WO2011096620A1 - Système de secours d'urgence et procédé de détection d'emplacement - Google Patents

Système de secours d'urgence et procédé de détection d'emplacement Download PDF

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Publication number
WO2011096620A1
WO2011096620A1 PCT/KR2010/001998 KR2010001998W WO2011096620A1 WO 2011096620 A1 WO2011096620 A1 WO 2011096620A1 KR 2010001998 W KR2010001998 W KR 2010001998W WO 2011096620 A1 WO2011096620 A1 WO 2011096620A1
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WO
WIPO (PCT)
Prior art keywords
rescue
signal
emergency
emergency rescue
location
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PCT/KR2010/001998
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English (en)
Korean (ko)
Inventor
최영완
이정우
권영빈
박재화
박호현
Original Assignee
중앙대학교 산학협력단
서울대학교산학협력단
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Publication of WO2011096620A1 publication Critical patent/WO2011096620A1/fr

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/024—Guidance services
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0277—Communication between units on a local network, e.g. Bluetooth, piconet, zigbee, Wireless Personal Area Networks [WPAN]
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/002—Distress signalling devices, e.g. rescue balloons
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/50—Connection management for emergency connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to an emergency rescue system and a location detection method in the emergency rescue system to quickly and accurately detect the location of the rescue requester in the emergency rescue system and to quickly reach the rescue requester to cope with the emergency situation.
  • Location-based emergency rescue system refers to a series of services that generate an emergency rescue signal from an emergency patient or a person in need of an emergency rescue when an emergency situation occurs and the emergency response team receives and handles the emergency.
  • location technology is required to ensure the reliability of the generation, transmission and reception of emergency signals and the accuracy of signal generation locations.
  • Embodiments of the present invention for solving the above problems are to provide an emergency rescue system and a location detection method in the emergency rescue system that can accurately and quickly detect the location of the rescue requester.
  • the present invention also provides an emergency rescue system and a position detection method capable of maintaining a long time communication state by transmitting an emergency rescue signal using a ZigBee module having high power efficiency.
  • Another object of the present invention is to provide an emergency rescue system and a location detection method capable of directly detecting a location of a rescue requester at a rescue team.
  • a rescue requester can easily and quickly generate an emergency rescue signal in an emergency situation, and a signal broadcast from the Zigbee module in the rescue team
  • An emergency rescue system is disclosed that can accurately and quickly detect the location of a rescue requester.
  • the emergency rescue system includes a ZigBee module which is provided by the rescue requester and generates an emergency rescue signal, a terminal receiving the emergency rescue signal and transmitting emergency rescue signal information to a central control room using a normal communication network.
  • the central control room detects a wide area position at a location of the corresponding terminal and moves to the wide area location to directly receive the emergency rescue signal generated from the Zigbee module. It can be configured to include a rescue team to detect the position of the Zigbee module.
  • the Zigbee module is configured to continuously broadcast the emergency rescue signal after initially transmitting the emergency rescue signal to the terminal.
  • the terminal has an operation of detecting an error of the emergency rescue signal through a cyclic redundancy check (CRC) according to an Automatic Repeat Request (ARQ) protocol.
  • CRC cyclic redundancy check
  • ARQ Automatic Repeat Request
  • NAK negative acknowledgment
  • the Zigbee module transmits an acknowledgment signal and transmits the emergency rescue signal information to the central control room using a normal communication network.
  • the rescue team may include a map display unit for confirming the location of the rescue requester by comparing the strength of the emergency rescue signal received at the wide area location.
  • the ZigBee module can be easily carried by the rescue requester, can always be carried, and can be carried in a location with good access for easy operation in an emergency situation.
  • the Zigbee module may have a detachable form to be carried by the rescue requester or may be embedded in the belongings of the rescue requester.
  • the method for detecting the location of the rescue requester in the emergency rescue system, the rescue requester using the Zigbee module to generate an emergency rescue signal Receiving the emergency rescue signal in the terminal and transmitting the emergency rescue signal information using the existing communication network, Detecting the global location through the location of the terminal that delivered the information, Rescue team is moved to the detected wide area location Receiving, by the rescue team, the emergency rescue signal at the wide-area position, detecting a candidate region having a strength of the received emergency rescue signal greater than a preset reference value, and determining the range of the candidate region and the preset reference region. Comparing the ranges and determining a target location that is the location of the rescue requester.
  • the Zigbee module continuously broadcasts the emergency rescue signal until the rescue requester is rescued.
