KR20170090266A - A low power wide area safety network system by using a lpwa communications - Google Patents

Abstract

The present invention provides a low power wide area disaster safety net system based on cloud sensor communication network which can simultaneously process a large amount of sensor data by using a complex multi IoT sensor applying a convergence LED lighting system and low power wide area (LPWA) communication network. The system comprises: a sensor part capable of monitoring fire and toxic gas concentration; a display direction guide light inducing the direction of an emergency exit, and guiding so as to avoid an entry into a dangerous region; an emergency exit sign guide light informing a final emergency exit according to the direction of the induced emergency exit; and a cloud server receiving monitoring information from the sensor part in real time, drawing a path of the final emergency exit, and transmitting a control command with respect to the display direction guide light and the emergency exit sign guide light.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a low power wide area disaster safety net system using LPWA communication,

The present invention relates to a low power wide area disaster safety net system using LPWA communication.

If an accident such as a fire or a hazardous gas exposure occurs in an enclosed space such as a building facility, it is possible to notify people in the building facility of the dangerous situation as soon as possible, It is very important to use the so-called Golden Time to increase the survival rate in the event of a dangerous situation. Not only has the use time of building facilities reached its limit, but it was not enough to prepare for the disaster information due to limitations of communication equipment and network technology having mobility even in the past when the construction facilities were constructed. In addition, since various types of terrorist accidents have recently occurred, and methods of manufacturing harmful facilities for terrorism via the Internet are also being spread, if the danger can be propagated in a short time, Can also be reduced.

On the other hand, due to the development of information and communication technology, the penetration rate of terminals capable of data communication and having mobility for individuals is increasing, and the Internet (IoT) technology in which objects are communicated with each other and the cloud server Commercialization is proceeding at a rapid pace.

The inventor of the present patent application developed a wide-area disaster safety net using the LPWA communication network so as to be able to actively cope with a dangerous situation as described above, to evacuate people safely in a short period of time, and to minimize power consumption The present invention has been accomplished on the basis of the above object.

Korean Patent Laid-Open Publication No. 10-2015-0049202 discloses an emergency situation relay system and an emergency situation relay system which can notify an emergency situation to a user in a place where an emergency situation occurs, Korean Patent Laid-open Publication No. 10-2015-0073574 discloses a method for disaster prevention in a case where a disaster such as a fire occurs in a public facility or a building, so that the occupant can easily and quickly evacuate from the disaster And provides evacuation route guidance information to the occupant. As an additional prior art document, International Publication WO2015 / 148699 discloses an indoor navigation device and method capable of providing an emergency situation guidance through optical module communication.

[1] Korean Patent Publication No. 10-2015-0049202: Emergency situation relay system and its relay method [2] Korean Patent Laid-Open Publication No. 10-2015-0073574: a terminal providing evacuation route guidance information to the occupant and control method thereof, and a service server for providing evacuation route guidance information to the occupant and control method thereof [3] International Publication WO2015 / 148699: TECHNIQUES FOR INDOOR NAVIGATION WITH EMERGENCY ASSISTANCE VIA LIGHT-BASED COMMUNICATION

The present invention is to provide a low power wide area disaster safety net system based on a cloud sensor communication network capable of processing a large amount of sensor data at the same time by using a complex multi-IoT sensor and a LPWA communication network employing a fused composite LED lighting system.

According to an embodiment of the present invention, a low power wide area disaster safety net system is disclosed. The system comprises: a sensor unit capable of monitoring the presence or absence of a fire and the concentration of noxious gas; A display direction guide for guiding the direction of the exit and guiding the exit of the dangerous area; An emergency exit marker for informing a final emergency exit according to the direction of the derived emergency exit; And a cloud server for receiving monitoring information from the sensor unit in real time, deriving a path of the final exit, and transmitting a control command for the display direction guide, the emergency landmark, and the like. Also, the low power wide area disaster safety net system may include: a user terminal capable of receiving information on the route from the cloud server to the final emergency exit; And a repeater for extending the coverage from the cloud server to the user terminal.

