172results about How to "With self-test function" patented technology

The invention mainly relates to an electronic device used for intelligently controlling and monitoring a track traffic interlocking control point switch, in particular to a system for controlling and monitoring the position of railway points. The invention is characterized in that the electronic device comprises a control mechanism (1), an electrical signal between an execution mechanism (2) and a point switch (5), and a monitoring mechanism (3) for the self-detection of the device; the control mechanism (1) and the monitoring mechanism (3) are connected with an external computer by a communication fieldbus; the execution mechanism (2) is connected with the control mechanism (1) and the point switch (5); the monitoring mechanism (3) is connected with the execution mechanism (2) and the control mechanism (1); the monitoring mechanism (3) is connected with the external computer by a data communication fieldbus. In the invention, the electronic device is adopted for replacing the existing relay contact circuit; an interlocking control device for railway signal is realized by the integration of controlling, monitoring and supervising, therefore, the invention has the advantages of self-detection function, fault position, and stable and reliable work.

The invention discloses a detecting device of control time sequence of a non-contact initiating explosive device and a method thereof, relating to an automatic detecting device and a method for the energization time sequence of a control system of the initiating explosive device. The detecting device mainly comprises a signal collecting unit, a central processing unit, a data storage unit, a man-machine interactive unit and an automatic detecting unit. The method utilizes the device and the image processing and pattern recognition technology to conduct automatic detection by programs. The invention has the characteristics of capability for detecting various types of equivalent machines and various time sequence status, good commonality, high testing efficiency and reliability, high accuracy and reliability of testing results, and the like. The invention can be widely applied to industries which have demands on the accurate control of detonation of initiating explosive device, such as spaceflight, aviation, engineering, building, manufacturing, medical treatment and the like, and can ensure the reliable and safe application of the initiating explosive device.

The invention discloses an intelligent auxiliary monitoring system and method for a substation. The system comprises an adaptive communication module, an intelligent electronic device (IED) model automatic configuration module, a version automatic matching module and an XML based interface configuration module. The adaptive communication module is used for achieving adaptive communication between a comprehensive monitoring host and various sub-monitoring systems. The IED model automatic configuration module is used for generating IED performance description files rapidly after the system configuration is changed. The version automatic matching module is used for achieving automatic matching of an integrated power supply system and the comprehensive monitoring host software version. The XML based interface configuration module is used for enabling XML files to perform description modeling on the whole character lattice LCD human-computer interface to generate an interface according to the model files. By the aid of the system and the method, high multi-system fusion is performed on technologies of IED model automatic configuration, version automatic matching, adaptive communication, interface configuration and the like, and a uniform novel intelligent auxiliary monitoring system platform which is intelligent and efficient and adaptive to substation development requirements is built.

An all-digital intelligent temperature and humidity control dehumidification system is arranged in a housing of a cabinet of an electrical device and comprises a heater, a dehumidifier, a controller which is connected with and control the heater and the dehumidifier, and a temperature and humidity sensor communicated with the controller. According to the all-digital intelligent temperature and humidity control dehumidification system, the temperature and humidity sensor is used for continuously measuring the change of relative humidity and temperature in the cabinet, the controller is used for automatically controlling the start and stop of the dehumidifier and the heater, and the heater is started for working in matching when the temperature is low, so that the system can work at a wide temperature range stably, the air humidity in the cabinet can be ensured to be maintained at a reasonable range, the humidity in the cabinet of the electrical device can be effectively reduced, the condensation in the cabinet of the electrical device can be effectively eliminated, all kinds of accidents caused by damp can be prevented, and the energy efficiency is obtained; meanwhile, the dehumidifier serves as the core, the heater and the ventilation design are used for auxiliary dehumidification, and self-test and protection functions are arranged, so that the safety of the operation of the device can be effectively improved.

The invention provides a primary equipment intelligent interface device in a substation. The device comprises a driving-in module, a state collecting module, a communication module, a driving-out module, a man-machine interface module, and a data and logic processing module which are connected through a bus. According to the primary equipment intelligent interface device in the substation, logic operation is used for replacing a traditional electromagnetic relay circuit, so that the state of primary equipment of the substation can be detected. The device has a self-detection function and a communication function, can effectively overcome the defects that the number of failures of a traditional relay circuit is large, and the failures in operation can not be detected, can detect the state of a switch and other primary equipment in real time, simplifies a circuit, simplifies installation, improves efficiency of operation on the primary equipment, and improves the reliability of operation of the primary equipment.

