KR102264040B1 - A method for controlling the apparatus for broadcasting emergency circumstances - Google Patents

Abstract

The present invention provides an apparatus for broadcasting emergency evacuation in which a display unit for indicating an evacuation route and a speaker for emergency broadcasting are installed at the same time and the display unit is selectively opened and closed, and the present invention relates to a terminal device for emergency evacuation broadcasting, in which an audio signal input through the speaker line is broadcast during normal times, and evacuation guide visual information and the voice signal for the evacuation information, upon emergency, are transmitted from a server and outputted audiovisually. The apparatus includes: a voice broadcasting speaker unit partially or entirely buried in the wall or ceiling or at least partially covered with a finishing material to broadcast the input audio signal; a display unit folded to cover at least the part of the speaker unit to display visual information upon outputting the guide information visually; an opening/closing means for opening and closing the display unit; an audio connection means for connection with the speaker line; and a communication module for transmitting and receiving, with the server, visual information data or external TTS audio broadcasting information to be displayed when a problem occurs in a speaker line, wherein the audio information is audibly output through the speaker unit in normal times, and, upon emergency, the visual information data is visually output to the display unit while outputting voice broadcast information received through the speaker line or the communication module to the speaker unit.

Description

Control method of a terminal device for emergency evacuation broadcasting {A method for controlling the apparatus for broadcasting emergency circumstances}

The present invention relates to a terminal device for an emergency evacuation broadcast that is normally used as a public address speaker, but performs an evacuation broadcast according to an emergency situation in an emergency situation. It also provides a control method of a terminal device for emergency evacuation broadcasting that broadcasts a disaster broadcast from a control device.

A conventional speaker for disaster broadcasting usually operates as, for example, a public address speaker, but when a disaster such as an earthquake, tsunami, or fire occurs, disaster broadcasting is performed according to a predetermined program or a central control device.

Meanwhile, in some cases, a more advanced disaster response system visually guides an evacuation route along with a disaster evacuation broadcast, and is generally performed through a speaker and a separate display device.

On the other hand, as shown in FIG. 1, in the case of Patent No. 1261448 (intelligent evacuation guidance system and its control method) employing an intelligent evacuation guidance system, a fire detection unit ( 1) and a control unit 5 that generates an evacuation route avoiding the location of the fire detected by the fire detection unit 1 and generates a light emitting signal of the following direction indicating unit 10 according to this, and the control unit and a direction indicating unit 10 that receives and displays the light emission signal from (5) and is installed along a moving path in space.

The fire detection unit 1 may be a monitoring device such as a fire detector, a fire detection camera, or a fire receiver, and a combination of the wind vane 8 and the gas recognition sensor 9 may be used.

As shown in Figs. 1 and 2, the direction indicating unit 10 includes a wireless communication unit 11 for receiving the light emitting signal, and a light emitting unit displaying an evacuation direction on a moving path in space according to the light emitting signal ( 12), a power supply unit 16 for supplying power to the light emitting unit 12, and a solar cell provided on the exposed surface of the direction indicating unit 10 to receive energy from indoor lighting and store it in the power supply unit and (17), wherein the light emitting part (12) has a variable shape of a turn signal lamp.

According to the first prior art, there is a certain advantage that, when a fire occurs, people in a space can evacuate through the shortest route by avoiding the location of the fire, but it is separate from an alarm device such as a broadcast speaker that must be installed. The display device of the direction indicating unit 10 is used, and furthermore, it has to be installed separately from the fire detection unit 1, so there is a limit that the efficiency is lowered.

On the other hand, Korean Patent No. 1583586 is disclosed for "real-time disaster response location identification and evacuation route guidance solution", which will be described as a second prior art with reference to FIGS. 3 to 6 .

The evacuation route guidance system according to the second prior art includes a user terminal 100 and a control server.

The user terminal 100 generates current location information and functions to transmit the generated location information to a control server. Meanwhile, in this case, the user terminal 100 is a terminal that a user can carry inside a building, and refers to a device capable of connecting to a network and capable of transmitting and receiving data with an external device, for example, an external server. Preferably, the user terminal 100 is capable of mobile communication, and may be a device that a user can carry inside a building, such as a smartphone, a wearable device, a tablet PC, or a laptop PC. The user terminal 100 may acquire direction information and distance information using its own geomagnetic sensor and acceleration sensor, and further receives beacon information from the beacon 300 installed in various places inside the building to receive final location information. can be used to create

On the other hand, the control server receives the location information from the user terminal 100, calculates the evacuation route to the nearest exit 400 to the received location information, and performs a function of providing it to the user terminal 100.

It is premised that the control server pre-stores building information in the internal database, and the building information includes a building drawing, identification information for each terminal of the beacon 300 installed in the building, and the installation location and exit location of the beacon 300. etc. may be included.

In addition, the control server may transmit an application for evacuation route guidance to the user terminal 100 to induce the user terminal 100 to install it, and each user terminal 100 through a dedicated application installed in the user terminal 100 . ) of terminal information and user information, and after registration in the control server, it can be used for member management or to locate missing persons.

3 is a building plan view showing a location where a plurality of beacons 300 are installed and a location of an exit 400 that can be evacuated to the outside of the building. It may be installed, and the installation location may be various such as a wall, a ceiling, a floor, and the like. The beacon 300 requires a module capable of wirelessly transmitting and receiving data to and from the user terminal 100, for example, Bluetooth, Wi-Fi, infrared communication, etc. and the user terminal 100 and data at a predetermined interval. You need to be able to give and receive.

Meanwhile, the installed beacon 300 may have identification information such as a terminal serial number for each device, and the control server matches the identification information with the location where the beacon 300 is installed and stores it in the database.

On the other hand, the control server assigns a serial number to the exits 400 existing in the building in the same manner as the beacon 300 , matches the location of each exit 400 and stores it in the database.

In the installation environment inside the building as described above, the method for the control server to provide an evacuation route to the user terminal 100, as shown in FIG. 4, first receives the location information from the user terminal 100 (S110) it starts with That is, the user terminal 100 carried by the user may periodically notify the location information of each user terminal 100 by transmitting the current location information in the building to the control server.

Data communication between the user terminal 100 and the control server may be preferably achieved through a wireless network, for example, a mobile communication network, a local area network, etc. In particular, the control server is provided with an evacuation route guidance service function in the user terminal 100 By providing the applied application, it can be implemented so that the user can use the service more easily through the application.

On the other hand, after step S110, the control server searches for an exit 400 in the building (S130). That is, the control server searches for the exit 400 in the building with reference to the building information stored in the database.

Thereafter, the control server calculates an evacuation route, such as a movement route and a movement distance, for the searched exits 400 , and specifies the exit 400 to be used by the user based on the calculation result. (S150) Specifically, the control server calculates the moving distance from the location of the user terminal 100 to each exit 400, that is, the distance to the exit 400 on the movable area within the building, and each exit 400 After comparing the distances to , the nearest exit 400 (exit 3 in FIG. 3 ) is specified. The movable area refers to the building information stored internally by the control server, for example, the area where the user can actually move in the floor plan of the building is set in advance. By distinguishing the space from the other space in advance, it is possible to prevent the calculation of the evacuation route in a place where the user cannot exist in the first place.

On the other hand, the control server can be implemented to calculate the moving distance to a plurality of exits by searching not only for the nearest exit but also for an exit up to a specific priority or an exit within a preset distance.

Finally, after the operation process up to step S150, the control server provides the evacuation route to the finally specified exit 400 to the user terminal 100 (S170). In this case, the control server may utilize a dedicated application installed in the user terminal 100 . That is, the control server can transmit escape information such as the exit specified according to the calculation to the user terminal 100, the movement path to the exit, the movement distance, and the like, and the user terminal 100 is stored in the user terminal 100 together with the application. By using the building drawing image, the received escape information may be applied and output on the display.

Alternatively, the control server may be implemented in a way that generates an image to be output on the user terminal 100 based on the escape information and directly transmits it to the user terminal 100 side.

Hereinafter, with reference to FIGS. 5 and 6 , the process of obtaining the current location information in the building by the user terminal 100 will be described. The location information that the control server receives from the user terminal 100 is basically the user terminal As generated in 100, the user terminal 100 collects a plurality of information through various sensors provided internally, and is generated based on the collected information.

According to the second prior art, when the user terminal 100 generates location information, two or more pieces of information can be collected and utilized. Among them, direction information, distance information, or beacon information can be used in particular.

The user terminal 100 may obtain direction information and distance information according to the movement of the user terminal 100 by using an internally provided geomagnetic sensor and acceleration sensor (S310). The geomagnetic sensor is a sensor that detects the earth's magnetic field, and is a sensor that can directly detect the direction of the earth's magnetism. The acceleration sensor is a sensor that measures the acceleration strength of the moving user terminal 100, and the user terminal 100 is a force from the outside. It refers to a sensor that can detect the displacement by converting it into an electric signal when it moves.

Looking at an example in which the user terminal 100 acquires direction information and distance information, first, the user terminal 100 recognizes that the user has entered the building and initializes the geomagnetic sensor and the acceleration sensor to generate reference points for each sensor. . At this time, the user terminal 100 may be initialized by receiving beacon information from the beacon 300 installed at the entrance of the building and recognizing the initialization command included in the beacon information.

On the other hand, the user terminal 100 may acquire the direction and distance information in which the user terminal 100 moved based on the reference point generated in the initialization step from each sensor, and location information based on the information obtained in this way can create

On the other hand, the user terminal 100 may generate location information by receiving beacon information from a plurality of beacons 300 installed inside a building.

As described above, a plurality of beacons 300 capable of wirelessly transmitting and receiving data with the user terminal 100 may be installed inside the building, and when the user terminal 100 passes around the beacon 300 , the beacon 300 may provide beacon information to the user terminal 100 . The above beacon information may include, for example, a serial number assigned to each beacon 300 and an installation location of the beacon 300 expressed in a coordinate format.

