CN114422959A - Intelligent fire hydrant system capable of being used for positioning fire fighters and guiding tasks - Google Patents
Intelligent fire hydrant system capable of being used for positioning fire fighters and guiding tasks Download PDFInfo
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- 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
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Abstract
The invention discloses an intelligent fire hydrant system capable of being used for positioning fire fighters and guiding tasks, which comprises a plurality of intelligent fire hydrants, a plurality of fire fighter terminal devices and a background processing server, wherein the fire fighter terminal devices are connected with the background processing server through a network; according to the invention, the intelligent fire hydrant is used as a positioning reference, and a plurality of positioning technologies or a plurality of positioning fusion technologies are adopted to realize accurate positioning of fire fighters in a complex environment. According to the intelligent fire hydrant, the surrounding environment is monitored, the three-dimensional distribution and situation information of fire conditions are constructed, and the fire rescue is more efficient. According to the invention, through task guidance in a complex environment, command scheduling and task allocation of each firefighter are globally optimized, the firefighting rescue efficiency is improved, more time is saved, and more life and property losses are saved.
Description
Technical Field
The invention relates to an intelligent fire hydrant system capable of being used for positioning fire fighters and guiding tasks.
Background
Due to the complex distribution of building structures and functional areas, large-scale buildings such as factory buildings and business buildings face a great challenge to the positioning and tracking of fire-fighting rescue workers and the selection of paths of fire-fighting rescue tasks, and the fire-fighting rescue efficiency is influenced.
Disclosure of Invention
The invention aims to provide an intelligent fire hydrant system capable of being used for positioning fire fighters and guiding tasks, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an intelligent fire hydrant system capable of being used for fire fighter positioning and task guidance comprises a plurality of intelligent fire hydrants, a plurality of fire fighter terminal devices and a background processing server;
each intelligent fire hydrant comprises the following modules:
an autonomous positioning module: the position of the fire hydrant can be obtained through surveying, mapping and correcting by the designed installation position of the fire hydrant in a building or outdoors, the position of the fire hydrant can be monitored and updated by the autonomous positioning module, the positioning method comprises various indoor and outdoor positioning technologies, and the indoor and outdoor positioning technologies are not limited to an inertial measurement unit, UWB (ultra wide band), Bluetooth and Wifi (wireless fidelity);
fire fighter location beacon module in the intelligence fire hydrant: based on the accurate position information of the fire fighter, the indoor and outdoor positioning reference is used as an indoor and outdoor positioning reference to provide accurate indoor and outdoor positioning for the fire fighter;
fire monitoring module: the module comprises sensor equipment for monitoring ambient temperature, humidity and smoke, and transmits monitoring information to the background processing server through the communication module;
communication module of intelligence fire hydrant: the module realizes the two-way communication between the intelligent fire hydrant and other intelligent fire hydrants, fire fighters and a background processing server, and is used for supporting the fire fighter positioning, fire monitoring and task guidance; the communication mode includes but is not limited to technologies and frequency bands such as Bluetooth, WiFi, LoRA, telecommunication network and the like;
the task guide auxiliary module: the module provides task guidance for surrounding firefighters through task guidance made by a background processor aiming at the fire monitoring condition in a mode of fusion of voice, indicator light, display (including characters, graphs, pictures, enhanced display and the like) or multiple modes;
the background processing server, also called background server or background processor, has the following main modules and functions:
the firefighter positioning and resolving module comprises: according to the positioning technology adopted by a fireman positioning beacon module in the intelligent fire hydrant, the fireman positioning calculation module calculates the specific position information and the motion state of the fireman according to the corresponding positioning algorithm through the acquired label and beacon information, and the module can also be wholly or partially resident in a positioning module of the fireman terminal equipment;
the fire distribution resolving module: the module receives surrounding environment information including air temperature, humidity, smoke, time and position monitored and transmitted by each intelligent fire hydrant through a communication module of a background processing server, constructs three-dimensional distribution of fire conditions, and predicts the evolution trend of the fire conditions;
