JP5743507B2 - Respiratory status display device - Google Patents

Description

  The present invention relates to a respiratory status display device, and more particularly to a respiratory status display device for displaying information such as the remaining amount of inhaled gas such as air or oxygen compressed and filled in a pressure vessel.

  As for the respirator, there are a work respirator used for working in a place where harmful gas exists, and an evacuation respirator used for fire evacuation and the like. The working respirator has a high-pressure air container capable of accumulating a large volume of air so as to be able to work for a long time, and is large and heavy. The evacuation ventilator is small and light, and has a shorter usable time than the work ventilator.

  FIG. 7 is a perspective view showing an example of a respirator 100 according to the prior art. FIG. 8 is a diagram showing an appearance of a head up display (hereinafter referred to as “HUD”) 90 provided in the respiratory apparatus 100. The respirator 100 is an example of an evacuation respirator worn by fire fighters and the like.

  The respiratory apparatus 100 includes a cylinder 101 that is a pressure container, a face body 102 that is a mask, and a conversion unit 93 that includes an activation button and the like. The conversion unit 93 is provided with a pressure sensor 92 that is connected to the cylinder 101 and detects the pressure of the intake gas compressed and filled in the cylinder 101. The conversion unit 93 is connected to the display unit 94 by a connection cable 95. The conversion unit 93 acquires the pressure value of the pressure detected by the pressure sensor 92 and sends the acquired pressure value to the display unit 94. The display unit 94 displays the pressure value received from the conversion unit 93 as the remaining amount of intake gas compressed and filled in the cylinder 101.

  The respirator 100 transmits the pressure value of the inspiratory gas to the display unit 94 connected by the connection cable 95 to display the remaining amount, but the display unit 94 is provided at the hand of the member wearing the respirator 100. There is a problem that the connection cable 95 may interfere with the operation of the members.

  As a conventional technique for solving this problem, there is a respiratory apparatus described in Patent Document 1. In this respirator, the pressure of the intake gas compressed and filled in the pressure vessel is detected by a pressure sensor. The transmission processing circuit transmits information on the pressure including the detected pressure as pressure data. The reception processing circuit provided in the face body receives the pressure data transmitted from the transmission processing circuit, and selectively lights up the green and red color display light emitting elements corresponding to the pressure value represented by the received pressure data. In addition, the lighting cycle is changed corresponding to the pressure.

JP 2002-119606 A

  The display unit or the light-emitting element for color display is provided at the hand of a member wearing a respirator or a mask, and is viewed only by the member wearing the respirator. Therefore, in order to know the remaining amount of inspiratory gas in the respiratory system worn by each crew member, the captain communicated with each crew member by wireless communication, and each crew member confirmed with the display unit or the color display light emitting element. It is necessary to report the remaining amount to the captain. This can be a heavy burden for firefighters and can interfere with firefighting activities.

  An object of the present invention is to provide a respirator status display device capable of concentrating and displaying the remaining amount of inspiratory gas in each respirator without using a connection cable or the like.

The present invention
A transmitter provided in each respirator for mounting on a human body, having a pressure sensor for detecting the pressure of inhaled gas compressed and filled in the pressure vessel of the respirator, and a pressure value detected by the pressure sensor A transmission unit that transmits the radio by radio communication,
Respirator state including a first display unit that receives a pressure value transmitted from a transmission unit provided in each respirator and displays the remaining amount of inspiratory gas for each respirator based on the received pressure value In the display device,
Measuring means for measuring the radio field intensity of the radio wave transmitted from the transmission unit of each respiratory unit;
A calculating means for calculating the distance to each respiratory organ based on the measured radio field intensity;
Distance display means for displaying the calculated distance on the first display unit,
The first display unit switches and displays the remaining amount of the inspiratory gas and the distance to the respirator ,
The first display unit includes a vibration detector that detects vibration, a lighting unit, and a power supply unit,
When the vibration detector detects vibration, it supplies power from the power supply unit to the lighting unit for a predetermined time, and displays the remaining amount of inspiratory gas by lighting the lighting unit. It is a status display device.

