JP2014165712A - Wireless nurse call system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem of a wireless nurse call system which does not use batteries that a loss report is generated with high possibility after failure of pairing, because a receiving section for receiving ACK, and the like, cannot be provided in a transmission section because of the power supply capacity.SOLUTION: Since the information about success of previous pairing is read from a storage section and reset, even when failing in pairing, a loss report of calling operation from a wireless slave unit can be prevented, even if there is no wireless receiving section in the wireless slave unit.

Description

  The present invention relates to a nurse call system installed in a medical facility such as a hospital, and more particularly to a nurse call system in which a call grip button of a patient is wireless.

  Conventionally, as this kind of nurse call, a wireless nurse call system using a battery as a power source of a call button is known. For example, in the nurse call device of Patent Literature 1, a user can call a family member by operating a wireless slave.

Japanese Patent Laid-Open No. 7-249999

However, in the conventional nurse call device, as described in paragraph [0012] of Patent Document 1, it is necessary to perform communication periodically in order to ensure reliability such as detection of battery exhaustion. In a place where a patient always uses a nurse call, the battery is consumed too quickly to be used.
As a measure for improvement, a wireless slave unit that generates power by kinetic energy generated by a call operation and transmits a call signal without using a battery has been desired. However, in this embodiment, a call confirmation signal can be received by the wireless slave unit. Therefore, the reliability of communication with the wireless receiver could not be ensured.

  The present invention has been made to solve the above-described problems. In a wireless slave device that transmits a call signal by power generation, when a connection with a wireless receiver is established by a pairing operation at the start of use, pairing is performed again. Even if the pairing fails when it is performed, it is possible to prevent misreporting from the wireless slave unit by maintaining the pairing state before the failure.

  To achieve this object, a nurse call system according to the present invention receives a nurse call wireless push button installed near a patient, such as on a bed in a hospital room, and a call signal from the nurse call wireless push button. For this reason, a nurse called by the operation of the nurse call radio push button responds to the nurse call master unit installed in the nurse station. The wireless receiver has a pairing start button for pairing with the nurse call wireless push button, and after the pairing start button operation. A storage unit for storing a unique code by receiving a unique code such as an ID of a wireless push button for a nurse call within a certain time, and a wireless receiver The nurse call wireless push button does not have a power supply unit, and instead of the power supply unit, when the push button is pressed, the kinetic energy generated by the press is converted into electrical energy. A wireless signal containing a unique code, and after transmitting the wireless signal, it has a wireless transmission unit that stops operation until it obtains electrical energy by pressing again, and further receives wireless to reduce the kinetic energy by pressing The receiver control unit reads the unique code based on the previous pairing information from the storage unit when the unique code cannot be received within a certain time after the pairing start button operation. When the ring is completed and a call for the same unique code as the unique code stored in the storage unit is received when pairing is not being performed, the nurse If a call with a unique code that is different from the unique code stored in the storage unit is received when pairing is not being performed, the call signal transmission to the nurse call master is suppressed. To do.

  According to the nurse call system of claim 1, even when pairing fails, the information that was previously successfully paired is read from the storage unit and reset, so the wireless slave unit does not have a wireless reception unit Even in this case, it is possible to improve the reliability of pairing and prevent the call operation from the wireless slave unit from being reported.

FIG. 1 is a configuration diagram showing an overall (external) configuration of a nurse call system according to an embodiment of the present invention. FIG. 2 is a block diagram showing specific configurations of the nurse call slave unit and the wireless receiver in the nurse call system according to the embodiment of the present invention. FIG. 3 is a flowchart showing an operation in the nurse call system according to the embodiment of the present invention, wherein (a) shows an operation at the time of pairing, and (b) shows an operation after completion of pairing.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments to which a nurse call system of the invention is applied will be described with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of a nurse call system according to an embodiment of the present invention, and a plurality of nurse call slave units 3, 3,... Installed in hospital beds in order to call a nurse. ··································· Nurse call master unit 1 that receives a call signal from a hospital room and sends a call notification to the nurse station. The corridor lights 5, 5,... That transmit and notify the call signal of the nurse call cordless handset are close to the patient on the bed or the like so that the patient admitted to the bed in the hospital room calls the nurse call master phone. A wireless push button 2 for nurse call installed at a position, and a wireless receiver connected to the nurse call slaves 3, 3,... For receiving a call signal from the nurse call wireless push button 2. Machine 4,4, and ..., and a control device 6 for controlling the communication and operation of the entire nurse call system.

