Fire-protection detecting method and device, electronic device and medium

An electronic device, applied to a container-type energy storage system, wherein the container-type energy storage system comprises a fire-protection system, a terminal device, and at least one lithium battery cluster, each of the at least one lithium battery cluster corresponds to at least two analysis sensors, the at least two analysis sensors comprise an aspirating detector and an infrared temperature detector, the at least one lithium battery cluster further corresponds to at least one camera detector, the electronic device comprises a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, the program comprises instructions for executing the following steps:

• obtaining first sampling data from the infrared temperature detector, second sampling data from the at least one camera detector, and third sampling data from the aspirating detector;
• determining a first sampling temperature based on the first sampling data, and determining, based on the first sampling temperature, whether a risk event has occurred in the energy storage container system, wherein the risk event comprises the first sampling temperature being greater than a first preset threshold;
• if it is determined that the risk event has occurred in the container-type energy storage system, determining whether a target lithium battery cluster has caught fire based on the second sampling data from the at least one camera detector and/or the third sampling data from the aspirating detector, wherein determining whether the target lithium battery cluster has caught fire comprises:
• obtaining a sampling smoke concentration based on the third sampling data of the aspirating detector;
• obtaining a sampling image based on the second sampling data of the camera detector;
• if the sampling smoke concentration is greater than a second preset threshold, and/or if the target lithium battery cluster in the sampling image generates at least one of smoke and flames, determining that the target lithium battery cluster corresponding to the aspirating detector has caught fire;
• if it is determined that the target lithium battery cluster has caught fire, calling the fire-protection system to extinguish fire and sending a first prompt message to the terminal device to prompt that the target lithium battery cluster has caught fire;
• continuously obtaining updated first sampling data of the target lithium battery cluster, and determining whether to shut down the fire-protection system based on the updated first sampling data, wherein determining whether to shut down the fire-protection system comprises:
• determining a second sampling temperature of the target lithium battery cluster based on the updated first sampling data;
• calculating a fire extinguishing and cooling rate of the target lithium battery cluster based on a first temperature and a second temperature, wherein the first temperature is a temperature at which the risk event occurred before calling the fire-protection system, the second temperature is the second sampling temperature after calling the fire-protection system, and the fire extinguishing and cooling rate is a temperature change amount of the target lithium battery cluster per unit time;
• if the second sampling temperature is less than a first preset temperature threshold, and if the fire extinguishing and cooling rate of the target lithium battery cluster is greater than a preset fire extinguishing and cooling rate threshold, and temperature does not continue to rise within a preset time range after obtaining the second sampling temperature, shutting down the fire-protection system.