JP2011194148A - Nurse call system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a personal computer from being damaged, by controlling an activating form of the personal computer which is used as a part of a nurse call master unit depending on the remaining capacity of a battery for an emergency power source device.SOLUTION: The nurse call master unit 3 includes a master unit body 30 communicating with a control device 4, and a display 31 comprising the personal computer for displaying patient information, and is connected to a first uninterruptible power supply 7 for a power source of the display 31. The power source CPU 72 of the first uninterruptible power supply 7 outputs a stop signal for stopping the display 31 when the blackout continues for a predetermined time, and outputs an activating signal for activating the display 31 after electricity is restored. Further, the power source CPU 72 outputs a power-saving activating signal by which the display 31 is activated in a power saving mode in the case the remaining capacity of the uninterruptible power supply battery 71 is less than 50% when the electricity is restored after outputting the stop signal.

Description

  The present invention relates to a nurse call system, and more particularly to a nurse call system in which a personal computer is used as a nurse call master unit and an uninterruptible power supply is connected to the personal computer.

Conventionally, there is a nurse call system provided with an emergency battery in order to make it possible to respond to a call from a patient even during a power failure (see, for example, Patent Document 1).
On the other hand, in a nurse call system, a display device that uses a personal computer is widely used as a display device that displays patient information that is a part of the nurse call parent device (see, for example, Patent Document 2).

JP 2000-308278 A JP 2007-96500 A

The personal computer used in the nurse call system is connected to the uninterruptible power supply and continues to operate in conjunction with other nurse call systems even if a power failure occurs.
However, the uninterruptible power supply simply outputs an on / off control signal, and does not control the operation mode of the personal computer, for example, the power saving mode operation. In addition, the personal computer was not controlled.
For this reason, if power is not stable, such as when a power failure continues and power is restored after a shutdown control (off control) and the personal computer is started up, the power supply is not stable. In some cases, the power supply to the computer stopped and the personal computer was damaged.

  Therefore, in view of such problems, the present invention can control the startup mode of a personal computer used as a part of a nurse call parent device according to the remaining battery capacity of the emergency power supply device, and can prevent the personal computer from being damaged. The purpose is to provide a nurse call system.

In order to solve the above-mentioned problems, the invention of claim 1 includes a nurse call cordless handset for each patient to call a nurse, a corridor lamp for notifying the call by the nurse call cordless handset, and a nurse call. A nurse call master unit for a nurse to respond to a call from the slave unit, and a control device for controlling communication between the nurse call slave unit and the nurse call master unit. It consists of a main unit that communicates with a display device and a display device for displaying patient information. The display device consists of a personal computer connected to an uninterruptible power supply. After that, a nurse signal comprising a power recovery control unit that outputs a disconnection signal for stopping the personal computer and outputs a start signal for starting the personal computer after power recovery. If the remaining capacity of the uninterruptible power supply battery is less than the first predetermined value when the power is restored after the disconnection signal is output, the activation signal output by the power recovery control unit saves the personal computer. It is a power saving start signal that is activated in the power mode.
According to this configuration, if the remaining battery capacity of the uninterruptible power supply is not sufficient even if power is restored after the disconnection signal is sent, the display device starts in the power saving mode. Therefore, when the power failure occurs again immediately after the power recovery, the battery of the uninterruptible power supply can be prevented from being consumed, and the power supply that causes the power failure again after the power recovery and starting up the display device is not stable. Even in this case, the display device can be prevented from being damaged.
Note that the power saving mode refers to a mode in which only the display unit of the personal computer is not activated, or a mode in which the clock frequency is lowered to reduce power consumption.

According to a second aspect of the present invention, in the configuration of the first aspect, when the personal computer receives the power saving start signal, the personal computer transmits a power saving start notification signal to the main unit, and the main unit starts the power saving start. It has a display portion for receiving a notification signal and displaying that the personal computer is in a power saving operation mode.
According to this configuration, since the main unit main body displays that it has been started in the power saving mode, a nurse or the like to use can recognize that there is no failure even when the display on the display device is stopped. .

