JP2009146330A - Escrow system for building construction cost - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an escrow system for building construction expense, capable of surely protecting a building owner's deposit by enhancing the credit for adequacy of the time or amount of piecework payment. <P>SOLUTION: The system includes a plurality of communication terminals 3 set in each organization, and a server 2 including a format management part 25 for providing a management format screen. The server 2 further includes a storage part 23 which preliminarily stores ID registration information of each organization, a mail transmitting part 26, and an approval means capable of transmitting approval signal to communication terminals 3a, 3b and 3c. The management format screen includes a performance report column G to which only the inspection organization communication terminal 3c can input. Only when the server 2 receives information of a performance report input to the performance report column G and approval signal from the inspection organization communication terminal 3c, further receives approval signal from the building owner communication terminal 3b, and thereafter receives approval signal from the head office communication terminal 3a, the server 2 transmits a payment scheduled day to a credit organization communication terminal 3f from the mail transmitting part 26, and displays the payment scheduled day on the management format screen. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an escrow system when a building owner pays a construction fee for a building.

  Conventionally, when building a building, the contractor and the contractor who undertakes the construction work make a contract for the construction work, and based on the contract, the contract money, the intermediate money for completing the milestone process, and the completion of the building It is common for payments to be made multiple times, such as the final payment of the time. During the construction of the building, the building is the property of the contractor who has undertaken the construction. After the building is completed, ownership is transferred to the owner by registering the transfer of ownership. For this reason, when building a building with a loan, such as using a loan system, usually the loan is executed after setting the collateral of the financial institution (usually the guarantee company of the loan financial institution) as the loan source. Until the building as collateral was completed, the loan could not be used to pay for the construction. In other words, there is a problem that a separate connection loan is necessary in addition to the aforementioned loan when paying before the building is completed, such as contract money and intermediate money.

  In addition, as mentioned above, the owner must pay a part of the construction cost as contract money or intermediate money before the completion of the building, but if the contractor goes bankrupt during construction, the construction cost paid It took a considerable risk that it was very difficult to recover. In addition, the owner often does not have expertise in construction, and the progress of the construction is also told by the construction office and the contractor. There was a strong tendency to overpay.

On the other hand, depending on the financial situation of the owner, the contractor may be worried about the collection of accounts receivable, and payment will be made for the purchase of materials as soon as the construction is started. The construction cost is paid together with the design cost to the construction office and the main contractor that supervises the construction, and each construction cost is paid from the construction office etc. to each construction company. The cash flow until receiving the money was hard. Many of the subcontractors at the end were small companies, and this cash flow was a big problem, and they often went bankrupt because they could not raise cash.
In addition, when the contractor at the end went bankrupt, the building owner had to be affected by the extension of the construction period.

  In order to solve such problems, the owner is a third-party institution, such as receiving a loan from a partner bank before the start of construction, such as when contracting construction work, etc. Various so-called escrow systems for building construction costs are proposed, in which construction fees are deposited in advance with a financial institution (trust organization) and pooled, and then intermediate fees are paid according to the progress of construction. It came to be.

  As such a conventional escrow system for building construction costs, for example, a price payment system for custom houses described in Patent Document 1 is disclosed. The payment system for a custom-built house described in Patent Document 1 is that the customer, the building owner, deposits the entire construction fee for the building (custom-built house) in a financial institution, and the financial institution has deposited the entire deposit. After receiving this notification, the contractor starts construction, and when it reaches a certain stage, the contractor issues a payment request, and first-class architects entrusted with the survey visit the site to investigate the progress of the construction. If it is determined that the predetermined stage has been reached, the survey result to that effect is entered into the payment system, and based on the entered survey result, the system instructs the financial institution to pay the contractor a predetermined amount. It is a system.

  As another escrow system for building construction fees, for example, a construction fund management system described in Patent Document 2 is disclosed. This construction fund management system described in Patent Document 2 includes a customer database, a process database, a payee database, a trust fund database, a reception registration means for accepting a use application, process information and / or payment schedule information, and an estimate. Based on the verification result, the verification means for storing the application for use, the process creation means for storing process information, the payment destination registration means for storing payment schedule information, and the total amount of the loan amount and the own funds for the owner Receiving a payment instruction for building funds in the process of the field report based on the field report and the process information and / or the payment schedule information, and receiving the payment instruction And a payment instruction means for transmitting the payee to the trust bank.

  However, all of these conventional escrow systems for building construction costs are a mechanism in which intermediate money is paid from deposits in accordance with the progress of construction, but in the payment system for custom houses described in Patent Document 1, If a payment instruction is given from a first-class architect or the like who has been asked to investigate, or if a payment instruction is issued from the system administrator or the inspector terminal in the construction fund management system described in Patent Document 2, the construction fee is entrusted As a result, there was a problem that the first-class architects, managers, and inspectors were blindly trusted by the owner who had no knowledge about architecture. In reality, with these systems, it seems that first-class architects and managers go to the owners' homes, etc., to meet directly and get approval, but this method increases the number of properties. When the construction site and the place where the owner lives are separated, there is also a problem that it is expected that it cannot be handled. In addition, since security aspects such as terminal authentication and personal authentication are not considered at all, it is not possible to eliminate fraudulent acts such as pretending to be a first-class architect, administrator or inspector, etc. From the point of view of protecting the money (deposits), it was very uneasy.