In addition, the display direction guide light and the emergency exit marker guide can be implemented based on LEDs.

According to a further embodiment, in the low-power wide area emergency network system, the communication between at least two of the sensor unit, the display direction guide, and the emergency exit marker guide can be performed by a LPWA (Low Power Wide Area) communication network have. In other words, the first communication network between the sensor unit and the display direction guide can be data-communicated by the LPWA (low power wide area) communication network, and the second communication network between the sensor unit and the emergency- Data communication may be performed by the LPWA communication network and / or a third communication network between the display direction indicator and the emergency exit indicator may be performed by the LPWA communication network. In this way, the cloud server can communicate with each other by the sensor mesh network cloud, such as the sensor unit, the display direction guide, and the emergency exit marker guide.

In the low power wide area emergency network system, the fourth communication network between at least one of the sensor unit, the display direction guide, and the emergency landmark information and the cloud server may be a wired communication network, a third generation communication network, an LTE A communication network, and an LTE-A communication network.

According to another embodiment of the present invention, a computer readable storage medium storing a computer program for operating a low power wide area disaster safety net system is disclosed. The computer readable storage medium comprising instructions to: monitor a toxic gas concentration to determine whether a predetermined steady state concentration range is exceeded; Instructions for activating a display direction guide light and an emergency exit marker guide when it is determined that the toxic gas concentration exceeds the steady state concentration range or when a fire is detected; An instruction for transmitting an abnormal state notification signal to the cloud server by activating the emergency exit marker guide or the like; A command for calculating a point of fire occurrence by positioning the sensor unit detected as a fire occurrence in the cloud server and deriving an evacuation path up to the location information of the exits located in the entire facility where the system is installed; And an instruction to transmit the evacuation path information derived from the cloud server to the user terminal.

According to the low-power wide-area disaster safety net system according to the present invention, it can be applied to construction facilities and can be applied irrespective of the type and the form of a door. When a disaster occurs in a facility, The location, the route to the destination, and the time required can be shared and propagated in real time.

Further, according to the low-power wide area disaster safety net system of the present invention, it is possible to minimize human and material damage when an accident occurs in a closed space.

It will be appreciated by those skilled in the art that the effects that may be derived from the present invention are not limited to the foregoing description but are broadly accepted.

FIG. 1 shows an example in which a low-power wide area disaster safety net system according to the present invention is utilized.
FIG. 2 is a block diagram showing the entire low-power wide area disaster safety net system according to the present invention.
3 is a functional block diagram of the sensor unit in the low power wide area disaster safety net system according to the present invention.
FIG. 4 shows a configuration of a cloud server in a low power wide area disaster safety net system according to the present invention.
5 shows a flow chart of a method of operating a low power wide area disaster safety net system in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, various embodiments of a low-power wide area disaster safety net system using LPWA communication according to the present invention will be described with reference to the accompanying drawings.

The components, features, steps, and components referred to in this specification as being " comprising " herein mean that there is a corresponding component, feature, step, and component, It should be understood that they do not exclude equivalents. Also, it is noted that the present invention includes plural forms as long as not specifically mentioned in the specification. In other words, it should be noted that elements such as the term " comprises " herein may mean the presence or addition of one or more other elements or the like.

Although the terms 'first', 'second' and the like are used herein to describe various components, the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Refers to a fixed station that is used to communicate with access terminals, which may be referred to as a node, an eNodeB, an HeNB, or some other terminology, the access point including a random access point, It should be understood that the term refers to various objects having functions for communicating with terminals, regardless of terms referred to in the market, such as a relay access point, a router access point, and the like.

The term 'terminal' is used herein to refer to a mobile station (MS), a mobile terminal (MT), a subscriber station, a portable subscriber station (MS), a user equipment (UE) , An access terminal (AT), and the like, and includes a user-type electronic device including all or some functions of a mobile station, a mobile terminal, a subscriber-station, a mobile subscriber station, a user device, It may be a communication device.

