JP2016042901A - Call availability estimation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a call availability estimation system that can accurately grasp whether or not it is a good situation of calling a healthcare worker of a call request partner as much as possible.SOLUTION: A call availability estimation system includes: an availability information storage unit 16 previously storing call availability information in association with two or more positions in facilities; a positional information memory unit 15 for acquiring positional information of a healthcare worker detected by a tag reader 6, and storing the information in association with a healthcare worker ID at any time; an availability information acquisition unit 13 for acquiring a position where a call request partner is present from the positional information memory unit 15 when the operation of selecting the healthcare worker of the call request partner is performed in a mobile terminal 10, and acquiring the call availability information corresponding to the position acquired from the availability information storage unit 16; and a display control unit 103 for making a display unit 105 of the mobile terminal 10 display the call availability information acquired. Even if the healthcare worker of the call request partner is present in the position other than a hospital room, the call availability information according to the position is shown in the display unit 105.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a call availability estimation system, and more particularly to an in-facility call system that is capable of making a call between portable terminals possessed by medical staff in the facility, and to the other medical staff. It is suitable for use in a system that estimates whether or not a call can be made.

  As is well known, in hospitals and welfare care facilities, nurse call systems are mainly installed to allow nurses (such as caregivers at welfare care facilities) to talk to patients. In this nurse call system, each bed is equipped with a nurse call slave unit that is used by the patient for calling, and a nurse call master unit is installed in the nurse station so that calls and calls can be made between them. It has become.

  In recent years, a nurse has a PHS (Personal Handyphone System) type mobile terminal that is linked to a nurse call master unit via a cordless main unit and a radio base station, and calls and calls with a nurse call slave unit held by a patient More and more systems are used.

  In a system that employs a mobile terminal, in response to a nurse call from a single patient, a ringing tone is generated simultaneously on multiple mobile terminals or at a predetermined time, and the nurse who responds first can talk to the patient. Designed to be However, when a call from a patient occurs, even if the nurse is engaged in work that cannot be released by nursing other patients, the ringing tone of the portable terminal is sounded. If the mobile terminal rings, you have no choice but to interrupt the nursing service you are engaged in and respond, or ignore the call and continue the nursing service.

  Conventionally, when a nurse enters a hospital room and leaves such a problem, the nurse can read the nurse identification number and the entry / exit distinction using a non-contact IC card. A technique has been proposed in which it is detected that a nurse in the hospital room is busy and the nurse does not call the mobile terminal possessed by the nurse (see, for example, Patent Document 1). .

  By the way, a nurse may make an inquiry to a doctor or a nurse may make an inquiry to another nurse using a mobile terminal. In this case, there is a case where the other party takes care of the other party and refrains from inquiring in anticipation that the other party is busy. However, this expectation was not always correct, and in fact, the other party was not busy, and the inquiries were withheld.

  On the other hand, if the technique described in Patent Document 1 is applied, when it is detected that the other party who wants to make an inquiry is in a sickroom, the other party is assumed to be busy and the inquiry is refrained. Can be.

  However, in the technique described in Patent Document 1, whether or not a medical worker is busy is determined based on whether or not a doctor or a nurse (hereinafter referred to as a medical worker) is in a hospital room. For this reason, when a medical worker is in a place other than a hospital room, there arises a problem that the medical worker makes an erroneous determination that the medical worker is not busy.

JP 2007-268020 A

  The present invention has been made to solve such a problem, and can ascertain as accurately as possible whether or not it is possible to make a call to a medical worker who wishes to call. The purpose is to.

  In order to solve the above-described problems, in the present invention, whether or not a call can be made in association with a plurality of positions in a facility and whether or not a call can be made when a medical worker is present at the position is determined. Store in advance in the information storage unit. On the other hand, the position of the medical worker in the facility is detected, and the detected positional information is associated with the identification information of the medical worker and stored in the positional information storage unit as needed. Then, when a medical worker who wishes to call is selected on a portable terminal possessed by the medical worker, the position where the desired telephone call partner is located is acquired from the position information storage unit, and call availability information corresponding to the acquired position is determined. The information is acquired from the information storage unit and displayed on the display unit of the portable terminal.