According to a third aspect of the present invention, in the configuration according to the first or second aspect, the personal computer has a display unit that displays the power saving operation mode when the personal computer is activated in the power saving mode.
According to this configuration, since the display device itself displays that it has started in the power saving mode, a nurse or the like to use can recognize that there is no failure even when the display of the display device is stopped. .

According to a fourth aspect of the present invention, in the configuration according to any one of the first to third aspects, when the personal computer receives the power saving activation signal, the personal computer transmits a power saving activation notification signal to the parent device main body. Is characterized by having a switching control unit that receives a power saving activation notification signal and switches to a single operation mode in which communication with a personal computer is not performed.
According to this configuration, when the display device is activated in the power saving mode, the main body switches to the single operation mode in which communication with the display device is not performed. Therefore, it is possible to respond to the call from the patient without delay regardless of the operation mode state of the display device.

According to a fifth aspect of the present invention, in the configuration according to any one of the first to third aspects, when the uninterruptible power supply transmits a power saving start signal to the personal computer, the power saving start signal is also sent to the control device. And the control device has a switching control unit that receives the power saving start signal and sends a power saving start notification signal to the main unit body. It has a switching control part which switches to the independent operation mode which does not communicate with a computer.
According to this configuration, when the display device is activated in the power saving mode, an operation mode change signal is sent from the control device to the main device body, and the main device body is switched to the single operation mode. Therefore, it is possible to respond to the call from the patient without delay regardless of the operation state of the display device.

According to a sixth aspect of the present invention, in the configuration according to any one of the first to fifth aspects, the power recovery control unit of the uninterruptible power supply is configured such that the remaining capacity of the uninterruptible power supply battery at the time of power recovery is a first predetermined value. If it is less than a second predetermined value smaller than the value, a start signal such as a power saving start signal is not transmitted to the personal computer even if power is restored.
According to this configuration, if the remaining battery level of the uninterruptible power supply is less than the second predetermined value that is further smaller than the first predetermined value, the display device is not activated even if the power is restored. Therefore, even when a power failure occurs again immediately after power recovery, damage to the display device can be prevented.

According to the seventh aspect of the present invention, there is provided a nurse call cordless handset for each patient to call the nurse, a corridor lamp for notifying the call by the nurse call cordless handset, and a nurse to call from the nurse call cordless handset. Has a nurse call master unit for responding, and a control device for controlling communication between the nurse call slave unit and the nurse call master unit, and the nurse call master unit communicates with the control unit main body, A display device for displaying patient information, the display device comprising a personal computer equipped with an uninterruptible power supply device, the uninterruptible power supply device for stopping the operation of the personal computer after a power failure continues for a predetermined time Is a nurse call system that includes a power recovery control unit that outputs a power off signal and outputs a start signal for starting a personal computer after power recovery. Control unit, upon Fukuden after disconnection signal output, if the battery remaining capacity is less than the predetermined value of the uninterruptible power supply, characterized in that it does not transmit a start signal to the personal computer.
According to this configuration, if the remaining battery capacity is not sufficient after the uninterruptible power supply outputs a disconnection signal, the display device is not started. Therefore, there is no case where the power failure occurs again immediately after the power recovery and the uninterruptible power supply device with a small remaining battery capacity is operated, and the display device can be prevented from being damaged due to the battery running out.

According to an eighth aspect of the present invention, in the configuration according to the seventh aspect, the power recovery control unit of the uninterruptible power supply device may have a remaining battery capacity of the uninterruptible power supply device less than a predetermined value when the power is recovered after the disconnection signal is sent. For example, it waits for a predetermined remaining battery capacity to be reached, and then outputs an activation signal.
According to this configuration, if the remaining capacity of the uninterruptible power supply battery is less than a predetermined capacity when the display apparatus is started after the disconnection signal is sent, the display apparatus is not started until the predetermined capacity is reached. It is possible to prevent damage to the display device due to stability.

