80results about How to "Working Status Monitoring" patented technology

The invention discloses a control and fault diagnosing system of a battery heater. The control and fault diagnosing system comprises a battery temperature detecting circuit, a control circuit, a main power circuit, a fault detecting circuit and a fault detecting enabling circuit. The battery temperature detecting circuit is used for detecting the temperature of a storage battery and converting the temperature into corresponding detecting voltage. The control circuit is used for comparing the detecting voltage with reference voltage and controlling the heater of the main power circuit to turn on or turn off according to the comparison result. The fault detecting circuit is used for detecting the faults of the heater of the main power circuit. The fault detecting enabling circuit is used for controlling the fault detecting circuit to connect according to the on and off conditions of the heater of the main power circuit. The control and fault diagnosing system has the advantages that the temperature of the storage battery can be detected and controlled effectively, the faults of the heater can be diagnosed, the reliability of the heater and the control device of the heater is increased, and the system is low in cost and high in sensitivity.

The invention discloses a hydrogen-oxygen synthesis apparatus and system for a high-temperature oxidation furnace. The apparatus is composed of an ignition furnace, a burning torch, a synthesis chamber and a thermocouple group. A main body of the synthesis chamber is arranged inside the ignition furnace; and an air outlet end of the synthesis chamber extends out of the ignition furnace and is communicated with a quartz tube and an air inlet end of the synthesis chamber extends out of the ignition furnace and the burning torch sleeves the air inlet end. A hydrogen inlet pipe is arranged at an air inlet end of the burning torch; an oxygen inlet pipe is arranged at the air inlet end of the synthesis chamber; and the thermocouple group is installed on the ignition furnace and the burning torch in a split mode. In addition, the provided system consists of a controller, a temperature control module, a gas circuit module, a circuit board, and the hydrogen-oxygen synthesis apparatus for a high-temperature oxidation furnace; the temperature control module, the gas circuit module, and the circuit board are connected with the controller; the temperature control module and the thermocouple group are connected; and the gas circuit module is connected with the hydrogen inlet pipe and the oxygen inlet pipe. The hydrogen-oxygen synthesis apparatus and system have advantages of environment-friendly usage, high safety and reliability, and substantially improved process quality.

The invention discloses an ultrasonic sound intensity detection circuit. The ultrasonic sound intensity detection circuit utilizes a piezoelectric ceramic sensor to convert load vibration into alternating-current signals, the signals among direct-current fluctuating signals, the frequency of which is higher than 20KHZ, are filtered out by a limiter diode network, a precision full-wave rectifier circuit and a second-order low-pass filter circuit, and after subsequent acquisition and processing, a voltage value U is obtained. The direct-current components in the signals are filtered out by a direct current filter circuit. A frequency value F is then obtained by an amplifying circuit and a hysteresis comparator. According to a relation of a sound intensity value, a voltage signal and working frequency F, W =K * F*U<2>, and thereby an ultrasonic wave-driven sound intensity value can be worked out. The ultrasonic sound intensity detection circuit has the characteristics of small size, high reliability, high anti-interference capability and the like, and is convenient to carry and use.

The invention provides a safety type power battery system for an electric automobile. The safety type power battery system comprises an installation box, a power battery pack and an installation box cover, wherein the installation box is provided with a battery installation area and a battery accessory installation area; the power battery pack is fixedly arranged in the battery installation area; the safety type power battery system also comprises a fire extinguisher; the fire extinguisher is arranged on the inner side wall of the installation box; the safety type power battery system further comprises a trigger unit; the trigger unit comprises a sensor module for detecting the fire-fighting state of the power battery pack in the installation box, a vehicle-mounted controller and a fire-righting prompting module; the sensor module is arranged in the installation box and is connected with the vehicle-mounted controller; the vehicle-mounted controller is connected with the fire-righting prompting module and an electric control starting device of the fire extinguisher. The safety type power battery system provided by the invention can be used for effectively monitoring a working state of the power battery pack, and automatically extinguishing in a state of fire behavior or eliminating a power battery in a state that the battery is overheat, so that major safety accidents such as explosion of the power battery are avoided.