The nurse call parent device 1 is connected to the nurse call child devices 3, 3,...
The nurse call handset 3 is connected with a call grip button 31 for a patient to call a nurse, and a recovery button 33 for notifying the nurse call base unit that the nurse has reached the bed and has completed the response. When the nurse called by the operation of the call grip button 31 responds with the nurse call master unit 1, the nurse has a call section 32 for making a call with the nurse. As shown in FIG. 1, the call unit 32 is integrated with the nurse call slave unit 3 and separate from the nurse call slave unit 3, but the operation is the same only in the appearance.
The nurse call handset 3 can be called if at least one of the call grip button 31 and the wireless receiver 4 is connected. Furthermore, both the call grip button 31 and the wireless receiver 4 can be connected to the nurse call handset 3 by one. It is also preferable to connect to one nurse call slave unit 3.
The wireless receiver 4 has a pairing start button 41 for switching the wireless receiver 4 to the pairing mode by operating at the time of pairing, and an indicator lamp 45 for notifying reception of a calling signal and completion of pairing. .

  FIG. 2 is a block diagram showing a specific configuration of the nurse call wireless push button 2, the nurse call slave 3, and the wireless receiver 4. The nurse call wireless push button 2 includes a movable button 21 exposed on the surface for a patient to call a nurse, a power generation unit 22 that generates power using kinetic energy generated by the operation of the movable button 21, A wireless transmission unit 23 is provided which transmits a call signal together with a unique code stored in advance in the nurse call wireless push button 2 by electric power. The nurse call handset 3 includes a handset CPU 35 that controls each part of the nurse call handset 3 and communicates with the corridor lamp 5 and the wireless receiver 4 in addition to the above-described call section 32 and recovery button 33. ing. In addition to the above-described pairing start button 41 and indicator lamp 45, the wireless receiver 4 receives a calling signal from the nurse call wireless push button 2 together with a unique code, and a nurse call wireless for a pairing partner. A storage unit 42 that stores one pushbutton unique code and a receiver CPU 43 that controls each unit of the wireless receiver 4 are provided.

  The operation of the nurse call system configured as described above according to an embodiment of the present invention will be described below. The operation of calling the nurse by calling the call grip button 31 of the nurse call handset 3 is the same as that of the conventional nurse call, and thus the description thereof is omitted.

First, a method for transmitting a call signal for the nurse call wireless push button 2 will be described. In the configuration diagram of FIG. 1 and the block diagram of FIG. 2, when the movable button 21 of the nurse call wireless push button 2 is pressed, the power generation unit 22 generates electric power by the kinetic energy generated by the operation of the movable button 21 to generate electric energy. Conversion is performed, and power is supplied to the wireless transmission unit 23. In addition, since the technique itself which generates electric power with the kinetic energy of a movable part is an existing technique, description is abbreviate | omitted.
When receiving the supply of operation power, the wireless transmission unit 23 reads the unique code stored in advance in the nurse call wireless push button 2 and performs wireless transmission together with the calling signal. This radio signal is weak, and the reach is about 1 to 3 m. Further, since the power generation amount of the power generation unit 22 is weak, the operable time of the wireless transmission unit 23 by one operation of the movable button 21 is about 1 to 5 seconds, and the power supply from the power generation unit 22 is stopped. Then, the operation of the wireless transmission unit 23 is also stopped.

  Next, a pairing operation with the wireless receiver 4 at the start of use of the nurse call wireless push button 2 will be described with reference to FIG. The pairing operation is to register in advance which nurse call wireless push button 2 receives the call signal for the wireless receiver 4 so as to prevent a wrong call from occurring in different nurse call slaves. Registration operation.

  When the pairing start button 41 of the wireless receiver 4 is operated at the start of pairing, the receiver CPU 43 that has detected the operation of the pairing start button 41 blinks the indicator lamp 45 and visually confirms that it has shifted to the pairing mode. To be notified. When the wireless receiver 4 depresses the movable button 21 of the nurse call wireless push button 2 during the pairing operation, the wireless transmitter 23 wirelessly transmits the paging signal to which the unique code is added as described above. When the receiver CPU 43 of the wireless receiver 4 receives the call signal via the reception antenna 44, the receiver CPU 43 extracts the unique code from the received call signal, overwrites and stores it in the storage unit 42, and sends a pairing completion notification to the unique signal. Along with the code, it is transmitted to the control device 6 via the nurse call slave unit 3 and the corridor lamp 5, and the indicator lamp 45 is lit for a predetermined time to notify that the pairing is completed. When the control device 6 receives the pairing completion notification, the control device 6 confirms that the unique code in the pairing completion notification is not registered in another wireless receiver 4 and stores it in a storage unit (not shown) in the control device 6. . When the unique code is registered in another wireless receiver 4, an alarm sound or an alarm display is given from the control device 6 to the nurse call master unit 1, the corridor lamp 5 or the nurse call slave unit 3 as a registration abnormality signal. By doing so, it is possible to prevent one nurse call wireless push button 2 from being paired by a plurality of wireless receivers 4.