On the other hand, the user terminal 100 may receive beacon information from a plurality of beacons 300 when moving inside the building (S320), and in this case, the user terminal 100 receives the beacon information. Network with each beacon 300 It is possible to detect channel reception sensitivity, that is, signal strength, and specify (S330) the beacon 300 having the strongest signal among them, and refer only to the beacon information received from the specified beacon 300 for generating location information (S340).

Also, the user terminal 100 may recognize the distance between the beacon 300 and the user terminal 100 based on the previously sensed signal strength. That is, according to the second prior art, the user terminal 100 can sense the signal strength when transmitting and receiving data with the beacon 300 . The strength of the detected signal strength is proportional to the distance from the beacon 300 . As it shows a decreasing tendency, the user terminal 100 may obtain the distance between the two devices by converting the network channel reception sensitivity, ie, signal strength, with the beacon 300 into distance information.

5 is a diagram schematically illustrating a state in which the user terminal 100 generates a plurality of beacons 300 and a network channel to receive beacon information. As shown in FIG. 5 , signals generated from each beacon 300 may be detected with different signal levels according to a distance from the user terminal 100 . Specifically, each beacon information may be received with a signal strength of -94 dB from the beacon A 300, a signal strength of -32 dB from the beacon B 300, and a signal strength of -12 dB from the beacon C 300, , in this case, the user terminal 100 may generate location information with reference to the beacon information received from the C beacon 300 having the strongest signal strength, or the installation location included in the beacon information.

On the other hand, the user terminal 100 may generate accurate location information by referring to all three pieces of information described above, that is, direction information, distance information, and beacon information. That is, the user terminal 100 may generate location information based on direction information and distance information, but may further refer to the installation location included in the beacon information in order to reduce an error. In this way, the user terminal 100 may more accurately acquire current location information inside the building by using direction information, distance information, and beacon information ( S350 ).

Meanwhile, the location information generated according to the above series of processes is transmitted to the control server (S360), and is utilized for the evacuation route providing service described with reference to FIGS. 3 to 4 .

Certainly, in the second prior art, a more advanced evacuation route provision service is possible by utilizing beacon information compared to the first prior art. However, there is a problem that the situation in which the evacuation route is closed by smoke or flame cannot be considered at all.

On the other hand, in order to solve the problems of the second prior art, Republic of Korea Patent No. 2124097, entitled "Smart Evacuation Route Guidance System and Method Based on Real-Time Smoke and Flame Detection," has been developed, which is shown in Figs. 11, it will be described as a third prior art.

The smart evacuation route guidance system 100 based on real-time smoke and flame detection according to the third prior art includes an Internet of Things (IoT) sensor 110, a smoke diffusion and evacuation route prediction unit 120, and a smart evacuation route guide unit ( 130) and the occupant's smart phone 140, and may be installed in a high-rise building or a large-scale complex 200, and the like.

The smart evacuation route guidance system 100 based on real-time smoke and flame detection according to the third prior art is detected by a plurality of Internet of Things (IoT) sensors 110 installed inside when a fire occurs in a high-rise building or large-scale complex 200 According to the smoke or flame, the smoke diffusion and evacuation route prediction unit 120 predicts the smoke spread and the evacuation route in real time, and the smart evacuation route guide unit 130 guides the occupants to the evacuation route, thereby reducing casualties through rapid evacuation. have.

At this time, it is possible to quickly and accurately detect smoke and flames through various IoT sensors 110, and the smoke diffusion and evacuation route prediction unit 120 is to be closed in the near future in connection with building information model (BIM) information in the event of a fire. After determining the subsequent closed evacuation route, the smart evacuation route guide unit 130 may determine a real-time evacuation route over time and guide the occupants to the optimal evacuation route along with the evacuation time through the occupant smartphone 140 .

Meanwhile, FIG. 7 is a configuration diagram of a smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art.

Referring to FIG. 7 , the smart evacuation route guidance system 100 based on real-time smoke and flame detection according to the third prior art includes an Internet of Things (IoT) sensor 110, a smoke diffusion and evacuation route prediction unit 120, It includes a smart evacuation route guide unit 130, occupant smart phone 140, and an evacuation route display unit 150, wherein the smoke diffusion and evacuation route prediction unit 120 and the smart evacuation route guide unit 130 are located in the control room. It may be integrated into a terminal, and may be installed in a high-rise building or a large complex facility 200 . Here, the smart evacuation route guide unit 130 includes an occupant location determining unit 131 , an evacuation time calculation unit 132 , an evacuation route determining unit 133 , and an evacuation route providing unit 134 .

The Internet of Things (IoT) sensor 110 is installed in various forms to quickly and accurately detect smoke and flames when a fire occurs in a high-rise building or large-scale complex 200, and transmits the detection data through the IoT communication network. It is transmitted to the evacuation route prediction unit 120 . The Internet of Things (IoT) sensor 110 in the smart evacuation route guidance system 100 based on real-time smoke and flame detection according to the third prior art, as shown in FIG. 9A to be described later, includes at least one measurement sensor, Consists of a power supply device and an IoT network communication device, and each Internet of Things (IoT) sensor (110a~110n) is given a unique identification number, and each floor (200-1~) of the high-rise building or large complex facility 200 200-n) in each division.

The smoke diffusion and evacuation route prediction unit 120 collects and analyzes smoke and flame detection signals from the plurality of IoT sensors 110 by wire or wirelessly, and at this time, in connection with building information model (BIM) information, in the near future Acquire information on evacuation routes to be closed, predict smoke and flame spread paths, and determine subsequent closed evacuation routes over time in real time.

The smart evacuation route guide 130 individually identifies the occupant's location using the occupant's smart phone 140, determines a real-time evacuation route in consideration of the evacuation route to be subsequently closed over time, calculates the evacuation time, and then calculates the occupant smart An optimal evacuation route is provided to each occupant through the phone 140 . In addition, the smart evacuation route guide unit 130 may apply a vehicle route guidance navigation system to guide the occupants of the evacuation route in real time through the occupant's smart phone 140 . For example, an evacuation route guidance navigation application may be executed through the link of the disaster guidance text message transmitted by the smart evacuation route guide unit 130, and an evacuation route may be guided like a car navigation system.

Specifically, the occupant location determining unit 131 of the smart evacuation route guide unit 130 individually identifies the occupant's location using the occupant's smart phone 140. In this case, the precise occupant location tracking includes a GPS (Global Positioning System) , various technologies including WiFi Positioning System (WPS) or Global Navigation Satellite System (GNSS) may be applied.

The evacuation time calculation unit 132 of the smart evacuation route guide unit 130 calculates the total evacuation time required to evacuate from the occupant position identified in real time to the evacuation exit.

The evacuation route determining unit 133 of the smart evacuation route guide unit 130 determines an optimal evacuation route in consideration of the evacuation time and information on an evacuation route to be closed in the near future.

The evacuation route providing unit 134 of the smart evacuation route guide unit 130 provides an optimal evacuation route to each occupant through the occupant's smart phone 140 .

Referring back to FIG. 7 , the occupant's smartphone 140 transmits the occupant's location in the skyscraper or large-scale complex 200, and then the smart evacuation through the vehicle route guidance navigation provided in the occupant's smartphone 140. Evacuation route guide information is received from the road guide unit 130 .

In addition, as a method of delivering an evacuation route to occupants, all means such as guidance lights, guidance signs, evacuation guide lines, broadcasting, and displays can be utilized. For example, the evacuation route display unit 150 guides the determined evacuation route, It may include guide lights and guide signs for spheres and passageways and evacuation guide lines.

Meanwhile, FIG. 8 is a detailed configuration diagram of the smoke diffusion and evacuation route prediction unit 120 in the smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art.

8, in the smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art, the smoke diffusion and evacuation route prediction unit 120 includes a data collection and processing unit 121, a database 122, The closed evacuation route setting unit 123, the BIM information extraction unit 124, the smoke and flame spread path prediction unit 125, the scenario-based diffusion result data extraction unit 126, and the subsequent closed evacuation path determination unit 127 include

First, the smoke diffusion and evacuation route prediction unit 120 first predicts the smoke and flame diffusion routes using a one-dimensional network model capable of fast analysis, etc., and fires using a Fire Dynamics Simulator (FDS) model or a zone model, etc. The subsequent closed evacuation route can be determined by secondary determination of the smoke and flame spread path through comparison with the scenario-based spread result data.

That is, the smoke diffusion and evacuation route prediction unit 120 collects and analyzes smoke and flame detection signals from the plurality of IoT sensors 110 through the IoT communication network, and the evacuation route is closed by the smoke and flames. A subsequent closed evacuation route can be determined taking into account.

Specifically, the data collection and processing unit 121 of the smoke diffusion and evacuation route prediction unit 120 collects and processes smoke and flame detection data from various Internet of Things (IoT) sensors 110 in real time.

The database 122 of the smoke diffusion and evacuation route prediction unit 120 stores BIM information of a high-rise building or large-scale complex 200 and diffusion result data based on a fire scenario.

The closed evacuation route setting unit 123 of the smoke diffusion and evacuation route prediction unit 120 sets a closed evacuation route in connection with the BIM information of the high-rise building or large-scale complex 200 when a fire occurs. In this case, the closed evacuation route setting unit 123 may consider a section determined by the data collection and processing unit 121 to have a specific smoke concentration or a specific temperature or higher as a closed evacuation route.

The BIM information extraction unit 124 of the smoke diffusion and evacuation route prediction unit 120 extracts the BIM information of the skyscraper or large-scale complex 200 stored in the database 122 . At this time, the BIM information extraction unit 124 preferentially extracts BIM information for the corresponding floor of the high-rise building or large-scale complex 200 where the fire occurred.

