JP2006012070A - Floor plan selection system for multiple dwelling house - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new floor plan selection system by which even a person with no expert knowledge of a multiple dwelling house can easily select a floor plan that he or she likes. <P>SOLUTION: The floor plan selection system for a multiple dwelling house comprises a database 1 that stores data of a house floor plan, etc., a server device 2 that manages the database 1, and a terminal device 4 that can be connected to the server device 2 through a communication network 3. By inputting information on dwellers (a family structure) and information on living (a lifestyle) from the terminal device, the system extracts the house floor plan that matches the conditions inputted with priority put on the information on living, from the database, and displays it on the terminal device. The information on living is accumulated in the database in a form of a survey by questionnaire on a mode of living, and is associated with the house floor plan. Inputting of the information on living by the terminal device is implemented by selecting and specifying the mode of living displayed on the inputting screen of the terminal device. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a floor plan selection system for an apartment house by a computer.

  In conventional apartments, the floor plan of the dwelling unit has been decided in advance, and it was difficult to change the floor plan of the dwelling unit at the request of the customer, but in recent years, due to the diversification of lifestyles, it cannot be satisfied with the predetermined floor plan. The number of customers is increasing, and recently, a so-called free plan method that allows customers to freely design a floor plan has been proposed.

  However, in this free plan method, not all customers have expertise related to construction, so it is necessary to have an expert who can consult with the design at the time of sale, and various floor plans are performed. Accumulation work and ordering work in material procurement become complicated, and as a result, it is limited to about 100 condominiums.

  Therefore, at present, what is called a so-called select plan method, in which a favorite floor plan can be selected from among several floor plans, has become common.

  However, in this select plan method, due to the diversification of lifestyles, 20 to 30 kinds of floor plans can be selected even in one dwelling unit, and there are 10 to 15 dwelling units in a 100-unit condominium. Since there is a degree, it is not common to pick a favorite floor plan from a huge floor plan.

  Therefore, recently, a floor plan selection system using a computer has been used in the select plan method. For example, JP 2003-141237 (Patent Document 1) or JP 2002-61400 (Patent Document). 2) has been proposed.

  However, in the floor plan selection system of Patent Document 1, when extracting from a large number of floor plans, the extraction conditions are hierarchized. Therefore, if the selection is canceled at the higher condition stage of the hierarchized conditions, Again, there was a problem that it was necessary to input from the upper conditions.

  In particular, in Patent Document 1, as an upper condition of the hierarchized various conditions, the dwelling unit area is uniquely determined from the price of the dwelling unit, which may be inconvenient.

  Certainly, the price of a dwelling unit is important in the selection because it requires a large amount of money to purchase a residence, but it is possible that a favorite floor plan can be found at a lower price than the original budget, and conversely, a favorite floor plan is preferred. If there is, there may be some budget overrun, and there is an opinion that as a floor plan selection system, it is better to first extract the floor plan you like and then consider the price.

  In that sense, the life stage floor plan selection system proposed in Patent Document 2 (after paragraph 0036) extracts and compares suitable floor plans according to the number of residents and their age and / or preference as a high-level condition. There is also an opinion that it is good in that.

However, the layout selection system according to life stage in Patent Document 2 is also unchanged in that the extraction conditions are hierarchized. For example, the floor plan that the system determines to be appropriate based on the conditions of family structure and hobbies is displayed. Select the desired floor plan for each functional space that the floor plan has, but if you do not find the one you like as a result, it is necessary to change the retroactive condition setting to the setting stage of the functional space allocation plan, which is the upper setting condition. come.

  Moreover, what can be said in common with Patent Document 1 and Patent Document 2 is that the term as a selection condition is difficult.

  For example, in Patent Document 1, as a method of setting priority conditions in floor plan extraction, the number of rooms, the size of storage, and the size of a living dining room are numerically input. Regardless of how large the dining room is, the customer can hardly answer.

  Moreover, even if it is 20 square meters, the convenience of the room differs depending on whether it is a square or a rectangle, where the window is, and so on, the extraction condition desired by the customer is not just the size.

  In the first place, space is recognized not only in terms of the size of the floor, but also in terms of shape and ceiling height, and of course, there is also a need for a balance in the total area of the dwelling unit. There is a problem that there is no answer even if asked about the size of.