  In the second aspect of the present invention, the second respiratory unit is provided in each respiratory unit, receives a pressure value transmitted from the transmission unit provided in the same respiratory unit, and displays a remaining amount of inspiratory gas based on the received pressure value. It further includes a display unit.

  The invention further includes a relay unit that receives a pressure value transmitted from the transmission unit provided in each respiratory organ and transmits the received pressure value.

In the present invention, the transmitter is assigned identification information for identifying each transmitter, and when transmitting the pressure value, transmits the pressure value together with the identification information assigned to the own transmitter,
The first display unit receives identification information together with a pressure value, and identifies a respiratory apparatus provided with a transmission unit to which the received identification information is assigned.

In the present invention, the first display unit includes a vibration detector for detecting vibration, a lighting unit, and a power supply unit.
When the vibration detector detects vibration, it supplies the power from the power supply unit to the lighting unit for a predetermined time, and lights the lighting unit to display the remaining amount of intake gas.

According to the present invention, the transmitter has a pressure sensor that is provided in each respirator to be worn on the human body and detects the pressure of the inhaled gas compressed and filled in the pressure vessel of the respirator. The detected pressure value is transmitted by wireless communication. And a 1st display part receives the pressure value transmitted from the transmission part provided in each respiratory organ, and displays the residual amount of inhalation gas for every respiratory organ based on the received pressure value. Therefore, the transmission unit can concentrate and display the remaining amount of the inspiratory gas of each respiratory device on the first display unit at a remote location without using a connection cable or the like. Further, the respiratory status display device according to the present invention calculates the distance from each respiratory device worn by a person by the calculation means based on the radio wave intensity measured by the measurement means, and the calculated distance is displayed by the distance display means. Since it can be displayed, it can be used as a device for searching for the location of a person when the person is missing.
According to the invention, the first display unit includes a vibration detector that detects vibration, a lighting unit, and a power supply unit. When the vibration detector detects vibration, it supplies power from the power supply unit to the lighting unit for a predetermined time, and lights the lighting unit to display the remaining amount of intake gas. Therefore, since it is possible to turn on the power only when it is necessary to check the remaining amount, it is possible to suppress the consumption of the capacity of the power.

  According to the invention, the second display unit is provided in each respirator, receives a pressure value transmitted from the transmission unit provided in the same respirator, and based on the received pressure value, inspiratory gas The remaining amount of is displayed. Therefore, the same remaining amount as the remaining amount displayed on the first display unit can be displayed on the second display unit mounted on the respiratory apparatus worn by the member.

  According to the invention, the relay unit receives the pressure value transmitted from the transmission unit provided in each respiratory organ and transmits the received pressure value, so that the first display unit communicates with the communication range of the transmission unit. Even in the range exceeding the pressure value, the pressure value can be transmitted to the first display unit.

  According to the present invention, the transmission unit is assigned identification information for identifying each transmission unit, and when transmitting the pressure value, transmits the pressure value together with the identification information allocated to the own transmission unit, The first display unit receives identification information together with a pressure value, and identifies a respiratory apparatus provided with a transmission unit to which the received identification information is assigned. Therefore, the remaining amount for each respiratory organ can be displayed for each respiratory organ.

1 is an external view of a respiratory status display device 1 according to an embodiment of the present invention. It is a block diagram which shows the structure of the state display apparatus 1 of a respiratory organ. 4 is a diagram illustrating an example of a display lamp provided in an operation display unit 43. FIG. 6 is a diagram showing an example of a display lamp provided in a monitor display unit 53. FIG. It is a figure which shows the format of the communication data. It is a block diagram which shows the structure of the status display apparatus 9 which is other embodiment of this invention. It is a perspective view which shows an example of the respirator 100 by a prior art. It is a figure which shows the external appearance of HUD90 with which the respirator 100 is equipped.