  According to the present invention configured as described above, when a medical worker operates a portable terminal and selects a medical worker who desires a call, depending on where the call requester is located at a plurality of positions in the facility. Then, call availability information indicating whether or not it is possible to make a call to the other party who wants to call is displayed on the display unit of the portable terminal. As a result, even if the medical worker who wishes to talk is in a position other than the hospital room, the call availability information corresponding to that position is presented. It is possible to grasp as accurately as possible whether the situation is good or not.

It is a figure which shows the example of whole structure of the nurse call system which is one Embodiment of the in-facility call system to which the call availability estimation system by this invention is applied. It is a block diagram which shows the function structural example of the nurse call system by this embodiment. It is a figure which shows the example of a display of the call availability information with respect to the display part of the portable terminal by this embodiment. It is a figure which shows the example of a display of the call availability information and status information with respect to the display part of the portable terminal by this embodiment. It is a figure which shows the example of a display of the call availability information, status information, and position name information with respect to the display part of the portable terminal by this embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an example of the overall configuration of a nurse call system which is an embodiment of an in-facility call system to which a call availability estimation system according to the present invention is applied. This nurse call system may be, for example, a nursing support system installed in a hospital or a care support system installed in a care facility.

  As shown in FIG. 1, the nurse call system of this embodiment includes a nurse call master unit 1, a control unit 2, a corridor lamp 3, a wall-embedded slave unit 4, a hand-type slave unit 5, a tag reader 6, and a hand-in-hand call. A main apparatus 7, a private branch exchange (PBX) 8, a radio base station 9, and a portable terminal 10 are provided.

  The nurse call master unit 1 is mainly for performing a response operation to a call from a patient (nurse call slave unit 5), and is installed in a nurse station, for example. In addition, the nurse call parent device 1 according to the present embodiment determines whether or not it is possible to make a call to a medical worker who wants to call in response to a request from the mobile terminal 10 possessed by a certain medical worker. Has a function to estimate. Details of this function will be described later with reference to FIG.

  The control device 2 is arranged between the nurse call master device 1 and the corridor lamp 3, and performs control related to a call and data transmission / reception. The corridor lamp 3 is installed near the entrance of a plurality of positions in the hospital (for example, a hospital room, a conference room, a reception room, an operating room, a medical office, a cafeteria, a rest room, a nap room, etc.) Control related to transmission and reception of calls and data between the slave unit 4 and the tag reader 6 is performed. The corridor lamp 3 has a function of displaying various information.

  In the present embodiment, the corridor lamp 3 is used at any position, but it is not always necessary to use the corridor lamp 3 at all positions. That is, it is only necessary to have at least a function of performing control related to data transmission / reception between the controller 2 and the tag reader 6, and a communication repeater may be used instead of the hallway light 3.

  The wall-embedded slave unit 4 is embedded in each bedside wall of a hospital room. This wall-embedded handset 4 is connected to the corridor lamp 3. The nurse call slave unit 5 is connected to the wall-embedded slave unit 4. The nurse call handset 5 includes a call button for a patient to call a nurse, and a microphone and a speaker used when the patient has a conversation with the nurse.

  The tag reader 6 reads information from the wireless IC tag 20 possessed by a medical worker by wireless communication. This tag reader 6 is connected to the corridor lamp 3. Here, the tag reader 6 is configured separately from the corridor lamp 3 and is connected to the corridor lamp 3. However, the corridor lamp 3 and the tag reader 6 may be configured integrally. .

  The wireless IC tag 20 is also called RFID (Radio Frequency Identification), stores information in a tag with a size of about several centimeters, and communicates with the tag reader 6 by radio waves or electromagnetic waves. The wireless IC tag 20 stores a medical worker ID for identifying a medical worker, and the medical worker ID is read by the tag reader 6.

  The tag reader 6 has position information (for example, a place ID for identifying each place such as a hospital room, a conference room, a reception room, an operating room, a medical office, a canteen, a rest room, a nap room, etc.) ) Is remembered. When the tag reader 6 reads the medical worker ID from the wireless IC tag 20, the tag reader 6 outputs the read medical worker ID and its own location ID to the corridor lamp 3. The corridor lamp 3 transmits the received medical worker ID and location ID to the nurse call master unit 1.

  In addition, when the medical worker ID is first read from the wireless IC tag 20 in the tag reader 6 in a certain place, the room is entered, and when the same medical worker ID is subsequently read from the wireless IC tag 20 by the same tag reader 6, the room is left. You may make it transmit the information which shows distinction of entering / exiting to nurse call main machine 1 with medical worker ID and place ID.