  Also, in Patent Document 2, it is said that when selecting a functional space allocation plan, it is recommended to set a condition whether the surrounding water such as a kitchen should be in the center of the dwelling unit or facing the balcony. However, customers are worried because they cannot predict what will happen.

  In other words, both have advantages and disadvantages, and the disadvantages appear in places other than around water. For example, in the case where the surroundings of water such as a kitchen are provided on the balcony side, it is usually difficult to provide two rooms other than the kitchen on the balcony side, but for those who do not know such conditions, there is no way to set it.

JP 2003-141237 A JP 2002-61400 A

  The present invention has been made in view of the above-mentioned problems, and the purpose of the present invention is a new one that allows a person who does not have expertise in an apartment house to easily select a preferred floor plan. It is to provide a simple floor plan selection system.

  In order to achieve the above object, technical measures taken by the present invention are as follows. That is, the floor plan selection system according to the invention of claim 1 is connectable to a server device through a communication network, a database that records data such as a floor plan of a dwelling unit, a server device that manages the database, and the like. The floor plan of the dwelling unit corresponding to the condition entered with priority on living information by inputting resident information (family structure) and living information (lifestyle) from the terminal device. Is a system for selecting a floor plan for an apartment house that is extracted from the terminal device and displayed on the terminal device. In the database, life information is stored in a questionnaire format for living styles and is associated with a floor plan of the dwelling unit. The life information is input by selecting and directing the way of life displayed on the input screen of the terminal device. .

  The invention according to claim 2 is the floor plan selection system for an apartment house according to claim 1, wherein the input screen of the terminal device includes a plurality of LD, kitchen, master bedroom / western room, Japanese-style room / housing, etc. It is characterized by being configured to display options and to select and instruct the way of life for each option.

  The invention described in claim 3 is the floor plan selection system for an apartment house according to claim 2, wherein it is possible to prioritize the way of life selected and indicated on the input screen of the terminal device. When there is no floor plan corresponding to all the conditions, the input item with the lower priority is deleted and searched again.

  The invention according to claim 4 is the floor plan selection system for an apartment house according to claim 3, wherein the deleted input item is displayed on the screen displaying the search result of the terminal device. It is characterized by that.

  According to the first aspect of the present invention, the living information (lifestyle) is given priority among the resident information (family structure) and the living information (lifestyle), and the dwelling unit corresponding to the condition is selected from the database. Since the floor plan is extracted, it is possible to extract the floor plan more suited to the lifestyle without limiting the number of rooms uniquely from the family structure as in the past.

  That is, in the conventional floor plan selection system, the floor plan search conditions are hierarchical, so if a family of four, the 2LDK is usually first deleted from the selection conditions as not suitable, but the same. Even a family of four of a couple and two children may have a 2LDK consisting of two rooms, a children's room and a couple's room, who have a large children's room and should be separated with furniture. In addition, since 2LDK and 3LDK have different construction costs, 2LDK may be able to purchase a larger dwelling unit than 3LDK with the same budget.

  In this regard, according to the first aspect of the present invention, the floor plan of the dwelling unit corresponding to the condition is extracted with priority given to living information (lifestyle), so that a large children's room is provided as described above and partitioned by furniture. If the room is used effectively or the child's room can be formed with a movable partition, the room space that can be used in a spacious manner with the living room is not excluded in the daytime. A person's family can extract a floor plan based on a free idea that is not bound by the conventional framework such as 4LDK.

  If there are still few input items for life information (lifestyle) and the search results become enormous, a narrow search is performed based on the resident information (family structure) and displayed on the search result display screen of the terminal device. Therefore, the number of floor plans to be made is limited to an appropriate range. In other words, it is thought that people who do not have much input items for lifestyle information (lifestyle information) are not particularly particular, so narrowing down using conventional resident information in the sense of extracting a very general floor plan. As a result, the number of floor plans displayed on the screen of the terminal device is limited to an appropriate range.

  In particular, according to the first aspect of the present invention, the life information (lifestyle) input by the terminal device is performed by selecting and instructing the way of living displayed on the input screen of the terminal device. Even a person who does not have expertise about can easily select a preferred floor plan.