  Next, a case where pairing has failed and timed out will be described. When the pairing start button 41 of the wireless receiver 4 is operated, the receiver CPU 43 shifts to the pairing mode in the same manner as described above, but after that, when the paging signal cannot be received for 30 seconds, The indicator light 45 is turned off, the pairing mode is terminated, the unique code registered in the previous pairing is read from the storage unit 42, and the call signal from the nurse call radio push button 2 having the unique code is read. A pairing completion notification is transmitted to the control device 6 as received.

  In order to avoid the first pairing failure at the site, the wireless receiver 4 and the nurse call wireless push button 2 are shipped in pairs, and the pairing is completed at the factory shipment stage. Since the unique code of the nurse call wireless push button 2 is stored in advance, the unique code registered in the previous pairing can always be read when pairing fails.

Next, the calling operation will be described with reference to FIG. When the wireless receiver 4 in the standby state (that is, not in the pairing mode) receives the call signal from the nurse call wireless push button 2, the receiver CPU 43 extracts the unique code from the received call signal, and stores it in the storage unit. Compare with the unique code stored in 42. If the two unique codes are different, no operation is performed and the standby state is maintained. If the two unique codes are the same, the call signal is transmitted to the nurse call slave unit 3 and the hallway together with the unique code. While transmitting to the control apparatus 6 via the lamp 5, the indicator lamp 45 is lit to visually notify that the calling operation has been accepted. The control device 6 that has received the call signal transmits the call signal to the nurse call parent device 1 to sound a ringing tone and notify the call from the nurse call child device 3.
The nurse who recognizes the call notification from the nurse call master unit 1 establishes a call path with the call unit 32 of the nurse call slave unit 3 at the call unit (not shown) of the nurse call master unit 1 and ends the call. Later, the patient rushes to the patient in the hospital room and operates the recovery button 33 of the nurse call handset 3 to end the calling operation.

In this embodiment, one radio receiver is described as having one nurse call wireless push button. However, a plurality of nurse call wireless push buttons may be provided. it can. In this case, the storage unit stores a plurality of unique codes, and when pairing is successful, a new unique code is added to the storage unit, and when pairing fails, all unique codes stored in the storage unit are stored. To send a pairing completion notification to the control device.
In this embodiment, a control device and a corridor lamp are provided, but these do not exist. For example, the storage operation and duplication confirmation of the unique code performed by the control device are performed by other devices such as a nurse call master unit. It is also suitable.

  Further, although the call unit is provided in the nurse call slave unit, it is also preferable to provide it in the wireless receiver.

DESCRIPTION OF SYMBOLS 1 Nurse call main | base station 2 Radio | wireless push button 3 for nurse calls 3 Nurse call handset 31 Call grip button 32 Call part 4 Wireless receiver 41 Pairing start button 42 Memory | storage part 43 Receiver control part

Claims (1)

A nurse call system for notifying or displaying a call signal from a nurse call slave unit (3, 3,...) Installed in the vicinity of each bed in a hospital room on a nurse call master unit (1) installed in a nurse station. Because
A nurse call wireless push button (2) installed near the patient, such as on the bed, so that a patient who is hospitalized in the bed calls the nurse call parent device, and a call from the nurse call wireless push button. A radio receiver (4, 4, ...) connected to the nurse call slave unit for receiving a signal;
The nurse call cordless handset is called by the operation of the call grip button (31) for calling a nurse in the vicinity of the nurse call master phone and the call grip button or the wireless push button for the nurse call. A call unit (32) for making a call with the nurse when the nurse responds with the nurse call master unit;
The wireless receiver includes a pairing start button (41) for pairing with the nurse call wireless push button and an ID of the nurse call wireless push button within a predetermined time after the pairing start button is operated. A storage unit (42) for storing the unique code by receiving a unique code such as, and a receiver control unit (43) for controlling the operation of the wireless receiver,
The nurse call wireless push button does not have a power supply unit, and instead of the power supply unit, when the push button is pressed, the kinetic energy generated by the pressing is converted into electric energy and a wireless signal including the unique code is transmitted. After transmission of the wireless signal, it has a wireless transmission unit that stops operation until it obtains electrical energy by pressing again, and further has no wireless receiving unit to reduce the kinetic energy by pressing,
When the receiver control unit has not received the unique code within a certain time after the pairing start button operation, the unique code by the previous pairing is read from the storage unit and the pairing is completed. When a call for a unique code that is the same as the unique code stored in the storage unit is received when pairing is not performed, a call signal is transmitted to the nurse call master unit, and further when pairing is not performed A nurse call system that suppresses transmission of a call signal to the nurse call master unit when a call of a unique code different from the unique code stored in the storage unit is received.