JP 2001-331738 A JP 2003-196669 A

  Therefore, the present invention solves the problems of the above-mentioned conventional ones, increases the confidence in the timing of payment of the volume of intermediate money and the appropriateness of the amount of money, and reliably protects the deposits of the owner and obtains approval. The purpose is to provide an escrow system for building construction costs that can save labor and time that must be met directly. Another object of the present invention is to provide an escrow system for building construction costs that can appropriately prevent fraudulent acts such as impersonating a payment by introducing an authentication system.

  In order to solve the above-mentioned problem, an escrow system for a building construction fee according to the invention described in claim 1 is an escrow system when a building owner pays a construction fee for a building, and a management format screen for an escrow service is provided. A server to be provided, and a plurality of communication terminals capable of bidirectional communication with the server via an electric communication line. The communication terminal includes a headquarters for operating and managing the system, an architect, From the inspection organization that inspects and reports whether the progress has reached the specified volume, the building office that performs the design and supervision of the building, each contractor that performs the construction, and the commissioned construction fee In accordance with the volume report of the inspection organization, it is installed respectively in the trust agency that pays the building office and / or the construction contractor for each predetermined amount of money for each milestone process. The server provides a storage unit in which ID registration information of the owner, building office, each contractor, inspection organization, trust organization is stored in advance, and a management format screen that can be viewed from each communication terminal. A format management unit, and a mail transmission unit that individually transmits information to each communication terminal by e-mail, and a communication terminal installed in a headquarters, a building owner, and an inspection organization among the plurality of communication terminals. Is provided with an approval means capable of transmitting an approval signal, and the management format screen is provided with a volume report column in which volume report information can be input only from the communication terminal of the inspection agency. The volume report information entered in the volume report column from the communication terminal and the approval signal by the approval means provided in the communication terminal of the inspection organization are received by the server, and the building An approval signal by the approval means provided in the building owner's communication terminal is received by the server from the communication terminal of the building, and then an approval signal by the approval means provided in the communication terminal of the headquarters is sent to the server from the communication terminal of the headquarters. For the first time when it is received, the date of payment is transmitted from the mail transmission unit of the server to the communication terminal of the trust organization, and in the management format screen so that it can be confirmed from the communication terminal of the construction office and the contractor. The scheduled payment date is displayed.

  The building construction price escrow system according to the invention described in claim 2 is the building construction price escrow system according to claim 1, wherein the server communicates with each server when accessing and logging in to the server. First authentication means for determining whether or not to permit login by performing terminal authentication, and whether or not the communication terminal is authenticated to allow the approval signal to be transmitted before the approval signal is transmitted by the approval means And a second authentication unit for determining whether or not the management format screen is displayed on the communication terminal only when it is determined that the login is permitted by the first authentication unit, and the second authentication unit permits The approval signal can be transmitted by the approval means only when it is determined.

  The building construction price escrow system according to claim 3 is the building construction price escrow system according to claim 2, wherein the approval means is installed in the headquarters, the building owner, and the inspection organization. An approval button that can be clicked or pushed only from a communication terminal is provided, and the approval signal is transmitted when the approval button is clicked or pushed.

  The building construction price escrow system according to the invention described in claim 4 is the building construction price escrow system according to claim 3, wherein the server refers to the ID registration information of the storage unit for each registration ID. A password issuing unit that issues a password to the password, and a password verification unit that compares and compares the password input from the communication terminal and the password stored in the storage unit, and the management format screen includes: An approval password input field for inputting an approval password is provided in the vicinity of the approval button and the approval button. In the first authentication means, a login password stored in the storage unit in the password verification unit, and a login password The password entered from each communication terminal is compared and verified to determine whether to allow login. In both the second authentication means, the password entered in the approval password entry field and the authorization password stored in the storage unit are compared and verified in the password verification unit, and the approval button is clicked or pushed. It is characterized by determining whether to permit or not.

  The building construction price escrow system according to the invention described in claim 5 is the building construction price escrow system according to claim 4, wherein the password issuing unit receives a new password each time the approval button is clicked or pushed. The mail transmitting unit transmits the new password to each of the communication terminals installed in the headquarters, the building owner, and the inspection organization.

  The building construction price escrow system according to the invention described in claim 6 is the building construction price escrow system according to any one of claims 1 to 5, wherein the ID registration information of the storage unit includes the construction work of the owner. Information related to the trust account of the trust organization in which the price is deposited and information related to the account of the construction office and / or the contractor are registered, and determined for each milestone process on the scheduled payment date A predetermined amount is settled from the trust account and paid to the building office and / or the contractor's account.