  As described above, in the present embodiment, the tag reader 6 and the wireless IC tag 20 constitute position detection means for detecting the position of the medical worker in the facility. As described above, the nurse call slave unit 5 and the tag reader 6 are connected to the wall-embedded slave unit 4 in the hospital room where the patient enters. On the other hand, in places other than hospital rooms (conference room, reception room, operating room, medical office, cafeteria, rest room, nap room, etc.), the nurse call handset 5 is not connected to the wall-mounted handset 4 and the tag reader Only 6 are connected.

  The handheld squall main device 7 performs control related to a call and data transmission / reception with the portable terminal 10 possessed by a medical worker via the PBX 8. The main hand call 7 is installed in a communication center in a hospital, for example, and is connected to the nurse call master unit 1. The wireless base station 9 is used for wireless communication of calls and data with the mobile terminal 10 and is connected to the PBX 8.

  The portable terminal 10 is composed of, for example, a PHS terminal or a smartphone, and has a function of responding to a call from the nurse call slave unit 5. In addition, the mobile terminal 10 has a function of making a call with another mobile terminal 10. Furthermore, the mobile terminal 10 according to the present embodiment requests the nurse call parent device 1 to confirm whether or not it is possible to make a call to the medical worker who wishes to call, and displays the result of the confirmation. It has a function to do.

  The nurse call system of the present embodiment configured as described above is a mobile phone possessed by the nurse call master unit 1 or a medical worker installed in the nurse station in response to a call from the nurse call slave unit 5 used by the patient. A response is made at the terminal 10 and a call can be made between the nurse call slave unit 5 and the nurse call master unit 1 or the portable terminal 10.

  In addition, the nurse call system according to the present embodiment makes a call between mobile terminals 10 by calling an extension from a mobile terminal 10 possessed by a certain medical worker to the mobile terminal 10 possessed by another medical worker. It is also possible to do. Furthermore, as will be described in detail below, in this embodiment, when a medical worker attempts to make an inquiry to another medical worker using the mobile terminal 10, a call is made to the other medical worker. The nurse call parent device 1 estimates whether or not it can be performed, and the estimation result can be presented to the mobile terminal 10.

  FIG. 2 is a block diagram showing a functional configuration example of the nurse call system configured as described above. As shown in FIG. 2, the nurse call parent device 1 includes a position information acquisition unit 11, a confirmation request reception unit 12, an availability information acquisition unit 13, and an availability information transmission unit 14 as functional configurations. The nurse call parent device 1 also includes a position information storage unit 15 and an availability information storage unit 16.

  As illustrated in FIG. 2, the mobile terminal 10 includes a confirmation request transmission unit 101, an availability information reception unit 102, and a display control unit 103 as functional configurations. The mobile terminal 10 includes an operation unit 104 such as a touch panel and operation buttons, and a display unit 105 such as a liquid crystal display.

  Note that each of the functional blocks 11 to 14 of the nurse call parent device 1 can be realized by any of a hardware configuration, a DSP (Digital Signal Processor), and software. For example, when realized by software, each of the functional blocks 11 to 14 is actually configured by including a CPU, RAM, ROM, and the like of a computer, and is stored in a recording medium such as a RAM, ROM, hard disk, or semiconductor memory. Is realized by operating.

  Similarly, the functional blocks 101 to 103 of the mobile terminal 10 can be realized by any of a hardware configuration, a DSP, and software. For example, when realized by software, each of the functional blocks 101 to 103 is actually configured by including a CPU, RAM, ROM, etc. of a computer, and a program stored in a recording medium such as RAM, ROM, hard disk, or semiconductor memory. Is realized by operating.

  The position information acquisition unit 11 of the nurse call parent device 1 acquires the medical worker ID and the location ID sent from the tag reader 6 via the corridor lamp 3 and the controller 2. Then, the position information acquisition unit 11 obtains the place ID, which is the position information indicating the position of the medical worker acquired from the tag reader 6 (that is, detected by the position detecting means), as the medical worker's identification information. In association with the person ID, it is stored in the position information storage unit 15 as needed.

