CN111399419A - Emergency rescue positioning system based on intelligent emergency evacuation system - Google Patents
Emergency rescue positioning system based on intelligent emergency evacuation system Download PDFInfo
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W4/02—Services making use of location information
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
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Abstract
The invention discloses an emergency rescue positioning system based on an intelligent emergency evacuation system, wherein the intelligent emergency evacuation system comprises a plurality of evacuation indicating lamps which are in communication connection with a main controller of a central control room, and the evacuation indicating lamps are respectively arranged on the ground and on a wall at intervals; and WiFi chips are respectively installed on the evacuation indication lamps and used for communicating with mobile phones of people nearby the evacuation indication lamps, the MAC physical address of the evacuation indication lamps and the corresponding lamp space physical position are fed back to the mobile phones of the people nearby, the space physical position of the mobile phone is obtained, and the space physical position or the actual position of the mobile phone obtained by combining the space physical position with a building map is fed back to the main controller. The emergency rescue positioning system is combined with an intelligent emergency evacuation system (fire fighting system) with a good layout, and WiFi chips are respectively arranged on evacuation indicating lamps, so that real-time positioning of personnel can be realized, evacuation and emergency command of the personnel are facilitated, and in addition, people flow statistics can also be realized according to positioning results.
Description
Technical Field
The invention relates to the field of emergency rescue, in particular to an emergency rescue positioning system based on an intelligent emergency evacuation system.
Background
The urban building (such as a market or a large place) has a complex internal structure, intelligent emergency evacuation systems are arranged according to the existing national building design fire protection regulations, and evacuation indication lamps and evacuation lighting lamps which are centrally controlled by a central control room are arranged on the ground or the wall in the building, so that when a fire disaster occurs, fire rescue such as evacuation induction and command can be performed. The emergent sparse system of current intelligence generally does not have positioning system, when carrying out personnel evacuation, can only be that personnel guide according to sparse instruction lamps and lanterns by oneself and flee, and the specific conditions of personnel in the building can't be known in real time to the central control room, can't effectively carry out rescue command, and in addition, above-mentioned system also does not have people flow statistics function.
Therefore, it is obvious that the above-mentioned existing intelligent emergency evacuation system still has the inconvenience and drawbacks, and further improvement is urgently needed. How to create a new emergency rescue positioning system capable of realizing real-time automatic positioning of personnel, facilitating personnel evacuation and emergency command becomes an extremely improved target in the current industry.
Disclosure of Invention
The invention aims to provide an emergency rescue positioning system which can realize real-time automatic positioning of personnel and is convenient for personnel evacuation and emergency command.
In order to solve the technical problems, the invention adopts the following technical scheme:
an emergency rescue positioning system based on an intelligent emergency evacuation system comprises a plurality of evacuation indicating lamps in communication connection with a main controller of a central control room, wherein the evacuation indicating lamps are respectively arranged on the ground and on a wall at intervals; and WiFi chips are respectively installed on the evacuation indication lamps and used for communicating with mobile phones of people nearby the evacuation indication lamps, the MAC physical address of the evacuation indication lamps and the corresponding lamp space physical position are fed back to the mobile phones of the people nearby, the space physical position of the mobile phone is obtained, and the space physical position or the actual position of the mobile phone obtained by combining the space physical position with a building map is fed back to the main controller.
As a further improvement of the present invention, the method for acquiring the spatial physical location of the mobile phone comprises:
the difference of the transmission time of the WiFi wireless carrier signals from the mobile phone to the two or more lamps is calculated, the difference of the fixed distances between the mobile phone and the two or more lamps is calculated, the information of the distance difference between the plurality of groups of mobile phones and the two or more lamps is obtained, and the spatial physical position of the mobile phone relative to the lamps is obtained through a multilateral method.
Furthermore, the emergency rescue positioning system also comprises an emergency rescue command center, a rescue personnel handheld terminal and a reconnaissance unmanned aerial vehicle; WiFi chips are arranged in the rescue personnel handheld terminal and the reconnaissance unmanned aerial vehicle, and positioning and communication are achieved through cooperative work of the evacuation indicating lamp provided with the WiFi chips.
Furthermore, a display screen is arranged in the handheld terminal of the rescue worker, and the functions of navigation and search and rescue route guidance are realized by matching positioning information and a map.
