JP2009135680A - Intercom system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform stable and sure radio communication between devices enabling radio communication, by enhancing reliability of data to be transmitted and received in performing various operations such as paging and telephone call between the devices. <P>SOLUTION: When pagings from bed slave units 1a, 1b, ...1n, 1a, 1b, ...1n, which perform radio communication with passage lights 2a, 2b, ... are reported by a nurse call master unit 3a connected to the passage lights by cable via a transmission line L, and a nurse who answers the pagings establishes telephone calls with a patient, paging signals indicating the pagings from the patients, data signals such as voice signals for establishing the telephone calls are simultaneously transmitted by radio from slave unit transmitting parts 102 of the bed slave units to the passage lights by imparting the same sequence number to the signals by at least two different frequencies or at least two different modulation systems. At the passage lights, the data signals received by the passage light receiving parts 200 are reassembled in an order of sequence numbers, and after discarding one overlapped data signal, transmitted to the nurse call master unit by cable via the transmission line. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an intercom system, and more particularly, to an intercom system capable of performing various operations such as calling and talking between devices capable of wireless communication.

  In recent years, with the enlargement of hospitals and welfare / nursing facilities, etc., users of these facilities need to use wireless LAN equipment, which is spreading widely, to perform various operations such as calling and calling. A nurse call system for operating a device to be operated is disclosed (for example, see Patent Document 1).

JP 2007-174451 A

  According to the nurse call system of Patent Document 1 described in the background art, it is possible to reduce the complexity of wiring and the cost of installation work, but when a data error or the like occurs when applying the wireless LAN communication technology, it is stable and reliable. For example, if a data error occurs at the time of a call from a patient that requires quick response by a nurse, there is a difficulty that may endanger the life of the patient. It was.

  Further, in order to solve the above-mentioned difficulties, for example, as in the recommunication method and mobile phone disclosed in Japanese Patent Laid-Open No. 9-271057, the network (communication network) is connected on the telephone side which is a communication device according to the communication location. A technique for changing a state and ensuring a communication state is disclosed. According to this technology, it is possible to check the communication state while switching the line and select the line with the optimum quality, but there is a possibility that it may not be able to cope with a sudden change in the line, resulting in a data error and the like. It was.

  The present invention has been made to solve these problems, and improves the reliability of data signals transmitted and received when performing various operations such as calling and calling between devices capable of wireless communication, and is stable and reliable. An object of the present invention is to provide an intercom system capable of performing wireless communication.

  In order to achieve the above-described object, an intercom system according to a first aspect of the present invention includes a bed slave installed on a bed in a hospital room for a patient to call a nurse to establish a call, and a corridor outside the hospital room. Corridor lights for wireless communication with bed slave units installed on the passage wall such as, etc., and calls from bed slave units are notified via the corridor lights via the transmission line and respond to the calls A nurse call parent machine is provided for a nurse who has made a call with a patient. Corresponding to the bed slave unit, the same sequence number is assigned to the data signal such as a call signal indicating a call by the patient and a voice signal for establishing a call at at least two different frequencies or at least two different modulation methods. There is provided a slave unit transmitting unit for wireless transmission simultaneously. The corridor lamp receives the data signal with the same sequence number that is wirelessly transmitted from the slave unit transmission unit of the bed slave unit, reassembles the received data signal in the order of the sequence number, and one of the duplicate data A corridor lamp receiver for discarding the signal is provided.

  In addition, the intercom system according to the second aspect of the present invention is installed on a bed wall set such as a corridor outside a hospital room and a bed slave unit installed on a hospital bed in a hospital room for a patient to call a nurse to establish a call. The corridor lamp for wireless communication with the bed slave unit and the call from the bed slave unit are notified by radio communication via the corridor lamp, and the nurse who responds to the call communicates with the patient. And a nurse call master unit for establishing the above. At the same time, the bed cordless handset is given the same sequence number at least two different frequencies or at least two different modulation schemes to the corridor lights, such as a call signal indicating a call by a patient and a voice signal for establishing a call. A slave unit transmitting unit for wireless transmission is provided. The corridor lamp receives the data signal with the same sequence number that is wirelessly transmitted from the slave unit transmission unit of the bed slave unit, reassembles the received data signal in the order of the sequence number, and one of the duplicate data When the signal is missing, the corridor lamp receiver for complementing with the other data signal assigned the same sequence number, and the data signal supplemented by the corridor lamp receiver at least two different frequencies or And a corridor lamp transmission unit for assigning the same sequence number to at least two different modulation schemes and simultaneously transmitting to the nurse call master unit. The nurse call master unit receives the data signal with the same sequence number transmitted wirelessly from the corridor lamp transmitter of the corridor lamp, reassembles the received data signal in the order of the sequence number, A master receiver for discarding the data signal is provided.

  The intercom system according to the third aspect of the present invention includes an entrance cordless device installed outside the dwelling unit for a visitor to call the resident to establish a call, and a call from the entrance cordless device installed inside the dwelling unit. Is provided through a wireless communication, and a resident who responds to the call is provided with a room master for establishing a call with the visitor. The entrance cordless handset is given the same sequence number with at least two different frequencies or at least two different modulation schemes for data signals such as a call signal indicating a call by a visitor and a voice signal for establishing a call. There is provided a slave unit transmitting unit for wireless transmission simultaneously. The room base unit receives the data signal with the same sequence number transmitted wirelessly from the slave unit transmission unit of the entrance unit, reassembles the received data signal in sequence number order, A master receiver for discarding the data signal is provided.

  According to the intercom system of the present invention, the call from the bed slave unit that performs wireless communication with the corridor lamp is notified by the nurse call master unit that is wired to the corridor lamp via a transmission line, When the nurse responding to the call establishes a call with the patient, the reliability of the data signal transmitted and received between the bed handset and the corridor lamp is improved, and stable and reliable wireless communication can be performed. it can.

  In addition, according to the intercom system of the present invention, the call from the bed slave unit that performs wireless communication with the corridor lamp is notified by the nurse call master unit that performs radio communication with the corridor lamp. When the nurse responding to the call establishes a call with the patient, the reliability of the data signal transmitted / received between the bed slave unit and the corridor lamp, between the corridor lamp and the nurse call master unit is improved, Stable and reliable wireless communication can be performed.

