93results about How to "Ensure fire safety" patented technology

The invention relates to a combined coal powder storage and supply system which comprises a coal powder storage tank, a weighing coal powder supply silo, a pulse-free coal powder supply device and a support; the coal powder storage tank is vertically arranged at the top of the support, the weighing coal powder supply silo is vertically arranged on the support below the coal powder storage tank, the pulse-free coal powder supply device is arranged below a discharging opening of the weighing coal powder supply silo, and a flexible connector in the center at the top of a sealing head of the weighing coal powder supply silo is connected with a discharging opening of the coal powder storage tank through a rotary valve; and a fluidization component is arranged on the outer wall of a conical hopper of the coal powder storage tank, and a coal powder anti-arching stirring device is arranged on a hopper of the weighing coal powder supply silo. The invention has compact structure, reasonable layout, automatic feeding and stable supply and can solve the problems frequently existing in the ordinary coal storage silo and the supply silo of birdnesting, bridging, rat hole, channeling, wall build-up, breakage, self combustion, and the like; and the invention can be widely used in any situation where the small and medium-sized industrial coal powder boilers are required.

The invention discloses a water-based environment-friendly finishing paint, which is prepared from the following compositions in part by weight: 20 to 70 parts of water borne acrylic resin solution of which the solid content is 30 to 80 percent and / or 20 to 70 parts of water borne epoxy resin solution of which the solid content is 30 to 80 percent, 4 to 10 parts of water borne amino resin solution of which the solid content is 60 to 98 percent; 1 to 5 parts of organic amine, 0.2 to 2 parts of wetting and leveling agent, 0.2 to 2 parts of thickener, 0.1 to 0.8 part of defoaming agent, 1 to 5 parts of adhesion promoter, 0.2 to 5 parts of catalyst, 10 to 30 parts of alcohol diluting solvent and / or 1 to 5 parts of nontoxic ether diluting solvent, and 20 to 50 parts of deionized water, wherein the catalyst is one or more of ammonias, alcohols and benzenesulfonic acids. The water-based environment-friendly finishing paint has the advantages of wide applicable range, high hardness, good flexibility, strong adhesion, good scratchproof performance, and environmental protection. Simultaneously, the invention also discloses a method for preparing the water-based environment-friendly finishing paint.

The invention relates to an aqueous environment-friendly packaging steel drum paint, which is prepared by mixing the following compositions in part by weight: 20 to 70 parts of aqueous solution of acrylic resin with a solid content of 30 to 80 percent and / or aqueous solution of epoxy resin with the solid content of 30 to 80 percent, 4 to 10 parts of aqueous solution of amino resin with the solid content of 60 to 98 percent, 1 to 5 parts of organic amine, 1 to 50 parts of filling materials with the granularity of more than 2,000 meshes, 0.5 to 10 parts of color paste, 0.2 to 2 parts of wetting levelling agent, 0.2 to 2 parts of thickening agent, 0.1 to 0.8 part of antifoaming agent, 1 to 5 parts of adhesive force accelerant, 0.2 to 5 parts of catalyst, 0 to 30 parts of alcohol diluting solvent and / or 0 to 5 parts of non-toxic ether diluting solvent, and 20 to 50 parts of deionized water. The aqueous environment-friendly packaging steel drum paint has the advantages of wide application range, high rigidity, good flexibility, strong adhesive force and good anti-scraping and anti-collision properties and environmental protection; and meanwhile, the invention discloses a preparation method for the aqueous environment-friendly packaging steel drum paint.

