Communication control device, terminal device, communication system, method for receiving call signals, and program

Abstract

To stably establish a communication with a terminal device.SOLUTION: A communication control device used in a medical treatment facility is connected with a terminal device so as to enable a communication via a first line and a second line. The communication control device sends a first calling signal via the first line to the terminal device upon detection of a calling from a calling terminal installed in the medical treatment facility, and sends a second calling signal via the second line to the terminal device after the sending or at the same time of the sending.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure relates to a communication control device, a terminal device, a communication system, a call signal reception method, and a program.

Background Art

[0002] Patent Document 1 discloses a nurse call system capable of assisting in improving call quality. The nurse call system includes a nurse call sub-unit, a nurse call main unit, a mobile terminal carried by a medical staff, and a control unit that controls communication between the nurse call sub-unit, the nurse call main unit, and the mobile terminal. The mobile terminal can select a first call mode that enables a call connection between the mobile terminal and the nurse call sub-unit via an external public switched telephone network, and a second call mode that enables a call connection between the mobile terminal and the nurse call sub-unit via a local communication network constructed within the hospital.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventionally, in hospitals, schools, factories, etc., mobile terminals may be used for two purposes: receiving data such as medical records or manuals, and receiving incoming calls from other terminals for calls.

[0005] In Patent Document 1, when the mobile terminal is communicably connected to the nurse call sub-unit, it pre-selects two communication bands: an external public switched telephone network and a local communication network constructed within the hospital. That is, in Patent Document 1, the mobile terminal receives call signals for both the public switched telephone network and the local communication network.

[0006] However, simultaneously receiving communications from two different communication lines using a mobile device application requires the implementation of a complex system, and some mobile devices are unable to receive communications from two different communication lines simultaneously. Such mobile devices face the challenge of being unable to establish a stable call when receiving incoming calls using communication lines such as Wi-Fi (Local Area Network), which are used for receiving large amounts of data.

[0007] This disclosure was devised in light of the aforementioned conventional circumstances and aims to establish stable communication with terminal devices. [Means for solving the problem]

[0008] This disclosure relates to a communication control device used in a medical facility, Wireless LAN is used for data communication. First line and It is a mobile communication system used for making phone calls. The system is connected to a terminal device via a second line, and when it detects a call from a call terminal installed in the medical facility, it communicates to the terminal device via the first line. This is a signal requesting the establishment of a call. First call signal issued do At the same time, the terminal device is connected via the second line. This is a signal requesting the establishment of a call. The present invention provides a communication control device that transmits a second call signal.

[0009] Furthermore, this disclosure relates to terminal devices used in medical facilities, Wireless LAN is used for data communication. First line and It is a mobile communication system used for making phone calls. It is connected to a communication control device connected to the second line in a communication manner, and the communication control device is connected to the first line via the first line. This is a signal requesting the establishment of a call. When the first call signal is received, Without responding to the first call signal, the line to be connected is disconnected from the first line. A terminal device is provided that switches to the second line.

[0010] Furthermore, this disclosure relates to a communication system used in a medical facility, Wireless LAN is used for data communication. First line and It is a mobile communication system used for making phone calls.The system comprises a communication control device connected to a second line, and at least one terminal device that is communicatively connected to the communication control device through the first line, wherein when the communication control device detects a call from a call terminal installed in the medical facility, it communicates to the terminal device through the first line. This is a signal requesting the establishment of a call. First call signal issued do At the same time, the terminal device is connected via the second line. This is a signal requesting the establishment of a call. The present invention provides a communication system that transmits a second call signal, and when the terminal device receives the first call signal through the first line, switches the connected line from the first line to the second line and receives the second call signal through the second line.

