Accommodation unlocking system

Abstract

To provide an accommodation facility unlocking system usable even in an unmanned accommodation facility.SOLUTION: An accommodation facility unlocking system 1 includes a portable terminal 2 of a user, a smart lock 3 provided at an entrance of an accommodation facility 100, a two-dimension code 4 provided near the smart lock 3 and having accommodation facility information, and a server 5 capable of communicating with the portable terminal 2 and the smart lock 3. The server storage unit 52 of the server 5 stores the reservation information of the user and the accommodation facility information in association with each other. When the camera 22 of the portable terminal 2 photographs the two-dimension code 4, the portable terminal 2 acquires the accommodation facility information. The mobile terminal 2 transmits the reservation information to the server 5 together with the accommodation facility information. When the received reservation information and accommodation facility information match the reservation information and the accommodation facility information stored in the server storage unit 52, the server 5 transmits an unlock signal to the smart lock 3. When receiving the unlock signal, the smart lock 3 is switched from the locked state to the unlocked state.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to an accommodation facility unlocking system. [Background technology]

[0002] Patent Document 1 discloses a lodging system including a program executable on a mobile device carried by a user and a management device. The system of Patent Document 1 is capable of executing a reading process, an access process, a transmission process, and a registration application process. The reading process is a process of reading code information installed inside or outside the lodging facility. The access process is a process of causing the mobile device to access the management device based on the code information. The transmission process is a process of transmitting location-related information from the mobile device to the management device after accessing the management device. The registration application process is a process of allowing the user to apply for registration of accommodation-related information when accessing the management device. Furthermore, the system of Patent Document 1 is capable of executing a determination process and a registration process. The determination process is a process of determining whether the mobile device is within a predetermined range based on the location-related information transmitted from the mobile device. The registration process is a process of registering the requested accommodation information and checking in the user if it is determined that the mobile device is within the predetermined range. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-076212 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, the number of accommodation facilities that do not have employees or managers stationed at the reception desk has been increasing. In order to make such accommodation facilities unmanned, a system is required that switches the accommodation facility's smart lock, which is normally locked, to an unlocked state when the guest is using the facility, in addition to the check-in system.

[0005] To provide an accommodation facility unlocking system that can be used even in unmanned accommodation facilities. [Means for solving the problem]

[0006] The accommodation facility unlocking system of the present disclosure includes a mobile device owned by a user and equipped with a camera; a smart lock installed at the entrance of an accommodation facility and switching between a locked state and an unlocked state; a two-dimensional code having accommodation facility information for the accommodation facility installed near the smart lock; and a server having a memory unit, capable of communicating with the mobile device and the smart lock. The memory unit stores the user's reservation information and the accommodation facility information in association with each other. When the camera of the mobile device captures the two-dimensional code, the mobile device acquires the accommodation facility information based on the captured two-dimensional code. The mobile device transmits the reservation information together with the acquired accommodation facility information to the server. If the received reservation information and accommodation facility information match the reservation information and accommodation facility information stored in the memory unit, the server transmits an unlocking signal to the smart lock. When the smart lock receives the unlocking signal, it switches from the locked state to the unlocked state.

[0007] According to the accommodation facility unlocking system disclosed herein, the smart lock can be switched from a locked state to an unlocked state through communication between a mobile device carried by the user, a server, and the smart lock. Therefore, there is no need for employees or managers to be present at the accommodation facility, which reduces the personnel costs of operating an accommodation facility. Furthermore, users can unlock the smart lock whenever they want to use it without having to hand over a key at the reception desk. Additionally, the accommodation facility unlocking system requires that the mobile device acquire accommodation facility information by capturing a two-dimensional code located near the smart lock. Since the user must be near the smart lock, fraudulent use can be prevented. [Effects of the Invention]

[0008] The present disclosure can provide an accommodation facility unlocking system that can be used even in unmanned accommodation facilities. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic diagram of an accommodation facility unlocking system according to this embodiment. [Figure 2] FIG. 2 is a functional block diagram of the accommodation facility unlocking system. [Figure 3] Figure 3 shows the reservation process sequence for the accommodation facility unlocking system. [Figure 4] FIG. 4 shows the sequence of the unlocking process of the accommodation facility unlocking system. [Figure 5] FIG. 5 shows the sequence of the unlocking process of the accommodation facility unlocking system according to the first modification. [Figure 6] FIG. 6 shows the sequence of the unlocking process of the accommodation facility unlocking system according to the second modification. DETAILED DESCRIPTION OF THE INVENTION

[0010] The accommodation facility unlocking system 1 according to the present disclosure will be described below with reference to the drawings.

