JP2014045803A - Nurse call system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the rearrangement in installing an arbitrary number of plate slave units and one nurse call slave unit to each bed in each room.SOLUTION: In installing at least two plate slave units 1a and 1b, and one nurse call slave unit 2 to each bed in each room, when the nurse call slave unit is connected to the respective plate slave units, a corridor lamp CPU 30 of a corridor lamp 3 can issue alarm to that effect. By confirming this, the nurse call slave unit can be disconnected so as to maintain the connection state of either one. While the corridor lamp CPU can make automatic setting so that only the plate slave unit to which the nurse call slave unit is connected, or the plate slave unit to which the nurse call slave unit in which a call operation has been made is connected is the effective plate slave unit, the operation of the other plate slave units can be stopped.

Description

  The present invention relates to a nurse call system installed in a medical / nursing care facility, and in particular, when an arbitrary number of plate slave units and one nurse call slave unit are installed in each bed of each room, the rearrangement thereof is performed. Relates to an easy nurse call system.

  Conventionally, as a nurse call system of this kind, when a nursing person in each bed performs a call operation using a nurse call cordless handset, a corridor light is emitted via a plate cordless handset connected to the nurse call cordless handset. It is known that a call is made and a predetermined call notification is made.

  The system in which the same operation is performed includes a collective corridor adapter, a plurality of handset adapters connected to each collective corridor adapter via a bus line and provided for each bed in a hospital room, and the handset adapter. There is disclosed a nurse call device including a nurse call slave device connected to the PC (for example, see Patent Document 1).

  According to this nurse call device, after the power is turned on, a registration table for registering whether or not a dropout / breakage alarm is issued is created, and the polling processing data is obtained by referring to the data of the registration table during the polling processing. If the polling process answer data could not be received despite being sent out, that is, if it was registered in the registration table as not subject to dropout / breakage, it would be possible to avoid dropout / breakout alarms. it can. Therefore, when it is necessary not to issue an alarm for any bed position of the collective corridor adapter, an unnecessary dummy cordless handset adapter corresponding to the bed position not to be reported is installed, or the wiring in the collective corridor adapter There is no need to change the number of slave adapter number setting circuits.

JP-A-8-242303

  However, according to the nurse call device described in the background art, it is necessary to register in the registration table for each slave unit so that no disconnection disconnection occurs in the unconnected terminal. As the load on the CPU function increases, the amount of memory used increases. Therefore, it is necessary to rewrite the contents of the registration table every time the slave adapter is rearranged or added, and there is a difficulty in managing it.

  The present invention has been made in order to solve this problem. When installing an arbitrary number of plate slave units and one nurse call slave unit in each bed of each room, the nurse call slave unit is connected. If the corridor lamp determines that only the plate slave unit to which the plate slave unit to be operated or the nurse call slave unit to which the call operation has been made is connected is valid, the nurse call slave unit is not connected or An object of the present invention is to provide a nurse call system in which an overconnection can be easily found, and the plate slave unit can be easily rearranged.

  In order to achieve the above-described object, the nurse call system according to the first aspect of the present invention is installed in each bed of each room of a medical / nursing facility and has at least two plate children to which a nurse call slave unit is connected. This is installed in a common area in the facility such as a staff station and a hallway light for notifying the call by the nurse using the nurse call cordless handset, and the nurse answers the call from the nurse and calls It is the said system which has a nurse call main machine for establishing, and a control machine for controlling a corridor lamp and a nurse call main machine. The corridor light generates a state search signal for checking whether the nurse call slave unit is connected to the plate slave unit, and transmits it to the plate slave unit at the same timing via the same wiring. A corridor lamp CPU is provided. The plate slave unit detects a connection detection circuit for detecting whether or not a nurse call slave unit is connected, and a connection detection state detected by the connection detection circuit by detecting a state search signal transmitted from the corridor lamp. Alternatively, it includes a slave CPU that generates a state detection response signal indicating an unconnected state and transmits the signal to the corridor lamp. The corridor lamp CPU of the corridor lamp transmits the state detection response signal transmitted at the same timing from the plate slave unit via the same wiring, depending on the contents of the connected state and the unconnected state. When a communication error occurs due to the above reason, a stop control signal for stopping the operation of the plate slave unit that is the transmission source of the signal indicating the unconnected state is generated and transmitted to the plate slave unit, and the stop control is performed. It has a function of regenerating the state search signal at the timing after generating the signal and transmitting it to the plate slave unit. The slave unit CPU of the plate slave unit indicates a connection state detected by the connection detection circuit when the slave unit CPU of the plate lamp is in an operation state capable of detecting a state search signal regenerated and transmitted by the corridor lamp CPU. It has a function of generating a detection response signal and transmitting it to the corridor lamp.

  According to the nurse call system of this aspect, the plate slave unit to which the nurse call slave unit is connected among the at least two plate slave units installed in each bed in the same room is regarded as an effective device. While it can be automatically set by the corridor lamp, the operation of the plate slave unit to which the nurse call slave unit is not connected can be stopped.

  Further, in the nurse call system according to the second aspect of the present invention, in the first aspect of the present invention, the corridor lamp CPU of the corridor lamp is transmitted from the plate slave unit at a timing after the state search signal is regenerated. When the state detection response signal is a communication error again, it has a function to issue an alarm.

  According to the nurse call system of such a mode, the nurse call slave unit is not connected to each of at least two plate slave units installed in each bed in the same room, or a communication error occurs due to a failure of the plate slave unit. If this is the case, a warning to that effect can be issued, and the installation of the nurse call slave unit or the repair of the plate slave unit is prompted.

  Further, in the nurse call system according to the third aspect of the present invention, in the second aspect of the present invention, the corridor lamp CPU of the corridor lamp has a normal communication abnormality at a timing after the alarm is issued. It has a function to regenerate a state search signal repeatedly and transmit it to the plate slave unit until recovery. The slave unit CPU of the plate slave unit has a function of generating a state detection response signal indicating a connection state detected by the connection detection circuit at the timing of receiving the state search signal and transmitting it to the corridor lamp.

  According to the nurse call system of such a mode, the nurse call slave unit is not connected to each of at least two plate slave units installed in each bed in the same room, or a communication error occurs due to a failure of the plate slave unit. If this is not the case, the alarm will continue until the communication error is restored to normal, and if the nurse call slave unit is installed or the plate slave unit is repaired while the alarm is being issued, the alarm will be issued. Can be automatically set with a corridor lamp as an effective device, while the connection of the nurse call slave unit is maintained, while the operation of the plate slave unit with the nurse call slave unit removed Can be stopped.

  The nurse call system according to the fourth aspect of the present invention is the nurse call system according to the first aspect of the present invention, wherein the plate slave unit includes a call detection circuit for detecting the presence or absence of a call operation using the nurse call slave unit. I have. The slave unit CPU of the plate slave unit detects a state search signal transmitted from the corridor lamp, and an operation detection response signal indicating a call state or connection state corresponding to the presence or absence of a call operation detected by the call detection circuit Is generated and transmitted to the corridor lamp. The corridor lamp CPU of the corridor lamp is used for identifying the unconnected state when communication abnormality occurs because the contents indicating the operation detection response signal transmitted from the plate slave unit are different in the calling state and the connected state. A stop control signal is generated and transmitted to the plate slave unit, and a state search signal is regenerated and transmitted to the plate slave unit at a timing after the stop control signal is generated. The slave unit CPU of the plate slave unit detects an operation detection response indicating a call state and a connection state detected by the call detection circuit when detecting a state search signal regenerated and transmitted by the corridor lamp CPU of the corridor lamp It has a function to regenerate the signal and send it to the corridor lamp. The corridor lamp CPU of the corridor lamp issues an alarm when a communication error occurs because the operation detection response signal regenerated and transmitted by the slave CPU of the plate slave unit is different between the call state and the connection state. It has a function to do.

