CN113660747A - Emergency evacuation guiding system based on UWB positioning - Google Patents
Emergency evacuation guiding system based on UWB positioning Download PDFInfo
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- CN113660747A CN113660747A CN202110970064.4A CN202110970064A CN113660747A CN 113660747 A CN113660747 A CN 113660747A CN 202110970064 A CN202110970064 A CN 202110970064A CN 113660747 A CN113660747 A CN 113660747A
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- 238000005516 engineering process Methods 0.000 description 7
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/185—Controlling the light source by remote control via power line carrier transmission
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses an emergency evacuation guiding system based on UWB, wherein a power carrier module is arranged in an emergency indicator lamp, the power carrier module is connected with a power carrier communication terminal through a carrier signal, and the power carrier module is connected with a UWB base station through a wireless network signal; the UWB base station is connected with the UWB positioner through ranging signal, through on the basis of original electric circuit, the cooperation is based on the UWB base station of UWB technique, through power carrier signal connection power carrier communication terminal, realize the wireless networking function and the real-time communication function of evacuation pilot lamp, make the personnel of fleing carry UWB positioner alright according to the guidance route that the extinction control center sent and emergency evacuation lamp show the direction and withdraw with safe in order fast, avoid the personnel of fleing to the wrong fire source danger area, can not take place the unconnection possibility, people's life safety has been ensured.
Description
Technical Field
The invention belongs to the field of public safety, and particularly relates to a guidance system applied to indoor emergency evacuation.
Background
When a fire disaster occurs, indoor escape personnel can escape according to the direction guidance of the fire evacuation indicator lamp. In building buildings and shopping malls, an evacuation guidance system is an indispensable fire-fighting facility and comprises a fire-fighting control center, an evacuation indicator light, communication signal equipment and the like.
The evacuation indicator lamp generally comprises a lighting control circuit board (composed of transformation, charging, LED control, etc.), a light guide plate, a glass plate, etc. The evacuation indicator lamps in the present stage mainly include the following two types:
1. traditional evacuation indicator: the centralized AC220V is used for supplying power and keeps a normally-on state when the fire is not in a fire at ordinary times. When the power supply of the centralized AC220V is cut off, the evacuation indicator lamp keeps a continuous normally-on state for 90 minutes in the continuous power supply state of the rechargeable battery in the evacuation indicator lamp, and prompts a single buzzing sound prompt. This kind of evacuation pilot lamp autonomous working can't judge its direction of instructing, whether has the condition of a fire or danger, in the aspect of evacuation instruction, has certain systematic leak and drawback.
2. Digital evacuation indicator: two-wire system or four-wire system power supply and communication control of safe voltage power supply (DC24V or DC36V) are adopted. Needs to be matched with a fire emergency evacuation indicator lamp controller for use, needs to plan construction of pre-buried bus cables in advance, and has limited number of single-loop lamps (Less than 60 evacuation indicator lamps in general) and long-distance limitation of single circuit line (2.5 mm)2At times, no more than 200 meters); the same brand as the controller, the same communication protocol, etc. are required. The digital evacuation indicator lamp has the problems of certain product limitation, an island protocol, advanced planning of line construction and the like.
In addition, the power supply and the control of the conventional evacuation lamp are both in accordance with independence and stability, and can resist certain fire disasters. Theoretically, the evacuation indicator lamp can integrate a GPS positioning chip, but because the microwave signal transmitted by the satellite is too weak and has high frequency, it is difficult to pass through the wall, so it is difficult to normally receive the signal indoors, and the positioning effect is poor.
However, with the continuous breakthrough of technology and the deep development of application, the power line carrier communication will make great progress in meeting the requirements of modern power system operation control, protecting the real-time performance, rapidity and reliability of information transmission, meeting the requirements of large-capacity information transmission, and the like, so as to adapt to the large trend of global communication development, so that the power line carrier communication develops towards the direction of high speed, wide frequency band and large capacity, and becomes an important and advanced communication means. Meanwhile, an Ultra Wide Band (UWB) technology is a wireless carrier communication technology, and the UWB technology is a hotspot in the present stage due to the advantages of low power consumption, good multipath resistance effect, high safety, low system complexity, capability of providing accurate positioning accuracy and the like. When the traditional UWB base station is arranged in a building, an independent conventional power supply system and a signal transmission link are adopted, so that the possibility of fire disaster resistance exists, and the possibility of disconnection between the UWB base station and an emergency evacuation indicator lamp also exists.