[0011] Furthermore, this disclosure is used in medical facilities. Wireless LAN is used for data communication. First line and, It is a mobile communication system used for making phone calls. A method for receiving a call signal performed by a communication control device that is connected to a terminal device via a second line, wherein a call is detected from a call terminal installed in the medical facility, and the call is transmitted to the terminal device via the first line. This is a signal requesting the establishment of a call. First call signal issued do At the same time, the terminal device is connected via the second line. This is a signal requesting the establishment of a call. The present invention provides a method for receiving a call signal that transmits a second call signal.

[0012] Furthermore, this disclosure is used in medical facilities. Wireless LAN is used for data communication. First line and, It is a mobile communication system used for making phone calls. A communication control device, which is connected to a terminal device via a second line, performs a process to detect a call from a call terminal installed in the medical facility, and communicates to the terminal device via the first line. This is a signal requesting the establishment of a call. Send the first call signal. Then At the same time, the terminal device is connected via the second line. This is a signal requesting the establishment of a call. This provides a program that performs the process of sending a second call signal.

[0013] Note that these general or specific aspects may be implemented in a system, apparatus, method, integrated circuit, computer program, or recording medium, or may be implemented in any combination of a system, apparatus, method, integrated circuit, computer program, and recording medium.

Advantages of the Invention

[0014] According to the present disclosure, a stable call can be established with a terminal device.

Brief Description of the Drawings

[0015] [Figure 1] Hardware configuration diagram of the present embodiment [Figure 2] Diagram showing a modified example of the hardware configuration of the present embodiment [Figure 3] Flowchart of the process of transmitting a call signal according to the present embodiment [Figure 4] Flowchart related to the switching process of the communication line of a communication terminal [Figure 5] Flowchart showing the process of a terminal device switching lines at a predetermined time interval [Figure 6] Diagram showing an example of a screen displayed on a terminal device

Embodiments for Carrying Out the Invention

[0016] Hereinafter, with appropriate reference to the drawings, embodiments specifically disclosing a communication control server, a terminal device, a communication system, a call signal reception method, and a program according to the present disclosure will be described in detail. However, a more detailed description than necessary may be omitted. For example, detailed descriptions of well-known matters and duplicate descriptions of substantially the same configurations may be omitted. This is to avoid making the following description unnecessarily redundant and to facilitate the understanding of those skilled in the art. Note that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0017] <Summary of this disclosure> Traditionally, hospitals have implemented communication systems for use within the facility, and users communicate via terminal devices such as mobile phones. These users are hospital employees, such as doctors or nurses. Users communicate with each other through the communication system and also communicate with patients based on calls from call terminals installed in the hospital, such as nurse call systems.

[0018] In recent years, there has been a need to receive not only phone calls but also electronic data such as patient medical records using applications implemented on terminal devices. Since electronic data has a larger data capacity than phone calls, it is desirable that it be transmitted over a wireless LAN (Wi-Fi®, etc.) network. On the other hand, for the sake of establishing a stable call, it is desirable that phone calls be conducted over a mobile communication network.

[0019] However, there is a challenge in that a terminal device application requires a complex system to simultaneously receive communications from two or more lines. In other words, in such a terminal device application, if the application is connected to a wireless LAN, it cannot receive voice-related signals over the mobile communication line.

[0020] Therefore, the communication control device that controls communication in the communication system relating to this disclosure transmits a signal (hereinafter referred to as a "call signal") that the calling terminal requests the terminal device to establish a call, using two lines: wireless LAN and mobile communication. As a result, the application of the terminal device can switch to the mobile communication line and receive the call signal in response to the call signal received from the wireless LAN line. Hereinafter, the call signal from the wireless LAN will be referred to as the first call signal, and the call signal from mobile communication will be referred to as the second call signal.

[0021] The communication system described herein may be used in medical facilities, offices, factories, or schools. Medical facilities include hospitals, clinics, medical offices, nursing homes, sanatoriums, care facilities, elderly welfare facilities, nursing homes, and other medical-related facilities. For the sake of explanation, the communication system will be described below assuming its use in a hospital, which is one type of medical facility.

[0022] <concept> The hardware configuration diagram of this embodiment will be described with reference to Figure 1. Figure 1 is the hardware configuration diagram of this embodiment.