  According to the nurse call system of this aspect, each of the nurse call slave units is connected to at least two plate slave units installed in each bed in the same room, While only the nurse call cordless handset is in a call state, while other nurse call cordless handsets have a communication error that is not being operated at all, alarm alerts continue until the communication error is restored to normal. If a nurse call cordless handset is removed during alarm alerting, alarm alerting will be stopped and the plate cordless handset that is connected to the nurse call cordless handset shall be automatically set as a valid device with a corridor light. On the other hand, the operation of the plate slave unit from which the nurse call slave unit has been removed can be stopped.

  In addition, the nurse call system according to the fifth aspect of the present invention is installed in each bed of each room of a medical / care facility, and one or two or more plate slave units to which the nurse call slave unit is connected, It is installed in the hallway light for notifying the call by the nurse using the nurse call cordless handset and the common part in the facility such as the staff station, and the nurse answers the call from the nurse and establishes the call. And a control unit for controlling the corridor lamp and the nurse call master unit. The corridor lamp is a corridor lamp operation unit for setting whether one or more plate slave units are connected to the corridor lamp, and whether or not the nurse call slave unit is connected to the plate slave unit. A corridor lamp CPU that generates a state exploration signal for state exploration and transmits it to the freight slave unit only once on the same wiring. The plate slave unit detects a connection detection circuit for detecting whether or not a nurse call slave unit is connected, and a connection detection state detected by the connection detection circuit by detecting a state search signal transmitted from the corridor lamp. Alternatively, it includes a slave CPU for generating a state detection response signal indicating an unconnected state and transmitting it to the corridor lamp. The corridor lamp CPU of the corridor lamp has the state detection response signal transmitted from the plate slave unit in the connection state when the setting by the corridor lamp operation unit is set to two or more plate slave units connected to the corridor lamp. It has a function to issue an alarm when it is content.

  According to the nurse call system of this aspect, two or more units are set in advance using the corridor lamp operation unit of the corridor lamp as the plate slave units installed on each bed in the room, and all the set unit numbers are set. If the corridor light CPU detects that the nurse call slave unit is connected to the plate slave unit, an alarm can be issued to that effect, and if the nurse call slave unit is removed during alarm alert, The plate can be automatically set in the corridor lamp CPU as an effective device by stopping the notification and the connection of the nurse call slave unit is maintained as an effective device, while the plate from which the nurse call slave unit has been removed The operation of the slave unit can be stopped.

  According to the nurse call system of the present invention, when installing at least two plate slave units and one nurse call slave unit in each bed of each room, the nurse call slave units are connected to the respective plate slave units. If it is, the corridor lamp CPU can issue a warning to that effect, and by confirming this, it is possible to remove the nurse call slave unit so that any one of the connection states is maintained. Become. Further, the corridor lamp CPU automatically sets only the plate slave unit to which the nurse call slave unit is connected or the plate slave unit to which the nurse call slave unit to which the calling operation has been made is valid as the relevant plate slave unit. On the other hand, the operation of the other plate slave units can be stopped, and the nurse call slave unit can be easily found unconnected or overconnected, and the plate slave units can be easily rearranged.

  In addition, according to the nurse call system of the present invention, when one or more plate slave units and one nurse call slave unit are installed in each bed of each room, this number is used as the corridor lamp of the corridor lamp. By setting in advance using the operation unit, the corridor lamp CPU does not require a call operation of the nurse call slave unit, and only the plate slave unit to which the nurse call slave unit is connected is an effective plate slave unit. Can be automatically set, while the operation of the other slave unit can be stopped, and the nurse call slave unit can be easily found unconnected or overconnected, and the plate slave unit can be easily relocated. It becomes.

FIG. 1 is a system explanatory diagram showing the overall configuration of a nurse call system according to an embodiment of the present invention. FIG. 2 is a block diagram showing a specific configuration of the plate slave unit and the nurse call slave unit in the nurse call system according to the embodiment of the present invention. FIG. 3A is a block diagram for explaining a first operation of the nurse call system according to the embodiment of the present invention, and FIG. 3B is a flowchart for explaining the operation. FIG. 4A is a block diagram for explaining a second operation of the nurse call system according to the embodiment of the present invention, and FIG. 4B is a flowchart for explaining the operation. FIG. 5 is a block diagram for explaining a third operation of the nurse call system according to the embodiment of the present invention. FIG. 6 is a flowchart for explaining a third operation of the nurse call system according to the embodiment of the present invention. FIG. 7A is a block diagram for explaining a fourth operation of the nurse call system according to the embodiment of the present invention, and FIG. 7B is a flowchart for explaining the operation.

  Embodiments to which the nurse call system of the present invention is applied will be described below with reference to the drawings.

  FIG. 1 is a system explanatory diagram showing the overall configuration of a nurse call system according to an embodiment of the present invention. This nurse call system is installed in a condominium for elderly people having many single rooms as a medical / nursing care facility, for example.

  The nurse call system shown in the figure has at least two, or one or two or more units installed in each bed of the above-mentioned apartments for elderly people, such as room 201, room 202,. Here, two plate slave units 1a, 1b, 1a, 1b,... Can be connected to the plate slave units 1a, 1b, 1a, 1b,. The nurse call cordless handset 2 composed of a call grip button and hand cordless handset, and the cordless handset / corridor lamp line L1 that is installed near the entrance / exit of each room and on the same wiring (automatically) The corridor lamps 3, 3,... Connected to the plate slave units 1a, 1b, 1a, 1b,... In the room, and the nurse call master unit 4 installed in a common area in the facility such as a staff station. And a corridor installed in a common area in the same facility. Connected via the lower light line L2 (one installed near the entrance / exit of each room) and corridor lights 3, 3,... And the nurse call parent 4 connected via the main line L3 And a controller 5 for controlling. It should be noted that the connection between the corridor lamps 3, 3,... And the controller 5 is not limited to the crossover wiring connection as shown in the figure, and may be a bus connection, for example.

  Here, the nurse call cordless handset 2 has a predetermined number that is different depending on the type of call such as a normal call (staff call call), toilet / bath assistance call, drip end call, etc. Is called. The nurse call cordless handset 2 can also be provided with a call function that allows the nurse to establish a call with the nurse (consent with the nurse).

  The plate slave units 1a, 1b, 1a, 1b,... Have the same configuration, and detect calls from the care recipient by using the nurse call slave unit 2 for each call type as described above. The call signal is generated in the following format, and the cared person establishes a call with the nurse.

  The corridor lamps 3, 3,... Have the same configuration, and the nurse call slave unit 2 is used based on the call signal generated by the plate slave units 1a, 1b, 1a, 1b,. The call from the care recipient is notified in a different pattern for each call type as described above (call issue).

  The nurse call master unit 4 notifies the call from the care recipient by using the nurse call slave unit 2 in a different pattern for each call type as described above (call alerting), and the nurse who confirms this call The call is established with the care recipient. In addition, the nurse call parent device 4 is usually provided with a function of individually calling or simultaneously calling the plate child devices 1a, 1b, 1a, 1b,. Note that the configuration mode of the nurse call parent device 4 is not limited to the board-type parent device shown in the figure, and for example, a PC (personal computer) -linked parent device is also suitable.

