33results about How to "Monitor current" patented technology

The invention provides a monitor system of electric fire. According to the monitor system, the problems that the existing electric current can not effectively prevent electric fire and can not deal with power failures easily in real-time and the like are solved, and a comprehensive solution to effective prevention of electric fire is provided. The monitor system of electric fire comprises a server, a database, an external interface, terminal equipment, and a monitor center platform. The server is used for receiving and dealing with all kinds of instructions and sending out processed results. The data base is connected with the server and used for storing all the information. The external interface is connected with the server. The terminal equipment is connected with the server and used for sending real-time monitor data of electrical equipment and electric circuit to the server through wireless network. The monitor center platform is connected with the server, and used for monitoring data information sent by the terminal equipment and timely dealing with fire warning.

The invention discloses a photovoltaic power station monitoring system and method and a storage medium. The photovoltaic power station monitoring system comprises a plurality of MPPT interface monitoring units, an audible and visual alarm and a monitoring terminal which are all connected with an operation controller. Each MPPT interface monitoring unit comprises a voltage and current monitoring module, a temperature sensor and a sunlight radiation sensor; the MPPT interface monitoring units preprocess monitoring data of the voltage and current monitoring module, the temperature sensor and the sunlight radiation sensor and then send the monitoring data to the operation controller in real time, the operation controller sends an operation analysis result to the audible and visual alarm after preset algorithm operation and control strategy analysis, early warning is sent out, and meanwhile the operation analysis result is sent to the monitoring terminal. And real-time monitoring data and early warning information are provided for further operation of an administrator. Compared with the prior art, the photovoltaic power station monitoring system can monitor the working state of the photovoltaic power station in real time, can identify abnormity or fault hidden dangers of photovoltaic strings and assemblies, timely discovers and eliminates faults, and enables the photovoltaic power station to well and orderly work in an optimal state.

An intelligent management system of a seismographic station relates to an intelligent manager, and aims at solving the problem that a remote monitoring function of the seismographic station is incomplete. The intelligent manager comprises an equipment management system for manage data collected by instruments and equipment of the seismographic station, an intelligent power supply system for supplying power to seismic instruments and equipment, a communication management system for controlling communication between a master control system and a station center, an environment and safety monitoring system for monitoring the environment and safety surrounding the seismic equipment, and the master control system for controlling the equipment management system, the intelligent power supply system, the redundancy communication management system and the environment and safety monitoring system in a coordinated manner according to a control instruction of the station center. The system can detect the surrounding environment of the seismographic station, store the collected data, provide DC and AC output, and provide a redundancy function design of two sets of communication equipment, and the monitoring function is complete.

The invention relates to a power assembly suitable for a solar aircraft and an output control method thereof, wherein the power assembly comprises a solar cell panel, a power manager, a power change-over switch, an accumulator, a voltage divider, airborne equipment and a plurality of groups of power execution units, wherein the power manager is respectively connected with the solar cell panel, the power change-over switch and the accumulator; the accumulator is connected with the power change-over switch; the power change-over switch is respectively connected with the airborne equipment and the power execution units through the voltage divider; and the airborne equipment is in communication connection with the power execution units. Compared with the prior art, the power assembly provided by the invention has the advantages of supplying energy sources absorbed by solar energy to electric equipment at maximal efficiency and improving the power output and power consumption conversion efficiency of the aircraft.

The invention discloses an electrical line safety intelligent monitoring instrument which comprises a host and a control panel; wherein the host is provided with a CPU (central processing unit), a current voltage acquisition module, an electric leakage acquisition module, a temperature acquisition module, an overload acquisition module, a power supply processing module, a control loop module, a power-off control module and a communication module, the current voltage acquisition module, the electric leakage acquisition module, the temperature acquisition module, the overload acquisition module,the power supply processing module, the control loop module, the power-off control module and the communication module are electrically connected with the CPU, and the electrical line safety intelligent monitoring instrument further comprises a monitoring power supply input and output interface; the current, the temperature, the voltage, the overvoltage, the leakage current and other informationof each detection point can be monitored for 24 hours in real time; according to the relevant parameters of the loop of electrical line equipment, the cause of faults can be judged, an enterprise is guided to carry out treatment, potential safety hazards of potential electrical line fire disasters are eliminated, and electricity safety is comprehensively guaranteed.