  • the rescue team can directly and accurately detect the location of the rescue requester by directly receiving an emergency rescue signal broadcast from the Zigbee module at a wide area location.
  • the rescue requester is operable to transmit the emergency signal to the terminal that is carried or located within a certain range from the Zigbee module.
  • the comparing of the ranges may include: moving to a new position, receiving the emergency rescue signal, and detecting the candidate region if the range of the candidate region is greater than the range of the reference region; If the range of the region is smaller than the range of the reference region, the location may be determined that the rescue requester is present in the candidate region. If the range of the candidate area is greater than the range of the reference area, the method may include detecting an intersection area where the candidate area detected before the movement and the candidate area detected after the movement intersect.
  • the movement position may be predicted to be located in the direction in which the strength of the received emergency rescue signal is the greatest.
  • the terminal is provided with a step of detecting an error of the emergency signal.
  • the error detecting step may include determining an error of the emergency rescue signal and transmitting a negative acknowledgment (NAK) signal to the Zigbee module when the emergency rescue signal is determined to be an error. And transmitting an acknowledgment (ACK) signal to the Zigbee module when it is determined that the emergency rescue signal is not an error.
  • NAK negative acknowledgment
  • ACK acknowledgment
  • the error detection step if it is determined that the emergency rescue signal is not an error may include the step of transmitting a response character to the Zigbee module and confirming the identification information of the Zigbee module.
  • the emergency rescue signal may be transmitted to the terminal at a remote location within a certain distance.
  • the rescue requester may generate an emergency rescue signal even when the GPS-based service is provided in a place such as indoors, there is no restriction in using the Zigbee module.
  • the ZigBee module has a packet structure suitable for transmitting an emergency rescue signal, and has a high power efficiency, thereby maintaining a communication state for a long time, thereby effectively generating an emergency rescue signal.
  • the rescue team since the rescue team directly detects the location of the rescue requester by directly receiving the emergency signal generated from the Zigbee module, the rescue team can quickly and accurately detect the location of the rescue requester and can effectively respond to the emergency rescue situation.
  • the Zigbee module can be easily carried by the rescue requester and can be mounted on the rescue requester's belongings, thereby improving aesthetics.
  • FIG. 1 is a schematic diagram of an emergency rescue system according to an embodiment of the present invention.
  • FIG. 2 is a block diagram illustrating an operation of the emergency rescue system of FIG. 1.
  • FIG. 3 is a block diagram illustrating an error detection operation of an emergency rescue signal in the emergency rescue system of FIG. 1.
  • FIG. 4 is a flowchart illustrating a position detection method in the emergency rescue system according to an embodiment of the present invention.
  • FIG. 5 is a flowchart illustrating an error detection method of an emergency rescue signal in FIG. 4.
  • FIG. 6 is a view for explaining a position detection method in an emergency rescue system according to an embodiment of the present invention.
  • FIG. 6 is a map display unit illustrating a reception strength of an emergency rescue signal at a first location.
  • FIG. 7 is a reception intensity panorama showing the signal strength with respect to the azimuth of the received emergency rescue signal.
  • FIG. 8 is a map display showing reception strength of emergency rescue signals in first to third positions.
  • Figure 1 is a schematic diagram of an emergency rescue system according to an embodiment of the present invention
  • Figure 2 is a block diagram for explaining the operation of the emergency rescue system of Figure 1
  • Figure 3 is an emergency rescue system of Figure 1 It is a block diagram for explaining the error detection operation of a rescue signal.
  • the emergency rescue system may include a Zigbee module 100, a terminal 200, a central control room 300, and a rescue team 400.
  • the ZigBee module 100 is a portable device provided by the rescue requester and generates a signal of a predetermined frequency band so that the rescue requester can generate an emergency rescue signal in an emergency situation.
  • the Zigbee module 100 is a communication module capable of short-range communication, and may transmit an emergency rescue signal to the terminal 200 located in the short distance from the rescue requester carrying or the rescue requester (S1).
  • the ZigBee module 100 has a form that the rescue requester can carry in a convenient position so that it can be easily carried in normal but easily operated in an emergency situation.
  • the Zigbee module 100 may be formed in a small size and may have a form that can be attached or detached to a garment or a bag of a rescue requester.
  • the Zigbee module 100 may have a form embedded in an article (eg, accessories such as glasses, watches, necklaces, earrings, etc.) that the rescue requester can always carry.
  • the Zigbee module 100 may transmit a signal in a low rate personal area network operating at 868 MHz, 902 to 928 MHz, and 2.4 GHz, and communicate with the Zigbee module 100.