In addition, although technical terms used throughout this specification have selected the general technical terms that are currently in common use, in some cases, there are also terms selected arbitrarily by the present applicant. In this case, The meaning should be understood in the context of the context in which it is described or used.

FIG. 1 shows an example in which a low-power wide area disaster safety net system according to the present invention is utilized. All the building facilities, like the exemplary, optional building (1), are constructed differently according to the various requirements and competencies of relevant laws, clients, and contractors, and the structures of the entrance and exit in these facilities are all different. As shown in the enlarged view (1-X) of the building facility (1), when a fire occurs at an arbitrary point (X), the low power wide area disaster safety net system according to the present invention is applied to the building (1) If people installed an application (application) distributed by the operator / manager in a low-power wide-area disaster safety net system to the terminal 10 owned by the person, or by emergency letters, a multimedia message, It is possible not only to receive the positional information (Y) identified by the individual terminal 10 and the positional information Z of the nearest exit from the corresponding positional information, It is possible to receive the route information YZ reaching the destination Z of the route.

FIG. 2 shows a general configuration diagram of a low power wide area disaster safety net system according to the present invention. As shown in the figure, the low power wide area disaster safety net system 100 includes a sensor unit 20 capable of monitoring the presence or absence of a fire and a noxious gas concentration, a display direction guide for guiding the direction of the exit, (40) for informing a final exit in accordance with the direction of the exit, and a control unit for receiving monitoring information from the sensor unit in real time to derive a path of the final exit, And a cloud server 50 for transmitting a control command to the display direction guide etc. and the emergency exit marker guide. Although not shown in FIG. 2, the terminal 10 capable of receiving route information from the cloud server 50 to the final exit, as described with reference to FIG. 1, (Not shown) for expanding the coverage of up to 10 channels. 2 shows a single sensor unit 20, five display direction indicators 30, three emergency exit marker lights 40 and a single cloud server 50, the sensor unit 20, Note that the number of the display direction guide 30 and the emergency exit marker 40 are not limited to the number and the number may be varied according to the specifications of the cloud server 50. [

3, the sensor unit 20 may include a fire detection sensor unit 21, a toxic gas sensor unit 22, a communication unit 23, and a control unit 24, The sensor unit 21 and the toxic gas sensor unit 22 may be integrated into a single configuration.

The fire detection sensor unit 21 can sense a fire in a proximity range from the sensor unit by measuring a temperature or by an ultraviolet ray or an infrared ray detection function. The toxic gas sensor unit 22 detects hydrogen chloride (HCl) (CO), chlorine, nitrogen oxides, SO ₂ , HCN, NH 3, CO ₂ , CO ₂ , hydrogen sulfide, Toxic gas has leaked when a predetermined number of toxic gases exceed the steady-state concentration range for each type of toxic gas preset in the sensor unit 22, such as acrylcholene (CHCHCHO), and accordingly, .

When it is determined that evacuation of people is required by any one of the information measured by the fire detection sensor unit 21 and the information detected by the toxic gas sensor unit 22, the communication unit 23 may transmit the information to the cloud And sent to the server 50 immediately. May be transmitted to the display direction guide light 30 and the emergency exit marker light 40 in addition to being transmitted to the cloud server 50. [

The display direction guide 30 is for guiding the direction of the exit. For example, the display direction guide 30 may be constituted by an X mark for propagating a matter that is dangerous when entering the front, rear, left, right, .

The emergency exit marker 40 serves to inform the final exit in accordance with the direction guided by the display direction guide 30.

The display direction guide 30 and the emergency exit marker guide 40 are implemented on the basis of LEDs so that control of illuminance, chroma, direction, and landmark guide direction is controlled by a dimmer, which is interlocked with the cloud server 50. [ Lt; / RTI > For example, while the sensor unit 20 is being detected as being in a steady state, the emergency exit indicator light 40 is turned on in a steady state with a low illuminance and the display direction indicator 30 is off, The display direction guiding light 30 (see FIG. 3) is displayed by the cloud server 50 or by the setting values inherent in the display direction guiding light 30 and the emergency exit marker light 40 ) And the emergency exit marker light 40 can all be turned on by high illuminance and saturation.

