A fund platform service system and its terminal device

Abstract

The present invention relates to the technical field of the Internet, and particularly to a fund platform service system and its terminal device, which includes a system management module, a user operation module, a data storage module, and a wireless connection module. The user operation module, the data storage module, and the wireless connection module are respectively signal-connected to the system management module. The present invention solves the technical problems in the prior art of lacking an efficient fund recommendation mechanism and failing to perform personalized and accurate fund product matching and push according to the user's account balance, realizes effectively improving the user's financial management experience, enhancing user stickiness, and can also promote the reasonable allocation of funds, helping investors pursue higher investment returns while controlling risks; through the matching mechanism, it helps users make more effective use of idle funds, avoid over-investment or fund idleness, thereby improving the overall utilization efficiency and potential rate of return of funds.

Description

Technical Field

[0001] The present invention relates to the technical field of the Internet, and particularly to a fund platform service system and its terminal device. Background Art

[0002] In the context of the rapid development of current financial technology, fund investment, as an important financial management method, is increasingly favored by the majority of investors. As a bridge connecting investors and the capital market, the functional perfection and intelligent level of the fund service platform are directly related to the financial management experience of users and the efficiency of asset allocation. However, in the process of implementing the technical solution of the present invention in the embodiments of the present application, the inventors found that the above technologies have at least the following technical problems: In the existing fund service platform systems in the market, it is not difficult to find two significant technical shortcomings: one is the lack of an efficient fund recommendation mechanism, and the other is the failure to perform personalized and accurate fund product matching and push based on the user's account balance. These two problems have greatly restricted the potential of investors to efficiently utilize funds and achieve asset appreciation.

[0003] Problem of lack of fund recommendation function: Most traditional fund service platforms rely on users to independently search for and select funds. This method not only requires investors to have a relatively high level of knowledge and analysis ability in the financial market, but also may lead to information asymmetry, making it difficult for ordinary investors to select truly suitable investment targets from numerous fund products according to their own risk preferences and return expectations. In addition, the lack of intelligent recommendation means that the platform cannot actively guide users to pay attention to emerging market opportunities or risk warnings that they may be interested in, reducing the investment efficiency and flexibility.

[0004] Problem of not matching and pushing funds according to the account balance: The account balances of individual investors vary greatly, and their investment strategies, risk tolerance, and fund allocation requirements also vary significantly as a result. However, existing fund service platforms often ignore this key variable and do not fully consider the actual financial situation of users when recommending funds to users, resulting in a mismatch between the recommended content and the actual investment ability of users. For example, high-net-worth users may miss information on high-end financial products suitable for their fund size, while investors with limited funds may receive fund recommendations beyond their investment ability, which not only affects the user experience but also may increase the investment risk of users. Summary of the Invention

[0005] Embodiments of the present application provide a fund platform service system and its terminal device, which solve the technical problems in the prior art of lacking an efficient fund recommendation mechanism and failing to perform personalized and accurate fund product matching and pushing based on the user's account balance. It realizes effectively improving the user's financial management experience, enhancing user stickiness, promoting the reasonable allocation of funds, and helping investors pursue higher investment returns while controlling risks; the matching mechanism helps users make more effective use of idle funds, avoid over-investment or idle funds, thereby improving the overall utilization efficiency and potential rate of return of funds.

[0006] Embodiments of the present application provide a fund platform service system, which includes a system management module, a user operation module, a data storage module, and a wireless connection module. The user operation module, the data storage module, and the wireless connection module are respectively connected to the system management module in a signal connection;

[0007] The system management module includes a system control unit, a fund trading unit, a fund recommendation unit, a fund screening unit, and a balance-purchasable fund matching unit. The fund trading unit, the fund recommendation unit, the fund screening unit, and the balance-purchasable fund matching unit are respectively connected to the system control unit in a signal connection;