The smoke and flame spread path prediction unit 125 of the smoke diffusion and evacuation path prediction unit 120 first predicts the smoke and flame spread path using the BIM information and the sensed data in response to the lapse of time when a fire occurs. In addition, the second prediction of the smoke and flame spread path in the near future through comparison with the diffusion result data based on the fire scenario.

At this time, the smoke and flame spread path prediction unit 125 performs a quick analysis using a one-dimensional network model or the like. Here, the one-dimensional network model is a method of calculating the movement of heat and smoke in a simple way such as an electric circuit, and has the advantage of a fast calculation speed although the accuracy is low. In addition, the smoke and flame spread path prediction unit 125 secondarily predicts the diffusion path through comparison with the spread result data based on the fire scenario.

In addition, the smoke and flame spread path prediction unit 125 can predict the optimal diffusion path by secondarily predicting the smoke and flame spread path in the near future obtained as a result of engineering calculations, and also, in the case of a similar fire accident in the past It can also be predicted by referring to

The scenario-based diffusion result data extraction unit 126 of the smoke diffusion and evacuation route prediction unit 120 extracts diffusion result data based on a fire scenario using an FDS model or a zone model. Here, the diffusion result data based on the fire scenario is not a result of real-time calculation, but data obtained before the disaster, and big data such as building BIM information and fire risk assessment result can be used.

The subsequent closed evacuation route determining unit 127 of the smoke diffusion and evacuation route prediction unit 120 determines in real time a subsequent closed evacuation route to be closed over time in the near future. At this time, as described above, the subsequent closed evacuation route determining unit 127 regards a section having a specific smoke concentration or temperature or higher as a subsequent closed evacuation route by the data collection and processing unit 121 as described above. A section above a certain smoke concentration or temperature is considered as a subsequent closed evacuation route by the data collection and processing unit 121 .

Meanwhile, FIGS. 9A and 9B are diagrams for specifically explaining the IoT sensor in the smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art, respectively.

As shown in FIG. 9A , in the smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art, the IoT sensors 110a to 110n are connected to an IoT communication network using an IoT network communication device. Smoke that is installed in a plurality for each division on each floor (200-1 ~ 200-n) of the skyscraper or large complex facility 200, and is installed spaced apart from the skyscraper or large complex facility 200 It is transmitted to the diffusion and evacuation route prediction unit 120 . In addition, as shown in Figure 9b, the IoT sensor 110, for example, the Internet of Things (IoT) sensor 110 is a smoke detector 111, a pressure gauge 112, a temperature sensor 113 and It may include, but is not limited to, an evacuation exit opening/closing detection unit 114 . For example, the Internet of Things (IoT) sensor 110 may detect whether the fire door 210 is opened or closed when the fire door 210 is installed in a high-rise building or large-scale complex 200 .

Meanwhile, FIG. 10 is a plan view illustrating smoke diffusion in a smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art, and FIG. 11 is a real-time smoke and flame detection based on the third prior art. It is a plan view illustrating that the evacuation route determined by the smart evacuation route guidance system is displayed on the occupant's smartphone.

10, in the case of the smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art, whether smoke or flame is generated by a smoke detector, a pressure gauge, or a thermometer among the IoT sensors 110 In addition, the opening and closing of the evacuation gate is detected by the evacuation gate opening/closing sensor 114, and when a fire occurs in a high-rise building or large-scale complex 200, it indicates the direction of smoke and flame spread, at this time, the IoT sensor 110 ) will detect smoke and flame, predict the direction of smoke and flame spread, and evacuation route closure may be set accordingly.

11 shows that when a fire occurs in a high-rise building or large-scale complex 200, a subsequent evacuation route to be closed in the near future is determined according to the direction of smoke and flame spread, and a final evacuation route is determined over time to determine the occupant smartphone 140. This indicates that the evacuation route may be closed by the fire door 210 and that the evacuation route is predicted and provided in real time in consideration of the occupant's current location.

According to the third prior art, when a fire occurs in a high-rise building or a large-scale complex, the smoke spread and evacuation route are predicted in real time according to the smoke or flame detected by the IoT sensor 110 installed therein, and an evacuation route is provided to the occupants. By providing guidance, it is possible to reduce human casualties through rapid evacuation.

12 is an operation flowchart of a smart evacuation route guidance method based on real-time smoke and flame detection according to the third prior art.

Referring to FIG. 12 , the smart evacuation route guidance method based on real-time smoke and flame detection according to the third prior art is a smart evacuation route guidance based on real-time smoke and flame detection when a fire occurs in a high-rise building or large-scale complex 200 As a method, first, a plurality of IoT sensors 110 installed by division in a high-rise building or large-scale complex 200 detects smoke or flames (S110). In this case, the Internet of Things (IoT) sensor 110 may include a smoke detector 111 , a pressure gauge 112 , a temperature sensor 113 , and an evacuation door opening/closing detection unit 114 .

Next, the smoke diffusion and evacuation route prediction unit 120 extracts building information model (BIM) information about the skyscraper or large complex 200 , and analyzes the data detected by the IoT sensor 110 . to set a closed evacuation route associated with the BIM information (S120).

Next, the smoke diffusion and evacuation route prediction unit 120 first predicts the smoke and flame diffusion routes using a one-dimensional network model in connection with the BIM information (S130). Here, the smoke diffusion and evacuation route prediction unit 120 may first predict the smoke and flame diffusion routes using a one-dimensional network model capable of fast analysis.

Next, the smoke diffusion and evacuation route prediction unit 120 extracts and compares the fire scenario-based diffusion result data to secondarily predict the smoke and flame diffusion routes ( S140 ).

Next, the smoke diffusion and evacuation route prediction unit 120 determines a subsequent closed evacuation route according to the second predicted smoke and flame diffusion route (S150). Here, the smoke diffusion and evacuation route prediction unit 120 determines the second smoke and flame spread path through comparison with the diffusion result data based on the fire scenario using the FDS model or the zone model to determine the optimal evacuation route over time. can be decided in real time.

Next, the smart evacuation route guide 130 detects the occupant's location through the occupant's smart phone 140 in the high-rise building or large-scale complex 200 (S160).

Next, the smart evacuation route guide unit 130 determines the optimal evacuation route by calculating the total evacuation time required to evacuate from the occupant position identified in real time to the evacuation exit (S170).

Next, the smart evacuation route guide unit 130 provides an optimal evacuation route to each occupant through the occupant's smart phone 140 (S180).

Here, the smart evacuation route guide unit 130 includes: a occupant location determining unit 131 for individually identifying a occupant's location using the occupant's smart phone 140; an evacuation time calculation unit 132 that calculates the total evacuation time required to evacuate from the occupant position identified in real time to the evacuation exit; an evacuation route determining unit 133 that determines an optimal evacuation route in consideration of the evacuation time and information on an evacuation route to be closed in the near future; and an evacuation route providing unit 134 that provides an optimal evacuation route to each occupant through the occupant's smartphone 140 . In this case, the occupant position determining unit 131 may precisely track the occupant position using GPS, WPS, or GNSS. In addition, the smart evacuation route guide unit 130 guides the evacuation route to the occupants in real time through the occupant smartphone 140 by applying the vehicle route guidance navigation system, but guides the evacuation route through the link of the transmitted disaster guidance text message. A navigation application may be executed to guide an evacuation route.

In addition, the real-time evacuation route determined by the smart evacuation route guide unit 130 can be displayed in real time through the evacuation route display unit 150 so that the occupants of each section of the skyscraper or large-scale complex 200 can check it, at this time, The evacuation route display unit 150 may include a guide light for an evacuation port and a passageway, a guide sign, and an evacuation guide line.

According to the third prior art, when a fire occurs in a high-rise building or a large complex, the smoke spread and evacuation route are predicted in real time according to the smoke or flames detected by the Internet of Things (IoT) sensors installed inside a number of evacuation routes through the occupant’s smart phone. can guide the evacuation route in real time, determine the evacuation time according to the location of the occupants in real time, determine the optimal evacuation route according to the real-time closed evacuation route, and guide the evacuation route. It can detect and predict the distribution of flames and guide the occupants to the optimal evacuation route. In addition, it is possible to quickly and accurately make a decision in case of a fire by predicting the flame and smoke diffusion path, and to provide information useful for firefighting activities.

However, like the second prior art, the third prior art also has to use a separate terminal such as a smart phone, so it is impossible to provide a service to anyone, and even for the terminal owner, if there is a certain amount of time, the effectiveness will be reduced. However, especially in the case of a disaster in the basement or at night, if the lights are turned off due to fire, etc., in the dark, the current location or direction is not known at all. No matter how accurate an evacuation route is provided with a terminal such as a smartphone, accurate and immediate evacuation likely not to help.

Moreover, even if the evacuation route is guided by a display device other than a smart phone in both the first to third prior arts, when the evacuation route display unit is composed of various sensors and emergency broadcasting speakers and separate devices, the efficiency is lowered, so There is a problem that there is a limit to the application to buildings.

Above all, the prior art is focused on providing an objective and optimal evacuation route for each individual, and cannot even consider a dynamic situation in which occupants are driven to one side, and countermeasures are required for this.

Korean Patent No. 1261448 (Title: Intelligent Evacuation Guidance System and its Control Method) Korean Patent No. 1583586 (Name: Real-time disaster response location identification and evacuation route guidance solution) Korean Patent No. 2124097 (Title: Smart Evacuation Route Guidance System and Method Based on Real-Time Smoke and Flame Detection)

The present invention is to solve the problems of the first to third prior art, and to provide a terminal device for an emergency evacuation broadcast in which a display unit for displaying an evacuation route and a speaker for emergency broadcasting are mounted at the same time, and the display unit can be selectively opened and closed it is for

In addition, it is to provide a terminal device for emergency evacuation broadcasting in which various sensors for counting disaster situations and especially occupants are integrally mounted.