  The present invention is as described above, and according to the first aspect of the present invention, an approval signal can be transmitted to a communication terminal installed at a headquarters, a building owner, or an inspection organization among a plurality of communication terminals. The management format screen is provided with a volume report column that can be used to input volume report information only from the communication terminal of the inspection organization, and the volume entered in the volume report column from the communication terminal of the inspection organization The report information and the approval signal by the approval means provided in the communication terminal of the inspection organization are received by the server, the approval signal by the approval means provided in the communication terminal of the building owner is received by the server from the communication terminal of the building owner, After that, only when the server receives an approval signal from the approval means provided at the headquarters communication terminal from the headquarters communication terminal, the server's mail transmission section pays to the communication terminal of the trust organization. As the fixed date is sent, the scheduled payment date is displayed on the management format screen so that it can be confirmed from the communication terminal of the construction office and the contractor. That is, the volume report by the inspection organization → approval of the building owner → approval of the head office Since the payment date is sent to these communication terminals for the first time by going through the flow, the owner has no knowledge about the building, or the owner has mistakenly approved it. Even in such a case, the headquarters checks the report of the inspection organization and does not accept payment unless it is approved. Can be protected. The volume report column on the management format screen allows the input of volume report information only from the communication terminal of the inspection organization, and the approval means is an approval signal only from the communication terminals installed at the headquarters, the building owner and the inspection organization. Can be sent, so fraudulent acts such as pretending to be a building owner and giving payment instructions cannot be performed. Therefore, also from this point, the deposit of the owner can be properly protected. Since these systems are realized through a network, there is no restriction of having to meet directly when obtaining approval from the owner as in the prior art, and labor and time can be saved.

  According to the second aspect of the invention, the management format screen is displayed on the communication terminal only when it is determined that login is permitted by the first authentication means, and only when it is determined that permission is permitted by the second authentication means. Since the approval signal can be transmitted by the approval means, that is, by providing double authentication means, the first authentication means should be passed by an unauthorized means, and the management format screen is changed to something other than a predetermined communication terminal. Even if it has been displayed, the second authentication means authenticates again and restricts the approval signal from the approval means, so that in addition to the above effects, fraudulent acts such as impersonation can be prevented, Appropriately protect the owner's deposit.

  According to the invention described in claim 3, the approval means is provided with an approval button that can be clicked or pushed only from the headquarters, the building owner, and the communication terminal installed in the inspection organization. Since the approval signal is transmitted when pushed, that is, the simple configuration that the approval by the approval means simply clicks or pushes the approval button, the security of the escrow system is inexpensive, while ensuring security safety, And it can make it easy for anyone to operate.

  According to the invention of claim 4, the server stores the password issuing unit that issues a password for each registered ID with reference to the ID registration information of the storage unit, the password input from the communication terminal, and the storage unit. A password verification unit for comparing and verifying the password, and the management format screen is provided with an approval button and an approval password input field for inputting the approval password in the vicinity of the approval button. In the authentication means, the password verification unit compares the login password stored in the storage unit with the password input from each communication terminal at the time of login to determine whether to permit login, In the second authentication means, the password entered in the authorization password input field in the password verification unit and the authorization stored in the storage unit Since it is judged whether or not the approval button is clicked or pushed by comparing and collating with the password, that is, since the authentication is performed by the password, in addition to the above effect, a special reading means for authentication separately (For example, reading means for vein authentication etc.) It is possible to secure the security of the escrow system for building construction costs with an inexpensive configuration and issued when registering the ID of each terminal Even if the password is leaked, the management format screen can only be displayed on the communication terminal, and the approval button for approval cannot be clicked or pushed unless another password is entered. As a result, security can be further enhanced.

  According to the invention described in claim 5, since the password issuing unit issues a new password every time the approval button is clicked or pushed, in addition to the above effect, the password enabling the approval button to be clicked or pushed leaks. Therefore, the security can be further improved. In addition, since the e-mail transmission unit transmits this new password to the headquarters, the building owner, and each communication terminal installed in the inspection organization, it can automatically notify the newly issued password, as well as the Internet Web, etc. Since the password is notified by e-mail instead of the management format screen accessible from the public network, the password can be notified more safely.

  According to the invention described in claim 6, in addition to the above effect, a predetermined amount determined for each milestone process on the scheduled payment date is settled from the trust account and paid to the account of the construction office and / or the contractor. The construction fee can be paid automatically, saving labor and time.

An embodiment of the present invention will be described with reference to the accompanying drawings.
In addition, the same components are commonly used in the drawings, and the same reference numerals are used, and the same reference numerals are used even when not shown.

(Escrow system configuration)
FIG. 1 is a configuration explanatory view showing a schematic configuration of an escrow system for a building construction fee according to an embodiment of the present invention. As shown in the figure, an escrow system 1 for building construction costs includes a server 2 having a function as a Web server that provides a management format screen for an escrow service on a Web of a public network such as the Internet, and the server 2 It is mainly composed of a plurality of communication terminals 3 capable of bidirectional communication (accessible) through an electric communication line.

