JP6991936B2 - Management system - Google Patents

Description

The present invention relates to a management system that manages the occupants of a ship.

Japanese Patent Application Laid-Open No. 2010-236866 (Patent Document 1) describes a wireless LAN (Local Area Network) terminal device carried by an onboard occupant and a repeater for receiving a wireless frame transmitted from the wireless LAN terminal device. , A terminal position detection system including a position calculation device is disclosed. The position calculation device acquires reception status information regarding the reception status of the wireless frame from the repeater, and estimates the position of the occupant carrying the wireless LAN terminal device by calculation based on the acquired reception status information. As a result, the position of the occupants in the ship is managed.

Japanese Unexamined Patent Publication No. 2010-236866

The radio wave strength of the wireless frame transmitted from the wireless LAN terminal device is generally strong. Even if each room in the ship is partitioned by a steel plate that reflects the radio waves of the radio frame, the radio waves are transmitted through pipes arranged across multiple rooms. Therefore, wireless frames transmitted from a plurality of wireless LAN terminal devices are likely to interfere with each other. As a result, the position calculation device cannot accurately estimate the position of the occupant carrying each of the plurality of wireless LAN terminal devices.

The present disclosure has been made to solve the above problems, and an object of the present disclosure is to provide a management system capable of accurately managing the whereabouts of occupants in a ship.

The management system for managing the occupants in the ship according to the present disclosure includes a terminal device and a plurality of first receivers. The terminal device is attached to the occupant and transmits an advertisement packet according to the Bluetooth® Low Energy standard. The plurality of receivers are installed at a plurality of different positions in the ship to receive advertisement packets. The terminal device includes a biosensor that outputs biometric information of the occupant. The terminal device includes the biometric information output from the biometric sensor in the advertisement packet. The management system acquires biometric information contained in the advertisement packet received by any of the plurality of first receivers, and is based on the position of the first receiver among the plurality of first receivers that received the advertisement packet. , Further equipped with a management device for estimating the whereabouts of occupants.

According to the present disclosure, the position of the occupant in the ship can be controlled with high accuracy.

It is a figure which shows typically the ship to which the management system which concerns on Embodiment 1 is applied. It is a figure which shows the structure of the management system which concerns on Embodiment 1. FIG. It is a figure which shows the structure of the terminal apparatus which concerns on Embodiment 1. FIG. It is a block diagram which shows the hardware composition of a management device. It is a block diagram which shows an example of the functional structure of the management apparatus which concerns on Embodiment 1. FIG. It is a figure which shows an example of the management table managed by a management device. It is a figure which shows an example of the partition table managed by a management device. It is a flowchart which shows the flow of the update process of the management table and the partition table in the management device. It is a flowchart which shows the flow of the warning processing that the whereabouts of an occupant is unknown. It is a flowchart which shows the flow of the reception notification processing of the advertisement packet by a portable receiver. It is a flowchart which shows the flow of the fire extinguishing process of a fire extinguishing apparatus. It is a figure which shows an example of the terminal apparatus provided in the management system which concerns on Embodiment 2. FIG. It is a flowchart which shows the flow of abnormality notification processing which concerns on Embodiment 2. It is a figure which shows an example of the terminal apparatus provided in the management system which concerns on Embodiment 3. FIG. It is a figure which shows an example of the terminal apparatus provided in the management system which concerns on Embodiment 4. FIG. It is a figure which shows the structure of the management system which concerns on Embodiment 5. It is a figure which shows the structure of the terminal apparatus which concerns on Embodiment 5. It is a figure which shows the functional structure of the management apparatus which concerns on Embodiment 5.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. In principle, the same or corresponding parts in the following figures are designated by the same reference numerals and the explanations will not be repeated. In addition, each embodiment and each modification described below may be selectively combined as appropriate.

[Embodiment 1]
<Overall configuration of management system>
FIG. 1 is a diagram schematically showing a ship to which the management system according to the first embodiment is applied. As shown in FIG. 1, the space inside the ship 200 is divided into a plurality of sections 202 (sections 202-1, 202-2, ...) By a wall 201 or the like. In the following, unless particular distinction is made between compartments 202-1, 202-2, ..., Each of compartments 202-1, 202-2, ... Is referred to as "compartment 202". A section 202 communicates with an adjacent section 202 via a door, hatch, or the like.

FIG. 2 is a diagram showing a configuration of a management system according to the first embodiment. As shown in FIG. 2, the management system 1 according to the first embodiment includes a terminal device 10, a plurality of fixed receivers 20 (fixed receivers 20-1, 20-2, ...), And a plurality of fixed receivers 20 (fixed receivers 20-1, 20-2, ...). It includes a portable receiver 25, a management device 30, a plurality of fire extinguishing devices 40 (fire extinguishing devices 40-1, 40-2, ...), And a communication cable 50.

The terminal device 10 is attached to the occupant 100. The terminal device 10 wirelessly transmits an advertisement packet (also referred to as an advertising packet) in the Bluetooth (registered trademark) Low Energy (BLE) standard by radio waves 300. As will be described later, the terminal device 10 includes a biosensor that detects the biometric information of the occupant 100, and includes the biometric information detected by the biometric sensor in the advertisement packet.

