83results about How to "With remote monitoring function" patented technology

The invention relates to an intelligent shutter control system and an intelligent shutter control method which have the advantages that the wiring operation is avoided, the intelligent level is high, the efficiency is high and the energy is saved. The intelligent shutter control system comprises a remote control terminal and a coordinator unit, wherein the remote control terminal communicates with the coordinator unit through a wireless and Ethernet communication method to complete the setting of system parameters and the enquiry of information; the coordinator unit remotely communicates with the remote control terminal, establishes ZigBee communication with a driver unit and a sensor unit, and is used for receiving daylighting information and user commands and feeding back the field information to the remote control terminal. The system has a PID (Proportion Integration Differentiation) control function which adopts fuzzy control, and the illumination intensity can be self-tuned according to recorded user setting favorites.

The invention discloses an automatic electric switch cabinet fire extinguishing system and a fire recognition method, wherein the automatic electric switch cabinet fire extinguishing system comprises a fire extinguishing agent nozzle which is arranged in an electric switch cabinet; the fire extinguishing agent nozzle is connected with a storage device in which a non-conducting fire extinguishing agent is stored through a pipeline; an electromagnetic valve which is controlled by a central controller is arranged on a pipeline; a photoelectric sensor is also arranged in the electric switch cabinet; and the photoelectric sensor outputs a detection signal to the central controller and then the central controller judges whether to open the electromagnetic valve. The automatic electric switch cabinet fire extinguishing system is capable of responding sudden electric fire and reducing the loss caused thereby. Fire extinguishing agents such as heptafluoropropane and superfine dry powder are used and non-conducting, so that secondary danger caused by conduction of fire extinguishing agents does not occur; and the fire extinguishing agents are environmental-friendly, so that the damage to the environment caused by conduction of fire extinguishing agents also does not occur. The photoelectric sensor is used, so that the fire such as electric arc and the like in the switch cabinet can be rapidly and correctly detected.

The invention discloses an intelligent roller shutter system based on the image processing technique. The intelligent roller shutter system comprises a master control module, a meteorological station, a camera, a GPRS module, an oscillating bar and a roller shutter motor. According to the intelligent roller shutter system, an intelligent weather recognition system based on weather images is established with the master control module serving as a data processing and controlling platform, rain, snow and other severe weather conditions can be effectively judged by collecting the temperature, the humidity, the illumination, the wind speed and direction and other weather information in the meteorological station outside a greenhouse and combining the weather images so that the rolling-up and the pavement of a heat preservation quilt can be controlled in time. By means of the positioning technology of the heat preservation quilt, an operator can accurately control the heat preservation quilt to be located at any position between the initial position and the ending position of the heat preservation quilt when carrying out long-distance operation or operating in a control chamber. Meanwhile, the fault can be intelligently diagnosed, the working state of a roller shutter motor can be monitored in real time, and when the roller shutter motor breaks down, the master control module automatically cuts off a power source of a roller shutter, and therefore the whole system can be safe and reliable.

The invention discloses a reciprocating bending corrosion fatigue testing machine which manly comprises a steel frame, a power mechanism, eccentric wheel mechanisms and an adjusting bracket mechanism. An exciting motor with controllable rotation speed is connected with a speed reducer through a coupler; the speed reducer reverses by 90 degrees through the coupler to drive a rotation shaft to rotate; the rotation shaft is fixed in the length direction of the steel frame through a bearing pedestal; the five eccentric wheel mechanisms are arranged on the rotation shaft, and each eccentric wheel mechanism comprises an eccentric wheel as well as a bearing and a connecting rod which are sleeved outside; the stress of a sample can be adjusted through the eccentricity of the eccentric wheel; the connecting rod of each eccentric wheel mechanism is connected with one end of the sample through a T-shaped block, and the other end of the sample is fixed on a bottom plate of an adjusting bracket; the distance between the adjusting bracket and the rotation shaft can be adjusted to test the sample of different size; and the thickness of a gasket arranged between the sample and the bottom plate of the adjusting bracket can be adjusted to adjust the cyclic load stress ratio. The reciprocating bending corrosion fatigue testing machine has the functions of medium temperature control, motor start / stop control, automatic counting and remote alarm.