Further, the emergency rescue command center is used for receiving a WiFi (wireless fidelity) broadcast packet of a mobile phone of a person trapped in a building by using the evacuation indication lamp, acquiring a MAC (media access control) physical address of the mobile phone of the person trapped, determining the number of the person trapped by counting the number of the MAC physical addresses, and utilizing the position of a base station receiving the MAC physical address data packet to correspond to the position of the person trapped; and communicating the location to the rescuer.
Further, the emergency rescue positioning system is used as a people flow rate statistical system; the master controller monitors mobile phone broadcast data packets received by all evacuation indicating lamps in the system in real time, extracts MAC address information, and performs MAC address duplicate checking and MAC address number counting on the master controller end in a unified manner, so that the number of mobile phones and the flow of people at a certain moment or in a certain time period are calculated.
By adopting the technical scheme, the invention at least has the following advantages:
the emergency rescue positioning system is combined with the existing intelligent emergency evacuation system (fire-fighting system) with good layout, the connection between the evacuation indicating lamps arranged at intervals and the central control room is utilized, and on the basis, the WiFi chips are respectively arranged on the evacuation indicating lamps, so that the real-time positioning of personnel can be realized, and the evacuation and emergency command of the personnel is facilitated; in addition, according to the positioning result, people flow rate statistics can be realized, so that the people flow rate statistics system can be independently used.
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The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
Fig. 1 is a working principle block diagram of an emergency rescue positioning system based on an intelligent emergency evacuation system.
Detailed Description
The conventional intelligent emergency evacuation system comprises a plurality of evacuation indicator lamps, wherein the evacuation indicator lamps are respectively arranged on the ground and on a wall at intervals; if the evacuation indicator lamps are generally arranged on the ground every 3 meters and the wall surfaces every 10 meters, the evacuation indicator lamps are respectively in communication connection with a main controller of a central control room and are used for fire rescue.
As shown in fig. 1, in the present embodiment, on the basis of the conventional intelligent emergency evacuation system, each evacuation indication lamp is provided with a WiFi chip for communicating with a mobile phone of a person near the evacuation indication lamp, the MAC physical address of the evacuation indication lamp and the corresponding spatial physical position of the lamp are fed back to the mobile phone of the person near the evacuation indication lamp, the spatial physical position of the mobile phone is obtained, and the spatial physical position or the actual position of the mobile phone obtained by combining the spatial physical position and a building map is fed back to a main controller.
Through the arrangement, the evacuation indication lamp is arranged in the building at intervals, and the distance is relatively short, so that the accurate positioning of personnel is facilitated. After the central control room obtains the positioning information, people in the building can be evacuated and rescuers can be instructed to rescue at fixed points by utilizing the positioning information; because the whole real system need not to add too much extra positioning device (for example need not to lay bluetooth positioning system etc. again), only utilize the equipment of current emergent evacuation system of intelligence to realize, finely tune on it, make the emergent evacuation system of intelligence obtain the utilization of maximize, set up simply convenient to use. In addition, the emergency rescue positioning system can be used for people flow statistics and can be used as a single people flow statistics system.
When the emergency rescue positioning system is used for positioning and evacuating people, the specific implementation mode is as follows:
a person in a building scans a two-dimensional code which is visible everywhere in the building through a mobile phone of the person and transfers the two-dimensional code into positioning software or a small program, the software can acquire MAC physical addresses of a plurality of evacuation indicating lamps (hereinafter referred to as lamps) with positioning functions around the position of the person through controlling a WiFi module of the mobile phone and exchange data with the MAC physical addresses, and the space physical positions of the lamps corresponding to the MAC addresses preset by a server end can be acquired through networking of the software and the server end.
The difference of the fixed distances between the mobile phone and the two or more lamps is converted by calculating the difference of the transmission time of the WiFi wireless carrier signal from the mobile phone to the two or more lamps respectively.
The algorithm distance measurement is realized by the cooperation of two or more lamps and a mobile phone. Because the lamp clock information in a building is synchronous, for lamps and lanterns that the data packet that the cell-phone sent is near can receive at the same time, the space physics position is different, for the same broadcast packet receiving process time that the same cell-phone sent is different, utilize this principle concrete algorithm as follows:
1. the handset sends a broadcast packet to surrounding lights.