  Next, specific configurations of the plate slave units 1a, 1b, 1a, 1b,... And the corridor lamps 3, 3, ... shown in FIG. 1 will be described with reference to the block diagram of FIG.

  The plate slave units 1a, 1b, 1a, 1b,... Shown in the figure are a slave unit terminal 10, a connection detection circuit 11, a call detection circuit 12, a slave unit operation unit 13, a slave unit call unit 14, and a slave unit CPU 15. And a handset I / F 16.

  In this plate slave unit 1a, 1b, 1a, 1b,..., The slave unit terminal 10 is connected to the nurse call slave unit 2, for example, via a predetermined line. The connection detection circuit 11 detects whether or not the nurse call handset 2 is connected to the handset terminal 10, that is, a connected state or an unconnected state. Further, the call detection circuit 12 detects the presence / absence of a call operation by the nurse call slave unit 2 connected to the slave unit terminal 10, that is, the above-described connection state resulting from the call state or no operation. .

  The slave unit operation unit 13 includes a staff call call button for an emergency call of a nurse in the room to a nurse in the staff station, and a recovery button for restoring the call / call state to a standby state. Etc. have various operation buttons.

  The slave unit call unit 14 transmits a voice (send message) when a nurse who is in the room or a nurse who is an emergency caller establishes a call with a nurse who is in the staff station. A microphone (MIC) 14a and a speaker (SP) 14b for inputting / outputting voice and received voice) are provided. The speaker 14b can output not only the above-mentioned call function but also the contents of individual calls or simultaneous calls from the nurse call parent device 4 by a nurse in the staff station.

  The slave CPU 15 controls each component of the plate slave. The handset I / F 16 forms a signal transmission path between the handset CPU 15 and the handset / corridor lamp line L1.

  In addition, the subunit | mobile_unit terminal 10, the subunit | mobile_unit operation part 13, the microphone 14a (of the subunit | mobile_unit communication part 14), and the speaker 14b which comprise plate subunit | mobile_unit 1a, 1b, 1a, 1b, ... are shown in FIG. Is provided at a predetermined position of the slave unit.

  Further, the corridor lamps 3, 3,... Shown in the figure are a corridor lamp operation unit 30, a corridor lamp call unit 31, a corridor lamp display unit 32, a corridor lamp CPU 33, a slave unit side corridor lamp I / F 34, and a controller. It has side corridor lamp I / F35.

  In the corridor lamps 3, 3,..., The corridor lamp operation unit 30 is constituted by, for example, a touch panel arranged on the front surface of the corridor lamp display unit 32, and a nurse in the vicinity of the entrance / exit of each room is a staff station. It has various operation buttons such as a staff call call button for urgently calling a nurse in the room and a recovery button for restoring the call / call state to a standby state. The corridor lamp operation unit 30 is not limited to the mode of the operation buttons on the touch panel as described above, but the plate slave units 1a, 1b, 1a, 1b,... Connected to the corridor lamp. For example, a DIP switch is provided as a function for setting whether or not one is two or more.

  The corridor lamp call unit 31 is a microphone that inputs and outputs voices (transmitted voice and received voice) when a nurse at the entrance of a room establishes a call with a nurse in the staff station. MIC) 31a and speaker (SP) 31b. The speaker 31b outputs not only a call function as described above but also a call from a care recipient by using the nurse call handset 2 in a different pattern for each call type as described above (call alerting). can do. Moreover, the speaker 31b can sound-output the content of the individual call or simultaneous call from the nurse call parent machine 4 by the nurse in the staff station. Furthermore, the speaker 31b can output sound as an alarm report described later.

  The corridor lamp display unit 32 is composed of various display media such as an LED, an LCD, and an organic EL display, for example, and calls from the care recipient by using the nurse call handset 2 for each call type as described above. , It can be displayed (call alert) in different patterns. The corridor lamp display unit 32 can display not only the call notification function as described above but also the contents thereof as an alarm notification described later.

  The corridor lamp CPU 33 controls each component of the corridor lamp. The handset side corridor lamp I / F 34 forms a signal transmission path between the corridor lamp CPU 33 and the handset / halllight line L1. The controller-side corridor lamp I / F 35 forms a signal transmission path between the corridor lamp CPU 33 and the corridor lamp line L2.

  The corridor lamp operating unit 30, the microphone 31a (of the corridor lamp call unit 31), the speaker 31b, and the corridor lamp display unit 32 constituting the corridor lamps 3, 3,... Are provided at predetermined positions.

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

"First action"
The first operation will be described with reference to a block diagram in FIG. 3A and a flowchart in FIG. For example, in the room 201 shown in FIG. 1, the nurse call master unit 2 is connected only to the slave unit terminal 10 of one plate slave unit 1 a among the plate slave units 1 a and 1 b installed in each bed in the same room. Is connected in advance, and when the controller 5 is turned on at the timing when such construction is completed, it is controlled by the controller 5 that detects this (installed in the vicinity of the entrance / exit of the room 201). The corridor lamp CPU 33 of the corridor lamp 3 shown in FIG. 2 determines whether the nurse call slave unit 2 is connected to the slave unit terminals 10 of the plate slave units 1a and 1b at a predetermined interval, for example, at regular intervals of 100 ms. A state search signal for searching for the state is generated (steps ST1 and ST2). This state search signal is transmitted from the corridor lamp CPU 33 to the slave unit CPU 15 via the slave unit side corridor lamp I / F 34, the slave unit / hall corridor lamp line L1, and the slave unit I / F 16 of the plate slave units 1a and 1b. The

  When the slave CPUs 15 of the plate slaves 1a and 1b detect state search signals transmitted from the corridor lamp 3 on the same wiring at the same timing, the nurse call is based on the detection result of the connection detection circuit 11. It is confirmed whether the subunit | mobile_unit 2 is connected to the subunit | mobile_unit terminal 10. FIG. Here, since the nurse call slave unit 2 is connected in advance to the slave unit terminal 10 of the plate slave unit 1a as shown in FIG. 3 (A), this connection state is also indicated by the detection result of the connection detection circuit 11. The slave CPU 15 that has confirmed the above generates a state detection response signal indicating the connection state (step ST3). Further, the state detection response signal generated by the slave CPU 15 of the plate slave unit 1a passes through the slave unit I / F 16, the slave unit / corridor lamp line L1, and the slave unit side corridor lamp I / F 34 of the corridor lamp 3. Is transmitted to the corridor lamp CPU33.

  On the other hand, since the nurse call slave unit 2 is not connected to the slave unit terminal 10 of the plate slave unit 1b as shown in FIG. 3A, this unconnected state is determined based on the detection result of the connection detection circuit 11. The slave CPU 15 that has confirmed the above generates a state detection response signal indicating the unconnected state (step ST4). Further, the state detection response signal generated by the slave CPU 15 of the plate slave unit 1b passes through the slave unit I / F 16, the slave unit / corridor lamp line L1, and the slave unit side corridor lamp I / F 34 of the corridor lamp 3. Is transmitted to the corridor lamp CPU33.