On the other hand, the cloud server 50 receives information received from the sensor unit 20, that is, monitored risk occurrence information in real time, immediately recognizes where the final exit is located in the building facility, The terminal can request location information. In the process of requesting the location information, a repeater may be established between the cloud server 50 and the terminal for the purpose of extending the coverage, and in some cases, the function unit of the repeater may be integrally implemented in the cloud server 50 Of course it is.

The sensor unit 20, the display direction guide 30, the emergency exit marker 40, and the cloud server 50 described above can communicate with each other by the sensor mesh network cloud. In the first embodiment, the first communication network between the sensor unit 20 and the display direction indicator 30 is communicated by the LPWA communication network. Alternatively, as the second embodiment, the sensor unit 20 and the emergency- The third communication network between the display direction guide light 30 and the emergency exit marker light 40 can be realized by the second communication network between the guide lights 40 and the LPWA communication network, LPWA communication network.

The LPWA (Low Power Wide Area) communication network uses the SX1276 communication chipset to combine with the wireless antenna with transmission distance, battery operation and interference tolerance, so that it can be used in a dense area of the city, Range and coverage within a coverage of more than 3 km in open space, thereby establishing a wireless infrastructure within the building at a low cost.

The LPWA communication network can implement a data transmission rate of 0.010 to 50 kbps using a frequency in the band of 137 MHz to 1020 MHz, a bandwidth of 5 to 500 kHz, a data transmission rate of 1.5 ㎂ in the idle state, 11.5 mA in the reception, While the maximum transmit power is +20 dBm, while consuming a low power of 29 mA.

In the low power wide area disaster safety network system according to the present invention, at least one of the communication network associated with the cloud server 50, that is, the sensor unit 20, the display direction guide 30 and the emergency exit marker guide 40, (50) can be data communication by a wired communication network, a third generation communication network, an LTE communication network, an LTE-A communication network, and a fifth generation communication network under research and development for commercialization in IEEE. This is because data amount and speed that are not covered by data transmission / reception by the LPWA communication network are required for data communication with the cloud server 50.

According to such a low-power wide-area disaster safety net system, it can be applied to building facilities and can be applied irrespective of the type and form of a door, and the location of a disaster in case of a disaster in the facility and the position of a near- It is recognized that not only the effect of sharing and propagating the route and the time information to the real time can be recognized, but also the effect of minimizing the human and material damage when an accident occurs in the closed space is recognized.

FIG. 4 shows a configuration of a cloud server in a low power wide area disaster safety net system according to the present invention. The cloud server 50 includes a virtual machine 50A consisting of a virtual memory unit 51 for storing incidental data in the disaster safety net system and for data processing, a SAN (Storage Area Network) for switching between physical servers, A physical hardware 50B including a switch unit 52, a SAN storage unit 53 interlocked with the SAN switch unit 52, a cloud manager 54 as an embedded node, and a cloud rack 55 Lt; / RTI >

5 shows a flow chart of a method of operating a low power wide area disaster safety net system in accordance with the present invention.

First, the sensor unit 20 (FIG. 2) monitors the toxic gas concentration and determines whether it exceeds the predetermined steady-state concentration range (step S10).

When it is determined that the toxic gas concentration has exceeded the steady-state concentration range, or when a fire is detected, the display direction guidance lamp (30 in FIG. 2) and the emergency exit marker lamp (40 in FIG. 2) Step S20).

Next, when the emergency exit marker (40 in FIG. 2) is activated, the abnormal state notification signal is transmitted to the cloud server (50 in FIG. 2) (S30).

Then, the cloud server calculates a fire point by positioning the sensor unit detected as a fire occurrence, and derives the evacuation route to the location information of the exit of the emergency exit located in the entire facility in which the system is constructed (step S40) And the derived evacuation path information is transmitted to the user terminal (S50).