In addition, without using a separate communication terminal such as a smartphone, it is possible to count abnormal disaster situations and occupants only with the terminal device itself, and to provide an emergency evacuation broadcast terminal device that can help accurate and immediate evacuation. .

Above all, it is intended to provide a control method for an emergency evacuation broadcast terminal device that even considers distributed evacuation so that the evacuation situation of the occupants is dynamically grasped, and the situation where the occupants are evacuated to one side is prevented in advance.

In order to achieve the above object, the control method of a terminal device for emergency evacuation broadcasting according to an aspect of the present invention broadcasts an audio signal input through a speaker line in normal times and evacuation guidance time information from the server 100 in an emergency and It is a terminal device for emergency evacuation broadcasting that receives a voice signal for evacuation information and outputs it audio-visually. A voice broadcasting that broadcasts an incoming audio signal that is partially or entirely buried in a wall or ceiling or at least partially covered with a finishing material speaker unit 210; a display unit 270 that is folded to cover at least a portion of the speaker unit 210 and is unfolded to display visual information when it is desired to visually output guide information; opening/closing means (271, 272) for opening and closing the display unit (270); audio connection means (250, 260) for connection with the speaker line; a communication module 240 for transmitting and receiving visual information data to be displayed or external TTS audio broadcasting information to and from the server when a problem occurs in the speaker line; and a sensor unit 290 for sensing and transmitting personnel information data and internal disaster information for each floor and each room to the server 100; It includes, and transmits various sensor information sensed by the sensor unit 290 to the server 100 in an Ethernet or Power over Ethernet (PoE) method through the communication module 240 or through the speaker line, , while outputting audio information audibly through the speaker unit 210 in normal times, and outputting audio broadcasting information received through the speaker line or the communication module 240 through the speaker line or the communication module 240 to the speaker unit 210 at the same time A control method of an emergency evacuation broadcast terminal device for visually outputting the visual information data to the display unit (270), comprising: (a) identifying the number of occupants in each predetermined area (S10); (b) After step (a), have you received external disaster data such as an external fire or earthquake from the server 100? determining whether or not (S11); (c) as a result of the determination in step (b), if external disaster data is not received, determining whether an internal fire has occurred (S12, S13); (d) If, as a result of the determination in step (c), there is no internal fire, has display data been received from the server 100? determining whether or not (S14); (e) as a result of the determination in step (d), if not received, returning to the first and repeatedly performing, and if received, displaying the received data with a speaker and an electric sign (S15); (f) as a result of the determination in step (c), in the case of an internal fire, transmitting the fire occurrence and personnel information in the corresponding area to the server 100 and performing subsequent processing; and (g) if the disaster data is received as a result of the determination in step (b), transmitting the personnel information of the corresponding area to the server 100 and performing subsequent processing; It is characterized in that it includes.

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More preferably, the sensor unit 290 includes a BLE search sensor 293 that collects Mac address and Received signal strength indication (RSSI) information data of the resident's BLE card, a temperature sensor 292, and It is characterized in that it comprises a mmWave sensor (291) that collects real-time movement and location data to sense the location and occupancy.

Also preferably, the sensor unit 290 includes, in addition to the sensors built into the terminal device, an external sensor such as a Time of Flight (TOF) sensor 900 that counts the number of people when passing through the door, indoor and outdoor. It is characterized in that it is possible to collect information on the number of people entering and leaving.

Also preferably, when the speaker line is normal, the amplifier module 250 for exchanging an audio signal with the server 100; and a connection port 260 for connection with a terminal device of the next stage; It is characterized in that it further comprises.

Also preferably, a speaker selector 220 connected to the server side; and a line checker 230 for checking whether a problem such as disconnection or short circuit of the speaker line occurs, and transmitting it to the server when a problem occurs in the speaker line; It is characterized in that it further comprises.

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Preferably, in step (c), did (c1) check the temperature state of the installation area through the temperature sensor 292, and did the ambient temperature exceed the reference value? Steps (S12) and (c2) of checking whether the amount of smoke in the air exceeds the standard value? It is characterized in that the duplicate check is performed in the step (S13) of checking whether or not.

Also preferably, in step (f), (f1) after transmitting the fire occurrence and personnel information in the corresponding area to the server 100, the terminal device determines whether or not there are occupants in the corresponding area. Check again (S21), (f2), and if it is determined that there are no more occupants in the area as a result of the judgment in step (f1), a simple internal fire announcement is made and the fire guide text is displayed on the electronic board. (S22, S23), (f3) If, as a result of the determination in step (f1), it is determined that there are occupants in the corresponding area, the actual evacuation broadcast is performed while displaying the fire evacuation route (S24, S25) ) is characterized.

Also preferably, in the step (g), (g1) after transmitting the personnel information to the server 100, the terminal device checks again whether there are occupants in the corresponding area (S31) , (g2) If, as a result of the determination in step (g1), it is determined that there are no more occupants in the relevant area, a simple external disaster information broadcast is performed and the text message is displayed on the electronic display board (S32, S33) ), (g3) when it is determined that there are occupants in the corresponding area as a result of the determination in step (g1), displaying the evacuation route while broadcasting an evacuation corresponding to an actual external disaster (S34, S35) characterized.

According to the terminal device for emergency evacuation broadcasting and the control method thereof according to the present invention, a display unit for displaying an evacuation route and a speaker for emergency broadcasting are simultaneously mounted on each terminal device for emergency evacuation broadcasting, and the display unit can be selectively opened and closed. It is used as a general public address speaker, but in an emergency situation, the display unit is deployed to display an evacuation broadcast and an evacuation route indication in an audio-visual manner, enabling more efficient emergency preparedness guidance.

Moreover, preferably, even various sensors can be integrally mounted, so it is possible to achieve more efficiency, and even without a separate communication terminal, the terminal device of the present invention alone can count abnormal disaster situations and occupants, and can help accurate and immediate evacuation. It is possible to provide a terminal device for emergency evacuation broadcasting.

In particular, according to the control method of the terminal device for emergency evacuation broadcasting according to the present invention, the emergency evacuation broadcast considering even distributed evacuation so that the evacuation situation of the occupants is dynamically grasped and the situation where the occupants are evacuated to one side is prevented in advance. It is possible.

Other objects and advantages of the present invention in addition to the above objects and effects will become apparent through the detailed description of the embodiments with reference to the accompanying drawings.

1 is a configuration diagram of an intelligent evacuation guidance system according to the first prior art.
Figure 2 is a configuration diagram of the direction indicating unit of the intelligent evacuation guidance system according to the first prior art.
3 shows a state in which an evacuation route is guided to a user terminal according to the second prior art.
4 is a sequence diagram illustrating a process in which an evacuation route is provided to a user terminal according to the second prior art.
5 is a diagram illustrating a state in which a user terminal receives beacon information from a beacon according to the second prior art.
6 is a sequence diagram illustrating a process in which a user terminal acquires location information according to the second prior art.
7 is a block diagram of a smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art.
8 is a detailed configuration diagram of a smoke diffusion and evacuation route prediction unit in the smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art.
9A and 9B are diagrams for specifically explaining the IoT sensor in the smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art, respectively.
10 is a plan view illustrating smoke diffusion in a smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art.
11 is a plan view illustrating that the evacuation route determined in the smart evacuation route guidance system based on real-time smoke and flame detection according to the third prior art is displayed on the occupant's smartphone.
12 is an operation flowchart of a smart evacuation route guidance method based on real-time smoke and flame detection according to the third prior art.
13 is an overall schematic configuration diagram of an emergency evacuation broadcasting system according to an optimal embodiment of the present invention.
14 is a block diagram of a terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention.
15 is an exemplary diagram of a display unit of a terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention.
16 is a flowchart of a control method of a terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention.
17 is a schematic diagram of an occupant sensing state of a terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention;
18 is a schematic diagram of a sensing state of a moving state of an occupant of an emergency evacuation broadcasting terminal device according to an optimal embodiment of the present invention;
19 is a schematic diagram of sensing the entry/exit status of occupants of the terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention.
20 is a schematic diagram of the sensing state of the entire movement state of the occupants of the terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention.
21 is a block diagram of a terminal device for emergency evacuation broadcasting according to a modified example of the present invention.
22 is a structural diagram of a terminal device for emergency evacuation broadcasting according to a modified example of the present invention.
23A is a view showing a normal broadcast output state of the terminal device for emergency evacuation broadcasting of FIG. 22;
23b is an emergency preparedness broadcast output state diagram of the emergency evacuation broadcast terminal device of FIG. 22;
Fig. 24 is a main flowchart of the overall control method of the server in Fig. 13;
25 is a flowchart of a process for identifying occupants and grouping terminal devices by a beacon sensing method in FIG. 24;
26 to 28 are flowcharts for the generation and processing of beacon sensing data of the terminal device sensor unit in the building in FIG. 25. FIG. 26 is a flowchart of the sensors built into the general-purpose terminal device, and FIG. 27 is a terminal device around the entrance. It is a flowchart of the sensor, and FIG. 28 is a subroutine for processing temperature sensing data.
29 is a flowchart of a process for occupancy identification and terminal device grouping by the mmWave sensing method in FIG. 24;
30 and 31 are flow charts for the generation and processing of mmWave sensing data of the terminal device sensor unit in the building in FIG. 29, and FIG. 30 is a flowchart of the general-purpose terminal device built-in sensor, and FIG. A flow chart of the sensor.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

However, the accompanying drawings are only described in order to more easily disclose the contents of the present invention, and the scope of the present invention is not limited to the scope of the accompanying drawings. you will know

(Terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention)

First, an emergency evacuation broadcast terminal device according to an optimal embodiment of the present invention will be described with reference to FIGS. 13 to 20 .

