KR102598000B1 - Positioning device and method for firefighters of firefighting wireless communication equipment - Google Patents

Abstract

The present invention discloses a firefighter positioning device and method for firefighting wireless communication auxiliary equipment. The present invention uses wireless communication auxiliary equipment at the command and control center to quickly determine the situation for the rescue of firefighters who are dispatched to a disaster area and are performing rescue activities, and dispatches firefighters located nearby to rescue the firefighter. It is characterized by enabling rapid rescue activities.

Description

{Positioning device and method for firefighters of firefighting wireless communication equipment}

The present invention relates to a positioning technology for firefighters dispatched to a disaster area. More specifically, the command and control center uses wireless communication auxiliary equipment to confirm the location of firefighters dispatched to a disaster area and performing rescue activities in real time and quickly This relates to a device and method for firefighter positioning using firefighting wireless communication equipment that enables rescue activities.

Generally, when a fire or disaster occurs, firefighters are dispatched to the scene, and the command and control center needs to check the location and safety status of firefighters in order to direct firefighters active at the scene in real time.

If an accident or injury occurs to a firefighter active in the field or a request for assistance occurs, the command and control center needs prompt support, and if necessary, dispatch of nearby firefighters.

As a prior art for such command and control, there is Republic of Korea Patent No. 10-1751960 (Personal safety notification device for firefighters). In this conventional technology, a motion sensor detects when a firefighter falls to the floor and does not move for a certain period of time due to building collapse or toxic gas suffocation when extinguishing a fire, and directly generates ultrasonic waves from the audio buzzer to facilitate the firefighter's location tracking. .

However, this prior art requires an ultrasonic receiver to be installed in the command and control room to track the location of firefighters, and it is difficult not only to confirm the location of firefighters before an accident, but also to specify the location of the accident.

Another prior art is Korean Patent Publication No. 10-2016-0073755 (Personal alarm safety system and method for calling emergency situations). In this prior art, emergency signals are transmitted using short-distance firefighting wireless communication (zigbee), and a mesh topology or ad-hoc network is used between the personal alarm safety systems that firefighters attach to their bodies. It is designed to form. Additionally, if there is a wireless sensor node already installed in the building, emergency signals are transmitted using the wireless sensor node.

However, this prior art has a very low possibility of using wireless sensor nodes in fire areas, and when an emergency occurs and there are no fellow firefighters nearby, a mesh topology or ad-hoc network is formed. There is a problem that makes emergency rescue difficult due to this difficulty.

The purpose of the present invention is to use wireless communication facilities at the command and control center to quickly determine the location of firefighters who are dispatched to a disaster area and performing rescue activities, and to dispatch firefighters located nearby to provide information on firefighters subject to rescue. The purpose is to provide a device and method for positioning firefighters using firefighting wireless communication equipment to enable rapid rescue operations.

In order to achieve the above object, the firefighter positioning device of the firefighting wireless communication facility according to the present invention is a donor unit installed outside the building to transmit and receive firefighting and business wireless signals, FM signals, and DMB (Digital Multimedia Broadcasting) signals: a main unit that distributes and transmits the donor unit signal transmitted from the donor unit, and combines the received remote unit signals to transmit to the donor unit; And remote units that are fixedly installed in each shaded area of each floor in the building to transmit and service the firefighting signal, business signal, FM signal, and DMB signal; wherein the remote units are radios of firefighters dispatched to the fire scene. A power detector that detects the power level of a firefighting signal or business signal transmitted from and outputs a power detection signal accordingly; And a third microprocessor that calculates the distance between the remote unit and the firefighter on the floor of the building by substituting the power detection signal into the in-building radio wave attenuation level equation, wherein the main unit is the first of the remote units. 3It includes a second microprocessor that estimates the location of the firefighter using distances received from the microprocessor.

In addition, the power detector includes: a first power detector that detects the power of a fire-fighting signal transmitted to the donor unit through a corresponding remote unit and outputs a first power detection signal at a corresponding level; And a second power detector that detects the power of the business signal transmitted to the donor unit through the corresponding remote unit and outputs a second power detection signal at the corresponding level.