the task guide generation module: the module generates an optimal path and task guide for a rescue task and an evacuation task for each fire fighter based on real-time positioning information and fire monitoring and prediction information of the fire fighter and by referring to the structure of a building and the design of a fire fighting channel, and transmits the task guide to each intelligent fire hydrant and fire fighting operators through the communication module, and the fire hydrant task guide module provides task guide for surrounding fire fighters through but not limited to a mode of combining multiple modes such as voice, indicator light, display (including forms of characters, graphs, pictures, augmented reality and the like) and the like or multiple modes;
the communication module of the background processing server: the module realizes the two-way communication between the background processing server and the intelligent fire hydrant and between the background processing server and the firefighters, and is used for supporting the positioning of the firefighters, the fire monitoring and the task guidance, and the communication modes include but are not limited to the technologies and frequency bands of Bluetooth, WiFi, LoRA, telecommunication network and the like;
fire fighter terminal equipment, its main module and function are as follows:
firefighter location tag module: according to the positioning technology adopted by a fire fighter positioning beacon module in the intelligent fire hydrant, the fire fighter positioning tag module is provided with a corresponding tag or node, and correspondingly realizes real-time positioning of the fire fighter together with the fire fighter positioning beacon module and the fire fighter positioning resolving module in the intelligent fire hydrant by transmitting or receiving signals of the corresponding technology;
the task guide module: the module provides task guidance for fire fighters in a form of fusion of multiple modes such as voice, indicator light, display (including forms of characters, graphs, pictures, augmented reality and the like) or multiple modes through the task guidance made by the background processing server aiming at the fire monitoring condition and the cooperation with the intelligent fire hydrant task guidance module;
the communication module of fire fighter terminal equipment: the module realizes the two-way communication between the fire fighters and the intelligent fire hydrant, between the fire fighters and the background processing server, and is used for supporting the positioning of the fire fighters, the fire monitoring and the task guidance; the communication mode includes but is not limited to technologies and frequency bands such as Bluetooth, WiFi, LoRA, telecommunication network and the like;
the invention is further improved in that: the fire fighter positioning beacon module in the intelligent fire hydrant and the fire fighter positioning tag module can adopt various positioning technologies, the positioning technologies used by the fire fighter positioning beacon module and the fire fighter positioning tag module in the intelligent fire hydrant include and are not limited to the following listed positioning technologies, each positioning technology can work independently, various combinations of various positioning technologies can be carried out to fuse and optimize the positioning precision, and an inertial measurement unit, a geomagnetic positioning system and a GNSS positioning system are configured in fire fighter terminal equipment to carry out combined positioning and fusion optimization:
i. under the Bluetooth Beacon positioning technology, the module is configured with a Bluetooth Beacon with a fixed position and broadcasts signals and data packets to the surroundings. The firefighter carries a terminal device equipped with a Bluetooth receiver, and calculates a specific position through a built-in positioning algorithm after entering a signal coverage range.
The module configures a fixed-location multi-antenna bluetooth terminal under the bluetooth aoa (angle of arrival) positioning technology. The firefighter carries a device equipped with a single-antenna bluetooth terminal, and calculates a specific position by the AoA method.
The module configures a fixed-location multi-antenna bluetooth terminal under the bluetooth aod (angle of department) positioning technology. The firefighter carries a device equipped with a single-antenna bluetooth terminal, and calculates a specific position by the AoD method.
And iv, under the ZigBee locating technology, configuring a ZigBee reference node with a fixed position by the module. Firefighters carry terminal equipment provided with ZigBee blind nodes, and specific positions are calculated through mutual networking communication among the nodes after entering a signal coverage range.
v. under the Wifi positioning technology, the module configures a fixed Wifi hotspot or base station. The fire fighter carries terminal equipment, and after entering the scope that the signal covered, through many wifi basic stations cross localization, confirms concrete position.
And vi, under the infrared positioning technology, the module is provided with an infrared sensor with a fixed position to measure the distance and the angle of the signal source. The fire fighter carries the terminal equipment who is equipped with the electronic tags that can emit infrared ray, through a plurality of intelligent fire hydrants of installing infrared sensor to calculate specific position.
And the module is matched with a transmitter and a receiver which are arranged in fixed positions under the infrared mesh positioning technology, and the fire fighter is directly positioned through the infrared meshes woven by a plurality of pairs of transmitters/receivers.