  Furthermore, according to the intercom system of the present invention, a call from an entrance slave unit is notified by a room master unit that performs wireless communication with the entrance slave unit, and a resident who responds to the call is called a visitor. In establishing a call between the two, the reliability of the data signal transmitted and received between the entrance slave unit and the living room master unit is improved, and stable and reliable wireless communication can be performed.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments to which an intercom system of the invention is applied will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a specific configuration of a nurse call system installed in a hospital or welfare / nursing care as an intercom system according to a first embodiment of the present invention. This nurse call system is installed in each hospital bed in a plurality of hospital rooms, for example, room 101, room 102,..., And a patient calls a nurse, for example, a nurse who is present in a nurse center. .., 1n, 1a, 1b,..., 1n,... And bed slaves (for each hospital room) installed on the wall surface of a corridor or the like outside the hospital room 1a, 1b,... 1n, 1a, 1b,... 1n, .., and corridor lights 2a, 2a,. Calls from bed slaves 1a, 1b, ... 1n, 1a, 1b, ... 1n, ... via corridor lights 2a, 2a, ... that are wired via L The nurse who notified and answered the call made a call with the patient A nurse call base unit 3a for is provided. In addition, bed child machine 1a, 1b, ... 1n, 1a, 1b, ... 1n, ... is not limited to the aspect installed in each bed as mentioned above, For example, a toilet It can also be installed in a predetermined place such as a bath.

  .., 1n, 1a, 1b,..., 1n,... Are assigned the same slave unit numbers, and the patient performs a predetermined calling operation. For example, a handset operating unit 100 constituted by a call grip button and a voice for inputting and receiving a voice (transmitted voice, received voice) for a patient to establish a call with a nurse, for example, a microphone and A handset communication unit 101 constituted by a speaker, a call signal indicating a call by a patient that the handset operation unit 100 has been operated, and a voice of a patient (speech voice) input to the handset communication unit 101 For simultaneously transmitting wireless signals to the corridor lamps 2a, 2a,... (In the patient's room) with the same sequence number assigned at least two different frequencies or at least two different modulation schemes. Child machine Unit 102 and the corridor lamps 2a, 2a,..., Which will be described later, receive data signals with the same sequence number transmitted wirelessly from the corridor lamp transmitter 203, and receive the received data signals in sequence number order. A slave unit receiving unit 103 for reassembling and discarding one of the duplicate data signals is provided. In addition, the subunit | mobile_unit operation part 100 is not limited to the aspect with which the above-mentioned bed subunit | mobile_units 1a, 1b, ... 1n, 1a, 1b, ... 1n, ... is equipped, for example It is also possible to provide a wired connection or a wireless connection independently of the slave unit. According to this aspect, the slave unit operation unit 100 temporarily fixed to the hospital bed performs wired communication or wireless communication with the bed slave units 1a, 1b, ... 1n, 1a, 1b, ... 1n, ... Thus, the handset operating unit 100 can be moved together with the bed.

  The corridor lamps 2a, 2a,... Are assigned the same corridor lamp numbers with the same configuration, and the bed slave units 1a, 1b,... 1n, 1a, 1b,.・ Receiving the data signal with the same sequence number wirelessly transmitted from the slave unit transmitting unit 102, reassembling the received data signal in order of the sequence number, and discarding one of the duplicate data signals A corridor lamp receiving unit (hereinafter referred to as a slave unit side corridor lamp receiving unit) 200 and a data signal received by the slave unit side corridor lamp receiver 200 are transmitted to the nurse call master unit 3a via the transmission line L. Wired transmission is performed via a transmission line L from a corridor lamp transmission unit (hereinafter referred to as a “base station side corridor lamp transmission unit”) 201 for wired transmission and a parent unit transmission unit 304 described later of the nurse call parent unit 3a. Response by the coming nurse Corridor light receiving unit for receiving data signals such as a response signal indicating the end of an established call, an end signal indicating the end of an ongoing call, and a voice signal indicating a nurse's voice (transmission voice) 202 and the base station side corridor lamp receiving unit 202 are given the same sequence number with at least two different frequencies or at least two different modulation schemes (self-hospital room). ) Bed cordless handset 1a, 1b,... 1n, 1a, 1b,... 1n,. 203, a call display indicating a call by the patient in the patient's room, a busy display indicating that the call is being established, respectively, by displaying a predetermined text message, picture data, etc. PDP, organic EL Isupurei, a corridor lamp display unit 204 constituted by LED or the like, a corridor lamp control unit 205 for controlling each component of the corridor lamps are provided.

  In the nurse call master unit 3a, a nurse who has confirmed a call from a patient performs a predetermined response operation to establish a call and a predetermined end operation is performed to end the established call. A main unit operation unit 300 composed of call buttons, a call display indicating a call from a patient, a busy display indicating that a call is being established, respectively, display of predetermined character messages, picture data, etc., flashing light or For example, a parent device display unit 301 composed of an LCD, a PDP, an organic EL display, an LED, and the like for performing lighting, and a voice (sending voice, receiving voice) for a nurse to establish a call with a patient For example, a master phone communication unit 302 composed of a microphone and a speaker and a parent machine side corridor lamp transmitter 201 of the corridor lamps 2a, 2a,... Are wired via a transmission line L. Sent A base unit receiving unit 303 for receiving the incoming data signal, a response signal indicating a response by the nurse, an end signal indicating the end of the established call, and a voice input by the nurse input to the base unit call unit 302 A master signal transmitting unit 304 for transmitting a data signal such as a voice signal indicating (speech voice) via the transmission line L to the corridor lamps 2a, 2a,. A master unit control unit 305 for controlling each component is provided. In addition, the main | base station call part 302 can output not only the above-mentioned call function but the ringing tone, voice message, etc. which show the call from a patient, for example.

  In the nurse call system that is the intercom system according to the first embodiment of the present invention configured as described above, a specific operation will be described below.