[0023] The communication system 100A includes a calling terminal 10, an in-hospital server 11, a communication control device 12, an access point 13, a base station 14, and a terminal device 15. When distinguishing between communication systems, a reference code consisting of a number followed by an alphabet is used; when not distinguishing, a reference code consisting of only a number is used.

[0024] The call terminal 10 is a terminal device fixedly installed in a facility where the communication system 100 is introduced, or a terminal device carried by an employee. A fixedly installed terminal device is, for example, a nurse call system, which is installed at each patient's bed. There may be one or more call terminals 10, and they are not limited to being installed at bedsides, as long as they are within reach of the person who wants to make a call. The call terminal 10 transmits a call signal to the communication control device 12, linking it to the call terminal 10's identification number. The call terminal 10 may be connected to the communication control device 12 by wireless communication or by wired communication. The call terminal 10 may also be connected to the communication control device 12 in a communicative manner via a repeater (not shown).

[0025] The in-hospital server 11 is, for example, a file server that manages information such as patient medical records. If the communication system is used outside of a hospital, the information managed by the file server (including the in-hospital server 11) will be specific to each facility. For example, it may include data on facility residents, machine manuals, student data, or customer information. The in-hospital server 11 may also be a cloud server. The in-hospital server 11 is connected to the communication control device 12 via a predetermined network. The in-hospital server 11 transmits the stored information to the communication control device 12.

[0026] The communication control device 12 functions as a device that controls the overall communication of the communication system 100A. The communication control device 12 is equipped with a processor. The processor mounted on the communication control device 12 is a semiconductor chip on which at least one of the following electronic devices is implemented: CPU (Central Processing Unit), DSP (Digital Signal Processor), GPU (Graphical Processing Unit), FPGA (Field Programmable Gate Array), etc. The communication control device 12 performs data input / output processing, data calculation processing, and data storage processing between the calling terminal 10, the hospital server 11, the access point 13, and the base station 14. The communication control device 12 further has memory and may use the RAM (Random Access Memory) of the memory during operation to temporarily store data generated or acquired by the communication control device 12 in the RAM of the memory. When the communication control device 12 receives a call signal from the calling terminal 10, it sends a first call signal to the access point 13 and a second call signal to the base station 14. The communication control device 12 sends information acquired from the hospital server 11 to the access point 13.

[0027] Access point 13 is a device that converts between wired LAN and wireless LAN. Access point 13 is connected to communication control device 12 via wired LAN and converts the first call signal from communication control device 12 into a signal for wireless LAN and transmits it to terminal device 15. Note that access point 13 may be omitted from the configuration of communication system 100. If access point 13 is omitted from the configuration of communication system 100, communication control device 12 will directly communicate with terminal device 15 using wireless LAN. Alternatively, access point 13 may be a relay for wireless LAN communication between communication control device 12 and terminal device 15. The wireless LAN conforms to standards such as "IEEE 802.11a", "IEEE 802.11b", "IEEE 802.11g", "IEEE 802.11n", "IEEE 802.11ax", or "IEEE 802.11ac". The wireless LAN conforms to standards such as Wi-Fi (registered trademark). Based on the call signal from the communication control device 12, the access point 13 transmits a first call signal to the terminal device 15 via the wireless LAN line. The wireless LAN line may be interpreted as the first line.

[0028] Base station 14 is a device that controls communication via mobile communications. Base station 14 controls a local wireless communication network within the hospital. The local wireless communication network conforms to the sXGP (shared eXtended Global Platform), which is a TD-LTE (Time Division-Long Term Evolution) standard using the 1.9 [GHz] frequency band. Mobile communications may be LTE, 3G (third-generation mobile communication system), 4G (fourth-generation mobile communication system), 5G (fifth-generation mobile communication system), local 5G, local network, etc. Base station 14 may also conduct wireless communication with a public base station (not shown) using a public line. Based on a second call signal from the communication control device 12, base station 14 transmits a second call signal to the terminal device 15 through the mobile communication line. The mobile communication line may be read as the second line.