In addition, the third microprocessor calculates the distance between the remote unit and the firefighter by substituting the first power detection signal or the second power detection signal into the in-building radio wave attenuation level equation.

In addition, the second microprocessor estimates the position of the firefighter as the location of the overlap of circles whose radii are a plurality of distances received from the third microprocessor of the remote units installed on the same floor of the building. Do it as

In addition, the remote unit includes a first band filter for band filtering the firefighting signal supplied through the radio and the second multiplexer; a low-noise amplifier for low-noise amplifying the signal band-filtered in the first band-pass filter; A mixer that mixes the signal in the microwave band supplied from the low noise amplifier with the local oscillation signal of the oscillator and converts it into a signal in the microwave band; a second band filter for band filtering the microwave band signal supplied from the mixer; an automatic gain controller that automatically adjusts and outputs the gain of the signal supplied from the second band filter; And a high-output amplifier that amplifies the signal supplied from the automatic gain controller to high output.

In addition, the distance calculated by the third microprocessor is transmitted to the second microprocessor through a modem.

In addition, the main unit converts and outputs firefighting signals, business signals, FM signals, and DMB signals received in a combined form into a branched form, and converts and outputs the signals received through the opposite path into a combined form. 3 multiplexer and 4 multiplexer; a fire-fighting signal receiving unit that receives and processes the fire-fighting signal supplied from the third multiplexer; a fire-fighting signal transmission unit that transmits and processes fire-fighting signals supplied from the fourth multiplexer; a business signal receiving unit that receives and processes business signals supplied from the third multiplexer; a business signal transmission unit that transmits and processes the business signal supplied from the fourth multiplexer; an FM signal receiving unit that receives and processes the FM signal supplied from the third multiplexer; and a DMB signal receiving unit that receives and processes the DMB signal supplied from the third multiplexer.

In order to achieve the above object, the firefighter positioning method of the firefighting wireless communication facility according to the present invention is to receive a firefighting signal or business signal transmitted from a radio carried by the firefighter from remote units fixedly installed in the shaded area of each floor in the building. A power level detection step of detecting and outputting a power detection signal accordingly; A distance calculation step in which the remote units calculate the distance between the remote unit and the firefighter by substituting the power detection signal into an in-building radio wave attenuation level equation; and a firefighter position estimation step in which the main unit estimates the position of the firefighter as the position of the firefighter, with the overlapped position of circles having radii being a plurality of distances received from the remote units installed on the same floor of the building.

In addition, the main unit is characterized in that it estimates the floor on which the firefighter is located based on the installation positions of the remote units.

According to the firefighter location positioning device and method of the firefighting wireless communication facility according to the present invention, the location of firefighters deployed to the disaster scene can be confirmed in real time, and when an emergency situation occurs, the command and control center can quickly and accurately determine the location of the firefighter and rescue the firefighter. There is an effect.

Figure 1 is an overall block diagram of a firefighter positioning device in a firefighting wireless communication facility according to an embodiment of the present invention.
Figure 2 is a detailed block diagram of a donor unit.
Figure 3 is a detailed block diagram of the main unit.
Figure 4 is a detailed block diagram of the remote unit.
Figure 5 is a diagram illustrating the principle of positioning a firefighter according to the present invention.
Figure 6 is a flowchart of a firefighter location location method of a firefighting wireless communication facility according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. First, it should be noted that when adding reference numerals to components in each drawing, the same components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, in describing the present invention, if a detailed description of a related known configuration or function is determined to be obvious to those skilled in the art or may obscure the gist of the present invention, the detailed description will be omitted.

Figure 1 is an overall block diagram of the firefighter location determination device of the firefighting wireless communication facility according to an embodiment of the present invention, Figure 2 is a detailed block diagram of the donor unit, Figure 3 is a detailed block diagram of the main unit, and Figure 4 is a detailed block diagram of the main unit. It is a detailed block diagram of the remote unit, and Figure 5 is an explanatory diagram of the principle of positioning a firefighter according to the present invention.