  The corridor lamp CPU 33 of the corridor lamp 3 receives each state detection response signal transmitted at the same timing on the same wiring from the plate slave units 1a and 1b, for example, 10 ms after the generation of the aforementioned state exploration signal. When receiving at the timing after the elapse, the contents indicating the state detection response signal are different between the connected state and the unconnected state, and the signal cannot be received along with the error information. At this time, the plate slave units 1a, 1b It is impossible to determine which of the plate slave units is connected or not connected to the nurse call slave unit 2 or which plate slave unit is out of order. Therefore, the corridor lamp CPU 33 generates a stop control signal for stopping the operation of the plate slave unit 1b that is the transmission source of the signal indicating the unconnected state (step ST5). The stop control signal is transmitted from the corridor lamp CPU 33 to the slave unit CPU 15 via the slave unit side corridor lamp I / F 34, the slave unit / hall corridor lamp line L1, and the slave unit I / F 16 of the plate slave units 1a and 1b. The

  Further, the corridor lamp CPU 33 of the corridor lamp 3 regenerates the state search signal after the generation of the stop control signal and after 100 ms elapsed from the first timing at which the state search signal is generated (step ST6). . This state search signal is transmitted to the slave CPUs 15 of the plate slave units 1a and 1b via the same transmission path as described above.

  Here, out of the slave CPUs 15 of the plate slaves 1a and 1b, the slave CPU 15 of the plate slave 1a is determined that the stop control signal transmitted from the corridor lamp 3 is an invalid signal, and the state search is performed. By detecting the signal, a state detection response signal indicating the connection state is regenerated (step ST7). The state detection response signal regenerated by the slave CPU 15 of the plate slave 1a is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 through the same transmission path as described above.

  On the other hand, since the stop CPU 15 of the plate slave 1b is determined that the stop control signal transmitted from the corridor lamp 3 is a valid signal, the operation of the slave is stopped. Therefore, the state detection response signal like the slave CPU 15 of the plate slave 1a is not regenerated.

  When the corridor lamp CPU 33 of the corridor lamp 3 receives the state detection response signal transmitted from the plate slave unit 1a, for example, at the timing after 10 ms has elapsed after the regeneration of the state exploration signal, the two plates Of the child devices 1a and 1b, the plate child device 1a in which the nurse call child device 2 is connected to the child device terminal 10 can be automatically set as an effective device (steps ST8 and ST9).

  As described above, according to the plate slave unit 1b whose operation is stopped by the stop control signal, for example, when the power supply to the system is restarted or when the nurse call slave unit 2 is restarted at the slave unit terminal 10. When connected, the operation can be resumed under the control of the slave CPU 15 that has detected this.

  According to the “first operation (steps ST1 to ST9)”, the same operation is performed not only in the above-described room 201 but also in other rooms, so that the plate slave units 1a and 1b installed in the respective beds. When the nurse call master unit 2 is connected in advance only to the slave terminal 10 of any one of the corresponding slave units, the corridor lamp CPU 30 of the corridor lamp 3 automatically sets that slave unit as an effective device. On the other hand, the operation of other plate slave units can be stopped.

  Further, according to the “first operation (steps ST1 to ST9)”, the two plate slave units 1a and 1b are applied as the plate slave units installed in each bed of each room. It is not limited. For example, even when three or more plate slave units are applied and the nurse call master unit 2 is connected in advance only to the slave unit terminal 10 of any one of the plate slave units, While it can be automatically set by the corridor lamp CPU 30 of the corridor lamp 3 as an effective device, the operation of other plate slave units can be stopped.

"Second action"
Next, the second operation will be described with reference to a block diagram in FIG. 4A and a flowchart in FIG. For example, in the room 201 shown in FIG. 1, when the nurse call master unit 2 is not connected in advance to each of the slave unit terminals 10 of the plate slave units 1a and 1b installed in each bed in the same room, When power is applied to the controller 5 at the timing when such construction is completed, the controller 5 that detects this is controlled by the corridor lamp 3 shown in FIG. The corridor lamp CPU 33 searches for a state whether or not the nurse call slave unit 2 is connected to the slave unit terminals 10 of the plate slave units 1a and 1b at a predetermined interval, for example, every 100 ms. A state search signal is generated (steps ST11 and ST12). This state search signal is transmitted from the corridor lamp CPU 33 to the slave unit CPU 15 via the slave unit side corridor lamp I / F 34, the slave unit / hall corridor lamp line L1, and the slave unit I / F 16 of the plate slave units 1a and 1b. The

  When the slave CPUs 15 of the plate slaves 1a and 1b detect state search signals transmitted from the corridor lamp 3 on the same wiring at the same timing, the nurse call is based on the detection result of the connection detection circuit 11. It is confirmed whether the subunit | mobile_unit 2 is connected to the subunit | mobile_unit terminal 10. FIG. Here, since the nurse call slave unit 2 is not connected to the slave unit terminals 10 of the plate slave units 1a and 1b as shown in FIG. 4A, the connection detection circuit 11 detects this unconnected state. The slave CPU 15 confirmed based on the result generates a state detection response signal indicating an unconnected state (steps ST13 and ST14). The state detection response signals generated by the slave CPUs 15 of the plate slave units 1a and 1b are the slave unit I / F 16, the slave unit / hallway lamp line L1, and the slave unit side corridor lamp I / F34 of the hallway lamp 3, respectively. Is transmitted to the corridor lamp CPU33.

  The corridor lamp CPU 33 of the corridor lamp 3 receives each state detection response signal transmitted at the same timing on the same wiring from the plate slave units 1a and 1b, for example, 10 ms after the generation of the aforementioned state exploration signal. When receiving at the timing after the elapse, the content indicating the state detection response signal has been superimposed and transmitted in the unconnected state, so it is confirmed that the connection is abnormal due to the unconnected state. The corridor lamp CPU 33 uses, for example, the speaker 31b of the corridor lamp communication unit 31 and the corridor lamp display unit 32 shown in FIGS. 1 and 2, and the slave unit terminals of the plate slave units 1a and 1b installed in the room 201. 10 can not only issue a warning that the nurse call cordless handset 2 is not connected (step ST15), but also transfer an alarm for giving a similar warning to the nurse call master unit 4. An information signal is generated. This warning signal is transmitted from the corridor lamp CPU 33 to the nurse call master unit 4 via the controller side corridor lamp I / F 35, the corridor lamp line L2, the controller 5, and the master unit line L3.

  When the nurse call master unit 4 receives the warning signal transmitted from the corridor lamp 3, the nurse call slave unit 2 is connected to the slave terminal 10 of the plate slave units 1a and 1b installed in the room 201. An alarm can be issued to indicate that it is not connected (step ST15).

  Next, during the alarm notification as described above, one of the plate slave units 1a and 1b installed in the room 201, here, the slave unit terminal 10 of the plate slave unit 1a. When only the nurse call cordless handset 2 is connected (step ST16), the state search signal that is generated continuously at the timing after this connection and at the regular timing of every 100 ms as described above is sent to the corridor lamp 3. The data is transmitted from the corridor lamp CPU 33 to the slave unit CPU 15 via the slave unit side corridor lamp I / F 34, the slave unit / corridor lamp line L1, and the slave unit I / F 16 of the plate slave units 1a and 1b (step ST17).

  When the slave CPUs 15 of the plate slaves 1a and 1b detect state search signals transmitted from the corridor lamp 3 at the same timing (again) on the same wiring, the detection results of the connection detection circuit 11 are used. Next, it is confirmed whether the nurse call handset 2 is connected to the handset terminal 10. Here, since the nurse call slave unit 2 is newly connected to the slave unit terminal 10 of the plate slave unit 1a as shown in FIG. 4A, this connection state is determined based on the detection result of the connection detection circuit 11. The child CPU 15 that has confirmed the above regenerates a state detection response signal indicating the connection state (step ST18). The state detection response signal regenerated by the slave CPU 15 of the plate slave 1a is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 through the same transmission path as described above.