An intelligent monitor system of broadcast is prepared as connecting audio collection unit to intelligent monitor host, sending collected audio data to intelligent monitor host by said collection unit and outputting alarm signal to alarm unit by intelligent monitor host when fault is monitored by intelligent monitor host. The intelligent-monitoring method of broadcast is also disclosed.

The invention provides a handle bar of a bicycle. The handle bar comprises a transverse rod and handles arranged at two ends of the transverse rod, wherein a vibration sensor module, a controller module and a wireless communication module are installed inside the transverse rod, and the controller module is in data connection with the vibration sensor module and the wireless communication module respectively; a controller is also in data connection with an air pollution quality detector, an audible and visual alarm device, a GPS (global positioning system) navigation and positioning system and a display device; LED (light-emitting diode) lamps and a solar cell panel are also installed on the transverse rod; and a power module supplies electric energy to the vibration sensor module, the controller module and the wireless communication module. The handle bar is simple in structure and convenient to use, and illumination is realized through the electric energy produced by solar energy, so that the bicycle can be ridden safely at night; a user can know the time and the air quality conveniently at any time, so that the living and life quality is improved; and the handle bar has a wireless alarm function, so that the bicycle is prevented from being stolen, and the safety of the bicycle is improved.

The invention discloses and provides a medical oxygen terminal device and a medical oxygen on-line monitoring system which are simple in structure and low in cost, and have medical oxygen multi-parameter integrated monitoring function, alarm function and remote monitoring function. The medical oxygen on-line monitoring system comprises a remote monitoring device (1) and at least one medical oxygen terminal device (2), wherein the medical oxygen terminal device (2) is connected with the remote monitoring device (1) by a network; the medical oxygen terminal device (2) comprises a centralized oxygen sampling unit (21), a data acquisition unit (22), a display device (23), an alarm device (24) and a remote data transmission device (25); and the centralized oxygen sampling unit (21), the display device (23), the alarm device (24) and the remote data transmission device (25) are respectively and electrically connected with the data acquisition unit (22). The medical oxygen terminal device and the medical oxygen on-line monitoring system are applied to the field of medical gas supply.

The invention discloses an AUV intelligent charging device and a charging method. The AUV intelligent charging device comprises a main power supply module, a voltage and current control module, an interface selection module, an auxiliary power supply module, a charging setting module, a wireless communication module, an intelligent controller module and a voltage, current and temperature detection module; an output end of the main power supply module is connected with a power supply input end of the voltage and current control module; the output end of the voltage and current control module is connected with the power supply input end of the interface selection module; the output end of the auxiliary power supply module is connected with the power supply input end of the intelligent controller module; the charging setting module and the voltage, current and temperature detection module are connected with a signal input end of the intelligent controller module; a control signal output end of the intelligent controller module is connected with the control signal input end of the voltage and current control module and the control signal input end of the interface selection module; and the wireless communication module is connected with the intelligent controller module through a TTL232. The AUV intelligent charging device has the advantages of being simple in structure, convenient to use and remote to control.

The invention discloses a railway tank car used for transporting organic chemical raw materials. The railway tank car comprises a car frame and a tank body which are detachably connected, a heating pipe is welded on the outer side wall of the tank body, a heat insulating layer is wrapped outside each of the tank body and the heating pipe, a windproof cover is wrapped outside each heat insulating layer, and a remote monitoring device is arranged on the tank body. The railway tank car has the advantages that heat insulation of transported media can be realized effectively, and setting time of the transported media can be increased greatly, so that cost needed for heating is reduced. The railway tank car has a remote monitoring function, so that a user can know transportation conditions of the media at any time; the tank body is easy to demount and convenient to maintain.