  FIG. 1 is an external view of a respiratory status display device 1 according to an embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of the respiratory status display device 1. The respiratory status display device 1 includes at least one head up display (hereinafter referred to as “HUD”) 2 and one centralized monitor 5. FIG. 1A is an external view of the HUD 2, and FIG. 1B is an external view of the centralized monitor 5. Hereinafter, the “respiratory status display device” is simply referred to as a “status display device”.

  Fire fighting activities are usually carried out by a group of several members and one captain. The HUD 2 is installed in a respirator to be worn by a human body, for example, a member, for example, the respirator 100 shown in FIG. 7, and one HUD 2 is mounted on one respirator 100. The captain monitor is carried by the captain. Although only one HUD 2 is shown in the status display device 1 shown in FIG. 2, if the number of members is the same, for example, if the number of members is five, then five HUDs 2 are configured.

  The HUD 2 includes a converter 3 and a display unit 4. The converter 3 as a transmission unit includes a conversion control unit 31, a conversion communication unit 32, and a pressure sensor 33. The conversion control unit 31 includes a central processing unit (hereinafter referred to as “CPU”) (not shown) and a storage device (not shown). The storage device is composed of, for example, a semiconductor memory, and stores a program executed by the CPU and information necessary when the CPU executes the program. The conversion control unit 31 controls the conversion communication unit 32 by executing a program stored in the storage device.

  The conversion communication unit 32 is a communication device that transmits and receives information to and from the display unit 4 and the centralized monitor 5 by wireless communication. Wireless communication is, for example, communication using radio waves in the 2,4 GHz band. The conversion communication unit 32 is configured by, for example, a TY24FM wireless module manufactured by NEC. The conversion communication unit 32 transmits information received from the conversion control unit 31 and sends the received information to the conversion control unit 31.

  The pressure sensor 33 is connected to a respirator, for example, a cylinder that is a pressure container of the respirator 100 shown in FIG. 7, after the opening / closing valve of the outlet, and detects the pressure value of the pressure of the intake gas in the pressure container, The detected pressure value is sent to the conversion control unit 31.

  The conversion control unit 31 acquires the pressure value of the pressure of the intake gas in the pressure vessel detected by the pressure sensor 33 from the pressure sensor 33 at a predetermined time interval, for example, a time interval of 10 seconds, and the acquired pressure value Is transmitted by the conversion communication unit 32.

  The display unit 4 as the second display unit includes an operation control unit 41, an operation communication unit 42, and an operation display unit 43. Similar to the conversion control unit 31, the operation control unit 41 includes a CPU (not shown) and a storage device (not shown). The operation control unit 41 controls the operation communication unit 42 and the operation display unit 43 by executing a program stored in a storage device included in the operation control unit 41.

  Similar to the conversion communication unit 32, the operation communication unit 42 is configured by, for example, a TY24FM wireless module manufactured by NEC, and transmits and receives information to and from the conversion communication unit 32 using radio waves in the 2,4 GHz band. The operation communication unit 42 transmits information received from the operation control unit 41 and sends the received information to the operation control unit 41.

  FIG. 3 is a diagram illustrating an example of a display lamp provided in the operation display unit 43. The operation display unit 43 includes five display lamps 431 to 435. The display lamps 431 to 435 are constituted by light emitting diodes, for example. The display lamps 431 and 432 are green display lamps, the display lamp 433 is a yellow display lamp, and the display lamps 434 and 435 are red display lamps.

  The operation communication unit 42 receives the pressure value transmitted by the conversion communication unit 32 and sends the received pressure value to the operation control unit 41. The operation control unit 41 displays the remaining amount of intake gas on the operation display unit 43 based on the pressure value received from the operation communication unit 42. Specifically, for example, when the pressure value received by the operation communication unit 42 is 30 MPa or more, the operation control unit 41 controls the display lamp 431 to be turned on and the other display lamps to be turned off. When the pressure value received by the operation communication unit 42 is less than 30 MPa and 21 MPa or more, the display lamp 432 is turned on and the other display lamps are turned off. When the pressure value received by the operation communication unit 42 is less than 21 MPa and 14 MPa or more, the display lamp 433 is turned on and the other display lamps are turned off. When the pressure value received by the operation communication unit 42 is less than 14 MPa and 7.5 MPa or more, the display lamp 434 is turned on, and the other display lamps are turned off. When the pressure value received by the operation communication unit 42 is less than 7.5 MPa, the display lamp 435 is turned on, and the other display lamps are turned off.