  .., 1n, 1a, 1b,..., 1n,..., For example, a bed installed on a sickbed in the 101st room. When the patient performs a predetermined calling operation in the child device operation unit 100 of the child device 1a, the child device transmission unit 102 that has detected this operation calls the patient to which the child device number of the own child device is assigned. The signal is given the same sequence number in at least two different frequencies, for example 2.4 GHz and 400 MHz, or at least two different modulation schemes, for example AM modulation and FM modulation, and the walls of the passage such as a corridor outside the room 101 Can be simultaneously wirelessly transmitted to the handset side corridor lamp receiving unit 200 of the corridor lamp 2a installed in the main body.

  In the corridor lamp 2a installed on the passage wall surface of the corridor etc. outside the room 101, the handset side corridor lamp receiving unit 200 receives the call signal wirelessly transmitted from the handset transmitter 102 of the bed handset 1a, By reassembling the received call signals in the order of the sequence numbers and discarding one of the duplicate call signals, it becomes possible to receive the call signal stably and reliably. The corridor lamp control unit 205 can be called by a patient in a hospital bed where the bed slave unit 1a is installed based on the slave unit number given to the call signal received by the slave unit side corridor lamp receiving unit 200. It is possible to detect that there is a call and display a call to that effect on the corridor lamp display unit 204. Further, the base unit side corridor lamp transmitting unit 201 assigns the corridor lamp number of the own corridor lamp to the call signal detected by the base unit control unit 205, and the base unit of the transmission line L and the nurse call base unit 3a. Wired transmission can be performed to the parent device control unit 305 via the reception unit 303 (stable and reliable).

  The parent device control unit 305 of the nurse call parent device 3a can be called by a patient in a hospital bed where the bed child device 1a of the 101st room is installed based on the child device number and the corridor lamp number given to the received call signal. By detecting that there is a call and outputting a ringing sound or voice message to that effect from the base unit call unit 302 and performing a similar call display on the base unit display unit 301, Call notification can be made to the nurse inside.

  Next, when a nurse who is present in the nurse center who has confirmed the call notification performs a predetermined response operation at the parent device operation unit 300 of the nurse call parent device 3a, the parent device control that detects this operation is performed. Under the control of the unit 305, a call line is formed between the transmission line L via the parent unit call unit 302, the parent unit reception unit 303, and the parent unit transmission unit 304 used by the nurse, and the nurse. A response signal indicating a response by is generated. This response signal is sent from the base unit control unit 305 to the base unit transmission unit 304, the transmission line L, and the base unit side corridor lamp receiving unit 202 of the corridor lamp 2a installed on the passage wall surface such as the corridor outside the 101 room. Wired transmission to the corridor lamp control unit 205 (stable and reliable).

  In the corridor lamp 2a installed on the passage wall surface such as a corridor outside the 101st room, the corridor lamp control unit 205 that has received the response signal from the nurse call master unit 3a controls the corridor lamp control from the master unit side corridor lamp receiving unit 202. Unit, a handset side corridor lamp transmission unit 203, a call line to the handset unit 101 used by the patient via the handset unit 103 of the bed handset 1a that is the calling source, and a handset used by the patient A communication line from the communication unit 101 to the slave unit transmission unit 102, the slave unit side corridor lamp reception unit 200, and a call line from the corridor unit corridor lamp control unit to the master unit side corridor lamp transmission unit 201 is formed. The corridor lamp display unit 204 can perform a busy display indicating that a call is being established between a patient in the hospital bed 1a and a nurse in the nurse's center.

  Here, when the voice (transmission voice) of the nurse who is present in the nurse center is input to the base unit call unit 302 of the nurse call base unit 3a, the base unit transmission unit 304 displays the voice of the nurse. The voice signal indicating (speech voice) is transmitted via the transmission line L, the corridor side corridor lamp receiving unit 202 of the corridor lamp 2a installed on the corridor wall surface such as the corridor outside the room 101, and the corridor lamp control unit 205. Wired transmission can be performed (stable and reliable) to the handset side corridor lamp transmission unit 203. This cordless handset side corridor lamp transmission unit 203 uses the same sequence of the received audio signal in at least two different frequencies, for example, 2.4 GHz and 400 MHz, or at least two different modulation schemes, for example, AM modulation and FM demodulation. A number can be assigned, and wireless transmission can be simultaneously performed to the child device receiving unit 103 of the bed child device 1a that is the calling source.

  The child device receiving unit 103 of the bed child device 1a, which is the calling source, receives the audio signal wirelessly transmitted from the child device side corridor lamp transmitting unit 203 of the corridor lamp 2a installed on the wall surface of the corridor or the like outside the room 101. Receiving, reassembling the received audio signals in sequence number order, and discarding one of the duplicate audio signals, the audio signal indicating the nurse's audio (transmission audio) is stably and reliably transmitted to the slave unit call unit 101. Therefore, the nurse's voice (transmitted voice) is output from the slave unit call unit 101 as a highly reliable received voice.

  On the other hand, when the voice (transmission voice) of the patient who is the call source is input to the slave unit call unit 101 of the bed slave unit 1a, the slave unit transmission unit 102 transmits a voice signal indicating the patient's voice (send speech). At least two different frequencies, for example 2.4 GHz and 400 MHz, or at least two different modulation schemes, for example AM modulation and FM demodulation, with the same sequence number on the wall surface of the corridor etc. outside the room 101 Wireless transmission can be simultaneously performed to the handset side corridor lamp receiving unit 200 of the installed corridor lamp 2a.

  In the corridor lamp 2a installed on the passage wall surface such as the corridor etc. outside the room 101, the handset side corridor lamp receiving unit 200 receives an audio signal wirelessly transmitted from the handset transmitter 102 of the bed handset 1a, After reassembling the received audio signals in sequence number order and discarding one of the duplicate audio signals, the corridor lamp control unit 205, the master unit side corridor lamp transmitter 201, the transmission line L, and the master unit of the nurse call master unit 3a It is possible to wire-transmit (stable and surely) to the base unit call unit 302 via the reception unit 303. Therefore, the patient's voice (transmission voice) is transmitted from the base unit call unit 302 as a highly reliable received sound. Will be output.

  In addition, during the establishment of the call as described above, when a nurse who is present in the nurse center performs a predetermined call end operation on the parent device operation unit 300 of the nurse call parent device 3a, this operation is detected. The above-described call line is blocked by the control of the base unit control unit 305, and the call can be terminated.