Therefore, how to build a safe and advanced emergency evacuation guidance system is the most urgent concern in the field of fire fighting, and a feasible technical scheme will be obtained by combining power carrier and UWB technology.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an emergency evacuation guiding system based on UWB, which has high safety, real-time positioning and real-time communication.
In order to solve the technical problems, the invention adopts the technical scheme that: an emergency evacuation guiding system based on UWB comprises an LED lamp, a relay control loop and an uninterrupted battery pack, wherein the LED lamp, the relay control loop and the uninterrupted battery pack are arranged in an emergency indicator lamp, a power carrier module is also arranged in the emergency indicator lamp, the power carrier module is connected with a power carrier communication terminal through a carrier signal, and the power carrier module is connected with a UWB base station through a wireless network signal; the UWB base station is connected with the UWB locator through the ranging signal.
Preferably, the power carrier module is composed of a power carrier chip and a communication processing module, the power carrier chip is connected with the power carrier communication terminal through a carrier signal, and the communication processing module is connected with the UWB base station through a wireless network signal.
Preferably, the power carrier chip employs a Cortex M3 processor.
Preferably, the UWB base station is built in an emergency evacuation indicator lamp.
Preferably, the UWB base station employs a DW1000 chip.
Preferably, the relay control circuit is electrically connected to the voice module.
According to the technical scheme, the built-in power carrier module is added to the emergency evacuation indicator lamp on the basis of the original electric circuit, the power carrier communication terminal is connected through the power carrier signal by matching with the UWB base station based on the UWB technology, the wireless networking function and the real-time communication function of the evacuation indicator lamp are realized, an escape person can evacuate quickly and orderly according to a guide route sent by a fire control center and the display direction of the emergency evacuation lamp by carrying the UWB positioner, the escape person escapes to a wrong fire source danger area, the possibility of losing connection is avoided, the life safety of people is guaranteed, the upgrading and reconstruction cost of the whole emergency evacuation guide system is low, and the fire protection requirements of indoor places are met.
Drawings
Fig. 1 is an architecture diagram of a UWB-based emergency evacuation guidance system.
Fig. 2 is a circuit block diagram of a power carrier module.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not interfere with each other.
As shown in fig. 1, the emergency evacuation guidance system based on UWB is mainly composed of emergency evacuation indicator lights, UWB base stations, power carrier communication terminals, positioning data analysis software, and UWB locators.
Emergent sparse pilot lamp distributes in fire control passageway department, and emergent sparse pilot lamp internal integration has power line carrier module, relay control return circuit, incessant group battery, emergent sparse LED lamp and voice module.
As shown in fig. 2, the power carrier module is composed of a communication processing module and a power carrier chip. The communication processing module comprises a power transmitting circuit, a filtering amplifying circuit and a coupling circuit, and is used for amplifying and filtering a signal modulated by the power carrier module, loading the signal onto a power line through the coupling circuit, simultaneously sending a carrier signal from the power line to a receiving filtering amplifying circuit through the coupling circuit, and adding the signal to a power carrier chip after narrowband filtering and signal amplification. The power carrier chip cooperates the communication processing module and peripheral circuit to constitute high performance, little volume power carrier module and power line electricity and be connected, and the power carrier chip is based on haisi PLC-IoT chip Hi3921, and CPU adopts high performance ARM-Cortex M3 treater, operating frequency 200MHz, FLASH in the piece, 512KB, SRAM in the piece: 256KB, piggybacked off-load networking open source operating system LiteOS. The power line carrier communication method has super-strong anti-noise and anti-attenuation performances, can quickly establish a PLC-IoT network, supports a large-scale node tree network and a mesh network, and provides stable, reliable and high-speed power line carrier communication performance. The UART interface of the processor Cortex M3 is connected to peripheral circuits.