That is, instead of entering the number and size of the rooms numerically and selecting whether to place the kitchen in the center of the room or on the balcony side as in the conventional floor plan selection system, Instead, if you are planning to live in a kitchen, for example, if you are in the kitchen, “I want to enjoy talking with my family while cooking”, “I want to make sweets with my children”, “I want to see others in the kitchen “I want to enhance storage because I do bulk purchases” and itemized the lifestyle image and the way of living that the prospective occupants are likely to have, so I chose from them, so the kitchen as before It is difficult to imagine what each of them is, whether the center of the dwelling unit is good, the balcony side is good, or whether the counter kitchen is good or the open kitchen is good Neither it, nor that bother asked whether I want how many square meters.

  According to the second aspect of the present invention, a plurality of options such as LD, kitchen, master bedroom / western room, Japanese-style room / storage, etc. are displayed on the input screen of the terminal device, and the way of living is selected and instructed for each option. As a result, it is possible to recognize and organize one's own lifestyle, and to smoothly enter life information (lifestyle) input (instruction to select a lifestyle).

  According to the third aspect of the present invention, there is an effect that it is possible to avoid 0 corresponding search results. That is, even if the customer inputs life information (lifestyle), if the number of applicable properties is 0, it is harsh, and the reason why the number is 0 is unknown, so it is difficult to search again. As a result of the search, there may be no corresponding property because the conflicting item is selected as a way of life (life image), or there is no floor plan that satisfies all the items selected and instructed by the customer. . However, if the search result is zero, the customer does not know whether there is no property corresponding to the item, whether the item is specified correctly, and which item is wrong if there is a mistake. Therefore, in the invention according to claim 3, the server device searches the database, and at the stage where the search result becomes 0, the customer first places priority among the input search items (life information). Delete the subordinate item marked with from the search item and perform the search again. As a result, for the time being, the search results can be displayed with respect to what the customer ranks higher in the priority order, and the corresponding 0 search results can be avoided.

  In particular, according to the invention described in claim 4, since the deleted input item is displayed on the screen displaying the search result of the terminal device, the customer knows that the conflicting item has been designated. It is possible to search again by deleting this, changing the priority, selecting other items, etc., and it is not necessary to input data from the beginning again, so it is easy to search again There is an effect to become.

  FIG. 1 shows a floor plan selection system for an apartment house according to the present invention, which includes a database 1 that records data such as floor plans of a dwelling unit, a server device 2 that manages the database 1, and a communication network 3 such as a LAN or the Internet. And a terminal device 4 connectable to the server device 2. As the terminal device 4, a personal computer having a display unit, an input unit, a calculation unit, and a storage unit is used. As shown in FIG. 2, resident information (having a family structure) and life information ( Is a lifestyle), a floor plan corresponding to a condition input with priority on life information is extracted from the database 1 and displayed on the terminal device 4.

  As will be described later, life information (lifestyle) is stored in the database 1 in the form of a lifestyle questionnaire. Each item of life information (living style) is stored in a code table set in the server device 2. It is associated with the floor plan of the dwelling unit. FIG. 3 illustrates a code table for associating each item of life information with a floor plan.

In the flow of this system shown in FIG. 2, since resident information (family structure) is input, and then life information (lifestyle) is input and searched, it seems that it does not seem to be different from the conventional floor plan selection system. As can be seen from the flow of operations in the above diagram, data is accumulated in the storage unit regarding resident information (family structure). However, in the floor plan search, the search is basically performed based on life information (lifestyle). There is one feature.

  Details of each item of life information (lifestyle) will be described later, but in the end, there are items in the life information that ask questions about the children's room, and there are items that ask how to use each room, so it is almost necessary It is possible to extract the floor plan.

  Conventionally, if there is only one prospective occupant, it will be searched by excluding the floor plan of 4LDK or 5LDK in advance, but for any reason, there may be people who want a lot of room, so the search range Do not narrow down from the beginning. This system gives priority to lifestyle.