Referring to Figure 1, the firefighter positioning device of the firefighting wireless communication facility according to the present invention includes a donor unit (DU: Donor Unit) 100; It includes a main unit (MU: Main Unit) 200 and a plurality of remote units (RU: Remote Units) 300.

The operation of the firefighter positioning device of the firefighting wireless communication facility according to the present invention configured as described above will be described with reference to FIGS. 2 to 5 as follows. Here, a firefighter is a person who carries a radio and is deployed to a disaster site to take disaster measures under command and control from a command and control center where the main unit 200 is installed.

The donor unit 100 is installed outside the building and transmits and receives firefighting wireless signals, business wireless signals, FM signals, and DMB (Digital Multimedia Broadcasting) signals.

For this purpose, the donor unit 100 includes a first multiplexer (110A) and a second multiplexer (110B), a fire-fighting signal receiver (120R) and a fire-fighting signal transmitter (120T), a business signal receiver (130R) and a business signal transmitter (130T), It includes an FM signal receiver 140, a DMB signal receiver 150, a first modem 160, and a first microprocessor 170.

The first multiplexer (110A) converts and outputs firefighting signals, business signals, FM signals, and DMB signals received in a combined form through the antenna (ANT100) into branched forms, and combines the signals received in the opposite path. It is converted into a form and output to the antenna (ANT100).

The fire-fighting signal receiver 120R receives and processes the fire-fighting signal supplied from the first multiplexer 110A. For this purpose, the firefighting signal receiver (120R) includes a first band filter (121R), a low noise amplifier (LNA) (122R), an oscillator (123R), a mixer (124R), a second band filter (125R), and an automatic gain controller (126R). ) and a high-power amplifier (127R).

The first band filter (121R) band filters the firefighting signal supplied from the first multiplexer (110A). The low noise amplifier (LNA) 122R amplifies the weak signal band-filtered by the first band filter 121R with low noise. The mixer 124R mixes the signal in the microwave (e.g., 450 MHz) band supplied from the low-noise amplifier 122R with the local oscillation signal of the oscillator 123R and converts it into a signal in the ultra-high wave (e.g., 20 to 70 MHz) band. The second band filter 125R band filters the signal in the microwave band supplied from the mixer 124R. The automatic gain controller 126R automatically adjusts and outputs the gain of the signal supplied from the second band filter 125R. The high-output amplifier 127R amplifies the signal supplied from the automatic gain controller 126R to high output.

The fire-fighting signal transmitter 120T transmits and processes the fire-fighting signal supplied from the second multiplexer 110B. For this purpose, the firefighting signal transmitter (120T) includes a first band filter (121T), a low noise amplifier (LNA) (122T), an oscillator (123T), a mixer (124T), a second band filter (125T), and an automatic gain controller (126T). ) and a high-power amplifier (127T).

The first band filter (121T) band filters the firefighting signal supplied from the second multiplexer (110B). The low noise amplifier (LNA) 122T amplifies the signal band-filtered by the first band filter 121T with low noise. The mixer 124T mixes the signal in the microwave (e.g., 20 to 70 MHz) band supplied from the low-noise amplifier 122T with the local oscillation signal of the oscillator 123T and converts it into a signal in the microwave (e.g., 450 MHz) band. The second band filter 125T band-filters the signal in the microwave band supplied from the mixer 124T. The automatic gain controller 126T automatically adjusts and outputs the gain of the signal supplied from the second band filter 125T. The high-output amplifier 127T amplifies the signal supplied from the automatic gain controller 126T to high output.

The business signal receiver 130R receives and processes the business signal supplied from the first multiplexer 110A in the same way that the fire-fighting signal receiver 120R receives and processes the fire-fighting signal.

For this purpose, the business signal receiver (130R) includes a first band filter (131R), a low noise amplifier (132R), an oscillator (133R), a mixer (134R), a second band filter (135R), an automatic gain controller (136R), and a high output amplifier. Includes (137R).

