JP6951104B2 - Alarm system - Google Patents

Description

Embodiments of the present invention relate to alarm systems.

Conventionally, in station premises such as platforms, Braille blocks and the like have been installed to prevent access to dangerous places, thereby taking measures such as preventing falls from the edge of the platform. However, Braille blocks can be difficult to notice and can be difficult to install in some places. Further, in recent years, a movable fence (platform door) may be provided at the end of the platform, but the movable fence physically prevents the fall and does not prevent the approach to the dangerous place itself. In addition, there are places where it is difficult to install movable fences, and there are situations in which it is necessary for station staff to take human measures.

Japanese Unexamined Patent Publication No. 2001-351191

In order to solve the above problems, it is an object of the present invention to provide an alarm system capable of notifying an approach to a dangerous place.

According to the embodiment, the alarm system has a plurality of beacons arranged in a dangerous place in the station yard or around the dangerous place, and a beacon terminal portable to a user who uses the station. Each of the beacons has a first communication unit, a status determination unit, and a control unit. The first communication unit transmits radio waves that can be received by the beacon terminal within a predetermined communication area. The situation determination unit determines whether or not the situation should output an alarm to a user approaching the beacon. When the control unit determines that the situation determination unit should not output an alarm to the user, the control unit stops the transmission of radio waves by the first communication unit, and the situation determination unit should output an alarm to the user. When it is determined that the above is true, the first communication unit transmits a radio wave. The beacon terminal has a second communication unit, a determination unit, and a voice unit. The second communication unit receives radio waves transmitted by the beacon in the communication area of each beacon. The determination unit determines the distance to the beacon of the source of the radio wave based on the strength of the radio wave received by the second communication unit. The voice unit emits a sound according to the distance to the beacon of the source of the radio wave determined by the determination unit.

FIG. 1 is a block diagram showing a configuration example of an alarm system according to an embodiment. FIG. 2 is a block diagram showing a configuration example of the beacon according to the embodiment. FIG. 3 is a block diagram showing a configuration example of the beacon terminal according to the embodiment. FIG. 4 is a block diagram showing a configuration example of the monitoring device according to the embodiment. FIG. 5 is a diagram showing an installation example of the beacon according to the embodiment. FIG. 6 is a diagram showing an example of a communication area of the beacon according to the embodiment. FIG. 7 is a flowchart for explaining an operation example of the beacon according to the embodiment. FIG. 8 is a flowchart for explaining an operation example of the beacon terminal according to the embodiment. FIG. 9 is a flowchart for explaining an operation example of the monitoring device according to the embodiment.

Hereinafter, embodiments will be described with reference to the drawings.
FIG. 1 is a diagram schematically showing an overall configuration example of an alarm system according to an embodiment.
The warning system notifies a person (user) of approaching a specific place (dangerous place, dangerous area, restricted area, etc.) in a specific area such as a station yard, or monitors a user in the vicinity of the specific place. It is a system to do. The warning system according to the present embodiment is not limited to a system that gives an alarm for approaching a dangerous place in a station yard, but in the following description, a user approaches a dangerous place in a platform in the station yard. A system for notifying this shall be described.

As shown in FIG. 1, the alarm system 1 has a plurality of beacons 2, a beacon terminal 3, a monitoring device 4, and a display device 5.
The plurality of beacons 2 emit radio waves that can be received by the beacon terminal 3 that issues an alarm such as an alarm, voice guidance, or light. Each beacon 2 is installed near a boundary with a dangerous place or a dangerous area. Each beacon 2 has a predetermined communication area, and transmits radio waves that can be received by the beacon terminal 3 in the communication area. The strength of the radio waves emitted by each beacon 2 becomes weaker as the distance from the installation position of the beacon 2 as a transmission source increases in the communication area.

Further, each beacon 2 has a function of receiving a radio wave as a response from the beacon terminal 3 that has received the transmitted radio wave and determining the distance to the beacon terminal 3. Further, each beacon 2 has a communication function with the monitoring device 4. Each beacon 2 supplies to the monitoring device 4 the position information of the beacon terminal 3 including the information indicating the distance to the beacon terminal 3 determined based on the response from the beacon terminal 3 in the communication area.

The beacon terminal 3 is carried by a user who moves in the station yard. For example, the beacon terminal 3 may be installed on a cane carried by the user. Further, the beacon terminal 3 may be provided on a necklace, a bracelet, a wristwatch, or the like. Further, the beacon terminal 3 may be realized as one function of an electronic device that can be carried by a user such as a mobile phone, a smartphone, a wearable terminal, or a tablet PC.