  This server 2 is composed of a CPU or the like and executes various commands according to a program, and an information exchange between the control means 20 and the public network, such as conversion of communication standards between the control means 20 and the public network. Transmission / reception means 21 for mediating the information and a storage section 23 having a storage means 22 such as a hard disk drive accessible from the control means 20 and storing various information such as ID registration information. Yes. In addition, the server 2 is also provided with a first authentication unit and a second authentication unit (not shown) that perform terminal authentication of each communication terminal 3.

  The control unit 20 includes a format management unit 25 that manages and provides a management format screen, a mail transmission unit 26 that individually transmits information to each communication terminal 3 via the transmission / reception unit 21, and a storage unit 23. The password issuing unit 27 that issues a password for each registered ID with reference to the ID registration information stored in the ID, and the password input from each communication terminal 3 and the password stored in the storage unit 23 are compared and verified. And a password verification unit 28.

  The first authentication means determines whether or not to permit login by authenticating each communication terminal 3 when accessing the server 2 from each communication terminal 3 and logging in to the management format screen. The authentication means authenticates the communication terminal 3 again before clicking an approval button on the management format screen, which will be described later, and determines whether or not to permit the click of the approval button.

In the illustrated embodiment, each communication terminal 3 is a general PC (personal computer), and can access the server 2 through an electric communication line. The telecommunications line may be interactive regardless of wired or wireless, that is, the server 2 and each communication terminal 3 need only be capable of bidirectional communication via a public network such as the Internet. Further, each communication terminal 3 is not limited to a PC, and may be an electronic device such as a PDA (Personal Digital Assistants) or a mobile phone, that is, information can be input and stored electromagnetically. Any configuration capable of bidirectional communication of information with the server 2 may be used.
Each communication terminal 3 and server 2 can be directly connected by a wired line such as a LAN cable without going through a public network.

  As shown in the figure, the communication terminal 3 is located at the headquarters, the building owner, the inspection organization, the construction office, each contractor, and the trust organization (hereinafter referred to as each organization). 3a, the building owner communication terminal 3b, the inspection organization communication terminal 3c, the construction office communication terminal 3e, a plurality of contractor communication terminals 3d, and the trust organization communication terminal 3f. The installation location of the server 2 is preferably the headquarters, but the installation location is not particularly limited as long as the server 2 is under the management of the headquarters. Further, the headquarters communication terminal 3a installed in the headquarters can also be used as the server 2.

(Description of each organization)
Here, the owner refers to the person who ordered the building work and the owner after the building is completed (may be a non-natural person such as a corporation), and the headquarters operates and manages the escrow system 1 It is an institution. In addition, the headquarters should have expertise in architecture and be able to give advice to the owner regarding building work. In some cases, the headquarters will enter into a coordinating contract with the owner and a partner contract with the architecture office. The headquarters may introduce the building office and each contractor to the building owner, compare the estimates of the building office, etc., and have the building owner select it.

  An inspection organization is an organization that inspects whether or not the progress of construction has reached a predetermined volume for each milestone process established before the start of construction, and reports to at least the three parties: headquarters, building owner, and building office It is. Therefore, it is desirable to be in a neutral position that is neither the construction side (architecture office or contractor) nor the orderer side (building owner or headquarters), and is a private building confirmation inspection organization, especially a designated confirmation inspection organization designated by the Minister of Land, Infrastructure, Transport and Tourism. If so, it is preferable because the reliability is increased. An architectural office is an organization (office) that performs building design and construction supervision, and a contractor refers to each construction of a building (for example, foundation work, waterproof work, construction work, finishing work, facility work, This refers to an organization (such as a company) that implements various types of construction such as electrical work. Also, in general, an architecture office often concludes a contract for the entire construction of the building with the owner, and there are many cases where a subcontract is contracted between the architecture office and each contractor. In order to execute the escrow system according to the present embodiment, the construction office, the inspection agency and the building contractor make a three-party contract for the payment of the volume, and the construction office and each construction contractor conclude a construction supervision contract. preferable.

  A trust institution has an account of a financial institution such as a trust bank, and the full amount of construction money determined in advance by contracts, etc., is deposited in the account before the start of construction, and is determined for each predetermined milestone process from the deposit. This is an institution that has signed a trust agreement with the owner to pay to a given account for a certain amount. Here, the payee is the account of the building office if the building office has a contract with the owner of the construction, and if the building office only performs design and construction supervision. The amount of the construction work is paid to the account of the contractor who undertakes the entire construction, and the amount of the fee for the design and construction supervision is paid to the account of the construction office. This deposit may be of the owner's own funds alone, but may be borrowed from a financial institution that provides a loan before the construction starts, and may include the borrowed money. In that case, the owner needs less self-financing and it is easier to place an order for the building.

(Advance preparation)
First, the advance preparation will be described with reference to FIG. 1. The ID registration information of each organization of the headquarters, the building owner, the inspection organization, the construction office, each contractor, and the trust organization is stored in the server 2 for each construction property. The information is input to the ID registration information database on the hard disk drive 22. At this time, the input device may be the head office communication terminal 3a or the server 2 itself. This ID registration information includes all the information of each institution necessary for the construction of the building. For example, a) name (name if natural person), b) address, c) telephone number (company) E) e-mail address (for contact from server 2), e) name of person in charge, f) account number (for automatic remittance), g) login password, h) authorization password, etc. It is done.