[0029] The communication bandwidth of the first line may be wider than that of the second line. On the other hand, the mobility (e.g., handover performance) and / or communication quality (e.g., QoS performance) of the second line may be better than that of the first line. In other words, the second line may have higher communication stability than the first line. For example, the second line may be a line where wireless communication resource control is performed, while the first line may be a line where wireless communication resource control is not performed. By making the communication bandwidth of the first line wider than that of the second line, data communication can be performed on the first line, which is suitable for high-capacity communication, and when an outgoing call is made, the incoming call can be received on the second line, which is different from the first line, which may be congested with data communication. This makes it possible to balance data communication and incoming call reception. Furthermore, by making the mobility and / or communication quality of the second line better than that of the first line, a stable call can be established by receiving the incoming call on the second line.

[0030] An example of a first circuit, such as a wireless LAN, is a frequency band of 2.4 GHz or 5.0 GHz. An example of a second circuit, such as a mobile communication frequency band, is a frequency band of 1.9 GHz. However, the frequency bands for wireless LAN and mobile communication are not limited to these. The frequency band for wireless LAN may be wider than the frequency band for mobile communication.

[0031] Terminal device 15 is a mobile phone such as a smartphone, tablet, or smartwatch. Terminal device 15 is carried by a doctor or nurse working in the hospital. Terminal device 15 is not limited to one, and may be one or more. If there are multiple terminal devices 15, a group consisting of multiple terminal devices may be formed (hereinafter referred to as a terminal group). Terminal device 15 receives electronic data such as medical records and call signals related to nurse calls or calls from other terminal devices. Terminal device 15 receives a first call signal from access point 13 and a second call signal from base station 14.

[0032] The terminal device 15 has an application (not shown) installed that receives call signals related to phone calls. The application in this embodiment can communicate with one of several communication band lines. In other words, when the application receives call signals related to phone calls, it needs to select either the wireless LAN line or the mobile communication line. Hereinafter, the first call signal and the second call signal will be assumed to be received by the application on the terminal device 15.

[0033] Next, a modified example of the hardware configuration of this embodiment will be described with reference to Figure 2. Figure 2 is a diagram showing a modified example of the hardware configuration of this embodiment. The same reference numerals are used for components that are the same as those in the hardware configuration of Figure 1, and their explanations will be omitted.

[0034] The communication system 100B includes a calling terminal 10, a communication control device 12A, a communication control device 12B, an access point 13, an in-hospital server 11, a base station 14, and a terminal device 15.

[0035] The calling terminal 10 transmits a calling signal to the communication control device 12A and the communication control device 12B, respectively.

[0036] The communication control device 12A controls the first call signal transmitted via the wireless LAN line. Based on the call signal received from the calling terminal 10, the communication control device 12A transmits the first call signal to the access point 13.

[0037] The communication control device 12B controls the second call signal transmitted through the mobile communication line. Based on the call signal received from the calling terminal 10, the communication control device 12B transmits the second call signal to the base station 14.

[0038] As described above, the communication system 100B controls communication via the wireless LAN line and communication via the mobile communication line using different communication control devices 12A and 12B, respectively.

[0039] Next, with reference to Figure 3, the process of transmitting a call signal according to this embodiment will be described. Figure 3 is a flowchart of the process of transmitting a call signal according to this embodiment. Each process in the flowchart of Figure 3 is executed by the communication control device 12.

[0040] The communication control device 12 detects a call signal from the calling terminal 10 (St100).

[0041] The communication control device 12 selects a terminal group to which to send the call signal detected in step St100 (St101). Note that the communication control device 12 may send the call signal to a single terminal device 15 instead of a terminal group. The terminal group or terminal device 15 to which to send the call signal may be assigned to the calling terminal in advance by the user, or it may be selected based on the location of the terminal device 15 (i.e., the access point 13 to which the terminal device 15 is connected).