  As is apparent from the above description, in the nurse call system that is the intercom system according to the first embodiment of the present invention, the bed slave unit 1a that performs wireless communication with the hallway lights 2a, 2a,. 1b,... 1n, 1a, 1b,... 1n,... Are notified by the nurse call master unit 3a wired to the corridor lamp via the transmission line L. When the nurse responding to the call establishes a call with the patient, the bed slaves 1a, 1b,... 1n, 1a, 1b,. As a data signal transmitted / received between the lamps 2a, 2a,..., The reliability of the calling signal and the voice signal is improved, and stable and reliable wireless communication can be performed.

  In the nurse call system, which is an intercom system according to the first embodiment of the present invention, the bed slave units 1a, 1b, ... 1n, 1a, 1b, ... 1n, ... and the corridor lamp 2a, 2a, 1b,... 1n,... 1n,..., 1n,..., 1n,. A call signal indicating a call by the patient by detecting the operation of the slave unit operation unit 100, a voice signal for establishing a call input by the patient to the slave unit call unit 101, and a nurse call master unit 3a by the nurse Although the audio signal for establishing the call input to the base unit call unit 302 is applied, the present invention is not limited to this mode. For example, the cordless handset 1a, 1b,... 1n, 1a, 1b,... 1n,. The signal processing in the first embodiment can also be performed only on the calling signal and the voice signal which are data signals transmitted wirelessly to 200.

  Moreover, in the nurse call system which is an intercom system according to the first embodiment of the present invention, the bed slave units 1a, 1b, ... 1n, 1a, 1b, ... 1n, ... and the corridor lamp 2a, 2a, 1b,... 1n, 1a, 1b,... 1n are used as data signals transmitted wirelessly from the bed slave unit when performing stable and reliable wireless communication between the bed slave units 1a, 1b,. ,...,... Are applied to the call signal indicating the call by the patient by detecting the operation of the slave unit operation unit 100 and the voice signal for establishing the call input to the slave unit call unit 101 by the patient. The data signal is not limited to this. For example, it is also possible to provide a camera that is provided in the bed slave unit 1a, 1b,... 1n, 1a, 1b,. According to the aspect, the video signal picked up by the camera can be wirelessly communicated to the corridor lamps 2a, 2a,.

  Next, as an intercom system according to the second embodiment of the present invention, as in the first embodiment, a nurse call system installed in a hospital, welfare / care facility or the like is shown in FIG. This will be described with reference to the block diagram of FIG. In the second embodiment, components having the same functions and operations as those in the first embodiment are given the same names and symbols, and the description thereof is omitted.

  The nurse call system shown in FIG. 2 is installed in each bed in a plurality of hospital rooms, for example, room 101, room 102,..., And a patient is assigned to a nurse, for example, a nurse in the nurse center. .., 1 n, 1 a, 1 b,..., 1 n,..., And a bed child for each hospital room installed on a passage wall surface such as a corridor outside the hospital room. Hallway lights 2b, 2b,... For performing wireless communication with the machines 1a, 1b,... 1n, 1a, 1b,. Perform wireless communication with 2b, 2b,... And call from bed slave units 1a, 1b,... 1n, 1a, 1b,. The nurse who answered the call made a call with the patient. A nurse call base unit 3b for causing is provided.

  The corridor lamps 2b, 2b,... Are assigned the same corridor lamp numbers with the same configuration. The corridor lamp display unit 204 and the bed slaves 1a, 1b,. 1b,..., 1n,... Receive the data signal with the same sequence number wirelessly transmitted from the slave unit transmitting unit 102, reassemble the received data signals in order of the sequence number, and duplicate If one of the data signals is missing, it is complemented by the slave unit side corridor lamp receiving unit 206 and the slave unit side corridor lamp receiver 206 for supplementing with the other data signal assigned the same sequence number. Parent device side corridor for simultaneously transmitting radio signals to the nurse call parent device 3b by assigning the same sequence number to at least two different frequencies or at least two different modulation schemes A response signal indicating a response by the nurse wirelessly transmitted from the light transmission unit 207 and a parent device transmission unit 307 (to be described later) of the nurse call parent device 3b, an end signal indicating the end of the established call, and the nurse's voice To reassemble a data signal such as an audio signal indicating (speech voice) in order of sequence number, and to complement the other data signal with the same sequence number when one of the duplicate data signals is missing Main unit side corridor lamp reception unit 208 and data signals such as response signals, call end signals, and audio signals supplemented by main unit side corridor lamp reception unit 208 at least two different frequencies or at least two different modulation schemes The same handset side corridor for wirelessly transmitting to the bed slave units 1a, 1b,... 1n, 1a, 1b,. A lighting transmission unit 209, a corridor lamp control unit 210 for controlling each component of the corridor lamps are provided.

  The nurse call master unit 3b is wirelessly transmitted from the master unit operation unit 300, the master unit display unit 301, the master unit call unit 302, and the base unit side corridor lamp transmitter 208 of the corridor lamps 2b, 2b,. The master unit receiving unit 306 for receiving the received data signal with the same sequence number, reassembling the received data signal in the order of the sequence number, and discarding the duplicated data signal; At least two different frequencies are used for data signals such as a response signal indicating a response, an end signal indicating the end of an established call, and a voice signal indicating a voice (transmitted voice) by a nurse input to the base unit call unit 302. Alternatively, a master transmitter 307 for simultaneously transmitting wirelessly to the corridor lamps 2b, 2b,... By assigning the same sequence number with at least two different modulation methods, and the nurse call master A base unit controller 308 for controlling each component is provided.

  In the nurse call system that is the intercom system according to the second embodiment of the present invention configured as described above, a specific operation will be described below.

  .., 1n, 1a, 1b,..., 1n,..., For example, a bed installed on a sickbed in the 101st room. When the patient performs a predetermined calling operation in the child device operation unit 100 of the child device 1a, the child device transmission unit 102 that has detected this operation calls the patient to which the child device number of the own child device is assigned. The signal is given the same sequence number in at least two different frequencies, for example 2.4 GHz and 400 MHz, or at least two different modulation schemes, for example AM modulation and FM modulation, and the walls of the passage such as a corridor outside the room 101 Can be simultaneously wirelessly transmitted to the handset side corridor lamp receiving unit 206 of the corridor lamp 2b installed in the main body.