[0008] The fund screening unit includes an industry screening section, a price screening section, and a type screening section. The fund recommendation unit includes a one-key recommendation selection button. When the user needs fund recommendation, the screening conditions are pre-screened in the fund screening unit, and then the one-key recommendation selection button in the fund recommendation unit is clicked. The fund recommendation unit automatically recommends funds according to the conditions screened by the user in the fund screening unit and displays the automatically recommended funds in the form of a list;

[0009] The user operation module includes a user personal account information management unit and an account balance upload and matching unit. The account balance upload and matching unit is connected to the balance-purchasable fund matching unit in a signal connection through the system control unit. The user fills in the expected purchase share in the account balance upload and matching unit, and the account balance upload and matching unit sends the expected purchase share filled in by the user to the balance-purchasable fund matching unit. The balance-purchasable fund matching unit lists the funds that can be purchased with the balance according to the expected purchase share and the account balance for the user to select and click to purchase.

[0010] Among them, the user personal account information management unit includes a password management section, an associated bank card section, a recharge section, a balance display section, a user credit section, and a personal information registration section.

[0011] Among them, the user operation module further includes a purchased fund section.

[0012] Among them, the fund trading unit includes a fund selection directory section, a share selection section, and a fund purchase button.

[0013] Among them, the system management module further includes a policy push unit, and the policy push unit includes a full policy section, an industry policy section, a category policy section, and a policy search section;

[0014] The full policy section is used to display policies in various industries and various categories;

[0015] The industry policy section is used for users to screen different industries and then display the corresponding industry policies;

[0016] The category policy section is used for users to screen different categories and then display the corresponding category policies;

[0017] The policy search section is used for users to input keywords to search for policies.

[0018] Among them, the system management module further includes a policy-fund matching unit, and the policy push unit is signal-connected to the policy-fund matching unit; after the policy-fund matching unit determines the policy selected by the user from the policy push unit, it displays the fund directory corresponding to the selected policy.

[0019] Among them, the system management module further includes a credit unit. The credit unit is provided with a credit investigation authorization section, and the credit investigation authorization section is signal-connected to the user credit section; the credit unit is also provided with an available credit amount section and a one-key credit button. When the user clicks the one-key credit button, the credit investigation authorization section obtains the user's personal credit investigation through the user credit section, and the available credit amount section displays the user's available credit limit in a pop-up window according to the user's personal credit investigation, and the user can choose to continue or cancel in the pop-up window.

[0020] Among them, the user personal account information management unit further includes a user-associated device section, and the user-associated device section is associated and bound with the user's intelligent terminal through the wireless connection module of the system management module.

[0021] The embodiment of the present application further provides a fund platform service terminal device, which includes a body, a touch display screen movably arranged on the top of the body, and a lifting mechanism installed in the body. The lifting mechanism is used to drive the touch display screen to move up and down; a processor is arranged in the body, and the processor is electrically connected to the touch display screen and the lifting mechanism respectively; the fund platform service system is arranged in the touch display screen.

[0022] Among them, a face recognition camera is further arranged at the rear side of the upper end surface of the touch display screen.

[0023] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0024] Due to the adoption of a fund trading unit, a fund recommendation unit, a fund screening unit, and a balance-purchasable fund matching unit, the technical problems in the prior art of lacking an efficient fund recommendation mechanism and failing to perform personalized and accurate fund product matching and pushing based on the user's account balance are effectively solved. It realizes the effective improvement of the user's financial management experience, enhances user stickiness, promotes the reasonable allocation of funds, and further realizes the facilitation of helping investors pursue higher investment returns while controlling risks; the matching mechanism helps users make more effective use of idle funds, avoid over-investment or idle funds, thereby improving the overall utilization efficiency and potential rate of return of funds. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a principle block diagram of a fund platform service system of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The embodiments of the present application provide a fund platform service system and its terminal device, which solve the technical problems in the prior art of lacking an efficient fund recommendation mechanism and failing to perform personalized and accurate fund product matching and pushing based on the user's account balance, realize the effective improvement of the user's financial management experience, enhance user stickiness, promote the reasonable allocation of funds, and help investors pursue higher investment returns while controlling risks.