The business signal transmission unit 130T transmits and processes the business signal supplied from the second multiplexer 110B in the same way that the firefighting signal transmission unit 120T transmits and processes the firefighting signal. For this purpose, the business signal transmitter (130T) includes a first band filter (131T), a low noise amplifier (132T), an oscillator (133T), a mixer (134T), a second band filter (135T), an automatic gain controller (136T), and a high output amplifier. Includes (137T).

The FM signal receiver 140 receives and processes the FM signal supplied from the first multiplexer 110A. For this purpose, the FM signal receiver 140 includes a band filter 141, a low noise amplifier 142, an automatic gain controller 143, and a high output amplifier 144.

The band filter 141 band filters the FM signal supplied from the first multiplexer 110A. The low-noise amplifier 142 amplifies the weak signal band-filtered by the band-pass filter 141 with low noise. The automatic gain controller 143 automatically adjusts and outputs the gain of the signal supplied from the low noise amplifier 142. The high-output amplifier 144 amplifies the signal supplied from the automatic gain controller 143 to high output.

The DMB signal receiver 150 receives and processes the DMB signal supplied from the first multiplexer 110A like the FM signal receiver 140. For this purpose, the DMB signal receiving unit 150 includes a bandpass filter 151, a low noise amplifier 152, an automatic gain controller 153, and a high output amplifier 154.

The second multiplexer (110B) converts the signals supplied from the firefighting signal receiver (120R), the business signal receiver (130R), the FM signal receiver (140), and the DMB signal receiver (150) into a combined form and converts them into a combined form ( 200), and the combined signals supplied from the main unit 200 are converted into branched forms and output to the firefighting signal transmission unit 120T and the business signal transmission unit 130T.

The first microprocessor 170 receives control from the main unit 200 through the first modem 160 and controls each part of the donor unit 100 and performs a monitoring function.

The main unit (MU: Main Unit) 200 distributes the donor unit signal transmitted from the donor unit 100 and transmits it to the remote units (300A-300N) installed on each floor of the building, and the remote unit (300) ) transmits remote unit signals received from the donor unit 100, and serves to monitor and control the donor unit 100 and the remote unit 300.

For this purpose, the main unit 200 includes a third multiplexer (210A), a fourth multiplexer (210B), a fire-fighting signal receiver (220R), a fire-fighting signal transmitter (220T), a business signal receiver (230R), and a business signal transmitter (230T). , FM signal receiving unit 240, DMB signal receiving unit 250, DC power supply unit (PSU: Power Supply Unit) (260A), RF (Radio Frequency) combiner (260B), second modem (270A), 3Includes a modem (270B) and a second microprocessor (280).

The third multiplexer (210A) converts and outputs firefighting signals, business signals, FM signals, and DMB signals received in a combined form through the donor unit 100 in a branched form, and outputs the signals received in the opposite path. It is converted into a combined form and output to the donor unit 100.

The fire-fighting signal reception unit (220R), fire-fighting signal transmission unit (220T), business signal reception unit (230R), business signal transmission unit (230T), FM signal reception unit 240, and DMB signal reception unit 250 of the main unit 200 are the above-mentioned dough. The same interior as the fire-fighting signal receiver (120R) and fire-fighting signal transmitter (120T), the business signal receiver (130R) and the business signal transmitter (130T), the FM signal receiver (140), and the DMB signal receiver (150) of the unit 100. It has the same composition and functions the same way.

The fourth multiplexer (210B) converts the signals supplied from the fire-fighting signal receiver (220R), the business signal receiver (230R), the FM signal receiver 240, and the DMB signal receiver 250 into a combined form and outputs the reverse. The signals received through the path are converted into a combined form and output.

The RF combiner 260B converts the signals combined by the fourth multiplexer 210B into a combined RF signal and transmits it to the remote unit 200.

The second microprocessor 280 monitors the status of the donor unit 100 through the second modem 270A and performs remote control, and controls the remote units 300 through the third modem 270B. Monitors the status and performs remote control.

In addition, signals necessary for the service of the command and control center (disaster prevention room) where the main unit 200 is located are transmitted and received through the antenna (ANT200).