  In the corridor lamp 2b installed on the passage wall surface of the corridor etc. outside the room 101, the handset side corridor lamp receiving unit 206 receives the call signal wirelessly transmitted from the handset transmitter 102 of the bed handset 1a, Reassembling the received call signals in the order of sequence numbers, and if one of the duplicate call signals is missing, it is complemented with the other call signal to which the same sequence number is assigned. Can be received. In addition, the corridor lamp control unit 210 is called by the patient in which the bed slave unit 1a is installed based on the slave unit number given to the call signal supplemented by the slave unit side corridor lamp receiving unit 206. Can be detected and a call display to that effect can be made on the corridor lamp display unit 204. Further, the main unit side corridor lamp transmission unit 207 assigns the corridor lamp number of the own corridor lamp to the call signal detected by the corridor lamp control unit 210, and at least two different frequencies, for example, 2.4 GHz and The same sequence number can be assigned at 400 MHz or at least two different modulation schemes, for example, AM modulation and FM modulation, and wireless transmission can be simultaneously performed to the parent device receiving unit 306 of the nurse call parent device 3b.

  The parent device receiving unit 306 of the nurse call parent device 3b receives the call signal transmitted wirelessly from the parent device side corridor lamp transmitting unit 207 of the corridor lamp 2b installed on the passage wall surface such as the corridor outside the 101st room, The received call signals can be reassembled in the order of sequence numbers, and one of the duplicate call signals can be discarded and sent to the base unit control unit 308. In addition, the master unit control unit 308 allows the patient in the bed where the bed slave unit 1a in the 101st room is installed to be called by the patient based on the slave unit number and the corridor lamp number given to the call signal received stably and reliably. By detecting that there is a call and outputting a ringing sound or voice message to that effect from the base unit call unit 302 and performing a similar call display on the base unit display unit 301, Call notification can be made to the nurse inside.

  Next, when a nurse who is present in the nurse center who has confirmed the call notification performs a predetermined response operation at the parent device operation unit 300 of the nurse call parent device 3b, the parent device control that detects this operation is performed. Under the control of the unit 308, the corridor light 2b installed on the wall surface of the corridor or the like outside the room 101 via the master unit call unit 302, the master unit receiver 306, and the master unit transmitter 307 used by the nurse. A call line is formed between the main unit side corridor lamp receiving unit 208 and the main unit side corridor lamp transmitting unit 207, and a response signal indicating a response by the nurse is generated. Here, the base unit transmission unit 307 transmits the response signal generated by the base unit control unit 308 to at least two different frequencies, for example, 2.4 GHz and 400 MHz, or at least two different modulation schemes, for example, AM modulation and The same sequence number is assigned by FM modulation, and wireless transmission can be simultaneously performed to the base unit side corridor lamp receiving unit 208 of the corridor lamp 2b installed on the passage wall surface such as the corridor outside the 101st room.

  In the corridor lamp 2b installed on the passage wall surface such as a corridor outside the 101st room, the master unit side corridor lamp receiving unit 208 receives the response signal transmitted wirelessly from the master unit transmitting unit 307 of the nurse call master unit 3b. Stable and reliable response by reassembling the received response signals in the order of sequence numbers and complementing with the other response signal with the same sequence number if one of the duplicate response signals is missing The signal can be received. Further, the corridor lamp control unit 210 detects that there is a response from the nurse based on the response signal complemented by the master unit side corridor lamp reception unit 208, and the master unit corridor lamp reception unit 208 detects the response. Call line to the slave unit call unit 101 used by the patient via the corridor lamp control unit, the slave unit side corridor lamp transmission unit 209, the slave unit receiver 103 of the bed slave unit 1a that is the caller, and the patient use A call line from the slave unit call unit 101 of the bed slave unit 1a to the slave unit transmitter unit 102, the slave unit side corridor lamp receiver 206, and the master unit corridor lamp transmitter unit 207 via the corridor lamp control unit. The corridor lamp display unit 204 displays a busy display indicating that a call is being established between the patient in the bed where the bed slave unit 1a is installed and the nurse in the nurse center. Can be done.

  Here, when the voice (transmission voice) of the nurse who is present in the nurse center is input to the base unit call unit 302 of the nurse call base unit 3b, the base unit transmission unit 307 displays the voice of the nurse. A voice signal indicating (speech voice) is assigned at least two different frequencies, for example, 2.4 GHz and 400 MHz, or at least two different modulation schemes, for example, AM modulation and FM modulation, and given the same sequence number, 101 Wireless transmission can be simultaneously performed to the base unit side corridor lamp receiving unit 208 of the corridor lamp 2b installed on the wall of the passage such as a corridor outside the room.

  In the corridor lamp 2b installed on the passage wall surface of the corridor etc. outside the 101st room, the master unit side corridor lamp receiving unit 208 receives the audio signal wirelessly transmitted from the master unit transmitting unit 307 of the nurse call master unit 3b. Stable and reliable audio by reassembling the received audio signals in sequence number order and complementing with the other audio signal with the same sequence number if one of the duplicate audio signals is missing The signal can be received, and thereafter, can be sent to the handset side corridor lamp transmitter 209 via the corridor lamp controller 210. The handset side corridor lamp transmission unit 209 converts the audio signal supplemented by the base unit corridor lamp reception unit 208 into at least two different frequencies, for example, 2.4 GHz and 400 MHz, or at least two different modulation schemes. For example, the same sequence number can be assigned in AM modulation and FM modulation, and wireless transmission can be simultaneously performed to the child device receiving unit 103 of the bed child device 1a that is a call source.

  The child device receiving unit 103 of the bed child device 1a, which is the calling source, receives the audio signal wirelessly transmitted from the child device side corridor lamp transmitting unit 209 of the corridor lamp 2b installed on the wall of the corridor or the like outside the room 101. By receiving and reassembling the received audio signals in the order of sequence numbers and discarding one of the overlapping audio signals, the audio signal indicating the nurse's audio (transmitted audio) can be stably and reliably transmitted to the slave unit communication unit 101. Therefore, the nurse's voice (transmission voice) is output from the slave unit call unit 101 as a highly reliable received voice.

