensitivity analysis on variables with uncertainty. This process is a process of classifying the variables of the model to be analyzed according to their characteristics, and finding the parameter values that achieve the ideal goal while repeatedly performing adjustments for specific variables.

The progress unit 340 may proceed with the order when the user terminal 100 approves the automatic order form. The user only needs to approve the automatic order form created by the platform of the present invention. The platform of the present invention automatically creates a check and order form without having to organize dental supplies in Excel for inventory management, and the user only needs to press the approve or reject button for this.

Delivery check unit 350, when at least one dental appliance is delivered, it is unique in the user terminal 100 whether the quantity and type in the automatic order form have been delivered with a unique identification code previously mapped and stored in at least one dental appliance It can be checked by scanning or reading the identification code. If a user, for example, an employee who manages inventory at a dentistry forgets to scan due to busy work, the delivery driver's delivery completion event occurs, and if the receipt confirmation is pressed on the user terminal 100, it is added to be included in the inventory list. can do.

The product management unit 360 may collect the price and detailed information of at least one dental product from the at least one seller terminal 400 and assign and store at least one unique identification code. In this case, the at least one seller terminal 400 may sell at least one dental appliance.

The timing determining unit 370, after identifying the period in which the user terminal 100 consumes at least one dental appliance, may set the timing for generating an automatic order form to the number of stocks of the at least one dental appliance. For example, it is assumed that 10 dental supplies are used every 2 weeks, and if the time of 1 remaining is more than 2 weeks, when an order is started at this time, there is a case where the patient A needs to be returned because there are no dental supplies. Accordingly, it is possible to determine the timing of generating the automatic order form in consideration of variables such as weather, delivery strikes, holidays, weekends, and the type of dental supplies to be used for the expected patient.

The implant management unit 380 provides a menu that allows the user terminal 100 to manage the time when the implant was produced, the expiration date, the patient who implanted the implant, and the time when the implant was implanted with respect to the implant among at least one dental appliance. can do.

The expiration date management unit 390 identifies a period in which the user terminal 100 consumes at least one dental appliance, and the remaining date of the expiration date of the at least one dental appliance is shorter than the period in which the at least one dental appliance is consumed. In this case, it is possible to transmit an alarm message to consume at least one dental appliance.

Reservation management unit 391, when inputting a patient for treatment or surgery reservation from the user terminal 100, identify the inventory of at least one dental appliance to be used for the patient for treatment or surgery reservation, and treatment on the reserved date Alternatively, the generation of an automatic order may be determined by calculating a probability that at least one dental appliance to be used for a patient scheduled for surgery is present. There's nothing more detrimental in the short and long term than sending a patient back because they don't have dental supplies on the scheduled date. Accordingly, the reservation management unit 391 may use a model that provides an order quantity for maximizing the expected profit.

<Order quantity to maximize expected profit>

There is a trade-off between ordering too much and ordering too little. It is useful to apply the concept of cost to quantify these trade-offs. Maximizing expected profits is the same as minimizing these costs. Overage cost refers to the cost incurred because one product is ordered but not sold. For example, in the case of product A, when the purchase price is 1.1 million won and the residual value is 900,000 won, Co becomes 200,000 won (110-90). Contrary to this, there is an underage cost and is written as Cu. This is the opportunity cost of not owning one product that could have been sold. Another definition of Cu is the profit from the sale of one product. Overstocking cost is the per-unit opportunity cost of placing fewer orders. In the case of product A, if the selling price is 1.9 million won, Cu becomes 800,000 won. In this case, Co and Cu are concepts of cost per unit, not total cost. The reason for this definition of a unit is that you never know how many units will remain in stock, nor how many units will lose sales opportunities.

From the definitions of overstocking cost and overstocking cost, in order to maximize the expected profit, we need to determine the Q that balances these two costs. The expected loss for a unit of product is the product of the cost of keeping that unit in stock (overstocking cost) multiplied by the probability that the unit will remain in stock. For the Qth unit, the probability is F(Q). In this expression, when demand is less than Q, the difference is left in stock. Therefore, the expected loss is Co×F(Q). On the other hand, the expected profit from one unit of product is the product of the profit from selling one unit (excessive inventory cost) multiplied by the probability that the unit will be sold. This happens when demand is greater than Q. The probability that demand is greater than Q is (1-F(Q)), so the expected profit is Cu×(1-F(Q)). In the end, finding the order quantity Q results in solving the equation when the expected loss of the Qth unit and the expected profit of the Qth unit are the same.

