296 results about "Sprinkler system" patented technology

The invention discloses a fire-fighting early warning system and method based on artificial intelligence, and relates to the technical field of intelligent fire-fighting early warning, and the system comprises an environment sensing module which comprises a multispectral sensor, a temperature sensor, a smoke sensor and a high-definition camera, and is used for collecting fire characteristic spectral data and transmitting the data to a data analysis module; the data analysis module comprises an edge calculation unit and a data fusion unit, and is used for performing feature extraction and anomaly detection on the fire feature spectrum data through a deep learning model to generate a fire risk assessment result; the early warning decision module comprises a risk assessment unit, an early warning grading unit and a communication unit, and is used for determining an early warning grade according to a fire risk assessment result and triggering equipment of the execution feedback module; and the execution feedback module comprises a spraying system, an emergency lighting system and an alarm and is used for executing fire emergency measures according to the instruction of the early warning decision module. According to the invention, comprehensive improvement of fire prevention and control efficiency is realized through cooperative work of multiple modules.

The invention relates to the technical field of remote monitoring, in particular to an urban house safety remote intelligent monitoring system and method, and the system comprises a data collection module, a data processing module, an event-driven analysis module, an early warning notification module, a safety control module and a maintenance scheduling module. According to the invention, by comprehensively collecting temperature, humidity, pressure and photoelectric data, the environment can be monitored more comprehensively, real-time data stream comparison can not only accurately identify tiny changes in the environment, but also rapidly respond through abnormal environment indexes, and when the environment data deviates from a normal range, the system can give an alarm in time, so that the environment is protected. The early warning efficiency and accuracy are improved, the measures of emergency response are automatically adjusted according to risk assessment of different levels, the system can take the most appropriate emergency measures according to the actual situation, for example, a water spraying system is automatically started in the case of a fire, the effectiveness and accuracy of house safety monitoring are effectively improved, and the life and property safety of residents is ensured.

The invention discloses a water sprinkling system, a control method of the water sprinkling system and a watering cart, and relates to the technical field of roadway watering, the water sprinkling system comprises a water sprinkling module, a control module and a detection module, the water sprinkling module is used for being arranged on a cart body of the watering cart, and the water sprinkling module comprises a power pump, a driving device and a sprinkling structure; a water inlet of the spraying structure communicates with a water outlet of the power pump, a water inlet of the power pump is used for communicating with the water tank, the output end of the driving device communicates with the input end of the power pump, the driving device is in signal connection with the control module, and the control module is in signal connection with the detection module and used for being in signal connection with a power system of the watering cart. The spraying direction and the spraying water amount of the spraying structure can be adjusted. According to the water sprinkling system, the control method of the water sprinkling system and the water sprinkling truck, the dust removal effect can be better, and the operation efficiency is higher.

The invention provides an installation position recommendation method of a courtyard intelligent sprinkler and a mower control method, and relates to the technical field of sprinklers. The method comprises the following steps: acquiring information of a vegetation coverage area, a movement limited area and a non-movement limited area based on a courtyard map, and performing quantitative judgment on geometric features of the movement limited area to realize accurate identification of a narrow traffic area; when the recommended installation position is determined, the range of the inner side of the movement limited area is excluded, and meanwhile the effective spraying area which can be covered by the installation position of the sprinkler can be maximized. According to the technical scheme, hindering of installation of the sprinkler on a mower or a user passing path can be avoided, and reasonable distribution of water resources can be guaranteed; meanwhile, in combination with the sprinkling irrigation coverage range and lawn mower path planning, cooperative operation of the courtyard intelligent sprinkling irrigation system and the lawn mower is achieved, and the overall efficiency and the intelligent degree of courtyard automation equipment in the operation process are improved.

The invention relates to the field of landscaping sprinkling irrigation, and discloses a landscaping vegetation sprinkling irrigation system and method, and the system comprises a plant physiology and environment perception module, a data processing and physical coupling modeling module, a deep reinforcement learning decision module, a federated learning optimization and model sharing module, and a sprinkling irrigation execution and feedback control module. The sprinkling irrigation method comprises the following steps: collecting plant moisture physiological parameters and environmental factors, carrying out coupling modeling based on an improved Penman-Monteith model, generating an optimal irrigation strategy by utilizing reinforcement learning, updating a global model through federal learning, regulating and controlling sprinkling irrigation system parameters, and realizing real-time monitoring and feedback closed-loop control. A multi-source sensing technology is adopted, the plant moisture physiological parameters and the environmental factors are collected in real time, the high-quality data flow is generated, and the technical effect of accurately monitoring the plant moisture state and the environmental change is achieved.