The module is equipped with a fixed-position ultrasonic receiver using ultrasonic positioning technology. The fire fighter carries the terminal equipment who is equipped with main distancer, and main distancer is to the signal of a plurality of receivers transmission with the frequency, and the reflection is given again after the receiver is received and is transmitted main distancer, calculates the distance according to the time difference of echo and transmitted wave to confirm the position.
And ix, configuring the RFID reader with a fixed position by the module under the RFID positioning technology. Firefighters carry terminal devices equipped with RFID tags. Characteristic information (including and not limited to identity information, received signal strength and the like) of the RFID tags is read by a set of readers respectively fixed on the intelligent fire hydrants, and the positions of the tags can be determined by adopting a neighbor method, a multilateral positioning method, received signal strength and the like. The technology is also applicable to the fact that the module is provided with a fixed RFID tag, a fire fighter carries an RFID reader, and characteristic information (including fire hydrant identity information, fixed position coordinates and the like) of the fire fighter is acquired by reading the RFID tag on the fire hydrant, so that the position of the fire fighter is updated or corrected.
x. the module configures a fixed-location UWB positioning base station under UWB positioning technology. Firefighters carry terminal devices equipped with positioning tags capable of transmitting UWB signals. Each location base station measures the time of arrival of the data frame of each location tag at the receiver antenna using a high sensitivity burst detector and calculates the tag location using the TDOA algorithm by communicating with a background server.
And xi, under the LED visible light positioning technology, the module is provided with an LED lamp with a fixed position, and identity information is modulated on the lamp light. The fire fighter carries the terminal equipment who is equipped with the camera, discerns the coding information that the LED lamp sent through the camera, utilizes the identification information who obtains and light arrival angle, confirms corresponding positional information in map database, accomplishes the location.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the intelligent fire hydrant is used as a positioning reference, and a plurality of positioning technologies or a plurality of positioning fusion technologies are adopted to realize accurate positioning of fire fighters in a complex environment.
According to the intelligent fire hydrant, the surrounding environment is monitored, the three-dimensional distribution and situation information of fire conditions are constructed, and the fire rescue is more efficient.
According to the invention, through task guidance in a complex environment, command scheduling and task allocation of each firefighter are globally optimized, the firefighting rescue efficiency is improved, more time is saved, and more life and property losses are saved.
Drawings
FIG. 1 is a functional diagram of the system and method of the present invention;
FIG. 2 is a block diagram of the system and method of the present invention;
FIG. 3 is a diagram of a firefighter location function in an intelligent fire hydrant;
fig. 4 is a technical option diagram that can be adopted by each module of the firefighter location function in the intelligent fire hydrant.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The invention provides an intelligent fire hydrant system which can support fire fighters to perform accurate outdoor and indoor positioning, judge fire conditions and provide task guidance for fire fighters. The system comprises a plurality of intelligent fire hydrants, a plurality of fire fighter terminal devices and a background processing server; the main components and features of the system and method are as follows:
each intelligent fire hydrant in the intelligent fire hydrant system comprises the following modules:
a. an autonomous positioning module: the position of the fire hydrant itself can be found by its designed installation location in a building or outdoors and corrected by mapping. The autonomous positioning module monitors and updates the position of the fire hydrant. The positioning method includes but is not limited to indoor and outdoor positioning technologies such as inertial measurement units, UWB, Bluetooth and Wifi.
b. Fire fighter location beacon module in the intelligence fire hydrant: based on the accurate position information of self, as indoor outer location reference, provide accurate indoor outer location for the fire fighter. The main technical and method options are as follows:
i. under the Bluetooth Beacon positioning technology, the module is configured with a Bluetooth Beacon with a fixed position and broadcasts signals and data packets to the surroundings. The firefighter carries a terminal device equipped with a Bluetooth receiver, and calculates a specific position through a built-in positioning algorithm after entering a signal coverage range.
The module configures a fixed-location multi-antenna bluetooth terminal under the bluetooth aoa (angle of arrival) positioning technology. The firefighter carries a device equipped with a single-antenna bluetooth terminal, and calculates a specific position by the AoA method.