The beacon terminal 3 has a function of wirelessly communicating with the beacon 2. For example, the wireless communication between the beacon terminal 3 and the beacon 2 is short-range wireless communication such as low power consumption Bluetooth (registered trademark). However, the wireless communication between the beacon 2 and the beacon terminal 3 is not limited to a specific communication method, and may be a wireless LAN or the like.

When the beacon terminal 3 enters the communication area of the beacon 2, it receives the radio wave transmitted by the beacon 2. Upon receiving the radio wave from the beacon 2, the beacon terminal 3 determines the distance to the beacon 2 based on the strength of the received radio wave, and outputs an alarm (sound or light) according to the distance to the beacon 2. For example, the beacon terminal 3 increases the volume of the alarm as the distance from the beacon 2 becomes shorter (the stronger the received radio wave).

Further, when the beacon terminal 3 receives the radio wave from the beacon 2, it transmits a radio wave as a response signal to the received radio wave. The beacon terminal 3 transmits, for example, a radio wave as a response signal indicating the identification information (ID) of the beacon terminal 3.

The monitoring device 4 has a function of communicating with each beacon 2. The monitoring device 4 acquires information indicating the beacon terminal 3 in the communication area from each beacon 2. The monitoring device 4 is composed of, for example, a general-purpose server device, and has functions such as data processing. The monitoring device 4 is connected to the display device 5. The display device 5 displays information according to the control of the monitoring device 4. The monitoring device 4 displays, for example, information indicating the position of the beacon terminal 3 on the display device 5 based on the information acquired from the beacon 2.

The monitoring device 4 also has a function of communicating with the operation management system 6. The monitoring device 4 acquires information indicating the train operation status from the operation management system 6. For example, the monitoring device 4 acquires information such as the arrival (stop) of the train at the platform or the departure of the train from the operation management system 6.

Next, the configuration of the beacon 2 will be described.
FIG. 2 is a block diagram showing a configuration example of the beacon 2.
As shown in FIG. 2, the beacon 2 includes a processor 21, a ROM 22, a RAM 23, a storage unit 24, a beacon communication unit 25, a communication unit 26, and the like. Further, the beacon 2 may have a power supply circuit that is connected to an external power source to obtain power source power, or may use a battery that is appropriately charged as a power source.

The processor 21, ROM 22 and RAM 23 function as control units that control the entire device. The processor 21 is, for example, a calculation unit such as a CPU. The processor 21 realizes various processing functions by executing a program stored in the ROM 22 or the storage unit 24. The ROM 22 is a non-volatile memory and functions as a program memory. The ROM 22 stores programs and control data executed by the processor 21. The RAM 23 functions as a working memory that temporarily holds data. The RAM 23 loads a program and holds data being processed by the processor 21. The RAM 23 also functions as a buffer memory for temporarily holding communication data and the like.

The storage unit 24 is a memory for storing data. The storage unit 24 includes a rewritable non-volatile memory such as an HDD or SSD. For example, the storage unit 24 may store a program that can be executed by the processor 21, or may store information used for various determinations.
The communication unit 26 is a communication interface for communicating with the monitoring device 4. The communication unit 26 may communicate with the monitoring device 4 via a LAN or the like, or may communicate with the monitoring device 4 by wireless communication.

The beacon communication unit 25 is a communication unit for wireless communication with the beacon terminal 3. The beacon communication unit 25 has a directional antenna, a communication control unit, and the like, and a predetermined communication area capable of communicating with the beacon terminal 3 is set. The beacon communication unit 25 may be capable of wireless communication with the beacon terminal 3, and performs communication control according to the communication method of the beacon terminal 3. The beacon communication unit 25 has a function of determining the strength of the radio wave received from the beacon terminal 3. The beacon communication unit 25 determines the strength of the radio wave received from the beacon terminal 3 or the distance to the beacon terminal 3 based on the strength of the radio wave.

Next, the configuration of the beacon terminal 3 will be described.
FIG. 4 is a block diagram showing a configuration example of the beacon terminal 3.
As shown in FIG. 4, the beacon terminal 3 includes a processor 31, a ROM 32, a RAM 33, a storage unit 34, a beacon communication unit 35, a light emitting unit 36, a voice unit 37, and the like. The beacon terminal 3 has a main body having a shape that can be carried by a user, and the main body has a power supply circuit that generates electric power for operation from a battery, a battery, a received radio wave, or the like.