  As the display lamps 431 to 435, display lamps that are turned on according to the pressure value of the intake gas are determined. Since there is a correlation between the pressure value of the intake gas and the remaining amount of intake gas, the remaining amount of intake gas is displayed by a lamp that is lit.

  The concentration monitor 5 as the first display unit is a device that concentrates and displays the remaining amount of the inspiratory gas filled in the pressure vessel of the respiratory apparatus 100 worn by each member. Since the centralized monitor 5 is used in fire fighting activities, it is waterproof so that it can operate even when it is splashed with water. For example, the electrical contact is covered with a waterproof material such as an insulating resin.

  The centralized monitor 5 includes a monitor control unit 51, a monitor communication unit 52, a monitor display unit 53, a vibration sensor 54, and a battery (not shown). Similarly to the conversion control unit 31, the monitor control unit 51 includes a CPU (not shown) and a storage device (not shown). The monitor control unit 51 controls the monitor communication unit 52 and the monitor display unit 53 by executing a program stored in a storage device included in the monitor control unit 51. The battery (not shown) of the monitor communication unit 52 is a power supply unit.

  Similarly to the conversion communication unit 32, the monitor communication unit 52 is configured by, for example, a TY24FM wireless module manufactured by NEC Corporation, and transmits and receives information to and from the conversion communication unit 32 using radio waves in the 2,4 GHz band. The monitor communication unit 52 transmits information received from the monitor control unit 51 and sends the received information to the monitor control unit 51.

  FIG. 4 is a diagram illustrating an example of a display lamp provided in the monitor display unit 53. The monitor display unit 53 is provided with, for example, 27 display lamps, and numbers “1” to “5” are described. The numbers “1” to “5” represent the numbers of respiratory devices worn by the members. A set of display lamp groups 532 including five display lamps is provided for each number, that is, for each respiratory organ. Each group of display lamp groups 532 is a lighting part.

  The five display lamps included in each group of display lamp groups 532 are display lamps corresponding to the display lamps 431 to 435 shown in FIG. 3, and the intake gas is similar to the display lamps 431 to 435 shown in FIG. The remaining amount of is displayed. The lighting state corresponding to the remaining amount is the same lighting state as the lighting states of the display lamps 431 to 435 shown in FIG. That is, among the lighting states of the display lamps 431 to 435 of the display unit 4 mounted on the respiratory apparatus worn by each member and the numbers written on the centralized monitor 5, the display lamp group 532 of the respiratory number is included. The five display lamps turned on are the same.

  The display lamp 533 is configured by a yellow light emitting diode. When the display lamp 533 is lit, it indicates that the remaining battery level (not shown) is low. The display lamp 533 is configured by a green light emitting diode. The display lamp 533 indicates that the central monitor 5 is powered on.

  The monitor communication unit 52 receives the pressure value transmitted by the conversion communication unit 32 and sends the received pressure value to the monitor control unit 51. Based on the pressure value received from the monitor communication unit 52, the monitor control unit 51 displays the remaining amount of intake gas on the monitor display unit 53 for each respiratory organ, that is, for each member. Respirator identification will be described later.

  The vibration sensor 54 is constituted by, for example, a vibration sensor that detects vibration, and detects vibration of the centralized monitor 5. When the vibration sensor 54 detects the vibration of the centralized monitor 5, the battery power (not shown) is supplied to the monitor control unit 51, the monitor communication unit 52, and the monitor display unit 53 for a predetermined time, for example, one minute. That is, the power is turned on. When a predetermined time elapses after the vibration disappears, the vibration sensor 54 stops supplying power to the monitor control unit 51, the monitor communication unit 52, and the monitor display unit 53, that is, a state where the power supply is cut off. To do. The vibration sensor 54 is always supplied with battery power (not shown). The vibration sensor 54 includes a timer for counting a predetermined time.