The module configures a fixed-location multi-antenna bluetooth terminal under the bluetooth aod (angle of department) positioning technology. The firefighter carries a device equipped with a single-antenna bluetooth terminal, and calculates a specific position by the AoD method.
And iv, under the ZigBee locating technology, configuring a ZigBee reference node with a fixed position by the module. Firefighters carry terminal equipment provided with ZigBee blind nodes, and specific positions are calculated through mutual networking communication among the nodes after entering a signal coverage range.
v. under the Wifi positioning technology, the module configures a fixed Wifi hotspot or base station. The fire fighter carries terminal equipment, and after entering the scope that the signal covered, through many wifi basic stations cross localization, confirms concrete position.
And vi, under the infrared positioning technology, the module is provided with an infrared sensor with a fixed position to measure the distance and the angle of the signal source. The fire fighter carries the terminal equipment who is equipped with the electronic tags that can emit infrared ray, through a plurality of intelligent fire hydrants of installing infrared sensor to calculate specific position.
And the module is matched with a transmitter and a receiver which are arranged in fixed positions under the infrared mesh positioning technology, and the fire fighter is directly positioned through the infrared meshes woven by a plurality of pairs of transmitters/receivers.
The module is equipped with a fixed-position ultrasonic receiver using ultrasonic positioning technology. The fire fighter carries the terminal equipment who is equipped with main distancer, and main distancer is to the signal of a plurality of receivers transmission with the frequency, and the reflection is given again after the receiver is received and is transmitted main distancer, calculates the distance according to the time difference of echo and transmitted wave to confirm the position.
And ix, configuring the RFID reader with a fixed position by the module under the RFID positioning technology. Firefighters carry terminal devices equipped with RFID tags. Characteristic information (including and not limited to identity information, received signal strength and the like) of the RFID tags is read by a set of readers respectively fixed on the intelligent fire hydrants, and the positions of the tags can be determined by adopting a neighbor method, a multilateral positioning method, received signal strength and the like. The technology is also applicable to the fact that the module is provided with a fixed RFID tag, a fire fighter carries an RFID reader, and characteristic information (including fire hydrant identity information, fixed position coordinates and the like) of the fire fighter is acquired by reading the RFID tag on the fire hydrant, so that the position of the fire fighter is updated or corrected.
x. the module configures a fixed-location UWB positioning base station under UWB positioning technology. Firefighters carry terminal devices equipped with positioning tags capable of transmitting UWB signals. Each location base station measures the time of arrival of the data frame of each location tag at the receiver antenna using a high sensitivity burst detector and calculates the tag location using the TDOA algorithm by communicating with a background server.
And xi, under the LED visible light positioning technology, the module is provided with an LED lamp with a fixed position, and identity information is modulated on the lamp light. The fire fighter carries the terminal equipment who is equipped with the camera, discerns the coding information that the LED lamp sent through the camera, utilizes the identification information who obtains and light arrival angle, confirms corresponding positional information in map database, accomplishes the location.
It needs to be further explained that:
(1) the positioning techniques used by the module include, but are not limited to, the positioning techniques listed above.
(2) Each positioning technology can work independently, and the positioning precision can be fused and optimized by combining various positioning technologies.
(3) The module can also be matched with an Inertial Measurement Unit (IMU), a geomagnetic positioning system and a GNSS positioning system in a fire fighter terminal to carry out combined positioning and fusion optimization.
c. Fire monitoring module: the module comprises sensor equipment for monitoring ambient temperature, humidity and smoke, and transmits monitoring information to the background processing server through the communication module.
d. Communication module of intelligence fire hydrant: the module realizes the two-way communication between the intelligent fire hydrant and other intelligent fire hydrants, fire fighters and a background processing server, and is used for supporting the positioning of the fire fighters, the fire monitoring and the task guidance. Communication means include, but are not limited to, bluetooth, WiFi, LoRA, telecommunication network, etc. technologies and frequency bands.
e. The task guide auxiliary module: the module provides task guidance for surrounding firefighters through task guidance made by the background processor aiming at the fire monitoring condition and through multiple modes such as voice, indicator light, display (including forms of characters, graphs, pictures, augmented reality and the like) or a mode of fusion of the multiple modes.
