Intelligent disaster prevention and escape method and system

• US 10,322,302 B2
• Filed: 09/09/2014
• Issued: 06/18/2019
• Est. Priority Date: 09/09/2014
• Status: Active Grant

• Current Assignee: Shuo Hong Chen, Xiao Mei Lin
• Original Assignee: Shuo Hong Chen, Xiao Mei Lin
• Inventors: Chen, Shuo hong, Lin, Xiao mei, Wu, Zhi ying
• Primary Examiner(s): Tran, Dalena
• Application Number:
  US15/509,862
• Publication Number:
  US 20170304659A1
• Time in Patent Office: 1,743 Days
• Field of Search: 701423, 34053913, 34053918, 340990, 340993, 4554041, 4554561, 4554563, 455457, 455466, 370328, 370338
• CPC Class Codes: A62B 3/00 Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings A62B1/00 takes precedence
• CPC Class Codes: G01C 21/206 specially adapted for indoor navigation
• CPC Class Codes: G08B 17/00 Fire alarms; Alarms responsive to explosion
• CPC Class Codes: G08B 7/066 guiding along a path, e.g. evacuation path lighting strip

Abstract

An intelligent disaster prevention and escape method includes the steps of: sensing surrounding environment information of plural nodes of a region of a building to generate plural sensing signals of the nodes respectively; calculating a risk coefficient of each node according to the sensing signals; calculating a threat coefficient for plural paths according to the risk coefficients and the distances between the adjacent nodes, for executing an escape path planning algorithm to produce a safest path plan; and producing plural escape instructions for the nodes respectively according to the safest path plan. The invention has the effect of producing the safest path plan according to the risk coefficient and the distance between adjacent nodes, so as to provide safe and immediate escape instructions to guide people to escape and evacuate and reduce casualties.

Claims

1. An intelligent disaster prevention and escape method, comprising the steps of:

sensing surrounding environment information of a plurality of nodes of a region of a building to generate a plurality of sensing signals of the plurality of nodes respectively;

calculating a risk coefficient of each node according to the plurality of sensing signals;

calculating a threat coefficient for a plurality of paths according to the plurality of risk coefficients and a distances between the plurality of adjacent nodes, and further executing an escape path planning algorithm to produce a safest path plan; and

producing a plurality of escape instructions for the plurality of nodes respectively according to the safest path plan;

wherein the escape path planning algorithm executes the steps of;

setting a first node of the plurality of nodes as a calculation starting point, and then selecting and adding an unselected second node with the minimum threat coefficient from in which the unselected second node is chosen from a plurality of adjacent nodes;

adding a third node of the region, and updating the threat coefficient from the third node to the first node or to the second node, and updating record of the minimum threat coefficient of the path with the third node when the minimum threat coefficient is calculated; and

repeatedly adding a new node and calculating a minimum threat coefficient from the new node to any precursor node until all nodes of the region have been selected and added.

2. The intelligent disaster prevention and escape method of claim 1, wherein the escape path planning algorithm is provided for setting each exit node of the plurality of nodes as the calculation starting point to form the safest path plan, wherein an escape direction is the direction from one node toward the precursor node with the minimum threat coefficient.

3. The intelligent disaster prevention and escape method of claim 1, wherein the threat coefficient of the plurality of paths is calculated according to the risk coefficient and the distance between the adjacent nodes to perform the escape path planning algorithm and the safest path plan, further comprises the step of adding an exit node of a second region to the region for calculating the safest path plan.

4. An intelligent disaster prevention and escape system, comprising:

a plurality of sensors installed to the nodes of a region in a building, for sensing surrounding environment information of the plurality of nodes to produce the plurality of sensing signals of plurality of nodes respectively;

a plurality of escape direction instructing devices, installed at the plurality of nodes of the region in the building according to a safest path plan to generate a plurality of escape instructions of the plurality of nodes respectively; and

a processing unit, coupled to the plurality of sensors and the plurality of escape direction instructing devices, for calculating a plurality of risk coefficients of the plurality of nodes according to the plurality of sensing signals; and

calculating a threat coefficient of the plurality of paths according to the plurality of risk coefficients and a distances between the plurality of adjacent nodes for further executing an escape path planning algorithm and producing the safest path plan;

wherein the escape path planning algorithm executes the steps of;

setting a first node of the plurality of nodes as a calculation starting point, and then selecting and adding an unselected second node with the minimum threat coefficient from in which the unselected second node is chosen from a plurality of adjacent nodes;

adding a third node of the region, and updating the threat coefficient from the third node to the first node or to the second node, and updating record of the minimum threat coefficient of the path with the third node when the minimum threat coefficient is calculated through the processing unit; and

repeatedly adding a new node and calculating a minimum threat coefficient from the new node to any precursor node until all nodes of the region have been selected and added.

5. The intelligent disaster prevention and escape system of claim 4, wherein the escape path planning algorithm is provided for sequentially setting each exit node of the plurality of nodes as the calculation starting point to form the safest path plan, wherein an escape direction is the direction from one node toward the precursor node with the minimum threat coefficient.

6. The intelligent disaster prevention and escape system of claim 4, wherein the processing unit is provided for adding an exit node of a second region to the region for calculating the safest path plan.