35results about How to "With fault detection function" patented technology

The invention discloses a control system for measuring the energy consumption of urban rail transit and an evaluation method. The control system comprises a vehicle-mounted energy consumption control unit, a data management unit and a ground energy consumption control unit. The control system has the beneficial effects that the system is a multi-path sampling energyconsumption metering system; drive control is carried out by adopting a permanent-magnet synchronous DC motor; a double-energy control module is built by using a super capacitor and a lithium battery for vehicle-mounted energy conversion control; train force analysis and modeling are not needed; a large quantity of nonlinear analysis or intelligent optimization calculation is not needed; traction energy consumption, regenerative braking energy and auxiliary energy consumption can be measured and monitored by directly utilizing collected voltage and current data; the control system has the functions of real-time storage and display of energy consumption data; the energy consumption data can be uploaded to the ground energy consumption control unit through the data management unit; the labor cost is reduced; the control system has a fault detection function; and the fault can be accurately reported when the system fails.

The invention provided an energy storage device with failure detection and automatic reconstruction function and a reconstructing method. The energy storage device with failure detection and automatic reconstruction function comprises m*n modular energy storage units with same structures, a standby energy storage unit, a first output bus, a second output bus, a first reconstruction bus, a second reconstruction bus, a central processing unit, a man-machine conversation device, a data bus and a control bus. Aiming at energy storage devices formed by the serial connection and parallel connection of a plurality of energy storage elements, such as a storage battery pack, a super capacitor pack and the like, the adverse effects brought by singled damaged energy storage element on the whole device is eliminated, and the operation reliability of the energy storage device can be improved.

The invention provides an intelligent control system for pig house environment, which belongs to the technical field of pig farm breeding equipment, including STM32 single-chip microcomputer, operation panel, sensor, input module, output module, frequency converter, variable frequency fan contactor, variable speed fan, wet curtain contact device, cooling pad, constant speed fan contactor and constant speed fan. The temperature, humidity and ammonia control parameters of the pig house environment automation control system of the present invention can be adjusted by themselves, and different houses can adjust the control range of temperature, humidity and ammonia according to the needs, so as to give pigs a suitable growth environment, Guarantee the health and growth speed of pigs, and increase the economic benefits of the farm; the system of the present invention adopts highly intelligent and humanized design, fully automatic operation control according to the set parameters, no need for on-site personnel, 24-hour all-weather operation, one-time input, benefit for ten years.

A centralized monitoring and managing system of power or environment comprises display window with LCD; structure of input keyboard; modularized electronic circuit board being set in structure and being set with bus module, communication module, protocol conversion module, LCD display module, storage module, multipath I / O module and power supply module. It is featured as integrating communication, protocol conversion, I / O collection, bus convergence and liquid crystal display in a unified body for saving energy and resource.

The invention belongs to the technical field of electronics and relates to an LED (light emitting diode) street lamp driving circuit with functions of fault detection and intelligent output current adjustment. According to the invention, the driving circuit comprises an input surge protection and electromagnetic interference suppression circuit, a single tube flyback switching power circuit with a power factor correction function, an LED fault detection circuit, a microcomputer control circuit which can intelligently adjust an output current according to the detection result and an overvoltage protection circuit. The circuit has the security of the partition type LED driving circuit and simultaneously has the power factor correction function, an automatic output circuit adjustment function and an overvoltage protection function. According to the invention, a large quantity of peripheral circuits can be saved, and the driving circuit provided by the invention has the advantages of high power factor, high efficiency, low cost and suitability for batch production; and meanwhile, the circuit also has an LED fault detection function and can automatically adjust the output circuit when an LED goes wrong, so that the LED street lamp without roadblocks can be ensured to operate normally under a safe condition and the service life of the LED street lamp can be effectively prolonged.

The invention belongs to the technical field of electrically operated valve control, and especially relates to a valve opening degree control device and a valve opening degree adjustment method. The device comprises a processor module, a detection module, a control output module, a memory module and a power module, wherein the detection module, the control output module, the memory module and thepower module are respectively connected with the processor module. The detection module comprises a system power detection circuit and a valve switching output detection circuit. The system power detection circuit comprises a power supply detection circuit for first output, a two power supply detection circuit for second output and a DC-AC conversion module output power detection circuit. The device provided by the invention is simple in structure, is novel in design, is scientific and reasonable, is low in cost, is simple in maintenance, and has a fault detection function. The invention alsoprovides a valve opening degree adjustment method, and the method can accurately achieves the proportion adjustment, and is safe and reliable in use.