2. The background processing server, also called background server or background processor, has the following main modules and functions:
a. the firefighter positioning and resolving module comprises: according to various positioning technologies mentioned in a firefighter positioning beacon module in the intelligent fire hydrant, the firefighter positioning calculation module calculates specific position information and motion states of the firefighters according to the acquired labels and beacon information and a corresponding positioning algorithm. The module may also reside, in whole or in part, in a location module of the firefighter terminal device.
b. The fire distribution resolving module: the module receives the ambient environment information including temperature, humidity, smoke, time, position and the like monitored and transmitted by each intelligent fire hydrant through the communication module, constructs the three-dimensional distribution of the fire condition, and predicts the evolution trend of the fire condition.
c. The task guide generation module: the module generates optimal paths and task guides for rescue tasks and evacuation tasks for each firefighter based on real-time positioning information and fire monitoring and prediction information of the firefighters and by referring to the structure of a building and the design of a fire fighting channel, and transmits the task guides to each intelligent fire hydrant and fire fighting operator through the communication module. The fire hydrant task guidance module provides task guidance for surrounding fire fighters in a form of multiple modes or multiple mode fusion such as voice, indicator light, display (including text, graphics, pictures, augmented reality and the like) and the like.
d. The communication module of the background processing server: the module realizes the two-way communication between the background processing server and the intelligent fire hydrant and between the background processing server and the fire fighters, and is used for supporting the fire fighter positioning, the fire monitoring and the task guidance. Communication means include, but are not limited to, bluetooth, WiFi, LoRA, telecommunication network, etc. technologies and frequency bands.
3. Fire fighter terminal equipment, its main module and function are as follows:
a. firefighter location tag module: according to various positioning technologies mentioned in a fire fighter positioning beacon module in the intelligent fire hydrant, the fire fighter positioning tag module is provided with corresponding tags or nodes, correspondingly, the fire fighter positioning tag module and a background processor fire fighter positioning resolving module in the intelligent fire hydrant realize real-time positioning of fire fighters together by transmitting or receiving signals of the corresponding technologies.
It needs to be further explained that:
(1) the positioning techniques used by the module include, but are not limited to, the positioning techniques listed above.
(2) Each positioning technology can work independently, and the positioning precision can be fused and optimized by combining various positioning technologies.
(3) The module can also be matched with an Inertial Measurement Unit (IMU), a geomagnetic positioning system and a GNSS positioning system in a fire fighter terminal to carry out combined positioning and fusion optimization.
b. The task guide module: the module guides the task made according to the fire monitoring condition through the background processor, cooperates with the intelligent fire hydrant task guiding module, and provides task guidance for fire fighters through but not limited to various modes such as voice, indicator light, display (including forms of characters, graphs, pictures, augmented reality and the like) or a mode of fusion of various modes.
c. The communication module of fire fighter terminal equipment: the module realizes the two-way communication between the fire fighters and the intelligent fire hydrant, between the fire fighters and the background processing server, and is used for supporting the positioning of the fire fighters, the fire monitoring and the task guidance. Communication means include, but are not limited to, bluetooth, WiFi, LoRA, telecommunication network, etc. technologies and frequency bands.