The invention is electron ballast used in remote control system of gas discharging light. The 220v AC power is connected with the input end of rectifying circuit. The output end of rectifying circuit is separately connected with PFC circuit and input end of internal power circuit. Input end of inverter circuit is connected with input end of inverter circuit. The inverter circuit is connected with input end of the light. State sensing terminal of the light is connected with input end of signal sensing circuit. The output end of internal power circuit is connected with driving circuit. The output end of driving circuit is connected with inverter circuit. The output end of control signal of singlechip is connected with driving circuit. The input end of singlechip is connected with output end of signal sensing circuit. The data end of singlechip is connected with data end of power line carrier module. The communication end of power line carrier module is connected with 220v power line.

The invention discloses an air compressor working environment monitoring system capable of being remotely monitored. The air compressor working environment monitoring system comprises an air compressor working environment monitoring unit and a remote monitoring unit, and the air compressor working environment monitoring unit comprises a second wireless router, a data comparator, a data acquisition unit, a feedback unit, a microprocessor, an alarm unit and an intelligent switch for executing work of switching on or switching off an air compressor. The air compressor working environment monitoring system capable of being remotely monitored has a remote monitoring function; when temperature data, humidity data, air pressure data and oil pressure data are excessively high when the air compressor works, the microprocessor automatically drives the intelligent switch to stop the air compressor from working, the air compressor can be protected from being damaged, and the service life of the air compressor is prolonged; when the temperature data, humidity data, air pressure data and oil pressure data are excessively high when the air compressor works, the air compressor working environment monitoring system capable of being remotely monitored has functions of scene alarm and remote alarm.

An automatic low-voltage circuit breaker control apparatus with a remote monitoring function and an application therefor are disclosed. The apparatus comprises an analog signal collection unit, a data processing unit, a man-machine interaction unit, a tripping execution unit, a remote communication unit and a power supply, wherein a rogowski coil and a current sampling circuit are adopted to input a current signal into an analog signal conditioning circuit; a voltage sampling switching circuit inputs a voltage signal into the analog signal conditioning circuit; the analog signal conditioning circuit inputs an analog signal into an analog multi-path switch to be converted into a digital signal to be input into the data processing unit; a microcontroller in the data processing unit processes the input digital signal, and judges and / or outputs a corresponding trip signal to the tripping execution unit so as to execute a tripping action; and meanwhile, fault scenes and fault reasons are transmitted to a centralized control console through the remote communication unit. The automatic low-voltage circuit breaker control apparatus has the characteristics of accurate multi-working-condition barrier judgment, convenient circuit reconstruction and adjustment, and easy remote monitoring.

The invention discloses an automatic bag replacement deodorization detection disinfection gravity sensing rubbish bin, and relates to the environment protection field. The automatic bag replacement deodorization detection disinfection gravity sensing rubbish bin comprises a bin body, a bin cover seat and a bin cover, wherein a bin cover motor, a front door switch, a gravity sensing module, an ultrasonic distance measurement unit, a display lamp, a ventilating duct, an air fan, an ultraviolet ray lamp, a bag replacement switch, a control module and a battery pack are arranged on the bin cover seat, rubbish bag drive mechanisms with synchronous wheels around a synchronous belt are arranged on two sides of the bin cover seat, and an installation groove used to place rubbish bag rolls which can be pulled is formed in the bin body. The automatic bag replacement deodorization detection disinfection gravity sensing rubbish bin can solve the problems that an existing rubbish bin needs a person to manually replace rubbish bags, and thereby is troublesome to operate, enables the person to easily touch rubbish, does not have an automatic aeration and deodorization function, can not detect the amount of the rubbish inside, can not timely inform the person to clear the rubbish inside and disinfect the existing rubbish bin, and generates foul smells or bacteria, which pollute the environment and influence personal health, the rubbish in the existing rubbish bin overflows after the existing rubbish bin falls, pets rummage or eat the rubbish at random, and therefore not only is environmental sanitation influenced, but also adverse effects are caused on pet health.