The invention belongs to the technical field of electric valve control, and particularly relates to an electric valve proportional control device and a control method. The control device comprises a processor module, a detection module, a control output module, a communication module, a storage module and a power supply module, wherein the detection module, the control output module, the communication module, the storage module and the power supply module are respectively connected with the processor module. The control output module comprises an electric valve switch circuit. The detection module comprises a control output power supply detection circuit and a valve current detection circuit. The communication module comprises a wireless communication circuit and a wired communication circuit. The electric valve proportional control device is simple in structure, novel in design, scientific, reasonable, low in cost and easy to maintain. Meanwhile, the electric valve proportional control device has the fault detection function. The invention further provides an electric valve proportional control method. The method can accurately realize the proportional adjustment, and is safe andreliable to use.

The invention relates to a centralized control illuminating lamp employing centralized power supply. The centralized control illuminating lamp comprises a two-bus communication module, a drive module, a control module and a fault detection module. The illuminating lamp can achieve two-bus constant-current supply, does not need to be provided with the power supply, and has a self-checking function; the conditions of open and short circuits in a circuit can be monitored in real time; the detection result is uploaded to a monitoring equipment terminal through the two-bus communication module; and monitoring and overhauling work can be finished only by a little manpower. The centralized control illuminating lamp has the advantages that a power supply circuit is simplified; the overhaul efficiency is improved; and the human cost is reduced.

The invention discloses an energy-saving control method of a central air conditioner. The energy-saving control method comprises the specific steps that a system is initialized, a sensor module collects working condition parameter data of the switched-on air conditioner system, and the collected working condition parameter data is transmitted to a data collecting module; the data collecting module converts analog signals in the working condition parameter data into digital signals, and sends the working condition parameter data converted into the digital signals to a data processing module; the maximum system total power and the current system total power are compared; an equipment control module judges whether a refrigerating water pump or a cooling water pump needs to be additionally switched on or switched off or not for the central air conditioner system under the working condition; the system continues to be detected and analyzed. The energy-saving control method is easy and convenient to implement and low in cost, the use time of motors is reasonably distributed, abrasion to the motors is relieved, the average service life of the motors is prolonged, the function of fault detection is achieved, losses caused by faults are reduced, and maintenance of workers is facilitated.

The invention provides a vehicle and a vacuum pump control method and device thereof. According to the vacuum pump control method, M vacuum pump control loops are arranged; when at least one vacuum pump control loop does not fail, whether a vacuum pump pressure sensor fails or not is detected, the current driving state of the vehicle and the current vacuum degree of a vacuum pump are further obtained under the condition that the vacuum pump pressure sensor does not fail; the start-stop of the vacuum pump is controlled according to the current driving state of the vehicle and the current vacuumdegree of the vacuum pump; air leakage detection is performed on the vacuum pump at the same time; and corresponding message information is output according to the detection result, so that control is performed according to the driving state of the vehicle in the vacuum pump control process. In addition, a fault detection function is achieved, the safety in the vehicle driving process is greatlyimproved, and the problem that potential safety hazards are increased in the vehicle driving process due to the fact that an existing vacuum pump control method is not perfect enough is solved.

The invention relates to a timing controller for controlling the switching work of two pieces of machine equipment, which belongs to the technical field of controllers. The controller is characterizedin that a singlechip MCU is used for logic control and is connected with a NO.1 machine signal driving unit, a failure signal unit, a NO.2 machine failure signal unit, a NO.1 machine time setting unit and a NO.2 machine time setting unit and the output end of the singlechip MCU is connected with an executing unit. The invention performs the logic control by adopting the singlechip MCU so as to realize programming control, can set the running time and the working sequence of the two pieces of machine equipment and has failure detecting function, can realize that the two machines can automatically work alternately according to the time set by a user with high control stability degree, and can be used in the condition of needing the two pieces of equipment to be switched by timing; and control logic can be modified according to a specific application with stronger practicability and universality.