The fixed receivers 20-1, 20-2, ... Are arranged in each of the compartments 202-1, 202-2, .... A receiver ID is assigned to each of the fixed receivers 20-1, 20-2, .... In the following, unless the fixed receivers 20-1, 20-2, ... Are particularly distinguished, each of the fixed receivers 20-1, 20-2, ... Is referred to as "fixed receiver 20". ..

The portable receiver 25 is provided in the ship 200 (see FIG. 1) so as to be portable. A receiver ID is also assigned to the portable receiver 25 in advance.

The fixed receiver 20 and the portable receiver 25 can receive the advertisement packet transmitted from the terminal device 10. When the fixed receiver 20 and the portable receiver 25 receive the advertisement packet, the fixed receiver 20 and the portable receiver 25 manage by adding the reception strength information indicating the reception strength of the advertisement packet, the reception time information indicating the reception time, and the receiver ID to the advertisement packet. Output to device 30.

The management device 30 manages the occupant 100 based on the advertisement packet, the reception strength information, the reception time information, and the receiver ID received from the fixed receiver 20 or the portable receiver 25. Specifically, the management device 30 acquires the biometric information of the occupant 100, estimates the position of the occupant 100, and manages the biometric information and the position.

The fire extinguishing devices 40-1, 40-2, ... Are arranged in each of the sections 202-1, 202-2, .... In the following, when the fire extinguishing devices 40-1, 40-2, ... Are not particularly distinguished, each of the fire extinguishing devices 40-1, 40-2, ... Is referred to as "fire extinguishing device 40". When the fire extinguishing device 40 detects that a fire has occurred in the installed section 202, the fire extinguishing device 40 sprays the fire extinguishing agent.

The communication cable 50 connects the fixed receiver 20, the portable receiver 25, the management device 30, and the fire extinguishing device 40 in a communicable manner.

<Configuration of terminal device>
FIG. 3 is a diagram showing a configuration of a terminal device according to the first embodiment. The terminal device 10 of the example shown in FIG. 3 is a wristwatch type. However, the shape of the terminal device 10 is not limited to the wristwatch type. For example, the terminal device 10 may be a type embedded in a part of clothes or a type attached to the skin.

As shown in FIG. 3, the terminal device 10 includes a biosensor 11 and a communication unit 12. The biological sensor 11 outputs biological information (for example, pulse, heart rate, body temperature, etc.) of the occupant 100 to which the terminal device 10 is attached. The biological sensor 11 may measure values such as pulse, heart rate, and body temperature and output the measured values as biological information, evaluate the state of the occupant 100 based on the measured values, and output the evaluation result to the biological body. It may be output as information.

The communication unit 12 generates a BLE standard advertisement packet, and wirelessly transmits the generated advertisement packet at a predetermined cycle. The predetermined period is defined by the BLE standard, and is an integral multiple of 0.625 ms in the range of 20 ms to 10.24 s. The communication unit 12 transmits an advertisement packet about every 1s, for example. The communication unit 12 transmits the advertisement packet with a predetermined transmission strength (transmission power). The transmission strength is determined according to the arrangement situation of the fixed receiver 20, and is weaker than the maximum strength.

The advertisement packet includes a terminal ID that identifies the terminal device 10. In addition, the advertisement packet includes an information element "Manufacturer Specific Data" that can be used by the supplier of the BLE device by defining a unique format. The communication unit 12 includes the latest biometric information output from the biosensor 11 in the Manufacturer Specific Data. The data length of Manufacturer Specific Data is predetermined. Therefore, the biosensor 11 outputs biometric information that fits in the data length of the Manufacturer Specific Data.

<Hardware configuration of management device>
FIG. 4 is a block diagram showing a hardware configuration of the management device. As shown in FIG. 4, the management device 30 includes a CPU (Central Processing Unit) 301, a ROM (Read Only Memory) 302, a RAM (Random Access Memory) 303, a network interface 304, a display 305, and storage. Includes device 306.

The CPU 301 controls the processing of the management device 30 by executing various programs such as the management program 310 for managing the occupant 100 (see FIG. 2). The CPU 301 reads the management program 310 from the storage device 306 into the RAM 303 based on the reception of the execution instruction of the management program 310. The RAM 303 functions as a working memory and temporarily stores various data necessary for executing the management program 310.

A communication cable 50 (see FIG. 2) is connected to the network interface 304. The network interface 304 transmits / receives data to / from the fixed receiver 20, the portable receiver 25, and the fire extinguishing device 40 via the communication cable 50.

The display 305 is composed of, for example, a liquid crystal display. The storage device 306 is, for example, a storage device such as a hard disk and an SSD (Solid State Drive). The storage device 306 may be built in the management device 30 or externally attached to the management device 30. The management program 310 is stored in the storage device 306, but the storage location of the management program 310 is not limited to the storage device 306, but is limited to the storage area of the management device 30 (for example, a cache), the ROM 302, the RAM 303, and an external communication device. It may be stored in (for example, a server).

The management program 310 does not exist as a single program, but may be embedded in a part of any program. Further, some or all of the functions provided by the management program 310 may be realized by dedicated hardware.

<Functional configuration of management device>
The functional configuration of the management device will be described with reference to FIGS. 5 to 7. FIG. 5 is a block diagram showing an example of the functional configuration of the management device according to the first embodiment. FIG. 6 is a diagram showing an example of a management table managed by the management device. FIG. 7 is a diagram showing an example of a partition table managed by the management device.