  According to the present invention, even if the uninterruptible power supply recovers after the disconnection signal is sent, the display device starts or does not start in the power saving mode if the remaining battery capacity of the uninterruptible power supply is not sufficient. Therefore, when the power failure occurs again immediately after the power recovery, it is possible to prevent the uninterruptible power supply battery from being consumed, and the power supply that causes the power failure again after the power recovery and starting up the display device is not stable. However, the display device can be prevented from being damaged.

It is a block diagram which shows an example of the nurse call system which concerns on this invention, and has shown the principal part circuit of each apparatus with the block diagram. It is a sequence diagram which shows the flow of the control signal of the uninterruptible power supply at the time of a power failure and a power recovery. It is a sequence diagram which shows the other flow of the control signal of the uninterruptible power supply at the time of power recovery.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an example of a nurse call system according to the present invention, and shows a main part of each device in a circuit block diagram. As shown in FIG. 1, 1 is a nurse call cordless handset for each patient to call a nurse and 2 is a corridor lamp installed in the corridor for each hospital room to notify the call by the nurse call cordless handset 1. Reference numeral 3 denotes a nurse call master unit that is installed in the nurse station so that a nurse responds to a call from the nurse call slave unit 1, and 4 controls communication between the nurse call slave unit 1 and the nurse call master unit 3. The control device 5 is a nurse call server that stores patient information, and 7 and 8 are uninterruptible power supply devices (first uninterruptible power supply device 7 and second uninterruptible power supply device 8).

  The nurse call cordless handset 1 is connected to the corridor lamp 2 for each hospital room via the transmission line L1, and the corridor lamp 2 is connected to the control device 4 via the corridor lamp main line L2. The nurse call parent device 3 is connected to the control device 4 via a transmission line L3, and the nurse call server 5 is connected to the nurse call parent device 3 via a transmission line L4.

  The nurse call handset 1 is composed of a plate handset 11 that is installed on a wall surface for calling and a call button 12 connected to the plate handset 11, and the plate handset 11 includes a microphone and a speaker (not shown). ) Is incorporated, a slave unit IF 14 for communicating with the corridor lamp 2, a slave unit CPU 15 for controlling the plate slave unit 11, and the like. A call signal is output to the corridor lamp 2 by pressing the call button 12.

  The corridor lamp 2 includes a notification unit 21 for notifying a nurse of a call from the nurse call slave unit 1 by turning on a light emitting unit, a corridor lamp IF 22 for communicating with the nurse call slave unit 1 and the control device 4, a corridor A corridor lamp CPU 23 and the like for controlling the lamp 2 are provided, and a call signal from the nurse call slave unit 1 is transmitted to the control device 4.

  The nurse call master unit 3 is connected to the master unit body 30 for receiving and responding to a call signal transmitted from the corridor lamp 2 via the control device 4 and the nurse call server 5 to obtain and display patient information. And a display device 31 for doing so.

  The main unit body 30 communicates with a display unit 32 composed of an LCD for displaying various information such as call information, a call circuit 33 for responding to a call, a main unit IF 34 for communicating with the control device 4, and a display unit 31. Main unit IF 35, main unit CPU 36 for controlling main unit main unit 30, and the like.

  The display device 31 is composed of a personal computer, a monitor 37 for displaying patient information, a memory 38 for storing call history, patient information, etc., a main unit body 30, a nurse call server 5, and a first uninterruptible power supply device 7. A display device IF 39 for communication, a display device CPU 40 for controlling the display device 31, a display unit 41 including an LED for displaying that the display device 31 is in the power saving mode state, and the like are provided.

  The control device 4 includes a corridor lamp 2, a nurse call parent device 3, a control device IF 44 for communicating with the first uninterruptible power supply device 7, a control device CPU 45 for controlling the control device 4, and the like. The control device 4 and the first uninterruptible power supply device 7 are connected by a transmission line L5.