  • (A1) is able to communicate with peripherals which are typically at a distance of 250-500m.
  • the rescue requester may generate an emergency rescue signal through a simple operation (for example, an action of operating a button or a switch) in an emergency situation, and the terminal 200 Emergency rescue signals can be generated without manipulation.
  • the Zigbee module 100 is capable of short-range communication, even if the rescue requester is not carrying the terminal 200, the rescue requester may transmit an emergency rescue signal to the terminal 200 within a predetermined distance. It is possible to generate and transmit emergency rescue signals at remote locations, even in emergency situations where access and manipulation are not possible.
  • the ZigBee module 100 has a structure suitable for transmitting an emergency signal, and has a high power efficiency, so that the Zigbee module 100 can maintain a communication state for a long time, thereby effectively generating an emergency rescue signal.
  • the emergency rescue signal does not require a large amount of data, it can be configured as a short packet, the ZigBee module 100 can reduce the amount of power when transmitting the emergency rescue signal, it is possible to send a signal for a long time, intermittently and quickly Transmission is possible.
  • the emergency rescue signal transmitted from the Zigbee module 100 is information on whether an emergency rescue signal is generated in the central control room 300 by using the normal communication network 201 in the terminal 200 (hereinafter, 'emergency rescue signal information'). Is transmitted).
  • the 'terminal 200' is a portable electronic device such as a mobile phone, a personal digital assistant (PDA), a smart phone, a handheld PC, and the like, and includes a code division multiplexing access (CDMA) module or a wired / wireless LAN card.
  • Including a predetermined radio wave transmission and reception module includes a device capable of long-range wireless communication.
  • the emergency signal information may include information such as time, device information of the terminal 200, and device information of the Zigbee module 100 received by the Zigbee module 100 as well as information on whether the emergency signal is received. Can be.
  • the communication network 201 may include a general wireless communication network such as a general mobile communication network or a repeater.
  • the terminal 200 detects an error of the received emergency rescue signal and transmits emergency rescue signal information to the central control room 300 using the communication network 201 when there is no error in the emergency rescue signal.
  • the terminal 200 may detect an error of the emergency rescue signal.
  • the emergency rescue signal is transmitted in a packet encoded by Cyclic Redundancy Checking (CRC) to determine whether an error occurs in the signal, and the terminal 200 transmits an Automatic Repeat Request (ARQ) protocol. According to the error can be detected in the CRC coded emergency rescue signal.
  • CRC Cyclic Redundancy Checking
  • the terminal 200 transmits an acknowledgment (ACK, acknowledge) signal to the Zigbee module 100 (T2) and is no longer urgent from the Zigbee module 100 to the terminal 200. Do not transmit distress signals.
  • the Zigbee module 100 receives the ACK signal from the terminal 200, the Zigbee module 100 continuously broadcasts an emergency rescue signal so that the position of the Zigbee module 100 can be detected by the rescue team 400.
  • the terminal 200 transmits a negative acknowledgment (NAK) signal indicating that the error is detected to the Zigbee module 100 (T3),
  • the Zigbee module 100 receiving the NAK signal continuously transmits the emergency rescue signal to the terminal 200 until the ACK signal is received (T4).
  • NAK negative acknowledgment
  • the emergency rescue signal includes identification information which is unique data for identification and confirmation of the Zigbee module 100.
  • the terminal 200 confirms the Zigbee module 100 through the received emergency rescue signal.
  • the Zigbee module 100 and the terminal 200 may be initially configured in a pair, and the identification information may be a unique number of the terminal 200. That is, the terminal 200 receiving the emergency rescue signal confirms whether the designated Zigbee module 100 is a pair through the identification information, and transmits the emergency rescue signal information to the central control room using the communication network 201.
  • the central control room 300 detects the location of the rescue requester through the location of the terminal 200 and dispatches a rescue team.
  • the terminal (not shown) in the repeater or base station configuring the mobile communication network used by the terminal 200 to transmit the emergency rescue signal information. The approximate location of 200) can be seen.
  • the central control room 300 may obtain the location information of the terminal 200 from the communication network and detect the wide area location A2 in which the rescue requester may exist in consideration of the range in which the terminal 200 may communicate with the terminal 200.
  • the central control room 300 since the central control room 300 detects the global location A2 from the location information of the terminal 200, the central control room 300 may detect the global location A2 for location tracking without GPS.
  • GPS there is a problem in reliability in a complex terrain or a mountainous terrain that cannot be used indoors and there are many high-rise buildings.