  When the ID registration information of each organization is input to the database, a registration ID is assigned to each organization of each construction property. This registration ID may be automatically issued by the server 2 using a random number function or the like and stored in the ID registration information database, or an e-mail address or the like may be used as it is. That is, the registration ID may be determined for each organization of each construction property by some method. When a registration ID is allocated, this registration ID is also stored in the ID registration information database, and a login password corresponding to the registration ID is issued by the password issuing unit 27 and stored in the ID registration information database. At this time, it is convenient to save time and labor by sending the issued login password by e-mail by the mail sending unit 26. However, instead of automatically issuing the login password by the password issuing unit 27, each institution decides the login password by itself, notifies the headquarters, and inputs it to the ID registration information database from the headquarters communication terminal 3a. Good.

(Operation until the management format screen is displayed)
Next, the operation of the escrow system 1 will be described. First, operations from each communication terminal 3 to accessing the site of the server 2 and displaying a management format screen corresponding to each communication terminal will be described with reference to FIGS. FIG. 2 is a flowchart showing a process until a management format screen is displayed in the escrow system of FIG. 1, and FIG. 3 is an explanatory diagram showing an example of a login screen of the escrow system of FIG. The case of accessing from the communication terminal 3c of the inspection organization will be described as an example, but the same applies to the case of accessing from another communication terminal.

  As shown in FIG. 2, first, the server 2 is accessed from the inspection organization communication terminal 3c via the public network by searching a site provided by the server 2 using a general search site or the like (step) S1). Then, the server 2 transmits information on the login screen (see FIG. 3) to the inspection body communication terminal 3c (step S2), and the inspection body communication terminal 3c displays the login screen on a display means such as a monitor (step S3). ).

(Login screen)
As shown in FIG. 3, an ID input field A for inputting a registration ID and a login password input field B for inputting a login password are provided on the login screen, and a login button C is provided in the vicinity thereof.

  Returning to FIG. 2, the continuation of the flowchart will be described. In the inspection organization communication terminal 3c on which the login screen is displayed, the registration ID assigned to the inspection organization (each organization) is input to the ID input field A, and The notified login password is entered in the login password input field B (step S4). Next, the login button C is clicked (step S5). Then, the registration ID and the login password stored in the temporary memory such as the cache memory of the inspection body communication terminal 3c are transmitted to the server 2 (step S6).

  Next, in the server 2, the password verification unit 28 (see FIG. 1) as the first authentication means is entered in the ID input field A (see FIG. 3) with reference to the ID registration information database in the storage unit 23. A login password stored in the corresponding ID registration information database is searched from the registered ID, and is compared with the login password entered in the login password input field B (step S7). The information on the format screen (see FIG. 4) is transmitted to the inspection organization communication terminal 3c (step S8). If they do not match, the information on the login screen is transmitted again (step S2).

  Then, the inspection organization communication terminal 3c displays the management format screen on the display means (step S9). Although not shown, it is preferable in terms of security to configure so that access from the communication terminal to the server 2 is denied when Steps S2 to S7 are repeated a predetermined number of times, for example, three times. Thus, since the management format screen is displayed after the communication terminal is authenticated by the first authentication means, there is less possibility that information included in the management format screen is browsed and misused by an unspecified number of people. For this reason, it is particularly effective from the viewpoint of protecting the personal information of the builder.

(Management format screen)
Next, the management format screen will be described. FIG. 4 is an explanatory diagram showing an example of the management format screen of the escrow system of FIG. As shown in FIG. 4, a photo column D, which is a space to which an image file of a recent photo is attached, is provided at the upper left of the management format screen so that the progress of the construction can be seen at a glance. In the photo column D, the name of the site and the shooting date of the recent state photo are displayed. In the lower column, a list column E is provided, and the name of the design office, the name of each construction store (construction company), and the like are described. A communication column F is provided at the top of the right column so that communication items such as date and time of on-site attendance, communication items such as questions and reports can be described.

  A volume report column G is provided below the communication column F. This volume report column G will be described in detail later, but the construction name that is the volume inspection item (see also Fig. 5) is written on the left side, the right side is the check sheet, and the inspection agency Go to the site, investigate the volume of inspection items, click the (□) part on this volume report column G, and a check mark (Le) will be entered, so that you can report on the volume report column G It has become.

  In addition, a confirmation button H is provided in the vicinity (lower right) of the volume report column G, and the contents entered in the volume report column G and the communication column F are entered by clicking the confirmation button H. The communication terminals 3a, 3b, and 3c (see FIG. 1) are stored in a temporary storage memory such as a cache memory.

  Below the volume report column G and the confirmation button H, a comment column I is provided. In this comment field I, important communication items from the headquarters such as the payment date of the volume payment to be paid from the trust organization to the construction office and each contractor are output and displayed by the server 2 (headquarter communication terminal 3a). Including the case of input from Further, when there is no particular matter to be communicated, it is blank or the comment column I itself is not displayed.