An image-based method of finding flames with large-space intelligent fire-fighting system relates to the technical field of the combination of the fire-fighting control system and the computer image recognition. The support system of the method comprises a front-end video collecting and processing module, a flame central processing module and a fire-fighting control module. The method comprises the following steps: 1) flame target detection: using a fixed camera to detect flame; 2) flame target location: using at least three cameras to locate the flame target and send the detection information to the central processing module; using the central processing module to receive the information from the fixed camera which detects the flame, performing data fusion, deciding whether to douse the flame; and 3) secondary flame target location: after using a fire monitor to aim the flame, using the fixed camera to aim the flame target secondly, and using the central processing module to control the fire monitor to move. By using the method, real-time fire monitoring can be realized, the real-time control of the fire-fighting system can be realized and fire safety by combining early warning and automatic fire-fighting can be effectively realized.

The invention discloses a light steel composite plate assembled house. The house comprises a foundation, wall plates, floor plates and connecting profiles with grooves. The connecting profiles comprise foundation connecting profiles, wall plate connecting profiles and floor plate connecting profiles. The foundation connecting profiles are fixed on the house foundation, the wall plate connecting profiles are vertically fixed on the foundation connecting profiles, and bottoms of the wall plates are inserted and fixed in grooves of the foundation connecting profiles; the top ends of the wall plate connecting profiles are fixedly connected with the floor plate connecting profiles, and the tops of the wall plates are inserted and fixed in grooves of bottoms of the floor plate connecting profiles; and the floor plates are connected with the floor plate connecting profiles in an inserting or lap joint mode. The light steel composite plate assembled house has the advantages that a mixed structural system formed by the connecting profiles (a light steel structure can be selected) and the wall plates and the floor plates made of high-strength composite insulating plates is provided, parts such as outer wall plates, inner wall plates and the floor plates are effectively integrated with the connecting profiles serving as building unit plate connecting members, and a single-story or multi-story building house is formed.

The invention relates to a funnel fire extinguishing system and a fire extinguishing method.When a fire breaks out in a tunnel, a start button is pressed, or a compressed air foam gun automatically finds a fire area and is automatically started, or a worker remotely starts the compressed air foam gun, a system controller starts a compressed air foam generation device and switches on partition control valves, water flow is automatically adjusted, foam liquid and gas flow can be automatically adjusted according to water flow, compressed air foam is formed and a foam gun in a field worker handheld box is aligned to the fire area for fire exchanging, or the compressed air foam gun is automatically aligned to the fire area for jet fire extinguishing, or the worker remotely controls the compressed air foam gun to be aligned to the fire area for jet fire extinguishing.After fire extinguishing, a system restores the initial state under normal conditions.The problems that the fire extinguishing mode of an existing fire extinguishing technology in the tunnel is single, the fire extinguishing efficiency is low and safe evacuation of staff is not easy are solved.Fire extinguishing efficiency of the system is guaranteed.

The present invention provides a fire safety apparatus for a high-pressure gas storage system which can suitably ensure the fire safety of the high-pressure tank. Preferably, a flame transfer member having superior flammability is provided outside the high-pressure tank having a tank valve on a first end thereof. The flame transfer member extends a second end of the high-pressure tank to the tank valve, so that when a fire occurs, the flame transfer member rapidly burns creating flames and transfers heat from the origin of the fire to a PRD (pressure relief device) provided on the tank valve.

The invention discloses a power utilization potential safety hazard monitoring service system based on a cloud platform. The power utilization potential safety hazard monitoring service system comprises a front-end data acquisition module, an electrical safety monitoring module, a data transmission module, a data supervision center and a line disconnection module. According to the application, thefront-end data acquisition module is matched with the electrical safety monitoring module, the data transmission module and the data supervision center; in combination with technologies of a cloud platform, big data, cloud computing and the like, uninterrupted monitoring of power utilization safety data of a user is realized; the abnormal state of the user electrical system is automatically captured; electrical fire hazard automatic alarm is realized; then, the whole user power utilization system is cut off through the line disconnection module. Therefore, the damage degree of each electricalcomponent can be reduced, the possibility of electrical fire can be reduced to the maximum extent, the purpose of unified and efficient supervision is achieved, the effective supervision level of electrical fire safety control can be greatly improved, and casualties and serious property loss are avoided.