  • GPS detects a wide area location (A2) using the terminal 200 and a general communication network without GPS, The wide area position A2 can be detected with high reliability even in the region.
  • the rescue team 400 includes manpower and equipment that is input to move to the detected wide area location A2 at the request of the central control room 300 to rescue the rescue requester.
  • the rescue team 400 may move by selecting the shortest and optimal path that can be quickly moved from the position of the rescue team 400 to the wide-area position A2.
  • the rescue team 400 receives the emergency rescue signal S2 broadcasted by the Zigbee module 100 after arriving at the wide-area position A2 to detect the position of the Zigbee module 100. That is, the first one emergency rescue signal S1 in the Zigbee module 100 is transmitted to the terminal 200 to inform the central control room 300 that the emergency rescue situation is necessary, and the emergency rescue signal S2 after the successful transmission. ) Is continuously broadcast. In addition, the rescue team 400 may directly detect the position of the Zigbee module 100 by directly receiving the emergency rescue signal S2 continuously broadcast in the Zigbee module 100.
  • the rescue team 400 In order to receive the emergency rescue signal and detect the position of the Zigbee module 100, the rescue team 400 detects the position of the Zigbee module 100 and uses the received strength of the emergency rescue signal transmitted from the Zigbee module 100.
  • a map display unit 410 (see FIGS. 6 and 8) may be provided to detect a moving path of the.
  • the rescue team 400 may move to a wide-area position A2 and search for an optimum movement path for moving to the position of the Zigbee module 100 within the wide-area position A2 (not shown). It may be provided.
  • the rescue team 400 and the map display unit 410 of the present invention are not limited by the drawings, and the rescue team 400 may include substantially various means for receiving a signal and detecting a location of the rescue requester. .
  • FIG. 4 is a flowchart illustrating a location detection method in an emergency rescue system according to an embodiment of the present invention
  • FIG. 5 is a flowchart illustrating an error detection method of an emergency rescue signal in FIG. 4.
  • FIG. 6 is a view for explaining the position detection method of FIG. 4, which is a map display unit showing a reception strength of an emergency rescue signal at a first position
  • FIG. 7 is an azimuth angle of the emergency rescue signal received at a first position.
  • Receive intensity panorama showing signal strength 8 is a map display unit showing the reception strength of the emergency rescue signals in the first to third positions
  • FIG. 9 is a reception intensity panorama of the emergency rescue signals in the first to third positions.
  • the rescue requester operates the Zigbee module 100 to generate an emergency rescue signal (S111).
  • the first emergency signal is transmitted to the terminal 200, and then the emergency signal is continuously broadcast in the Zigbee module 100.
  • the term 'continuous' includes not only continuously transmitting a signal but also intermittently transmitting a signal at predetermined time intervals, and emergency rescue until the rescue team 400 locates the rescue requester and rescues the rescue requester. It means broadcasting a signal.
  • the terminal 200 present in the communication area with the Zigbee module 100 receives the emergency rescue signal transmitted from the Zigbee module 100, detects an error of the received emergency rescue signal, and if there is no error, the central control room Emergency rescue signal information is transmitted to 300 (S112).
  • the terminal 200 when the terminal 200 receives the emergency rescue signal from the terminal 200 as illustrated in FIG. 5 to detect an error of the received emergency rescue signal (S211), the emergency rescue is CRC coded according to the ARQ protocol. An error of the signal is detected (S212). If no error occurs, the ACK signal is transmitted to the ZigBee module 100 (S214), and if the identification information data included in the emergency rescue signal is determined to match, the central control room using a normal communication network is matched. Emergency rescue signal information is transmitted to 300 (S112). If the identification information data does not match, the terminal 200 may ignore the emergency rescue signal and terminate the communication.
  • the NAK signal is transmitted to the Zigbee module 100 (S213), and the Zigbee module 100 receiving the NAK signal retransmits the emergency rescue signal.
  • the terminal 200 receives the emergency rescue signal retransmitted as described above (S211) and repeats the process of detecting the error (S212) while receiving the emergency rescue signal without an error.
  • the central control room 300 confirms that emergency rescue signal information has been transmitted from the terminal 200 (S113), and acquires the position of the terminal 200 from a repeater or a base station, and the terminal 200 and the Zigbee module ( In consideration of the communication range 100, the wide area location A2 of the rescue requester may be detected (S114).