  On the other hand, when the voice (transmission voice) of the patient who is the call source is input to the slave unit call unit 101 of the bed slave unit 1a, the slave unit transmission unit 102 transmits a voice signal indicating the patient's voice (send speech). At least two different frequencies, for example 2.4 GHz and 400 MHz, or at least two different modulation schemes, for example AM modulation and FM demodulation, with the same sequence number on the wall surface of the corridor etc. outside the room 101 Wireless transmission can be simultaneously performed to the handset side corridor lamp receiving unit 206 of the installed corridor lamp 2b.

  In the corridor lamp 2b installed on the passage wall surface such as the corridor outside the room 101, the slave unit side corridor lamp receiving unit 206 receives the audio signal wirelessly transmitted from the slave unit transmitting unit 102 of the bed slave unit 1a, Reassemble the received audio signals in sequence number order, and if one of the duplicate audio signals is missing, it is complemented with the other audio signal with the same sequence number. Can then be sent to the base unit side corridor lamp transmission unit 207 via the corridor lamp control unit 210. Further, the main unit side corridor lamp transmission unit 207 converts the audio signal supplemented by the sub unit side corridor lamp reception unit 206 into at least two different frequencies, for example, 2.4 GHz and 400 MHz, or at least two different modulation schemes. For example, the same sequence number can be assigned in AM modulation and FM modulation, and wireless transmission can be simultaneously performed to the parent device receiving unit 306 of the nurse call parent device 3b.

  The parent device receiving unit 306 of the nurse call parent device 3b receives the audio signal wirelessly transmitted from the parent device side corridor lamp transmitting unit 207 of the corridor lamp 2b installed on the passage wall surface such as the corridor outside the 101 room, The received audio signals are reassembled in the order of sequence numbers, and one of the duplicate audio signals is discarded, and then can be stably and reliably transmitted to the base unit communication unit 302. Therefore, the patient's audio (transmission audio) can be transmitted. It is output from the base phone call unit 302 as a highly reliable received sound.

  In addition, during establishment of the call as described above, when a nurse who is present in the nurse center performs a predetermined call end operation on the parent device operation unit 300 of the nurse call parent device 3b, this operation is detected. The above-described call line is blocked by the control of the base unit control unit 308, and the call can be terminated.

  As is apparent from the above description, in the nurse call system that is the intercom system according to the second embodiment of the present invention, the bed slave unit 1a that performs wireless communication with the hallway lights 2b, 2b,. 1b,... 1n, 1a, 1b,... 1n,... Are notified by the nurse call master unit 3b that performs wireless communication with the corridor lamp, and responds to the call. When the nurse who made the call establishes a call with the patient, the bed slaves 1a, 1b,... 1n, 1a, 1b,... 1n,. ,.., The reliability of the call signal, the response signal, and the voice signal as the data signals transmitted and received between the corridor lights 2b, 2b,. Reliable wireless communication It is possible.

  In the nurse call system, which is an intercom system according to the second embodiment of the present invention, the bed slave units 1a, 1b, ... 1n, 1a, 1b, ... 1n, ... and the corridor lamp 2b, 2b,.., And corridor lamps 2b, 2b,... And nurse call master unit 3b. 1b,... 1n, 1a, 1b,... 1n,... Detecting the operation of the slave unit operation unit 100, a call signal indicating a call by the patient, input to the slave unit call unit 101 by the patient A voice signal for establishing a call, a response signal (or a call end signal) indicating a response (or a call end) by a nurse by detecting the operation of the base unit operation unit 300 of the nurse call base unit 3b, and a resident Nurse call parent Applying the audio signal for establishing the input call base unit calling unit 302 of 3b, but is not limited to this embodiment. For example, the cordless handset 1a, 1b,... 1n, 1a, 1b,... 1n,. A call signal, a voice signal, which are data signals wirelessly transmitted to 206, and a base station side corridor lamp transmission unit 207 of the corridor lamps 2b, 2b,. The signal processing in the second embodiment can be performed only on the call signal and voice signal which are data signals to be processed.

  In the nurse call system, which is an intercom system according to the second embodiment of the present invention, the bed slave units 1a, 1b, ... 1n, 1a, 1b, ... 1n, ... and the corridor lamp 2a, As in the first embodiment, the bed slave units 1a, 1b,... Are used as data signals that are wirelessly transmitted from the bed slave unit when performing stable and reliable wireless communication between 2a,. 1n, 1a, 1b,... 1n,..., 1 n,... For detecting a call signal indicating a call by the patient and a call input by the patient to the slave unit call unit 101. However, the present invention is not limited to these data signals. For example, it is also possible to provide a camera that is provided in the bed slave unit 1a, 1b,... 1n, 1a, 1b,. According to the aspect, the video signal picked up by the camera can be wirelessly communicated to the corridor lamps 2a, 2a,.

  Next, as an intercom system according to a third embodiment of the present invention, an intercom system installed in an apartment house such as a detached house or a condominium will be described with reference to the block diagram of FIG. 3 showing a specific configuration. .

  The intercom system shown in FIG. 3 is installed outside a dwelling unit in a detached house, for example, at a dwelling unit entrance, where a visitor calls a resident to establish a call, and inside the dwelling unit. A caller 4 is notified by wireless communication, and a resident room 5 is provided for a resident who has responded to the call to establish a call with a visitor.

  The entrance handset 4 has, for example, a handset operation unit 400 configured by a call button for a visitor to perform a predetermined call operation, and a voice for the visitor to establish a call with a resident. For example, a CCD, CMOS, or the like for capturing an image of the vicinity of a visitor or a dwelling unit entrance, for example, a handset communication unit 401 configured with a microphone and a speaker. The image pickup unit 402 configured with various image pickup devices of the above, the call signal indicating the call by the visitor by detecting the operation of the slave unit operation unit 400, and the call input to the slave unit call unit 401 by the visitor The same sequence number is assigned to at least two different frequencies or at least two different modulation schemes for data signals such as an audio signal for establishment and a video signal indicating the video imaged by the video imaging unit 402. A slave unit transmitting unit 403 for wirelessly transmitting to the living room master unit 5 at the same time and a data signal assigned with the same sequence number wirelessly transmitted from a later described parent unit transmitting unit 503 of the living room base unit 5 are received, A slave unit receiving unit 404 is provided for reassembling the received data signals in the order of sequence numbers and discarding one of the duplicate data signals.