[0027] The technical solutions in the embodiments of the present application for solving the above technical problems have the following general idea:

[0028] A fund platform service system includes a system management module, a user operation module, a data storage module, and a wireless connection module. The user operation module, the data storage module, and the wireless connection module are respectively connected to the system management module in a signal connection;

[0029] The system management module includes a system control unit, a fund trading unit, a fund recommendation unit, a fund screening unit, and a balance-purchasable fund matching unit. The fund trading unit, the fund recommendation unit, the fund screening unit, and the balance-purchasable fund matching unit are respectively connected to the system control unit in a signal connection;

[0030] The fund screening unit includes an industry screening section, a price screening section, and a type screening section. The fund recommendation unit includes a one-click recommendation selection button. Specifically, users can pre-select the corresponding industry in the industry screening section, select the price range in the price screening section, or select the fund type in the type screening section. When users need fund recommendations, they first screen the conditions in the fund screening unit and then click the one-click recommendation selection button in the fund recommendation unit. The fund recommendation unit automatically recommends funds according to the conditions screened by users in the fund screening unit and displays the automatically recommended funds in a list form, facilitating users to quickly view and select the corresponding fund information, simplifying the investment difficulty, and improving the investment efficiency and accuracy.

[0031] The user operation module includes a user personal account information management unit and an account balance upload and matching unit. The account balance upload and matching unit is signal-connected to the balance-purchasable fund matching unit through the system control unit. Users fill in the expected purchase share in the account balance upload and matching unit, and the account balance upload and matching unit sends the expected purchase share filled in by users to the balance-purchasable fund matching unit. The balance-purchasable fund matching unit lists the funds that can be purchased with the balance according to the expected purchase share and the account balance for users to select and click to purchase.

[0032] Specifically, under the above settings, the embodiment of the present application is ingeniously designed. Combining the user's financial situation, the system can intelligently screen out suitable fund products, effectively control investment risks, improve the pertinence and accuracy of investment suggestions, and ensure that the recommended content is closely related to the user's financial situation, helping users plan investment portfolios more scientifically. The system recommends strategies based on the user's account balance to ensure that the pushed fund products match the user's investable amount. This refined matching mechanism helps users make more effective use of idle funds, avoid over-investment or idle funds, and thus improve the overall utilization efficiency and potential return rate of funds. In addition, the embodiment of the present application can directly obtain fund recommendations that meet its own needs, greatly improving the convenience and efficiency of investment decisions. The embodiment of the present application helps users make more effective use of idle funds through the matching mechanism, avoid over-investment or idle funds, and thus improve the overall utilization efficiency and potential return rate of funds.

[0033] To better understand the above technical solutions, the following will detail the above technical solutions in conjunction with the specification drawings and specific implementation manners.

[0034] Embodiment 1

[0035] In the first embodiment of the present application, the user personal account information management unit includes a password management section, an associated bank card section, a recharge section, a balance display section, a user credit investigation section, and a personal information registration section; among them, the user operation module further includes a purchased funds section. Specifically, under the above settings, the password management section is for the user to modify and retrieve passwords; the associated bank card section is for the user to associate, bind, and unbind bank cards; the recharge section is used to recharge the user, and in this recharge operation, the money in the already associated and bound bank card is transferred to the user's personal account. The balance display section shows the balance in the user's personal account. The personal information registration section is for the user to fill in personal profile information, and the user credit investigation section is for the user to check their own credit investigation.

[0036] Furthermore, the user personal account information management unit further includes a user associated device section, and the user associated device section is associated and bound with the user's intelligent terminal through the wireless connection module of the system management module. Specifically, under the above settings, after binding the intelligent terminal, the user can only enter the fund platform service system from the already bound intelligent terminal through the wireless connection module, which improves the usage security.