An irrigation system includes at least one sensor configured to acquire data regarding a water saturation level of an area of soil, a sprinkler configured to provide water to the area of soil, and a control system. The control system is configured to acquire the data from the at least one sensor and adjust a watering scheme of the sprinkler based on the data to provide a desired water saturation level to the area of soil.

In an open-loop heat removal system for a building such as a data center or a home, cool air is supplied to the building by a chilling unit and hot air is expelled from the building without recycling, recirculating, or re-cooling the hot air. For fire suppression, the system receives temperature reading(s) from temperature sensor(s) and determines whether any temperature reading reaches or exceeds a temperature that indicates presence of a fire. If so, a louver positioned over an inlet module is automatically or programmatically closed, shutting off air supply to the building. The system determines whether the building is under a negative pressure internally. If not, an exhaust fan at the outlet of the building is turned on to create a negative pressure internally. The system determines whether an oxygen level of the building indicates that the fire has been contained. If not, a sprinkler system is activated.

The utility model relates to the technical field of urban overpass bridge floor rainwater utilization, and discloses an automatic sprinkling irrigation device utilizing overpass rainwater, which comprises a central controller, a rainwater collecting and settling pond, a spraying system and a spraying system, the rainwater collecting and settling pond is communicated with a bridge floor rainwater discharge pipe, and a settling pond water outlet pipe is connected to the rainwater collecting and settling pond; the spraying system and the spraying system are both connected to a water outlet pipe of the sedimentation tank, and a spraying head of the spraying system and a spraying head of the spraying system are both arranged above the green belt. According to the device disclosed by the utility model, rainwater on the bridge surface of the flyover is used for sprinkling irrigation of green belt plants and dust reduction of road surfaces and air, so that rainfall and rainwater can be fully utilized, municipal water is saved, and gravitational potential energy of the rainwater is used for realizing unpowered automatic sprinkling irrigation; in addition, due to the fact that the device collects part of rainwater with silt on the bridge surface of the flyover, the amount of silt flowing into a municipal pipe network is reduced, and the desilting pressure of the municipal rainwater pipe network is relieved.

The present invention discloses a highly integrated intelligent construction platform for use in the construction of a building's main structure. The platform comprises a Bailey frame and supporting columns. A cantilever support frame is connected below the supporting columns, which is connected to a support guide rail and a lifting mechanism. One end of the Bailey frame extends out of the building's main structure and is connected to a trolley crane. A material distributing machine, a top scaffolding board, a mobile house, a canopy, and a sprinkler system are integrated above the Bailey frame. A lifting material distributing platform is provided below the trolley crane. A construction elevator is provided on the side of the Bailey frame near the mobile house. The support guide rail and the lifting material distributing platform are both connected to a plurality of wall guide seats. A connecting frame is connected between a plurality of supporting columns on the same side. A plurality of groove-shaped structural members are provided on the side of the Bailey frame. The beneficial effects of the present invention are: achieving multi-functional high integration, greatly improving the working efficiency of the intelligent construction platform, reducing manual labor and the need for other external equipment, and achieving cost reduction and efficiency improvement; and convenient lifting and high safety.

The invention provides fire extinguishing spraying equipment which comprises a stator and a rotor arranged outside the stator, a water flow channel is designed in the stator, a connector capable of rotating around the stator is movably connected to the lower end of the stator, a nozzle is connected to the connector, and the connector or the nozzle is in transmission connection with the rotor. And the rotor can drive the nozzle to rotate in a rotating state. Spraying equipment is designed to be of a rotatable positioning water outlet structure, original fixed blasting type fire extinguishing spraying is innovated and upgraded, more accurate fire extinguishing is achieved, the spraying equipment is improved, the fire spreading risk is reduced, the fire prevention and extinguishing capacity of a defense area is greatly improved through application of the technology, and the device is simple in structure, good in durability and high in practicability. And the practicability and the chemical degree are high.