The invention discloses a waterborne acrylic resin and a packaging container coating and a preparation method. The packaging container coating is prepared to solve the problem that the existing waterborne stoving varnish is blistered in thickness and poor in fullness. The preparation method of the waterborne acrylic resin comprises the following steps: adjusting the monomer proportion; modifying through 1, 1-dimethyl-1-heptyl carboxyl glycidyl ester; neutralizing through 2-amino-2-methyl-1-propanol; salifying; and realizing waterborne property to prepare the waterborne acrylic resin which is low in viscosity and good in dispersity to pigments. The preparation method of the packaging container coating comprises the following steps: selecting amino resin; quickly curing without acid catalysis; and preparing a netty crosslinking coating with excellent performance by adopting various pigments and filler. The problem that the waterborne stoving varnish is blistered in thickness is effectively improved, the water resistance of the film is enhanced, the tensile strength is improved, and the fullness of the film is improved.

The invention proposes a fire protection monitoring device and monitoring method of an electric meter box. The monitoring device comprises a signal detection device, an analogue-to-digital signal conversion module, a control unit and an execution mechanism, wherein the signal detection device is connected with the analogue-to-digital signal conversion module, the analogue-to-digital signal conversion module and the execution mechanism are connected with the control unit, the signal detection device comprises a temperature sensor, the temperature sensor is arranged a switch of the power meter box, a trip device, a fire extinguishing device and a switch control module are further arranged, hierarchical control is achieved by setting a hierarchical control threshold according to different temperatures, the first protection monitoring device can be switched to a dormant state, an internal circuit in the electric meter box is controlled to be powered off, and fire is extinguished when fireoccurs; and moreover, the temperature sensor is arranged at the switch, abnormal heating can be timely found out, so that a fire trigger point can be timely found out, and a corresponding measure is taken in advance to prevent the fire.

The invention discloses a very early detection and non-destructive fire-extinguishing device and method for a fire disaster in a small space. The very early detection and non-destructive fire-extinguishing device comprises a detection cavity and a fire extinguishing cavity which are independent of each other. A fan, a detection plate, a first flame detection module and a second flame detection module are arranged in the detection cavity. The detection cavity communicates with the outside through an air inlet pipeline and an exhaust pipeline. The sensitivity of the first flame detection moduleis different from that of the second flame detection module, and the first flame detection module and the second flame detection module are sequentially arranged at a position where air flows throughto determine whether a fire behavior exists in the monitored space, and when the fire behavior exists in the monitored space, the detection plate sends an instruction to the fire extinguishing cavity.The fire extinguishing cavity comprises a spray power device, a spray pipeline and a nozzle. The spray power device receives the instruction to generate an instant shock to spray a fire extinguishingagent into the monitored space through the spray pipeline and the nozzle, so that non-destructive fire extinguishing is realized.

The embodiment of the invention provides a fire control system and method. The fire control system and method are used for monitoring and controlling the fire situation in a power distribution room, thereby improving the power supply safety of the power distribution room and the power supply reliability of a user. In the embodiment of the invention, a fire monitoring sensor, a ventilation module and a fire protection module are arranged in the power distribution room, the fire monitoring sensor can upload monitoring information including temperature information, flame state information and smoke state information to a station control platform through a communication module, so that the station control platform can remotely monitor the fire situation of the power distribution room, and canremotely control (by feeding back first processing information) the ventilation module and the fire protection module to enter a working state to eliminate a fire. Meanwhile, the fire monitoring sensor at the power distribution room also has a self-processing function: when the monitoring information meets a preset condition but the station control platform does not feed back the first processinginformation, the ventilation module and the fire protection module are controlled to enter the working state, thereby doubly ensuring the fire safety of the power distribution room.