The invention relates to a warehouse electricity utilization monitoring device. The warehouse electricity utilization monitoring device includes a single-chip microcomputer as well as a power source module, a relay control module, a remote communication module, a current transformer, a voltage transformer, an electric leakage sampling module, a sensor group, a remote alarm module and an on-site alarm module which are respectively connected with the single-chip microcomputer; each sensor in the sensor group is connected with the single-chip microcomputer through an optically-coupled isolator; and the power source module is connected with the single-chip microcomputer, the remote alarm module, the on-site alarm module, the remote communication module and the sensors in the sensor group respectively. The warehouse electricity utilization monitoring device provided by the invention can monitor the environment data, current, voltage and data about electric leakage of the warehouse in real time, and transmits detected data to a remote upper computer and receive instruction data of the upper computer, and can realize control on electricity utilization switches of the warehouse, and realize intelligent control on electricity utilization of the warehouse. The warehouse electricity utilization monitoring device has the advantages of simple structure, convenient use and high safety.

The invention belongs to the headache therapeutic instrument control system technical field and relates to a control system for a transcutaneous electrical nerve stimulation physical headache therapeutic instrument. The control system comprises a power supply module, a power source voltage regulation module, a power source management module, a controller circuit and a pulse formation circuit; thepower source module is electrically connected with the pulse formation circuit through the power source voltage regulation module; the power source module is electrically connected with the controllercircuit through the power source management module; the controller circuit is electrically connected with the power source voltage regulation module and the power source management module; and the controller circuit is electrically connected with the pulse formation circuit and is used for detecting the pulse formation circuit. The control system for the transcutaneous electrical nerve stimulation physical headache therapeutic instrument has the advantages of low power consumption, light and simple design structure, simple operation and high safety, and can assist in saving electric energy and regularly monitor the voltage and current of electric pulses. According to the control system of the invention, the service life of a power source can be prolonged, the frequency of the electric pulses can be changed according to the demand of a user; and working modes of three frequencies are designed, so that the user can conveniently select the working modes.

The invention discloses a water level monitoring device and monitoring system for a transformer substation and relates to the technical field of water level monitoring devices. The water level monitoring device comprises an analog quantity input unit, a switch quantity output unit, a central processing unit, a power supply unit, a switch quantity input unit, an address control unit, a wireless signal receiving-emitting unit and an analog quantity output unit. The monitoring device is not only capable of monitoring the water level information in real time to control the running of a water pump but also capable of monitoring the current and voltage of the running water pump in real time to timely discover the abnormal work of the water pump, and the water level monitoring device is featured with safe and reliable use.

The invention provides a cloud electric meter system based on an Internet of Things intelligent circuit breaker and a control method. The system comprises the Internet, a cloud server, a remote user side, an electric charge calculation system, a power utilization control unit and control software, wherein the remote user side is connected with the cloud server through the Internet, the electric charge calculation system is connected with the cloud server through the Internet, the power utilization control unit is connected with the cloud server through the Internet, and the control software isinstalled on the cloud server and the remote user side. One Internet of Things intelligent circuit breaker is correspondingly connected with one electricity user or one path of electric equipment, and the communication module is connected with the cloud server. According to the cloud electric meter system based on the Internet of Things intelligent circuit breaker and the control method providedby the invention, by using the Internet of Things intelligent circuit breaker with the metering function and the autonomously developed software installed on a cloud and a client, refined metering ofelectric quantity, refined calculation of electric charge, real-time remote mobile query of the electric quantity and the electric charge and safe power utilization management can be realized.

The invention relates to a multi-parameter integrated sensor for monitoring an armature winding of a generator, and the sensor comprises a clamping device which is provided with a measurement element.The clamping device comprises an upper clamping part and a lower clamping part, which can be folded together. After folding, an accommodation space is formed at the center of the clamping device, andthe accommodation space wraps and hoops the winding. The upper and lower clamping parts are folded together to generate a clamping force for a stator winding, thereby enabling the measurement elementto sense the dynamic parameters generated in the working process of the winding. The measurement element is connected with a data collector, and the data collector collects the dynamic parameters collected by the measurement element. The sensor can obtain the current, temperature and three-direction vibration signal of a specific branch circuit or a specific coil in different operation states, soas to obtain the real-time fault state information of different wire rods of the generator winding, thereby achieving the purposes of facilitating the installation and disassembly, saving time and reducing a large amount of repeated labor.