The invention discloses a power transformer vibrating separation method and system based on time-frequency ratio distribution. The method comprises: screening a first group of mixed signals and a second group of mixed signals from vibrating mixed signals by using a preset mixed signal screening condition; calculating the time-frequency ratio of the two groups of mixed signals; respectively calculating an optimal amplitude estimated value and an optimal phase estimated value of the time-frequency ratio; constructing a mixed matrix estimated value by using the optimal amplitude estimated value and the optimal phase estimated value, and inversing the mixed matrix estimated value to obtain a corresponding inverse matrix; performing Fourier transform on the vibrating mixed signals, multiplying the corresponding result by the inverse matrix to obtain a Fourier transform result of winding vibrating source signals and core vibrating source signals, and performing inverse Fourier transform on the result to correspondingly obtain time-frequency signals of winding vibration and core vibration. The method and the system fulfill the aim of separating winding vibrating signals and core vibrating signals from surface vibrating signals of an oil tank.

The invention relates to a novel, remote operation and high reliability independent uninterrupted power supply device, which is mainly used for maintenance and repair of power supply storage batteries in field automatic weather stations, hydrologic stations, environmental monitoring stations and communication base stations, etc. The power supply device consists of two parts of a field terminal and a remote monitoring main frame, wherein, the field terminal consists of a solar energy or wind electric power generation device, storage batteries and a charging / discharging controller; the charging / discharging controller is provided with a processor, a memory and a communication interface; battery plates and the storage batteries of the solar energy electric power generation device are assembled in pairs; a photoelectric cell of the solar energy electric power generation device or a DC output end of the wind electric power generation device is connected with a power intake of the charging / discharging controller, a charging interface of which is connected with the storage batteries and the communication interface of which is connected with the remote monitoring main frame by a wired or wireless chain circuit. The novel, remote operation and high reliability independent uninterrupted power supply device has the advantages of being capable of monitoring working conditions of the field storage batteries in the remote end and making intervention and operation of the charging and the discharging, along with high reliability.

The invention discloses an engine rotating speed control device of a rotary drilling rig. The engine rotating speed control device is provided with an automatic / manual button and a parking button and is connected with an A / D (analog / digital) converter and a servo system, the A / D converter is connected with a plurality of sensors, a speed sensor is fixedly mounted on a diesel engine, and an accelerator position sensor and the speed sensor are connected with the A / D converter. A working unit of the engine rotating speed control device is capable of controlling the rotating speed of the diesel engine by means of controlling an accelerator motor via a program.

The invention discloses an off-grid complementary green smart illumination system, which utilizes sunlight instead of relying on mains supply. During daytime, illumination primarily depends on a sunlight collection and optic fiber introduction illumination sub-system, and when there is insufficient sunlight or it is a rainy day or at night, illumination is supplemented by a photovoltaic off-grid illumination sub-system. The process of supplementary lighting is fully and automatically realized by an automatic light measuring adjustment sub-system so as to achieve a constant indoor illumination. At the same time, an integrated control sub-system monitors the performance parameters of each sub-system at appropriate time in order to provide basis for decision makers to make in-time and accurate decisions. The illumination system herein mainly includes a sunlight collection and optical fiber illumination sub-system 1, a photovoltaic off-grid illumination sub-system 2, an automatic light measuring adjustment sub-system 3, and an integrated control sub-system 4. When there is sufficient sun light intensity outdoor, illumination is provided independently by the sub-system 1, and meanwhile the sub-system 2 implements the function of energy storage. And when there is insufficient sunlight intensity, supplementary lighting is delivered by the sub-system 2. The collection sunlight photovoltaic state parameter of the sub-system 1, the energy storage state parameter of the sub-system 2 and the light measuring and adjustment light state parameters of the sub-system 3 is real-time on-line monitored by the sub-system 4, thus providing a reliable basis for the decision makers.