[0042] The communication control device 12 transmits a first call signal via the wireless LAN line to the terminal group selected in step St101 (St102).

[0043] The communication control device 12 switches to mobile communication and performs a pre-response transfer, and sends a second call signal to the terminal group selected in step St101 (St103).

[0044] The following describes the three methods for transmitting the second call signal related to the processing in step St103.

[0045] After processing steps St100 and St101, the communication control device 12 may simultaneously transmit a first call signal via the wireless LAN line and a second call signal via mobile communication to the terminal group. Based on the received first call signal, the terminal device 15 switches from the wireless LAN line to the mobile communication line. This allows the terminal device 15 to receive the second call signal.

[0046] After processing in steps St100 and St101, the communication control device 12 may transmit only the first call signal over the wireless LAN line to the terminal group. The terminal device 15 included in the terminal group switches from the wireless LAN line to the mobile communication line based on the received first call signal. After a predetermined time has elapsed since transmitting the first call signal in step St102, the communication control device 12 switches to the mobile communication line and transmits the second call signal to the terminal group. The predetermined time is, for example, 1 second or 500 milliseconds. Note that the predetermined time is just an example and is not limited to these. As a result, the terminal device 15 included in the terminal group can receive the second call signal.

[0047] Furthermore, if the communication control device 12 transmits only the first call signal over the wireless LAN line to the terminal group, the terminal device 15 included in the terminal group may transmit an error signal to the communication control device 12 based on the received first call signal. The terminal device 15 then switches to the mobile communication line. Based on the received error signal, the communication control device 12 switches from the wireless LAN line to the mobile communication line and transmits a second call signal to the terminal group. As a result, the terminal device 15 included in the terminal group can receive the second call signal.

[0048] The communication control device 12 determines whether a call has been established with any of the terminal devices 15 included in the terminal group (St104).

[0049] If the communication control device 12 determines that a call has been established with any of the terminal devices 15 included in the terminal group (St104, YES), it terminates the process.

[0050] If the communication control device 12 determines that a call has not been established with any of the terminal devices 15 included in the terminal group (St104, NO), it selects another terminal group (St105). In addition to selecting another terminal group, it may also attempt to connect with an external terminal or device.

[0051] After the processing in step St105, the communication control device 12 returns to the processing in step St102. Then, the communication control device 12 performs the processing in step St102 for the other terminal groups selected in the processing in step St105.

[0052] As a result, the communication control device 12 transmits a first call signal to the terminal device 15, and transmits a second call signal at the same time as or after the transmission of the first call signal. Based on the first call signal received from the communication control device 12, the terminal device 15 switches from the wireless LAN line to the mobile communication line. Therefore, the communication control device 12 can establish a call between the calling terminal 10 and the terminal device 15 over the mobile communication line.

[0053] Next, the switching process for the communication line of the terminal device will be explained with reference to Figure 4. Figure 4 is a flowchart relating to the switching process for the communication line of the communication terminal. Each process in the flowchart of Figure 4 is executed by the terminal device 15.

[0054] The terminal device 15 determines whether the line currently being used for communication is a mobile communication line (St200).

[0055] If the terminal device 15 determines that the line it is currently communicating on is a mobile communication line (St200, YES), it receives a second call signal from the communication control device 12 and establishes a call (St201).

[0056] If the terminal device 15 determines that the line it is currently communicating on is not a mobile communication line (St200, NO), it switches to a mobile communication line in accordance with the first call signal from the communication control device 12 via the wireless LAN line (St202).

[0057] The terminal device 15 determines whether or not it has switched to a mobile communication line (St203).

[0058] If the terminal device 15 determines that it has switched to a mobile communication line (St203, YES), it receives a second call signal from the communication control device 12 and establishes a call (St201).

[0059] If terminal device 15 determines that it has not switched to a mobile communication line (St203, NO), it terminates the switch to the mobile communication line (St204).