Such a method of operating the low power wide area disaster safety net system can be implemented in the form of a computer readable storage medium coded by a computer program, which can be interlocked with an application for operating in a user terminal.

It should be understood that the example modules, logic blocks, means, steps or combinations thereof in connection with the embodiments described herein may be implemented as electronic hardware (digital designs designed by coding or the like), software (various types of applications including program instructions) Or a combination of these. Hardware, and / or software may vary depending on design constraints imposed on the user terminal.

In some implementations, one or more of the configurations described herein may be stored in memory as computer program instructions, which may execute the methods described herein, centering on a digital signal processor. It is to be understood that the connections between the components specified with reference to the drawings attached hereto are merely illustrative and at least some of them may be omitted or, conversely, may include additional components as well as these components.

It should be understood that the example modules, logic blocks, means, steps or combinations thereof in connection with the embodiments described herein may be implemented as electronic hardware (digital designs designed by coding or the like), software (various types of applications including program instructions) Or a combination of these. Hardware, and / or software may vary depending on design constraints imposed on the user terminal.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the particular forms disclosed. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: Building facilities
10: Terminal
20:
21: Fire detection sensor unit
22: Toxic gas sensor unit
23:
24:
30: Display direction light
40: Emergency exit marker lights
50: Cloud server

Claims (9)

A sensor part capable of monitoring the fire and the concentration of harmful gas;
A display direction guide for guiding the direction of the exit and guiding the exit of the dangerous area;
An emergency exit marker for informing a final emergency exit according to the direction of the derived emergency exit; And
And a cloud server for receiving monitoring information from the sensor unit in real time, deriving a path of the final exit, and transmitting a control command for the display direction guide,
Low power wide area disaster safety net system.
The method according to claim 1,
Characterized in that the display direction guide light and the emergency exit marker guide are based on LEDs.
Low power wide area disaster safety net system.
3. The method of claim 2,
Wherein the first communication network between the sensor unit and the display direction guide is a data communication performed by an LPWA (Low Power Wide Area) communication network.
Low power wide area disaster safety net system.
3. The method of claim 2,
Characterized in that the second communication network between the sensor unit and the emergency exit marker guide is communicated by the LPWA communication network.
Low power wide area disaster safety net system.
3. The method of claim 2,
Characterized in that the third communication network between the display direction guide and the emergency exit marker guide is data communication carried out by the LPWA communication network.
6. The method according to any one of claims 3 to 5,
Wherein the cloud server is communicable with each other by a sensor mesh network cloud such as the sensor unit, the display direction guide, and the emergency exit marker guide.
Low power wide area disaster safety net system.
6. The method according to any one of claims 3 to 5,
The fourth communication network between the sensor unit, the display direction guide, and the emergency exit sign guide and the cloud server is connected to the wired communication network, the third generation communication network, the LTE communication network, the LTE-A communication network ≪ / RTI >
Low power wide area disaster safety net system.
3. The method of claim 2,
A user terminal capable of receiving information on the route from the cloud server to the final exit; And
Further comprising a repeater for extending coverage from the cloud server to the user terminal,
Low power wide area disaster safety net system.
A computer program for operating a low power wide area disaster safety net system,
The computer readable storage medium comprising:
Monitoring the toxic gas concentration to determine whether it exceeds a predetermined steady state concentration range;
Instructions for activating a display direction guide light and an emergency exit marker guide when it is determined that the toxic gas concentration exceeds the steady-state concentration range or when a fire is detected;
An instruction for transmitting an abnormal state notification signal to the cloud server by activating the emergency exit marker guide or the like;
A command for calculating a point of fire occurrence by positioning the sensor unit detected as a fire occurrence in the cloud server and deriving an evacuation path up to the location information of the exit of the facility located in the entire facility where the system is installed; And
Instructions for sending evacuation path information derived from the cloud server to a user terminal;
/ RTI >
Computer readable storage medium.

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