  The nurse call server 5 is composed of a personal computer like the display device 31 and communicates with a memory 51 for storing patient information, a monitor 52 for displaying patient information and the like, a display device 32 and the second uninterruptible power supply 8. The server IF 53 and the server CPU 54 for controlling the nurse call server 5 are provided.

The first uninterruptible power supply 7 is connected to the display device 31 by a power supply line L6 for supplying power and a signal line L7 for communication, and the second uninterruptible power supply 8 is for supplying power. It is connected to the nurse call server 5 by a power line L8 and a signal line L9 for communication.
The first uninterruptible power supply 7 is a battery 71 that is charged and stored by a commercial power supply, and a power supply CPU 72 that manages the charge capacity of the battery 71 and outputs a control signal to the display device 31 according to the state of the commercial power supply. A power supply IF 73 for communicating with the display device 32 is provided. The second uninterruptible power supply 8 has a configuration similar to that of the first uninterruptible power supply 7.

  The operation of the nurse call system configured as described above will be described below. However, since the operation of receiving a call operation of the nurse call slave unit 1 and responding from the nurse call master unit 3 and making a call is the same as the conventional one, the description is omitted. The control operation of the power supply device 7 will be mainly described. FIG. 2 is a sequence diagram showing the flow of control by the first uninterruptible power supply 7 at the time of power failure and power recovery, and will be described based on FIG.

First, in a normal state where commercial power is supplying power to the first uninterruptible power supply 7, commercial power is supplied from the first uninterruptible power supply 7 to the display device 31 via the power line L6. When a power failure occurs in the commercial power supply, the power supply CPU 72 detects the power failure, switches to the battery mode, is supplied with power from the battery 71, and the operation of the display device 31 is continued.
When the power failure occurs, the main unit 30, the control device 4, the corridor lamp 2, the nurse call slave unit 1, etc. are supplied with power from an emergency battery (not shown) that is installed separately. Configured to handle calls.

Then, when the power failure continues for a certain time (for example, 5 minutes), the power supply CPU 72 outputs a shutdown signal (disconnection signal) s1 via the signal line L7, and stops the display device 31.
The display device 31 that has received the disconnection signal s1 sends the emergency switching signal s2 and the power failure signal s3 to the main unit body 30 at the same time as the display device CPU 40 shuts itself down. The main unit main body 30 displays that the main unit CPU 36 has received the emergency switching signal s2, stops communication with the display device 31 and shifts to the single operation mode, and receives the power failure signal s3 to shut down the display device 31. This is displayed on the unit 32. In this single operation mode, the main unit body 30 and the display device 31 only stop transmission / reception of data, and transmission / reception of an emergency switching release signal and the like described later is continued.

  Thereafter, when the commercial power is restored, the power source CPU 72 reads the remaining amount of the battery 71, and if it is equal to or more than a first predetermined remaining capacity (for example, 50% capacity of the battery fully charged) Supply. In addition, the activation signal s4 is transmitted to the display device 31 through the signal line L7.

The display device 31 that has received the activation signal s4 is activated in the normal mode under the control of the display device CPU40. In addition, an emergency switching release signal s5 and a power failure release signal s6 are transmitted to the main unit body 30 after activation.
Receiving the emergency switching release signal s5, the main unit body 30 resumes communication with the display device 31 under the control of the main unit CPU 36, and further receives the power failure release signal s6 and ends the shutdown display on the display unit 32.

  Next, an operation when the remaining amount of the battery 71 does not reach the first predetermined remaining amount when the commercial power is restored will be described with reference to the sequence diagram of FIG. FIG. 3 shows the operation when the remaining amount of the battery 71 is less than the first predetermined remaining capacity and is equal to or greater than the second predetermined remaining capacity.