The invention discloses a combined distribution type automatic gas fireproof safe system. The combined distribution type automatic gas fireproof safe system comprises a nitrogen gas source, a gas supplying main pipeline, a combined distribution device, control circuits, a control device and at least one fireproof protection space, wherein a gas inlet of the combined distribution device is connected with a gas outlet of the nitrogen gas source by the gas supplying main pipeline; each fireproof protection space is internally provided with a nitrogen gas outlet and an oxygen concentration detection device; each nitrogen gas outlet is connected with a gas outlet of the combined distribution device by a nitrogen gas distribution pipeline; and the control device is connected with the oxygen concentration detection devices and the combined distribution device by the control circuits respectively. According to the combined distribution type automatic gas fireproof safe system, the concentration of oxygen in the space can be automatically controlled and maintained to be below the lowest concentration needed by substance combustion, and can be controlled to be more than the lowest concentration for maintaining the life safety of workers in the fields in which the workers are positioned, so that the aims of preventing from combustion and guaranteeing the safety of the workers are realized; and meanwhile, the explosion accident risk of a high-pressure container is also avoided.

The invention provides an electroacoustic transducing fire extinguisher, which relates to the technical field of fire fighting and fire extinguishing. The electroacoustic transducing fire extinguisher includes a signal generator, a power amplifier, an electroacoustic transducer, an acoustic waveguide and an energy gathering part; a signal generator, a power The amplifier and the electro-acoustic transducer are electrically connected in turn; the signal generator is used to generate low-frequency AC analog electrical signals; the power amplifier is used to amplify low-frequency AC analog electrical signals; the electro-acoustic transducer is used to convert electrical signals into sound waves; one end of the acoustic waveguide It is connected with the electroacoustic transducer, and the other end is connected with the energy-gathering element; the energy-gathering element is provided with a through hole, and the energy-gathering element is used to generate a sound pressure gradient to enhance the output sound wave. The acoustic wind generated by the electro-acoustic transducing fire extinguisher makes the density of the air around the burning object sparsely distributed, thereby realizing fire extinguishing. The device has long service life, no pollution by using physical technology, and is economical; safe to use, has no limit to the amount of fire extinguishing substances, has wide application range, and is easy to operate.

The invention discloses an unmanned fireboat. The unmanned fireboat comprises a hull, a fire fighting system, a camera system, a main control system, a dynamic positioning system, a communication system and an unmanned aerial vehicle system. A rescue plan is that the unmanned fireboat receives the location of a distressed vessel or the water edge through the communication system; a rescuer sends asignal at a remote terminal to perform the fire fighting operation; and a remote terminal device is operated to be connected with the unmanned aerial vehicle system to enable a small unmanned aerialvehicle to fly above a fire source to a safe distance and turn on a camera and a high-powered megaphone for monitoring and life-saving guiding work. The unmanned fireboat has the advantages that the unmanned fireboat can receive a distress signal in real time and arrive at a fire scene; the unmanned fireboat is further provided with an automatic fire extinguishing device, the risk of artificial fire extinguishing is greatly reduced, and the uncertainty of human operation is avoided; and the unmanned aerial vehicle system is arranged to grasp the scene of the disaster more closely, and the success rate and efficiency of disaster relief are effectively improved. The whole system is intuitive, high in operation efficiency and high in safety, and has great application prospects.

The invention discloses an elevator control system and elevator equipment. The elevator control system comprises a light curtain data acquisition module, a light curtain imaging drawing module, an electric vehicle identification module and an elevator work control module; the light curtain data acquisition module is used for acquiring signals received by each receiver of a light curtain; the lightcurtain imaging drawing module is used for drawing an image according to the signals acquired by the light curtain data acquisition module; the electric vehicle identification module is used for comparing the image drawn by the light curtain imaging drawing module with a set image in a database to identify whether the vehicle is an electric vehicle; and the elevator work control module is used for controlling the running state of the elevator equipment according to the identification result of the electric vehicle identification module. According to the elevator control system and the elevator equipment, the situation of a battery car entering the elevator can be monitored in real time, and it is ensured that the imaging situation of the electric car entering the elevator can be accurately displayed when the electric car enters the elevator; and elevator passengers can be prompted to forbid the electric vehicle from going upstairs, so that fire safety of residents is guaranteed.