As shown in FIG. 5, the management device 30 includes a table storage unit 31, an analysis unit 32, a first update unit 33, a notification unit 34, and a second update unit 35. The table storage unit 31 is configured by the storage device 306 shown in FIG. The analysis unit 32, the first update unit 33, the notification unit 34, and the second update unit 35 are realized by the CPU 301 shown in FIG. 4 executing the management program 310.

The table storage unit 31 stores the management table 311 as shown in FIG. 6 and the partition table 312 as shown in FIG. 7.

For each occupant 100, the table storage unit 31 displays the occupant ID that identifies the occupant 100, the terminal ID of the terminal device 10 attached to the occupant 100, the biological information of the occupant 100, and the location of the occupant 100. The management table 311 in which the indicated location information, the latest reception time of the advertisement packet from the terminal device 10 mounted on the occupant 100, and the unknown flag are associated with each other is stored. The location information is indicated by a section ID that identifies the section 202 in which the occupant 100 is located.

Further, for each section 202, the table storage unit 31 provides a section table 312 in which the section ID for identifying the section 202 and the section information indicating whether the section 202 is a manned section or an unmanned section are associated with each other. Remember.

When the analysis unit 32 receives the advertisement packet from either the fixed receiver 20 or the portable receiver 25, the analysis unit 32 analyzes the advertisement packet and acquires the terminal ID and the biometric information. The terminal ID acquired by the analysis unit 32 identifies the terminal device 10 that has transmitted the advertisement packet. The biometric information acquired by the analysis unit 32 is the biometric information of the occupant 100 who wears the terminal device 10 that has transmitted the advertisement packet.

The management device 30 may receive the same advertisement packet from a plurality of fixed receivers 20 at substantially the same time. This is because, depending on the position of the terminal device 10, the plurality of fixed receivers 20 receive the radio wave 300 (see FIG. 2) transmitted from the terminal device 10.

The analysis unit 32 determines whether or not a plurality of fixed receivers 20 receive the same advertisement packet at the same time based on the reception time information and receiver ID added to the advertisement packet and the terminal ID acquired from the advertisement packet. Judge.

When only one fixed receiver 20 receives the advertisement packet, the analysis unit 32 receives the terminal ID and biometric information acquired from the advertisement packet, and the receiver ID and reception time information added to the advertisement packet. Is output to the first update unit 33.

When at least two fixed receivers 20 receive the same advertisement packet, the analysis unit 32 compares the reception strength information added to the advertisement packet received from the at least two fixed receivers 20. The analysis unit 32 selects the advertisement packet having the strongest reception strength indicated by the reception strength information. The analysis unit 32 outputs the terminal ID and biometric information acquired from the selected advertisement packet and the receiver ID and reception time information added to the selected advertisement packet to the first update unit 33.

The analysis unit 32 determines whether or not the portable receiver 25 has received the advertisement packet based on the receiver ID added to the advertisement packet. When the portable receiver 25 receives the advertisement packet, the analysis unit 32 outputs the terminal ID and biometric information acquired from the advertisement packet and the receiver ID for identifying the portable receiver 25 to the notification unit 34. do.

The first update unit 33 updates the management table 311 stored in the table storage unit 31. When the first update unit 33 receives the terminal ID, the biological information, the receiver ID, and the reception time information from the analysis unit 32, the first update unit 33 extracts the record corresponding to the terminal ID from the management table.

The first update unit 33 updates the biometric information of the extracted record with the biometric information received from the analysis unit 32. The first update unit 33 updates the latest reception time of the extracted record to the reception time indicated by the reception time information received from the analysis unit 32.

Further, the first update unit 33 stores in advance a corresponding table in which the receiver ID of the fixed receiver 20 and the section ID for identifying the section 202 in which the fixed receiver 20 is installed are associated with each other. There is. The first update unit 33 reads the section ID corresponding to the receiver ID received from the analysis unit 32 from the corresponding table, and estimates the section 202 identified by the read section ID as the location of the occupant 100. The first update unit 33 updates the location information of the extracted record with the read partition ID.

The notification unit 34 performs various notification processes. The notification unit 34 constantly monitors the latest reception time of the management table 311. The notification unit 34 extracts a record including the latest reception time whose time difference from the current time exceeds the specified time, and changes the unknown flag of the extracted record to 1. The specified time is set to be longer than the transmission cycle of the advertisement packet by the terminal device 10. When the time difference between the latest reception time and the current time exceeds the specified time, none of the fixed receivers 20 has received the advertisement packet even though the terminal device 10 has transmitted the advertisement packet. Therefore, the notification unit 34 outputs a warning indicating that the location of the occupant 100 indicated by the occupant ID of the extracted record is unknown. Specifically, the notification unit 34 causes the display 305 (see FIG. 4) to display a warning screen indicating that the location of the occupant 100 is unknown.

For example, when the occupant 100 falls from the ship 200 into the sea, it becomes difficult for any fixed receiver 20 to receive the advertisement packet from the terminal device 10 worn by the occupant 100. Alternatively, if a metal plate that shields radio waves covers the occupant 100 due to an accident in the ship 200, it becomes difficult for any fixed receiver 20 to receive the advertisement packet from the terminal device 10 worn by the occupant 100. In such a case, the time difference between the latest reception time and the current time exceeds the specified time, and a warning indicating that the whereabouts of the occupant 100 is unknown is output.