The invention discloses an intelligent control system for an air compressor. The intelligent control system comprises a power supply module, an intelligent temperature control system, an intelligent humidity control system, an intelligent pressure control system, a network communication module and a remote mobile terminal. The output end of the power supply module is connected with the power supply input ends of the intelligent temperature control system, the intelligent humidity control system, and the intelligent pressure control system separately, and the intelligent temperature control system, the intelligent humidity control system, and the intelligent pressure control system are all in bidirectional signal connection with a remote monitoring terminal through the network communication module; and the intelligent temperature control system comprises a controller and a temperature sensor used for acquiring the working environment temperature of the air compressor. In the intelligent control system for the air compressor, the intelligent temperature control system, the intelligent humidity control system, and the intelligent pressure control system are all in bidirectional signal connection with the remote monitoring terminal through the network communication module, and field monitoring information can be sent into the remote monitoring terminal through the network communication module, so that the intelligent control system has a remote monitoring function.

The invention discloses an intelligent switch cabinet with remote monitoring function, including cabinet, the left and right sides of the front surface of the cabinet body are connected with a slidingdoor through hinge rotation, The rear surfaces of the sliding doors are provided with handles, the lower surface of the cabinet body is provided with a finite position frame, the lower side of the cabinet body is provided with a base, A limit frame is arranged in the middle of the base, the upper surface of the cabinet body is provided with an air outlet, the upper surface of the cabinet body isprovided with a fan, A fan is arranged corresponding to the air outlet, A Z-shaped plate is arranged on the front side of the upper surface of the cabinet body, the intelligent switchgear cabinet withremote monitoring function, the movable block may be moved on the second t-shaped slider, The angle of the second camera can be adjusted through the second hinge, and the rotation of the fixing platecan drive the rotation of the limiting plate through the connecting pillar, so that the second camera can be rotated and adjusted, the second camera can be aligned with the equipment inside the cabinet, and the interior of the switch cabinet can be monitored.

The invention relates to a remotely controllable power distribution control circuit. The power distribution control circuit comprises a central processing unit MCU, a CAN bus circuit, a digital signal acquisition circuit, an intelligent high side switch circuit, a temperature acquisition circuit and an electromagnetic switch, wherein the CAN bus circuit, the digital signal acquisition circuit, the intelligent high side switch circuit, and the temperature acquisition circuit are connected with the central processing unit MCU, and the electromagnetic switch is respectively connected with the temperature acquisition circuit and the intelligent high side switch circuit. The digital signal acquisition circuit transmits the collected digital signal to the central processing unit MCU, and the central processor MCU determines the validity of the digital signal; the CAN bus circuit is connected to the central processor MCU and a vehicle-mounted driving computer, and the central processor MCU receives and transfers vehicle information through the digital signal acquisition circuit and the CAN bus circuit; the temperature acquisition circuit acquires and monitors the temperature of the electromagnetic switch and transmits to the driving computer through the CAN bus circuit.

The invention discloses an automatic feeding device comprising a spiral feeder, a feeding slot, a heating water tank and a controller; a drive motor of the spiral feeder is electrically connected with the controller; the side face of the controller is provided with a wireless emitter and a receiver; the output pipe of the spiral feeder is connected with the top of the feeding slot; an electromagnetic heating block is electrically connected with the controller through a wire; a second liquid level sensor is electrically connected with the controller through a wire; a temperature sensor is electrically connected with the controller; a second solenoid valve is electrically connected with the controller through a wire; the right side of the heating water tank is provided with a water inlet pipe; a third solenoid valve is electrically connected with the controller through a wire. The automatic feeding device is reasonable in design, simple in operation, high in intelligent level, can improve animal farming industry production efficiency, can enhance monitoring level, and can provide a remote monitoring function.