[0037] In the first embodiment of the present application, the system management module further includes a credit unit. The credit unit is provided with a credit investigation authorization section, and the credit investigation authorization section is signal-connected to the user credit investigation section; the credit unit is also provided with an available credit amount section and a one-key credit button. When the user clicks the one-key credit button, the credit investigation authorization section obtains the user's personal credit investigation through the user credit investigation section, and the available credit amount section displays the user's available credit limit in a pop-up window according to the user's personal credit investigation, and the user can choose to continue or cancel in the pop-up window. Specifically, under the above settings, the credit unit is for the user to conduct a credit loan. Among them, after obtaining the user's credit investigation by using the signal connection between the credit investigation authorization section and the user credit investigation section; the user can click the one-key credit button. When the user clicks the one-key credit button, the credit investigation authorization section obtains the user's personal credit investigation through the user credit investigation section, and the available credit amount section displays the user's available credit limit in a pop-up window according to the user's personal credit investigation, and the user can choose to continue or cancel in the pop-up window; when clicking continue, an electronic version of the credit contract needs to be signed, and then the user is prompted to bind the repayment bank card. After completing the signing of the credit contract, the loan is released to the user's personal account.

[0038] In the first embodiment of the present application, the fund trading unit includes a fund selection directory section, a share selection section, and a fund purchase button. Specifically, under the above settings, it is convenient for the user to view, select, and purchase funds.

[0039] In the first embodiment of the present application, the system management module further includes a policy push unit, and the policy push unit includes a full policy section, an industry policy section, a category policy section, and a policy search section;

[0040] The full policy section is used to display policies for all industries and various categories;

[0041] The industry policy section is used for users to screen different industries and then display the policies corresponding to the selected industry;

[0042] The category policy section is used for users to screen different categories and then display the policies corresponding to the selected category;

[0043] The policy search section is used for users to input keywords to search for policies.

[0044] Among them, the system management module further includes a policy-fund matching unit, and the policy push unit is signal-connected to the policy-fund matching unit; after the policy-fund matching unit determines the policy selected by the user from the policy push unit, it displays the fund catalog corresponding to the selected policy.

[0045] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0046] Specifically, under the above settings, it is convenient for users to quickly find the corresponding policies. At the same time, in the policy-fund matching unit, according to the policies selected by the users, the fund catalogs corresponding to these policies are automatically listed, which is convenient for users to select funds and improves the investment efficiency and investment accuracy.

[0047] Embodiment Two

[0048] Embodiment 2 of the present application provides a fund platform service terminal device, which includes a body, a touch display screen movably arranged on the top of the body, and a lifting mechanism installed in the body. The lifting mechanism is used to drive the touch display screen to move up and down; a processor is arranged in the body, and the processor is electrically connected to the touch display screen and the lifting mechanism respectively; the fund platform service system is arranged in the touch display screen; the touch display screen is provided with an up touch button, a down touch button and a pause touch button. The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: users can respectively control the lifting mechanism to drive the touch display screen to rise, fall and pause through the up touch button, the down touch button and the pause touch button, so as to realize the height control of the touch display screen, which is convenient for users of different heights; in Embodiment 2 of the present application, through the touch display screen, it is convenient for users to operate the fund platform service system. The body of Embodiment 2 of the present application can be installed on the ground, and the fund platform service terminal device can be arranged in a fund investment company or a securities investment company, which is convenient for users to use, is beneficial to saving the company's investment explanation, saving labor costs, improving the user's investment experience, and simplifying the user's investment process and investment difficulty.

[0049] In Embodiment 2 of the present application, a face recognition camera is further arranged at the rear side of the upper end surface of the touch display screen. The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: the system management module is further provided with a password module, and users can enter the system only after entering the password in the password module, and in cooperation with the face recognition camera, the face is recognized; when the face recognition camera in Embodiment 2 of the present application is working, if the recognized face is not the user account holder, no alarm is issued, but a prompt signal is sent to the system control unit. The system control unit compares the photo taken by the face recognition camera with the user photo saved on the account. When the comparison result is again not the user account holder, a reminder is made by dialing / sending a message to the user's phone. At the same time, the photo taken by the face recognition camera is sent to the data storage module for storage and classification (this classification is carried out by the system according to different accounts). If the user's phone does not answer the call or reply to the message for more than 10 minutes, the system control unit dials / sends a message to the system management center, and the staff of the system management center checks in time. At the same time, the system control unit sends the photo taken by the face recognition camera to the public security bureau system, so as to facilitate the public security bureau to dispatch personnel for investigation and arrest of suspected criminals in the future.