The processor 31, ROM 32, and RAM 33 function as a main control unit that controls the beacon terminal 3. The processor 31 is, for example, an arithmetic unit such as a CPU. The processor 31 realizes various processing functions by executing a program stored in the ROM 32 or the storage unit 34. The ROM 32 is a non-volatile memory and functions as a program memory. The ROM 32 stores programs and control data executed by the processor 31. The RAM 33 functions as a working memory that temporarily holds data. The RAM 33 loads a program and holds data being processed by the processor 41. The RAM 33 also functions as a buffer memory for temporarily holding communication data and the like.

The storage unit 34 is a memory for storing data. The storage unit 34 includes a rewritable non-volatile memory.
The beacon communication unit 35 is a communication unit for wireless communication with the beacon 2. The beacon communication unit 35 receives the radio wave from the beacon 2 and transmits the radio wave that the beacon 2 can receive. The beacon communication unit 35 transmits a radio wave including a signal indicating identification information (ID) given to the beacon terminal 3. The beacon communication unit 35 performs wireless communication with the beacon 2 by a communication method defined by a communication standard such as power-saving short-range wireless communication (for example, Bluetooth (registered trademark)) or wireless LAN.

The light emitting unit 36 emits light. The light emitting unit 36 is composed of, for example, an LED or the like. The light emitting unit 36 may be any as long as it emits light for notifying the approach to the dangerous place. For example, the light emitting unit 36 may emit light of a plurality of colors according to the control by the processor 31, or may emit light in a specific pattern. Further, the light emitting unit 36 may be composed of a display unit that displays characters, patterns, and the like.

The voice unit 37 outputs a sound. The voice unit 37 may be any as long as it emits a sound for notifying the approach to a dangerous place or the like. For example, the voice unit 37 may generate an alarm whose volume can be controlled, or may generate any of preset voice guidance (messages).

Next, the configuration of the monitoring device 4 will be described.
FIG. 4 is a block diagram schematically showing a configuration example of the monitoring device 4.
As shown in FIG. 4, the monitoring device 4 includes a processor 41, a ROM 42, a RAM 43, a storage unit 44, a first communication unit 45, a second communication unit 46, and the like.
The processor 41 controls the entire monitoring device 4. The processor 41 is, for example, a CPU. The processor 41 realizes various functions by operating based on various programs stored in the ROM 42 or the storage unit 44. The ROM 42 is a non-volatile memory in which a program, control data, and the like are stored in advance. For example, the ROM 42 functions as a program memory. The RAM 43 is a volatile memory that functions as a working memory. The RAM 43 functions as a buffer memory for temporarily storing data or the like being processed by the processor 41. The RAM 43 also functions as a buffer for temporarily storing data transmitted and received by the first communication unit 45 or the second communication unit 46.

The storage unit 44 is a rewritable non-volatile memory. The storage unit 44 is composed of, for example, a non-volatile memory capable of writing and rewriting data such as an HDD, SSD, EEPROM (registered trademark), and a flash ROM.
The first communication unit 45 is a communication interface for performing data communication with the beacon 2. The first communication unit 45 may be an interface capable of communicating with the beacon 2. The second communication unit 46 is a communication interface capable of communicating with the operation management system 6.

The operation management system 6 is a system that manages information indicating the situation in the station yard, and manages, for example, the stop and departure of a train at a platform. The monitoring device 4 acquires information indicating the situation in the station yard including the stop and departure of the train from the operation management system 6 via the second communication unit 46. Further, the operation management system 6 may be connected to each beacon 2 by communication, and may configure information indicating the situation in the station yard including the stop and departure of the train for each beacon 2. The first communication unit 45 and the second communication unit 46 may be configured by one communication unit.

Next, the installation position of the beacon 2 will be described.
FIG. 5 is a diagram showing an installation example of the beacon 2. Further, FIG. 6 is a diagram showing a configuration example of a communication area using a plurality of beacons 2. FIG. 5 shows an example in which a plurality of beacons 2 are installed in various places on the platform of a station as an example of installing the beacon 2 in the station yard.