In an open-loop heat removal system for a building such as a data center or a home, cool air is supplied to the building by a chilling unit and hot air is expelled from the building without recycling, recirculating, or re-cooling the hot air. For fire suppression, the system receives temperature reading(s) from temperature sensor(s) and determines whether any temperature reading reaches or exceeds a temperature that indicates presence of a fire. If so, a louver positioned over an inlet module is automatically or programmatically closed, shutting off air supply to the building. The system determines whether the building is under a negative pressure internally. If not, an exhaust fan at the outlet of the building is turned on to create a negative pressure internally. The system determines whether an oxygen level of the building indicates that the fire has been contained. If not, a sprinkler system is activated.

The utility model relates to the technical field of greenhouse sprinkler irrigation, and discloses a greenhouse sprinkler irrigation system, comprising a greenhouse frame, wherein a front fixing plate is installed at the front end of the greenhouse frame, a rear fixing plate is installed at the rear end, and a sprinkler irrigation mechanism and an adjusting component for driving the sprinkler irrigation mechanism to move are arranged in the greenhouse frame, wherein the sprinkler irrigation mechanism comprises a sprinkler irrigation component and a liquid supply component for supplying liquid to the sprinkler irrigation component; a recovery mechanism is also arranged in the greenhouse frame, wherein the recovery mechanism comprises a water receiving tray and a water pump; the utility model can collect water or liquid medicine dripped from a nozzle through the setting of the recovery mechanism, thereby realizing the recycling of water or liquid medicine, which can not only avoid water or liquid medicine dripping onto a planting ground, causing the planting ground in the area to be too wet or too much pesticide to be sprayed, which is beneficial to the growth of vegetables, but also avoid waste of resources, reduce the sprinkler irrigation cost of vegetables, and is beneficial to the planting of greenhouse vegetables.

In an open-loop heat removal system for a building such as a data center or a home, cool air is supplied to the building by a chilling unit and hot air is expelled from the building without recycling, recirculating, or re-cooling the hot air. For fire suppression, the system receives temperature reading(s) from temperature sensor(s) and determines whether any temperature reading reaches or exceeds a temperature that indicates presence of a fire. If so, a louver positioned over an inlet module is automatically or programmatically closed, shutting off air supply to the building. The system determines whether the building is under a negative pressure internally. If not, an exhaust fan at the outlet of the building is turned on to create a negative pressure internally. The system determines whether an oxygen level of the building indicates that the fire has been contained. If not, a sprinkler system is activated.

The invention relates to the technical field of oil field produced water waste heat and gas utilization, in particular to an oil field produced water multi-energy fusion air heat exchange waste heat utilization device and process method. According to the technical scheme, an air-fuel integrated heat pump is installed in the middle of a front box of a container pry, three-phase power of a gas generator set is connected to a compressor through a line and a grid-connected controller, and flue gas is connected with a flue gas heat exchanger through a pipeline; heat generated by the gas generator set is connected with the economizer through cooling liquid for heat dissipation, and the energy storage water tank is connected with a condenser of the air source heat pump through a pipeline and a water pump. The wet curtain system is installed on the side face of the container pry and located on one side of an evaporator of the air source heat pump, and the solar water heater is installed on the top of the container pry and provides hot water for the spraying system. The device has the beneficial effects that low-grade produced water is subjected to heat exchange through air, the defect that a plate-shell heat exchanger is blocked by the produced water is overcome, and comprehensive utilization of waste heat, waste gas, solar energy and air energy of the produced water is achieved.

The invention relates to a spraying system detection method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring an equiaxed diagram of a spraying system in a nuclear power plant; according to the equiaxed diagram, the target orifice plate flow passing through a throttling orifice plate in the circulation pipeline is determined; under the condition that the target orifice plate flow belongs to the standard flow interval, a spraying pump is controlled to be started, and the pipeline flow in a circulating pipeline is detected; and when it is detected that the pipeline flow in the circulation pipeline is the preset flow, all the isolation valves are controlled to be opened in sequence, and the opening time of the isolation valves and the reliability of the circulation pipeline are detected. By adopting the method, the reliability detection of the spraying system can be simply, efficiently and comprehensively completed.