The invention relates to an automobile brake friction plate alarm method and a device thereof, which can effectively monitoring the working state of a friction plate and alarm in time. The invention has the technical scheme that the friction plate is provided with a sensor; when the thickness of the friction plate reaches wear limit or the friction plate has overhigh temperature after being drag ground for a long time, the sensor provides a signal for a finished vehicle control circuit which leads an alarm lamp on an instrument panel to be lightened.

The invention discloses a state monitoring device for an optical fiber current sensor. The state monitoring device comprises a first optical fiber coupler, a second optical fiber coupler, a first photoelectric detector, a polarization state analysis module, a spectrum demodulation module and a signal processing unit; the first optical fiber coupler splits received light signals output by the lightsource and sends the split light signals to the second optical fiber coupler and the optical fiber current sensor to be measured; the first optical fiber coupler splits the received returned opticalsignal and sends the split optical signal to a to-be-detected optical fiber current sensor and the first photoelectric detector; the second optical fiber coupler splits received light signals output by the light source and sends the split light signals to the spectrum demodulation module and the polarization state analysis module respectively; and the signal processing unit receives output signalsof the first photoelectric detector, the polarization state analysis module and the spectrum demodulation module, and calculates state parameters of the to-be-detected optical fiber current sensor. According to the invention, various state parameters of the optical fiber current sensor can be extracted, and the reliability of an optical fiber current sensing system is improved.

The invention discloses a stepping motor working state monitoring method and device and an air-conditioning controller. The method comprises the steps of performing signal transformation for a driving signal of a stepping motor to obtain a corresponding signal level; performing signal processing for the signal level to obtain a corresponding square signal; and performing cycle monitor for the driving signal of the stepping motor based on the square signal to determine the operating state of the stepping motor. According to the scheme of the invention, the problems including low reliability, bad accuracy and big maintenance difficulty and the like in the prior art are solved, and the beneficial effects including high reliable, good accuracy and small maintenance difficulty are realized.

The invention discloses a contact monitoring device of a high-voltage direct-current relay. The contact monitoring device comprises the high-voltage direct-current relay, a working circuit and a contact detection mechanism; the contact detection mechanism is arranged below the high-voltage direct-current relay; one end of the bottom of the high-voltage direct-current relay is connected with the working circuit; the high-voltage direct-current relay comprises a shell, a coil, an iron core, an elastic element, a movable contact platform, a circuit board and two load terminals; and the contact detection mechanism comprises a signal circuit and a conductive spring piece. A push rod is driven by lifting the iron core to push the conductive spring piece to rise, so that the iron core drives theconductive spring piece to be in contact with a connecting terminal while moving, and then the signal circuit is turned on; and a working state of the device is monitored through an indicating lamp state of the signal circuit, and whether the two load terminals are truly closed or not is known in real time, so that the time for overhauling and fault checking after power failure of the high-voltagedirect-current relay is shortened, and the labor maintenance cost is effectively reduced.

The invention relates to the technical field of automobile shock absorbers, in particular to an automobile shock absorber with a monitoring function. The automobile shock absorber comprises a support column, a damping spring and a damper; the two ends of the damper are respectively provided with a first fixed block and a second fixed block through screws; the surface of the second fixed block is provided with a plurality of through holes; and weighing sensors are adhered to the interiors of the plurality of through holes. According to the automobile shock absorber with the monitoring function provided by the invention, a tension sensor and the weighing sensors are arranged, the tension sensor is used for sensing the tension of the damping spring in a length compression state, the weighing sensors are used for sensing the pressure generated by the damping spring in an extension state and detecting whether the damping spring is in a fracture state, the tension sensor and the weighing sensors feed back monitored information to a PLC, and the PLC controls a flashing lamp to flash and is used for prompting a driver to stop in time, so that the personal safety of the driver is protected.