In the installation example shown in FIG. 5, a plurality of beacons 2 are installed side by side at the platform end. Further, in the installation example shown in FIG. 5, the beacon 2 is installed not only at the platform end but also near the front end and the rear end of the platform, near the stairs, near the elevator installation location, and the like. That is, FIG. 5 shows an example in which the beacon 2 is arranged with the outside of the platform end (the side where the train arrives), the outside of the front end or the rear end of the platform, the stairs portion, the installation location of the elevator, and the like as dangerous places. .. The location where the beacon 2 is installed may be any location where the approach should be notified (warned) to the user carrying the beacon terminal 3, and can be appropriately set according to the operation mode and the like.

A plurality of beacons 2 installed side by side at the home end or the like form a communication area as shown in FIG. As shown in FIG. 6, the plurality of beacons 2 are installed so that the communication areas with the adjacent beacons 2 overlap each other at the home end or the like. The plurality of beacons 2 form a communication area so that it is determined that the distance from the beacon terminal 3 is very short at least at the boundary with the dangerous place (for example, the home end).

Further, in the present embodiment, in the communication area of each beacon 2, a plurality of stages of areas are set according to the distance from the beacon 2 (to be exact, the antenna of the beacon communication unit 25). In the example shown in FIG. 6, it is assumed that three stages of regions (far region, near region, and very close region) are set according to the distance from the beacon 2. When the beacon terminal 3 receives the radio wave transmitted from the beacon 2, which area is divided into three stages according to the distance from the beacon 2 which is the source of the radio wave based on the strength of the received radio wave. To judge. The beacon terminal 3 outputs an alarm according to the area divided according to the distance from the beacon 2.

For example, as the user carrying the beacon terminal 3 approaches the beacon 2, the radio wave received by the beacon terminal 3 (radio wave transmitted from the beacon 2) becomes stronger, so that the volume of the alarm emitted by the voice unit 37 is increased. To increase. In this case, the beacon terminal 3 outputs a larger alarm as the user carrying the beacon terminal 3 approaches the beacon 2 installed at the home end. As a result, the beacon terminal 3 (the user carrying the beacon terminal 3) can notify that the beacon 2 is approaching the home end where the beacon 2 is installed.

Further, the beacon terminal 3 may output a voice guidance (message) according to the distance from the beacon 2 (the strength of the radio wave received from the beacon 2) by the voice unit 37. For example, when the beacon terminal 3 is in an area very close to the beacon 2, it outputs a voice message notifying that it is approaching a dangerous place such as "approaching the home edge". You may.

Further, the beacon terminal 3 may control the light emitted by the light emitting unit 36 according to the distance from the beacon 2 (the strength of the radio wave received from the beacon 2). For example, the light emitting unit 36 of the beacon terminal 3 outputs red light when it is in a “very close region” to the beacon 2, and outputs yellow light when it is in a “close region”. If it is in a "far area", it may output green light. Further, the light emitting unit 36 of the beacon terminal 3 may control the light emitting pattern or the like according to the region with respect to the beacon 2.

It is assumed that the train arrives outside the platform end where the beacon 2 is installed. When boarding a train that has stopped outside the platform edge, the user moves (boards) into the train beyond the platform edge. In order to prevent the user from outputting an alarm such as an alarm when getting on the train, when the train stops outside the platform end and passengers can get on and off, the beacon 2 installed at the platform end receives radio waves. Stop making calls. As a result, when it is possible to get on and off the train stopped at the platform, the beacon terminal 3 does not receive the radio wave from the beacon 2 installed at the platform end, so that an alarm is given even if the vehicle approaches the platform end ( Sound and light) can be turned off.

Next, the operation of the beacon 2 will be described.
FIG. 7 is a flowchart for explaining an operation example of the beacon 2.
The processor 21 of each beacon 2 installed in the station yard determines at predetermined intervals whether it is a situation in which an alarm should be output to an approaching user (a situation in which a radio wave should be transmitted) (S11). .. If each beacon 2 does not emit radio waves, the beacon terminal 3 does not output an alarm such as an alarm or light. Therefore, the processor 21 of each beacon 2 stops transmitting radio waves and the beacon terminal 3 does not output an alarm (sound or light) when it is not a situation in which an alarm should be output to an approaching user. To do so.