Further, when the notification unit 34 receives the terminal ID, the biometric information, and the receiver ID for identifying the portable receiver 25 from the analysis unit 32, the notification unit 34 extracts the record including the terminal ID from the management table 311. When the unknown flag of the extracted record is 1, the notification unit 34 displays a notification screen indicating that the portable receiver 25 has received the advertisement packet from the terminal device 10 mounted on the occupant 100 whose location is unknown. It is displayed in (see FIG. 4).

The second update unit 35 constantly monitors the location information of the management table 311 and identifies whether each of the plurality of sections 202 is a manned section or an unmanned section. The manned section is a section in which the occupant 100 is located. The unmanned section is a section in which the occupant 100 is not present. The second update unit 35 updates the partition table 312 stored in the table storage unit 31 according to the specific result.

<Fire extinguishing device>
The fire extinguishing device 40 has a fire detector and two types of fire extinguishing agents. When the fire detector detects a fire, the fire extinguishing device 40 sprays one of the two types of fire extinguishing agents. One of the two types of fire extinguishing agent is a fire extinguishing agent having a small effect on the human body (for example, water), and the other is a fire extinguishing agent having a high effect on the human body (for example, halon). A fire extinguishing agent having a high effect on the human body has higher fire extinguishing performance than a fire extinguishing agent having a small effect on the human body.

Each of the fire extinguishing devices 40-1, 40-2, ... Stores in advance a section ID that identifies the section 202 in which the fire extinguishing device is installed. When the fire detector detects a fire, the fire extinguishing device 40 refers to the partition table 312 (see FIG. 7) managed by the management device 30 and confirms the partition information corresponding to the stored partition ID. When the section information indicates a manned section, the fire extinguishing device 40 sprays a fire extinguishing agent having little effect on the human body. When the section information indicates an unmanned section, the fire extinguishing device 40 sprays a fire extinguishing agent having a high effect on the human body.

<Table update process>
FIG. 8 is a flowchart showing a flow of update processing of the management table and the partition table in the management device. First, the terminal device 10 determines whether or not it is the transmission time of the advertisement packet (step S1). Since the transmission cycle of the advertisement packet is predetermined, the time when the transmission cycle has elapsed from the transmission time of the previous advertisement packet is the next transmission time.

When it is the transmission time of the advertisement packet (YES in step S1), the terminal device 10 generates an advertisement packet including the latest biometric information output from the biosensor 11 and transmits the generated advertisement packet (step S2). ..

Next, at least one fixed receiver 20 installed near the terminal device 10 receives the advertisement packet and transfers the received advertisement packet to the management device 30 (step S3). At this time, the fixed receiver 20 adds the reception strength information, the reception time information, and the receiver ID to the advertisement packet to be transferred to the management device 30.

Next, the management device 30 analyzes the advertisement packet and acquires the terminal ID and the biometric information (step S4).

Next, the management device 30 estimates the location of the occupant 100 who attaches the terminal device 10 that transmitted the advertisement packet, based on the position of the fixed receiver 20 identified by the receiver ID attached to the advertisement packet. (Step S5).

Specifically, when only one fixed receiver 20 receives the advertisement packet, the management device 30 sets the section 202 of the section ID corresponding to the receiver ID added to the advertisement packet to the occupant 100. Estimated as the whereabouts of. When at least two fixed receivers 20 receive the same advertisement packet, the management device 30 compares the reception strength information added to the advertisement packet received from the at least two fixed receivers 20. The management device 30 estimates the section 202 of the section ID corresponding to the receiver ID added to the advertisement packet having the strongest reception strength indicated by the reception strength information as the location of the occupant 100.

Next, the management device 30 updates the management table 311 (step S6). Specifically, the biometric information, the location information, and the latest reception time of the management table 311 are updated. Further, the management device 30 updates the partition table 312 based on the updated management table 311 (step S7). After step S7, the update process of the management table and the partition table is completed.

<Warning processing of unknown location>
FIG. 9 is a flowchart showing the flow of warning processing indicating that the whereabouts of the occupants are unknown. First, the management device 30 determines whether or not the time difference between the latest reception time and the current time of each record in the management table 311 exceeds the predetermined time (step S11). If NO in step S11, the warning process returns to step S11.

If YES in step S11, the management device 30 extracts a record whose time difference between the latest reception time and the current time exceeds the specified time from the management table 311 and specifies the occupant ID of the extracted record (step S12). At this time, the management device 30 changes the unknown flag of the extracted record to 1.

Next, the management device 30 outputs a warning indicating that the location of the occupant 100 identified by the specified occupant ID is unknown (step S13). After step S13, the warning process ends. As a result, the guard who received the warning can quickly start the search activity for the crew 100. For example, the observer uses the portable receiver 25 to search for the occupant 100 whose location is unknown.

In step S13, the management device 30 may display the location information of the record extracted in step S12 on the display 305 (see FIG. 4). The location information is the location confirmed immediately before the location of the occupant 100 becomes unknown. This allows the watchman to narrow down the search range.