Equation 4 means that the order quantity that maximizes the expected profit becomes the Q value at which the probability that the demand is less than or equal to Q is equal to Cu/(Co+Cu). This ratio, which consists of overstocking cost and overstocking cost, is the above-mentioned inventory importance, and the original term is called Critical Ratio. In the example of product A described above, in order to determine the order quantity that maximizes the expected profit, it is necessary to find the order quantity such that the probability that demand is less than or equal to the order quantity is a certain probability (CR). That is, it can be seen that in the case of product A where Co is 200,000 won and Cu is 800,000 won, CR is 80/(20+80)=0.8. If it is assumed that the information that the distribution of demand for product A has a normal distribution with an average of 3,192 and a standard deviation of 1,181 is publicly available, the z value at which the probability that the value of the random variable is less than or equal to z is 80% is 0.8416 through the standard normal distribution table. can be obtained with Using the z-value and the demand distribution information for product A, it can be seen that the order quantity that maximizes the expected profit Q=μ+z×σ=3,192+0.84×1,181=4,184.

Since the concept of CR is a concept based on cost factors, it is difficult to quantify and apply it to the dental inventory management situation as it is. Accordingly, in one embodiment of the present invention, a variable called a selling price used to calculate a profit through sales is defined as a concept of utility (indicator of satisfaction of desire obtained through consumption of goods). This is to reflect the characteristics of dentistry, which aims to provide medical services to patients through consumption (consumption) of goods rather than earning profits through sales. Therefore, in the above-described order quantity determination algorithm, the terms threshold and expected profit are expressed as inventory importance and expected effect.

The prediction unit 393 collects health and medical big data from at least one public institution server (not shown), and extracts medical expenses, treatment codes, dates and demographic data of patients charged from at least one dentist, At least one dentist learns and verifies the period and quantity of at least one dental appliance consumed by period and patient by at least one artificial intelligence algorithm, and the location of the dentist in the user terminal 100 and demographic data of the patient It is possible to predict at least one dental appliance to be purchased from the user terminal 100 by using . As health and medical big data is recently disclosed, the age, gender, residence, treatment code, diagnosis code, and treatment cost of patients treated at each hospital are provided. In addition, medical field code, treatment classification code, claim form code, fee (action) code, drug code, material cost code, etc. Since raw materials and treatment materials are all disclosed, the location of each hospital, gender, age, residence, etc. of each hospital can be learned from big data to predict when and how many dental products a hospital will use. This may not be accurate as an estimate, but it can improve the accuracy of inventory management.

Hereinafter, an operation process according to the configuration of the inventory management service providing server of FIG. 2 will be described in detail with reference to FIGS. 3 and 4 as an example. However, it will be apparent that the embodiment is only one of various embodiments of the present invention and is not limited thereto.

Referring to FIG. 3 , (a) the inventory management service providing server 300 collects dental product prices, types, detailed information, etc. from at least one seller terminal 400 to build a seller pool, and assigns a unique identification code. to create a database. And, (b) the inventory management service providing server 300 receives the dental name, location, dental supplies and inventory quantity from the user terminal 100 or receives a pre-stored order history to set the inventory quantity. (c) Then, the inventory management service providing server 300 compares the set stock quantity with the current quantity to generate an automatic order form, and when receiving approval from the user terminal 100, an order is placed. And, as shown in (a) of Figure 4 (a), by extracting a product with an expiration date and guiding it to the user terminal 100, it helps to exhaust it quickly or sell it at a low price, and as shown in (b), the QR code in the user terminal 100 By displaying augmented reality content on the object corresponding to the product with the expiration date as an AR marker, it is possible to identify which product is the product with the expiration date approaching without having to scan the QR code one by one. In addition, (c) using artificial intelligence to learn and verify health and medical big data to create a list of dental supplies to be consumed, and to manage the treatment schedule as shown in (d), order quantity for maximizing expected profit, that is, excessive inventory It allows the order quantity to be calculated by considering the overhead cost and the underage cost.

Such matters not described with respect to the method of providing the dental supplies inventory management service of FIGS. 2 to 4 are the same as those described for the method of providing the dental supplies inventory management service through FIG. 1 or can be easily inferred from the described contents Therefore, the following description will be omitted.

5 is a diagram illustrating a process in which data is transmitted/received between respective components included in the dental supplies inventory management service providing system of FIG. 1 according to an embodiment of the present invention. Hereinafter, an example of a process in which data is transmitted/received between each component will be described with reference to FIG. 5, but the present application is not limited to such an embodiment, and the example shown in FIG. 5 according to the various embodiments described above will be described. It is apparent to those skilled in the art that the data transmission/reception process may be changed.

Referring to FIG. 5 , the inventory management service providing server stores at least one unique identification code to be mapped to at least one dental appliance ( S5100 ).

And, the inventory management service providing server, when setting the inventory quantity for at least one dental product in the user terminal, and stores the unique identification code and the inventory quantity of the user terminal, at least one dental product (S5200), of the user terminal When at least one dental appliance does not satisfy the preset stock quantity, an automatic order form is generated to satisfy the preset stock quantity and transmitted to the user terminal (S5300).