In the present embodiment, the beacon terminal 3 does not output an alarm when passengers can board the train stopped at the platform end. For example, the processor 21 of the beacon 2 determines whether or not it is possible to board a train stopped at the platform based on the information acquired from the operation management system 6 via the monitoring device 4. If it is possible to board a stopped train, the processor 21 of the beacon 2 installed at the platform end determines that the alarm to the user should be stopped. Further, if it is not possible to board the train, the processor 21 of the beacon 2 installed at the platform end determines that the alarm should be output to the approaching user. As a result, the beacon terminal 3 carried by the user can be prevented from outputting an alarm when the user can board the train.

When it is determined that the situation is not such that an alarm should be output to the user (S12, NO), the processor 21 of the beacon 2 stops the transmission of radio waves by the beacon communication unit 25. When it is determined that an alarm should be output to an approaching user (S12, YES), the processor 21 of the beacon 2 transmits radio waves that can be received by the beacon terminal 3 in the communication area. Transmission from section 25 (S13).

The processor 21 of the beacon 2 is in a state where the beacon communication unit 25 can transmit radio waves and receive radio waves as a response signal from the beacon terminal 3 in the communication area (S14). The beacon terminal 3 that has received the radio wave from the beacon 2 outputs the radio wave as a response signal including the identification information (ID). If there is no response (radio wave) from the beacon terminal 3 (S14, NO), the processor 21 of the beacon 2 returns to S11.

When a response is received from the beacon terminal 3 (S14, YES), the processor 21 of the beacon 2 identifies the ID of the beacon terminal 3 which is the source of the response from the received response signal (S15). Further, when the radio wave as a response is received from the beacon terminal 3, the processor 21 of the beacon 2 determines the distance to the beacon terminal 3 based on the strength of the radio wave as the received response (S16). For example, as shown in FIG. 6, the processor 21 of the beacon 2 determines in which region the beacon terminal 3 is located among a plurality of regions (for example, a distant region, a near region, or a very close region) divided according to a distance. judge.

Upon determining the distance to the beacon terminal 3 (the area where the beacon terminal 3 is located), the processor 21 transmits the position information indicating the position of the beacon terminal 3 that transmitted the response to the monitoring device 4 (S17). Here, the position information of the beacon terminal 3 transmitted by the beacon 2 to the monitoring device 4 is, for example, information indicating the installation position of the beacon that received the response from the beacon terminal 3, the ID of the beacon terminal 3 that transmitted the response, and the response. It is assumed that the information includes information indicating the distance from the beacon 2 that received the message to the beacon terminal 3 that transmitted the response. Further, the beacon 2 may receive a response from a plurality of beacon terminals 3. In such a case, the processor 21 of the beacon 2 executes the process of S15-17 for all the beacon terminals 3 that have received the response, and returns to S11.

Next, the operation of the beacon terminal 3 will be described.
FIG. 8 is a flowchart for explaining an operation example of the beacon terminal 3.
The beacon communication unit 35 of the beacon terminal 3 is in a state of being able to receive radio waves from the beacon 2 (S21). When the beacon communication unit 35 receives the radio wave from the beacon 2 (S21, YES), the processor 31 of the beacon terminal 3 determines the distance to the beacon 2 which is the source of the radio wave based on the strength of the received radio wave. (S22). For example, as shown in FIG. 6, the processor 31 of the beacon terminal 3 corresponds to any region among a plurality of regions (for example, a distant region, a near region, or a very close region) divided according to the distance from the beacon 2. Determine if there is a beacon terminal 3.

Upon determining the distance to the beacon 2, the processor 31 outputs an alarm with a volume corresponding to the distance to the beacon 2 (the strength of the received radio wave) from the voice unit 37 (S23). The closer the distance to the beacon 2 is, the closer the processor 31 of the beacon terminal 3 is, the more a sound alarm is output by the voice unit 37 to notify that it is dangerous.

For example, when determining the distance to the beacon 2 in three stages (far, near, very close), the processor 31 sounds an alarm at a volume in each of the three stages according to the distance to the beacon 2. That is, the processor 31 sounds an alarm at a low volume (first volume) if the beacon terminal 3 is in a distant area, and a second volume (for example, a user) that is louder than the first volume if the beacon terminal 3 is in a near area. Sound the alarm at a volume that is clearly recognizable), and at a third volume that is louder than the second volume (for example, a volume that attracts the attention of the user and others) if it is in a very close area. Ring.