Remote units (RU: Remote Units) (300A-300N) are fixedly installed in the shaded area of each floor of the building to service the firefighting signal, business signal, FM signal, and DMB signal.

For this purpose, the remote units (300A-300N) include a 5th multiplexer (310A) and a 6th multiplexer (310B), a firefighting signal receiver (320R) and a firefighting signal transmitter (320T), a business signal receiver (330R), and a business signal transmitter, respectively. (330T), FM signal reception unit 340, DMB signal reception unit 350, fourth modem 360, and third microprocessor 370.

The fifth multiplexer (310A) converts the firefighting signal, business signal, FM signal, and DMB signal transmitted in a combined form from the main unit 200 into a branched form and outputs it, and then wirelessly transmits it from the firefighter's radio. The received signals are converted into a combined form and output to the main unit 200.

The sixth multiplexer (310B) is output through the fifth multiplexer (310A) and then output through the firefighting signal receiver (320R), the business signal receiver (330R), the FM signal receiver (340), and the DMB signal receiver (350). A firefighting signal transmitter converts the individually received signals into a combined form and transmits them to firefighters' radios through an antenna (ANT300), and converts the radio signals received from the radios through the antenna (ANT300) into a branched form. (320T) and output to the business signal transmitter (330T).

The fire-fighting signal receiver (320R) and fire-fighting signal transmitter (320T), the business signal receiver (330R) and the business signal transmitter (330T), the FM signal receiver (340), and the DMB signal receiver (350) of the remote unit (300A-300N) are The fire-fighting signal receiver (120R) and the fire-fighting signal transmitter (120T) of the donor unit 100, the business signal receiver (130R) and the business signal transmitter (130T), the FM signal receiver 140, and the DMB signal receiver 150. They have the same internal structure and function the same.

In addition, the remote units (300A-300N) each include a first power detector 321 and a second power detector 331 for positioning with firefighters dispatched to the fire scene.

The first power detector 321 detects the power of the fire-fighting signal output from the sixth multiplexer 310B to the fire-fighting signal transmitter 320T and outputs a first power detection signal at the corresponding level. Here, the firefighting signal is transmitted wirelessly from the radio of the firefighter dispatched to the fire scene and then transmitted through the antenna (ANT300) and the sixth multiplexer (310B). It's a signal.

The second power detector 331 detects the power of the business signal output from the sixth multiplexer 310B to the business signal transmission unit 330T and outputs a second power detection signal at a level corresponding to the power.

This is a radio signal transmitted wirelessly from the radio of a firefighter dispatched to the fire scene and then transmitted through the antenna (ANT300) and the sixth multiplexer (310B).

The third microprocessor 370 substitutes the first power detection signal detected by the first power detector 321 or the second power detection signal detected by the second power detector 321 into the in-building radio wave attenuation level equation. to calculate the distance between the remote unit and the firefighter (radio). Here, the distance corresponds to the radius of a circle centered on the antenna (ANT300) of the remote unit 300.

As an example of the in-building radio wave attenuation level equation, the following distance-dependent path loss model can be applied. According to this distance-dependent path loss model, indoor path loss increases exponentially with distance.

here, means the average path loss, refers to the reference distance (e.g. 1m), n refers to the average path loss index indicating how quickly the path loss increases with distance, d refers to the distance between the transmitter and receiver, Is It means a zero-mean lognormal distribution with .

The above reference distance is calculated by applying it according to the frequency of use by free space path loss, and the average path index n is determined by considering the shape of the room and objects on the transmission and reception paths. For example, in office and soft partition conditions, n is 2.6, and in office and hard partition conditions, n is 4.

The distance calculated as above from the third microprocessor 370 is transmitted to the second microprocessor 280 of the main unit 200 through the modem 360, the fifth multiplexer 310A, and the modem 270B of the main unit 200. is delivered to

The second microprocessor 280 of the main unit 200 estimates (positions) the location of the firefighter based on the distance between the remote unit and the firefighter (antenna of the radio) received from the remote units 300A-300N. This is explained in more detail with reference to FIG. 5 as follows.