  For example, a resident who has confirmed a call from a visitor performs a predetermined response operation to establish a call and performs a predetermined end operation to end the established call. Consists of, for example, a microphone and a speaker that inputs / outputs a voice (sending voice, incoming voice) for a visitor to establish a call with a resident, and a base unit operation unit 500 configured by a call button The video image picked up by the main phone call unit 501 and the video image pickup unit 402 of the entrance cordless handset 4 is displayed and a call display indicating a call from a visitor or a busy display indicating that a call is being established. Display unit 502 configured to display, for example, LCD, PDP, organic EL display, LED, etc. for displaying predetermined character messages, picture data, and the like by blinking or lighting of light, and a phone call by the resident Part 50 A parent for transmitting a data signal, which is an audio signal for establishing a call, input to, to the entrance cordless handset 4 at the same time by assigning the same sequence number to at least two different frequencies or at least two different modulation methods. The data signal with the same sequence number transmitted wirelessly from the machine transmission unit 503 and the slave unit transmission unit 403 of the front door slave unit 4 is received, the received data signals are reassembled in the order of the sequence number, and duplicated A base unit receiving unit 504 for discarding one data signal and a control unit 505 for controlling each component of the room base unit are provided.

  In the intercom system according to the third embodiment of the present invention configured as described above, a specific operation will be described below.

  When a visitor performs a predetermined call operation in the slave unit operation unit 400 of the entrance slave unit 4 shown in FIG. 3, the slave unit transmission unit 403 that detects this operation, for example, visitor that is signal-processed in time series And a video signal indicating a video imaged by the video imaging unit 402 at least two different frequencies, for example, 2.4 GHz and 400 MHz, or at least two different modulation methods, for example, AM modulation and The same sequence number can be assigned by FM modulation, and wireless transmission can be simultaneously performed to the base unit receiving unit 504 of the room base unit 5.

  The base unit receiving unit 504 of the living room base unit 5 receives the call signal and the video signal that are wirelessly transmitted from the slave unit transmission unit 403 of the front door unit 4, and receives the received call signal and the video signal in the order of the sequence numbers. By reassembling and discarding one of the duplicate call signals and one video signal, a call signal indicating a call by a visitor can be sent to the control unit 505 stably and reliably, and the video of the entrance slave unit 4 A video signal indicating the video imaged by the imaging unit 402 can be stably and reliably sent to the display unit 502. Here, when receiving the call signal, the control unit 505 detects that there is a call by a visitor, and outputs a ringing sound or a voice message to that effect from the base unit call unit 501 and calls the same. Display is performed on the display unit 502, and a call is notified to the resident. Furthermore, a video image of the vicinity of the visitor and the dwelling unit entrance captured by the video image capturing unit 402 of the entrance cordless handset 4 is highly reliable. The video can be displayed on the display unit 502 with the video.

  Next, when the resident who has confirmed the call notification described above performs a predetermined response operation in the master unit operation unit 500 of the living room master unit 5, the resident uses the control unit 505 that detects this operation. A communication line from the parent device call unit 501 to the child device call unit 401 used by the visitor via the parent device transmission unit 503 and the child device reception unit 404 of the front door child device 4, and the child device call used by the visitor Call lines from unit 401 to slave unit transmitter 403 and master unit receiver 504 (of room master unit 2) to master unit call unit 501 used by a resident are formed.

  Here, when the resident's voice (speech voice) is input to the base unit call unit 501 of the room base unit 5, the base unit transmission unit 503 outputs a voice signal indicating the resident's voice (send voice). At least two different frequencies, for example, 2.4 GHz and 400 MHz, or at least two different modulation schemes, for example, AM modulation and FM modulation, are assigned the same sequence number to the slave unit receiver 404 of the entrance unit 4 at the same time. Wireless transmission is possible.

  The handset receiving unit 404 of the entrance handset 4 receives the voice signal wirelessly transmitted from the base unit sending unit 503 of the living room base unit 5 and reassembles the received voice signal in the order of the sequence number. By discarding the audio signal, an audio signal indicating the occupant's voice (speech voice) can be stably and reliably sent to the handset unit 401. Therefore, the resident's voice (speech voice) is transmitted. It is output from the handset communication unit 401 as a highly reliable received sound.

  On the other hand, when the visitor's voice (speech voice) is input to the slave unit call unit 401 of the entrance cordless handset 4, the slave unit transmission unit 403 displays a voice signal (and voice signal) indicating the visitor's voice (send voice). The same sequence number is used for at least two different frequencies, such as 2.4 GHz and 400 MHz, or at least two different modulation schemes such as AM modulation and FM modulation. Can be simultaneously transmitted to the base unit receiving unit 504 of the living room base unit 5 by radio.

  The base unit receiving unit 504 of the living room base unit 5 receives the audio signal (and video signal) wirelessly transmitted from the sub unit transmission unit 403 of the front door unit 4 and receives the received audio signal (and video signal). By reassembling in order of sequence numbers and discarding one of the duplicate audio signals (and video signals), an audio signal indicating the visitor's audio (transmission audio) is stably and reliably sent to the base unit communication unit 501 ( , And a video signal indicating the video imaged by the video imaging unit 402 of the entrance cordless handset 4 can be stably and reliably sent to the display unit 502). Therefore, the video of a highly reliable visitor or dwelling entrance Is displayed on the display unit 502, the visitor's voice (transmitted voice) is output from the parent machine call unit 501 as a highly reliable received voice.

  Further, when a resident performs a predetermined call end operation in the master unit operation unit 500 of the living room master unit 5 during establishment of the call as described above, the control unit 505 that detects this operation controls the above-described call. The line is interrupted and the call can be terminated.