The invention discloses a concrete crack remote monitoring device which comprises a power supply box, an open circuit alarm, a wireless signal transmitter and a signal receiving device, and further comprises a conducting strip, wherein one end of the conducting strip is electrically connected with one end of the power supply box through a wire, and the other end of the power supply box is electrically connected with the open circuit alarm through a wire; the open circuit alarm is electrically connected to the other end of the conducting strip through a wire and further electrically connected with the wireless signal transmitter; and the wireless signal transmitter is in network communication connection with the signal receiving device. By sending the circuit break signal and the position information to the signal receiving device, a user can remotely obtain the position information of the concrete crack in the development state, the user can be guided to treat the concrete disease in time in a targeted mode, manual on-site troubleshooting work is avoided, manpower and time cost can be saved, and the blank in the field of remote wireless monitoring of concrete cracks is filled.

The invention discloses a fixed fire extinguishing system with a remote monitoring function for a bus compartment and relates to the technical field of fire extinguishing systems. The fixed fire extinguishing system with the remote monitoring function for the bus compartment comprises a bus body, wherein an installation beam plate is fixedly connected between two sides of the inner wall of the busbody; a motor is fixedly connected to the top part of one side of the bus body through an installation box; a screw rod is fixedly connected to one end of a motor output shaft through a coupler; andone end of the screw rod penetrates through the installation box and the bus body so as to extend into the bus body. According to the fixed fire extinguishing system with the remote monitoring function for the bus compartment, support plates are fixedly connected to the two sides of the inner wall of the bus body, so that the compartment is automatically fire-extinguished according to the concentration of welding fume in the compartment, and the aim of remotely controlling the air exhaust operation on the compartment is achieved; and by movably connecting fire extinguishers on the top parts ofthe support plates, the inner part of the compartment can be fire-extinguished in a large scale, so that the installation cost is greatly saved.

The invention discloses a smart gas stove capable of cooking both soup and rice. The smart gas stove comprises a kitchen pot and a gas stove. The smart gas stove is characterized by comprising a control module, a smart pot module and a smart gas stove module, wherein the control module is composed of a central processor; the central processor is connected with a wireless communication module, a 4Gcommunication module and a sensor signal acquisition module; and the central processor communicates with the mobile phone of a use through the 4G communication module. The smart gas stove of the invention has a remote debugging function, is applicable to intelligent integrated control of the pot and the gas stove, and can be operated, corrected and upgraded remotely.

The invention discloses an automatic bag replacement detection rubbish bin, and relates to the environment protection field. The automatic bag replacement detection rubbish bin comprises a bin body, a bin cover seat and a bin cover, wherein a rubbish bag slide rail is arranged on the bin body, a bin cover drive motor, an ultrasonic distance measurement unit, a display lamp, a bag replacement switch, a control module and a battery pack are arranged on the bin cover seat, a rubbish bag drive mechanism provided with at least four synchronous wheels is arranged on each side of the bin cover seat, at least one synchronous wheel is connected with a bag replacement motor, a synchronous belt is wound around the synchronous wheels, the synchronous belt and the rubbish bag slide rail clamp the edge of a rubbish bag, and also can drive the edge of the rubbish bag to slide forwards on the rubbish bag slide rail, and furthermore a support groove used to place rubbish bag rolls is formed in the bin body. The automatic bag replacement detection rubbish bin can solve the problems that an existing rubbish bin needs a person to manually replace rubbish bags, and thereby is troublesome to operate, the person easily touches rubbish, the rubbish amount in the existing rubbish bin can not be detected, the person can not be timely informed to clear the rubbish in the existing rubbish bin, and therefore smelly bacteria generated due to long time storage of the rubbish pollute the environment, are intolerable by the person, and furthermore can enable the person to fall ill.