The invention discloses an intelligent kitchen waste comprehensive treatment device which comprises a machine box, a smashing device, a solid-liquid separation device, an oil-water separation device, a deodorization device and a centralized control module, an oil liquid collecting barrel is arranged in the machine box, the smashing device, the solid-liquid separation device and the oil-water separation device are sequentially arranged in the machine box from top to bottom, the deodorization device is arranged in the machine box, and the centralized control module is arranged in the machine box. The centralized control module is embedded in the outer side face of the rack, and the smashing device, the solid-liquid separation device, the oil-water separation device and the deodorization device are electrically connected with the centralized control module. The equipment has the beneficial effects that the equipment is more compact and small in occupied area, the centralized control module enables the equipment to be more intelligent and controllable, the oil quantity separated by the equipment can be recorded in real time, the working state of each device can be monitored, liquid level heating is adopted to reduce the power consumption of the equipment, the equipment is suitable for a low-temperature use environment, and the deodorization device enables the equipment to have smaller influence on the environment when the equipment works.

The invention discloses an automatic heating and ventilation system. The system involves a sensor group, a sensor working condition access module, a data fusion module, a data feature extraction module, an indoor environment analysis module and a scheduling decision-making module, wherein the sensor group is adhered to an indoor wall through pressure-sensitive adhesive; the data fusion module is used for carrying out data fusion on a cluster head of a controller by adopting a fuzzy nearness degree algorithm; the data feature extraction module is sued for extracting feature data by adopting a MapReduce; the indoor environment analysis module is used for evaluating the current indoor environment condition based on the feature data by a support vector machine with a network format searching method; the scheduling decision module is used for collecting current weather parameters on a weather forecast base station through a network crawler module, and then adopting a PCA-BP neural network model to realize scheduling decision-making of the current heating and ventilation system based on the analysis result of the weather parameters and the indoor environment analysis module. According tothe system, the indoor environment parameters and personnel conditions can be automatically detected, so that the operation power of an air conditioner can be adjusted based on the PCA / BP neural network according to different conditions, and the automation degree is high.

The invention discloses a CNC predictive maintenance system and method based on machine learning, and the system comprises a CNC state monitoring system which is used for collecting and monitoring theoperation state data of a numerical control machine tool and the production process data of a workpiece, and transmitting the information data to a CNC service cloud platform through a data transmission network; a data transmission network which is used for sending the acquired data to the CNC service cloud platform through wireless communication modes such as WiFi, ZigBee and GPRS; a CNC servicecloud platform which is used for storing, modeling and analyzing the acquired data; and a mobile terminal which is used for displaying the acquired data and the analysis result on the smart phone andthe tablet personal computer. The invention further discloses a CNC predictive maintenance method based on machine learning. The CNC predictive maintenance method comprises the following steps of S1,CNC data collecting and transmitting; S2, data storage; S3, data analysis and processing; and S4, data pushing. According to the method, predictive maintenance of the CNC equipment is facilitated, the detection accuracy is improved, and accidents are avoided.

The invention relates to the field of hydraulic systems, in particular to hydraulic oil tank filter element detection method and device and a hydraulic system. The hydraulic oil tank filter element detection method is used for detecting working states of a plurality of filter elements, and the plurality of filter elements are simultaneously connected with a hydraulic oil tank, and the method comprises the following steps of, acquiring a first signal characterizing the pressure value in the hydraulic oil tank and acquiring a second signal characterizing the pressure values of the plurality of filter elements; calculating the pressure difference value of each filter element, wherein the pressure difference value is the absolute value of the pressure value of each filter element and the pressure value of the hydraulic oil tank; comparing the service life pressure difference graph of each pressure difference value and the corresponding filter element, and obtaining service life signal of each filter element; and outputting signal which characterizes the working state of each filter element. The hydraulic oil tank filter element detection method can monitor use state of each filter element in real time.