  • the central control room 300 transmits the emergency rescue signal generation to the rescue team 400 and transmits the wide area location (A2) information detected from the location of the terminal 200, the rescue team 400 is a wide area location (A2) To move to (S115).
  • the rescue team 400 moved to the wide area location A2 directly receives the emergency rescue signal S2 that the Zigbee module 100 continuously broadcasts (S116), that is, the location of the Zigbee module 100.
  • the location of the requestor (hereinafter referred to as the 'target location T') is detected.
  • the rescue team 400 since the strength of the emergency rescue signal transmitted directly from the Zigbee module 100 appears to be the largest, the rescue team 400 expects the Zigbee module 100 to be located at the position where the strength of the received emergency rescue signal is strongest. The location of the requestor can be detected.
  • the rescue team 400 may include a map display unit 410 to show the location of the rescue team 400 and to detect the location of the rescue requester.
  • the map display unit 410 may display information such as terrain and structure of the wide area location A2 and map data for showing the location of the rescue team 400 within the wide area location A2. It may include a display device for showing the rescue team 400 as image information.
  • the map display unit 410 may show the result of analyzing the emergency rescue signal received from the rescue team 400 overlapping the map data.
  • the map display unit 410 may be connected to an information system that enables the rescue team 400 to search for an optimum movement path for moving in the wide area location A2 and moving to the target location T.
  • a signal strength panorama of the received emergency signal is created (S117).
  • the emergency rescue signal received from the rescue team 400 may receive signals having different sizes in different directions as the emergency rescue signal is reflected and scattered by buildings or surrounding structures. Can be.
  • the rescue team 400 receives a signal from all directions 360 ° around the position of the rescue team 400 to detect the position and the direction of the Zigbee module 100 and creates an intensity panorama of the received signal according to the azimuth angle.
  • the reception strength of the emergency rescue signal received from the rescue team 400 has a wavelength form that changes in magnitude depending on the azimuth angle due to reflection and scattering of the emergency rescue signal.
  • the emergency rescue signal transmitted directly from the Zigbee module 100 has a large reception strength, so it is possible that the emergency rescue signal received from the rescue team 400 is a signal transmitted from the Zigbee module 100 only when the predetermined value is greater than or equal to a predetermined value.
  • the candidate regions C1, C2, and C3 have a substantially fan shape having the vertex as the first position R1, which is the current position of the rescue team 400.
  • the map display unit 410 displays the candidate areas C1, C2, and C3 detected in the reception intensity panorama.
  • the present invention is not limited by the drawings, and the number of candidate regions C1, C2, and C3 is substantially larger than the reference value in the signal intensity panorama. Since it corresponds to the number of areas having a size, it is not limited by the drawings.
  • the target position T is included in the candidate regions C1, C2, C3, and the candidate regions C1, C2, C3.
  • the target position T may be determined that the rescue requester is located at the portion where the strength of the received signal is greatest.
  • the rescue team 400 moves to another location to receive the emergency rescue signal, creates a reception intensity panorama, and sets the target position T.
  • the work to confirm must be repeated a number of times.
  • the position where the rescue team 400 will move to receive the emergency rescue signal (hereinafter, referred to as a "movement candidate position") for the determination of the target position T calculates the necessary cost when the rescue team 400 moves and is the minimum cost position. It may be detected (S120).
  • the moving candidate position is located on the path where the rescue team 400 can move substantially at the position (R1) where the current rescue team 400 is located, and can change the dynamic path of the rescue team 400 such as a crossroad or an intersection. Points.
  • the movement candidate position is determined as a position that can be moved to the shortest distance from the current position (R1) as quickly as possible, and is affected by road conditions and regional influences in the wide area position (A2). Since the position that can satisfy these conditions is determined as the movement candidate position, the number of candidate movement positions that can be set in the wide-area position A2 will be substantially limited.
  • the cost required to move to the movement candidate position detected from the current position of the rescue team 400 is calculated (S121), and the position where the calculated cost is minimum (hereinafter referred to as 'moving position') is determined and the moving position
  • the movement route for moving to is determined (S122).
  • step S118 candidate regions are detected by detecting regions having a signal size equal to or greater than a reference value.
  • the candidate area detected at the movement position is also displayed on the map display unit 410, and the overlapping region S1, in which the candidate region detected at the movement position and the candidate region detected at the first position, overlap each other.
  • S2, S3, S T can be detected.
  • the overlapping regions S1, S2, S3, and S T thus detected are set as new candidate regions.
  • the target position T can be determined by comparing the size of the candidate area set as described above with the size of the reference area (S119).