13 is an overall schematic configuration diagram of an emergency evacuation broadcasting system according to an optimal embodiment of the present invention, FIG. 14 is a configuration diagram of a terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention, and FIG. 15 is the present invention is an exemplary diagram of a display unit of a terminal device for emergency evacuation broadcasting according to an optimal embodiment of

16 is a flowchart of a control method of a terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention.

17 is a schematic diagram of the occupant sensing state of the terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention, and FIG. 18 is a sensing state of the movement state of the occupant of the terminal device for emergency evacuation broadcasting according to the optimal embodiment of the present invention. 19 is a schematic diagram of sensing the entry/exit status of occupants of the terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention, and FIG. 20 is the entire occupant of the terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention. It is a schematic diagram of the sensing state of the moving state.

The evacuation situation information transmission and broadcasting system identifies the presence and absence of occupancy and number of occupants for each floor and each room in the event of a disaster such as a fire or earthquake within a building, and extracts information on the occupants' movement status and evacuation status to extract information on the situation room or rescue It is a system for providing information to reduce evacuation and lifesaving time by transmitting to the center and providing emergency evacuation voice broadcasting and/or evacuation route guidance through the situation room or remote network through the local speaker.

First, as shown in FIG. 13, the emergency evacuation broadcasting system according to the present invention includes a server 100 that is a controller for detecting occupants and displaying disaster information, and a plurality of emergency situations for detecting occupants and displaying disaster information. Consists of a terminal device 200 for evacuation broadcasting, the terminal device 200 transmits the person information data for each floor and each room to the server 100, and the server 100 is the terminal device 200, usually through a speaker line. An audio signal is broadcast, but in an emergency, a voice signal for evacuation guidance and evacuation information is transmitted. In particular, when a problem occurs in the speaker line due to a disaster, it directly switches to a wired/wireless network audio broadcast to guide and evacuate. In response to the transmission of text data, the terminal device 200 converts Text to Speech (TTS) information into voice information while displaying evacuation guidance information to perform an emergency evacuation broadcast through a speaker.

Naturally, the server 100 sends audio to the terminal device 200 including the speaker selector 220 and the line checker 230 through the line audio mixer 500 and the audio amplifier 600 when the speaker line is normal. As a signal is transmitted, the audio signal may be directly transmitted from the server 100 to the audio mixer 500 , or through a separate voice broadcasting main controller 400 , a network input device such as a separate smart phone or remote controller It can also be entered into the administrator mode through .

The line checker checks whether the speaker circuit is disconnected or a short circuit occurs, and the check data is transmitted to the server 100 through the voice broadcasting main controller 400. Accordingly, the server 100 sends it to the manager when a speaker line problem occurs. and directly transmits the evacuation guide information to the terminal device 200 in a separate wired/wireless network method.

On the other hand, the server 100 may collect sensing information from the terminal device 200 and broadcast disaster preparedness, but in the case of an earthquake, external fire, or tsunami, it is transmitted from the disaster management agency server (not shown) to the building. Disaster broadcasting may be performed by receiving other disaster occurrence data through the disaster information receiving terminal 300 .

In addition, the server 100, after recognizing the occurrence of a disaster, transmits an external access right URL and password to the situation room rescue center 700 and/or the safety manager terminal 800 having the emergency broadcast use right as text messages, When the external access right URL and password are inputted from the situation room rescue center 700 and/or the safety manager terminal 800 having the emergency broadcast use right from the situation room rescue center 700 and/or the safety manager terminal 800, the corresponding web Situation room rescue center 700 and/or safety manager terminal 800 with emergency broadcasting rights by sending disaster information such as real-time disaster information, occupancy information for each floor and room, gift drawings, and speaker selection button through the page It receives speaker selection data and emergency voice signal data from the outside and enables disaster broadcasting from outside.

On the other hand, the terminal device 200 of the present invention primarily senses the number of occupants and the occurrence of a disaster through various sensors and reports it to the server 100 through a speaker line or a separate wired/wireless network method, FIG. 13 and 14, a built-in sensor such as a BLE search sensor 293, a temperature sensor 292, and a mmWave sensor 291, as well as a TOF (Time of Flight) sensor 900 that counts the number of people when passing through the door ), it is also possible to collect information on the number of people entering and leaving the room through an external sensor. For example, the TOF sensor 900 searches for one door with the mmWave sensor 291 when the two doors are out of the search range of the mmWave sensor when the TOF sensor 900 has two doors for a specific room such as a classroom or an office. And, the other door senses the number of people entering and exiting with the TOF sensor 900 and transmits the data to the terminal device 200 . In addition, the remote location evacuation guidance voice broadcast is output to the speaker unit 210 and evacuation route display information is output to the display unit 270 .

Subsequently, the terminal device 200 for emergency evacuation broadcasting will be described in more detail with reference to FIG. 14 . In general, for aesthetic reasons, only a part of the audio broadcasting speaker unit 210 whose main body is embedded in the ceiling is exposed to the outside and the ceiling. The bar is covered by the finishing plate. In the terminal device 200 of the present invention, the display unit 270 replaces the ceiling finishing material, and when it is desired to display emergency evacuation information, the display unit 270 (More precisely, a double-sided LED signage or LCD panel) is preferably spread out about the hinge shaft 271 by the servo motor 272 to display the evacuation route and the evacuation direction. Therefore, it is usually used only as a public address speaker, but in an emergency, evacuation information is displayed together with an emergency broadcast by the speaker unit. Of course, it is also possible that it is used for information display especially by building managers, even in non-emergency situations. That is, when a disaster occurs, the display unit 270 is automatically opened, and when a text message is broadcast by an administrator or the like, it can be opened manually.

On the other hand, apart from the audio amplifier 600 of the entire system, the amplifier module 250 can also be embedded in each terminal device 200, and when the speaker line is normal, the server 100 and the audio signal are provided through this. will receive

In addition, the communication module 240 can directly transmit various sensor information to the server 100 in an Ethernet or Power over Ethernet (PoE) method, and on the other hand, when a problem occurs in the speaker line, display data or external It enables TTS audio broadcasting information to be exchanged with the server. Also, when an emergency such as a fire or earthquake occurs, there is a high possibility that a problem occurs in a wired line such as Ethernet, so it is preferable to provide a wireless communication method such as WIFI or RF.

Unexplained reference numeral 290 is a built-in sensor unit including a BLE search sensor 293, a temperature sensor 292, and a mmWave sensor 291, 260 is a sub-speaker connection port, 280 is a built-in auxiliary is the battery

In addition, if the description of the terminal device 200 is added, visitors with beacon tags can use the BLE search sensor 293 of the sensor unit 290 mainly installed in the entry section and passage for each floor to check the BLE card of the occupant. Collects Mac address and Received signal strength indication (RSSI) information data, and collects real-time movement and location data through mmWave sensor 291 for BLE card non-residents to determine location and occupancy, and also temperature sensor 292 ) to check the temperature condition of the installation area. The collected data is transmitted to the server 100 of the broadcasting room through wired/wireless communication.

The terminal device 200 for emergency evacuation broadcasting of the present invention serves not only as an input sensor for the server, but also serves as an output device, and when a disaster occurs, evacuation voice broadcast and disaster information through analog and network streams are transmitted to the terminal device 200 ), while outputting as voice information through the speaker unit 210 mounted on the display unit (for example, an LED signboard) 270 is opened and closed and output as text information through this.

15 shows an example of outputting text information on a double-sided LED sign board, in FIG. 15 (a), when there is an emergency exit on the left, the location of the emergency exit is expressed by a left arrow (←) (in FIG. 15 ). (c)), on the other hand, in FIG. 15(b), when there is an emergency exit on the right side, the location of the emergency exit is expressed by a left arrow (→). In some cases, it may be expressed as a character stream as shown in (d) of FIG. 15 .

(Control method of a terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention)

Now, a method for controlling a terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention will be described with reference to FIGS. 16 to 20 mainly.

In the control method of the terminal device for emergency evacuation broadcasting according to the optimal embodiment of the present invention, as shown in FIG. 16 , first, the number of occupants in each predetermined area is identified ( S10 ). As an example, as shown in FIG. 17 , the Mac address and RSSI information data of the BLE beacon card 10 of the visitor are collected by the BLE search sensor 293 , and the BLE card non-resident is occupied through the mmWave sensor 291 . It counts the number of people and collects real-time movement and location data to determine the location and occupancy. Unexplained reference numeral 200' denotes a general ceiling-mounted PA speaker without a sensor function, and a relatively inexpensive general type may be installed in an area that does not require a sensor, such as outside a building.

After that, did you receive disaster data such as fire or earthquake from the outside through the server 100? Checking whether or not (S11), if disaster data is received, transmits the personnel information of the corresponding area to the server 100 (S30), otherwise, the temperature of the installation area through the temperature sensor 292 Did you check the condition and did the ambient temperature exceed the standard value? It is checked whether or not (S12).

Also, as a result of the determination of step S12, if it is determined that an internal disaster (fire) has occurred because the ambient temperature exceeds the reference value, the fire occurrence and personnel information of the corresponding area is transmitted to the server 100 (S20), otherwise In this case, did you receive the display data from the server 100? It is checked whether or not (S14), if not, it returns to the first and repeats, and if it is received, the received data is displayed on the speaker and/or electronic signboard and returned to the first (S15).