[0011] (First embodiment) The accommodation facility unlocking system 1 is a system used in an accommodation facility 100. FIG. 1 is a schematic diagram of the accommodation facility unlocking system 1 according to this embodiment. For the purpose of explanation, FIG. 1 illustrates an example of the entrance to an accommodation facility 100 in which the accommodation facility unlocking system 1 is used. As shown in FIG. 1, the accommodation facility unlocking system 1 includes a mobile terminal 2, a smart lock 3, a two-dimensional code 4, and a server 5. The mobile terminal 2 is a terminal owned by the user. The smart lock 3 and the two-dimensional code 4 are provided in the accommodation facility 100.

[0012] 1, the smart lock 3 is provided at the entrance of the accommodation facility 100. The smart lock 3 is provided, for example, on a door 101 of a room in the accommodation facility 100.

[0013] The smart lock 3 is configured to lock the door 101 of a room in the accommodation facility 100. The smart lock 3 is configured to switch between a locked state and an unlocked state. Under normal circumstances, the smart lock 3 is in a locked state, and the door 101 does not open. When the unlocking process described below is performed, the smart lock 3 switches from the locked state to the unlocked state, and the user can open the door 101 and enter the room.

[0014] The two-dimensional code 4 is provided near the smart lock 3. In this embodiment, a board 41 displaying the two-dimensional code 4 is provided on the door 101 of a room of the accommodation facility 100. The two-dimensional code 4 includes accommodation facility information of the accommodation facility 100. The accommodation facility information may include, in addition to identification information of the room in which the two-dimensional code 4 is provided, identification information of the accommodation facility 100 and location information of the accommodation facility 100 or the room.

[0015] The server 5 is configured to be able to communicate with the mobile terminal 2 and the smart lock 3 via a communication network N. The server 5 may be provided within the accommodation facility 100 or may be provided at a location far away from the accommodation facility 100. The communication network N is constructed using, for example, the Internet, a mobile communication network, a LAN (Local Area Network), etc. The communication network N may include not only a wireless communication network but also a wired communication network.

[0016] Fig. 2 is a functional block diagram of the accommodation facility unlocking system 1. As shown in Fig. 2, the mobile terminal 2 has a mobile communication unit 21 and a camera 22. The mobile communication unit 21 is configured to communicate with the server 5 via the communication network N. The camera 22 is capable of capturing an image of the two-dimensional code 4 displayed on the board 41.

[0017] The smart lock 3 has a lock communication unit 31 and a locking unit 32. The lock communication unit 31 is configured to communicate with the server 5 via a communication network N. The locking unit 32 is configured to switch the smart lock 3 between a locked state and an unlocked state.

[0018] The server 5 has a server communication unit 51, a server storage unit 52, and a server control unit 53. The server communication unit 51 is configured to communicate with the mobile communication unit 21 of the mobile terminal 2 and the lock communication unit 31 of the smart lock 3 via the communication network N. The server storage unit 52 stores accommodation facility information of the accommodation facility 100 in which the accommodation facility unlocking system 1 is used. Furthermore, the server storage unit 52 is configured to store the accommodation facility information in association with reservation information, which will be described later.

[0019] The server control unit 53 is configured to control the server communication unit 51 and the server storage unit 52. Furthermore, the server control unit 53 is configured to determine whether or not the information transmitted via the communication network N matches the information stored in the server storage unit 52.

[0020] Next, the processing of the accommodation facility unlocking system 1 according to this embodiment will be described. The processing of the accommodation facility unlocking system 1 includes a reservation process and an unlocking process. The reservation process is performed when a user makes a reservation for the accommodation facility 100. The unlocking process is performed when the user unlocks the smart lock 3 inside the accommodation facility 100.

[0021] First, the reservation process will be described. Hereinafter, as an example of the reservation process, a case where a user reserves the accommodation facility 100 using the mobile terminal 2 owned by the user will be described. However, the reservation process is not limited to this example. The user can reserve the accommodation facility 100 using another device that can communicate with the server 5 instead of the mobile terminal 2.

