Escape route indicating system about hydrogen energy fire

Abstract

The invention discloses an escape route indicating system about a hydrogen energy fire, and the system comprises an information collection module which is used for obtaining a hydrogen concentration value, a temperature value, a wind direction value and obstacle position information in a target region in real time; the information processing module is used for positioning a danger source according to the hydrogen concentration value and / or the temperature value, the danger source triggers and plans a first escape route, and on the basis of the first escape route, planning is conducted again according to the wind direction value and the obstacle position information to obtain a second escape route; and the signal output module is used for pushing the second escape route to the user in at least one form of voice broadcast, visual indication or mobile client pushing. The beneficial effects of the system are that through cooperative work of the information acquisition module, the information processing module and the signal output module, potential hazard sources can be comprehensively monitored in a complex environment, rapid response is realized, reliable escape guidance is provided, and the system is especially suitable for occasions requiring efficient and safe monitoring, such as hydrogen energy fire.

Description

Technical Field

[0001] The invention relates to the field of safety monitoring, and in particular to an escape route indication system for hydrogen fires. Background Art

[0002] Traditional fire safety monitoring systems have certain limitations in environmental parameter monitoring, hazard source analysis and emergency response. Usually, these systems can only monitor a few environmental parameters, but lack comprehensive analysis of multiple parameters.

[0003] Most safety monitoring systems use sensors to locate dangerous sources and plan escape routes. However, the above monitoring systems are relatively limited for the evacuation of hydrogen fires. First of all, compared with traditional oil or natural gas leaks, the special feature of hydrogen leaks is that hydrogen burns as a light blue flame, which is almost imperceptible under daylight conditions, so it is highly concealed. This concealment increases the difficulty of prevention, making fires caused by hydrogen leaks more difficult to detect and deal with in a timely manner. In addition, due to the low density of hydrogen, once a leak occurs, it will be affected by the air pressure and sprayed to a distance of about 5 meters around, and then quickly escape upwards, making it almost impossible to form a gas accumulation situation, and thus lacking the conditions for causing an explosion. Summary of the invention

[0004] In view of the above problems, the present invention proposes an escape route indication system for hydrogen fires, which mainly solves the problems of the background technology.

[0005] In order to solve the above technical problems, the first aspect of the present invention provides an escape route indication system for hydrogen fire, comprising:

[0006] Information collection module, used to obtain hydrogen concentration value, temperature value, wind direction value and obstacle location information in the target area in real time;

[0007] An information processing module, configured to locate a danger source according to the hydrogen concentration value and / or the temperature value, wherein the danger source triggers planning of a first escape route, and based on the first escape route, a second escape route is planned again according to the wind direction value and the obstacle location information;

[0008] The signal output module is used to push the second escape route to the user in at least one form of voice broadcast, visual indication or mobile client push.

[0009] A second aspect of the present invention provides a method for indicating an escape route for a hydrogen fire, comprising the following steps:

[0010] Obtain hydrogen concentration, temperature, wind direction and obstacle location information in the target area in real time;

[0011] Locating a danger source according to the hydrogen concentration value and / or the temperature value, the danger source triggering planning of a first escape route, and planning again a second escape route based on the first escape route according to the wind direction value and the obstacle location information;

[0012] The second escape route is pushed to the user in at least one form of voice broadcast, visual indication or mobile client push.

[0013] In some embodiments, the target area is pre-divided into a number of sub-areas, and paths between all the sub-areas are obtained, each of which is provided with a hydrogen concentration sensor, a temperature sensor, a wind direction sensor, and a camera.

[0014] In some embodiments, the first escape route is planned in a manner including:

[0015] defining the sub-area where the danger source is located as an inaccessible area;

[0016] Taking each of the sub-areas containing personnel as the starting point and all exits away from the danger source as the end point, traverse all paths that do not pass through the inaccessible area to obtain a traversable path;

[0017] The distribution of personnel in each of the sub-areas is obtained in real time, and the passable paths are selectively planned based on whether the personnel in different sub-areas share the same section of the path, so as to generate the first escape route, wherein each of the sub-areas has at least one corresponding first escape route.

[0018] The personnel flow situation in each sub-area is obtained in real time. For the densely populated sub-area, the next node of the sub-area corresponding to the first escape route is used as the starting point to search for at least two paths leading to other first escape routes, and the paths are pushed to the user in the form of visual instructions.

[0019] In some embodiments, the second escape route is planned in a manner including:

[0020] Determining, according to the wind direction value, that the sub-area adjacent to the danger source is defined as a first danger area;

[0021] The sub-area analyzing the obstacle position information is defined as a second dangerous area;

[0022] The paths including the first dangerous area and the second dangerous area are eliminated from the first escape route to generate the second escape route.