  On the other hand, since the nurse call slave unit 2 is not connected to the slave unit terminal 10 of the plate slave unit 1b as shown in FIG. 4A, this unconnected state is determined based on the detection result of the connection detection circuit 11. The slave CPU 15 that has confirmed the above regenerates a state detection response signal indicating the unconnected state (step ST19). Further, the state detection response signal regenerated by the slave CPU 15 of the plate slave 1b is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 through the same transmission path as described above.

  The corridor lamp CPU 33 of the corridor lamp 3 regenerates the respective state detection response signals transmitted at the same timing on the same wiring from the plate slave units 1a and 1b, When receiving at the timing after the elapse of 10 ms, the contents indicating the state detection response signal are different between the connected state and the unconnected state, and the signal cannot be received along with the error information. It cannot be determined which of the plate slave units 1a and 1b is in the connected or unconnected state of the nurse call slave unit 2 or which plate slave unit is out of order. Therefore, the corridor lamp CPU 33 generates a stop control signal for stopping the operation of the plate slave unit 1b that is the transmission source of the signal indicating the unconnected state (step ST20). The stop control signal is transmitted from the corridor lamp CPU 33 to the slave unit CPU 15 via the slave unit side corridor lamp I / F 34, the slave unit / hall corridor lamp line L1, and the slave unit I / F 16 of the plate slave units 1a and 1b. The

  Further, the corridor lamp CPU 33 of the corridor lamp 3 regenerates the state search signal after the generation of the stop control signal and after 100 ms elapsed from the second timing when the state search signal is regenerated (step). ST21). This state search signal is transmitted to the slave CPUs 15 of the plate slave units 1a and 1b via the same transmission path as described above.

  Here, out of the slave CPUs 15 of the plate slaves 1a and 1b, the slave CPU 15 of the plate slave 1a is determined that the stop control signal transmitted from the corridor lamp 3 is an invalid signal, and the state search is performed. By detecting the signal, a state detection response signal indicating the connection state is regenerated (step ST22). This state detection response signal is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 through the same transmission path as described above.

  On the other hand, since the stop CPU 15 of the plate slave 1b is determined that the stop control signal transmitted from the corridor lamp 3 is a valid signal, the operation of the slave is stopped. Therefore, the state detection response signal like the slave CPU 15 of the plate slave 1a is not regenerated.

  When the corridor lamp CPU 33 of the corridor lamp 3 receives the state detection response signal transmitted from the plate slave unit 1a, for example, at the timing after 10 ms elapses after the regeneration of the state exploration signal, the corridor lamp 3 While the alarm 3 is being stopped by the lamp 3 and the nurse call master unit 4, the plate child in which the nurse call slave unit 2 is connected to the slave terminal 10 out of the two plate slave units 1a and 1b. The machine 1a can be automatically set as an effective device (steps ST23 and ST24).

  As described above, according to the plate slave unit 1b whose operation is stopped by the stop control signal, for example, when the power supply to the system is restarted or when the nurse call slave unit 2 is restarted at the slave unit terminal 10. When connected, the operation can be resumed under the control of the slave CPU 15 that has detected this.

  According to the “second operation (steps ST11 to ST24)”, the same operation is performed not only in the above-described room 201 but also in other rooms, so that the plate slave units 1a and 1b installed in each bed. As an operation when the nurse call slave unit 2 is not connected to each slave unit terminal 10, when the nurse call slave unit 2 is connected to the slave unit terminal 10 of any one of the plate slave units, While the plate slave unit can be automatically set by the corridor lamp CPU 30 of the corridor lamp 3 as an effective device, the operation of other plate slave units can be stopped.

"Third action"
Next, the third operation will be described with reference to the block diagram of FIG. 5 and the flowchart of FIG. For example, when the nurse call master unit 2 is connected to the slave unit terminals 10 of the plate slave units 1a and 1b installed in each bed in the room 201 shown in FIG. When power is turned on to the controller 5 at the timing when such construction is completed, the corridor of the corridor lamp 3 shown in FIG. 2 is controlled by the controller 5 that detects this (installed in the vicinity of the entrance / exit of the room 201). The lamp CPU 33 is in a state for investigating whether or not the nurse call slave unit 2 is connected to the slave unit terminals 10 of the plate slave units 1a and 1b at a predetermined interval, for example, every 100 ms. A search signal is generated (steps ST31 and ST32). This state search signal is transmitted from the corridor lamp CPU 33 to the slave unit CPU 15 via the slave unit side corridor lamp I / F 34, the slave unit / hall corridor lamp line L1, and the slave unit I / F 16 of the plate slave units 1a and 1b. The

  When the slave CPUs 15 of the plate slaves 1a and 1b detect state search signals transmitted from the corridor lamp 3 on the same wiring at the same timing, the nurse call is based on the detection result of the connection detection circuit 11. It is confirmed whether the subunit | mobile_unit 2 is connected to the subunit | mobile_unit terminal 10. FIG. Here, since the nurse call slave unit 2 is connected to each of the slave unit terminals 10 of the plate slave units 1a and 1b as shown in FIG. 5, this connection state is determined based on the detection result of the connection detection circuit 11. The slave CPU 15 that has confirmed the above generates state detection response signals indicating connection states (steps ST33 and ST34). The state detection response signals generated by the slave CPUs 15 of the plate slave units 1a and 1b are the slave unit I / F 16, the slave unit / hallway lamp line L1, and the slave unit side corridor lamp I / F34 of the hallway lamp 3, respectively. Is transmitted to the corridor lamp CPU33.

  The corridor lamp CPU 33 of the corridor lamp 3 receives each state detection response signal transmitted at the same timing on the same wiring from the plate slave units 1a and 1b, for example, 10 ms after the generation of the aforementioned state exploration signal. When receiving at the timing after the elapse of time, the content indicating the state detection response signal is superimposed and transmitted in the connected state, so it is confirmed that the communication is normal due to the connected state (step ST35). The corridor lamp CPU 33 sends the state search signal generated continuously at the regular timing of every 100 ms as described above to the slave unit side corridor lamp I / F 34, the slave unit / corridor lamp line L1, the plate slave unit. The data is sent to the slave CPU 15 via the slave I / F 16 of 1a and 1b (step ST36).

  When the slave CPUs 15 of the plate slaves 1a and 1b detect state search signals transmitted (again) at the same timing on the same wiring from the corridor lamp 3, respectively, based on the detection result of the call detection circuit 11 Next, the presence or absence of a call operation using the nurse call handset 1 connected to the handset terminal 10 is confirmed. Here, out of the nurse call slave units 2 connected to the slave unit terminals 10 of the plate slave units 1a and 1b, only the nurse call slave unit 2 connected to the slave unit terminal 10 of the plate slave unit 1a is called. If it is not, the slave CPU 15 confirming this call state based on the detection result of the call detection circuit 12 generates an operation detection response signal indicating the call state (step ST37). Further, the operation detection response signal generated by the slave CPU 15 of the plate slave unit 1a passes through the slave unit I / F 16, the slave unit / corridor lamp line L1, and the slave unit side corridor lamp I / F 34 of the corridor lamp 3. Is transmitted to the corridor lamp CPU33.

  On the other hand, since the nurse call handset 2 connected to the handset terminal 10 of the plate handset 1b is not operated at all, the handset CPU 15 confirming this state based on the detection result of the call detection circuit 12 An operation detection response signal indicating the state is generated (step ST38). The operation detection response signal generated by the slave CPU 15 of the plate slave unit 1b passes through the slave unit I / F 16, the slave unit / corridor lamp line L1, and the slave unit side corridor lamp I / F 34 of the corridor lamp 3. Is transmitted to the corridor lamp CPU33.