[0050] In the second embodiment of the present application, a human height measuring instrument (which can be a rangefinder, similar to the rangefinder of a mobile phone, a prior art and will not be elaborated here) is further provided at the front end of the body; the system management module is also provided with a new user account opening section; when the user inputs the correct password through the password module and at the same time the face recognition camera recognizes the user's own head portrait, the verification is passed, which is convenient for the user to access their own account; at the same time, the system control unit presets the height of the touch display screen corresponding to different heights. According to the height information pre-registered by the user, the system control unit drives the touch display screen to move up and down through the lifting mechanism to adjust the height of the touch display screen, so as to achieve the height control of the touch display screen and facilitate users of different heights; of course, if a new user opens an account and uses it through the new user account opening section, the human height measuring instrument detects the height of the current account opener, sends a signal to the system control unit, and then adjusts the height of the touch display screen through the lifting mechanism according to the preset height of the touch display screen corresponding to different heights; in the above settings, the user experience is greatly improved, and the situation of using difficulties caused by different heights is reduced.

[0051] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0052] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of flows and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one or more of the flows Figure 1 or multiple flows and / or blocks

[0053] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including instruction means, and the instruction means implements the functions specified in Figure 1 one or more of the flows Figure 1 or multiple flows and / or blocks

[0054] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus, so that a series of operation steps are performed on the computer or other programmable apparatus to produce a computer-implemented process, thereby providing instructions for implementing the functions specified in one process or a plurality of processes and / or boxes Figure 1 in one box or a plurality of boxes. Figure 1 steps.