Preferably, in order to reduce the error in determining whether a fire has occurred, when the ambient temperature does not exceed the reference value in the step S12, the method does not proceed directly to the step S14, for example, a method of detecting the degree of light passing and Also, did the amount of smoke in the air exceed the standard? (S13), if it is determined that the amount of smoke in the air exceeds the reference value, proceed to step S16, and the ambient temperature does not exceed the reference value in step S12 and at the same time, the amount of smoke in the air exceeds the reference value in step S13 If it is not exceeded, the process may proceed to step S15.

On the other hand, after transmitting the fire occurrence and personnel information of the corresponding area to the server 100 in the step S20, the terminal device 200 checks again whether or not there are occupants in the corresponding area (S21), When it is determined that there are no more occupants in the relevant area, a simple internal fire announcement is broadcast and fire guidance text is displayed on the electronic signboard (S22, S23). On the other hand, when it is determined that there are occupants in the relevant area as a result of the determination in step S21, the fire is displayed on the electronic signboard while an evacuation broadcast to evacuate because an internal fire has actually occurred, beyond a simple internal fire announcement. Characters should be displayed up to the evacuation direction (S24, S25). In this case, the evacuation route should be marked in different directions on the front and back surfaces of the electronic signboard in consideration of the location of the fire, the direction of the entrance and the number of occupants.

On the other hand, after transmitting the personnel information to the server 100 in the step S30, the terminal device 200 also checks again whether there are occupants in the corresponding area (S31), and occupies the corresponding area. When it is determined that the personnel no longer exist, a simple external disaster information broadcast is performed and the disaster guidance text is displayed on the electronic board (S32, S33). On the other hand, as a result of the determination in step S31, the number of people occupancy in the area is If it is judged that there is an evacuation broadcast to evacuate in which direction, since an external disaster such as an external fire, tsunami, or earthquake has actually occurred, beyond a simple external disaster information broadcast, letters should be displayed on the electronic signboard up to the evacuation direction. (S34, S35), also in this case, the location of the external disaster, the location of the collapse of the internal building, whether the door is closed, the direction of the entrance, and the number of occupants are taken into account to indicate the evacuation route in different directions on the front and back sides of the electric sign board.

For reference, FIG. 18 shows a state in which two or more terminal devices sense and determine the moving state and moving direction of occupants. For example, two occupants (1, 2) in the first terminal device 200a When it is detected by the mmWave sensor, the first terminal device 200a continues to track the moving direction of the occupant while sharing personnel information and direction information with the movable adjacent second terminal device 200b existing in that direction, and then 2 When the occupant 2 is sensed by the terminal device 200b and not detected by the first terminal device 200a, the occupant 2 leaves the corresponding area and moves to the sensing range of the second terminal device 200b. It is determined that this has been done, and it is continuously transmitted to the server 100 .

19 is a schematic diagram of sensing the entry/exit status of the occupant 2 by the terminal devices 200a, 200b, 200c and the TOF sensor 900, and the second occupant 2 is the first terminal device 200a ) moved from the detection area of the second terminal apparatus 200b to the detection area of the second terminal apparatus 200b, but in the case of the first occupant 1, it disappeared from the detection area of the first terminal apparatus 200a, and the first terminal apparatus 200a and the second occupant 1 If it is detected by the TOF sensor 900 installed on the door between the three terminal devices 200c, each terminal device and the TOF sensor also transmits this data to the server, but by mutual sharing, the first occupant 1 It is judged that it has moved to the second room.

Additionally, FIG. 20 is a schematic diagram of the sensing state of the entire movement state of the occupants of the terminal device for emergency evacuation broadcasting according to an optimal embodiment of the present invention. Each of the terminal devices 200a, 200b, 200c, 200d, 200e, 200f By the BLE search sensor 293, the temperature sensor 292, and the mmWave sensor 291, "2 occupants in the left hallway on the 1st floor, 2 occupants in the 1st-floor right hallway, 2 occupants in the left hallway on the 2nd floor person, 4 occupants in the right hallway on the 2nd floor, 2 occupants in the 3rd floor left hallway, 1 occupant in the 3rd floor right hallway", the temperature sensor of the terminal device 200f in the corner of the 3rd floor right hallway When a temperature higher than the standard value is detected in (292) (detected that a fire has occurred), the 2nd floor can be evacuated by dispersing it to each staircase, but on the 3rd floor, an evacuation broadcast and an evacuation route are indicated so that you can evacuate to the left. , the occupants on the left side of the 1st floor will have to wait for a while to give an announcement

(Modified example of terminal device for emergency evacuation broadcasting of the present invention)

Now, a modified example of the terminal device for emergency evacuation broadcasting of the present invention will be described with reference mainly to FIGS. 21 to 23B.

21 is a block diagram of a terminal device for emergency evacuation broadcasting according to a modification of the present invention, FIG. 22 is a structural diagram of a terminal device for emergency evacuation broadcasting according to a modification of the present invention, and FIG. 23A is an emergency evacuation of FIG. It is a state diagram of the normal broadcasting output state of the broadcasting terminal device, and FIG. 23B is an emergency preparedness broadcasting output state diagram of the emergency evacuation broadcasting terminal device of FIG. 22 .

The biggest difference between the terminal device 200' of this modification and the terminal device 200 of the above-described optimal embodiment is that the terminal device 200' of the present modification does not include the sensor unit 290 in FIG. Instead, it is composed of only the speaker unit 210 and the display unit 270 . Therefore, it is possible to simplify the data receiving module 240' instead of the communication module 240, and the speaker line can also be simplified.

However, in this modified example, the display unit 270 such as an electric signboard is synchronized with the data receiving module 240 ′ and can be opened and closed only when the evacuation information is displayed as text is the same.

After all, according to the control method of the terminal device for emergency evacuation broadcasting according to the present invention, by periodically checking the number of occupants in the corresponding area, even the evacuation situation of the occupants is dynamically grasped, and the situation in which the evacuation occupants are flocked to one side is in advance It is possible to broadcast an emergency evacuation considering distributed evacuation to prevent it.

(Control method of emergency evacuation broadcasting system related to the present invention)

For reference, a control method for the operations of the server 100 and the terminal device 200 of the emergency evacuation broadcasting system of FIG. 13 related to the present invention will be described with reference to FIGS. 24 to 32 .

FIG. 24 is a flowchart for the overall control method of the server in FIG. 13, and in FIG. 24, the process for occupancy identification and terminal device grouping by the beacon sensing method is shown in FIG. 25, and occupancy identification and The process for grouping terminal devices is shown in Fig. 29, respectively.

That is, FIG. 25 is a flowchart for a process for occupancy identification and terminal device grouping by the beacon sensing method in FIG. 24, and FIGS. 26 to 28 are the generation of beacon sensing data of the terminal device sensor unit in the building in FIG. and processing, FIG. 26 is a flowchart of sensors built into a general-purpose terminal device, FIG. 27 is a flowchart of a sensor of a terminal device near an entrance, and FIG. 28 is a subroutine for processing temperature sensing data.

Also, FIG. 29 is a flowchart for a process for occupancy identification and terminal device grouping by the mmWave sensing method in FIG. 24, and FIGS. 30 and 31 are the mmWave sensing data of the terminal device sensor unit in the building in FIG. As a flowchart for generation and processing, Fig. 30 is a flowchart of a sensor built-in in a general-purpose terminal device, and Fig. 31 is a flowchart of a sensor in a terminal device around an entrance.

32 is a flowchart for emergency broadcast processing of the safety manager terminal and the rescue center in FIG. 13 .

First, the overall operation of the server 100 in the system of the present invention will be described in detail with reference to FIG. 24 .

When operating normally without receiving disaster data, the disaster stage status display is initialized to 'interest', which is the lowest disaster level (S100), and then the terminal devices 200 and the number of people in the building are identified (S101) .

After that, the disaster data reception check and fire data reception check routines are performed (S102, S103), and the disaster data is received from the outside, that is, from the disaster information receiving terminal 300 connected to the disaster management agency server? It is checked whether or not (S104).

As a result of the determination in step S104, if disaster data is not received, recheck whether fire data is received (S106), and is a fire occurred in the building together with the terminal devices 200? It is checked whether or not (S107), and if it is determined that there is no fire in the building as a result of the determination in step S107, the process returns to the first step.

On the other hand, as a result of the determination in step S104, when disaster data is received, is the disaster step higher than or equal to the 'warning' step? It is checked whether or not (S105), and if not, proceeds to step S106.

On the other hand, as a result of the determination in step S105, if the disaster stage is higher than or equal to the 'warning' stage, is the disaster stage higher than or equal to the 'serious' stage? Check whether or not (S108), if not, is there a fire in the building? It is checked whether or not (S109).

Thus, as a result of the determination in step S109, when it is determined that there is no fire in the building, the current disaster stage and the status of the number of occupants in the building are notified to the safety manager terminal 800 (S110). Whether the disaster level and the status of personnel in the building are notified to the safety manager terminal (S110) and the authority to upgrade the disaster level in the building of the safety manager terminal is granted depends on the internal regulations of each building.

After that, it is checked whether the disaster level has been upgraded from the safety manager terminal (S111), and if not, all sensors in the building are scanned (S117), and the current status of occupants in the building and display information data are transferred to the safety manager terminal until the situation ends. output in real time to (S118).

Afterwards, has the fire in the building been extinguished or the disaster level has been downgraded to 'alert' or lower? It is checked whether or not, and in such a case, the disaster state display is marked as 'alert' (S119), and then re-executed from step S101.

That is, when the disaster stage status display is 'interest' or 'warning', sensors around the entrance to the building (eg TOF sensors 900) scan the beacons of the Advertiser mode (S101) to maintain the normal state.

In the normal state, the Observers execute the same preparation steps as (S300) and may have a different setting than in the case of a fire.

For example, 'Observer' refers to a beacon scanner, and 'Advertiser mode' refers to a beacon that transmits data at regular intervals.

