JP2582011B2 - Evacuation guidance method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an evacuation guidance system for guiding evacuation to a nearby emergency exit while avoiding a dangerous passage when a fire occurs.

[0002]

2. Description of the Related Art As this type of evacuation guidance method, Japanese Patent Publication No.
-58519, "Evacuation device linked to disaster prevention equipment", JP-B-59-26992, "Evacuation guidance method", JP-B-5
JP-A-8-53399 "Evacuation guidance method" and the like. Each of them relates to an evacuation guidance system in which a direction-selectable evacuation direction indicator is installed on each evacuation route in an evacuation network including a plurality of evacuation routes.

[0003]

The above-mentioned known techniques are as follows.
In each case, an evacuation direction is determined by avoiding a path obstacle existing between the evacuation route section point and the emergency exit, determining a closest and safe route, determining an instruction direction of an evacuation direction indicator lamp, and performing evacuation guidance. However, the purpose of avoiding the path obstruction point is to determine the evacuation route in consideration of the change in the walking time due to the path obstruction and not to determine the evacuation route. There is a problem lacking in sex. The present invention relates to the degree of the path obstruction with respect to the path obstruction,
That is, an object of the present invention is to determine an evacuation route in consideration of conditions such as difficulty in passing, impassability, and an increase in walking time.

[0004]

According to the present invention, an obstacle coefficient indicating a degree of obstacle is provided for path obstacle information in a small section of an evacuation route, and an evacuation route division point is determined based on the path obstacle information weighted by the obstacle coefficient. It calculates and compares the walking time from the evacuation route to the emergency exit, and guides the people to evacuate according to the designated evacuation route that is the minimum evacuation time from the evacuation route division point.

[0005]

EXAMPLES Referring to FIG. 2, shops, offices, general room _D 1 of the a building such as a _warehouse, D _{2, D} 3 · · · power chamber, special chambers _D 10, D such building management control chamber An evacuation guidance facility for implementing the evacuation guidance system of the present invention for the floor B1 floor having the floor ₁₁ will be described. In FIG. 2, reference numeral 2 denotes an exit indicator which blinks or lights up the exit of the evacuation route where walking time is minimized when there are a plurality of exits installed near the door of each room D, and 3 denotes each room and passage. It is a fire detector installed in.

An evacuation route network including a plurality of evacuation routes (annular passages) connecting a plurality of emergency exits and the above-mentioned rooms is divided into a number of evacuation route subsections L ₁ , L ₂ , L ₃ ,. The evacuation direction indicator lamp 1 is installed in each evacuation route small section. Evacuation direction indicator light 1
Referring to FIG. 4, the display surface is divided into a left direction indicating section 1A, a right direction indicating section 1B and a central character (exit) display section 1C.
Is displayed, and the left direction instructing unit 1A and / or the right direction instructing unit 1B are displayed, and an evacuation direction is instructed and evacuation is guided. Evacuation routes small sections _{L 1, L 2, L 3} , ··
Is set in the passage of the floor B1 floor from a number of evacuation route division points... And is determined between adjacent evacuation path division points. FIG. 3 is a schematic diagram showing only the evacuation route network in FIG. 2 described above.

FIG. 1 shows an example of an evacuation guidance support system for implementing the evacuation guidance method of the present invention. In addition to a conventional fire detector 3, an evacuation direction indicator 1 and an exit indicator 2 are blinkingly displayed. Evacuation direction indicator light 1 and exit indicator light 2
This is an example of a system in which selection of an evacuation guidance direction is controlled by a control device 4 provided in a disaster prevention room, a building management control room, or the like. The control device 4 includes a failure coefficient setting unit 11 for setting a failure coefficient indicating a degree of failure based on the path failure information in the evacuation route small sections L ₁ , L ₂ , L ₃ ,. Based on the weighted effective distance of the evacuation route subsection, the walking time from the evacuation route section point to the emergency exit is calculated and compared, and the walking time from the evacuation path section point to the emergency exit is calculated. The microcomputer 10 has the function of the evacuation route calculating means 12 for determining the shortest evacuation route that minimizes the evacuation route.

FIG. 6 shows an example of a flowchart for achieving the functions of the obstacle coefficient setting means 11 and the evacuation route calculating means 12 in the microcomputer 10. FIG. 7 shows the calculation part of the shortest evacuation route in the flowchart of FIG. 6 (by the Dijkstra method which is one of the solutions of the shortest route for transportation on the network).