<Reception notification processing of advertisement packets by portable receiver>
FIG. 10 is a flowchart showing the flow of reception notification processing of the advertisement packet by the portable receiver. First, the management device 30 determines whether or not the portable receiver 25 has received the advertisement packet (step S21). When the receiver ID added to the advertisement packet received from the communication cable 50 identifies the portable receiver 25, the management device 30 determines that the portable receiver 25 has received the advertisement packet. If NO in step S21, the reception notification process returns to step S21.

If YES in step S21, the management device 30 analyzes the advertisement packet received by the portable receiver 25 and acquires the terminal ID (step S22).

Next, the management device 30 extracts a record including the acquired terminal ID from the management table 311 and determines whether or not the unknown flag of the extracted record is 1 (step S23). When the unknown flag is 0 (NO in step S23), the reception notification process returns to step S21.

When the unknown flag is 1 (YES in step S23), the management device 30 notifies that the advertisement packet from the terminal device 10 mounted on the occupant 100 whose location is unknown has been received (step S24). After step S24, the reception notification process ends. As a result, the observer can recognize that the occupant 100 whose location is unknown is near the portable receiver 25.

<Fire extinguishing treatment of fire extinguishing device>
FIG. 11 is a flowchart showing the flow of fire extinguishing processing of the fire extinguishing device. First, the fire extinguishing device 40 determines whether or not the fire detector has detected a fire (step S31). If no fire has been detected (NO in step S31), the fire extinguishing process returns to step S31.

When a fire is detected (YES in step S31), the fire extinguishing device 40 acquires the section information corresponding to the section ID that identifies the section 202 in which the fire extinguishing device 40 is installed from the section table 312 managed by the management device 30 (YES in step S31). Step S32).

The fire extinguishing device 40 determines whether or not the acquired section information indicates an unmanned section (step S33). When the section information indicates a manned section (NO in step S33), the fire extinguishing device 40 sprays a fire extinguishing agent that does not affect the human body (step S34). When the section information indicates an unmanned section (YES in step S33), the fire extinguishing device 40 sprays a fire extinguishing agent having an effect on the human body (step S35). After step S34 or step S35, the fire extinguishing process ends.

<Advantage>
As described above, the management system 1 includes a terminal device 10 and a plurality of fixed receivers 20. The terminal device 10 is attached to the occupant 100 and transmits an advertisement packet according to the BLE standard. The plurality of fixed receivers 20 are each installed at a plurality of different positions in the ship 200 to receive advertisement packets. The terminal device 10 includes a biosensor 11 that outputs biometric information of the occupant 100. The terminal device 10 includes the biometric information output from the biometric sensor 11 in the advertisement packet. The management system 1 further includes a management device 30. The management device 30 acquires biometric information included in the advertisement packet received by any of the plurality of fixed receivers 20, and the location of the occupant 100 based on the position of the fixed receiver 20 that received the advertisement packet. To estimate.

The radio field strength of the advertising packet in the BLE standard is smaller than the radio wave strength of the wireless frame transmitted from the wireless LAN terminal device. Therefore, it is possible to suppress the interference of advertisement packets transmitted from the plurality of terminal devices 10. Since the location of the occupant 100 is estimated based on the position of the fixed receiver 20 that has received the advertisement packet, the management device 30 can accurately manage the location of the occupant 100. In addition, the advertisement packet contains biometric information. Therefore, the management device 30 can manage the location of the occupant 100 and also manage the biometric information of the occupant 100.

When the management device 30 receives the advertisement packet by at least two fixed receivers 20, the management device 30 is based on the position of the fixed receiver 20 having the highest reception strength of the advertised packet among the at least two fixed receivers 20. , Estimate the whereabouts of the occupant 100. The shorter the distance between the fixed receiver 20 and the terminal device 10, the stronger the reception strength of the advertisement packet from the terminal device 10 by the fixed receiver 20. Therefore, the location of the occupant 100 can be estimated accurately.

When none of the plurality of fixed receivers 20 receives the advertisement packet, the management device 30 outputs a warning indicating that the whereabouts of the occupant 100 is unknown. As a result, the guard who received the warning can quickly start the search activity for the crew 100.

The management system 1 further includes a plurality of fire extinguishing devices 40 provided for each of the plurality of compartments 202 in the ship 200. The management device 30 identifies an unmanned section in which the occupant 100 does not exist among the plurality of sections 202 based on the estimated location of the occupant 100. Of the plurality of fire extinguishing devices 40, the fire extinguishing device 40 corresponding to the unmanned section sprays a fire extinguishing agent having an effect on the human body when a fire breaks out in the unmanned section. As a result, the fire in the unmanned section can be extinguished quickly.

The management system 1 further includes a portable receiver 25 capable of receiving advertisement packets. This makes it easier for the observer to search for the occupant 100 whose location is unknown by using the portable receiver 25.

[Embodiment 2]
The management system according to the second embodiment is a modification of the management system 1 according to the first embodiment, and is provided with the terminal device 10A shown in FIG. 12 instead of the terminal device 10 shown in FIG. It is different from the management system 1 according to 1. FIG. 12 is a diagram showing an example of a terminal device included in the management system according to the second embodiment.

As shown in FIG. 12, the terminal device 10A differs from the terminal device 10 shown in FIG. 3 in that it further includes a press button 13 for emergency notification.

The press button 13 is pressed by the occupant 100 when some abnormality occurs in the occupant 100.