[0023] The beneficial effects of the present invention are: through the coordinated work of the information acquisition module, the information processing module and the signal output module, it is possible to comprehensively monitor potential danger sources in a complex environment, respond quickly and provide reliable escape guidance, and is particularly suitable for occasions such as hydrogen fires that require efficient and safe monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a system architecture diagram of an escape route indication system for hydrogen fires disclosed in Embodiment 1 of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention clearer and more specific, the content of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all the contents.

[0026] Embodiment 1

[0027] This embodiment proposes an escape route indication system for hydrogen fire, such as Figure 1 As shown, including:

[0028] The information acquisition module is used to obtain the hydrogen concentration value, temperature value, wind direction value and obstacle location information in the target area in real time.

[0029] In this embodiment, the information acquisition module is deployed through a multimodal sensor network, such as a hydrogen concentration sensor, a temperature sensor, a wind direction sensor, and a camera, to obtain hydrogen concentration values, temperature values, wind direction values, and obstacle location information, respectively. These sensors collect environmental parameters in real time through an embedded system and transmit the data to the information processing module. It can also include a flame ultraviolet sensor and an infrared thermal imager, wherein the flame ultraviolet sensor detects whether there is hydrogen deflagration in the hydrogen storage environment, and the infrared thermal imager monitors the hydrogen deflagration temperature range. A distributed sensor network is adopted, and the sensor nodes are connected through a wireless communication protocol (such as Wi-Fi) to form a mesh network topology to ensure the stability of redundant communication paths and data transmission. The flame ultraviolet sensor and the infrared thermal imager multi-sensor data fusion technology are used to provide information of different dimensions, perform data fusion at the decision-making level, and combine the decision results of different sensors to obtain the final judgment of whether a fire occurs in the hydrogen energy system, thereby triggering an alarm and performing subsequent escape route planning.

[0030] The information processing module is used to locate the danger source according to the hydrogen concentration value and / or temperature value. The danger source triggers the planning of the first escape route. Based on the first escape route, the second escape route is planned again according to the wind direction value and obstacle location information.

[0031] In this embodiment, the information processing module adopts a data fusion method. The module performs a comprehensive analysis on the data obtained by the information acquisition module. The hazard source positioning algorithm determines the location of potential hazard sources by analyzing multi-parameter data.

[0032] The signal output module is used to push the second escape route to the user in at least one form of voice broadcast, visual indication or mobile client push.

[0033] In this embodiment, the signal output module includes a voice broadcast system, a prompt sign lighting device, a mobile client and a data backup device. The voice broadcast system uses a speaker to provide emergency prompts based on the level and location of the hazard source. The prompt sign lighting device displays warning signals of different colors through LED lights. The mobile client receives real-time monitoring data through wireless communication and provides user-customized safety reminders. The data backup device is used to store system operation logs and important data to ensure the security and reliability of the data.

[0034] Embodiment 2

[0035] This embodiment proposes a method for indicating an escape route for a hydrogen fire, comprising the following steps:

[0036] S1, real-time acquisition of hydrogen concentration value, temperature value, wind direction value and obstacle location information in the target area.

[0037] In S1, the target area is pre-divided into several sub-areas, and the paths between all sub-areas are obtained, each of which is provided with a hydrogen concentration sensor, a temperature sensor, a wind direction sensor, and a camera.

[0038] S2, locating the danger source according to the hydrogen concentration value and / or temperature value, the danger source triggers the planning of the first escape route, and based on the first escape route, the second escape route is planned again according to the wind direction value and obstacle location information;

[0039] In S2, the escape route planning algorithm provides users with the optimal escape path based on the location of the hazard source, environmental parameters and building structure. The optimal escape path is calculated in combination with the real-time data of the sensor. The system dynamically updates the alarm-free position, i.e., the safety point, by using the real-time data stream of the sensor, and implements path planning for each safety point using the dynamic planning method. At the same time, the system integrates historical event data, analyzes the correlation between historical events and current data through machine learning, conducts risk prediction and hazard source development trend prediction, and dynamically adjusts the escape route to avoid secondary accidents and congestion.

[0040] In one example, the planning method of the first escape route includes:

[0041] S201, define the sub-area where the hazard source is located as an inaccessible area;

[0042] S202, starting from each sub-area containing personnel and ending at all exits away from the danger source, traversing all paths that do not pass through the inaccessible area to obtain a traversable path;

[0043] S203, obtaining the distribution of people in each sub-area in real time, using the fact that people in different sub-areas share the same path as a screening condition, selectively planning the passable paths, and generating a first escape route, wherein each sub-area has at least one corresponding first escape route.