The invention provides a testing system and a testing method for an electronic brake control unit. The testing system is externally connected with an upper computer which can be used for monitoring operation of the testing system, and comprises a power supply module which is used for providing electric energy to the testing system, and an interface testing module, a control testing module and a communication testing module which are electrically connected with the power supply module, wherein the interface testing module is arranged corresponding to an interface module of an electronic brake control unit; the control testing module is arranged corresponding to a control module of the electronic brake control unit; the communication testing module is arranged corresponding to a communication module of the electronic brake control unit; and the interface testing module, the control testing module and the communication testing module are connected through CAN bus. The testing system can realize overall port coverage, and the testing method is simple and convenient to operate and quick and complete in testing.

The invention belongs to the technical field of shaft pin manufacture, relates to shaft pin manufacture equipment, in particular to a chain pin shaft machine which solves the technical problems that the prior art is not reasonable enough, and the like. A drive shaft horizontally arranged and capable of rotating in the circumferential direction is arranged on a working platform; a first driving assembly and a second driving assembly distributed in the axial direction of the drive shaft are arranged on the drive shaft; the first driving assembly is connected with a truncating mechanism and can drive the truncating mechanism to operate; the second driving assembly is connected with a feeding mechanism and can drive the feeding mechanism to operate; when the drive shaft rotates, the feeding mechanism and the truncating mechanism can operate alternately; the truncating mechanism is positioned on one side of the feeding mechanism, and can receive stripe materials input by the feeding mechanism and truncate the stripe materials into pin shafts. Compared with the prior art, the pin shaft machine has the advantages as fellows: 1, the design is reasonable, the structure is simple, and the working efficiency is high; 2, the automation degree is high, and the labor intensity of workers is reduced.

The invention relates to a method for monitoring leakage of a bottom plate of an oil storage tank, which comprises the following steps: arranging a leakage warning and detecting device of the bottom plate of the oil storage tank below the bottom plate of the oil storage tank; powering the leakage warning and detecting device of the bottom plate of the oil storage tank and carrying out initialization operation; according to the electric field induction principle, acquiring voltage data by using electric field imaging technology and transmitting the voltage data; when the voltage variation is larger than a set value, sending out leakage warning signals of the bottom plate of the oil storage tank, displaying warning position, and recording warning data and time; returning to the step of acquiring field data and transmitting the field data, and circulating the step; and when the detection device has a power fail, ending the detection process. The method has the characteristics of high measuring accuracy, quick response speed, simple method, easy realization, strong anti-disturbance capability, self-checking function, long service life, and wide application field, etc.

The invention provides a permanent magnet brushless direct current motor digital speed regulator. The permanent magnet brushless direct current motor digital speed regulator comprises an upper shell end cover, a middle frame, a lower shell end cover, a rotating speed indicating dial plate, a pointer, a PCB, a three-core single-chip microcomputer, a signal conditioning chip, a VMOS transistor drive chip, a VMOS transistor and a micro-stepping motor. The permanent magnet brushless direct current motor digital speed regulator is characterized in that a steering button, a stop button, a steering indicating light-emitting diode, a stopping indicating light-emitting diode, a speed regulating rotary knob and a speed regulating dial are mounted on the upper shell end cover; rotating speed numerical scales are carved in the rotating speed indicating dial plate, the middle frame is made of aluminum alloy and composed of a middle frame hollow cylinder and a middle frame cylinder hexahedron, and the middle frame hollow cylinder and the middle frame cylinder hexahedron are combined through six connecting lugs; the upper shell end cover and the lower shell cover are connected with the middle frame cylinder, a rotary shaft of the micro-stepping motor is externally connected with the pointer, and under control of the three-core single-chip microcomputer, the position, on the rotating speed numerical scales, of the pointer is the current rotating speed of a permanent magnet brushless direct current motor.

The invention relates to an automatic floating dock heaving control system which is characterized in that the system comprises a pressure level telemetry system, a water pump valve remote control system and a display alarm control system, the pressure level telemetry system and the water pump valve remote control system are connected with the display alarm control system, and an industrial controller is connected with an operation terminal and a backup operation terminal through routers. The automatic floating dock heaving control system of the invention has the following beneficial effects: the automatic floating dock heaving control system can automatically judge and switch the heaving mode according to a depth value set by an operator in an operation station, automatically cause corresponding water pumps and valves to perform load heaving operation, and automatically stop operation when the set depth value reaches without manual interference; and the system has the functions of automatic heaving mode switching, manual and automatic switching, intelligent floating state regulation, overrun alarm, fault alarm and the like, and has higher safety and reliability.