The power supply CPU 72 that has detected the power recovery has a power supply that is less than the first predetermined remaining capacity but more than a second predetermined remaining capacity (for example, 20% capacity of the battery fully charged) when the remaining battery capacity is read. Power supply is started via the line L6, but a power saving start signal s11 for operating the display device 31 in the power saving mode is output.
The display device 31 that has received the power saving activation signal s11 is activated in the power saving mode in which the display device CPU 40 does not activate only the monitor 37, and causes the display unit 41 to perform display operation. Thereafter, a power saving start notification signal s12 is transmitted to the main unit body 30.
Upon receiving the power saving activation notification signal s12, the parent device main body 30 displays on the display unit 32 that the parent device CPU 36 indicates that the display device 31 has started up in the power saving mode. However, in this case, communication with the display device 31 is not resumed.

  Then, the power source CPU 72 calculates the time required for charging from the current remaining battery capacity until the remaining capacity of 50%, which is the first predetermined capacity, and when that time elapses, the display device 31 is switched to the normal mode. An activation signal s13 for returning is output. In response to this signal, the display device 31 returns from the power saving mode to the normal mode. This activation signal s13 is the same signal as the activation signal s4 at the time of power recovery shown in FIG. 2, and thereafter, the same control as the flow of the sequence diagram of FIG.

However, if the remaining capacity of the battery 71 at the time of power recovery is less than the second predetermined value, the power supply CPU 72 does not supply power from the power supply line L6 and waits for the battery capacity to return. Further, no control signal is transmitted to the display device 31.
After that, when the capacity of the battery 71 returns to the first predetermined capacity, the power supply CPU 72 outputs a start signal to start the display device 31 in the normal mode.

Thus, even if power is restored after the disconnection signal is sent, if the remaining battery capacity of the uninterruptible power supply 7 is not sufficient to reach the first predetermined value, the display device 31 starts in the power saving mode. When the power failure occurs again immediately after the power recovery, the battery 71 of the uninterruptible power supply 7 can be prevented from being consumed, and the power supply is stable so that the power failure occurs again after the power is restored and the display device 31 is started up. Even if not, damage to the display device 31 can be prevented.
In addition, since the main device main body 30 or the display device 31 itself displays that it has been started in the power saving mode, the nurse or the like to be used is informed that there is no failure even when the display on the display device 31 is stopped. Can be recognized.
Further, when the display device 31 is activated in the power saving mode, the main unit body 30 does not communicate with the display device 31, and therefore responds to the call from the patient without delay regardless of the operation mode state of the display device 31. can do.
Further, if the remaining battery level of the uninterruptible power supply 7 is less than a second predetermined value that is smaller than the first predetermined value, the display device 31 is not activated even if the power is restored. Even when a power failure occurs again, the display device 31 can be prevented from being damaged.

In the above embodiment, the display device 31 is configured to output a power saving start notification signal or the like to the main unit main body 30, but the control device 4 is also similar to the main unit main unit 30 at the time of power failure or power recovery. Since the operation is continued, a signal such as a power saving start notification signal may be transmitted from the control device 4 to the main body 30. In this case, the uninterruptible power supply 7 can easily carry out by outputting a disconnection signal or a power saving start signal to the control device 4.
Further, in the above embodiment, the battery remaining capacity is controlled in two stages of the first predetermined value and the second predetermined value less than that, but for example, the remaining capacity is set to 30% and one threshold value is set. Then, if the value falls below this value, the power saving activation or the like is not performed, and even if the power is restored, the display device 31 may not be activated, but may wait until it returns to, for example, 50%, and then the activation signal may be output.
By such control, there is no case where the power failure occurs again immediately after the power recovery and the uninterruptible power supply 7 operates in a state in which the remaining amount of the battery 71 is small. The situation where it breaks can be prevented reliably. Since the display device 31 is activated when charging reaches a predetermined capacity, the display device 31 does not continue to stop.