According to the invention, the intelligent fire hydrant is used as a positioning reference, and a plurality of positioning technologies or a plurality of positioning fusion technologies are adopted to realize accurate positioning of fire fighters in a complex environment. According to the intelligent fire hydrant, the surrounding environment is monitored, and the three-dimensional distribution and situation information of fire conditions are constructed, so that the fire rescue is more efficient. According to the invention, through task guidance in a complex environment, command scheduling and task allocation of each firefighter are globally optimized, the firefighting rescue efficiency is improved, more time is saved, and more life and property losses are saved.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. An intelligent fire hydrant system capable of being used for positioning fire fighters and guiding tasks is characterized in that: the intelligent fire hydrant system comprises a plurality of intelligent fire hydrants, a plurality of fire fighter terminal devices and a background processing server;
each intelligent fire hydrant comprises the following modules:
an autonomous positioning module: the position of the fire hydrant can be obtained through surveying, mapping and correcting by the designed installation position of the fire hydrant in a building or outdoors, the position of the fire hydrant can be monitored and updated by the autonomous positioning module, the positioning method comprises various indoor and outdoor positioning technologies, and the indoor and outdoor positioning technologies are not limited to an inertial measurement unit, UWB (ultra wide band), Bluetooth and Wifi (wireless fidelity);
fire fighter location beacon module in the intelligence fire hydrant: based on the accurate position information of the fire fighter, the indoor and outdoor positioning reference is used as an indoor and outdoor positioning reference to provide accurate indoor and outdoor positioning for the fire fighter;
fire monitoring module: the module comprises sensor equipment for monitoring ambient temperature, humidity and smoke, and transmits monitoring information to the background processing server through the communication module;
communication module of intelligence fire hydrant: the module realizes the two-way communication between the intelligent fire hydrant and other intelligent fire hydrants, fire fighters and a background processing server, and is used for supporting the fire fighter positioning, fire monitoring and task guidance; communication means include, but are not limited to, bluetooth, WiFi, LoRA, technologies and bands of the telecommunication network;
the task guide auxiliary module: the module provides task guidance for surrounding firefighters through task guidance made by a background processor aiming at the fire monitoring condition in a mode of not only voice, indicator light, text display, graphic display, picture display and enhanced realization or a mode of fusion of multiple modes;
the background processing server, also called background server or background processor, has the following main modules and functions:
the firefighter positioning and resolving module comprises: according to the positioning technology adopted by a fireman positioning beacon module in the intelligent fire hydrant, the fireman positioning calculation module calculates the specific position information and the motion state of the fireman according to the corresponding positioning algorithm through the acquired label and beacon information, and the module can also be wholly or partially resident in a positioning module of the fireman terminal equipment;
the fire distribution resolving module: the module receives surrounding environment information including air temperature, humidity, smoke, time and position monitored and transmitted by each intelligent fire hydrant through a communication module of a background processing server, constructs three-dimensional distribution of fire conditions, and predicts the evolution trend of the fire conditions;
the task guide generation module: the module generates an optimal path and task guide for a rescue task and an evacuation task for each fire fighter based on real-time positioning information and fire monitoring and prediction information of the fire fighter and by referring to the structure of a building and the design of a fire fighting channel, and transmits the task guide to each intelligent fire hydrant and fire fighting operators through the communication module;
the communication module of the background processing server: the module realizes the two-way communication between the background processing server and the intelligent fire hydrant and between the background processing server and the firefighters, and is used for supporting the positioning of the firefighters, the fire monitoring and the task guidance, and the communication mode includes but is not limited to the technology and the frequency band of Bluetooth, WiFi, LoRA and a telecommunication network;
fire fighter terminal equipment, its main module and function are as follows:
firefighter location tag module: according to the positioning technology adopted by a fire fighter positioning beacon module in the intelligent fire hydrant, the fire fighter positioning tag module is provided with a corresponding tag or node, and correspondingly realizes real-time positioning of the fire fighter together with the fire fighter positioning beacon module and the fire fighter positioning resolving module in the intelligent fire hydrant by transmitting or receiving signals of the corresponding technology;
the task guide module: the module provides task guidance for fire fighters in a plurality of modes such as voice, indicator light, text display and the like through the task guidance made by the background processing server aiming at the fire monitoring condition and the cooperation with the intelligent fire hydrant task guidance module;
the communication module of fire fighter terminal equipment: the module realizes the two-way communication between the fire fighters and the intelligent fire hydrant, between the fire fighters and the background processing server, and is used for supporting the positioning of the fire fighters, the fire monitoring and the task guidance; communication means include, but are not limited to, bluetooth, WiFi, LoRA, technologies and bands of the telecommunication network.