[0060] As a result, the terminal device 15 can switch from the wireless LAN line to the mobile communication line based on the first call signal received from the communication control device 12. Therefore, the terminal device 15 can stably establish a call with the calling terminal 10 through the mobile communication line.

[0061] Figure 4 illustrates that the terminal device 15 performs line switching and call establishment based on the line it is currently communicating on. However, the terminal device 15 may also perform line switching and call establishment based on whether it receives the first call signal or the second call signal. In other words, the terminal device 15 can determine the line it is communicating on from the received signal and select the processing to perform based on the received signal.

[0062] Next, with reference to Figure 5, the process by which the terminal device switches lines at predetermined time intervals will be explained. Figure 5 is a flowchart showing the process by which the terminal device switches lines at predetermined time intervals. Each process in the flowchart of Figure 5 is executed by the terminal device 15.

[0063] Terminal device 15 switches from the wireless LAN line to the mobile communication line (St300).

[0064] The terminal device 15 determines whether or not it has received a second call signal from the communication control device 12 (St301).

[0065] If the terminal device 15 determines that it has received a second call signal from the communication control device 12 (St301, YES), it establishes a call (St302).

[0066] If the terminal device 15 determines that it has not received a second call signal from the communication control device 12 (St301, NO), it switches from the mobile communication line to the wireless LAN line (St303).

[0067] The terminal device 15 determines whether a predetermined time has elapsed (St304).

[0068] If the terminal device 15 determines that a predetermined time has not elapsed (St304, NO), it executes the process in step St304 again.

[0069] If terminal device 15 determines that a predetermined time has elapsed (St304, YES), the processing of terminal device 15 returns to the processing of step St300.

[0070] In this way, by repeatedly switching to mobile communication for short periods to check for the presence or absence of a call signal, it is possible to respond to call signals sent via mobile communication while simultaneously performing data communication via wireless LAN. Furthermore, as a result, the terminal device 15 switches between the wireless LAN line and the mobile communication line at predetermined time intervals, allowing it to receive a second call signal from the communication control device 12 and establish a call.

[0071] Next, an example of a screen displayed on the terminal device 15 will be described with reference to Figure 6. Figure 6 is a diagram showing an example of a screen displayed on the terminal device 15.

[0072] When the communication control device 12 receives a call signal from the calling terminal 10 or establishes a call with the calling terminal 10, it may obtain information such as the patient's medical record from the in-hospital server 11 and transmit it to the terminal device 15. The terminal device 15 displays the information received from the communication control device 12.

[0073] Screen MN is an example of the screen displayed when terminal device 15 receives a second call signal.

[0074] Display area IN1 displays the patient's medical record number "111111100000", the patient's name "Patient Taro", and the patient's age "45 years old".

[0075] The facial image FC displays an image of the patient's face. Alternatively, the facial image FC may display the patient's current image.

[0076] Display area IN2 displays the patient's biometric data.

[0077] Display area IN3 shows patient medical record information.

[0078] Button BT is used to start a call in response to an incoming call.

[0079] The content displayed on screen MN is just an example and is not limited to these examples. Furthermore, while this example shows patient medical record information, the information displayed can vary depending on the facility or location where the communication control device 12 is installed.

[0080] As described above, the communication control device according to this embodiment (for example, the communication control device 12) is a communication control device used in a medical facility and is connected to a terminal device (for example, the terminal device 15) via a first line and a second line so as to be communicative. When the communication control device detects a call from a call terminal (for example, a call terminal 10) installed in the medical facility, it transmits a first call signal to the terminal device via the first line, and after or simultaneously with the first transmission, transmits a second call signal to the terminal device via the second line.

[0081] This allows the communication control device to transmit call signals to the terminal device via multiple communication lines with different communication bandwidths, specifically the first and second lines. The terminal device switches to the second line based on the first call signal transmitted through the first line. This enables the communication control device to reliably establish a call between the calling terminal and the terminal device.