  Therefore, the captain automatically turns on the power of the central monitor 5 by giving vibration to the central monitor 5 by, for example, lifting the central monitor 5 away from the place where the members are performing fire fighting activities. The remaining amount of the intake gas compressed and filled in the pressure vessel of the respiratory apparatus worn by each member can be determined by the lighting state of the display lamp provided in the centralized monitor 5.

  FIG. 5 is a diagram showing the format of the communication data 60. The communication data 60 includes transmission source identification information (Identification; hereinafter referred to as “ID”) 61, a transmission destination ID 62, and transmission information 63.

  In order to identify which of the plurality of converters 3, the plurality of display units 4, and one centralized monitor 5, each converter 3, each display unit 4, and centralized monitor 5 has an ID that is identification information. Are pre-assigned. The storage device of each conversion control unit 31, the storage device of each operation control unit 41, and the storage device of the monitor control unit 51 store the ID assigned to each converter 3, each display unit 4, and centralized monitor 5. To do. The ID assigned to each converter 3 is respiratory identification information.

  The conversion control unit 31, the operation control unit 41, and the monitor control unit 51 use the communication data 60 as the transmission source ID 61, the transmission destination ID 62 as the transmission destination ID 62, the transmission information 63 as the transmission information 63. Is generated. The own device and the destination device are any of the converter 3, the display unit 4, and the centralized monitor 5.

  For example, the ID assigned to the converter 3 of the status display device 1 installed in a respiratory device worn by a certain member A is “0011”, and the status display device 1 installed in the respiratory device worn by the same member A It is assumed that the ID assigned to the display unit 4 is “0012” and the ID assigned to the centralized monitor 5 is “0050”. At this time, the conversion control unit 31 generates when the conversion control unit 31 of the state display device 1 equipped in the respiratory apparatus worn by the member A transmits a pressure value to the operation control unit 41 of the same state display device 1. In the communication data 60, the transmission source ID 61 is “0011”, the transmission destination ID 62 is “0012”, and the transmission information 63 is a pressure value. In addition, when the conversion control unit 31 of the state display device 1 equipped in the respiratory apparatus worn by the member A transmits a pressure value to the centralized monitor 5, the communication data 60 generated by the conversion control unit 31 is a transmission source ID 61. Is “0011”, the transmission destination ID 62 is “0050”, and the transmission information 63 is a pressure value.

  In this way, since the communication data 60 includes the transmission source ID 61 and the transmission destination ID 62, any device can identify which information is transmitted from which device to which device. Therefore, the transmission-side apparatus can specify the transmission destination and transmit the communication data 60, and the reception-side apparatus can receive only the communication data 60 addressed to itself.

  Further, the monitor control unit 51 uses the transmission source ID 61 included in the communication data 60 to determine from which transducer 3 the pressure value included in the communication data 60 is the pressure value of which respirator. Can be associated with the number displayed on the monitor display unit 53, and the remaining amount of the inspiratory gas based on the pressure value can be displayed for each respirator.

  The converter 3 further includes a pressure switch (not shown) and a battery (not shown). The pressure switch supplies power from a battery (not shown) included in the converter 3 to the conversion control unit 31 and the conversion communication unit 32 when the pressure detected by the pressure sensor 33 reaches a predetermined pressure, for example, 10 MPa or more. Switch.

  Display unit 4 further includes a battery (not shown). Electric power from a battery (not shown) is constantly supplied to the operation control unit 41 and the operation communication unit 42. The operation communication unit 42 receives a power-on instruction from the converter 3 and transmits the received power-on instruction to the operation control unit 41. When the operation control unit 41 recognizes the power-on instruction, the operation control unit 41 starts power supply from the battery (not shown) to the operation display unit 43.

  FIG. 6 is a block diagram showing a configuration of a status display device 9 which is another embodiment of the present invention. The status display device 9 has a configuration in which a repeater 7 is added to the status display device 1. The constituent elements excluding the repeater 7 are the same as the constituent elements of the state display device 1 shown in FIG. 2, and in order to avoid duplication, the same reference numerals are given and description thereof is omitted. The repeater 7 is installed in a building or the like in advance.