Further, the processor 31 of the beacon terminal 3 may output voice guidance (message) according to the distance to the beacon 2. For example, when the beacon terminal 3 exists in a region far from the beacon 2, the voice unit 37 may output a voice informing that the user is in a safe position. Further, when the beacon terminal 3 exists in a region close to the beacon 2, the voice unit 37 may output a voice informing that "there is a dangerous place nearby". When the beacon terminal 3 is located in an area very close to the beacon 2, the voice unit 37 may say "a dangerous place is approaching" or "if it continues as it is, it may fall or collide with a dangerous place". The guidance voice may be output.

In the form of outputting such voice guidance, various voice guidances corresponding to the distance from the beacon 2 (each area) are stored in advance in the storage unit 34 of the beacon terminal 3, and the distance from the beacon 2 (beacon 2). This can be realized by outputting the voice guidance according to the strength of the radio wave received from the voice unit 37 from the voice unit 37.

Further, when the distance to the beacon 2 is determined, the processor 31 controls the light output by the light emitting unit 36 according to the distance to the beacon 2 (the strength of the received radio wave) (S24). The closer the distance to the beacon 2 is, the closer the processor 31 of the beacon terminal 3 is, the more the light emitting unit 36 outputs an alarm by light for notifying that it is dangerous. For example, the processor 31 lights a light (for example, blue light) indicating that the beacon terminal 3 is in a safe position when it exists in a distant area, and needs to be careful when it exists in a near area. Light that indicates that the position is in a certain position (for example, yellow light), and if it is in a very close area, light that indicates that it is in a position that requires action to avoid a dangerous place (for example, red light). Turn on.

When the radio wave from the beacon 2 is received, the processor 31 of the beacon terminal 3 transmits a radio wave as a response signal to the beacon 2 which is the source of the radio wave (S25). The processor 31 transmits a radio wave as a response signal including the identification information (ID) of the beacon terminal 3 by the beacon communication unit 35.

By the above operation, the warning system including the beacon and the beacon terminal outputs an alarm such as an alarm sound when the beacon terminal carried by the user approaches the beacon installed in the dangerous place in the station yard. As a result, the user carrying the beacon terminal can recognize by an alarm that he / she has approached a dangerous place in the station yard. In addition, the beacon terminal sounds a large alarm when approaching a dangerous place where a beacon is installed, and reduces the alarm when moving away. As a result, the user carrying the beacon terminal can know by sound whether he / she is approaching or away from a dangerous place such as the home edge.

In addition, the beacon determines the situation inside the station based on information obtained from an external system, and stops transmitting radio waves according to the situation inside the station to stop the output of an alarm from the beacon terminal. As a result, the alarm system can provide the user with an alarm according to the situation. For example, when a train stopped at the platform is in a situation where it is possible to get on and off, the beacon installed at the end of the platform stops transmitting radio waves, so that the beacon terminal carried by the user who gets on the train outputs an alarm such as an alarm. Can be prevented.

Next, the operation of the monitoring device 4 will be described.
FIG. 9 is a flowchart for explaining an operation example of the monitoring device 4.
The processor 41 of the monitoring device 4 receives position information indicating the position of the beacon terminal 3 from each beacon 2 at any time (S31). As described above, the position information of the beacon terminal 3 is information indicating the installation position of the beacon 2 that has received the response from the beacon terminal 3, the ID of the beacon terminal 3 that has sent the response, and the response from the beacon 2 that has received the response. This is information including information indicating the distance to the transmitted beacon terminal 3.

When the position information of the beacon terminal 3 is received from the beacon 2 (S31, YES), the processor 41 determines whether or not the ID of the beacon terminal included in the received position information is the ID of the beacon terminal 3 being monitored. It is determined whether or not the received position information is the position information of the beacon terminal being monitored (S32). In the present embodiment, the monitoring device 4 continuously monitors the position of each beacon terminal 3 for which each beacon 2 has received a response, and causes the display device 5 to display information indicating the position of the beacon terminal 3 being monitored. And.

When it is determined that the received position information is not the position information of the beacon terminal 3 being monitored (S32, NO), the processor 41 stores the ID of the beacon terminal included in the position information as the ID of the beacon terminal 3 to be monitored. It is stored in the unit 44 (S33). For example, the processor 41 stores the ID included in the received position information in the storage unit 44 (or RAM 43) as the ID of the beacon terminal to be newly monitored.