Under the volume report column G and the confirmation button H, an approval password input column J for inputting an approval password, a transmission button K thereof, and an approval button L as an approval unit are provided. The approval button L is configured to send an approval signal to the server 2 when clicked. As will be described later, this approval button can be clicked only from the headquarters, the building owner, and the communication terminals (3a, 3b, 3c) installed in the inspection organization. In other words, the management format screen is configured so that the approval button L cannot be clicked unless an approval password is entered and allowed by the second authentication means, so that only the inspection organization, the building owner, and the headquarters that are notified of the approval password. The contents cannot be changed. For this reason, even if the site is illegally accessed and the management format screen can be browsed, the contents cannot be changed. Note that the approval button L is not provided on the management format screen, but may be provided on the device itself of the communication terminal (3a, 3b, 3c) so that an approval signal can be transmitted by pushing the approval button. Is possible.
In addition, an indicator M for displaying a communication status of transmission / reception between the communication terminal 3 and the server 2 is also provided. This indicator M is displayed only during transmission (reception) of information.

  Next, the volume report column G will be described in detail. FIG. 5 is an explanatory diagram showing an example of the volume report column. As shown in FIG. 5, the first to fourth times are displayed on the left side of the volume report column G. This represents the number of volume inspections, and the process (basic inspection, structure, etc.) displayed beside the number of times is a knot process. When this volume inspection is completed, the next milestone process is displayed. That is, when the first volume inspection is completed and the inspection organization clicks the aforementioned approval button L for reporting, the second column is displayed. That is, in the illustrated case, it represents the fourth volume inspection.

  The work name (reinforcement work, temporary work, etc.) written next to the number of times such as “first time” is a work amount inspection item. In addition, the “inspection” column of the check sheet on the right side of the entire volume report column G indicates whether or not the work displayed in the volume inspection item is subject to volume inspection. Indicates that the construction in the left column where (re) is displayed is the inspection target for the volume inspection. For example, the check mark is not input when there is a construction work provided by the building owner or when the foundation reinforcement work is unnecessary.

If a check mark is entered in the “All Items Completed” column, it means that the work in the left column has been completed. If a check mark is entered in the “Partial” column, the left column This means that some construction work has not been completed. In other words, constructions for which a check mark has been entered for “partially remaining” are excluded from the volume payments paid at the end of each volume inspection. The “Photo” column indicates whether or not there is a photo of the construction in the left column. Regardless of direct volume inspection, if the inspection organization accepts the completion of the construction even if the “Photo” column is not checked. A check mark is entered in the “All Items Completed” column, and the construction in the left column is eligible for payment.
In the case of this illustration, the number of volume inspections is four, but it may be determined by a meeting or the like before the start of construction, and of course, it differs depending on the scale of construction and the type of building. In addition, the constructions listed in the volume inspection items differ depending on the property. These should be determined when paying a contract with the owner of the building, an inspection organization, and an architectural office.

  Next, the approval process when approving from the inspection terminal, the building owner, and the communication terminal installed at the headquarters will be described. FIG. 6 is a flowchart showing an approval process of the escrow system according to the present embodiment. This flowchart shows a series of flow from when a management format screen is displayed on each communication terminal (any one of 3a, 3b, 3c) until a new approval password is received.

  As shown in FIG.6 and FIG.4, first, the communication items and the volume report information are input from the respective communication terminals (3a, 3b, 3c) to the communication column F and the volume report column G (step S10). Then, after confirming the input content, the confirmation button H is clicked (step S11). Then, the input information is temporarily stored in a temporary memory such as a cache memory of each communication terminal (3a, 3b, 3c) (step S12). Next, the approval password notified in advance by e-mail or the like is input into the approval password input field J (step S13), and the send button K is clicked (step S14). Then, the password input in the approval password input field J is transmitted from each communication terminal (3a, 3b, 3c) to the server 2 (step S15). In the server 2, the password verification unit 28 (see FIG. 1) in the second authentication means compares and verifies the transmitted password with the approval password stored in the ID registration information database of the storage unit 23 (step S16) If they match, a signal to permit the click of the approval button L is transmitted from the server 2 (step S17). If they do not match, a signal not permitting is transmitted, the password input in the approval password input field J of the communication terminal is erased, and an instruction to prompt re-input is given (step S18). Although not shown, it is preferable in terms of security that the access from the communication terminal to the server 2 is denied when Steps S13 to S18 are repeated a predetermined number of times, for example, three times.

  By clicking the approval button L that can be clicked in this way (step S19), an approval signal is transmitted together with the information stored in the temporary storage memory (step S20). Then, when the server 2 receives this information, the contents of the communication column F and the volume report column G on the management format screen are updated based on the transmitted information (step S21). In addition, when input is made to the volume report column G from the communication terminals (3a, 3b) installed at the building owner and the headquarters, when the server 2 updates the contents of the management format screen in this step S21, Information is discarded. That is, the volume report column G can be input only from the inspection organization communication terminal 3c. Further, the approval button L described above may be displayed on the management format screen only when it is permitted by the authentication of the second authenticating means so that it can be clicked.