  The repeater 7 as a relay unit includes a reception side communication unit 71 and a transmission side communication unit 72. Similarly to the conversion communication unit 32, the reception-side communication unit 71 and the transmission-side communication unit 72 are configured by, for example, a TY24FM wireless module manufactured by NEC Corporation, and transmit and receive information using radio waves in the 2,4 GHz band. The reception side communication unit 71 receives the communication data 60 to be transmitted regardless of the transmission source, and sends the received communication data 60 to the transmission side communication unit 72. The transmission side communication unit 72 transmits the communication data 60 received from the reception side communication unit 71.

  The communication distance by the conversion communication part 32, the operation communication part 42, and the monitor communication part 52 is 20m-30m, and if it becomes the distance beyond it, transmission / reception of the communication data 60 cannot be performed. The communication distance of the repeater 7 is also the same distance, but the communication distance can be doubled through one repeater 7. Similarly, the communication distance can be tripled through the two repeaters 7.

  In the repeater 7 described above, the communication data 60 is relayed regardless of the transmission source. However, when relaying only to the centralized monitor 5, either the transmission source ID 61 or the transmission destination ID 62 of the communication data 60 is used. It is sufficient to relay only when the ID assigned to the centralized monitor 5 is included.

  In the above-described embodiment, the converter 3 acquires the pressure value of the intake gas from the respirator, and transmits the acquired pressure value to the display unit 4 and the concentration monitor 5 to display the remaining amount of the intake gas. The information to be displayed is not limited to the remaining amount of intake gas. Any information that can be acquired from the respiratory device by the converter 3 can be transmitted to the display unit 4 and the centralized monitor 5 for display. For example, information such as the body temperature of the member, the pulse of the member, and the output of a vibration sensor for detecting whether the member is operating may be transmitted to the display unit 4 and the centralized monitor 5 for display.

  In the above-described embodiment, information is transmitted from the converter 3 to the display unit 4 and the centralized monitor 5 and displayed. However, the information is transmitted from the centralized monitor 5 to the display unit 4 and displayed. Is also possible.

  Conventionally, the check of the remaining amount of the inhaled gas compressed and filled in the pressure vessel of the respirator has been individually checked using an individual meter for measuring the remaining amount. It is possible to check a plurality of respirators simultaneously without using a separate meter for measuring the remaining amount.

  Further, the central monitor 5 may be provided with measuring means for measuring the radio wave intensity, and the distance to each member may be calculated. In general, since the radio wave intensity decreases depending on the distance, the radio wave intensity from the converter 3 of the respiratory device 100 attached to each member is measured by the measuring means, and each converter 3, based on the measured radio wave intensity, That is, the distance to each member can be calculated.

  For example, the centralized monitor 5 displays the calculated distance depending on which display lamp in the display lamp group 532 illustrated in FIG. 4 is turned on. Specifically, the centralized monitor 5 turns on the green display lamp at the left end when the calculated distance is 30 m or more, and turns on the second green light from the left end when the calculated distance is less than 30 m and 20 m or more. When the calculated distance is less than 20m and 10m or more, the middle yellow display lamp is lit. When the calculated distance is less than 10m, the second red display lamp from the right end is lit. To do. The display lamp may be switched by providing a switching switch for switching whether to display the remaining amount of intake gas or the distance on the centralized monitor 5, or a dedicated display lamp for displaying the distance is provided. May be.

  In this way, the status display device 1 is a device for searching for whereabouts of a member when the member is missing by measuring the radio wave intensity and displaying the distance to the member on the display lamp. Can be used.

  Thus, the converter 3 is provided in each respirator to be attached to the human body, and includes the pressure sensor 33 that detects the pressure of the inhaled gas compressed and filled in the pressure vessel of the respirator. The pressure value detected by is transmitted by wireless communication. The centralized monitor 5 receives the pressure value transmitted from the converter 3 provided in each respirator, and displays the remaining amount of inspiratory gas for each respirator based on the received pressure value. Therefore, the converter 3 can concentrate and display the remaining amount of the inspiratory gas of each respiratory device on the centralized monitor 5 at a remote location without using a connection cable or the like.