  The availability information storage unit 16 associates with the place IDs representing a plurality of positions in the facility described above, and preliminarily stores call availability information indicating whether or not a call can be made when there is a medical worker at the position. I remember it. This call availability information is either a call OK or a call NG in consideration of whether or not the medical worker is generally busy depending on the contents of activities normally performed in the place where the medical worker is present. Is stored for each of a plurality of positions.

  For example, since a medical staff is expected to be busy because a medical examination or nursing operation is performed in a hospital room, the call availability information of the call NG is stored in advance in association with the location ID of the hospital room. Further, since it is expected that the medical staff is busy in the conference room, the call availability information of the call NG is stored in advance in association with the location ID of the conference room.

  In addition, since it is expected that the medical staff is busy in the reception room because the reception is being performed for the visitor, the call availability information of the call NG is stored in advance in association with the location ID of the reception room. In addition, since it is expected that a medical worker is busy because an operation is performed in the operating room, the call availability information of the call NG is stored in advance in association with the location ID of the operating room.

  In addition, although some work is being performed at the medical office, it is not considered that the medical staff is so busy that he / she cannot respond to the inquiry. Therefore, the call OK / not permitted information of the call OK is stored in advance in association with the location ID of the medical office. . In addition, since meals, breaks, and nap are performed in the cafeteria, break room, and nap room, respectively, it is expected that medical workers are not busy, so call OK is associated with each place ID of the canteen, break room, and nap room. Call availability information is stored in advance.

  The confirmation request transmission unit 101 of the mobile terminal 10 generates confirmation request information for confirming whether or not it is possible to make an inquiry to a medical worker selected according to the operation of the medical worker on the operation unit 104, Sent to the nurse call master unit 1. That is, when a medical worker operates the operation unit 104 to select a medical worker who wants to talk, the confirmation request transmission unit 101 generates confirmation request information including a medical worker ID representing the selected medical worker. To the nurse call master unit 1.

  In addition, the medical worker who wishes to call the user makes an inquiry from the list of medical workers displayed on the display unit 105 based on, for example, electronic phone book data stored in the internal memory of the mobile terminal 10. It is possible for the medical worker who is going to operate to operate the operation unit 104 to select. Alternatively, for example, the extension number of the mobile terminal 10 may be used as the medical worker ID, and the extension of the extension number may be used to select the medical worker who wishes to call. The selection method of the medical staff is not limited to this, and any other method can be adopted.

  The confirmation request receiving unit 12 of the nurse call parent device 1 receives the confirmation request information transmitted from the confirmation request transmitting unit 101 of the mobile terminal 10. The availability information acquisition unit 13 corresponds to the availability information acquisition means of the present invention. When an operation for selecting a desired phone call partner is performed on the mobile terminal 10 possessed by a medical worker, there is the desired phone call partner. The current position is acquired by referring to the position information storage unit 15, and the call availability information stored in the availability information storage unit 16 in association with the acquired position is acquired.

  Specifically, when the confirmation request receiving unit 12 receives the confirmation request information, the availability information acquiring unit 13 refers to the position information storage unit 15 using the medical worker ID included in the confirmation request information as a key. As a result, the position where the call requesting partner indicated by the medical worker ID is present is acquired. That is, the availability information acquisition unit 13 acquires the location ID stored in association with the medical worker ID used as the key from the position information storage unit 15. Then, the availability information acquisition unit 13 acquires the call availability information stored in association with the acquired location ID from the availability information storage unit 16.

  The availability information transmission unit 14 returns the call availability information acquired by the availability information acquisition unit 13 to the mobile terminal 10 that has transmitted the confirmation request information. The availability information receiving unit 102 of the mobile terminal 10 receives the call availability information transmitted by the availability information transmitting unit 14 of the nurse call parent device 1. The display control unit 103 corresponds to the display control unit of the present invention, and the call availability information received by the availability information receiving unit 102 (that is, the call availability information acquired by the availability information acquisition unit) is displayed on the display unit 105. Display.

  FIG. 3 is a diagram illustrating a display example of the call availability information on the display unit 105 of the mobile terminal 10. For example, as shown in FIG. 3, the name of the medical worker selected by the medical worker as the call partner and the call availability information (either call OK or call NG) obtained as a result of the confirmation are displayed on the display unit 105. Display on the screen. As a result, the call availability information is displayed on the display unit 105 depending on where the medical worker wishing to call is located in a hospital room, conference room, reception room, operating room, medical office, canteen, rest room, nap room, etc. Thus, the health care worker is notified of whether the call is OK or NG.