[0022] Fig. 3 shows the sequence of reservation processing in the accommodation facility unlocking system 1. As shown in Fig. 3, first, the user inputs desired accommodation information into the mobile terminal 2 (S1). The desired accommodation information includes information on the desired accommodation facility and desired accommodation schedule information. The user uses the mobile communication unit 21 of the mobile terminal 2 to transmit the input desired accommodation information to the server communication unit 51 of the server 5 via the communication network N (S2).

[0023] When the server communication unit 51 receives the accommodation preference information transmitted from the mobile terminal 2, the server control unit 53 selects accommodation candidate information that matches the transmitted accommodation preference information from the information stored in the server storage unit 52 (S3). There may be one or more accommodation candidate information. The accommodation candidate information selected by the server control unit 53 is transmitted from the server communication unit 51 to the mobile communication unit 21 (S4). If the user desires a room at one of the accommodation candidate information 100 received, the user generates accommodation decision information indicating this (S5). The user further inputs the user's name and address into the mobile terminal 2 as necessary accommodation information (S6). The user transmits the generated accommodation decision information and the input necessary accommodation information to the server 5 (S7).

[0024] When the server control unit 53 receives the accommodation facility selection information and the necessary accommodation information from the mobile terminal 2, it generates reservation information based on the accommodation facility selection information and the necessary accommodation information (S8). The reservation information includes the user's name and address, accommodation facility information for the accommodation facility 100, and accommodation schedule information. The reservation information is, for example, a string of 10 or more alphanumeric characters. The generated reservation information is transmitted from the server communication unit 51 to the mobile communication unit 21 (S9). In this way, the user acquires the reservation information (S10). Furthermore, the generated reservation information is stored in the server storage unit 52 in association with the accommodation facility information for the accommodation facility 100 selected by the user (S11). In this way, the reservation process is completed.

[0025] Next, the unlocking process will be described. FIG. 4 shows the sequence of the unlocking process of the accommodation facility unlocking system 1. First, the user goes to the reserved accommodation facility 100 on the reserved accommodation date. A smart lock 3 and a two-dimensional code 4 are provided on the room door 101 as the entrance to the accommodation facility 100 (FIG. 1). The user photographs the two-dimensional code 4 provided near the smart lock 3 with the camera 22 of the mobile terminal 2 (S31). When the camera 22 photographs the two-dimensional code 4, the mobile terminal 2 acquires the accommodation facility information contained in the photographed two-dimensional code 4 (S32).

[0026] The user transmits the acquired accommodation facility information and the reservation information acquired in the reservation process from the mobile communication unit 21 to the server 5 via the communication network N (S33).

[0027] The server 5 receives the reservation information and the accommodation facility information from the mobile terminal 2. Thereafter, the server control unit 53 determines whether or not the reservation information and the accommodation facility information received from the mobile terminal 2 match the reservation information and the accommodation facility information stored in the server storage unit 52 (S34). The server 5 may transmit the determination result determined by the server control unit 53 from the server communication unit 51 to the mobile terminal 2 via the communication network N.

[0028] If the server control unit 53 determines that the reservation information and accommodation facility information received from the mobile terminal 2 match the reservation information and accommodation facility information stored in the server memory unit 52, the server 5 transmits an unlocking signal from the server communication unit 51 to the lock communication unit 31 of the smart lock 3 via the communication network N (S35).

[0029] When the smart lock 3 receives the unlock signal from the server 5, it switches from the locked state to the unlocked state (S36). This allows the user to open the door 101 of the accommodation facility 100 and enter the room. This completes the unlocking process.

[0030] As described above, according to the accommodation facility unlocking system 1 of this embodiment, the smart lock 3 can be switched from a locked state to an unlocked state through communication between the mobile terminal 2 carried by the user, the server 5, and the smart lock 3. Therefore, there is no need for an employee or manager to be present at the accommodation facility 100, which reduces the personnel costs of operating the accommodation facility 100. Furthermore, the user can unlock the smart lock 3 whenever they want to use it without having to hand over a key at the reception desk. In addition, the accommodation facility unlocking system 1 requires that the mobile terminal 2 acquire accommodation facility information by photographing a two-dimensional code 4 located near the smart lock 3 as a condition for unlocking. Since the condition requires that the user be near the smart lock 3, fraudulent use can be prevented.