  Further, the display unit 4 is provided in each respiratory device, receives the pressure value transmitted from the converter 3 provided in the same respiratory device, and displays the remaining amount of inspiratory gas based on the received pressure value. Accordingly, the same remaining amount as the remaining amount displayed on the centralized monitor 5 can be displayed on the display unit 4 equipped on the respiratory apparatus worn by the member.

  Furthermore, since the repeater 7 receives the pressure value transmitted from the converter 3 provided in each respirator and transmits the received pressure value, the centralized monitor 5 is in a range exceeding the communication range of the converter 3. Even in this case, the pressure value can be transmitted to the centralized monitor 5.

  Furthermore, when the transducer 3 is assigned identification information for identifying each transducer 3 and transmits the pressure value, the transducer 3 transmits the pressure value together with the identification information allocated to the own transducer 3, and the centralized monitor 5 Receives the identification information together with the pressure value and identifies the respirator provided with the transducer 3 to which the received identification information is assigned. Therefore, the remaining amount for each respiratory organ can be displayed for each respiratory organ.

  Further, the centralized monitor 5 includes a vibration sensor 54 that detects vibration, a group of display lamps 532, and a battery (not shown). When the vibration detector 54 detects vibration, it supplies power from a battery (not shown) to each group of display lamp groups 532 for a predetermined period of time, and turns on each group of display lamp groups 532, thereby taking in the intake gas. The remaining amount of is displayed. Therefore, since the power can be turned on only when the remaining amount needs to be confirmed, it is possible to suppress the consumption of the battery capacity (not shown).

1,9 Status display device 2,90 HUD
3, 93 Conversion unit 4, 94 Display unit 5 Centralized monitoring unit 7 Repeater 31 Conversion control unit 32 Conversion communication unit 33, 92 Pressure sensor 41 Operation control unit 42 Operation communication unit 43 Operation display unit 51 Monitor control unit 52 Monitor communication unit 53 Monitor display section 54 Vibration sensor 55 Battery 95 Connection cable 100 Respirator 101 Cylinder 102 Face body

Claims (4)

A transmitter provided in each respirator for mounting on a human body, having a pressure sensor for detecting the pressure of inhaled gas compressed and filled in the pressure vessel of the respirator, and a pressure value detected by the pressure sensor A transmission unit that transmits the radio by radio communication,
Respirator state including a first display unit that receives a pressure value transmitted from a transmission unit provided in each respirator and displays the remaining amount of inspiratory gas for each respirator based on the received pressure value In the display device,
Measuring means for measuring the radio field intensity of the radio wave transmitted from the transmission unit of each respiratory unit;
A calculating means for calculating the distance to each respiratory organ based on the measured radio field intensity;
Distance display means for displaying the calculated distance on the first display unit,
The first display unit switches and displays the remaining amount of the inspiratory gas and the distance to the respirator ,
The first display unit includes a vibration detector that detects vibration, a lighting unit, and a power supply unit,
When the vibration detector detects vibration, it supplies power from the power supply unit to the lighting unit for a predetermined time, and displays the remaining amount of inspiratory gas by lighting the lighting unit. Status display device.   A second display unit provided in each respirator, receiving a pressure value transmitted from the transmission unit provided in the same respirator, and displaying a remaining amount of inspiratory gas based on the received pressure value; The respiratory status display device according to claim 1.   The respiratory state display device according to claim 1, further comprising a relay unit that receives a pressure value transmitted from the transmission unit provided in each respiratory unit and transmits the received pressure value. . The transmitter is assigned identification information for identifying each transmitter, and when transmitting the pressure value, transmits the pressure value together with the identification information assigned to the own transmitter,
The first display unit receives identification information together with a pressure value, and identifies a respirator provided with a transmission unit to which the received identification information is assigned. The respiratory status display device according to one of the above.

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