The invention discloses a clamping structure for cleaning based on the Internet of Things, and relates to the technical field of wafer cleaning. The clamping structure comprises a main body, at leastthree claw parts slidably connected to one end of the main body and used for clamping a wafer, a detection mechanism used for detecting the roundness of the wafer, a control mechanism used for controlling the claw parts to be opened and closed, a processing module connected with the detection mechanism, and a wireless communication module connected with the processing module; the end part of the main body is provided with a plurality of supporting columns used for supporting a wafer; the claw parts are arranged in an annular array by taking the shaft of the main body as the center. The invention provides a clamping structure for cleaning based on the Internet of Things. Remote monitoring can be conducted.

The invention relates to an intelligent distribution transformer which is widely applied to daily state operation and maintenance management of distribution transformers, and belongs to the technicalfield of distribution transformers. The intelligent distribution transformer comprises a first iron core, a second iron core and a third iron core which are immersed in transformer oil, wherein threewindings are arranged outside the three iron cores respectively; each of the three windings comprises a high-voltage coil and a low-voltage coil, wherein a high-voltage coil lead of the first windingpenetrates through a first high-voltage current transformer; a low-voltage coil lead of the first winding penetrates through a first low-voltage current transformer; a power supply coil is further wound outside the first winding; the power supply coil supplies power to a rectifying circuit, a filter capacitor, a GPS positioning module, a 4G module, a current collector and a single-chip microcomputer controller; and the current collector is connected to the high-voltage current transformer and the low-voltage current transformer through leads. According to the intelligent distribution transformer, real-time distribution transformer monitoring can be realized, the daily operation and maintenance management efficiency of the distribution transformer is improved, and the human resource cost isreduced.

The invention belongs to the monitoring technology field and particularly relates to a greenhouse monitoring system capable of realizing safer and more reliable monitoring. The greenhouse monitoring system comprises an air temperature sensor, an air humidity sensor, a CO2 concentration sensor, an illumination intensity sensor, a soil temperature sensor, a soil moisture sensor, a CPU, an EM277 module, an EM235 module, a heater, an air humidifier, a CO2 generator and a soil irrigator. The greenhouse monitoring system is characterized in that the EM235 module is respectively connected with the air temperature sensor, the air humidity sensor, the CO2 concentration sensor, the illumination intensity sensor, the soil temperature sensor, the soil moisture sensor and the EM277 module, the EM277 module is connected with the CPU, and the CPU is respectively connected with the heater, the air humidifier, the CO2 generator and the soil irrigator.

The invention relates to the lamp manufacturing field, in particular to an LED wall lamp with a monitoring function. The LED wall lamp with the monitoring function comprises a main rod; one end of the main rod is connected to a wall, and the other end of the main rod is connected to a connection rod; the bottom of the connection rod is connected to a lampshade; the lampshade is connected to a home use circuit in the wall through electric wires arranged in the main rod and the connection rods; an LED lamp bulb connector is arranged in the lampshade; a camera connector is further arranged in the lampshade and connected to a high-definition camera; a control mainboard is arranged in the lampshade and comprises a micro-processing chip, a signal receiving unit, an LED lamp bulb control unit, a camera control unit and a data transmission unit; the signal receiving unit remotely receives a wireless signal and transmits the wireless signal to the micro-processing chip; the LED lamp bulb control unit and the camera control unit receive an instruction of the micro-processing chip and uses the instruction to control an LED lamp bulb and a camera to be turned on or off; and the data transmission unit is connected with the camera control unit.