The invention relates to a milling device (20), in particular for a soil milling machine (10). The milling device comprises a rotatable milling drum (22) mounted in a milling drum housing (21) with a rotation axis (23) extending transversely to the working direction (a) of the milling device (20). Furthermore, the milling device (20) comprises a spray device (30) for spraying a substrate (U) to be milled with coolant.The spray device (30) comprises at least two spray bars (31) arranged in the milling drum (22), which can be connected to a coolant supply line (34) that is static relative to the milling drum (22) via a central rotary feedthrough (33) by means of separate lines (32), depending on the rotational position of the spray bars (31) relative to the coolant supply line (34), and can be disconnected from the coolant supply line (34) to interrupt the coolant supply, depending on the rotational position of the spray bars (31) relative to the coolant supply line (34).

The utility model discloses an intelligent spraying system for environment purification, which is characterized in that a liquid storage barrel is fixedly mounted at the middle end of the top of a mounting base, the top of the liquid storage barrel is fixedly connected with a supporting liquid conveying pipe, and the top of the supporting liquid conveying pipe is rotatably connected with a connecting liquid conveying pipe; the top of the connecting liquid conveying pipe is detachably connected with a monitoring box for monitoring environmental dust through a connecting flange, and after the concentration of PM and particulate pollutants in the environment exceeds a warning value, water liquid in the liquid storage barrel is conveyed and sprayed out through the supporting liquid conveying pipe, the connecting liquid conveying pipe, the liquid conveying transverse pipe and the spraying head, so that dust falling and haze removing are achieved, and the environmental protection effect is achieved. And in the spraying process of a liquid conveying transverse pipe and a spraying head, a driving motor, a driving disc and driving teeth are used for driving a rotating fluted disc to do low-speed reciprocating intermittent rotation along a sealing bearing seat, and in cooperation with the horizontally-arranged liquid conveying transverse pipe, the dust falling and haze removing area is wider, and the environment purifying efficiency is improved.

The invention discloses an experimental platform for testing the combustion behavior of a photovoltaic module. The experimental platform mainly comprises a photovoltaic fire simulation system, a smoke collection system, a spraying system, an ignition module and a monitoring system. The photovoltaic fire simulation system mainly comprises a fixing assembly, a building material, an adjustable support, an electric telescopic module and a photovoltaic sample and is used for accurately simulating a building photovoltaic system scene. The smoke collection system is used for increasing a smoke circulation path and filtering smoke; the spraying system is used for performing water spraying filtration on the smoke dust and purifying the filtered sewage; the ignition module is used for simulating ignition sources with different widths and fire source powers and igniting the photovoltaic sample; the monitoring system is used for monitoring the temperature distribution condition, the internal flow field distribution and the mass loss of the photovoltaic sample, the total mass of the filtered smoke and the temperature signal and the radiation heat flow distribution condition of the building material in real time, so that the combustion and spreading conditions of different types of building photovoltaic fire hazards are determined; and thoughts and references are provided for building photovoltaic fire prevention design.

In an open-loop heat removal system for a building such as a data center or a home, cool air is supplied to the building by a chilling unit and hot air is expelled from the building without recycling, recirculating, or re-cooling the hot air. For fire suppression, the system receives temperature reading(s) from temperature sensor(s) and determines whether any temperature reading reaches or exceeds a temperature that indicates presence of a fire. If so, a louver positioned over an inlet module is automatically or programmatically closed, shutting off air supply to the building. The system determines whether the building is under a negative pressure internally. If not, an exhaust fan at the outlet of the building is turned on to create a negative pressure internally. The system determines whether an oxygen level of the building indicates that the fire has been contained. If not, a sprinkler system is activated.

The invention relates to the technical field of spraying devices, in particular to a spraying system for coal mining. Comprising a load platform capable of freely moving on a coal mine excavation face, the load platform is provided with a pump liquid assembly and a spraying frame capable of moving in multiple directions, the output shaft end of the pump liquid assembly is in transmission connection with a pump shaft, a swing cylinder is arranged on the spraying frame, a linkage module a is connected to the pump shaft, and the swing cylinder is driven by the linkage module a and swings up and down in a reciprocating mode. A linkage module b in linkage with the pump shaft is installed on the swing cylinder, the output shaft end of the linkage module b is in transmission connection with a liquid guide fixed shaft and a liquid guide movable shaft capable of reciprocating in the axis direction of the swing cylinder, the liquid guide fixed shaft conveys liquid through a liquid pumping assembly, and the liquid guide movable shaft is driven by the liquid guide fixed shaft. The spraying device has the beneficial effects that when the spraying device sprays, multi-angle circulating dynamic spraying of the spraying mechanism can be achieved through driving linkage of spraying liquid, and then the dust falling coverage range and the dust falling efficiency of a spraying system are improved.