[0044] In this solution, the planning task of the escape route is divided into two times, wherein the purpose of the planning of the first escape route is mainly to obtain multiple relatively safe escape routes as the basis for the subsequent optimization of the second escape route. The calculation of each sub-area is independent, and multiple passable paths are obtained through traversal calculation. Then the camera will shoot and analyze the number of people contained in this sub-area in real time, and summarize each sub-area. People in different sub-areas try not to share the same path to avoid crowding and reduce the escape speed. It should be noted that each sub-area has at least one corresponding first escape route. If the sub-area loses all the first escape routes after S203 optimization, the passable path output by S202 should be used as the first escape route.

[0045] In one example, the second escape route is planned in the following manner:

[0046] S204, determining, according to the wind direction value, a sub-area adjacent to the danger source as a first danger area;

[0047] S205, analyzing the obstacle position information to define the sub-area as a second dangerous area;

[0048] S206: Eliminate the path including the first dangerous area and the second dangerous area from the first escape route to generate a second escape route.

[0049] In the planning process of the second escape route, the wind direction value and the location of obstacles are taken as the focus of route planning, and the dangerous areas (nodes) are eliminated from the first escape route to obtain the final second escape route.

[0050] Further optionally, it may also include S207, obtaining the personnel flow situation in each sub-area in real time, and for sub-areas with dense population, starting from the next node of the sub-area corresponding to the second escape route, searching for at least two paths leading to other second escape routes, and pushing them to the user in the form of visual instructions.

[0051] In S207, in order to prevent people from more than two sub-areas from crowding into the same escape route, the people are diverted at the next node (intersection bifurcation point) of the sub-area and evacuated to the exit as soon as possible. Under the premise of safety, the subsequent flow of people should no longer converge and lead to different exits.

[0052] S3, pushing the second escape route to the user in at least one form of voice broadcast, visual indication or mobile client push.

[0053] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made based on the essence of the content of the present invention should be included in the protection scope of the present invention.

Claims

1. An escape route indication system for hydrogen fire, characterized in that: include: Information collection module, used to obtain hydrogen concentration value, temperature value, wind direction value and obstacle location information in the target area in real time; An information processing module, configured to locate a danger source according to the hydrogen concentration value and / or the temperature value, wherein the danger source triggers planning of a first escape route, and based on the first escape route, a second escape route is planned again according to the wind direction value and the obstacle location information; The signal output module is used to push the second escape route to the user in at least one form of voice broadcast, visual indication or mobile client push.

2. A method for indicating an escape route for a hydrogen fire, characterized in that: The following steps are involved: Obtain hydrogen concentration, temperature, wind direction and obstacle location information in the target area in real time; Locating a danger source according to the hydrogen concentration value and / or the temperature value, the danger source triggering planning of a first escape route, and planning again a second escape route based on the first escape route according to the wind direction value and the obstacle location information; The second escape route is pushed to the user in at least one form of voice broadcast, visual indication or mobile client push.

3. The escape route indication system for hydrogen fire according to claim 2, characterized in that: The target area is pre-divided into a number of sub-areas, and the paths between all the sub-areas are obtained, each of which is provided with a hydrogen concentration sensor, a temperature sensor, a wind direction sensor, and a camera.

4. The escape route indication system for hydrogen fire according to claim 3, characterized in that: The planning method of the first escape route includes: defining the sub-area where the danger source is located as an inaccessible area; Taking each of the sub-areas containing personnel as the starting point and all exits away from the danger source as the end point, traverse all paths that do not pass through the inaccessible area to obtain a traversable path; The distribution of personnel in each of the sub-areas is obtained in real time, and the passable paths are selectively planned based on whether the personnel in different sub-areas share the same section of the path, so as to generate the first escape route, wherein each of the sub-areas has at least one corresponding first escape route.

5. The escape route indication system for hydrogen fire according to claim 4, characterized in that: The planning method of the second escape route includes: Determining, according to the wind direction value, that the sub-area adjacent to the danger source is defined as a first danger area; The sub-area analyzing the obstacle position information is defined as a second dangerous area; The paths including the first dangerous area and the second dangerous area are eliminated from the first escape route to generate the second escape route.

6. The escape route indication system for hydrogen fire according to claim 5, characterized in that: The personnel flow situation in each sub-area is obtained in real time. For the densely populated sub-area, the next node of the sub-area corresponding to the second escape route is used as the starting point to search for at least two paths leading to other second escape routes, and the paths are pushed to the user in the form of visual instructions.

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