  Also, the reason for searching using life information (lifestyle) is to eliminate the conventional framework of “dwelling units with Japanese-style rooms” because they are mature couples. The concept of such a floor plan for young people or mature people is not necessary nowadays as lifestyles are diversifying. Although it is an extreme way of speaking, basically, the person who needs a Japanese-style room at the input stage of life information (lifestyle) regardless of age should give priority to the idea of extracting a floor plan with a Japanese-style room. Yes. Although details will be described later, in this sense, item setting of life information (lifestyle) is important. However, when there are few input items of life information (lifestyle) and there are many search results, it narrows down using resident information. In other words, it is thought that people who do not have much input items for life information (lifestyle) are not particularly particular, so narrow down using conventional resident information in order to extract a very general floor plan. . Further, when there are three or more prospective residents, the floor plan of 1LDK may be excluded from the search result, and when there are four or more people, 2LDK or 1LDK may be excluded from the search result. The case of being excluded is a case where the number of rooms is small with respect to the expected number of residents and the area of the entire dwelling unit is small. As described above, even if a family of four has a large room, the house can be devised such as partitioning with furniture, but such a response is difficult if the area of the entire dwelling unit is small. Therefore, for example, those having a small dwelling area are excluded from the search results based on the resident information. However, the selection system of the present invention does not limit the floor plan uniformly according to the resident information (family structure) as in the prior art, but it is a space that can be fully devised for a family of four. If it is a certain dwelling unit, life information (lifestyle) is given priority in the sense that even 2LDK and 1lDK are extracted as search results.

  In this system, the reason for entering from the resident information (family structure) is that following these procedures, “One child may increase after two years”, “After three years, the child will be in a private room. This is because it is considered that the lifestyle in the near future can be recognized and the input of life information (lifestyle) can proceed smoothly, such as “Let's live with a grandmother in five years”.

  As described above, since this system searches based on lifestyle images and lifestyles, it is based on free ideas that are not bound by the conventional framework of 3LDK for a family of 3 and 4LDK for a family of 4 people. Can be extracted.

  Next, the operation of the floor plan selection system will be specifically described according to the order displayed on the screen of the terminal device 4.

  FIG. 4 is an initial screen displayed on the terminal device 4 connected to the server device 2. Here, the customer's name, telephone number, and the like are input.

  FIG. 5 is an input screen for resident information (family structure), in which the family structure is input. In the name and telephone number fields, the result input on the screen of FIG. 4 is displayed. Note that the birth date entry field in FIG. 5 may be omitted, or may be implemented in place of the age and age entry fields of the 20s and 30s. In addition, regarding children, it is possible to display by classifying infants, kindergarten children, elementary school students, junior high school students, high school students, university students, and adults, and estimate the age.

  FIG. 6 is an input screen for changing the family structure. Here, for example, “One child may increase after two years,” “Let me call my grandma after five years,” and so on. In addition to the family structure, the future family structure is considered and, if necessary, the future housemate is input. In the screen of FIG. 6, couples, children, and grandparents are displayed as pictures so that their gender can be understood, and each of them is an input device (in this example, a mouse may be used to point on the screen in a touch panel format). The data can be input by selecting the pattern.

  7 to 11 are input screens for life information (lifestyle). In the center of the screen, five options (tags) such as LD, kitchen, master bedroom / western room, Japanese-style room / storage, etc. are displayed. It is configured to instruct and select a way of life.

  The lifestyle information (lifestyle) input is selected as a lifestyle information input item, and the way of living in a questionnaire format is selected (the lifestyle image that the prospective occupant is supposed to have and items about the lifestyle) It is done by instructing. This is the second feature of the present invention.

  For example, for LD, as shown in FIG. 7, “the living room is the first priority,” “I want to enjoy the video slowly on a large-screen TV.” , “I want to have a home party inviting people”, “I often do homework and work in the living room”, “I want to connect the living room to other rooms and use it in the future”, “The living room is a living room Nine items are displayed: “It is also a space”, “I want to use LDK as an integrated space”, and “It is convenient to use the dining room and living room separately”. Nine items as shown in FIG. 8 are displayed for the kitchen, FIG. 9 for the main bedroom / western room, FIG. 10 for the Japanese-style room / housing, and FIG. 11 for the other. The customer inputs life information (lifestyle) by selecting these items. Since each item is in a so-called questionnaire format, it is easily familiar to the customer.

  As described above, since the input of life information (lifestyle) by the terminal device 4 is performed by selecting and instructing the way of living displayed on the input screen of the terminal device 4, the person who does not have expertise in the apartment house Even so, there is an effect that the user can easily select a desired floor plan.