The invention provides a solar street lamp system for a highway. The solar street lamp system for the highway comprises a remote street lamp control subsystem and a solar thermal power station and compressed air energy storage unit combined operation device. At night, when no pedestrian or vehicle passes, street lamps slightly light, and when approaching of an object is detected, the street lampsare fully lighted; in the morning or evening, the street lamps are automatically switched on and off according to the brightness change of ambient light. The solar energy and compressed air energy storage combined operation device achieves steady output of power of a solar thermal power station. The technical problems that in the prior art, a power generating system of the solar street lamp systemfor the highway is unsteady in operation and power is seriously wasted are solved; intelligent control of the solar street lamp system for the highway and the technical effect of steady operation ofthe power generating system are achieved.

The invention discloses a linear control system for a vehicle light assembly that combines taillight functions, including a left turn light circuit, Right Turn Lamp Circuit, Position Lamp Circuit andBrake Lamp Circuit: the right turn signal lamp circuit outputs a constant current to drive the LED to emit light through the first driving chip U1, The left turn lamp circuit outputs a constant current to drive the LED to emit light through the second driving chip U2, the brake lamp circuit outputs a constant current to drive the LED to emit light through the third driving chip U3, and the position lamp circuit outputs a constant current to drive the LED to emit light through the fourth driving chip U4. The left / right turn signal lamp, position lamp and brake lamp of the vehicle lamp are controlled to emit light by the driving chip, so as to meet the high light output of the night running lamp of the daytime running lamp; Simultaneously has the fault detection function, when the position lamp single malfunction, the entire position lamp normal work, satisfies the position lamp output effect, but when the turn signal lamp / position lamp single LED malfunction, the entire turn signal lamp / position lamp does not output.

An electronic part is equipped with a vibration element, a drive circuit which supplies drive signals to the vibration element, a frequency generation unit, a clock frequency generation unit which outputs clock signals to the drive unit, a clock frequency control unit which controls clock signal frequencies, a consumption current measuring unit which detects the consumption current in the drive unit, and a fault detection unit which is electrically connected to the consumption current measuring unit and to the clock frequency control unit. Changes occur in the consumption current which is detected when the clock frequency control unit changes clock signal frequencies, with the result that the consumption current measuring unit detects the changes in the consumption current detected. The fault detection unit detects faults from changes in clock signal frequencies and from changes in the consumption current. This electronic part has a fault detection function and can be miniaturized.

The application belongs to the technical field of voltage detection, and provides a detection circuit for detecting a parameter of a voltage division circuit. The detection circuit comprises the voltage division circuit coupled with a first signal source with a first frequency; the voltage division circuit comprises a first voltage divider, a second voltage divider and a third voltage divider which are connected in series; the second voltage divider is connected in parallel with a voltage measurement module; the detection circuit further comprises a second signal source and a direct current signal source; the direct current signal source is used for providing a direct current bias for the voltage measurement module; a buffer for configuring an input impedance, common mode rejection and linearity is arranged at the input end of the voltage measurement module; the voltage measurement module is used for detecting a first signal component of a second frequency on the second voltage dividerand determining whether a circuit parameter of the voltage division circuit is abnormal according to the first signal component.

The invention provides a solar street lamp system. The solar street lamp system comprises a street lamp remote control subsystem and a solar thermal power plant and compressed air energy storage unitlinkage running device. When no pedestrian or vehicle passes at night, a street lamp gleams, and when it is detected that an object approaches, the street lamp is fully bright; and in the morning or at nightfall, the street lamp achieves automatic switch according to the brightness changes of the ambient light. By means of the solar and compressed air energy storage linkage running device, the stable output of electric power of a solar thermal power plant is achieved. The technical problems that a power generation system of a solar street lamp system in the prior art is instable in running, the electric energy is wasted seriously, a street lamp holder is prone to being damaged by typhoon are solved. The technical effects that the solar street lamp is intelligently controlled, the power generation system runs stably, and the lamp holder structure is stable and reliable are achieved.