The invention discloses an intelligent TEC temperature control circuit which is characterized in that the intelligent TEC temperature control circuit comprises a single-chip microcomputer main control circuit, a temperature acquisition circuit, a current sampling circuit, a voltage control circuit, an H bridge and a switching power supply which are connected with a TEC, wherein the temperature acquisition circuit is used for acquiring the working temperature of the TEC; the current acquisition circuit is used for acquiring the working current of the TEC; the voltage control circuit is used for setting the voltage of the switching power supply; the switching power supply outputs the working voltage of the TEC to the H bridge. The H bridge is used for controlling the switching of heating or cooling of the TEC under the control of the single chip microcomputer main control circuit; the single-chip microcomputer master control circuit is used for analyzing and processing data acquired by the temperature acquisition circuit and the current acquisition circuit and controlling the output voltage of the voltage control circuit, the switching power supply and the H bridge to work. Accurate temperature control of the TEC is achieved, and the circuit is simple in structure, low in cost and wide in application range.

A stored program control exchange power supply management unit of the present invention comprises a chassis, a DC power distribution unit (PDU), a radiating unit and a monitoring host. The DC PDU is arranged inside the chassis, the radiating unit is arranged on the chassis, and the DC PDU comprises an input end, an output end and a rectifier. The input end comprises a master power supply and a standby power supply which are both connected with the rectifier to switch the master power supply and the standby power supply, the output end is connected with the rectifier, and the monitoring host is connected with the DC PDU. The advantages of the present invention are that: the master power supply and the standby power supply are arranged and distributed by the rectifier and are inputted to the equipment by the output end, thereby guaranteeing the situations that one of the master power supply and the standby power supply can supply power to the equipment effectively on the condition that the other one of the master power supply and the standby power supply is interrupted, and a stored program control exchange operates stably, and preventing the service interruption.

The invention relates to a motor apparatus (12) for a switch drive (10) of an electric switch, having an electric motor (14) and a control apparatus (16) for controlling the electric motor (14). The control apparatus (16) has a rectifier unit (34) for rectifying a supply voltage (U0) of the motor apparatus (12), if the supply voltage (U0) is an alternating voltage, and for reverse polarity protection if the supply voltage (U0) is a direct voltage, a voltage measurement unit (36) for collecting the supply voltage (U0) or a rectifier output voltage of the rectifier unit (34), a switch unit (38, 62) for generating a drive voltage (Uou) for the electric motor (14) from the supply voltage (U0) or from the rectifier output voltage; and a control unit (44) for controlling the switch unit (36, 62) as a function of the supply or rectifier output voltage (U0, Ui) detected. According to the invention, the electric motor (14) is an electric motor (14) which is operable by direct current, and the switch unit (38, 62) is a switch unit (38, 62) for generating a drive direct voltage (Uou) for the electric motor (14) which is operable by direct current. The invention also relates to a corresponding method.

The invention relates to an electricity saver for a fluorescent lamp, in particular to an energy-saving invisible electricity saver for a fluorescent lamp with a long service life. The electricity saver is connected in series with a lamp tube; the electricity saver consists of an electricity saving module and a stabilized current protection module; the electricity saving module comprises an oscillating circuit comprising a triode VT1, a triode VT2 and a high-frequency oscillating magnetic ring transformer; the frequency of the oscillating circuit is higher than that of a common fluorescent lamp electricity saver, and has the electricity saving function; and the stabilized current protection module can monitor the variations of electric current and voltage in the monitoring tube and can ensure a stabilized electric current to be output to the lamp tube. The invention has the advantages that the electricity saver produces high-frequency high voltage in working to directly activate, conduct and light fluorescent powder in the lamp tube without impinging on lamp filament or arrow powders at two ends of the lamp tube, and the service life is prolonged by 2-3 times than the lamp tube using a common inductance ballast and an electronic ballast, the invisible electricity saver for the fluorescent lamp can not be burned due to the lamp tube, and further has the function of monitoring temperature, and the power supply is cut off when the temperature of the whole device reaches the limit value.