Here, the firefighter's radio is in a state of being able to communicate under the control of the command and control center where the main unit 200 is located, and wirelessly communicates with the main unit 20 through the corresponding remote unit among the remote units 300A-300N. communication is possible.

In Figure 5, the distance between the remote unit (300A) received from the remote unit (300A) and the firefighter is 'a', the distance between the remote unit (300B) received from the remote unit (300B) and the firefighter is 'b', and the remote When the distance between the remote unit (300C) and the firefighter received from the unit (300C) is 'c', the second microprocessor 280 of the main unit 200 determines the location of the firefighter using the distance (a-c). This is an example showing the principle of estimation. Here, the remote units (300A-300C) will be described as an example of being installed on the same floor of the building.

In this case, the second microprocessor 280 estimates the overlapping position of three circles (C1-C3) whose radii are the distance (a-c) as the position (coordinates) of the firefighter. Here, since the remote units (300A-300N) are fixedly installed on the corresponding floor of the building, the floor where the firefighter is located can be confirmed based on their installation location, and the location of the firefighter on the corresponding floor can be determined through the above process. It can be estimated using the plurality of distances obtained.

The command and control center estimates the locations of the firefighters deployed to the disaster scene as described above, enabling quick rescue activities for the firefighters targeted for rescue.

The locations where the remote units (300A-300N) are installed are transmitted from each of the third microprocessors (370) to the second microprocessor (280) of the main unit (200) and stored in a storage device within the main unit (200). do.

For example, when a radio signal (e.g., a first power detection signal, a second power detection signal) is detected from a firefighter's radio only in one remote unit installed on a certain floor, the third microprocessor 370 is configured as described above. As in, the distance between the remote unit and the firefighter (radiophone) is calculated using the in-building radio wave attenuation level equation and transmitted to the second microprocessor 280 of the main unit 200. Accordingly, the second microprocessor 280 recognizes the floor where the firefighter is located based on the distance and displays it on the display device (eg, LCD) of the main unit 200.

As another example, when the radio signal is detected in a plurality of remote units on the same floor among the remote units (300A-300N), the third microprocessor 370 of the remote unit performs in-building as described above. Using the radio wave attenuation level equation, the distance between the remote unit and the firefighter (radio radio) is calculated and transmitted to the second microprocessor 280 of the main unit 200. Accordingly, the second microprocessor 280 of the main unit 200 can estimate the overlapping position of a plurality of circles with each distance as a radius as the position (coordinates) of the firefighter, as described above.

Meanwhile, Figure 6 is a flowchart of a firefighter location location method of a firefighting wireless communication facility according to an embodiment of the present invention.

Referring to FIG. 6, the firefighter location location method of the firefighting wireless communication facility according to the present invention includes a power level detection step (S1), a distance calculation step (S2), and a firefighter location estimation step (S3).

The firefighter positioning method of the firefighting wireless communication equipment of the present invention will be described with reference to FIGS. 1 to 5 as follows.

In the power level detection step (S1), remote units (300A-300N) fixedly installed in the shaded areas of each floor in the building detect firefighting signals or business signals transmitted from radios carried by firefighters and output power detection signals accordingly. do.

In the distance calculation step (S2), the remote units (300A-300N) calculate the distance between the remote unit and the firefighter by substituting the power detection signal into the in-building radio wave attenuation level equation.

In the firefighter location estimation step (S3), the main unit 200 determines the overlapping position of a circle whose radius is a plurality of distances received from the remote units on the same floor of the building among the remote units 300A-300N. It is assumed to be the location of the firefighter. Here, the main unit 200 can estimate the floor where the firefighter is located based on the installation positions of the remote units (300A-300N).

Although the preferred embodiments have been described and illustrated above to illustrate the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described, and does not depart from the scope of the technical idea. Those skilled in the art will appreciate that many changes and modifications are possible to the present invention. Accordingly, all such appropriate changes, modifications and equivalents shall be considered to fall within the scope of the present invention.