In FIG. 6 and FIG. 7, evacuation route subsections L ₁ , L ₂ , L ₃ ,
.. (Fire, smoke, passage obstruction, etc.), the effective distance d _ij is determined. Effective distance d _ij = L _i × α L _i : linear distance
α: Obstacle coefficient The obstruction coefficient α is set in advance by predicting the degree of gait disturbance. Corridor 1 Room 2 Fire, smoke 10 etc. Evacuation direction indicator 1 based on determination of evacuation direction by evacuation route calculating means 12 of control device 4 (microcomputer 10) The direction of the arrow and the lighting of the exit indicator 2 are determined based on the data stored in the microcomputer. FIG. 8 shows an example of evacuation guidance by turning on the evacuation direction indicator light 1 and the exit instruction light 2 when a fire occurs.

FIG. 9 shows the function of claim 3 for adding a smoke diffusion prediction made by comparing the smoke detection time of each of a plurality of smoke detectors centered on a fire point, for example.
The evacuation direction indicator and the exit indicator are forcibly changed by the observer who judges the fire situation by the fire compartment display device and forcibly changes the evacuation direction indicator and the exit indicator by the indicator light change input device. It shows a flow relating to claim 4 including a change operation.

[0011]

According to the present invention, in the evacuation route network composed of a plurality of evacuation routes, a direction selection type evacuation direction indicator light is installed on each evacuation route, and evacuation guidance is performed by the direction selection display of the evacuation direction indicator light. For each evacuation route subsection in which the path obstruction information has been generated, each evacuation route subsection is made to correspond to the degree of the obstruction state such as impossibility, difficulty in passage, increase in walking time, change in the obstruction state, and prediction of the obstruction state With respect to (1), evacuation can be guided to an appropriate emergency exit by an appropriate evacuation route, as compared with a conventional method in which a path obstacle to an emergency exit is simply determined to determine an evacuation direction.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an example of evacuation guidance equipment for implementing an evacuation guidance system of the present invention.

FIG. 2 is a schematic plan view showing an example of evacuation guidance equipment for a floor of a building B1.

FIG. 3 is a schematic diagram of an evacuation net.

FIG. 4 is a front view of an evacuation direction indicator light.

FIG. 5 is a front view of an exit indicator light.

FIG. 6 is a flowchart for evacuation guidance according to claim 1 or 2, which is controlled by a microcomputer that implements the evacuation guidance system of the present invention.

FIG. 7 is a flowchart for calculating the shortest evacuation route in FIG. 5;

FIG. 8 is an explanatory diagram of evacuation guidance by turning on an exit indicator light and an evacuation direction indicator light.

FIG. 9 is a flowchart for evacuation guidance according to claim 3, to which smoke diffusion prediction is added.

FIG. 10 is a view showing an example in which a monitoring operation by a monitoring person is added.
Evacuation guidance flow chart corresponding to.

[Explanation of symbols]

 1 ... evacuation direction indicator light 2 ... exit indicator light 3 ... fire detector 4 ... control device

Claims (4)

(57) [Claims] 1. In an evacuation route network comprising a plurality of evacuation routes composed of a large number of evacuation route sub-sections, a direction-selectable evacuation direction indicator lamp is provided in each evacuation route sub-section at an intermediate portion between the respective evacuation route sub-sections. It arranged, to determine the passage disorder in avoidance Nanro small sections,
In the evacuation guidance method for instructing the evacuation direction, an obstacle coefficient indicating a degree of obstacle is provided for the path obstacle information in the small section of the evacuation route, and walking from the evacuation route section point to the emergency exit is performed based on the path obstacle information weighted by the obstacle coefficient. An evacuation guidance method comprising calculating and comparing times, determining an evacuation route that minimizes a walking time from an evacuation route division point to an emergency exit, instructing an evacuation direction, and performing evacuation guidance. 2. Each time the degree of obstacle in the evacuation obstacle information changes, the walking time is calculated and compared to perform evacuation guidance according to changes in heat, smoke, flame, and other fire conditions. evacuation how of claim 1. 3. An evacuation route based on path obstacle information weighted by the predicted obstacle coefficient, estimating an evacuation route subsection where a passage obstacle is likely to occur and its obstacle coefficient by predicting a smoke diffusion range based on the smoke information. the walking time from segment point to an emergency exit calculated comparison, evacuation how according to claim 1, characterized in that reflecting the smoke spread prediction calculation comparison of walking time. 4. Any and evacuation how according to claim 1, characterized in that forced may change the evacuation direction.