[0031] After receiving an unlock signal from the server 5, the smart lock 3 may switch from the locked state to the unlocked state if it determines that short-range wireless communication between the smart lock 3 and the mobile terminal 2 has been established (S37 in FIG. 4). In other words, the conditions for unlocking the smart lock 3 include not only receiving an unlock signal but also establishing short-range wireless communication between the smart lock 3 and the mobile terminal 2. If the user's mobile terminal 2 is not in the vicinity of the smart lock 3, short-range wireless communication will not be established, which further prevents unauthorized use.

[0032] The unlock signal may be sent from the server 5 to the mobile terminal 2 instead of the smart lock 3. After short-range wireless communication between the smart lock 3 and the mobile terminal 2 is established, the unlock signal may be sent from the mobile terminal 2 to the smart lock 3, and the smart lock 3 may be switched from the locked state to the unlocked state.

[0033] (Variation 1) In the accommodation facility unlocking system 1 of the first embodiment, the two-dimensional code 4 is attached to the board 41 and is always displayed, but the display of the two-dimensional code 4 is not limited to this. The two-dimensional code 4 may be displayed on a display device 6 instead of the board 41 (FIG. 1).

[0034] As shown in FIG. 1, the accommodation facility unlocking system 1A according to the first modification includes a mobile terminal 2, a smart lock 3, a server 5, and a display device 6. The display device 6 is provided near the smart lock 3. In this modification, the display device 6 is placed next to the door 101 of a room in the accommodation facility 100.

[0035] 2, the display device 6 has a display communication unit 61, a display storage unit 62, and a display unit 63. The display communication unit 61 is configured to communicate with the server communication unit 51 of the server 5 via the communication network N. The display communication unit 61 may be configured to communicate with the mobile communication unit 21 of the mobile terminal 2 and the lock communication unit 31 of the smart lock 3 in addition to the server communication unit 51 of the server 5.

[0036] The display storage unit 62 stores display device identification information. The display device identification information may include location information of the display device 6 in addition to information for identifying the display device 6.

[0037] The display unit 63 is configured to receive input from a user. The display unit 63 is further configured to display the two-dimensional code 4 in a release process according to Modification 1, which will be described later. The display unit 63 is, for example, a touch panel.

[0038] The server storage unit 52 stores the display device identification information of the display device 6 in association with the reservation information and accommodation facility information.

[0039] Next, we will explain the processing of the accommodation facility unlocking system 1A according to Modification 1. The reservation processing of the accommodation facility unlocking system 1A according to Modification 1 is the same as the reservation processing of the accommodation facility unlocking system 1 according to the first embodiment, so the explanation will be omitted.

[0040] The unlocking process according to the first modification will be described. FIG. 5 shows the sequence of the unlocking process of the accommodation facility unlocking system 1A according to the first modification. First, the user goes to the reserved accommodation facility 100 on the reserved accommodation date. A smart lock 3 is provided on the room door 101 as the entrance to the accommodation facility 100. Furthermore, a display device 6 is provided next to the room door 101 (FIG. 1). First, the user inputs the reservation information acquired in the reservation process into the display device 6 (S51). The display device 6 acquires the reservation information from the input by the user (S52).

[0041] The display communication unit 61 of the display device 6 transmits the acquired reservation information together with the display device identification information stored in the display storage unit 62 to the server 5 via the communication network N (S53).

[0042] The server 5 receives the reservation information and the display device identification information from the display device 6. Thereafter, the server control unit 53 determines whether or not the reservation information and the display device identification information received from the display device 6 match the reservation information and the display device identification information stored in the server storage unit 52 (S54). The server 5 may transmit the display device determination result determined by the server control unit 53 from the server communication unit 51 to the display device 6 via the communication network N.

[0043] If the server control unit 53 determines that the reservation information and display device identification information received from the display device 6 match the reservation information and display device identification information stored in the server memory unit 52, the server 5 transmits the two-dimensional code 4 from the server communication unit 51 to the display communication unit 61 of the display device 6 via the communication network N (S55).

[0044] When the display device 6 receives the two-dimensional code 4 from the server 5, it displays the received two-dimensional code 4 on the display unit 63 (S56). The user photographs the two-dimensional code 4 displayed on the display unit 63 of the display device 6 with the camera 22 of the mobile terminal 2 (S31). The subsequent processing is the same as S32 to S36 of the unlocking processing in the first embodiment, and therefore a description thereof will be omitted.