100: Donor unit 110A: First multiplexer
110B: 2nd multiplexer 120R: Firefighting signal receiver
120T: Firefighting signal transmitting unit 130R: Business signal receiving unit
130T: Business signal transmitting unit 140: FM signal receiving unit
150: DMB signal receiver 160: 1st modem
170: first microprocessor 200: main unit
300A-300N: remote unit

Claims (9)

Donor unit installed outside the building to transmit and receive wireless signals, FM signals, and DMB (Digital Multimedia Broadcasting) signals for firefighting and business purposes:
a main unit that distributes and transmits the donor unit signal transmitted from the donor unit, and combines the received remote unit signals to transmit to the donor unit; and
Remote units are fixedly installed in each shaded area of each floor in the building to transmit and service the firefighting signal, business signal, FM signal, and DMB signal;
The remote units are
A power detector that detects the power level of a fire-fighting signal or business signal transmitted from the radio of a firefighter dispatched to a fire scene and outputs a power detection signal accordingly; and
A third microprocessor that calculates the distance between the remote unit and the firefighter on the same floor of the building by substituting the power detection signal into the in-building radio wave attenuation level equation,
The main unit is
A firefighter location determination device of a firefighting wireless communication facility, comprising a second microprocessor that estimates the location of the firefighter using distances received from the third microprocessor of the remote units. According to paragraph 1,
The power detector is,
a first power detector that detects the power of the fire-fighting signal transmitted to the donor unit through the corresponding remote unit and outputs a first power detection signal at a corresponding level; and
A second power detector that detects the power of the business signal transmitted to the donor unit through the remote unit and outputs a second power detection signal at the corresponding level. Firefighter positioning of the firefighting wireless communication facility, comprising a. Device. According to paragraph 2,
The third microprocessor is
A firefighter positioning device in a firefighting wireless communication facility, characterized in that the distance between the remote unit and the firefighter is calculated by substituting the first power detection signal or the second power detection signal into the in-building radio wave attenuation level equation. According to claim 1 or 3,
The second microprocessor is
A firefighter in a fire-fighting wireless communication facility, characterized in that the position of the firefighter is estimated as the position of the firefighter by overlapping positions of circles each having a radius of a plurality of distances received from the third microprocessor of the remote units installed on the same floor of the building. Location determination device. According to paragraph 1,
The remote unit is
A first band filter for band filtering the firefighting signal supplied through the radio and the second multiplexer;
a low-noise amplifier for low-noise amplifying the signal band-filtered in the first band-pass filter;
A mixer that mixes the signal in the microwave band supplied from the low noise amplifier with the local oscillation signal of the oscillator and converts it into a signal in the microwave band;
a second band filter for band filtering the microwave band signal supplied from the mixer;
an automatic gain controller that automatically adjusts and outputs the gain of the signal supplied from the second band filter; and
A firefighter positioning device for a firefighting wireless communication facility, comprising a firefighting signal transmitter having a high output amplifier that amplifies the signal supplied from the automatic gain controller to high output. According to paragraph 1,
A firefighter positioning device in a firefighting wireless communication facility, characterized in that the distance obtained from the third microprocessor is transmitted to the second microprocessor through a modem. According to paragraph 1,
The main unit is
A third multiplexer and a fourth multiplexer convert and output firefighting signals, business signals, FM signals and DMB signals received in a combined form into a branched form, and convert and output the signals received in the opposite path into a combined form. ;
a fire-fighting signal receiving unit that receives and processes the fire-fighting signal supplied from the third multiplexer;
a fire-fighting signal transmission unit that transmits and processes fire-fighting signals supplied from the fourth multiplexer;
a business signal receiving unit that receives and processes business signals supplied from the third multiplexer;
a business signal transmission unit that transmits and processes the business signal supplied from the fourth multiplexer;
an FM signal receiving unit that receives and processes the FM signal supplied from the third multiplexer; and
A DMB signal receiver that receives and processes the DMB signal supplied from the third multiplexer. delete delete

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