The utility model discloses a half-covering automatic contraction type nozzle which comprises a mounting flange, a valve body and a valve core, wherein the valve core comprises a movable shaft, a nozzle, a fixed block, a compression spring, a movable block, a sealing gasket and a sealing ring, the top of the movable shaft is provided with a nut, the bottom of the movable shaft is provided with the nozzle, the movable shaft is further provided with the movable block, the fixed block and the compression spring, and the side wall of the nozzle is provided with a fan-shaped water outlet groove. And in a non-working state, the nozzle is flush with the mounting surface, so that the activity of workers is not influenced. When a fire occurs, the spraying system is started, water flow pushes the movable block to move downwards, the compression spring on the movable shaft is compressed, meanwhile, the movable shaft is driven to move downwards, and the water flow is finally sprayed out along the fan-shaped water outlet groove of the nozzle at the bottom of the movable shaft; when the fire disaster is relieved, the system is closed, the compression spring on the movable shaft retracts, and the movable shaft is driven to move upwards to the original position, so that the spray head retracts to the original position, the spray head can adjust the direction of the water outlet angle according to the actual situation, directional spraying is achieved, water sources are saved, and the spraying effect is improved.

This application discloses a sprinkler irrigation device, including a water pump, a support frame, a first water pipe, a second water pipe, a connecting rod, a rocker arm assembly, and a dosing assembly. The support frame has a rotary control console with a drive groove. The first water pipe is connected to the water pump and the second water pipe. The second water pipe has a first gear and an atomizing needle. The rocker arm assembly is located at the sprinkler inlet on the second water pipe. The connecting rod is connected to both the rocker arm assembly and the drive groove. The dosing assembly includes a housing, a second gear, a threaded rod, a pressure plate, a one-way valve, a connecting pipe, and a contact piece. The housing slides on the support frame. The second gear meshes with the first gear. The threaded rod is connected to the second gear. The pressure plate is connected to the threaded rod. The one-way valve is connected to the housing. The connecting pipe is connected to both the one-way valve and the first water pipe. The contact piece is connected to both the pressure plate and the rotary control console. This device enables both sprinkler irrigation and pesticide application, improving its utilization rate.

The invention discloses an agricultural greenhouse guiding type sprinkling machine which comprises a suspension bracket, a moving assembly, a function box, a controller, an extending groove plate, a water supply assembly, a sprinkling sliding plate and an adjusting unit.The top of the moving assembly is installed in the suspension bracket, and the top of the function box is fixedly installed at the bottom of the moving assembly; the controller is fixedly installed at the inner top of the function box, and the two ends of the extending groove plate penetrate through the bottom of the function box and are fixedly installed at the bottom of the function box. By adopting the width adjusting assembly and the angle adjusting assembly, the distance and the angle of the sprinkling irrigation square cylinder and the sprinkling irrigation curved cylinder can be adjusted according to different forms and growth stages of vegetables; therefore, the uniformity and coverage range of spray irrigation water flow can be ensured, the requirements of different crops are effectively met, and the problem that the spray range and force cannot be accurately controlled in a traditional spray irrigation system is solved; the vegetable irrigation is relatively comprehensive, and the balanced development of plant root systems can be promoted.

1. Name of the product in this design: Shower head. 2. Purpose of this design: for indoor and outdoor sprinkler systems. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key points of the design: main view. 5. The features of the rear view are shown in perspective view 2, so the rear view is omitted.

The invention provides a pipeline freezing resistance prediction method and system of an automatic sprinkler system. The method comprises the following steps: in a cold environment monitoring area, capturing an ice crystal growth vibration signal through an acoustic emission sensor, and synchronously associating real-time icing rate data; inputting a multi-scale long-short-term memory network, and outputting composite freezing features through a short-time-span memory unit and a long-time-span memory unit; the transmitting power and the modulation rate of the LoRaWAN node are adjusted in a self-adaptive mode, and the high-priority composite freezing characteristics and the geographic position codes of the corresponding pipe sections are transmitted to a far-end control center; ice crystal dynamic parameters and material stress parameters in the composite freezing characteristics are matched based on a pipeline material ice expansion coefficient database, the fracture risk probability of the specific pipe section is calculated, and a pipeline electric heat tracing gradient temperature rising strategy corresponding to the fracture risk probability is activated. According to the technical scheme provided by the invention, the cracking risk of the pipeline of the automatic water-spraying fire extinguishing system in the cold environment is accurately predicted and effectively reduced.