[0045] As explained above, according to the accommodation facility unlocking system 1A of the first modification, the user inputs reservation information, and the two-dimensional code 4 is displayed on the display unit 63 of the display device 6 after the display device determination process. The two-dimensional code 4 is not always displayed, but is displayed on the display unit 63 of the display device 6 after steps S51 to S55 of the unlocking process, so that an accommodation facility unlocking system 1 with high security can be provided.

[0046] According to this modification, the two-dimensional code 4 is transmitted from the server 5 to the display device 6. Since the display device 6 does not need to store the two-dimensional code 4 in the display storage unit 62, the storage capacity of the display storage unit 62 can be small, and the configuration of the display device 6 can be simplified.

[0047] (Variation 2) Instead of inputting reservation information into the display device 6 in Modification 1, one-time authentication information containing less information than the reservation information may be input into the display device 6. In other words, the accommodation facility unlocking system 1B according to Modification 2 is a system in which part of the input and transmission of reservation information in Modification 1 is replaced with the input and transmission of one-time authentication information. The configuration of the accommodation facility unlocking system 1B according to Modification 2 is the same as the configuration of the accommodation facility unlocking system 1A according to Modification 1 (FIGS. 1 and 2), and therefore a description thereof will be omitted.

[0048] A single-use credential is a disposable password that can be used once or for a short period of time. For example, a single-use credential is a one-time password, which is a string of six or fewer letters and numbers.

[0049] The server storage unit 52 stores the one-time authentication information in association with the reservation information, accommodation facility information, and display device identification information of the display device 6.

[0050] Next, the reservation process of the accommodation facility unlocking system 1B according to the modified example 2 will be described with reference to Fig. 3. In the reservation process of the accommodation facility unlocking system 1B according to the modified example 2, in addition to S1 to S10 of the reservation process of the accommodation facility unlocking system 1 according to the first embodiment, the following process is performed.

[0051] The server control unit 53 generates one-time authentication information based on the reservation information, accommodation facility determination information, and accommodation necessary information (S21). The one-time authentication information may be generated after the reservation information is generated or transmitted, or may be generated before the reservation information is generated or transmitted. The generated one-time authentication information is transmitted from the server communication unit 51 to the mobile communication unit 21 (S22). In this way, the user acquires the one-time authentication information (S23). Furthermore, the generated one-time authentication information is stored in the server storage unit 52 in association with the reservation information, accommodation facility information of the accommodation facility 100 selected by the user, and the display device identification number of the display device 6 installed in the accommodation facility 100 (S24). In this way, the reservation process of the second modification is completed.

[0052] Next, the unlocking process of the accommodation facility unlocking system 1B according to the second modification will be described with reference to FIG. FIG. 6 shows the sequence of the unlocking process of the accommodation facility unlocking system 1B according to the second modification. First, the user goes to the reserved accommodation facility 100 on the reserved accommodation date. A smart lock 3 is provided on the room door 101 as the entrance to the accommodation facility 100. Furthermore, a display device 6 is provided next to the room door 101 (FIG. 1). First, the user inputs the one-time authentication information acquired in the reservation process into the display device 6 (S71). The display device 6 acquires the one-time authentication information from the input by the user (S72).

[0053] The display communication unit 61 of the display device 6 transmits the acquired one-time authentication information together with the display device identification information stored in the display storage unit 62 to the server 5 via the communication network N (S73).

[0054] The server 5 receives the one-shot authentication information and the display device identification information from the display device 6. Thereafter, the server control unit 53 determines whether or not the one-shot authentication information and the display device identification information received from the display device 6 match the one-shot authentication information and the display device identification information stored in the server storage unit 52 (S74). The server 5 may transmit the authentication determination result determined by the server control unit 53 to the display device 6 from the server communication unit 51 via the communication network N.

[0055] If the server control unit 53 determines that the one-time authentication information and display device identification information received from the display device 6 match the one-time authentication information and display device identification information stored in the server memory unit 52, the server 5 transmits the two-dimensional code 4 from the server communication unit 51 to the display communication unit 61 of the display device 6 via the communication network N (S55).