The relay control loop module and the uninterrupted battery pack adopt the conventional technology. The voice module is based on a WTN6096 CMOS voice chip, adopts a 16-bit DSP voice chip and internal oscillation 32Mhz, 16-bit PWM decoding, and directly drives an 8R 0.5W loudspeaker. The voice script is composed of "there is danger in the direction here, please go to the left", "there is danger in the direction here, please go to the right", "here is a security exit", and the like.
The electronic carrier communication terminal is configured at a fire control command center or a property management place and is communicated with the positioning data analysis software.
The UWB localizer is used by trapped persons and rescue persons, is distributed in indoor normal passage or key public space, and is considered to be the precondition of convenient acquisition of escape persons. The UWB positioner is provided with a UWB positioning chip, a display screen and a power supply, wherein the display screen and the UWB positioning chip are respectively connected with the power supply, and the display screen can display the indication information sent by the monitoring platform.
The UWB base stations are distributed in a fire control command center, a property management place, an indoor normal channel and a key public space, and can be arranged in an emergency evacuation indicator lamp. The UWB base station communicates with the power carrier communication terminal through a TCP/UDP protocol based on IPv 6. The UWB base station is based on a Decawave DW1000 chip, a power supply interface is 2.8V-3.6V, the transmitting power is-42 dbm/Mhz, the ranging error is less than 10cm, and the chip has good distinguishing and reflecting capacity and realizes indoor wireless ranging. The UWB positioner constantly ranges the distance with the UWB base station of periphery, and UWB positioner sends range finding information for UWB base station simultaneously, and UWB base station transmits background server to through wireless network, and background server calculates the location coordinate.
The working process of the emergency evacuation guiding system based on the UWB comprises the following steps: indoor stranded personnel handheld UWB locator sends the UWB signal, the UWB basic station real-time detection UWB signal that is located the fire control emergency light of fire control passageway, UWB basic station sends corresponding signal and the two-dimensional location data of self to the UWB locator, power carrier communication terminal gets the location data of UWB locator according to the signal and the location data of a plurality of UWB basic stations. The power line carrier communication terminal sends the locating data of stranded personnel and the environmental data of passageway to stranded personnel's UWB locator through UWB basic station, and the unblocked condition of passageway is judged in qualitative change, sends judgement result and environmental data for the display screen of fire control emergency light and UWB locator, and stranded personnel flee according to instructing fast.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (6)
1. The utility model provides an emergent sparse guide system based on UWB, places LED lamp, relay control return circuit and the incessant group battery of emergent pilot lamp in including, its characterized in that: the emergency indicator lamp is also internally provided with a power carrier module, the power carrier module is connected with a power carrier communication terminal through a carrier signal, and the power carrier module is connected with the UWB base station through a wireless network signal; the UWB base station is connected with the UWB locator through the ranging signal.
2. The UWB-based emergency evacuation guidance system of claim 1, wherein: the power carrier module is composed of a power carrier chip and a communication processing module, the power carrier chip is connected with the power carrier communication terminal through a carrier signal, and the communication processing module is connected with the UWB base station through a wireless network signal.
3. The UWB-based emergency evacuation guidance system of claim 2, wherein: the power carrier chip employs a Cortex M3 processor.
4. The UWB-based emergency evacuation guidance system of claim 1, wherein: the UWB base station is arranged in the emergency evacuation indicator lamp.
5. The UWB-based emergency evacuation guidance system of claim 1, wherein: the UWB base station adopts a DW1000 chip.
6. The UWB-based emergency evacuation guidance system of claim 1, wherein: the relay control loop is electrically connected with the voice module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110970064.4A CN113660747A (en) | 2021-08-23 | 2021-08-23 | Emergency evacuation guiding system based on UWB positioning |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110970064.4A CN113660747A (en) | 2021-08-23 | 2021-08-23 | Emergency evacuation guiding system based on UWB positioning |
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2021
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