The invention discloses an integrated rail transit screen door machine controller. A direct-current brushless motor drive module is connected with a central processor through an isolating circuit; the central processor controls the operation of the motor by means of the direct-current brushless motor drive module and a three-phase full-bridge circuit; the central processor is connected with a LonWorks communication module through an isolating circuit, and the LonWorks communication module is connected with a LonWorks bus through a LonWorks communication transmission transformer; the central processor is connected with a CAN (controller area network) communication module through an isolating circuit, and the CAN communication module is directly connected with a CAN bus; the external input command signal of a control unit is inputted into signal conditioning circuits via a signal bus to be conditioned and then transmitted to the central processor via isolating circuits; and the status indication signal of the central processor is transmitted to the control unit via isolating circuits and drive circuits. The integrated rail transit screen door machine controller is small in size, highly integrated and highly stable, and has a self-test function, all the circuits are isolated from one another, and the integrated rail transit screen door machine controller is easy to maintain.

The invention belongs to site ventilation technologies and particularly relates to an intelligent local ventilation system applied to mines underground. The intelligent local ventilation system comprises a local ventilator, a speed adjusting device and a sensor or an underground signal monitoring system, wherein the local ventilator is a switch reluctance local ventilator. The speed adjusting device is an intelligent speed adjusting device and comprises a power source filter, a contactor, a switch reluctance controller, a programmable logic controller (PLC) control system 1, an intrinsically-safe isolating circuit and a transformer. The sensor is a gas, temperature and wind speed sensor. The sensor or the underground signal monitoring system is connected with the PLC control system 1 through the intrinsically-safe isolating circuit. Compared with the prior art, the intelligent local ventilation system is simple in structure, convenient to maintain, small in electromagnetic interference, high in system efficiency and long in service life, runs reliably and can achieve intelligent speed adjustment.

The invention discloses a vibration roller unmanned driving method applied to hydraulic engineering construction. The vibration roller unmanned driving method mainly comprises the steps that a rolleris started; modules are powered on; whether an obstacle avoidance module and a perceptual control module work normally or not is observed through a roller-mounted controller; the contour line of a to-be-rolled cabin surface, the running parameters of the roller, the rolling wheel width and the control mode are input through the interface of the roller-mounted controller, and the roller-mounted controller conducts automatic path planning on roller operation through the input parameters; the rolling wheel vibration frequency and the traveling speed are set; the perceptual control module perceives and controls the roller to conduct automatic rolling operation along the designed path at the set rolling wheel vibration frequency and the traveling speed; the obstacle avoidance module detects obstacles; a starting instruction is sent when it is detected that the obstacles are removed, and the roller continues operation; automatic operation of the roller is completed, and an operator observersthe compaction degree cloud picture and the rolling time cloud picture; whether the compaction quality meets the requirement or not is judged; if the cabin surface compaction degree meets the requirement, automatic rolling operation is completed; and the roller is shut down.

A ship engine room automatic alarm system is provided, which relates to the technical field of ship engine room alarming. The invention comprises an engine room comprehensive monitor and alarm device, an engineer calling main control device, a RS485 communication interface and two groups of CAN BUS on-site bus. The engineer calling main control device is connected to the engine room comprehensive monitor and alarm device via a two-way transmission signal of RS485 communication interface; the engineer calling main control device is connected to a group of CAN BUS on-site bus via two-way transmission signal; this group of CAN BUS on-site bus is respectively connected to a plurality of external extension points via two-way transmission signal; the engine room comprehensive monitor and alarm device is connected to another group of CAN BUS on-site bus via two-way transmission signal; this CAN BUS on-site bus is respectively connected to a switch degree output module, a simulation degree collection module and a plurality of switch degree collection modules via two-way transmission signal.