[0082] Furthermore, the communication bandwidth of the first line of the communication control device according to this embodiment is wider than the communication bandwidth of the second line. This allows the communication control device to handle both data transmission and incoming call reception simultaneously.

[0083] Furthermore, if the communication control device according to this embodiment determines that it has failed to establish a call with a terminal device in response to a second call signal transmitted through the second line, it will first transmit a first call signal to another terminal device through the first line, and then transmit a second call signal to that other terminal device through the second line. This allows the communication control device to attempt to establish a call with another terminal group even if it is unable to establish a call with the terminal group that transmitted the second call signal.

[0084] Furthermore, the communication control device according to this embodiment transmits a first call signal to the terminal device via the first line, and if it determines that there is no response from the terminal device for a predetermined time, it transmits a second call signal to the terminal device via the second line. As a result, the communication control device transmits the second call signal after a predetermined time has elapsed since the first call signal was transmitted, thereby enabling a stable communication between the calling terminal and the terminal device.

[0085] Furthermore, when the communication control device according to this embodiment receives a response to the first call signal from the terminal device, it stops transmitting the first call signal and transmits a second call signal to the terminal device. As a result, the communication control device can transmit a second call signal to the terminal device via the second line based on the response signal from the terminal device. This enables the communication control device to stably establish a call between the calling terminal and the terminal device.

[0086] Furthermore, the first line in this embodiment is a wireless LAN, and the second line is a mobile communication line. This allows the communication control device to stably establish a call between the calling terminal and the terminal device via the mobile communication line.

[0087] Furthermore, the terminal device according to this embodiment is a terminal device used in a medical facility and is communicatively connected to a communication control device connected to a first line and a second line. When the terminal device receives a first call signal from the communication control device via the first line, it switches to the second line. As a result, the terminal device can stably establish a call with the calling terminal via the second line.

[0088] Furthermore, when the terminal device according to this embodiment receives a first call signal through the first line, it transmits a signal to the communication control device indicating confirmation of reception and switches to the second line. As a result, the terminal device can stably establish a call with the calling terminal through the second line by switching to the second line based on the received first call signal.

[0089] Furthermore, when the terminal device according to this embodiment receives a first call signal through the first line, it does not respond to the first call signal but switches to the second line. As a result, the terminal device can stably establish a call with the calling terminal through the second line by switching to the second line based on the received first call signal.

[0090] Furthermore, the terminal device according to this embodiment switches between the first line and the second line at predetermined time intervals. As a result, the terminal device receives the second call signal at the time it switches to the second line, and can stably establish a call with the calling terminal through the second line.

[0091] Furthermore, the communication system according to this embodiment (for example, communication system 100) is a communication system used in a medical facility and comprises a communication control device connected to a first line and a second line, and at least one terminal device that is communicatively connected to a communication control server via the first line. When the communication control device detects a call from a call terminal installed in the medical facility, it transmits a first call signal to the terminal device via the first line, and after or simultaneously with the first transmission, transmits a second call signal to the terminal device via the second line. When the terminal device receives the first call signal via the first line, it switches the connected line from the first line to the second line and receives the second call signal via the second line. As a result, the communication control device can transmit call signals to the terminal device via communication lines with multiple communication bandwidths between the first line and the second line. The terminal device switches to the second line based on the first call signal transmitted via the first line. Therefore, the communication system can stably establish a call between the call terminal and the terminal device.

