CN105913157A

CN105913157A - Fire-fighting emergency illumination and evacuation indication system intelligent escape logic vector searching algorithm

Info

Publication number: CN105913157A
Application number: CN201610265970.3A
Authority: CN
Inventors: 熊运轩; 黎育楼; 文飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-27
Filing date: 2016-04-27
Publication date: 2016-08-31

Abstract

In the application of an intelligent emergency illumination and evacuation indication system, there are already three algorithms available to decide the indication direction of a marker lamp, namely, the precaution algorithm, the distance concentration algorithm, and a distance diversion algorithm. However, none of the three algorithms are shortcoming-and-error free. In the view of this, the invention adopts vector quantization processing to all possible escape passages through the use of a vector searching algorithm, calculates the escaping direction of each escape channel and broadcasts it to the indicating lights at a final terminal through a broadcasting protocol so that onsite indicating lights can rapidly point to the right escape directions.

Description

Fire emergency and evacuation indication system Intelligent escape logic Vector search algorithm

Technical field

The present invention applies the intelligent emergent in fire protection warning industry to illuminate and evacuation indication system field.

Background technology

Fire emergency and evacuation indication system are the important system that fire protection warning industry forces to use, and this system is in city When electric fault or fire occur, system the EPS comprised powers, on-the-spot offer emergency lighting and path instruction, guides on-the-spot people Member withdraws in order.Increasingly tend to high stratification, maximization, multifunction due to modern architecture, often have many at a floor Bar passage and multiple outlet, be not directly visible outlet the personnel away from exit position, it is necessary to along the instruction side of identification light To finding an exit, occurring in emergency circumstances in fire alarm, the personnel being in scene of fire are more difficult to find peace within the limited time Full outlet, it is therefore desirable to have a set of effective ways that can correctly guide Field Force to withdraw in order to carry out guide field personnel orderly Withdraw." GB17945-2010 fire emergency and evacuation indication system " has worked out the technical standard realizing this target, mark Alignment request fire-fighting emergency headlamp and identification light must be unified into network, at ordinary times monitoring fire fighting lamp malfunction, it is ensured that fire-fighting lamp Tool can well run, and when fire occurs, obtains fire alarm position data with fire protection alarm system linkage, automatically opens up fire-fighting and shine Bright lamp provides illumination, quickly calculates the direction indication of each identification light, and correct guiding Field Force withdraws in order.Determine mark The algorithm of lamp direction indication has prediction scheme method at present, distance set fall into a trap algorithm, distance dispersion three kinds of algorithms of calculating method, these three algorithm All there is serious shortcoming or mistake, the present invention not only completely solves these problems and mistake, and effective.By such as Under comparison, can be it is clear to see that the present invention be unique to the improvement of algorithm and advanced person.

Summary of the invention

In order to adapt to the escape environment of complexity, the state making every effort to realize quickly and accurately emergency evacuation instruction system updates, The present invention gives theory and the method realizing this algorithm in terms of hardware, software, agreement three.

Evacuate the vectorized process in path

As shown in Figure 3, vector, interconnection E are drawn along actual passage₀₀E_0N、E₁₀E_1N、…E_M0E_MN；Vertical passage E₀₀E_MN、E₀₁E_M1、…E_0ME_MN。

Calculate the cross point E of interconnection and vertical passage₀₀、E₀₁、…E_0N、…E_M0、E_M1、…E_MN, two adjacent intersections Point composition interconnection vector (、、…、, (、、…、) ...、、…、)；Vertical passage vector (、、…、), (、、…、 ) ... (、、…、)；Passage vector end-points is the outlet of this passage, can be actual extra exit, Can also be virtual secure outlet, actual extra exit be exactly on-the-spot safety door, just have left fire by personnel after this outlet Calamity is on-the-spot, and this position is provided with obvious exit direction lamp；Virtual secure outlet is defined as interchannel cross point, need via Other passage gets to the extra exit of reality.When fire occurs, if fire alarm point is positioned on vector passage, according to Away from the principle of fire alarm point, the direction of fire alarm point to terminal is being directed correctly to of this display lamp, as shown in Figure 4.Other non-fire The direction indication of alert some passage determines according to Vector search algorithm, as shown in Figure 5, every with actual extra exit for start point search Bar passage vector, calculates every possible path of evacuating and arrives the distance of actual extra exit, and minimum one of chosen distance is dredged Dissipating path, if fire alarm point is not evacuated on path at this, then this direction indication evacuating path is exactly the instruction of this passage Direction.For the scene of multiple extra exits, use the direction pointing to closest extra exit.

Position code coding rule

Due to the multiplex process 8-bit microcontroller of terminal unit, operational capability is limited, it is impossible to process vector data, accordingly, it would be desirable to The plane coordinates of equipment erecting bed doing integer process, after end points does integer process, the coordinate of each point can use two bytes Shaping number represents, we term it position code, wherein high eight-bit is lateral coordinates, and low eight is longitudinal coordinate.Set up an office the plane of P Coordinate is that (x, y), coordinate system yardstick is (W, H), and rounded coordinate (X, Y) can be expressed as

X=(x*255)/W

Y=(y * 255)/H

The position code of P point can be expressed as (X < < 8) | the two byte shaping numbers of Y, and so, it is positioned at fire alarm and the passway for escaping of point occurs On the processor of simply light fixture only need to compare the size of two integers of position code of fire alarm point position code and lamp installation position It is assured that the direction indication of light fixture.

Communication protocol

Calculated all channel number become the shaping number sequence number of two bytes, and the state of every passage is with three word bit tables Show, as shown in the table

000	Passage display lamp is closed
		001	Passage display lamp dextrad indicates
010	Passage display lamp left-hand indicates
		011	The two-way instruction of passage display lamp
100	Passage display lamp is closed
		101	The instruction of passage display lamp dextrad, flicker
110	The instruction of passage display lamp left-hand, flicker
		111	The two-way instruction of passage display lamp, flicker

Protocol data section is as shown in the table

When indicating lamp receives fire alarm message described above, first determine whether whether the data of fire alarm point comprise the logical of light fixture configuration Road sequence number, if comprised, then determines direction indication according to the size of fire alarm position code Yu the position code of display lamp and forces to dodge Bright；The state of display lamp is otherwise determined according to the state of passage.

Fig. 1 is that identification light normally indicates intention.

Fig. 2 is point-to-point communication, emergent right-hand rotation, and indicating lamp sequence of states changes, and points to mistake between identification light B and identification light C Schematic diagram.

Fig. 3 is point-to-point communication, emergent right-hand rotation, the unordered change of indicating lamp state, between indicating lamp B, C, and indicating lamp D, E Between point to mistake schematic diagram.

Fig. 4 is the schematic diagram that distance calculates indicating lamp misrouting of carrying out the coffin upon burial.

Fig. 5 is the vectorized process schematic diagram of fire escape.

Fig. 6 is the display lamp direction indication schematic diagram of fire alarm point place passage.

Fig. 7 is with extra exit as starting point, searches for every the passage shortest path schematic diagram to extra exit.

Fig. 8 is that path vector searching algorithm flow chart is evacuated in extra exit.

Fig. 9 is that path vector searching algorithm flow chart is evacuated in virtual outlet.

Claims

1. the passway for escaping vectorization method that the present invention comprises.

2. the passway for escaping searching algorithm that the present invention comprises, evacuates path vector searching algorithm and virtual outlet including extra exit Evacuating path vector searching algorithm, terminal is away from the algorithm of fire alarm point.