When the ID of the beacon terminal is stored in the storage unit 44 as a new monitoring target, the processor 41 determines the position of the beacon terminal 3 in the station yard based on the received position information (S34). For example, the processor 41 determines the position of the beacon terminal 3 (the area where the beacon terminal 3 exists) in the station yard based on the installation position of the beacon 2 that received the response and the distance from the beacon 2 to the beacon terminal 3. .. When the position of the beacon terminal 3 is determined, the processor 41 stores the information indicating the position (area) in which the determined beacon terminal exists in the storage unit 44 in association with the ID of the beacon terminal 3 set as the monitoring target (). S35).

When the position of the beacon terminal set as the monitoring target is stored, the processor 41 displays the information indicating the position of the beacon terminal 3 on the display device 5 (S36). For example, the processor 41 displays the position (area) where the beacon terminal 3 exists on the map showing the station yard (home). Further, the processor 41 may display the position (area) of the beacon terminal 3 as coordinate values. Further, the processor 41 may display the guidance indicating that the beacon terminal 3 has been newly detected on the display device 5 together with the information indicating the position of the beacon terminal 3.

When it is determined that the position information of the beacon terminal being monitored has been received (S32, YES), the processor 41 determines the position of the beacon terminal 3 based on the position information received from each beacon 2 (S37). ). In the present embodiment, as shown in FIG. 6, the communication area of each beacon 2 is installed so as to overlap the communication area of the adjacent beacon. Therefore, when the beacon terminal 3 is located at a position where the communication areas of the plurality of beacons 2 overlap, the monitoring device 4 acquires the position information of the beacon terminal 3 from the plurality of beacons 2 and the position information acquired from the plurality of beacons. The position (area) where the beacon terminal is located is determined based on.

That is, when receiving position information including the ID of the same beacon terminal from a plurality of beacons 2, the processor 41 determines the position of the beacon terminal 3 of the ID based on the position information from each beacon 2. For example, when the position information including the same ID is received from the first beacon and the second beacon, the processor 41 uses the region specified by the position information from the first beacon and the position from the second beacon. The area that overlaps with the area specified by the information is determined to be the position (area) where the beacon terminal of the ID is located.

When the position of the beacon terminal 3 being monitored is determined, the processor 41 updates the information indicating the position of the beacon terminal stored in the storage unit 44 in association with the ID of the beacon terminal (S38). When the position of the beacon terminal stored in the storage unit 44 is updated, the processor 41 updates the display position of the beacon terminal displayed on the display device 5 (S39). When updating the display position of the beacon terminal being monitored, the processor 41 not only updates the display position of the beacon terminal, but also displays the movement status of the beacon terminal (movement direction from the position before the update, etc.). You may try to do it.

Further, the processor 41 monitors the time during which the undetected state continues for each beacon terminal 3 being monitored based on the position information from each beacon 2 (S40). When each beacon 2 cannot receive the response from the beacon terminal 3 being monitored (that is, when the position information of the beacon terminal being monitored cannot be received from the beacon 2), the processor 41 has not yet received the beacon terminal 3. Judge that it is in the detection state.

That is, when the position information of the beacon terminal 3 being monitored cannot be acquired from any beacon 2 for a predetermined time or more, the processor 41 determines that the beacon terminal 3 is deleted from the monitoring target. When it is determined that a certain beacon terminal 3 is to be deleted from the monitoring target (S40, YES), the processor 41 deletes the ID of the beacon terminal 3 stored in the storage unit 44 as a monitoring target (S41), and the display device 5 determines. The display of the position of the beacon terminal 3 is deleted (S42).