[0056] When the display device 6 receives the two-dimensional code 4 from the server 5, it displays the received two-dimensional code 4 on the display unit 63 (S56). The user photographs the two-dimensional code 4 displayed on the display unit 63 of the display device 6 with the camera 22 of the mobile terminal 2 (S31). The subsequent processing is the same as S32 to S36 of the unlocking processing in the first embodiment, and therefore a description thereof will be omitted.

[0057] As described above, according to the accommodation facility unlocking system 1B of the second modification, one-time authentication information is input to the display device 6 instead of reservation information, since the user only needs to input one-time authentication information, which is a string of 6 or less alphanumeric characters, into the display device 6 instead of reservation information, which is a string of 10 or more alphanumeric characters, the hassle of inputting information is reduced.

[0058] In the unlocking process of Modification 3, the one-time authentication information is input to the display device 6 and the reservation information is transmitted to the server 5, but the input and transmission of information are not limited to this. The user may first input the reservation information to the display device 6, and after the two-dimensional code 4 is displayed on the display unit 63 of the display device 6, transmit the one-time authentication information together with the accommodation facility information to the server 5. Even in such a case, the use of the one-time authentication information reduces the hassle of inputting information compared to inputting the reservation information twice.

[0059] The present disclosure is not limited to the above-described embodiments and modifications, and can be freely modified, improved, etc. The materials, shapes, dimensions, numerical values, forms, numbers, locations, etc. of the components in the above-described embodiments are arbitrary and not limited as long as they can achieve the present invention. [Explanation of symbols]

[0060] 1, 1A, 1B Accommodation unlocking system 2. Mobile devices 21 Mobile Communications Department 22 Camera 3. Smart Lock 31 Lock Communication Department 32 Locking section 4. 2D code 41 Board 5 Server 51 Server Communication Department 52 Server storage unit 53 Server control unit 6 Display device 61 Display communication unit 62 Display memory section 63 Display section 100 accommodations 101 Door

Claims

1. a mobile terminal owned by a user and having a camera; A smart lock is installed at the entrance of the accommodation facility and switches between locked and unlocked states. A two-dimensional code provided near the smart lock and having accommodation information of the accommodation facility; An accommodation facility unlocking system comprising: a server capable of communicating with the mobile terminal and the smart lock and having a memory unit; the storage unit stores the reservation information of the user and the accommodation facility information in association with each other; When the camera of the mobile terminal captures the two-dimensional code, the mobile terminal acquires the accommodation facility information based on the captured two-dimensional code, The mobile terminal transmits the reservation information together with the acquired accommodation facility information to the server, If the received reservation information and accommodation facility information match the reservation information and accommodation facility information stored in the storage unit, the server sends an unlocking signal to the smart lock, The smart lock switches from the locked state to the unlocked state upon receiving the unlock signal, in this accommodation facility unlocking system.

2. The accommodation facility unlocking system of claim 1, wherein the smart lock receives the unlocking signal from the server and switches from the locked state to the unlocked state when the smart lock and the mobile terminal establish short-range wireless communication.

3. The smart lock further includes a display device provided near the smart lock and having a display unit and a display memory unit that stores display device identification information. the storage unit stores the display device identification information in association with the reservation information and the accommodation facility information; When the display device acquires the reservation information through input from the user, the display device transmits the acquired reservation information together with the display device identification information stored in the display storage unit to the server; the server transmits the two-dimensional code to the display device when the received reservation information and the display device identification information match the reservation information and the display device identification information stored in the storage unit; The accommodation facility unlocking system according to claim 1 or 2, wherein the display device, upon receiving the two-dimensional code, displays the received two-dimensional code on the display unit.

4. The smart lock further includes a display device provided near the smart lock and having a display unit and a display memory unit that stores display device identification information. the storage unit stores the display device identification information in association with the reservation information and the accommodation facility information, together with one-shot authentication information having a smaller amount of information than the reservation information; When the display device receives the one-time authentication information input by the user, the display device sends the received one-time authentication information together with the display device identification information stored in the display storage unit to the server; the server sends the two-dimensional code to the display device when the received one-shot authentication information and the display device identification information match the one-shot authentication information and the display device identification information stored in the storage unit; The accommodation facility unlocking system according to claim 1 or 2, wherein the display device, upon receiving the two-dimensional code, displays the received two-dimensional code on the display unit.

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