The invention discloses an automatic control type onboard toilet. The automatic control type onboard toilet comprises a clear water tank, a wastewater tank, a wastewater controller, a closestool, a booster pump, a vacuum pump, a vacuum one-way valve, a water-gas separator and the like, wherein a liquid level sensor I, a pressure sensor I valve and the like are mounted on the clear water tank, the clear water tank is connected with a faucet and the closestool through a clear water pipeline, the closestool is connected with the wastewater tank through a wastewater discharging pipeline, the water-gas separator, a liquid level sensor II, a flushing port and the like are mounted on the wastewater tank, the water-gas separator is connected with the vacuum one-way valve and the vacuum pump through a vacuum pumping pipeline, and the wastewater controller automatically controls the booster pump, the vacuum pump, the closestool, the vacuum one-way valve and the like through a wire and an electric connector. The automatic control type onboard toilet has the advantages of being clean, efficient and capable of achieving full-automatic control.

The invention discloses a large-inclined-angle coal cutter dragging control device and control method. The large-inclined-angle coal cutter dragging control device comprises a walking mechanism, a traction mechanism and an electrical control mechanism. The electrical control mechanism comprises a controller, a main frequency changer, a first auxiliary frequency changer and a second auxiliary frequency changer, wherein the first auxiliary frequency changer and the second auxiliary frequency changer are in communication with the main frequency changer. The invention simultaneously discloses a large-inclined-angle coal cutter dragging control method. The method comprises the following steps that 1, walking of a coal cutter is controlled; 2, it is detected that whether traction motors overload or underload; and 3, it is detected that whether the frequency changers fail or not. According to the large-inclined-angle coal cutter dragging control device and control method, the three frequency changers adopt the control way of one main and two auxiliaries, the traction mechanism overload or underload detecting function is achieved, the frequency changer failure detecting function is achieved, on the basis of maintaining the first traction motor, the second traction motor and the third traction motor be at synchronous operation, the traction motors are prevented from overloading or underloading, any one of the frequency changers fails, the coal cutter stops working, failure expansion is avoided, and damages of equipment of the coal cutter are reduced.

The invention relates to an intelligent light regulating touch-control-free LED operating shadowless lamp circuit control system comprising a power supply input device and a power supply processing device which is used for processing the power supply input device. The power supply processing device is connected with a microprocessing device and an electrification indicating device. A channel selection device, an operation indicating device, a fault detection device, a working state display screen and a noncontact key detection device are connected on the microprocessing device. The channel selection device is connected with an LED driving device which is connected with the power supply processing device. The intelligent light regulating touch-control-free LED operating shadowless lamp circuit control system has the advantages of being simple in structure, practical in function, high in anti-interference capacity, stable in performance, low-carbon and environment-friendly and intelligent in design.

The invention relates to the technical field of electronics and power supplies and particularly relates to a primary-secondary fusion-based fault isolation intelligent measurement and control device.The device comprises a circuit breaker, wherein the circuit breaker is installed on a base, an indication plate is installed on one side of the base, a pointer connected with the interior of the baseis installed outside the indication plate, installation bases are symmetrically arranged at the bottom of the base, a connector lug is arranged on one side of the front portion of the base, an electric wire is installed in the connector lug, and the circuit breaker body is externally connected with a collector through the electric wire. The device is advantaged in that the main purpose of the invention is to provide a method based on primary and secondary fusion type fault isolation and integrating the real-time information of a power distribution network and power grid structure parameters. The intelligent measurement and control device integrates a fault detection function, a protection control function and a modern communication function so as to solve problems that in the high-voltagepower transmission process, once a fault occurs, residential electricity consumption of a region is influenced, and troubleshooting consumes manpower and material resources.

The invention relates to a trigger circuit of a water-cooling radiating light-control thyristor valve group of a voltage class more than 66 kV, which triggers a light-control thyristor by adopting a laser trigger signal. The trigger circuit comprises a photoelectric isolation circuit, a pulse circuit 1, a pulse circuit 2, a combiner circuit and a drive circuit, wherein a trigger pulse input signal passes through the photoelectric isolation circuit so that a light signal is converted into an electric signal and is isolated and amplified and also passes through the pulse circuit 1 and the pulsecircuit 2 so that two pulse signals with different fixed widths and different amplitude values are output; and the signals are rectified and then delivered to the combiner circuit so as to form a strong trigger signal and then trigger the light-control thyristor through trigger fibers. The trigger circuit can meet the requirements of a high voltage class, and has good stability, high interferenceresistance and reliability and long service life.