As described above, the alarm system according to the present embodiment includes a beacon, a beacon terminal, and a monitoring device. The beacon terminal outputs an alarm when approaching the beacon. The beacon notifies the monitoring device of the position information of the beacon terminal in the communication area. The monitoring device determines the position of the beacon terminal based on the position information of the beacon terminal acquired from the beacon, and displays the information indicating the position of the beacon terminal on the display device.
Thereby, according to the embodiment, the position of the beacon terminal (the user who carries the beacon terminal) in the station yard can be displayed on the display device. As a result, the station clerk can monitor the position or movement of the user carrying the beacon terminal in the station yard by the information displayed on the display device.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.
Hereinafter, the contents described in the scope of claims at the time of filing the application of the present application will be added.
[1]
Beacon terminal that can be carried by users of the station
A communication unit that receives radio waves transmitted from a dangerous place or a beacon placed around the dangerous place in the station yard,
A determination unit that determines the distance to the beacon that is the source of the radio wave based on the strength of the radio wave received by the communication unit.
A voice unit that emits a sound according to the distance to the beacon determined by the determination unit, and
Beacon terminal with.
[2]
The voice unit sounds a loud alarm as the distance to the beacon determined by the determination unit becomes shorter.
The beacon terminal according to [1].
[3]
The voice unit outputs voice guidance according to the distance to the beacon determined by the determination unit.
The beacon terminal according to [1].
[4]
Further, it has a light emitting unit that emits light according to the distance to the beacon determined by the determination unit.
The beacon terminal according to any one of [1] to [3].
[5]
An alarm system having a plurality of beacons arranged in a dangerous place or around a dangerous place in a station yard and a beacon terminal portable to a user who uses the station.
Each of the above beacons
It has a first communication unit that emits radio waves that can be received by the beacon terminal within a predetermined communication area.
The beacon terminal
The second communication unit that receives the radio waves transmitted by the beacon in the communication area of each beacon,
A determination unit that determines the distance to the beacon that is the source of the radio wave based on the strength of the radio wave received by the second communication unit.
It has an audio unit that emits a sound according to the distance to the beacon of the source of the radio wave determined by the determination unit.
Alarm system.
[6]
The beacon is
A situation determination unit that determines whether or not an alarm should be output to a user approaching the beacon,
When the situation determination unit determines that the alarm should not be output to the user, the first communication unit stops transmitting radio waves, and the situation determination unit determines that the alarm should be output to the user. If so, it has a control unit that transmits radio waves by the first communication unit.
The alarm system according to [5].
[7]
An alarm system with a monitoring device
Each of the beacons further has a third communication unit that transmits the position information of the beacon terminal that is the source of the radio wave received by the first communication unit to the monitoring device.
The monitoring device is
A third communication unit that receives the position information of the beacon terminal from each beacon, and
A position determination unit that determines the position of the beacon terminal in the station yard based on the position information of the beacon terminal received from each beacon by the third communication unit.
It has a display control unit that displays the position of the beacon terminal determined by the position determination unit on the display device.
The alarm system according to any one of [5] and [6].

1 ... Warning system, 2 ... Beacon, 3 ... Beacon terminal, 4 ... Monitoring device, 5 ... Display device, 21 ... Processor, 24 ... Storage unit, 25 ... Beacon communication unit, 26 ... Communication unit, 31 ... Processor, 34 ... Storage unit, 35 ... Beacon communication unit, 36 ... Light emitting unit, 37 ... Voice unit, 41 ... Processor, 44 ... Storage unit, 45 ... First communication unit, 46 ... Second communication unit.

Claims (5)

An alarm system having a plurality of beacons arranged in a dangerous place or around a dangerous place in a station yard and a beacon terminal portable to a user who uses the station.
Each of the above beacons
A first communication unit that emits radio waves that can be received by the beacon terminal within a predetermined communication area, and
A situation determination unit that determines whether or not an alarm should be output to a user approaching the beacon,
When the situation determination unit determines that the alarm should not be output to the user, the first communication unit stops transmitting radio waves, and the situation determination unit determines that the alarm should be output to the user. If so, it has a control unit that transmits radio waves by the first communication unit .
The beacon terminal
The second communication unit that receives the radio waves transmitted by the beacon in the communication area of each beacon,
A determination unit that determines the distance to the beacon that is the source of the radio wave based on the strength of the radio wave received by the second communication unit.
It has an audio unit that emits a sound according to the distance to the beacon of the source of the radio wave determined by the determination unit.
Alarm system. An alarm system with a monitoring device
Each of the beacons further has a third communication unit that transmits the position information of the beacon terminal that is the source of the radio wave received by the first communication unit to the monitoring device.
The monitoring device is
A third communication unit that receives the position information of the beacon terminal from each beacon, and
A position determination unit that determines the position of the beacon terminal in the station yard based on the position information of the beacon terminal received from each beacon by the third communication unit.
It has a display control unit that displays the position of the beacon terminal determined by the position determination unit on the display device.
The alarm system according to claim 1. The voice unit of the beacon terminal sounds a loud alarm as the distance to the beacon determined by the determination unit is shorter.
The alarm system according to any one of claims 1 or 2 . The voice unit of the beacon terminal outputs voice guidance according to the distance to the beacon determined by the determination unit.
The alarm system according to any one of claims 1 or 2 . The beacon terminal further has a light emitting unit that emits light according to the distance to the beacon determined by the determination unit.
The alarm system according to any one of claims 1 to 4 .

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