In addition, the inventory management service providing server proceeds with an order when the user terminal approves the automatic order form (S5400).

The order between the above-described steps (S5100 to S5400) is only an example, and is not limited thereto. That is, the order between the above-described steps ( S5100 to S5400 ) may be mutually changed, and some of these steps may be simultaneously executed or deleted.

Matters not described with respect to the method of providing the dental supplies inventory management service of FIG. 5 are the same as those described for the method of providing the dental supplies inventory management service through FIGS. 1 to 4 or can be easily inferred from the described contents Therefore, the following description will be omitted.

The method for providing a dental appliance inventory management service according to an embodiment described through FIG. 5 may also be implemented in the form of a recording medium including instructions executable by a computer, such as an application or program module executed by a computer. . Computer-readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. Also, computer-readable media may include all computer storage media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data.

The method for providing a dental supplies inventory management service according to an embodiment of the present invention described above may be executed by an application basically installed in a terminal (which may include a program included in a platform or an operating system, etc. basically mounted on the terminal). Also, it may be executed by an application (ie, a program) directly installed in the master terminal by the user through an application providing server such as an application store server, an application, or a web server related to the corresponding service. In this sense, the method for providing a dental supplies inventory management service according to an embodiment of the present invention described above is implemented as an application (ie, a program) installed by default on a terminal or directly installed by a user, and can be read by a computer such as a terminal. It can be recorded on a recording medium.

The foregoing description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and likewise components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention. do.

Claims (11)

a user terminal for setting the inventory quantity of at least one dental appliance, and inputting whether to approve when an automatic order form for the at least one dental appliance is generated and then received; and
Databaseization unit for storing at least one unique identification code to be mapped to at least one dental appliance, when setting the inventory quantity for at least one dental appliance in the user terminal, the user terminal, the uniqueness of the at least one dental appliance Inventory setting unit for storing identification code and inventory quantity, when at least one dental appliance of the user terminal does not satisfy the preset inventory quantity, generates an automatic order form to meet the preset inventory quantity and transmits it to the user terminal Automatic order form generation unit, a processing unit that proceeds with an order when the user terminal approves the automatic order form, when the at least one dental product is delivered, a unique identification code that is pre-mapped and stored in the at least one dental product an inventory management service providing server including a delivery check unit to check whether the quantity and type in the automatic order form have been delivered by scanning or reading the unique identification code in the user terminal;
includes,
The delivery check unit,
A dental supplies inventory management service providing system, characterized in that when a delivery completion event of the delivery driver occurs and receipt confirmation is selected in the user terminal, the quantity and type in the automatic order form are added to be included in the inventory list.
delete The method of claim 1,
The dental supplies inventory management service providing system,
at least one seller terminal selling the at least one dental appliance;
Dental supplies inventory management service providing system, characterized in that it further comprises.
4. The method of claim 3,
The inventory management service providing server,
a product management unit that collects the price and detailed information of at least one dental product from the at least one seller terminal and assigns and stores at least one unique identification code;
Dental supplies inventory management service providing system, characterized in that it further comprises.
The method of claim 1,
The unique identification code is a one-dimensional barcode including a barcode or a two-dimensional barcode including a QR code Dental supplies inventory management service providing system, characterized in that.
The method of claim 1,
The inventory management service providing server,
a timing determiner configured to set a time point for generating the automatic order form to the number of stocks of the at least one dental appliance after determining a period in which the user terminal consumes at least one dental appliance;
Dental supplies inventory management service providing system, characterized in that it further comprises.
The method of claim 1,
The inventory management service providing server,
an implant management unit for providing a menu that allows the user terminal to manage the time when the implant was produced, the expiration date, the patient who implanted the implant, and the time when the implant was implanted with respect to the implant among the at least one dental appliance;
Dental supplies inventory management service providing system, characterized in that it further comprises.
The method of claim 1,
The inventory management service providing server,
The user terminal determines a period of consuming the at least one dental appliance, and when the remaining date of the expiration date of the at least one dental appliance is shorter than the period of consuming the at least one dental appliance, the at least one dental appliance Expiration date management unit for sending an alarm message to consume;
Dental supplies inventory management service providing system, characterized in that it further comprises.
The method of claim 1,
The inventory management service providing server,
When a patient whose treatment or surgery is scheduled is inputted from the user terminal, the inventory of at least one dental appliance to be used for the patient for which the treatment or surgery is reserved is identified, and the patient whose treatment or surgery is scheduled on the scheduled date is identified. a reservation management unit that calculates a probability that at least one dental appliance to be used exists and determines the generation of the automatic order form;
Dental supplies inventory management service providing system, characterized in that it further comprises.
The method of claim 1,
The at least one dental appliance is a dental appliance inventory management service providing system, characterized in that it includes at least one equipment, instrument and material used in dentistry.
delete

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