  The corridor lamp CPU 33 of the corridor lamp 3 regenerates the operation detection response signals transmitted at the same timing on the same wiring from the plate slave units 1a and 1b, after regenerating the state search signal, for example, When receiving at the timing after the elapse of 10 ms, the contents indicating the operation detection response signal are different depending on the calling state and the connected state, so it is confirmed that the communication abnormality is the first time (step ST39). At the time of such confirmation, the corridor lamp CPU 33 generates a stop control signal for identifying the unconnected state (step ST40). This stop control signal is transmitted from the corridor lamp CPU 33 to the slave unit CPU 15 via the slave unit side corridor lamp I / F 34, the slave unit / hall corridor lamp line L1, and the slave unit side I / F 16 of the plate slave units 1a and 1b. Is done.

  Further, the corridor lamp CPU 33 of the corridor lamp 3 regenerates the state search signal after the generation of the stop control signal and after 100 ms elapsed from the second timing when the state search signal is regenerated ( Step ST41). This state search signal is transmitted to the slave CPUs 15 of the plate slave units 1a and 1b via the same transmission path as described above.

  Here, out of the slave CPUs 15 of the plate slaves 1a and 1b, the slave CPU 15 of the plate slave 1a is determined that the stop control signal transmitted from the corridor lamp 3 is an invalid signal, and the state search is performed. By detecting the signal, an operation detection response signal indicating the calling state is regenerated (step ST42). This operation detection response signal is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 through the same transmission path as described above.

  Further, for the slave CPU 15 of the plate slave 1b, an operation detection response indicating that the stop control signal transmitted from the corridor lamp 3 is an invalid signal and indicating the connection state by detecting the state search signal. The signal is regenerated (step ST43). This operation detection response signal is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 through the same transmission path as described above.

  The corridor lamp CPU 33 of the corridor lamp 3 receives the respective operation detection response signals transmitted from the plate slave units 1a and 1b on the same wiring at the same timing after the above-described state search signal is regenerated. When receiving at the timing after the elapse of 10 ms, since the contents indicating the operation detection response signal are still different in the call state and the connection state, it is confirmed that the communication abnormality is the second time (step ST44). At the time of such confirmation, the corridor lamp CPU 33 uses, for example, the speaker 31b of the corridor lamp communication unit 31 and the corridor lamp display unit 32 shown in FIG. 1 and FIG. In addition to being able to issue an alarm to the effect that an abnormality has occurred in the nurse call slave unit 2 connected to the slave unit terminal 1b or the plate slave unit (step ST45), a similar alarm is also provided. An alarm transmission signal for issuing a notification to the nurse call master unit 4 is generated. This warning signal is transmitted from the corridor lamp CPU 33 to the nurse call master unit 4 via the controller side corridor lamp I / F 35, the corridor lamp line L2, the controller 5, and the master unit line L3.

  When the nurse call master unit 4 receives the warning signal transmitted from the corridor lamp 3, the nurse call master unit 4 is installed in the slave unit terminal 10 of the plate slave units 1a and 1b installed in the No. 201 room, respectively. It is possible to issue a warning to the effect that an abnormality has occurred in the nurse call slave unit 2 connected to each of the slave unit terminals 10 of the plate slave units 1a and 1b or the plate slave unit (step ST45).

  Next, during the alarm notification as described above, any one of the plate slave units 1a and 1b installed in the room 201, here, the slave unit terminal 10 of the plate slave unit 1b. When the connected nurse call cordless handset 2 is removed (step ST46), the state search signal that is generated continuously at the timing after the removal and at the regular timing of every 100 ms as described above is displayed on the plate. The data is transmitted to the slave CPUs 15 of the slaves 1a and 1b (step ST47).

  When the slave CPUs 15 of the plate slaves 1a and 1b detect state search signals transmitted (again) at the same timing on the same wiring from the corridor lamp 3, respectively, based on the detection result of the connection detection circuit 10 Next, it is confirmed whether the nurse call handset 2 is connected to the handset terminal 10. Here, since the nurse call handset 2 is connected to the handset terminal 10 of the plate handset 1a as shown in FIG. 6, this connection state is confirmed based on the detection result of the connection detection circuit 11. The subunit | mobile_unit CPU15 produces | generates the state detection response signal which shows a connection state (step ST48). According to the slave CPU 15 of the plate slave unit 1a, when the nurse call slave unit 2 connected to the slave unit terminal 10 is being called, it can be detected based on the detection result of the call detection circuit 11. Can also generate an operation detection response signal indicating a call state (step ST48). The state detection response signal or the operation detection response signal regenerated by the slave CPU 15 of the plate slave 1a is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 through the same transmission path as described above.

  On the other hand, since the nurse call slave unit 2 is removed and not connected to the slave unit terminal 10 of the plate slave unit 1b, as shown in FIG. The slave CPU 15 that has confirmed the above generates a state detection response signal indicating the unconnected state (step ST49). Further, the state detection response signal regenerated by the slave CPU 15 of the plate slave 1b is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 through the same transmission path as described above.

  The corridor lamp CPU 33 of the corridor lamp 3 regenerates the above-described state exploration signal for each state detection response signal or operation detection response signal transmitted at the same timing on the same wiring from the plate slave units 1a and 1b. For example, when receiving at a timing after 10 ms has elapsed, the contents indicating the state detection response signal differ between the connected state and the unconnected state, and signal reception cannot be performed with the error information. Therefore, it cannot be determined which of the plate slave units 1a and 1b is in the connected or unconnected state of the nurse call slave unit 2 or which of the plate slave units is out of order. Therefore, the corridor lamp CPU 33 regenerates a stop control signal for stopping the operation of the plate slave unit 1b that is a transmission source of the signal indicating the unconnected state (step ST50). The stop control signal is transmitted to the slave CPUs 15 of the plate slave units 1a and 1b via the same transmission path as described above.

  Further, the corridor lamp CPU 33 of the corridor lamp 3 regenerates the state search signal after the generation of the stop control signal and after the elapse of 100 ms counted from the third timing when the state search signal is regenerated (step). ST51). This state search signal is transmitted to the slave CPUs 15 of the plate slave units 1a and 1b via the same transmission path as described above.

  Here, out of the slave CPUs 15 of the plate slaves 1a and 1b, the slave CPU 15 of the plate slave 1a is determined that the stop control signal transmitted from the corridor lamp 3 is an invalid signal, and the state search is performed. By detecting the signal, a state detection response signal indicating the connection state or an operation detection response signal indicating the calling state is regenerated (step ST52). This state detection response signal or operation detection response signal is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 via the same transmission path as described above.

  On the other hand, since the stop CPU 15 of the plate slave 1b is determined that the stop control signal transmitted from the corridor lamp 3 is a valid signal, the operation of the slave is stopped. Therefore, the state detection response signal or the operation detection response signal like the slave CPU 15 of the plate slave 1a is not regenerated.

  The corridor lamp CPU 33 of the corridor lamp 3 uses, for example, the state detection response signal or the operation detection response signal transmitted from the plate slave unit 1a after the regeneration of the above-described state exploration signal, for example, after 10 ms has elapsed. When the timing is received, the ongoing alarm is stopped in the corridor lamp 3 and the nurse call master unit 4, and the nurse call slave unit 2 is connected to the slave unit terminal 10 of the two plate slave units 1a and 1b. Can be automatically set as an effective device (steps ST53 and ST54).