On the other hand, i) when it is determined that a fire has occurred in the building as a result of the determination in steps S107 and S109, or ii) when it is determined that the disaster level is greater than or equal to the 'severe' level in step S108, or iii) safety in step S111 When the manager terminal upgrades the disaster level, or iv) when the fire in the building is not extinguished and the disaster level is not lowered in step S119, the emergency broadcasting routine (S120 to S126) must be performed.

When explaining the emergency broadcasting routine (S120 to S126), first, the TOF sensor 900 connected to each terminal device 200 is driven (S120), and the number of occupants in the blind spot in the building is more accurately identified and the movement of occupants is controlled. In order to check the number of occupants, the number of occupants in the building is more accurately identified than usual through the TOF sensor 900 installed around the entrance (S122), and disaster information and display information data are matched with the number and location of occupants to match each terminal It is transmitted to the speaker unit 210 and the display unit 270 of the device (S123), so that the evacuation route is displayed while the emergency broadcast is made, and the safety manager terminal 800 is given broadcasting equipment control rights and an ID and password. While (S124), in response to the login of the safety manager terminal, the disaster stage and the status of the number of occupants in the building is notified to the safety manager terminal (S125).

Immediately after or simultaneously with steps S124 and S125, the data on the number of occupants in the building is notified to the rescue center 700 in charge such as the 119 center (S126), and the process proceeds to step S118.

(I) Process of identifying the number of occupants in the building through the beacon sensor

Now, in the process (S101, S122) for the server 100 to identify the terminal devices 200 and the number of occupants in the building, the occupancy in the building through the BLE beacon sensor 293 in the general-purpose terminal device 200 For the process of identifying the number of people (G→H1) and the process (G→H2) of identifying the number of occupants in the building through the beacon sensor in the terminal device 200 near the entrance such as the TOF sensor 900 (G→H2), refer to FIG. 25 . to be described in detail.

First, the customer UUID value from the safety manager terminal 800 is registered in the server 100 (S400).

After that, is the status indication of the disaster stage higher than 'alert' or a fire situation? It is checked whether or not (S401), otherwise, in the case of determining the general number of occupants, once indoors through the temperature sensors 292 and BLE search sensors 293 of the general-purpose terminal devices 200 in the building of FIG. 26 . The presence or absence of temperature abnormality and the number of occupants are checked (S402). This will be described later with reference to FIGS. 26 and 28 .

After step S402, is the same UUID data received among the received data of two or more observers in order to determine the distribution of people at the Observer position of the general-purpose terminal devices 200 on each floor? (S403), if the same UUID data is detected among the data received by two or more Observers, the corresponding RSSI data of the Observers who transmitted the same data is received (S404), and the distance to each Observer is measured It is calculated (S405), and the location of the occupant is applied to the location corresponding to the area of the observer detected from the nearest distance among multiple observers. For reference, the observer may be sensors in the terminal device 200, but is not limited thereto, and may be a sensor 900 connected to the outside of the terminal device or an existing beacon terminal.

However, after that, is the same UUID data from the other layer Observer received? (S406), and if UUID data has been received, an exception is processed after searching for the unique MAC address of the corresponding observer (S410). The same UUID data is detected by re-detecting the data received by two or more observers in the corresponding layer. is received? It is checked whether or not (S407), and thus the distribution of the number of occupants in the corresponding area is identified.

Again, when the same UUID data of two or more Observers on the same floor sensed is received, the corresponding Observers and terminal devices for displaying surrounding disaster information are grouped according to their respective evacuation routes (S408).

Thereafter, the location data of the customer holding the beacon of the corresponding Advertiser mode is updated in real time, and since the number of people is increased or decreased for the group corresponding to the corresponding zone or location, the corresponding zone or location data is updated (S409). Thereafter, the process proceeds to S101 of FIG. 24 (G→H1).

On the other hand, in the case of 'YES' as a result of the determination in step S401 (in case of a disaster or fire), in order to more accurately identify the number of occupants in the building in an emergency (S122 in FIG. 24), terminals near the entrance of each floor In order to identify the number of customers who have entered the building through the devices (200d in FIG. 20) through the devices (200d in FIG. 20), the server 100 includes the temperature sensors 292 and the BLE of the terminal devices 200d around the doorway. The presence or absence of room temperature abnormality and the number of people entering and leaving are checked through the search sensors 293 (S420). Again, this will be described later with reference to FIGS. 27 and 28 .

After step S420, in order to determine the number of people entering and leaving from the terminal devices 200d around each entrance to accurately identify the number of people in the blind spot and the number of people moving due to entry and exit, are packets of one or more Observers received? Check whether or not (S422), if received, increase the number of people active in the building (S423), otherwise decrease the number of people active in the building (S424), and then proceed to S122 of FIG. 24 (G→H2) .

(I-1) Normal beacon operation sub-process of general-purpose terminal device in building (A1→B1)

Now, the normal beacon operation S402 (A1→B1) of the general purpose terminal device 200 in the building of FIG. 25 will be described with reference to FIGS. 26 and 28 . (And the emergency beacon operation (S420) (A2→B2) of the terminal device 200d near the entrance of FIG. 25 will be described later with reference to FIGS. 27 and 28.)

First, the general-purpose terminal device 200 in the building sets the Observers during normal operation (disaster stage 'interest', 'warning') (S200), and the internal temperature sensing operation of FIG. 28 (S201) After performing (this will be described later in detail), a step (S202) of scanning the Observers is performed, which is the same as checking beacon sensors, for example.

After that, is the iBLE Advertising packet of the BLE search sensors 293 detected? Check whether it is (S203), if not detected, return to the previous step (S201), if detected, check the beacon UUID valid value (S204), receive the RSSI output value, and filter the RSSI data (S206) , RSSI distance calculation and filter value, UUID value, and temperature data are transmitted to the server 100 (S207), and the process proceeds to S403 of FIG. 25 (A1→B1).

Subsequently, referring to FIG. 28, the internal temperature sensing subroutine is described. After initializing the temperature sensor 292 (S211), and the internal temperature sensor of each terminal device checks the temperature of the surrounding air (S212), When it is less than 50 degrees (S213), it is displayed with a green LED (S217), when it is more than 50 degrees and less than 60 degrees (S214), it is displayed with a yellow LED (S218), and when it is more than 60 degrees (S215), a red LED is displayed. is indicated as (S219). Thereafter, the temperature data is stored (S216), and the process proceeds to step S202 of FIG. 26 (E→F).

(I-2) Beacon operation sub-process in case of emergency of terminal device near entrance (A2→B2)

On the other hand, if the "emergency" beacon operation S420 (A2→B2) of the terminal device 200d near the entrance of FIG. 25 will be described with reference to FIGS. 27 and 28, first, the terminal device 200d near the entrance. In case of emergency operation (disaster stage 'serious', 'fire occurrence'), observers are set (S300), and after performing the internal temperature sensing operation of FIG. 28 as described above (S301), the Observer A step ( S302 ) of scanning them is performed, which is the same as checking beacon sensors, for example.

After that, is the iBLE Advertising packet of the BLE search sensors 293 detected? Check whether (S303), if not detected, return to the previous step (S301), if detected, check the beacon UUID valid value (S304), and transmit the UUID value and temperature data to the server 100 (S305) ), proceed to S422 of FIG. 25 (A2→B2).

That is, the observers of the display device around the entrance of the building scan the beacons of the Advertiser mode (S302), and when a beacon of the Advertiser mode having UUID (Universally Unique IDentifier: 汎用固有識別子) information is detected (S303), the beacon of the corresponding beacon is detected (S303). After checking whether the UUID value is a valid value (S304), it is registered in the server.

(II) Process of identifying occupants in a building through mmWave sensor

Now, in the process (S101, S122) of the server 100 identifying the terminal devices 200 and the number of occupants in the building, the occupancy in the building through the mmWave sensor 291 in the general-purpose terminal device 200 The process (K→L1) of identifying the number of people (K→L1) and the process (K→L2) of identifying the number of occupants in the building in an emergency through the mmWave sensor in the terminal device 200d near the entrance will be described in detail with reference to FIG. 29 . For reference, the reason that mmWave sensing is additionally required is that it is possible simply by beacon sensing for a person who does not have a BLE card, but, as described above, accurate identification of the number of occupants without a pass is required in an emergency.

As shown in FIG. 29 , first, the server 100 checks whether there is an abnormality in the room temperature and the number of occupants through the mmWave search sensors 291 of the general-purpose terminal devices 200 in the building of FIG. 30 (S700) . This will be described later with reference to FIGS. 30 and 31 .

After that, is the status indication of the disaster stage higher than 'alert' or a fire situation? It is checked whether or not (S701), otherwise, in the case of general occupancy identification, in order to grasp the distribution of people in the area of the general-purpose terminal devices 200 on each floor, the range of two or more mmWave sensors is Check if they overlap (S703), and if the ranges of 2 or more mmWave sensors overlap? Check whether there is (S705), and if there is overlap, the number of occupants is reflected after performing overlap detection filtering (S706). Otherwise, the number of occupants who may be in a blind spot outside the area between the mmWave sensors is checked immediately ( S707).

After that, are the occupants who have left the relevant mmWave sensor detected by the surrounding mmWave sensor? (S708), if not, the presence of occupants in the blind spot is checked, and the person detected by the mmWave sensor in the area moves to another area, escapes the detection of the area, and is detected in another area. In this case, the movement of the person is detected, and the number of persons in the corresponding area and the moved area is increased or decreased and reflected in the number of persons (S709).

After the step S709, and immediately when the determination result in step S708 is 'YES', the terminal devices for displaying the disaster information for each area and the terminal devices for displaying the emergency information on the exit side are arranged according to the respective evacuation routes. group (S710).

Thereafter, the customer's location data in the corresponding area is updated in real time, and since the number of people is increased or decreased for the group corresponding to the corresponding area or location, the corresponding area or location data is updated (S711). Thereafter, the process proceeds to S101 of FIG. 24 (K→L1).