  As described above in detail, in the present embodiment, call availability information indicating whether or not a call can be made when there is a medical worker at the location in association with a plurality of locations in the facility. Stored in the storage unit 16 in advance. On the other hand, the position of each medical worker in the facility is detected using the tag reader 6 and the wireless IC tag 20, and the detected positional information (location ID) is associated with the medical worker ID and stored in the positional information storage unit 15 as needed. To do. And if the medical worker of the other party who wishes to call is selected in the portable terminal 10 possessed by the medical worker, the position where the desired telephone call partner is located is acquired from the position information storage unit 15, and the call availability information corresponding to the acquired position is obtained. Is obtained from the availability information storage unit 16 and displayed on the display unit 105 of the mobile terminal 10.

  According to the present embodiment configured as described above, when a medical worker operates the mobile terminal 10 to select a medical worker who desires a call, depending on where the call requester is located at a plurality of positions in the facility. Thus, the call availability information indicating whether or not it is possible to make a call to the desired party is displayed on the display unit 105 of the mobile terminal 10. Thereby, even if the medical worker of the other party who wishes to call is in a position other than the hospital room, the call availability information corresponding to that position is displayed on the display unit 105 of the mobile terminal 10, so It is possible to grasp as accurately as possible whether or not it is possible to make a call.

  In the above-described embodiment, an example in which the availability information storage unit 16 stores only call availability information in association with a plurality of positions in the facility has been described, but the present invention is not limited to this. For example, when there are medical staff at multiple locations in the facility, situation information indicating what kind of activities the medical staff may be performing is stored in advance together with call availability information. Also good.

  For example, “in consultation or nursing” for a hospital room, “meeting” for a conference room, “meeting” for a reception room, “in operation” for an operating room, “work” for a medical office The status information such as “medium”, “meal” for a cafeteria, “resting” for a rest room, and “napsing” for a nap room is stored in advance in the availability information storage unit 16 together with call availability information.

  In this case, the availability information acquisition unit 13 acquires call availability information and status information stored in the availability information storage unit 16 in association with the place ID acquired from the location information storage unit 15 based on the medical worker ID. . Further, the display control unit 103 causes the display unit 105 of the mobile terminal 10 to display the call availability information and the situation information acquired by the availability information acquisition unit 13.

  FIG. 4 is a diagram illustrating a display example of call availability information and status information on the display unit 105 of the mobile terminal 10. For example, as shown in FIG. 4, the name of the medical worker selected by the medical worker as the person who wishes to talk and the situation information indicating the activity content expected to be performed in the place where the medical worker is present (in FIG. In the example, “conference is in progress”) and call availability information (“call NG” in the example of FIG. 4) are displayed on the screen of the display unit 105. As a result, it is possible not only to know whether the call is OK or NG, but also to know the situation where the desired party is a call OK or a call NG. Therefore, it is possible to make it easier to determine whether or not it is possible to make a call to a medical worker who wishes to call.

  In addition, the availability information storage unit 16 is associated with a plurality of positions in the facility, and includes position name information (such as a hospital room, a conference room, a reception room, an operating room, a medical office, a canteen, a rest room, and a nap room). (Name) may be stored in advance in the availability information storage unit 16 together with the availability information.

  In this case, the availability information acquisition unit 13 acquires call availability information and location name information stored in the availability information storage unit 16 in association with the location ID acquired from the location information storage unit 15 based on the medical worker ID. To do. In addition, the display control unit 103 causes the display unit 105 of the mobile terminal 10 to display the call availability information and the position name information acquired by the availability information acquisition unit 13.

  The availability information storage unit 16 may store in advance call availability information, status information, and location name information in association with a plurality of locations in the facility. In this case, the availability information acquisition unit 13 is associated with the location acquired from the location information storage unit 15 based on the medical worker ID, and is stored in the availability information storage unit 16 as to whether or not the call is possible, status information, and location name information. To get. Further, the display control unit 103 causes the display unit 105 of the mobile terminal 10 to display the call availability information, the situation information, and the position name information acquired by the availability information acquisition unit 13.