The communication unit 12 performs the following processing in addition to the processing described in the first embodiment. That is, when the press button 13 is pressed, the communication unit 12 generates an advertisement packet including abnormality information indicating that an abnormality has occurred in the occupant 100, and transmits the advertisement packet. Specifically, the communication unit 12 generates an advertisement packet containing abnormality information in the Manufacturer Specific Data.

It is preferable that the communication unit 12 increases the transmission strength of the advertisement packet containing the abnormality information and the transmission strength of the advertisement packet not including the abnormality information. Specifically, the communication unit 12 maximizes the transmission strength of the advertisement packet including the abnormality information.

For example, when a metal plate that shields radio waves covers the occupant 100, the fixed receiver 20 is less likely to receive an advertising packet from the terminal device 10A mounted on the occupant 100. In such a case, when the occupant 100 presses the press button 13, the transmission strength of the advantageous packet is increased. As a result, the fixed receiver 20 can easily receive the advancing packet.

Alternatively, when the occupant 100 falls from the ship 200, the portable receiver 25 is less likely to receive the promoting packet from the terminal device 10A mounted on the occupant 100. In such a case, when the occupant 100 presses the press button 13, the transmission strength of the advantageous packet is increased. As a result, the portable receiver 25 can easily receive the advancing packet.

When the fixed receiver 20 receives the advertisement packet including the abnormality information, the reception strength information, the reception time information, and the receiver ID are added to the advertisement packet and output to the management device 30 as in the first embodiment. ..

In addition to the processing described in the first embodiment, the management device 30 performs the following processing when it receives an advertisement packet containing abnormality information from the fixed receiver 20.

The analysis unit 32 of the management device 30 analyzes the advertisement packet and acquires the terminal ID and the abnormality information. The analysis unit 32 outputs the terminal ID acquired from the advertisement packet, the receiver ID added to the advertisement packet, and the reception time information to the first update unit 33. When a plurality of fixed receivers 20 receive the same advertisement packet, the analysis unit 32 compares the reception strength information added to the advertisement packet received from the plurality of fixed receivers 20. The analysis unit 32 outputs the terminal ID specified from the advertisement packet having the strongest reception strength indicated by the reception strength information, the receiver ID added to the advertisement packet, and the reception time information to the first update unit 33.

Further, the analysis unit 32 outputs the terminal ID and the abnormality information acquired from the advertisement packet to the notification unit 34.

The first update unit 33 updates the location information and the latest reception time of the management table based on the terminal ID, the receiver ID, and the reception time information received from the analysis unit 32.

When the notification unit 34 receives the terminal ID and the abnormality information from the analysis unit 32, the notification unit 34 acquires the occupant ID and the location information corresponding to the terminal ID from the management table 311. The notification unit 34 outputs a warning indicating that an abnormality has occurred in the occupant 100 identified by the acquired occupant ID. Specifically, the notification unit 34 causes the display 305 to display a warning screen indicating that an abnormality has occurred in the occupant 100. As a result, the observer can quickly confirm the abnormality of the occupant 100.

Further, it is preferable that the notification unit 34 displays the location information acquired from the management table on the display 305. As a result, the observer can recognize the location of the occupant 100 in which the abnormality has occurred, and can quickly move to the occupant 100.

FIG. 13 is a flowchart showing the flow of abnormality notification processing according to the second embodiment. Note that FIG. 13 shows an example in which the fixed receiver 20 receives the advertisement packet.

First, the terminal device 10 determines whether or not the press button 13 has been pressed (step S41). If the press button 13 is not pressed (NO in step S41), the abnormality notification process returns to step S41.

When the press button 13 is pressed (YES in step S41), the terminal device 10 generates an advertisement packet containing the abnormality information and transmits the generated advertisement packet (step S42). At this time, the terminal device 10 maximizes the transmission strength of the advertised packet.

Next, at least one fixed receiver 20 installed near the terminal device 10 receives the advertisement packet and transfers the received advertisement packet to the management device 30 (step S43). At this time, the fixed receiver 20 adds the reception strength information, the reception time information, and the receiver ID to the advertisement packet to be transferred to the management device 30.

Next, the management device 30 analyzes the advertisement packet and acquires the terminal ID and the abnormality information (step S44).

Next, the management device 30 estimates the location of the occupant 100 who attaches the terminal device 10 that transmitted the advertisement packet, based on the position of the fixed receiver 20 identified by the receiver ID attached to the advertisement packet. (Step S45).

Next, the management device 30 updates the management table 311 (step S46). Specifically, the location information and the latest reception time of the management table 311 are updated. Further, the management device 30 updates the partition table 312 based on the updated management table 311 (step S47).

Next, the management device 30 outputs a warning indicating that an abnormality has occurred in the occupant 100 identified by the occupant ID corresponding to the terminal ID acquired in step S44 (step S48). After step S48, the abnormality notification process ends.

The processing flow when the portable receiver 25 receives the advertisement packet including the abnormality information is the same as the processing flow shown in FIG.

[Embodiment 3]
The management system according to the third embodiment is a modification of the management system according to the second embodiment. The management system according to the third embodiment is different from the management system according to the second embodiment in that the terminal device 10B shown in FIG. 14 is provided in place of the terminal device 10A shown in FIG. FIG. 14 is a diagram showing an example of a terminal device included in the management system according to the third embodiment.