2. An intelligent fire hydrant system according to claim 1 which can be used for fire fighter location and task guidance, in which: the fire fighter positioning beacon module in the intelligent fire hydrant and the fire fighter positioning tag module can adopt various positioning technologies, the positioning technologies used by the fire fighter positioning beacon module and the fire fighter positioning tag module in the intelligent fire hydrant include and are not limited to the following listed positioning technologies, each positioning technology can work independently, various combinations of various positioning technologies can be carried out to fuse and optimize the positioning precision, and an inertial measurement unit, a geomagnetic positioning system and a GNSS positioning system are configured in fire fighter terminal equipment to carry out combined positioning and fusion optimization:
i. under the Bluetooth Beacon positioning technology, the module is configured with a Bluetooth Beacon with a fixed position to broadcast signals and data packets to the surroundings, firefighters carry terminal equipment provided with a Bluetooth receiver, and after entering a signal coverage range, a specific position is calculated through a built-in positioning algorithm;
under the Bluetooth AoA positioning technology, the module is provided with a multi-antenna Bluetooth terminal with a fixed position, a firefighter carries the Bluetooth terminal with a single antenna, and a specific position is calculated through an AoA method;
under the adoption of a Bluetooth AoD positioning technology, the module is provided with a multi-antenna Bluetooth terminal with a fixed position, a firefighter carries the Bluetooth terminal with a single antenna, and a specific position is calculated through an AoD method;
the module is configured with ZigBee reference nodes with fixed positions by adopting a ZigBee locating technology, firefighters carry terminal equipment with ZigBee blind nodes, and specific positions are calculated through mutual networking communication among the nodes after entering a signal coverage range;
v. under the Wifi positioning technology, the module is configured with fixed Wifi hotspots or base stations, the firefighters carry terminal equipment, and after entering a signal coverage range, the specific position is determined through cross positioning of multiple Wifi base stations;
vi, under the infrared positioning technology, the module is provided with an infrared sensor with a fixed position to measure the distance and the angle of a signal source, a fireman carries a terminal device provided with an electronic tag capable of emitting infrared rays, and the specific position is calculated through a plurality of intelligent fire hydrants provided with the infrared sensors;
the module is matched and arranged into a transmitter and a receiver with fixed positions by adopting an infrared mesh positioning technology, and the fire fighter is directly positioned by an infrared mesh woven by a plurality of pairs of transmitters or receivers;
the module is provided with an ultrasonic receiver with a fixed position under the ultrasonic positioning technology, a fire fighter carries a terminal device provided with a main distance meter, the main distance meter transmits signals with the same frequency to a plurality of receivers, the signals are reflected and transmitted to the main distance meter after being received by the receivers, and the distance is calculated according to the time difference between an echo and a transmitted wave, so that the position is determined;
the module is provided with RFID readers with fixed positions, firefighters carry terminal equipment provided with RFID tags, characteristic information of the RFID tags is read through a group of readers respectively fixed on intelligent fire hydrants, the characteristic information comprises but is not limited to identity information and received signal strength, the positions of the tags can be determined by adopting a neighbor method, a multilateral positioning method and a received signal strength method, the technology is also suitable for the module to be provided with the fixed RFID tags, the firefighters carry the RFID readers, the characteristic information is obtained by reading the RFID tags on the fire hydrants, the characteristic information comprises but is not limited to the identity information and fixed position coordinates of the fire hydrants, and therefore the positions of the firefighters are updated or corrected;
under the UWB positioning technology, the module is provided with UWB positioning base stations with fixed positions, firefighters carry terminal equipment provided with positioning tags capable of emitting UWB signals, each positioning base station measures the time of a data frame of each positioning tag reaching a receiver antenna by using a high-sensitivity short pulse detector, and calculates the tag positions by using a TDOA algorithm through communication with a background server;
and xi, under the LED visible light positioning technology, the module is provided with an LED lamp with a fixed position, identity information is modulated on light, a firefighter carries a terminal device provided with a camera, coding information emitted by the LED lamp is identified through the camera, and corresponding position information is determined in a map database by utilizing the obtained identification information and the arrival angle of the light to complete positioning.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115979259A (en) * | 2023-02-14 | 2023-04-18 | 深圳市天陆海导航设备技术有限责任公司 | Multi-source fusion high-precision indoor and outdoor navigation positioning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115979259A (en) * | 2023-02-14 | 2023-04-18 | 深圳市天陆海导航设备技术有限责任公司 | Multi-source fusion high-precision indoor and outdoor navigation positioning system |
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