  1 ・ Nurse call slave unit 2 ・ ・ Corridor light 3 ・ Nurse call master unit 4 ・ ・ Control device 5 ・ ・ Nurse call server 7 ・ ・ First uninterruptible power supply (uninterruptible power supply) , 30 .. Master unit, 31 .. Display device (personal computer), 32 .. Display unit, 36 .. Master CPU (switching control unit), 37 .. Monitor, 38 .. Memory, 40 .. Display Device CPU 41 ··· Display unit 45 ··· Control device CPU (switching control unit) 51 · · Memory 52 · · Monitor 71 · · Battery 72 · · Power supply CPU (power recovery control unit)

Claims (8)

A nurse call cordless handset that is installed in each bed for a patient to call a nurse, a corridor lamp that notifies a call by the nurse call cordless handset, and a nurse answering a call from the nurse call cordless handset A nurse call parent device, and a control device for controlling communication between the nurse call child device and the nurse call parent device,
The nurse call parent device is composed of a parent device body that communicates with the control device, and a display device for displaying patient information,
The display device is composed of a personal computer to which an uninterruptible power supply is connected, and the uninterruptible power supply outputs a disconnect signal for stopping the personal computer when a power failure continues for a predetermined time, and after power recovery, the A nurse call system comprising a power recovery control unit that outputs a start signal for starting a personal computer,
When power is restored after the disconnection signal is output, if the remaining capacity of the uninterruptible power supply battery is less than a first predetermined value, the activation signal output by the power recovery control unit sets the personal computer in a power saving mode. A nurse call system characterized by a power-saving activation signal that is launched in When the personal computer receives the power saving start signal, it transmits a power saving start notification signal to the main unit body,
2. The nurse call system according to claim 1, wherein the main unit has a display unit that receives the power-saving activation notification signal and displays that the personal computer is in a power-saving operation mode. The nurse call system according to claim 1, wherein the personal computer has a display unit that displays that the personal computer is in the power saving operation mode when the personal computer is activated in the power saving mode. When the personal computer receives the power saving start signal, it transmits a power saving start notification signal to the main unit body,
The base unit has a switching control unit that receives the power saving start notification signal and switches to a single operation mode in which communication with the personal computer is not performed. Nurse call system as described in. When the uninterruptible power supply transmits the power saving start signal to the personal computer, the power saving start signal is also transmitted to the control device,
The control device has a switching control unit that receives the power saving start signal and sends a power saving start notification signal to the main unit body,
The base unit has a switching control unit that receives the power saving start notification signal and switches to a single operation mode in which communication with the personal computer is not performed. Nurse call system as described in. If the remaining capacity of the uninterruptible power supply battery at the time of power recovery is less than a second predetermined value that is less than the first predetermined value, 6. The nurse call system according to claim 1, wherein an activation signal such as a power saving activation signal is not transmitted to the personal computer. A nurse call cordless handset that is installed in each bed for a patient to call a nurse, a corridor lamp that notifies a call by the nurse call cordless handset, and a nurse answering a call from the nurse call cordless handset A nurse call parent device, and a control device for controlling communication between the nurse call child device and the nurse call parent device,
The nurse call parent device is composed of a parent device body that communicates with the control device, and a display device for displaying patient information,
The display device is composed of a personal computer equipped with an uninterruptible power supply, and the uninterruptible power supply outputs a disconnection signal for stopping the operation of the personal computer when a power failure continues for a predetermined time, and after power recovery A nurse call system comprising a power recovery control unit that outputs a start signal for starting the personal computer,
The power recovery control unit does not transmit an activation signal to the personal computer if the remaining battery capacity of the uninterruptible power supply device is less than a predetermined value when power is restored after the disconnection signal is output. Nurse call system. The power recovery control unit of the uninterruptible power supply waits for a predetermined battery remaining capacity to be reached if the battery remaining capacity of the uninterruptible power supply is less than a predetermined value when power is restored after the disconnection signal is sent. The nurse call system according to claim 7, wherein an activation signal is output thereafter.

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