As shown in FIG. 14, the terminal device 10B differs from the terminal device 10A shown in FIG. 12 in that it includes the inundation sensor 14 instead of the push button 13.

The flood sensor 14 is a sensor that detects flooding. When the inundation sensor 14 detects inundation, the communication unit 12 generates an advertisement packet including abnormality information indicating that an abnormality has occurred in the occupant 100, and transmits the advertisement packet. Specifically, the communication unit 12 generates an advertisement packet containing abnormality information in the Manufacturer Specific Data.

At this time, it is preferable that the communication unit 12 increases the transmission strength of the advertisement packet containing the abnormality information and the transmission strength of the advertisement packet not including the abnormality information. Specifically, the communication unit 12 maximizes the transmission strength of the advertisement packet including the abnormality information.

The processing of the management device 30 when the fixed receiver 20 and the portable receiver 25 receive the advertisement packet including the abnormality information is the same as that of the second embodiment.

According to the third embodiment, when the occupant 100 accidentally falls from the ship 200 and the inundation sensor 14 detects the inundation due to seawater, the advertisement packet including the abnormality information is automatically transmitted. This makes it easier to search for the occupant 100 who has fallen from the ship 200.

[Embodiment 4]
The management system according to the fourth embodiment is a modification of the management system according to the second embodiment. The management system according to the fourth embodiment is different from the management system according to the second embodiment in that the terminal device 10C shown in FIG. 15 is provided in place of the terminal device 10A shown in FIG. FIG. 15 is a diagram showing an example of a terminal device included in the management system according to the fourth embodiment.

The terminal device 10C differs from the terminal device 10A shown in FIG. 12 in that it further includes a GPS (Global Positioning System) sensor 15. The GPS sensor 15 receives radio waves (GPS radio waves) from the global positioning system and calculates position coordinates.

When the press button 13 is pressed, the communication unit 12 generates an advertisement packet including the position coordinates calculated by the GPS sensor 15 together with the abnormality information, and transmits the advertisement packet. Specifically, the communication unit 12 generates an advertisement packet including abnormality information and position coordinates in the Manufacturer Specific Data.

When the occupant 100 is inside the ship 200, the GPS sensor 15 of the terminal device 10 is difficult to receive the GPS radio wave because the occupant 100 is surrounded by the steel plate constituting the ship 200. However, when the occupant 100 falls from the ship 200, the GPS sensor 15 tends to receive GPS radio waves.

When the fixed receiver 20 or the portable receiver 25 receives the advertisement packet including the abnormality information and the position coordinates, the management device 30 acquires the terminal ID, the abnormality information and the position coordinates from the advertisement packet. Then, the notification unit 34 of the management device 30 outputs a warning indicating that an abnormality has occurred in the occupant 100 equipped with the terminal device 10 identified by the terminal ID, and also notifies the acquired position coordinates. This makes it easier for the observer to locate the occupant 100 in which the abnormality has occurred.

The fourth embodiment may be applied to the third embodiment. That is, the terminal device 10C may include the inundation sensor 14 instead of the push button 13. Then, the communication unit 12 may generate an advertisement packet including the position coordinates calculated by the GPS sensor 15 together with the abnormality information when the inundation sensor 14 detects the inundation, and transmit the advertisement packet.

[Embodiment 5]
In the management system according to the fifth embodiment, the terminal device encrypts the biometric information output from the biometric sensor 11 and generates an advertisement packet including the encrypted biometric information. As a result, even if the advertisement packet is intercepted by an unintended person, it is possible to prevent the leakage of biometric information.

FIG. 16 is a diagram showing a configuration of a management system according to the fifth embodiment. As shown in FIG. 16, the management system 1D according to the fifth embodiment compares the management system 1 (see FIG. 2) according to the first embodiment, and replaces the terminal device 10 and the management device 30 with a terminal device. It is different in that it includes a 10D and a management device 30D, respectively, and further includes a key generation device 60 and a reader / writer 70.

FIG. 17 is a diagram showing the configuration of the terminal device according to the fifth embodiment. As shown in FIG. 17, the terminal device 10D differs from the terminal device 10 according to the first embodiment in that it further includes an IC chip 16 for storing an encryption key.

In addition to the processing described in the first embodiment, the communication unit 12 encrypts the biometric information output from the biosensor 11 using the encryption key stored in the IC chip 16, and advertises the encrypted biometric information. Performs the processing to be included in.

Returning to FIG. 16, the key generation device 60 is composed of, for example, a CPU, a ROM, and a RAM. In addition, these parts are connected to each other via an internal bus. The CPU expands the program stored in the ROM into a RAM or the like and executes it. The program stored in the ROM is a program in which the processing method of the key generation device 60 is described.

The key generation device 60 generates an encryption key (public key) and a decryption key (private key) corresponding to the encryption key at regular intervals (for example, every week) using a public key encryption method.

The reader / writer 70 performs non-contact data communication with the IC chip 16 included in the terminal device 10D by using electromagnetic induction or electromagnetic coupling. The reader / writer 70 rewrites the encryption key stored in the IC chip 16 with the latest encryption key generated by the key generation device 60. The occupant 100 equipped with the terminal device 10D holds the terminal device 10D over the reader / writer 70 after the key generation device 60 updates the encryption key. As a result, the latest encryption key is recorded on the IC chip 16 of the terminal device 10D.