The invention discloses a multifunctional arc welding vision monitoring device which comprises a shell, a camera, a lens, an optical filter and a pneumatic connecting bar device. A cooling tube is arranged in a bottom plate of the shell; heat-proof white glass is arranged in a front baffle; a gas cylinder bracket is fixedly connected with the bottom of the shell; a gas cylinder is fixedly connected with the top of the gas cylinder bracket; the end part of a push rod of the gas cylinder is hinged with a filter plate; and the filter plate is connected with the gas cylinder through a connecting bar. A monitoring method is as follows: the gas cylinder is discharged by controlling a switch of a solenoid valve connected with a gas tube before welding; the filter plate is rotated to be horizontal with a push rod; the central lines of the heat-proof white glass, the lens and the camera are collinear; during welding process, the gas cylinder is charged; and the filter plate is rotated to be vertical to the push rod; the central lines of the heat-proof white glass, the optical filter, the lens and the camera are collinear; after welding, the gas cylinder is discharged; the motions before welding are repeated; and the filter plate is rotated to a position outside the shooting scope of the camera. The multifunctional arc welding vision monitoring device has simple and compact structure and low cost, and has the remote monitoring function. The monitoring method is simple, and is convenient to operate.

The invention discloses a kitchen environment security monitoring system based on Internet of Things and a monitoring method of the kitchen environment security monitoring system. The kitchen environment security monitoring system comprises a main controller, a combustible gas concentration sensor, a PM2.5 (Particulate Matter 2.5) concentration sensor, a gas valve closing device, a display screen,an electronic window opener, a buzzer and a GPRS (General Packet Radio Service) communication module, wherein the combustible gas concentration sensor and the PM2.5 concentration sensor are respectively connected with the main controller; the main controller is connected with the GPRS communication module; remote signal transmission can be carried out through the GPRS communication module; the display screen is connected with the main controller and is used for displaying PM2.5 concentration values and combustible gas concentration values; the buzzer is connected with the main controller andis used for giving buzzing alarms; and the main controller is connected with the gas valve closing device and the electronic window opener, and used for achieving control on a gas valve and a window.By adopting the system, concentrations of combustible gases and PM2.5 in a kitchen environment can be monitored, alarm signals can be transmitted once the concentrations exceed standards, the window can be opened, the gas valve can be closed, and thus life and property loss can be effectively avoided.

The invention discloses a photovoltaic grid-connected box of the Internet of Things, and relates to the field of photovoltaic grid-connected boxes. The photovoltaic grid-connected box comprises a box body, a surge protective device, air circuit breakers, an overvoltage and under-voltage protective device, current transformers, an electricity meter, an access control device, a humidity and temperature sensor and a central processor; the photovoltaic grid-connected box is used for sending the information received from the central processor to the Internet of Things module of a cloud server; the air circuit breakers include a first air circuit breaker, a second air circuit breaker and a third air circuit breaker, wherein the first air circuit breaker and the second air circuit breaker are located on the access side of a power grid, the third air circuit breaker is located on the access side of a photovoltaic inverter, the input end of the first air circuit breaker is connected with the power grid, the output end of the first air circuit breaker is connected with the electricity meter, the second air circuit breaker, the overvoltage and under-voltage protective device, the third air circuit breaker, the surge protective device and the photovoltaic inverter in sequence, and the current transformers are installed between the first air circuit breaker and the electricity meter and between the third air circuit breaker and the overvoltage and under-voltage protective device. The photovoltaic grid-connected box has the functions of remote monitoring and electricity larceny prevention.

The invention discloses a large mechanical radiating and ventilating device, which comprises a refrigerating fan, an air supply pipeline, an air quantity regulating valve, a water cooling device arranged on a large mechanical drive mechanism, a plurality of circulating water on-off control valves, a temperature detection unit 1 for detecting external environment temperatures, a temperature detection unit 2 for detecting the internal temperature of the large mechanical drive mechanism, a clock circuit for counting continuous operation time of the large mechanical drive mechanism, a controller for controlling the refrigerating fan and the plurality of circulating water on-off control valves according to information detected by the temperature detection unit 1 and the temperature detection unit 2 in combination with the continuous operation time counted by the clock circuit, a parameter setting unit and a display unit. The device has a reasonable design, a high intelligent degree and a good using effect, is easy and convenient to operate, and can overcome the defects of inconvenience for use and operation, low intelligent degrees, poor radiating effects, inflexible operating modes and the like existing in radiating equipment arranged on the conventional large mechanical equipment.