[0055] Although the preferred embodiments of the present invention have been described, additional changes and modifications can be made by those skilled in the art once they learn of the basic creative concept. Therefore, the appended claims are intended to be construed to cover the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0056] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A fund platform service terminal device, characterized in that: It comprises a body, a touch screen movably arranged on the top of the body, and a lifting mechanism installed in the body, wherein the lifting mechanism is used to drive the touch screen to move up and down; a processor is arranged in the body, and the processor is electrically connected to the touch screen and the lifting mechanism respectively; a fund platform service system is arranged in the touch screen; The fund platform service system includes a system management module, a user operation module, a data storage module and a wireless connection module, wherein the user operation module, the data storage module and the wireless connection module are respectively connected to the system management module by signals; The touch screen is provided with an ascending touch button, a descending touch button and a pause touch button; the user controls the lifting mechanism to drive the touch screen to ascend, descend and pause through the ascending touch button, the descending touch button and the pause touch button, and controls the height of the touch screen; A face recognition camera is also provided on the rear side of the upper end surface of the touch display screen; The system management module is also provided with a password module. The user can enter the system only after entering the password in the password module, and cooperate with the face recognition camera to recognize the face; when the face recognition camera is working, if the face is not recognized as the user account, no alarm is issued, but a prompt signal is issued to the system control unit, and the system control unit compares the photo taken by the face recognition camera with the user photo saved in the account. When the comparison result is not the user account again, the user's phone is dialed / sent to remind, and at the same time, the photos taken by the face recognition camera are sent to the data storage module for storage and classification; if the user's phone does not answer the call or reply to the message for more than 10 minutes, the system control unit dials / sends a message to the system management center, and the staff of the system management center checks in time; The front end of the machine body is also provided with a human height measuring instrument; the system management module is also provided with a new user account opening section; when the user enters the correct password through the password module and the face recognition camera recognizes the user's head portrait at the same time, the verification is passed and the user enters his own account; at the same time, the system control unit presets the height of the touch screen corresponding to different heights, and according to the height information pre-registered by the user, the system control unit drives the touch screen to move up and down through the lifting mechanism to control the height of the touch screen; when a new user opens an account through the new user account opening section, the human height measuring instrument detects the height of the current account holder, sends a signal to the system control unit, and then adjusts the height of the touch screen through the lifting mechanism according to the preset height of the touch screen corresponding to the different heights; The system management module includes a system control unit, a fund transaction unit, a fund recommendation unit, a fund screening unit and a balance purchase fund matching unit, and the fund transaction unit, the fund recommendation unit, the fund screening unit and the balance purchase fund matching unit are respectively connected to the system control unit by signal; The fund screening unit includes an industry screening section, a price screening section, and a type screening section. The fund recommendation unit includes a one-key recommendation selection button. When a user needs a fund recommendation, he / she pre-screens conditions in the fund screening unit, and then clicks the one-key recommendation selection button in the fund recommendation unit. The fund recommendation unit automatically recommends funds according to the conditions screened by the user in the fund screening unit, and displays the automatically recommended funds in a list form. The user operation module includes a user personal account information management unit and an account balance upload matching unit, the account balance upload matching unit is connected to the balance purchase fund matching unit signal through the system control unit, the user fills in the expected purchase share in the account balance upload matching unit, the account balance upload matching unit sends the expected purchase share filled in by the user to the balance purchase fund matching unit, and the balance purchase fund matching unit signal lists the funds that can be purchased with the balance according to the expected purchase share and the account balance for the user to choose to click to purchase; The user personal account information management unit includes a password management section, a linked bank card section, a recharge section, a balance display section, a user credit section and a personal information registration section; the user operation module also includes a purchased fund section; The password management section allows users to modify and retrieve passwords; the linked bank card section allows users to bind and unbind bank cards; the recharge section is used to perform recharge operations for users, in which the money in the linked bank card is transferred to the user's personal account; the balance display section is used to display the balance in the user's personal account; the personal information registration section is used for users to fill in their personal information; the user credit section is used to check the user's own credit; The user personal account information management unit also includes a user associated device section, which is associated and bound with the user's smart terminal through the wireless connection module of the system management module; after the smart terminal is bound, the user can only enter the fund platform service system through the wireless connection module from the bound smart terminal; The system management module also includes a credit unit, which is provided with a credit authorization panel, and the credit authorization panel is signal-connected with the user credit panel; the credit unit is also provided with a creditable amount panel and a one-click credit button, when the user clicks the one-click credit button, the credit authorization panel obtains the user's personal credit through the user credit panel, and the creditable amount panel displays the user's credit limit pop-up window according to the user's personal credit, and the user can choose to continue or cancel in the pop-up window; The credit unit is used for users to apply for credit loans, wherein the credit authorization panel is connected with the user credit panel signal to obtain the user's credit; the user clicks the one-click credit button, when the user clicks the one-click credit button, the credit authorization panel obtains the user's personal credit through the user credit panel, the creditable amount panel displays the user's credit limit pop-up window according to the user's personal credit, and the user can choose to continue or cancel in the pop-up window; when clicking to continue, it is necessary to sign the electronic version of the credit contract, and then prompt the user to bind the repayment bank card, after completing the signing of the credit contract, the loan is released to the user's personal account; The system management module also includes a policy push unit, which includes a full policy section, an industry policy section, a category policy section, and a policy search section; The full policy section is used to display policies of various industries and categories; The industry policy section is used for users to filter different industries and display the policies of the corresponding industries; The category policy section is used for users to filter different categories and then display the policies of the corresponding categories; The policy search section is used for users to enter keywords to search for policies; The system management module also includes a policy-fund matching unit, and the policy push unit is signal-connected to the policy-fund matching unit; the policy-fund matching unit displays a fund catalog corresponding to the policy selected by the user from the policy push unit.

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