  By the way, in the conventional search method based on the floor plan structure, “In the daytime, it is integrated with the room next to the living room, and the child is allowed to play in a large space, and at night, the living room and the next room are partitioned, so that the child can sleep quietly It was difficult for a customer with an image of life like “I want” to try to find a floor plan of their choice.

  For example, in order to search for the floor plan of the above image, it is necessary to first "living room and western room facing the balcony next to each other", and "living room and western room are separated by a movable partition" or " The movable partition must be made of a highly sound-insulating material.

However, it is special to be able to arrange 3 rooms facing the balcony side, and generally up to 2 rooms is the limit, so the floor plan as described above is arranged around the water such as the kitchen in the center of the dwelling unit Otherwise, it is difficult to design, and as a result, when specifying the layout of the functional space, you must select "place the kitchen and other water around the center of the dwelling unit". However, customers usually do not know that.

  Therefore, in this system, instead of the floor plan structure of the dwelling unit, an image of living is input as life information and used as a floor plan search item. In this embodiment, the floor plan as described above is hidden in an item “I want to make the child room a place to go through the living room” in the tag (option) of the main bedroom / western room. The reason for not using the direct expression is that if the direct expression is used, only such a floor plan is extracted. In the present invention, the floor plan is basically extracted in combination with other elements, and a plurality of floor plans extracted by combinations of various living images are compared and examined as a whole. I think that the floor plan should be decided.

  In the life information input screen shown in FIG. 7 to FIG. 11, when the customer selects and instructs an arbitrary item, a check mark is added and the item is selected on the right side of the input screen as shown in FIG. Items are displayed. If the selection is wrong, specify the wrong item in the item field on the right side of the input screen, delete it with the “Delete selected item” instruction button at the lower right of the screen, and select the correct item from the center of the screen again. .

  In the item column on the right side of the input screen, priorities are given so that the upper items are prioritized, and the priorities of the selected items can be set. The priority order is set by selecting an appropriate item in the item column, specifying an up / down arrow (clicking with the mouse), moving the item up and down, and rearranging the priority order.

  When the above input is completed and a search is instructed using the “view search results” instruction button at the lower right of the screen, the search results are displayed. FIG. 13 is an example of a screen that displays search results. As shown in FIG. 13, the search item input by the customer is displayed on the left side of the screen, and a floor plan corresponding to the search item is displayed in the center of the screen. The right side of the screen shows where the displayed floor plan dwelling unit is located in the entire apartment house. In the floor plan, for example, a display of “75b-1” represents that the area of the dwelling unit is 75 square meters, and represents a general feature of the dwelling unit as can be seen from the display of “2LDK All Western-style room”.

  In addition, explanations are posted for each displayed floor plan of the dwelling units, and it is possible to see why this floor plan was extracted for the lifestyle image and the way of living set by the customer. This commentary is also a message from the designer who explains what kind of design ingenuity is being used to realize the lifestyle that customers imagine. Therefore, the customer can understand the life image as a concrete form of living by looking at the explanation, and imagine a new life starting from now.

  FIG. 14 shows an input screen when a conflicting item is instructed as an input item of life information, and FIG. 15 shows a search result in a state where the conflicting item is instructed to be selected. As shown in the item field on the right side of the input screen shown in FIG. 14, regarding LD, “I want to use LDK as an integral space” and “It is convenient to use dining and living separately” are selected, and the kitchen With regard to, “choose a kitchen where you can talk with your family while cooking” and “do not want others to see in the kitchen” are selected, but these are incompatible items.

Therefore, there is no floor plan that satisfies all of these incompatible conditions, but the floor plan is displayed in the search result shown in FIG. This is because the floor plan selection system is configured so as to be able to avoid 0 corresponding search results. In other words, even if the customer inputs life information (lifestyle), if the number of applicable properties is 0, it is harsh.
It is difficult to search again because the reason is not known. Therefore, in this floor plan selection system, when the server device searches the database and the search result becomes zero, first, among the input search items (life information), the customer assigned the priority order. (In the example of FIG. 14, “It is convenient to use dining and living separately” and “I do not want others to see in the kitchen”) are deleted from the search items, and the search is performed again The search results are displayed for the items that the customer ranks higher in the priority order, and the corresponding 0 search results are avoided. This is the third feature of the present invention.