2. And (3) receiving the broadcast packet transmitted by the mobile phone in the step (1) by two or more lamps, wherein the time from the transmission of the lamp A to the receiving process by the mobile phone is T1, and the time from the transmission of the lamp B to the receiving process by the mobile phone is T2.
3. The time difference Tc is T1-T2, so that the information and the distance difference between the mobile phone and two or more lamps can be calculated according to d light speed Tc/2.
4. Because the lamps are required by national relevant fire control laws, one wall lamp is generally about 10 meters, one ground lamp is generally about 3 meters, and the radius of a signal transmitted by WiFi is generally between 10 and 50 meters, N lamps can receive information sent by mobile phones, and then the distance difference information between N-1 groups of mobile phones and two or more lamps can be obtained.
5. The space coordinates of the mobile phone with respect to the lamp can be obtained by the polygon method.
6. And (5) the mobile phone software acquires the space physical position of the lamp on the server side by using the MAC address of the lamp, and the space physical position of the mobile phone is obtained by combining the relative coordinates in the step 5, so that the positioning purpose is realized.
7. The position of the mobile phone at the moment can be known by combining the building map acquired by the mobile phone software from the server side, so that the position of a person holding the mobile phone is expressed.
8. Meanwhile, the active evacuation navigation of people is realized by combining the channel route and the position information of the safe exit in the mobile phone software building map.
The emergency rescue positioning system can also be used for emergency command, the traditional emergency rescue system consists of an emergency rescue command center, a rescue personnel hand-held terminal and an investigation unmanned aerial vehicle, when an emergency event such as a fire disaster occurs, the power supply of a general load and a lighting system is automatically cut off according to fire-fighting related laws and regulations in a building, so that the fire risk is reduced, and the traditional commercial indoor positioning system cannot work, but the emergency rescue system belongs to a fire-fighting system, the fire-fighting system mainly uses fire-proof special lines at the beginning of building design due to working specificity (mainly ensuring emergency) lines, so that secondary risk cannot be caused to the fire disaster, the emergency rescue system mainly acts as a fire-fighting escape system, and the system keeps the final system in normal work under various severe conditions, and because the system uniformly executes mandatory national standard, the standardization level is higher, when using in different places, and is compatible better with emergency rescue system, so borrow its particularity, install the wiFi chip additional on lamps and lanterns and realize emergency rescue command function, specifically realize as follows:
1. the WiFi chip and the positioning software are arranged in the handheld terminal, and the positioning method and the emergency evacuation system lamp are also utilized to work cooperatively to realize the positioning of the terminal.
2. The terminal is provided with a cellular network communication function, and the communication function with the emergency rescue command center can be realized through the cooperation of the built-in WiFi chip and the on-site emergency evacuation system lamp when special conditions occur on the site, such as the cellular network communication function fails.
3. The built-in vital sign monitoring sensor of handheld terminal can carry out real-time supervision to the vital sign information of rescue personnel, guarantees rescue personnel life safety.
4. The hand-held terminal is internally provided with a display screen, and can realize navigation and search and rescue route guidance functions by matching with positioning information and a map.
5. Reconnaissance unmanned aerial vehicle embeds wiFi chip, when traditional positioning system and transmission system became invalid, can realize the location navigation with the help of sparse lamps and lanterns and communicate with emergency rescue command center to realize remote control, can transmit the on-the-spot reconnaissance information back to command center simultaneously, supply commander's reference, carry out more accurate emergency rescue commander.
6. The vital sign and position system of the handheld terminal of the rescue worker can also be transmitted back to the command center and displayed on the command large screen, so that the command length can conveniently carry out rescue force allocation.
7. Meanwhile, a mobile phone MAC address is obtained by using a mode that a lamp receives a mobile phone WiFi broadcast packet of trapped people in a building, the number of the trapped people is determined by counting the number of the MAC addresses, the positions of the trapped people are corresponding to the positions of the base stations receiving the MAC address data packets, and the trapped people are transmitted to rescue personnel for rescue through unified scheduling of a command platform.