  As is apparent from the above description, in the intercom system according to the third embodiment of the present invention, a call from the entrance slave unit 4 is sent to the room master unit 5 that performs wireless communication with the entrance slave unit. When the resident who responds to the call establishes a call with the visitor, a call signal is transmitted as a data signal transmitted / received between the entrance slave unit 4 and the room master unit 5 capable of wireless communication. In addition, the reliability of the video signal and the audio signal is improved, and stable and reliable wireless communication can be performed.

  In the intercom system according to the third embodiment of the present invention, the entrance cordless handset 1 is used as a data signal that increases reliability in performing stable and reliable wireless communication between the entrance cordless handset 4 and the living room base phone 5. A call signal indicating a call by a visitor by detecting an operation of the slave unit operation unit 400, an audio signal for establishing a call input by the visitor to the slave unit call unit 401, and captured by the video imaging unit 402 Although the video signal indicating the received video and the audio signal for establishing the call input by the resident to the base unit call unit 501 of the room base unit 5 are applied, the present invention is not limited to this mode. For example, only the call signal, the video signal, and the audio signal, which are data signals wirelessly transmitted from the child device transmitting unit 403 of the front door device 4 to the parent device receiving unit 504 of the living room parent device 5, are signals in the third embodiment. Processing can also be performed.

  Further, in the intercom system according to the third embodiment of the present invention, the entrance slave unit 4 having the video imaging unit 402 is applied as the entrance slave unit installed at the entrance of the dwelling unit. However, the present invention is limited to this mode. is not. For example, the entrance cordless handset having only a calling / calling function in which the video imaging unit 402 is incomplete can be applied.

  Furthermore, in the intercom system according to the third embodiment of the present invention, the aspect of installing the system in a detached house has been described, but the present invention is not limited to this aspect. For example, the present invention can also be applied to an apartment house such as a condominium. In this aspect, the entrance cordless handset 4 is installed as an entrance entrance to the collective entrance. A controller capable of wireless communication with the device is provided.

  Finally, the interphone system of the present invention has been described with a specific embodiment. However, the present invention is not limited to this embodiment, and any interphone system having any known configuration can be used as long as the effect of the present invention is achieved. However, it goes without saying that it can be adopted.

The block diagram which shows the specific structure of the intercom system (it is a nurse call system) by the 1st Example of this invention. The block diagram which shows the specific structure of the intercom system (it is a nurse call system) by the 2nd Example of this invention. The block diagram which shows the specific structure of the intercom system by the 3rd Example of this invention.

Explanation of symbols

1a, 1b, ... 1n, 1a, 1b, ... 1n, ... Bed slave unit 102 ... Slave unit transmitter 2a, 2a, ... 2b, 2b, ... Hallway light 200, 206 …… Slave side corridor light receiving part (hallway light receiving part)
207 …… Master unit side corridor light transmitter (corridor light transmitter)
3a, 3b …… Nurse call master unit 306 …… Master unit receiver L …… Transmission line 4 …… Entrance slave unit 403 …… Slave unit transmitter 5 …… Home master unit 504 …… Master unit receiver

Claims (3)

Bed slaves (1a, 1b, ... 1n, 1a, 1b, ... 1n, ...) installed on the bed in the patient room for the patient to call the nurse to establish a call, and outside the patient room A corridor lamp (2a, 2a,...) That is installed on the wall of a passage such as a corridor in order to perform wireless communication with the bed slave unit, and a call from the bed slave unit uses the corridor lamp. A nurse call parent (3a) that is informed via the transmission line (L) and that responds to the call by the nurse to establish a call with the patient;
A data signal such as a call signal indicating a call by the patient and a voice signal for establishing the call is assigned to the bed slave unit with the same sequence number using at least two different frequencies or at least two different modulation methods. A slave unit (102) for simultaneously transmitting wirelessly to the corridor lamp,
The corridor lamp receives the data signal assigned the same sequence number wirelessly transmitted from the slave unit transmission unit of the bed slave unit, reassembles the received data signal in sequence number order, An intercom system comprising a corridor lamp receiver (200) for discarding one of the duplicate data signals. Bed slaves (1a, 1b, ... 1n, 1a, 1b, ... 1n, ...) installed on the bed in the patient room for the patient to call the nurse to establish a call, and outside the patient room A corridor lamp (2b, 2b,...) Installed on the wall surface of the corridor or the like for wireless communication with the bed slave unit and a call from the bed slave unit via the corridor lamp. A nurse call parent (3b) is provided for the nurse who is notified by wireless communication and responds to the call to establish a call with the patient,
The bed slave unit is given the same sequence number with at least two different frequencies or at least two different modulation schemes for data signals such as a call signal indicating call by the patient and a voice signal for establishing the call. A slave unit transmitting unit (102) for simultaneously transmitting wirelessly to the corridor lamp,
The corridor lamp receives the data signal assigned the same sequence number wirelessly transmitted from the slave unit transmission unit of the bed slave unit, reassembles the received data signal in sequence number order, When one of the duplicate data signals is missing, the corridor lamp receiving unit (206) for complementing with the other data signal to which the same sequence number is assigned is complemented by the corridor lamp receiving unit. A corridor lamp transmission unit (207) for wirelessly transmitting a data signal to the nurse call master unit simultaneously by assigning the same sequence number at at least two different frequencies or at least two different modulation schemes;
The nurse call master unit receives the data signal assigned with the same sequence number wirelessly transmitted from the corridor lamp transmission unit of the corridor lamp, and reassembles the received data signal in order of the sequence number. An interphone system comprising a master receiver (306) for discarding one of the duplicate data signals. The entrance cordless handset (4) installed outside the dwelling unit to call the resident and establish a call, and the call from the entrance cordless handset installed inside the dwelling unit is notified by wireless communication, A living room parent device (5) is provided for the responding resident to establish a call with the visitor,
The entrance cordless handset is given the same sequence number with at least two different frequencies or at least two different modulation methods for data signals such as a call signal indicating call by the visitor and a voice signal for establishing the call. A slave unit transmission unit (403) for simultaneously transmitting wirelessly to the room master unit;
The living room master unit receives a data signal assigned with the same sequence number wirelessly transmitted from the slave unit transmission unit of the entrance slave unit, and reassembles the received data signal in sequence number order. An interphone system comprising a master receiver (504) for discarding one overlapping data signal.

Images