  As described above, according to the plate slave unit 1b whose operation is stopped by the stop control signal, for example, when the power supply to the system is restarted or when the nurse call slave unit 2 is restarted at the slave unit terminal 10. When connected, the operation can be resumed under the control of the slave CPU 15 that has detected this.

  According to the “third operation (steps ST31 to ST54)”, the same operation is performed not only in the above-described room 201 but also in other rooms, whereby the plate slave units 1a and 1b installed in each bed. As an operation when the nurse call slave unit 2 is connected to each of the slave unit terminals 10, when the nurse call slave unit 2 is removed from the slave unit terminal 10 of any one of the plate slave units, the nurse call slave unit While the plate slave device in which the connection 2 is held can be automatically set by the corridor lamp CPU 30 of the corridor lamp 3 as an effective device, the operation of other plate slave devices can be stopped.

  Further, according to the “third operation (steps ST31 to ST54)”, the two plate slave units 1a and 1b are applied as the plate slave units installed in each bed of each room. It is not limited. For example, when three or more plate child devices are applied and the nurse call child device 2 is connected to each child device terminal 10, another connection is maintained while maintaining any one of the connection states thereafter. Even when the nurse call slave unit 2 is removed from the slave unit terminal 10 of the plate slave unit so that the state is released, the plate slave unit in which the connection of the nurse call slave unit 2 is maintained is effective. While the apparatus can be automatically set by the corridor lamp CPU 30 of the corridor lamp 3, the operation of the other plate slave units can be stopped.

"Fourth operation"
Next, a fourth operation will be described with reference to a block diagram of FIG. 7A and a flowchart of FIG. For example, in the room 201 shown in FIG. 1, the number of the plate slave units installed in each bed in the room is the corridor shown in FIGS. 1 and 2 (installed in the vicinity of the entrance / exit of the room 201). Two units are set in advance using the corridor lamp operating unit 30 of the lamp 3 (steps ST61 and ST62). In this setting state, the nurse call master unit 2 is connected to the slave terminal 10 of the plate slave units 1a and 1b, respectively. When connected, when the power is turned on at the timing when such construction is completed, the corridor lamp CPU33 of the corridor lamp 3 that is controlled by the controller 5 that has detected the construction, For example, at a regular timing every 100 ms, a state search signal for searching for a state whether or not the nurse call handset 2 is connected to the handset terminal 10 of the plate handset 1a, 1b is generated (step) T63). This state search signal is transmitted from the corridor lamp CPU 33 to the slave unit CPU 15 via the slave unit side corridor lamp I / F 34, the slave unit / hall corridor lamp line L1, and the slave unit I / F 16 of the plate slave units 1a and 1b. The

  When the slave CPUs 15 of the plate slaves 1a and 1b detect state search signals transmitted from the corridor lamp 3 on the same wiring at the same timing, the nurse call is based on the detection result of the connection detection circuit 11. It is confirmed whether the subunit | mobile_unit 2 is connected to the subunit | mobile_unit terminal 10. FIG. Here, since the nurse call slave unit 2 is connected to each of the slave unit terminals 10 of the plate slave units 1a and 1b as shown in FIG. 7A, this connection state is detected by the detection result of the connection detection circuit 11. The slave CPU 15 confirmed on the basis of each generates a state detection response signal indicating the connection state (steps ST64 and ST65). The state detection response signals generated by the slave CPUs 15 of the plate slave units 1a and 1b are the slave unit I / F 16, the slave unit / hallway lamp line L1, and the slave unit side corridor lamp I / F34 of the hallway lamp 3, respectively. Is transmitted to the corridor lamp CPU33.

  The corridor lamp CPU 33 of the corridor lamp 3 transmits a state detection response transmitted at the same timing on the same wiring from the two plate slave units 1a and 1b corresponding to the number of units caused by the setting state of the corridor lamp operation unit 30. When receiving a signal after generation of the above-described state search signal, for example, at a timing after 10 ms has elapsed, it should be an initial error when two or more plate slave units are connected. Since the content indicating the state detection response signal has been transmitted in a connected state without causing the error, the nurse call slave units are respectively connected to the slave unit terminals 10 of the plate slave units 1a and 1b installed in the room 201. In addition to being able to issue an alarm notification that 2 is in a connected state (step ST66), an alarm signal for issuing a similar alarm notification to the nurse call master unit 4 is provided. It is formed. This warning signal is transmitted from the corridor lamp CPU 33 to the nurse call master unit 4 via the controller side corridor lamp I / F 35, the corridor lamp line L2, the controller 5, and the master unit line L3.

  When the nurse call master unit 4 receives the warning signal transmitted from the corridor lamp 3, the nurse call slave unit 2 is connected to the slave terminal 10 of the plate slave units 1a and 1b installed in the room 201. An alarm can be issued to indicate that it is in a connected state (step ST66).

  Next, during the alarm notification as described above, one of the plate slave units 1a and 1b installed in the room 201, here, the slave unit terminal 10 of the plate slave unit 1a. When the connected nurse call cordless handset 2 is removed (step ST67), the state search signal that is generated at the timing after the removal and at the regular timing every 100 ms as described above is displayed on the plate. The data is transmitted to the slave CPUs 15 of the slaves 1a and 1b (step ST68).

  When the slave CPUs 15 of the plate slaves 1a and 1b detect state search signals transmitted (again) at the same timing on the same wiring from the corridor lamp 3, respectively, based on the detection result of the connection detection circuit 10 Next, it is confirmed whether the nurse call handset 2 is connected to the handset terminal 10. Here, since the nurse call slave unit 2 is connected to the slave unit terminal 10 of the plate slave unit 1b as shown in FIG. 7A, this connection state is determined based on the detection result of the connection detection circuit 11. The slave CPU 15 that has confirmed the above regenerates a state detection response signal indicating the connection state (step ST69). Further, the state detection response signal regenerated by the slave CPU 15 of the plate slave 1b is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 through the same transmission path as described above.

  On the other hand, since the nurse call slave unit 2 is removed and not connected to the slave unit terminal 10 of the plate slave unit 1a as shown in FIG. 7A, the connection detection circuit 11 detects this unconnected state. The slave CPU 15 confirmed based on the result generates a state detection response signal indicating the unconnected state (step ST70). The state detection response signal generated by the slave CPU 15 of the plate slave 1b is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 through the same transmission path as described above.

  The corridor lamp CPU 33 of the corridor lamp 3 regenerates the respective state detection response signals transmitted at the same timing on the same wiring from the plate slave units 1a and 1b, When receiving at the timing after the elapse of 10 ms, the contents indicating the state detection response signal differ between the connected state and the unconnected state. At this time, any of the plate slave units 1a and 1b is the nurse call child. It cannot be determined whether the machine 2 is connected or not connected. Therefore, the corridor lamp CPU 33 generates a stop control signal for stopping the operation of the plate slave unit 1a that is the transmission source of the signal indicating the unconnected state (step ST71). The stop control signal is transmitted from the corridor lamp CPU 33 to the slave unit CPU 15 via the slave unit side corridor lamp I / F 34, the slave unit / hall corridor lamp line L1, and the slave unit I / F 16 of the plate slave units 1a and 1b. The

  Further, the corridor lamp CPU 33 of the corridor lamp 3 regenerates the state search signal after the generation of the stop control signal and after 100 ms elapsed from the second timing when the state search signal is regenerated (step). ST72). This state search signal is transmitted to the slave CPUs 15 of the plate slave units 1a and 1b via the same transmission path as described above.