  FIG. 5 is a diagram illustrating a display example of call availability information, status information, and position name information on the display unit 105 of the mobile terminal 10. For example, as shown in FIG. 5, the name of the medical worker selected by the medical worker as a call request partner, the place where the medical worker is (“conference room” in the example of FIG. 5), and the place The display unit 105 causes the display unit 105 to display status information (“in-conference” in the example of FIG. 5) and call availability information (“call NG” in the example of FIG. 4) representing the activity content expected to be present. As a result, it is possible not only to know whether the call is OK or NG, but also to know the call OK or call NG because the call destination is in what place and in what situation. Therefore, it is possible to make it easier to determine whether or not it is possible to make a call to a medical worker who wishes to call.

  Moreover, although the said embodiment demonstrated the example which detects the position of a medical worker using the tag reader 6 and the wireless IC tag 20, this invention is not limited to this. For example, a wireless transmitter that transmits location information (location ID) is provided at each location, and the location ID is received by the mobile terminal 10 owned by the medical worker and stored in the mobile terminal 10. At the same time, the location of the medical worker may be detected by transmitting the location ID from the portable terminal 10 to the nurse call parent device 1. Other methods can be applied as long as the position of the medical staff can be detected.

  Moreover, although the said embodiment demonstrated the structure with which the nurse call main | base station 1 is equipped with the structure of each functional block 11-16 shown in FIG. 2, this invention is not limited to this. For example, a center device different from the nurse call parent device 1 may include the configurations of the functional blocks 11 to 16. Or you may make it the control machine 2 or the hand dinosaur call main apparatus 7 be provided with the structure of each function block 11-16.

  In the above embodiment, the nurse call system is described as an example of the in-facility call system to which the call availability estimation system is applied. However, the present invention can be applied to systems other than the nurse call system.

  In addition, each of the above-described embodiments is merely an example of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner. In other words, the present invention can be implemented in various forms without departing from the spirit or main features thereof.

DESCRIPTION OF SYMBOLS 1 Nurse call main | base station 6 Tag reader 10 Portable terminal 11 Location information acquisition part 12 Confirmation request reception part 13 Availability information acquisition part 14 Availability information transmission part 15 Position information storage part 16 Availability information storage part 20 Wireless IC tag 101 Confirmation request transmission part 102 Availability information receiving unit 103 Display control unit

Claims (4)

Applied to an in-facility call system that allows calls to be made between mobile terminals held by medical personnel in the facility, and estimates whether it is possible to make calls to the other medical worker A call availability estimation system that
Position detecting means for detecting the position of the medical worker in the facility;
A position information storage unit that stores the position information indicating the position of the medical worker detected by the position detection unit in association with the identification information of the medical worker as needed;
In association with a plurality of positions in the facility, whether or not the call can be performed when there is the medical worker at the position, the availability information storage unit that stores in advance whether the call is possible or not,
When an operation for selecting a call partner is performed on the mobile terminal possessed by the medical worker, the position where the call partner is located is acquired by referring to the position information storage unit, and the acquired position is set to the acquired position. Availability information acquisition means for acquiring call availability information stored in the availability information storage unit in association with each other;
A call availability estimation system comprising: display control means for displaying the call availability information acquired by the availability information acquisition means on a display unit of the portable terminal. The availability information storage unit is associated with a plurality of locations in the facility and indicates what activities the healthcare worker may perform when the healthcare worker is at the location. Store the status information together with the above call availability information,
The availability information acquisition means acquires the call availability information and the status information stored in the availability information storage unit in association with the acquired location,
2. The call availability estimation system according to claim 1, wherein the display control means displays the call availability information and the status information acquired by the availability information acquisition means on a display unit of the mobile terminal. The availability information storage unit stores in advance location name information representing the name of the location, together with the call availability information, in association with a plurality of locations in the facility,
The availability information acquisition means acquires the call availability information and the location name information stored in the availability information storage unit in association with the acquired location,
2. The call availability estimation system according to claim 1, wherein the display control means displays the call availability information and the position name information acquired by the availability information acquisition means on a display unit of the mobile terminal. The availability information storage unit stores in advance location name information indicating the name of the location in association with a plurality of locations in the facility together with the call availability information and the situation information,
The availability information acquisition means acquires the call availability information, the status information, and the location name information stored in the availability information storage unit in association with the acquired location,
3. The call according to claim 2, wherein the display control unit displays the call availability information, the status information, and the position name information acquired by the availability information acquisition unit on a display unit of the mobile terminal. Availability estimation system.

Images