The embodiment of the invention relates to a user working state monitoring method and device, computer equipment and a storage medium. The method comprises the steps that whether a target user reachesa first position or not is detected; if it is determined that the target user arrives at the first position, a first picture is received, and the moving steps of the target user are counted, whereinthe first picture is an image of media equipment corresponding to the first position; a second picture is received, and the step counting number of the target user is determined, wherein the second picture is an image of the media equipment corresponding to a second position; if it is determined that the step counting number is larger than or equal to a set threshold, it is determined that the working state of the target user is normal; and if it is determined that the step counting number is smaller than the set threshold, it is determined that the working state of the target user is abnormal. By means of the method, whether the working state of the user is abnormal or not can be monitored more conveniently and accurately.

The invention relates to a coke oven escaping smoke dust distributed dust removal system and a working method thereof, the system comprises a plurality of dust removal adsorption filtering units and aplurality of dust removal units which are arranged on a coke oven smoke dust collection cover, and the plurality of dust removal adsorption filtering units are correspondingly connected with one dustremoval unit; the dust removal adsorption filtering unit comprises a filter body, and a filtering fan and an adsorption filtering device which are arranged in the filter body; the dust removal unit comprises a dust remover body, a dust removal fan and a dust removal device, wherein the dust removal fan and the dust removal device are arranged in the dust remover body. The air filtering device isused for filtering air in the coke oven smoke dust collecting cover and exhausting clean air reaching the standard into the atmosphere, so that the air pollution degree of a coke oven working area isreduced; the system is good in dust removal effect, low in operation cost, small in occupied area and easy and convenient to construct and maintain.

The invention discloses an LED lighting control system for a workshop. The LED lighting control system comprises a PC, an industrial PC and a terminal controller, wherein the industrial PC is in information communication with the PC or a smart phone through Internet, WiFi or GPRS; the input end of the industrial PC is respectively connected with an information collecting module, a clock module, an alarm module, a data storage module and a switch module; the industrial PC is connected with the terminal controller through a wireless RS232 / 485 signal converter, a voltage-limiting and current-limiting protecting circuit is disposed inside the terminal controller, and a power supply is connected with an LED lamp group through the voltage-limiting and current-limiting protecting circuit; the output end of the industrial PC is connected with a high-resolution LCD display panel through an LCD display drive module, and the input end of the industrial PC is connected with a touch panel through a touch panel interface. The LED lighting control system has the advantages that centralized control and management of LED lighting for the workshop are achieved by using the computer technology and the control technology, and the LED lighting control system is low in power consumption, good in energy conservation effect and long in service life.

The invention relates to the field of power takeoff equipment, and specifically relates to a power takeoff system and a power takeoff system monitoring method. The power takeoff system comprises a power takeoff, a power takeoff pump and a speed measuring structure, the power takeoff is in transmission connection with the power takeoff pump, the speed measuring structure is arranged at the power input end, used for being in transmission connection with the power takeoff, of the power takeoff pump, and the speed measuring structure is used for detecting the rotating speed of the power input end.According to the power takeoff system, the working state of the power takeoff pump can be monitored by monitoring the rotating speed of the power takeoff pump so that unnecessary loss caused by the working anomaly of the power takeoff system can be avoided.

The invention provides a slave control module, a battery management system and a battery management method. The slave control module comprises a power supply circuit, a single chip microcomputer circuit, a communication circuit, a voltage acquisition circuit and a temperature acquisition circuit, wherein the single chip microcomputer circuit is respectively connected with the communication circuit, the voltage acquisition circuit and the temperature acquisition circuit; the power supply circuit is used for supplying power; the voltage acquisition circuit is connected with power batteries of apower battery pack through a voltage sensor and transmits the acquired voltage data to the single chip microcomputer circuit; the voltage acquisition circuit comprises 50 voltage monitoring points; the temperature acquisition circuit acquires the temperature of the power batteries through a temperature sensor and transmits the temperature data to the single chip microcomputer circuit; and the single chip microcomputer circuit transmits the voltage data and the temperature data to a main module through the communication circuit. By arranging the voltage monitoring points and the temperature monitoring points, the working states of all single batteries connected in series in the battery pack are monitored, thereby improving the working stability of the battery pack.