  Next, the server 2 issues a new approval password at the password issuing unit 27 (see FIG. 1), and stores this new approval password in the ID registration information database of the storage unit 23 (step S22), and the mail transmission unit At 26, the new approval password is sent to each communication terminal by e-mail and notified (step S23).

  As described above, in the approval process of the escrow system according to the present embodiment, it is updated each time an approval password is approved from the inspection terminal, the building owner, and the communication terminal installed at the headquarters, and separately sent by e-mail. Since the new approval password is transmitted, the approval password is a one-time password, and there is very little possibility that the approval password will be leaked. For this reason, fraudulent acts can be appropriately prevented and the deposits of the owner can be reliably protected.

  Next, the payment process of the escrow system according to the present embodiment will be described. FIG. 7 is a flowchart mainly showing a payment process of the escrow system according to the present embodiment. This flowchart shows the general flow from when the inspection organization conducts the volume inspection and reports on the management format screen until the payment according to the volume report is paid from the trust organization to the building office or the contractor. Yes.

  As shown in FIG. 7, first, as described above, the inspection organization conducts a predetermined volume inspection, inputs it from the inspection organization communication terminal 3c to the volume report column G of the management format screen, and then receives an approval button L (FIG. 4). The volume is reported by clicking (see) (step S30). Next, the server 2 notifies the head office communication terminal 3a, the building owner communication terminal 3b, and the inspection organization communication terminal 3c that the volume report column G has been updated by e-mail by the mail transmission unit 26 (see FIG. 1). At the same time, a new approval password issued by the password issuing unit 27 is notified (step S31).

  Next, receiving the e-mail of step S31, the owner knows that the volume inspection by the inspection organization has been completed, and browses the management format screen to confirm the content of the volume report. Then, the building owner may go to the site for confirmation, and if the building owner trusts the inspection organization, click the approval button L (see FIG. 4) and approve the volume report of the inspection organization. (Step S32). Then, as in step S31, the server 2 notifies the head office communication terminal 3a, the building owner communication terminal 3b, and the inspection organization communication terminal 3c by e-mail that the building owner has approved the volume report. A new approval password issued by the password issuing unit 27 is notified (step S33).

  Next, upon receiving the mail in step S33, the headquarters knows that the volume report has been approved by the owner, and browses the management format screen to confirm the content of the volume report. When it is determined that there is no problem, the volume report of the inspection organization is approved by clicking the approval button L (step S34). Then, the server 2 calculates the payment date of the volume payment to be paid from the trust organization to the construction office and each contractor, and based on the presence or absence of the check mark in the volume report column G, the storage unit 23 determined in advance. The amount of payment is calculated by summing up the volume from the amount of contract etc. stored in (Step S35). When the server 2 updates the management format screen in the above-described step S21 (see FIG. 6), the server 2 also displays the scheduled payment date in the comment field I (see FIG. 4) (step S36). The server 2 also includes communication terminals (headquarters communication terminal 3a, building owner communication terminal 3b, inspection organization communication terminal 3c, contractor communication terminal 3d, building office communication) whose mail addresses are registered in the ID registration information database. The terminal 3e and the trust organization communication terminal 3f) are notified by e-mail that the headquarters has approved the volume report. At this time, the head office communication terminal 3a, the building owner communication terminal 3b, and the inspection organization communication terminal 3c are notified together with the new approval password issued by the password issuing unit 27, and each contractor communication terminal 3d and building office communication terminal are notified. 3e, the trust institution communication terminal 3f is notified of the scheduled payment date and the payment amount together (step S37).

  Next, in response to the e-mail in step S37, the trust organization knows the scheduled payment date, and browses the management format screen to check the display of the comment field I to confirm whether there is any mistake (step S38). Then, the trust organization pays the payment amount from the trust account to the construction office or the contractor by the scheduled payment date (step S39). At this time, payment may be automatically made from the trust account to the account of the construction office or the contractor. Then, the above steps (steps S30 to S39) are repeated for the predetermined number of volume inspections.

  In the present embodiment, the scheduled payment date is calculated five business days after the headquarters clicks the approval button. However, instead of calculating automatically, input to the comment field I from the headquarters communication terminal 3a, click the approval button, update the management format screen, and schedule the payment date by e-mail based on the input information May be notified. Since the payment amount is basically determined before the start of construction, it is not calculated automatically, but a trust institution is issued by issuing an invoice from the construction office or contractor without notifying the payment amount. You may make it pay.

  As described above, according to the escrow system of the building construction price according to the present embodiment, the management format screen is a mechanism that can only be viewed and cannot be rewritten from the communication terminal of the construction office or the construction company, and Since the payment is not made unless procedures are performed in the order of volume report of the inspection organization → approval of the building owner → approval of the headquarters, improper acts such as impersonation cannot be performed, and it is possible to prevent the building owner from approving it by mistake. Can be surely protected.