The invention provides a vehicle cabin intelligent spraying system which comprises a thermal imaging monitoring CCTV system and a spraying system, the thermal imaging monitoring CCTV system comprises an infrared thermal imaging camera arranged in a cabin, the camera is arranged over a garage deck, and if the camera monitors that the temperature is abnormal, the CCTV system is triggered to give an alarm; when comprehensive analysis is carried out and it is determined that the area needs to be extinguished, the CCTV system transmits a result to the spraying system through a signal, meanwhile, the ventilation system is closed to isolate air, and the spraying system is automatically started to extinguish the fire; the spraying system comprises a plurality of sprayers corresponding to the parking space positions on the garage deck, and the sprayers are connected with a fire-fighting pipeline on a ship. According to the method, design, prevention, monitoring, remediation, escape / ship abandoning and the like are considered, new technologies such as thermal imaging and AI integration are applied, the safety of the vehicle is protected to the maximum extent, property is protected, and personal safety is protected.

The utility model discloses a dust fall fence for road construction, which relates to the technical field of building construction dust fall and comprises a steel support, a supporting plate is welded at the bottom end of the steel support, a weighting block is fixedly connected to the bottom end of the supporting plate through bolts, and a first cross rod is fixedly connected to one side, close to the bottom end, of the steel support. Steel supports are fixedly connected to the two ends of the first cross rod respectively, a second cross rod is fixedly connected to the position, close to the top end, of one side of each steel support, a plurality of limiting angle irons are fixedly connected to the two sides of each steel support respectively, a plurality of surrounding baffles are fixedly connected between the first cross rod and the second cross rod through the limiting angle irons, and a base is fixedly connected to the upper surface of the second cross rod. A plurality of sound insulation plates are fixedly connected to the upper surface of the base, spraying heads are fixedly connected to the top ends of the sound insulation plates, water conveying branch pipes are fixedly connected to the interiors of the steel supports, disassembly, assembly and repeated use are facilitated through the assembly type design, and the sound insulation plates enable the spraying system to better improve the sound insulation and dust falling effects of a fence.

The invention discloses a fire-fighting self-driven water mist spraying system and method based on the Internet of Things technology, and relates to the technical field of fire-fighting facilities, sensors are installed around spraying equipment to monitor fire alarm parameters, fire alarm indexes are calculated and the operation state of the spraying equipment is judged when abnormity is found, and a fire treatment record is generated when the spraying equipment is started; acquiring fire source article information in historical fire treatment records, summarizing records of the same category, establishing a three-dimensional model, analyzing a risk distance, and dividing risk levels; gathering historical records according to the risk levels, extracting fire extinguishing duration and fire treatment indexes, and establishing a fire extinguishing duration prediction formula; constructing a real-time three-dimensional model and dividing regions, and extracting article information to calculate a real-time risk level; real-time data is monitored, when spraying equipment is started, the regional risk level is obtained, the fire extinguishing duration is predicted, and if the fire extinguishing duration exceeds a threshold value, surrounding spraying equipment is started; the risk of fire loss is reduced.

A building fire risk assessment method, device, storage medium and equipment, which is based on the reliability of the fire water supply and automatic sprinkler system to predict the fire scale, comprising: establishing a building historical fire and fire brigade dispatch database; based on the classified and summarized data after data cleaning, establishing a two-dimensional curve of the fire brigade arrival time and the fire area for different building types according to whether the fire water supply and automatic sprinkler system is intact, and fitting to generate a fire area prediction empirical formula; establishing a real-time operation database of the fire water supply and automatic sprinkler system, establishing a reliability formula of the fire water supply and automatic sprinkler system, and judging the system integrity and the reliability value; generating building fire risk grade classification standards; collecting real-time data to obtain the building fire risk grade determination results, and generating a regional building fire risk map in real time. The application also provides a device, a computer readable storage medium and an electronic device for implementing the above method.

1. The name of this design product: Rotating sprinkler. 2. Application of this design product: nozzle used in sprinkler system. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.