  • the position detection method may determine the target position T by moving to a plurality of positions and repeatedly performing the above-described steps. That is, when the target position T is not confirmed, the next movement position having the minimum movement cost is determined and moved from the current position, and after repeating the steps for detecting the aforementioned candidate region at the movement position, a plurality of movements are performed.
  • the overlapped overlapping regions S1, S2, S3, and S T of the candidate regions detected at the positions may be detected, and thus the size of the overlapping regions of the candidate regions detected at the plurality of positions may be smaller than that of the reference region.
  • the candidate area can be detected and the target position T can be determined.
  • the rescue team 400 directly receives the emergency rescue signal transmitted from the ZigBee module 100 in the wide area position A2 and quickly determines the location where the ZigBee module 100 exists through the strength of the received signal. Can be detected accurately.
  • the rescue team 400 moves to the location with the shortest path and the least cost, the target location T can be detected and reached quickly, and the rescue requester can be quickly rescued.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
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Abstract

L'invention concerne un système de secours d'urgence permettant de diffuser un signal d'urgence pendant une période prolongée, avec une faible consommation de courant, au moyen d'un module ZigBee, et qui permet de conférer une portabilité au demandeur de secours et de produire un signal grâce à un fonctionnement simple dans une situation d'urgence pour permettre de détecter précisément et rapidement l'emplacement du demandeur de secours. Le système de secours d'urgence comprend: un module ZigBee porté par un demandeur de secours en vue de produire un signal d'urgence; un terminal destiné à recevoir le signal d'urgence et à transmettre des informations relatives à celui-ci à un centre distributeur de modulation, par l'intermédiaire d'un réseau de communication général; un centre distributeur de modulation pour détecter un emplacement large à partir du lieu où se trouve un terminal correspondant, et envoyer une équipe de sauvetage vers l'emplacement large détecté lors de la réception des données de signal d'urgence provenant du terminal; et une équipe de sauvetage qui se déplace vers l'emplacement large détecté, reçoit directement le signal d'urgence produit par le module ZigBee et détecte l'emplacement du module ZigBee.
PCT/KR2010/001998 2010-02-03 2010-04-01 Système de secours d'urgence et procédé de détection d'emplacement WO2011096620A1 (fr)

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CN106127645A (zh) * 2016-06-29 2016-11-16 上海救要救信息科技有限公司 用于处理救援需求信息的方法与设备
CN110225455A (zh) * 2019-07-04 2019-09-10 长沙环康科技有限公司 智能救援系统的用户精准定位方法及智能救援系统
CN110696003A (zh) * 2019-09-17 2020-01-17 五邑大学 基于slam技术和深度学习的水边救援机器人
CN114143339A (zh) * 2021-11-02 2022-03-04 深圳市发掘科技有限公司 一种消防救援方法、装置、计算机设备及存储介质
CN115412594A (zh) * 2021-05-27 2022-11-29 中国联合网络通信集团有限公司 定位指挥调度方法、装置及设备
CN116156474A (zh) * 2023-04-21 2023-05-23 湖南伟达文化传播有限公司 应用于智慧景区的标识管理方法及系统

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Publication number Priority date Publication date Assignee Title
CN106127645A (zh) * 2016-06-29 2016-11-16 上海救要救信息科技有限公司 用于处理救援需求信息的方法与设备
CN110225455A (zh) * 2019-07-04 2019-09-10 长沙环康科技有限公司 智能救援系统的用户精准定位方法及智能救援系统
CN110696003A (zh) * 2019-09-17 2020-01-17 五邑大学 基于slam技术和深度学习的水边救援机器人
CN115412594A (zh) * 2021-05-27 2022-11-29 中国联合网络通信集团有限公司 定位指挥调度方法、装置及设备
CN115412594B (zh) * 2021-05-27 2024-01-12 中国联合网络通信集团有限公司 定位指挥调度方法、装置及设备
CN114143339A (zh) * 2021-11-02 2022-03-04 深圳市发掘科技有限公司 一种消防救援方法、装置、计算机设备及存储介质
CN114143339B (zh) * 2021-11-02 2024-06-07 深圳市发掘科技有限公司 一种消防救援方法、装置、计算机设备及存储介质
CN116156474A (zh) * 2023-04-21 2023-05-23 湖南伟达文化传播有限公司 应用于智慧景区的标识管理方法及系统
CN116156474B (zh) * 2023-04-21 2023-06-30 湖南伟达文化传播有限公司 应用于智慧景区的标识管理方法及系统

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