[0092] While embodiments have been described above with reference to the attached drawings, this disclosure is not limited to such examples. It is clear to those skilled in the art that various modifications, alterations, substitutions, additions, deletions, and equivalents can be conceived within the scope of the claims, and these are also understood to fall within the technical scope of this disclosure. Furthermore, the components of the embodiments described above can be combined in any way without departing from the spirit of the invention. [Industrial applicability]

[0093] The technology disclosed herein is useful as a communication control device, terminal device, communication system, call signal receiving method, and program for establishing stable communication with a terminal device. [Explanation of Symbols]

[0094] 10 Calling terminal 11. Hospital Server 12, 12A, 12B Communication control device 13 Access Points 14 Base station 15 Terminal devices 100, 100A, 100B communication system MN screen IN1,IN2,IN3 display area FC Face Images

Claims

1. A communication control device used in a medical facility, It is connected to the terminal device in a communicative manner via a first line, which is a wireless LAN used for data communication, and a second line, which is a mobile communication used for voice calls. When a call is detected from a call terminal installed in the medical facility, a first call signal is transmitted to the terminal device requesting the establishment of a call via the first line, and at the same time, a second call signal is transmitted to the terminal device requesting the establishment of a call via the second line. Communication control device.

2. The communication bandwidth of the first line is wider than the communication bandwidth of the second line. The communication control device according to claim 1.

3. If it is determined that a call has not been established with the terminal device in response to the second call signal transmitted through the second line, the first call signal is transmitted to another terminal device through the first line, and then the second call signal is transmitted to the other terminal device through the second line. The communication control device according to claim 1.

4. After transmitting the first call signal to the terminal device via the first line, if it is determined that there is no response from the terminal device for a predetermined time, a second call signal is transmitted to the terminal device via the second line. The communication control device according to claim 1.

5. When a response to the first call signal is received from the terminal device, the transmission of the first call signal is stopped, and a second call signal is transmitted to the terminal device. The communication control device according to claim 1.

6. A terminal device used in a medical facility, It is connected to a communication control device that is connected to the first line, which is a wireless LAN used for data communication, and the second line, which is a mobile communication used for voice calls. When a first call signal, which is a signal requesting the establishment of a call through the first line, is received from the communication control device, the system will not respond to the first call signal and will switch the connected line from the first line to the second line. Terminal device.

7. The communication bandwidth of the first line is wider than the communication bandwidth of the second line. The terminal device according to claim 6.

8. Switching between the first line and the second line at predetermined time intervals. The terminal device according to claim 6.

9. A communication system used in medical facilities, A communication control device connected to a first line, which is a wireless LAN used for data communication, and a second line, which is a mobile communication used for voice calls, The system comprises at least one terminal device that is communicably connected to the communication control device through the first line, When the communication control device detects a call from a call terminal installed in the medical facility, it transmits a first call signal to the terminal device requesting the establishment of a call via the first line, and at the same time transmits a second call signal to the terminal device requesting the establishment of a call via the second line. When the terminal device receives the first call signal through the first line, it switches the connected line from the first line to the second line and receives the second call signal through the second line. Communication system.

10. A method for receiving call signals performed by a communication control device that is connected to a terminal device in a way that enables communication via a first line, which is a wireless LAN used for data communication in a medical facility, and a second line, which is a mobile communication used for voice calls, The call is detected from a call terminal installed in the aforementioned medical facility. A first call signal is transmitted to the terminal device requesting the establishment of a call through the first line, and at the same time, a second call signal is transmitted to the terminal device requesting the establishment of a call through the second line. Method for receiving call signals.

11. If it is determined that the establishment of a call with the terminal device has failed in response to the second call signal via the second line, The first call signal is transmitted to other terminal devices via the first line. The second call signal is transmitted to the other terminal device via the second line. The method for receiving a call signal according to claim 10.

12. A communication control device, used in a medical facility and connected to a terminal device via a first line which is a wireless LAN used for data communication and a second line which is a mobile communication used for voice calls, A process for detecting a call from a call terminal installed in the aforementioned medical facility, The process involves transmitting a first call signal, which is a signal requesting the terminal device to establish a call through the first line, and simultaneously transmitting a second call signal, which is a signal requesting the terminal device to establish a call through the second line. program.

13. If it is determined that the establishment of a call with the terminal device has failed in response to the second call signal via the second line, The process of transmitting the first call signal to another terminal device via the first line, The communication control device is instructed to perform the process of transmitting the second call signal to the other terminal device via the second line, The program according to claim 12.

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