The invention relates to the technical field of charge and discharge monitoring, in particular to an automatic charge and discharge device, which comprises a load, a charge and discharge unit connected with the load and a power supply respectively, an electric power storage unit connected with the charge and discharge unit, and a hydrogen evolution sensor connected with the electric power storage unit and the charge and discharge unit respectively, wherein the charging and discharging unit comprises a power supply module, a charging module and a main control board, the voltage and current conditions of the charging and discharging unit for the ship are monitored in real time, an audible and visual alarm can be given out when a circuit breaks down, the two rectifying modules are arranged in the charging and discharging unit, the two loops are used alternately, and the service life of the circuit is prolonged. A complete monitoring and guaranteeing system is provided for the electric power storage unit, the charging and discharging device can monitor the hydrogen concentration of the electric power storage unit, when the hydrogen content of the cabin exceeds a set value, the charging and discharging device gives an alarm and stops charging of the storage battery, and when the storage battery is in a charging state, an in-cabin ventilator is automatically started; therefore, the power storage unit is ensured to be at a proper working temperature.

The invention provides a structure device and an installation method of a rack-type ATS. The standard ATS is improved through the structural and electrical design improvement, so that the standard ATScan be easily installed in a 19-inch standard cabinet in the form of a rack, the application is more flexible, and the human cost is saved.

The invention discloses a current transformer waveform monitoring device and a current transformer control system. The monitoring device comprises a data acquisition module which acquires current transformer operation state related data required to be monitored in each operation cycle of a current transformer control algorithm according to the current transformer control algorithm so that monitoring data are obtained; a data acquisition module which is connected with the data acquisition module and used for converting the monitoring data according to the preset communication protocol; and a data display module which is connected with the data transmission module and used for visually displaying the data transmitted by the data transmission module so that current transformer waveform monitoring is realized. Compared with existing waveform monitoring devices, the device is high in real-time performance, and waveform of voltage and current outputted by the current transformer can be monitored in real time. Other hardware equipment does not need to be carried by debugging personnel when the waveform of the current transformer is monitored.

The invention relates to the technical field of intelligent monitoring, and discloses a wireless communication three-phase power utilization monitoring terminal, which comprises a sampling module, a three-phase metering module, a main control module, a communication interface module, a wireless communication module, an EEPROM memory and a switching power supply; the switching power supply is connected with the three-phase four-wire system circuit, the input end of the sampling module is connected with the three-phase four-wire system circuit, and the output end of the sampling module is connected with the input end of the three-phase metering module and used for collecting electrical quantity parameters such as three-phase voltage and current; and the output end of the three-phase metering module is connected with the main control module and used for processing electrical quantity parameter data, the main control module is further electrically connected with the communication interface module, the wireless communication module and the EEPROM memory, and the main control module stores the processed data in the EEPROM memory. Compared with the prior art, the monitoring terminal realizes accurate power utilization information acquisition and processing and reliable data remote transmission functions.

The invention relates to an electric quantity monitoring accessory for a direct-current molded case circuit breaker, and belongs to the technical field of ship low-voltage direct-current power. The electric quantity monitoring accessory comprises a shell base, an embedded fixing piece, a PCB A, a PCB B and a shell cover. The shell base is connected with the shell cover, and the embedded fixing piece, the PCB A and the PCB B are arranged on the shell base between the shell base and the shell cover. The PCB A is connected with the PCB B. The electric quantity monitoring accessory is embedded ina base of a direct-current molded case circuit breaker, and the functions of collecting and uploading electrical parameters such as line voltage, current, power and the on-off state of the circuit breaker are achieved in a ship environment. The accessory adopts a separated design, so that a user can maintain and replace the electric quantity accessory conveniently. In terms of boundary dimension,the size of an electrical parameter monitoring unit and the number of modules in a distribution board are reduced, internal connection circuits are simplified, and miniaturization of the distributionboard is facilitated.