  Here, out of the slave CPUs 15 of the plate slaves 1a and 1b, the slave CPU 15 of the plate slave 1b is determined that the stop control signal transmitted from the corridor lamp 3 is an invalid signal, and the state search is performed. By detecting the signal, a state detection response signal indicating the connection state is regenerated (step ST73). This state detection response signal is transmitted to the corridor lamp CPU 33 of the corridor lamp 3 through the same transmission path as described above.

  On the other hand, the child CPU 15 of the plate child machine 1a determines that the stop control signal transmitted from the corridor lamp 3 is a valid signal, so that the operation of the child machine is stopped. Therefore, the state detection response signal like the slave CPU 15 of the plate slave 1b is not regenerated.

  When the corridor lamp CPU 33 of the corridor lamp 3 receives the state detection response signal transmitted from the plate slave unit 1b after the above-described state exploration signal is regenerated, for example, at a timing after 10 ms has elapsed, The alarm notification that is continuously performed in the lamp 3 and the nurse call master unit 4 is stopped, and the nurse call slave unit 2 is connected to the slave unit terminal 10 out of the two plate slave units 1a and 1b. Can be automatically set as an effective device (steps ST74 and ST75).

  Note that, as described above, according to the plate slave unit 1a whose operation is stopped by the stop control signal, for example, when the power supply to the system is restarted or the nurse call slave unit 2 is restarted at the slave unit terminal 10. When connected, the operation can be resumed under the control of the slave CPU 15 that has detected this.

  According to the “fourth operation (steps ST61 to ST75)”, the same operation is performed not only in the above-described room 201 but also in other rooms, so that the plate slave units 1a and 1b installed in each bed. One or two or more units are preset using the corridor lamp operating unit 30 of the corridor lamp 3, and the nurse call slave unit 2 is connected to each of the set slave unit terminals 10 of the plate slave unit. If the corridor lamp CPU 33 detects the alarm, the alarm can be issued. If the nurse call slave 2 is removed from the slave terminal 10 during the alarm, the nurse call slave 2 The corridor lamp CPU 33 can automatically set the plate slave unit, to which the connection of the nurse call slave unit 2 is maintained, as an effective device without requiring a call operation. The operation can be stopped.

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

  For example, according to the embodiment of the present invention, the nurse call parent device 4 installed in a common area in a facility such as a staff station is applied as a device for establishing a call in response to a call from a care recipient. However, it is not limited to this aspect. Specifically, not only the nurse call parent device 4 but also a wireless portable terminal such as a PHS terminal carried by a nurse who is traveling around the facility is applied, and this wireless portable terminal is controlled by the controller 5. You can also Further, the corridor lamps 3, 3,... Can operate without recognizing which plate slave unit the nurse call slave unit 2 is connected to.

1a, 1b, 1a, 1b,... ·········································· At least two plate slave units / one or two or more plate slave units 11
2 …… Nurse call cordless handset 3, 3, ……… Corridor light 30 …… Corridor light operation unit 33 …… Corridor light CPU
4 …… Nurse call master unit 5 …… Control unit

Claims (5)

At least two plate slaves installed in each bed of a medical / nursing care facility room and connected to a nurse call slave unit, and a corridor for notifying a call by a nurse using the nurse call slave unit A nurse call master unit that is installed in a common area in a facility such as a lamp and a staff station, and allows a nurse to answer the call from the nurse and establish a call; and the corridor lamp and the nurse call master unit A nurse call system having a controller for controlling
The corridor light generates a state search signal for searching for a state whether or not the nurse call slave is connected to the plate slave, and the plate slave at the same timing via the same wiring. Equipped with corridor lamp CPU to send to the machine,
The plate slave unit detects a connection detection circuit for detecting whether or not the nurse call slave unit is connected, and detects the state search signal transmitted from the hallway light. A slave CPU that generates a state detection response signal indicating a detected connection state or a non-connection state and transmits the response signal to the corridor lamp;
The corridor lamp CPU of the corridor lamp differs in the state detection response signal transmitted at the same timing from the plate slave unit via the same wiring depending on the contents of the connected state and the unconnected state. When a communication error occurs due to superimposing transmission or the like, a stop control signal is generated to stop the operation of the plate slave that is the transmission source of the signal indicating the unconnected state, and the plate slave And having the function of regenerating the state search signal at the timing after generating the stop control signal and transmitting it to the plate slave unit,
The slave CPU of the plate slave is detected by the connection detection circuit when it is in an operation state capable of detecting the state search signal regenerated and transmitted by the corridor CPU of the corridor. A nurse call system having a function of generating and transmitting a state detection response signal indicating a connection state to the corridor lamp.   The corridor lamp CPU of the corridor lamp has a function of issuing an alarm when the state detection response signal transmitted from the plate slave device is communication abnormality again at the timing after the regeneration of the state exploration signal. The nurse call system according to claim 1, further comprising: The corridor lamp CPU of the corridor lamp repeatedly regenerates the state search signal and transmits it to the plate slave unit until the communication abnormality is normally recovered at the timing after the alarm is issued. Has the function to
The slave unit CPU of the plate slave unit has a function of generating a state detection response signal indicating a connection state detected by the connection detection circuit at a timing when the state search signal is received and transmitting the state detection response signal to the corridor lamp. The nurse call system according to claim 2, further comprising: The plate slave device includes a call detection circuit for detecting the presence or absence of a call operation using the nurse call slave device,
The slave CPU of the slave slave detects the state search signal transmitted from the corridor lamp, and displays a call state or connection state corresponding to the presence or absence of a call operation detected by the call detection circuit. A function of generating an operation detection response signal indicating and transmitting the response signal to the corridor lamp;
The corridor lamp CPU of the corridor lamp is in the unconnected state when a communication error occurs because the contents indicating the operation detection response signal transmitted from the plate slave unit are different in the calling state and the connected state. And generating a stop control signal for identification and transmitting the stop control signal to the plate slave unit at a timing after generating the stop control signal. And
When the slave CPU of the plate slave detects the state search signal regenerated and transmitted by the corridor lamp CPU of the corridor lamp, the call status and connection detected by the call detection circuit A function of regenerating an operation detection response signal indicating a state and transmitting the signal to the corridor lamp;
The corridor lamp CPU of the corridor lamp has a communication error because the operation detection response signal regenerated and transmitted by the slave CPU of the plate slave unit is different in the call state and the connection state. 2. The nurse call system according to claim 1, wherein the nurse call system has a function of issuing an alarm occasionally. One or two or more plate slave units installed in each bed of a medical / nursing care facility room to which a nurse call slave unit is connected and a call by a caregiver using the nurse call slave unit are notified. A corridor lamp, a nurse call master unit installed in a common area in the facility such as a staff station, for the nurse to answer the call from the nurse and establish a call, the corridor lamp and the nurse A nurse call system having a controller for controlling a call master unit,
The corridor lamp includes a corridor lamp operation unit for setting whether one or more plate slave units are connected to the corridor lamp, and the nurse call slave unit is connected to the plate slave unit. A corridor lamp CPU that generates a state exploration signal for state exploration of whether or not and transmits the same to the fret slave unit only once on the same wiring,
The plate slave unit detects a connection detection circuit for detecting whether or not the nurse call slave unit is connected, and detects the state search signal transmitted from the hallway light. A slave CPU for generating a state detection response signal indicating a connected state or a non-connected state to be detected and transmitting it to the corridor lamp;
The corridor lamp CPU of the corridor lamp has the state detection response transmitted from the plate slave unit when the setting by the corridor lamp operation unit is a setting in which two or more plate slave units are connected to the corridor lamp. A nurse call system having a function of issuing an alarm when a signal is the content of a connection state.

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