  In the above-described embodiment, the shape, structure, and the like of the members shown in the drawings are only preferable examples, and the design can be arbitrarily changed / modified within the scope described in the claims. Is something that can be done. In particular, the case where the authentication means for authenticating each communication terminal is performed with a password has been described. However, each communication terminal may be authenticated by identifying the person to be operated and performing personal authentication. Needless to say, known authentication means such as voice authentication and vein authentication may be substituted. In addition, the communication terminal and the server may be connected by wire, and the communication terminal may be specified thereby.

It is composition explanatory drawing which shows schematic structure of the escrow system of the building construction price which concerns on embodiment of this invention. It is a flowchart which shows the process until a management format screen is displayed by an escrow system same as the above. It is explanatory drawing which shows an example of the login screen of an escrow system same as the above. It is explanatory drawing which shows an example of the management format screen of an escrow system same as the above. It is explanatory drawing which shows an example of the volume report column of the management format screen of FIG. It is a flowchart which shows the approval process of the escrow system of FIG. It is a flowchart which mainly shows the payment process of the escrow system of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Escrow system 2 Server 23 Storage part 25 Format management part 26 Mail transmission part 27 Password issuing part 28 Password collation part 3 Communication terminal G Volume report column J Approval password input column L Approval button (approval means)

Claims (6)

An escrow system when the owner pays for the construction of the building,
A server that provides a management format screen for the escrow service, and a plurality of communication terminals capable of bidirectional communication with the server via a telecommunication line,
The communication terminal includes a headquarters that operates and manages the system, an architect, an inspection organization that inspects and reports whether or not the progress of the construction has reached a predetermined volume, and the design and supervision of the building. The construction office to perform, each contractor to perform the construction, and the construction office and / or the above-mentioned amount determined in advance for each predetermined milestone process according to the volume report of the inspection organization from the commissioned construction fee Set up in a trust organization that pays contractors,
The server provides a storage unit in which ID registration information of the owner, building office, each contractor, inspection organization, trust organization is stored in advance, and a management format screen that can be viewed from each communication terminal. A format management unit, and a mail transmission unit that individually transmits information to each communication terminal by e-mail; and
Among the plurality of communication terminals, the communication terminal installed in the headquarters, the building owner and the inspection organization is provided with an approval means capable of transmitting an approval signal,
The management format screen is provided with a volume report column that allows input of volume report information only from the communication terminal of the inspection organization,
Information of the volume report input in the volume report column from the communication terminal of the inspection organization and an approval signal by the approval means provided in the communication terminal of the inspection organization are received by the server, and from the communication terminal of the building owner, the building owner Only when an approval signal by the approval means provided in the communication terminal is received by the server, and after that, an approval signal by the approval means provided in the communication terminal of the headquarters is received by the server from the communication terminal of the headquarters. The payment date is sent from the server's mail transmission unit to the communication terminal of the trust organization, and the payment date is displayed on the management format screen so that it can be confirmed from the communication terminal of the building office and the contractor. An escrow system for building construction costs. The server includes a first authentication unit that determines whether or not to permit login by performing authentication of the communication terminal when logging in by accessing the server from each communication terminal, and the approval signal by the approval unit. A second authenticating means for authenticating the communication terminal before transmitting and determining whether or not to permit the transmission of the approval signal; and
The management format screen is displayed on the communication terminal only when it is determined that login is permitted by the first authentication means, and the approval signal can be transmitted by the approval means only when it is determined that the second authentication means permits. The escrow system for building construction charges according to claim 1, wherein   The approval means is provided with an approval button that can be clicked or pushed only from the headquarters, the building owner, and a communication terminal installed in the inspection organization, and when the approval button is clicked or pushed, the approval signal is transmitted. An escrow system for building construction charges according to claim 2. The server compares the password issuing unit that issues a password for each registration ID with reference to the ID registration information of the storage unit, and the password input from the communication terminal and the password stored in the storage unit A password verification unit for verification,
The management format screen is provided with an approval password input field for inputting an approval password in the vicinity of the approval button and the approval button,
In the first authentication means, whether or not to permit login by comparing and verifying the login password stored in the storage unit in the password verification unit and the password input from each communication terminal at the time of login Judgment and
In the second authentication means, the password entered in the approval password entry field in the password collation unit and the approval password stored in the storage unit are compared and collated to permit click or push of the approval button. The escrow system for building construction charges according to claim 3, wherein it is determined whether or not.   The password issuing unit issues a new password each time the approval button is clicked or pushed, and the mail sending unit sends the new password to each headquarters, the building owner, and each communication terminal installed in the inspection organization. The escrow system for building construction charges according to claim 4, wherein:   In the ID registration information of the storage unit, information on the trust account of the trust organization where the construction cost of the building owner is deposited and information on the account of the building office and / or the contractor are registered. The predetermined amount determined for each milestone process on the scheduled payment date is settled from the trust account and paid to the construction office and / or the contractor's account. An escrow system for building construction costs as described in one of the above.

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