  Also, as shown in FIG. 15, on the left side of the screen showing the search results, the deleted input items “It is convenient to use dining and living separately” and “I do not want others to see in the kitchen” Displayed with a cross. Therefore, the customer can know that the conflicting item has been specified, and it is possible to search again by deleting this, changing the priority order, selecting other items, etc. Since there is no need to input data from the beginning, it is easy to search again.

  On the search result display screen, as shown in FIG. 13 and FIG. 15, an instruction button “search for refinement” is displayed at the upper right of the floor plan display field. When this instruction button is specified (clicked), the narrow search screen is displayed as shown in FIG. 16. Select the number of rooms, area, presence / absence of Japanese-style room, etc., and perform a narrow search to display the search results. Can be made.

  In addition, an instruction button for “change family structure” and an instruction button for “lifestyle change” are displayed on the upper left of the screens of FIGS. 4 to 16, and further, an instruction for “change family structure” is displayed in FIGS. Below the button, the currently entered family structure is displayed as a picture. And if there is an error in the family structure that is the resident information, the input screen will be displayed with the “Change Family Structure” instruction button, so change it, and if there is an error in the specified lifestyle item that is the living information If the user wants to change the priority order, the input screen is displayed by the “lifestyle change” instruction button, and the correction is changed.

  Further, the customer can view the details by selecting the floor plan to which attention is paid (click the floor plan that he / she likes on the search result display screen). FIG. 17 displays the details of the selected floor plan. There are selection items on the left side of the screen. For example, when furniture layout simulation is selected, a furniture pattern is displayed on the right side of the screen, as shown in FIG. 18, and clicked with the mouse as shown in FIG. The convenience of each room can be confirmed by moving. When the virtual model room is selected, the interior of the dwelling unit can be seen in three dimensions as shown in FIGS.

  When this system is operated in a model room of a condominium, it is possible to output a furniture layout simulation program to a storage medium such as a CD-R, and the dimensions of the furniture can be changed. The furniture arrangement can be confirmed while checking the furniture dimensions.

It is a block diagram of the floor-plan selection system of an apartment house concerning the present invention. It is a figure explaining operation | movement of the search in the said floor plan selection system. It is a code table which associates each item of life information with a floor plan. It is an initial screen displayed on a terminal device. It is an input screen for inputting a family structure. It is an input screen for changing a family structure. It is an input screen of the life information about "LD". It is an input screen of life information about "kitchen". It is an input screen of living information about “main bedroom / western room”. It is an input screen of living information about “Japanese room / storage”. It is an input screen of life information about “Others”. It is an input screen which shows an input example. It is a screen which displays a search result. It is an input screen which shows the example of an input of the conflicting item. It is a screen which displays the search result by the conflicting item. It is an input screen for performing a refined search. There is a screen that displays the details of the selected floor plan. It is an input screen for performing furniture arrangement simulation. It is a screen which displays the arrangement | positioning operation | movement of furniture. It is a screen which displays a virtual model room. It is a screen which displays a virtual model room.

Explanation of symbols

1 database 2 server device 3 communication network 4 terminal device

Claims (4)

  It has a database that records data such as floor plans of dwelling units, a server device that manages the database, and a terminal device that can be connected to the server device via a communication network, and resident information (family structure) from the terminal device A system for selecting a floor plan for an apartment house that extracts a floor plan of a dwelling unit corresponding to a condition input with priority on living information by inputting living information (lifestyle) and displays it on a terminal device. In the database, life information is stored in the form of a questionnaire on how to live and is associated with the floor plan of the dwelling unit. The life information input by the terminal device is displayed on the input screen of the terminal device. A system for selecting a floor plan of an apartment house, which is performed by instructing selection.   A plurality of choices such as LD, kitchen, master bedroom / western room, Japanese-style room / storage, etc. are displayed on the input screen of the terminal device, and it is configured to select and instruct a way of life for each choice. The floor plan selection system for an apartment house according to claim 1.   In the input screen of the terminal device, it is possible to prioritize the way of life that has been instructed to select, and if there is no floor plan that meets all of the conditions instructed to select, the input items with lower priority are deleted, and again The floor plan selection system according to claim 2, wherein the system is configured to be searched.   The floor plan selection system according to claim 3, wherein the deleted input item is displayed on a screen that displays a search result of the terminal device.