The invention provides a novel fire-proof and heat-preserving material, which has a foam material body, and is characterized in that: an aluminum foil composite glass fiber cloth is bonded outside the foam material, and the aluminum foil composite glass fiber cloth is aluminum foil and glass fiber cloth with fireproof glue glued together. The present invention also provides a manufacturing process of a new type of fireproof and thermal insulation material, which includes the following steps: preparing aluminum foil composite glass fiber cloth; folding the aluminum foil composite glass fiber cloth; pouring foaming material into the cavity of the formed aluminum foil composite glass fiber cloth ; Closing makes the foaming material react to form a foaming material body; obtain a foaming material body with an aluminum foil composite glass fiber cloth bonded on the outside. The invention is beneficial in that: the aluminum foil composite glass fiber cloth is bonded to the outer surface of the thermal insulation foam material, which can enhance the thermal insulation index, prevent the foam material from burning, and ensure the fire prevention of the thermal insulation foam material. safety.

The invention relates to the technical field of fire extinguishing systems in a building construction stage, and discloses a fire-fighting water system for a super-high-rise building construction stage and a construction method. The system comprises formal fire-fighting intermediate water tanks, a temporary fire-fighting water supply pipe network, and a temporary fire hydrant connected with a water outlet of the temporary fire-fighting water supply pipe network; the upper and lower adjacent fire-fighting intermediate water tanks communicate through rotary conveying pipelines, and temporary rotary conveying pumps are arranged on the rotary conveying pipelines; each fire-fighting intermediate water tank communicates with the temporary fire-fighting water supply pipe network located between the fire-fighting intermediate water tank and the adjacent fire-fighting intermediate water tank in the lower part through a temporary water supply pipeline; and a water outlet of the fire-fighting intermediate water tank located at the uppermost layer in the construction process communicates with a construction water pipeline and a formal fire-fighting water supply pipeline, and the temporary fire-fighting water supply pipe network comprises first-batch fire-fighting water supply vertical pipes and fire-fighting water supply ring pipes, wherein the first-batch fire-fighting water supply vertical pipes and the fire-fighting water supply ring pipes are used for formal fire fighting. According to the system, a part of the formal fire fighting water system is used, so that the disassembly workload is small, and the construction cost is low.

The present invention relates to one kind of liftable and movable monitor roof, which includes one monitor roof, one lifting device, one moving device, one control device and one sealing device. The monitor roof is divided into two halves including one liftable monitor roof and one movable monitor roof; the lifting device set in certain distance to the liftable monitor roof includes one lifting mechanism and one lifting guide mechanism; and the moving device set inside the monitor roof includes one track and electrically driven wheels. The liftable and movable monitor roof capable of being lifted and moved has excellent ventilating and smoke eliminating functions and maximum lighting area.

The invention discloses a long-breadth cultural relic showcase which comprises a showcase body, wherein a multi-section firefighting access structure is arranged on the showcase body; the firefighting access structure comprises a glass sliding door arranged on the back of the showcase, a firefighting blank door arranged on the back of the glass sliding door, a fireproof door arranged on the back of the firefighting blank door and a firefighting access; an escape route formed after the glass sliding door, the firefighting blank door and the fireproof door are opened is communicated with the firefighting access; the linkage sliding door, the firefighting blank door and the fireproof door are automatically linked and opened / closed through a firefighting linkage control system.