On the other hand, in the case of 'YES' as a result of the determination in step S701 (in case of a disaster or fire), in order to more accurately identify the number of occupants in the building in an emergency (S122 in FIG. 24), terminals near the entrance of each floor In order to identify the number of customers who have entered the building through the devices (200d in FIG. 20) through the devices (200d in FIG. 20), the server 100 detects mmWave search sensors 291 of the terminal devices 200d around the entrance. Through this, the number of people entering and leaving is checked (S720). Again, this will be described later with reference to FIG. 31 .

After the step S720, in order to determine the number of people entering and leaving from the terminal devices 200d around each entrance to accurately identify the number of people in the blind spot and the number of people moving due to entry and exit, the data on the number of active people in the building is updated (S721) After that, the process proceeds to S122 of FIG. 24 (K→L2).

(II-1) Normal mmWave sensing operation sub-process of general-purpose terminal device in building (I1 → J1)

Now, the normal mmWave sensing operation S700 (I1→J1) of the general-purpose terminal device 200 in the building of FIG. 29 will be described with reference to FIG. 30 . (And the mmWave sensing operation (S420) (I2→J2) of the terminal device 200d near the entrance of FIG. 29 will be described later with reference to FIG. 31 .)

First, in the general-purpose terminal device 200 in the building, in normal operation (disaster stage 'interest', 'warning'), the mmWave sensors 291 of the general-purpose terminal device 200 are in the preset corresponding area. is scanned (S500), and the movement of occupants in the corresponding area is detected (S501).

After that, count the number of occupants in the area (S502), and do they enter the area to track their movements? It is checked whether or not (S503), and in such a case, the number of occupants in the corresponding area is increased (S504).

After that, do those personnel go out of the area again? It is checked whether or not (S505), and in such a case, the number of occupants in the corresponding area is reduced (S506).

On the other hand, in the case of 'NO' in steps S503 and S505, the number of people in the corresponding area is maintained as it is (S507).

After steps S506 and S507, is there any movement of the occupants in the corresponding area? It is checked again in real time (S508), if not, the last location is displayed to maintain the number of occupants (S509), and in such a case (YES), the location is displayed to maintain the number of occupants (S510), and thereafter 29, the process proceeds to step S701.

(II-2) Sub-process of mmWave sensing operation in case of emergency of terminal devices near the entrance (I2→J2)

On the other hand, if the "emergency" mmWave sensing operation (S720) (I2 → J2) of the terminal device 200d near the entrance of FIG. 29 is described with reference to FIG. 31, first, the terminal device 200d near the doorway 200d, In case of emergency operation (disaster stage 'severe', 'fire'), the mmWave sensors 291 of the terminal device 200d near the entrance scan a preset area around the entrance (S600), and around the entrance The movement of the occupants is detected (S601).

After that, if there are two or more people moving around the entrance, increase or decrease by the number of people, count (increase or decrease) the number of active people (S602), and do the people enter the area from the direction of the entrance to track their movements? It is checked whether or not (S603), and in such a case, the number of active persons in the building is added (S604).

After that, do those personnel move in the direction of the entrance again and go out of the area? It is checked whether or not (S605), and in such a case, the number of active persons in the building is reduced (S606).

On the other hand, in the case of 'NO' in steps S603 and S605, the number of active people in the building is maintained as it is (S607).

After steps S606 and S607, are there movements of the corresponding occupants in the corresponding area? It is checked again in real time (S608), if not, the last location is displayed to maintain the number of people active in the building (S609), and in such a case (YES), the location is displayed to maintain the number of people active in the building (S610) ), proceed to S721 of FIG. That is, the mmWave sensors for each internal area calculate the number of people, but do not transmit the number of people data.

In the above, the present invention has been described according to an embodiment of the present invention, but changes and modifications made by those of ordinary skill in the art to which the present invention pertains without departing from the technical spirit of the present invention also belong to the present invention. Of course.

1, 2: occupant
10: BLE beacon card
100: Server 200: Terminal device for emergency evacuation broadcasting
200': conventional ceiling-recessed speaker 200": terminal device of a modified example
210: speaker unit 220: speaker selector
230: line checker 240: communication module
250: amplifier module 260: sub-speaker connection port
270: display unit 271: hinge
272: servo motor 280: auxiliary battery
290: sensor unit 291: mmWave sensor
292: temperature sensor 293: BLE search sensor
300: disaster information receiving terminal 400: voice broadcasting main controller
500: audio mixer 500': audio priority switcher
600: audio amplifier 700: control room rescue center
800: safety manager 900: TOF sensor

Claims (10)

A terminal device for emergency evacuation broadcasting that broadcasts an audio signal input through a speaker line during normal times and receives audio signals for evacuation guidance visual information and evacuation information from the server 100 in an emergency and outputs audio and visual output, a voice broadcasting speaker unit 210 that broadcasts an incoming audio signal partially or entirely buried in the ceiling or at least partially covered with a finishing material; a display unit 270 that is folded to cover at least a portion of the speaker unit 210 and is unfolded to display visual information when it is desired to visually output guide information; opening/closing means (271, 272) for opening and closing the display unit (270); audio connection means (250, 260) for connection with the speaker line; a communication module 240 for transmitting and receiving visual information data to be displayed or external TTS audio broadcasting information to and from the server when a problem occurs in the speaker line; and a sensor unit 290 for sensing and transmitting personnel information data and internal disaster information for each floor and each room to the server 100; It includes, and transmits various sensor information sensed by the sensor unit 290 to the server 100 through the communication module 240 in an Ethernet or Power over Ethernet (PoE) method or through the speaker line, ,
In normal times, audio information is audibly output through the speaker unit 210, and in an emergency, voice broadcast information received through the speaker line or the communication module 240 is outputted to the speaker unit 210 while simultaneously outputting the As a control method of an emergency evacuation broadcast terminal device for visually outputting visual information data to the display unit (270),
(a) identifying the number of occupants in each predetermined area (S10);
(b) After step (a), have you received external disaster data such as an external fire or earthquake from the server 100? determining whether or not (S11);
(c) as a result of the determination in step (b), if external disaster data is not received, determining whether an internal fire has occurred (S12, S13);
(d) If, as a result of the determination in step (c), there is no internal fire, has display data been received from the server 100? determining whether or not (S14);
(e) as a result of the determination in step (d), if not received, returning to the first and repeatedly performing, and if received, displaying the received data with a speaker and an electric sign (S15);
(f) as a result of the determination in step (c), if an internal fire occurs, transmitting the fire occurrence and personnel information in the corresponding area to the server 100 and performing subsequent processing; and
(g) when the disaster data is received as a result of the determination in step (b), transmitting the personnel information of the corresponding area to the server 100 and performing subsequent processing;
Control method of a terminal device for emergency evacuation broadcasting, characterized in that it comprises a. delete The method of claim 1,
The sensor unit 290 includes a BLE search sensor 293 for collecting Mac address and received signal strength indication (RSSI) information data of the resident's BLE card, a temperature sensor 292, and real-time movement and location data of the occupant. A control method of a terminal device for emergency evacuation broadcasting, characterized in that it comprises a mmWave sensor (291) that collects and senses the location and occupancy. 4. The method of claim 1 or 3,
The sensor unit 290, in addition to the sensors built into the terminal device, further includes an external sensor such as a TOF (Time of Flight) sensor 900 that counts the number of people when passing through the door to collect indoor/outdoor access person information. A control method of a terminal device for emergency evacuation broadcasting, characterized in that it can. The method of claim 1,
an amplifier module 250 for exchanging an audio signal with the server 100 when the speaker line is normal; and
a connection port 260 for connection with a terminal device of the next stage;
Control method of a terminal device for emergency evacuation broadcasting, characterized in that it further comprises. The method of claim 1,
a speaker selector 220 connected to the server side; and
a line checker 230 for checking whether a problem such as disconnection or short circuit of the speaker line occurs, and transmitting it to the server when a problem occurs in the speaker line;
Control method of a terminal device for emergency evacuation broadcast, characterized in that it further comprises. delete The method of claim 1,
The step (c) is,
(c1) Did the ambient temperature exceed the standard value by checking the temperature condition of the installation area through the temperature sensor 292? A step of checking whether or not (S12), and
(c2) Did the amount of smoke in the air exceed the standard? A control method of a terminal device for emergency evacuation broadcasting, characterized in that the overlapping check is performed in the step (S13) of checking whether or not there is. The method of claim 1,
The step (f) is,
(f1) After transmitting the fire occurrence and personnel information in the corresponding area to the server 100, the terminal device checks again whether or not there are occupants in the corresponding area (S21),
(f2) As a result of the determination in step (f1), when it is determined that there are no more occupants in the relevant area, a simple internal fire announcement is broadcast and the fire guide text is displayed on the electronic board (S22, S23) ,
(f3) If, as a result of the determination in step (f1), it is determined that there are occupants in the corresponding area, the actual evacuation broadcast is performed and the fire evacuation route is displayed (S24, S25)
Control method of a terminal device for emergency evacuation broadcasting, characterized in that. The method of claim 1,
The step (g) is,
(g1) After transmitting the personnel information to the server 100, the terminal device checks again whether there are occupants in the corresponding area (S31),
(g2) As a result of the determination in step (g1), when it is determined that there are no more occupants in the relevant area, a simple external disaster announcement is broadcast and the disaster guidance text is displayed on the electronic board (S32, S33) ,
(g3) As a result of the determination in step (g1), when it is determined that there are occupants in the corresponding area, an evacuation route is displayed while an evacuation broadcast corresponding to an actual external disaster (S34, S35)
Control method of a terminal device for emergency evacuation broadcasting, characterized in that.

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