FIG. 18 is a diagram showing a functional configuration of the management device according to the fifth embodiment. As shown in FIG. 18, the management device 30D differs from the management device 30 according to the first embodiment in that it includes a decoding unit 36.

The decryption unit 36 acquires the latest decryption key from the key generation device 60 via the communication cable 50. The decoding unit 36 decodes the biometric information acquired by the analysis unit 32 using the decoding key.

According to the fifth embodiment, the encrypted biometric information is included in the advertisement packet. Therefore, even if the advertisement packet is intercepted by an unintended person, the biometric information is not deciphered. This can enhance security.

In the above description, it is assumed that the management device 30D decodes the biometric information using the decoding key. However, the fixed receiver 20 may decode the biometric information using the decoding key.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1,1D management system, 10,10A-10D terminal device, 11 biosensor, 12 communication unit, 13 press button, 14 flood sensor, 15 GPS sensor, 16 IC chip, 20 fixed receiver, 25 portable receiver, 30, 30D management device, 31 table storage unit, 32 analysis unit, 33 first update unit, 34 notification unit, 35 second update unit, 36 decoding unit, 40 fire extinguishing device, 50 communication cable, 60 key generator, 70 Reader / writer, 100 occupants, 200 vessels, 201 walls, 202 compartments, 300 radio waves, 302 ROMs, 303 RAMs, 304 network interfaces, 305 displays, 306 storage devices, 310 management programs, 311 management tables, 312 compartment tables.

Claims (10)

A management system that manages the occupants of a ship
A terminal device mounted on the occupant and transmitting an advertisement packet according to the Bluetooth (registered trademark) Low Energy standard at a predetermined cycle, and a terminal device.
It is installed at a plurality of different positions in the ship, and is provided with a plurality of first receivers for receiving the advertisement packet.
The terminal device includes a biosensor that outputs biometric information of the occupant.
The terminal device includes the biometric information output from the biometric sensor in the advertisement packet.
The management system is
The biometric information included in the advertisement packet received by any of the plurality of first receivers is acquired, and based on the position of the first receiver among the plurality of first receivers that received the advertisement packet. Further equipped with a management device for estimating the whereabouts of the occupants ,
The management device is
For each occupant, the estimated location and the reception time of the advertisement packet are managed in association with each other.
When the time difference between the latest received time and the current time that is being managed exceeds the specified time, the first warning indicating that the location of the occupant corresponding to the latest received time is unknown is output and managed. system. When at least two first receivers of the plurality of first receivers receive the advertisement packet, the management device has the highest reception strength of the advertisement packet among the at least two first receivers. The management system according to claim 1, wherein the location of the occupant is estimated based on the position of the large first receiver. The management system according to claim 1, wherein the management device outputs the estimated location associated with the latest reception time for the occupant whose location is unknown . Further, a plurality of fire extinguishing devices provided for each of the plurality of sections in the ship are provided.
Each of the plurality of fire extinguishing devices can spray two kinds of fire extinguishing agents.
Based on the estimated location, the management device identifies an unmanned section in which the occupant does not exist among the plurality of sections.
The fire extinguishing device corresponding to the unmanned section among the plurality of fire extinguishing devices sprays the fire extinguishing agent having a higher effect on the human body among the two types of fire extinguishing agents when a fire occurs in the unmanned section. The management system according to any one of claims 1 to 3. The terminal device further includes a push button.
The terminal device includes, in the advertisement packet, abnormality information indicating that an abnormality has occurred in the occupant when the push button is pressed.
The management device outputs a second warning indicating that an abnormality has occurred in the occupant when any one of the plurality of first receivers receives the advertisement packet containing the abnormality information, claim 1. The management system according to any one of 4 to 4. The terminal device further includes an inundation sensor for detecting inundation.
The terminal device includes, in the advertisement packet, abnormality information indicating that an abnormality has occurred in the occupant when the inundation sensor detects inundation.
The management device outputs a second warning indicating that an abnormality has occurred in the occupant when any one of the plurality of first receivers receives the advertisement packet containing the abnormality information, claim 1. The management system according to any one of 4 to 4. The management system according to claim 5 or 6, wherein the terminal device increases the transmission strength of the advertisement packet containing the abnormality information to be larger than the transmission strength of the advertisement packet not including the abnormality information. The terminal device further includes a GPS sensor that receives radio waves from the Global Positioning System and calculates position coordinates.
The terminal device includes the position coordinates calculated by the GPS sensor in the advertisement packet together with the abnormality information.
One of claims 5 to 7, wherein the management device notifies the position coordinates when any of the plurality of first receivers receives the advertisement packet including the abnormality information and the position coordinates. The management system described in the section. The management system according to any one of claims 1 to 8, further comprising a portable second receiver capable of receiving the advertisement packet. It is further equipped with a key generator that generates an encryption key and a decryption key at regular intervals.
The terminal device acquires the latest encryption key from the key generation device, and includes the biometric information encrypted using the acquired encryption key in the advertisement packet.
The plurality of first receivers or the management device uses the latest decryption key generated by the key generation device to decode the encrypted biometric information contained in the advertisement packet, claim 1. The management system according to any one of 9 to 9.

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