A dry sprinkler assembly for fire suppression uses a tube within a pipe element to maintain a spring loaded valve in a closed position at the end of the pipe element connected to a piping network. The tube is held against the biasing force of the valve's spring by a plug acted on by the temperature sensitive trigger of the sprinkler mounted on the opposite end of the pipe element.

Antifreezes are provided for deployment in wet sprinkler systems located in cold environments. The antifreezes allow for the wet sprinkler system to be actuated under temperatures below 32° F. Wet sprinklers, sprinkler systems, methods of providing for the control, suppression and/or extinguishment of a fire that occur in a cold environment, and methods of preventing wet sprinklers from freezing also are provided. The sprinklers, sprinkler systems and methods can be used in residential, commercial and storage settings.

In one aspect, data characterizing a video feed acquired by a camera oriented toward and including a field of view of a forecourt of a fueling station can be received. The video feed can be monitored for hazards, and the monitoring of the video feed can include performing automatic hazard detection on the video feed using at least one predictive model that predicts a presence of a hazard within the forecourt of the fueling station. A command can be transmitted in response to the detecting of the presence of the hazard within the forecourt of the fueling station. Related apparatus, systems, methods, techniques, and articles are also described.

In one aspect, data characterizing a video feed acquired by a camera oriented toward and including a field of view of a forecourt of a fueling station can be received. The video feed can be monitored for hazards, and the monitoring of the video feed can include performing automatic hazard detection on the video feed using at least one predictive model that predicts a presence of a hazard within the forecourt of the fueling station. A command can be transmitted in response to the detecting of the presence of the hazard within the forecourt of the fueling station. Related apparatus, systems, methods, techniques, and articles are also described.

An apparatus and method for maintaining integrity of a dry pipe sprinkler system. The apparatus includes an auxiliary drain, the auxiliary drain including an input pipe, a condensate collection area, and a drain pipe; an insulated housing with a door configured to provide a heat controlled environment for the auxiliary drain, and wherein the auxiliary drain is at least partially located within the housing, and the condensation collection area is located within the housing; a heater configured to heat the housing; and an auxiliary drain alarm configured to provide a warning when the auxiliary drain retains a predetermined amount of condensate.

A system for detecting and verifying an environmental anomaly within a shipping container (transported on a transit vehicle having an external transceiver) has wireless sensor-based ID nodes at different locations within the container and multiple command nodes mounted to the container. A first command node is programmatically configured to be operative to detect the sensor data broadcasted from the ID nodes; responsively identify the anomaly based upon the sensor data detected by that command node; and transmit a validation request to another command node. The other command node is configured to be operative to also detect the sensor data broadcasted from the ID nodes; receive the validation request from the first command node; verify the anomaly in response to the validation request and based upon the sensor data detected by the second command node; and broadcast a verification message based upon whether the anomaly for the shipping container is verified.

An autonomous grid storage system (1) arranged in a warehouse space (12). The autonomous grid storage system is divided within the warehouse space, for example on a single floor of said space, into a plurality of sub grids (10a/10b) separated by fire walls (18). One or more bridges (14) pass through openings in the fire wall to allow bin handling vehicles (210/301) to traverse between the sub grids. The openings (20) are provided with closable fire door (22).

An autonomous grid storage system (1) with a foam based fire prevention system. The autonomous grid storage system is in the form of a grid storage structure (104) dived into sub grids (10A, 10B, 10C) separated by firebreak or firebreaks (12). A foam dispensing system (20) dispenses a fire-retardant foam into the firebreak or firebreaks in the event of fire.

A fire detector for monitoring an environment and a method of operating a fire detector including a smoke sensor and a volatile organic compound, VOC, sensor are described. A fire detector 10 for monitoring an environment 20 includes a smoke sensor 12 and a volatile organic compound, VOC, sensor 14, the fire detector 10 is configured to adjust a smoke sensitivity of the fire detector 10 based on a VOC concentration detected by the VOC sensor 14. The smoke sensitivity is decreased when increased VOC concentrations are detected.

A fire detector for monitoring an environment and a method of operating a fire detector including a smoke sensor and a volatile organic compound, VOC, sensor are described. A fire detector 10 for monitoring an environment 20 includes a smoke sensor 12 and a volatile organic compound, VOC, sensor 14, the fire detector 10 is configured to adjust a smoke sensitivity of the fire detector 10 based on a VOC concentration detected by the VOC sensor 14. The smoke sensitivity is decreased when increased VOC concentrations are detected.