The invention discloses a high-performance daylighting roof which comprises mobile skylights, lateral partition plates, ridge top plates, power devices, transmission devices, sealing devices and control devices, wherein the power devices and the driving devices drive the mobile skylights to move on rails to preset positions, and the mobile skylights are sealed by the sealing devices; the tops and the bottoms of the mobile skylights are matched with the ridge top plates and the lateral partition plates; two side edges of all the mobile skylights are matched with each other to form the closed daylighting roof; the high-performance daylighting roof is characterized in that the sealing devices comprises metal keels, cold-bent aluminum plates and aluminum alloy profiles; the sealing devices adopt two low-friction-coefficient adhesive tapes for sealing; partition cavities of the cold-bent aluminum plates are filled with polyurethane foaming materials; the lateral partition plates adopt easily dismounted structures and comprise steel keels, outer layer aluminum plates, inner layer aluminum plastic plates, middle layer glass heat preservation cotton, aluminum alloy profiles, sealing adhesive tapes and connection lug plates; the lateral partition plates are connected with connection pieces on a main body structure through bolts.

The invention discloses a fire-fighting big data integrated management platform, which belongs to the technical field of fire-fighting management, and comprises a fire-fighting Internet-of-Things subsystem, an operation and maintenance management subsystem, a video linkage subsystem and a cloud service platform, the cloud service platform receives information of the fire-fighting Internet-of-Things subsystem, the operation and maintenance management subsystem and the video linkage subsystem and transmits the information to a competent department command center, an operation and maintenance center and a mobile receiving terminal; and the fire-fighting Internet-of-Things subsystem comprises a fire-fighting fire automatic alarm unit, an entrance guard unit, a personnel positioning unit, a video monitoring unit and a fire-fighting water source monitoring unit. According to the invention, the conversion of fire safety management from civil air defense to technical prevention is realized, the normal operation of fire-fighting equipment is ensured, the understanding of each networked user on fire-fighting work is improved, and the orderly operation of fire safety protection work of a transformer substation is effectively promoted.

A high-voltage power source device for an electric dust collector in which an output voltage V and an output current I outputted to an ionizer I and a collector II are detected, and an output voltage signal S1 representing the output voltage V and an output current signal S2 representing the output current I are supplied to a CPU 9, whereby the CPU 9 performs duty control for PWM control using a conversion device, wherein: the CPU 9 acquires the output voltage signal S1 or the output current signal S2 and immediately ceases output of the output voltage V by minimizing the duty of the PWM control when a discharge spark caused by a decrease in the output voltage V is detected; and after a prescribed cessation time elapses, the CPU 9 performs a control so that the voltage increase speed of the output voltage V is set to a moderately increasing curve that is set on the basis of the split ratio of the duty and the sampling speed at which the output voltage signal S1 or the output current signal S2 is acquired.

The invention discloses a water-based acrylic modified saturated polyester, a method for preparing the same and water-based baking aluminum powder paint. Water-based acrylic resin, a water-based saturated polyester resin composition, epoxy resin and amino resin used as film forming materials and unctuous aluminum powder as a coloring material are prepared and are applied to a water-based system, so that the production cost is significantly reduced. The water-based acrylic modified saturated polyester uses water as a diluent so that the water-based acrylic modified saturated polyester is nonpoisonous, tasteless, pollution-free, non-waste, non-flammable and non-explosive, and the VOC content is smaller than 50 to ensure the environmental protection and fire safety and guarantee the health of workers; besides, the formed paint film has the advantages of high hardness, scratch resistance, strong adhesive force, salt mist resistance, salt water resistance, acid and alkali resistance, waterresistance, oil resistance, ultraviolet light resistance, aging resistance, low temperature resistance, damp heat resistance and sweat resistance, can be repeatedly used on the surface of a (water-based, oil-based) old paint film, cannot cause paint film damage, has ultra-strong paint film flexibility and the like.