The invention discloses a dehumidification storage cabinet based on Internet of Things. The cabinet comprises a cabinet body, a plurality of independent boxes distributed in a matrix mode are arrangedin the cabinet body. The front side face of each independent box is provided with a box door rotationally connected with the independent box, each box door is provided with an electronic lock, a control panel is arranged in the middle of the cabinet body, the front side face of each control panel is provided with an operation keyboard, a displayer and a recognizer, each electronic lock is connected with the corresponding control panel, and a camera is arranged at the top in each independent box. The cabinet comprises a control panel and an Internet of Things control box. Dual safety control is carried out from a long distance and a short distance; the security of article storage is secured, based on a technology of Internet of Things, the cabinet is simple in structure and convenient to use, the risk of article storage can be greatly reduced, the overall working state of the device can be monitored, when the hygrometer senses that the humidity in the cabinet body is high, a first fanand a second fan are started, air in the cabinet body is led out, dried by the dehumidification pipe and then fed into the cabinet body, articles are prevented from being damped and damaged, and storage safety is guaranteed.

The invention pertains to the technical field of aviation machinery. The display device turn-over type structure comprises a front frame unit (1), a middle frame unit (2), a first rotating arm unit (3), a rear cover plate unit (4), a first flexible printed circuit (5), a second rotating arm unit (6) and a second flexible printed circuit (7). The front frame unit (1) is in structural connection with the middle frame unit (2) through the first rotating arm unit (3) and set screws. The front frame unit (1) is electrically connected with the middle frame unit (2) through the first flexible printed circuit (5). The middle frame unit (2) is in structural connection with the rear cover plate unit (4) through the second rotating arm unit (6) and set screws. The middle frame unit (2) is electrically connected with the rear cover plate unit (4) through the second flexible printed circuit (7). Through the structure, a debugging worker can monitor the working state of each printed circuit board in the overall machine working condition.

The invention discloses a remote test device, system and method, and the system comprises a server side which is configured to collect and store sensor data. The method comprises the following steps of receiving a request sent by a mobile terminal, responding to the request, sending the stored sensor data to the mobile terminal for displaying, recording the working state of data acquisition and request response, carrying out hierarchical management on the recording result, creating each application sub-process, and monitoring the state of each application sub-process to realize process daemon;and the mobile terminal which is configured to send a request for checking the sensor data to the server side, receive the sensor data returned by the server side and display the sensor data.

The invention provides an optical fiber transmission type passive pressure sensor based on a gradient refractive index lens. The problems that an existing pressure measuring device is complex in structure, large in overall size and low in measuring precision are mainly solved. The pressure sensor comprises a displacement sensing module, a C-shaped spring tube, a rotating module, a light source, an optical fiber circulator, a photoelectric conversion module and a data processing module, the displacement sensing module comprises a base, a reflecting mirror seat, a guide rail, a sliding block, a plane reflecting mirror, a lens mounting seat, a micro lens and an optical fiber; the rotating module is used for converting the deformation amount of the C-shaped bourdon tube into the displacement amount of the plane mirror on the guide rail; a light beam emitted by the light source enters the micro lens through the optical fiber circulator and the optical fiber, is transmitted to the plane mirror after passing through the micro lens and enters the optical fiber circulator again through the micro lens after being reflected by the plane mirror, and the optical fiber circulator transmits the reflected light beam to the photoelectric conversion module. The data processing module converts the optical power into a corresponding distance.

The invention provides a safety protection control device of a cable head. Through comprehensively judging working current, working temperature and arc light conditions of the cable head, the safety protection control device can be effectively used for monitoring the working state of the cable head and immediately stopping supplying power to the cable head under the condition of fault risks, so that safety protection is performed on the cable head, the service life of the cable head is prolonged, the damage rate of the cable head is decreased, and the cable head is prevented from exploding.