The emergency rescue system can be used as a people flow rate statistical system, the method is a passive statistical method, people flow mobile phones are used as carriers, the number of the mobile phones is used for roughly representing people flow rate, due to the WiFi characteristic, the mobile phones still broadcast data to the outside for WiFi discovery even when the mobile phones are not connected with a WiFi base station, preparation is made for connection, and the broadcast data contain self MAC address information. The main controller can monitor mobile phone broadcast data packets received by all lamps in the system in real time, extracts MAC address information, and performs data processing uniformly at the controller end, wherein the data processing comprises MAC address duplication checking and MAC address quantity statistics, the mobile phone quantity can be obtained due to the uniqueness of the MAC address, so that the people flow at the moment is determined, the same method is used for counting within a period of time, the total people flow at the period of time, the staying time and the staying place of each person can be obtained, the place is a rough place, and a positioning algorithm cannot be operated on a mobile phone of a user due to a passive counting mode, so that a method that the position of a WiFi base station represents the position of the mobile phone of the received data packet corresponding to the MAC address is used for positioning.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.
Claims (6)
1. An emergency rescue positioning system based on an intelligent emergency evacuation system is characterized in that the intelligent emergency evacuation system comprises a plurality of evacuation indicating lamps in communication connection with a main controller of a central control room, and the evacuation indicating lamps are respectively arranged on the ground and on a wall at intervals;
and WiFi chips are respectively installed on the evacuation indication lamps and used for communicating with mobile phones of people nearby the evacuation indication lamps, the MAC physical address of the evacuation indication lamps and the corresponding lamp space physical position are fed back to the mobile phones of the people nearby, the space physical position of the mobile phone is obtained, and the space physical position or the actual position of the mobile phone obtained by combining the space physical position with a building map is fed back to the main controller.
2. An emergency rescue positioning system according to claim 1, wherein the method for acquiring the spatial physical position of the mobile phone comprises:
the difference of the transmission time of the WiFi wireless carrier signals from the mobile phone to the two or more lamps is calculated, the difference of the fixed distances between the mobile phone and the two or more lamps is calculated, the information of the distance difference between the plurality of groups of mobile phones and the two or more lamps is obtained, and the spatial physical position of the mobile phone relative to the lamps is obtained through a multilateral method.
3. The emergency rescue positioning system of claim 1, further comprising an emergency rescue command center, a rescue personnel handheld terminal, and a reconnaissance drone;
WiFi chips are arranged in the rescue personnel handheld terminal and the reconnaissance unmanned aerial vehicle, and positioning and communication are achieved through cooperative work of the evacuation indicating lamp provided with the WiFi chips.
4. An emergency rescue positioning system according to claim 3, wherein a display screen is built in the rescue personnel handheld terminal, and navigation and search and rescue route guidance functions are realized by matching positioning information and a map.
5. An emergency rescue positioning system according to claim 3, wherein the emergency rescue command center is configured to receive a WiFi broadcast packet of a cell phone of a person trapped in the building by using the evacuation indication lamp, obtain a MAC physical address of the cell phone of the person trapped in the building, determine the number of the person trapped in the building by counting the number of the MAC physical addresses, and correspond to the position of the person trapped in the building by using the position of the base station receiving the MAC physical address data packet; and communicating the location to the rescuer.
6. An emergency rescue positioning system as claimed in claim 1, wherein the emergency rescue positioning system is configured to act as a people flow statistics system;
the master controller monitors mobile phone broadcast data packets received by all evacuation indicating lamps in the system in real time, extracts MAC address information, and performs MAC address duplicate checking and MAC address number counting on the master controller end in a unified manner, so that the number of mobile phones and the flow of people at a certain moment or in a certain time period are calculated.
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| CN112738277A (en) * | 2021-02-03 | 2021-04-30 | 杭州云泊人防科技有限公司 | Crowd emergency collecting and distributing command system and method based on civil air defense facilities |
| CN112863090A (en) * | 2021-01-12 | 2021-05-28 | 王琳 | Intelligent evacuation and rescue navigation system and method based on fire-fighting emergency lamp positioning |
| CN113516823A (en) * | 2021-03-24 | 2021-10-19 | 浙江台谊消防设备有限公司 | Emergency rescue positioning system based on intelligent emergency evacuation system |
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