The invention discloses a scanning imaging monitoring system and method and an electric vehicle entering-ladder scanning imaging monitoring system. The scanning imaging monitoring system comprises a scanning module and a monitoring module, and the scanning module can be connected with an induction module; the scanning module is used for generating an image of an object or / and a person passing through a set area according to the data received by a receiving unit in each time interval point sensing module; the set area serves as an imaging area, the imaging area comprises a plurality of imagingsub-areas, and imaging of each imaging sub-area is determined according to a situation that each receiving mechanism receives data at a key time point; each imaging sub-area comprises a plurality of imaging unit areas, and each imaging unit area determines a color value according to the condition that the corresponding receiving mechanism receives data at at least one corresponding key time point;and the monitoring module is used for judging whether the set object or / and the person passes through the set area or not according to the scanning result of the scanning module. The object or / and the person entering and exiting the set area can be recognized, and the intelligence of the system is improved.

The invention provides a machine room fire-fighting information comprehensive linkage scheduling system and method, which aim at the bottleneck of the traditional fire-fighting technology, are designed through three aspects of environment data intelligent acquisition, data intelligent analysis and power equipment intelligent control, acquire the temperature and humidity, smoke, flame, far infrared heat release signals, electrical load and AI images of a machine room, perform calculation and analysis, discriminate abnormal data through multi-dimensional information comprehensive analysis, and control an air conditioner, a ventilation system, a fireproof door fire extinguisher and a power switch control module according to data linkage. The problems of inaccurate alarm data, untimely alarm data and the like caused by multiple factors such as single environment acquisition data, no data analysis algorithm, incapability of controlling power equipment and the like in traditional fire fighting equipment are solved. Meanwhile, through artificial intelligence analysis, prediction and alarm of potential risks are achieved, power equipment is regulated and controlled, and fire accidents are avoided.

At present, various front-end equipment used for garbage classification appears on the market, and the front-end equipment is based on an artificial classification mode. The invention provides an indoor household garbage automatic sorting device based on artificial intelligence, automatic classification of the household garbage can be realized, an artificial intelligence image classification meansis adopted, the problem that the automatic classification of the household garbage cannot be realized in the prior art is fundamentally solved, and the manual classification of the household garbageis promoted to be automatically classified. According to the indoor household garbage automatic sorting device based on artificial intelligence, the problem that the willingness is insufficient, the classification effect is poor, the labor amount is large, the garbage decrement effect is not obvious and the like due to the fact that the original household garbage artificial classification device is classified according to the autonomous behavior of people are overcome.

The invention discloses an audio matrix host computer, a public broadcasting system, and working methods thereof. The audio matrix host computer comprises a CPU and a digital audio media matrix, a microphone controller, a fire alarm, a fire linkage device, a trigger controller and an external sound source which are respectively connected with the CPU; the CPU receives audio signals from the microphone controller, the fire alarm, the external sound source and the trigger controller, and then obtains the whereabouts of various audio signals, that is audio zones where various audio signals are distributed to; and for each audio zone, the priority of various audio signals distributed to the same audio zone is compared, and then the digital audio media matrix is controlled to output the audio signal with the highest priority distributed to the same audio zone to the corresponding audio zone. The public broadcasting system comprises a plurality of audio matrix host computers, and the CPUs of various audio matrix host computers are in cascade connection. The audio matrix host computer provided by the invention has the advantages of being simple in structure, and does not need complicated connection, so that the installation space and the use cost are saved.

The invention discloses a real-time fire-fighting supervision method and system, and the method comprises the steps: reading alarm data in a latest time period from a database based on a preset period, and transmitting the alarm data to a manager terminal for interface display; in response to a received processing instruction of the management personnel terminal for the alarm data, sending the processing instruction to a corresponding processing personnel terminal to arrange a processing personnel to process, wherein the processing instruction comprises the issued processing personnel terminal and a to-be-processed transaction; and in response to the received feedback data of the processing personnel terminal, returning the feedback data to the management personnel terminal for subsequent processing. The method provided by the embodiment of the invention can ensure the real-time performance of fire-fighting supervision, further can ensure the fire-fighting safety of the located area, and can avoid the investment of more unnecessary manpower and material resources by arranging processing personnel to confirm in time if a false alarm occurs.