The invention discloses an online detection bench for a gearbox and a detection method. At present, the traditional automobile gearbox detection load side is mostly energy-consuming load, and energy recycling cannot be achieved. The online detection bench for the gearbox comprises a touch screen (1); the touch screen is connected with a programmable logic controller PLC (2) and an RS232/CAN communication converter (21) through Ethernet and an RS232 serial port line respectively; the PLC is respectively connected with a water cooling system (3) and an oil cooling system (4) through a control line; the oil cooling system is connected with the gearbox (10) through an oil cooling circuit; the water cooling system is connected with a load motor controller II (5) and a load motor II (8) respectively through a water cooling circuit; the load motor controller II is connected with a DC power supply (13) through a bus; and the DC power supply is connected with a driving motor controller (17) anda load motor controller I (16) through a bus. Thus, the online detection bench for the gearbox is disclosed.

The invention discloses a screw pump flow feedback speed regulating system which comprises an adjustable speed motor of a screw pump and also comprises a controller connected with the adjustable speed motor, and the controller is also connected with an outlet flow sensor and an alarm device; in the system, a closed-loop control system is formed with the adjustable speed motor as an executor, the outlet flow sensor as a sensor and the controller as a controller, the aim of the system is control of flow of the screw pump by controlling the rotating speed of the adjustable speed motor, and the problems that the flow of the screw pump can fluctuate sometimes due to variation of liquid viscosity when the screw pump is adopted for sucking and discharging liquid and the screw pump is hard to operate when stable flow is required are solved. The screw pump flow feedback speed regulating system disclosed by the invention has the advantages that the feedback control system is adopted, stable output flow of the screw pump is guaranteed, and the screw pump flow feedback speed regulating system has multiple self-checking functions and high stability.

The invention discloses a device for lightning location. The device comprises a magnetic field detecting antenna and an electric field detecting antenna which are used for obtaining magnetic field induction signals and electric field induction signals respectively, a lightning signal processing circuit which is connected with the magnetic field detecting antenna and the electric field detecting antenna and is used for processing the magnetic field induction signals and the electric field induction signals respectively so as to obtain corresponding lightning digital signals, a feature attribute parameter extraction circuit which is connected with the lightning signal processing circuit and is used for extracting feature attribute parameters from the lightning digital signals, and a communication muddle which is connected with the feature attribute parameter extraction circuit and is used for sending out the feature attribute parameters. With the device adopted, quick and accurate collection of original lightning data samples can be realized, and thus, basis can be provided for a central station in lightning location and analysis.

The invention discloses a point rail with a self-detection function used for a high-speed railway turnout. The point rail comprises a compromise rail (10), at least one optical fiber (20), an optical fiber abrasion wear sensor (30) and a demodulating system (40), wherein the compromise rail (10) serves as a rail for a rail train to travel and is used for placing the optical fiber (20); the at least one optical fiber (20) is arranged on the lower part of the tip of the compromise rail (10) and is used for sensing deformation and crack situations of the compromise rail (10); the optical fiber abrasion wear sensor (30) is used for monitoring the wear abrasion situation of the compromise rail (10); and the demodulating system (40) is used for demodulating the output signals of the optical fiber (20) and the optical fiber abrasion wear sensor (30) so as to obtain the deformation and the wear abrasion. By utilizing the point rail, the problems of real-time self-detection of the deformation and the crack of the rail and the long-distance transmission of the signals are solved.

The invention discloses a fuel gas monitoring system. The system comprises a wireless sensing network layer, an information transfer layer and a network layer, wherein the wireless sensing network layer is used for acquiring indoor fuel gas leakage state information through a wireless sensing network, and sensing safety data including the fuel gas leakage state information and corresponding user information through a first wireless network; the information transfer layer is used for receiving the safety data through the first wireless network and analyzing the same, and sending the corresponding fuel gas leakage state information through a second wireless network according to the user information in the safety data; the network layer is used for sending the fuel gas leakage state information to a monitoring terminal through the second wireless network; the monitoring terminal is a fuel gas company server, a mobile terminal and/or a property management monitoring centre; therefore, the user, fuel gas company and the property management can immediately obtain fuel gas safe operation information conveniently without the limiting of time and space; the safety of system monitoring and the reliability of data transmission are improved; and the system has the self-checking function, low power consumption, and wide spread and application value.

The invention relates to a multi-propeller heating and balancing method of a propeller-driven aircraft. The method comprises the following steps of: forming propeller heating elements on every three engines into a group and heating propellers on the engines respectively according to an sequence of 1, 2, 3; 2, 3, 4; 1, 3, 4 and 1, 2, 4, wherein the heating cycling time is controlled by a propeller heating balance controller, when atmosphere temperature is +5 to -12 DEG C, the heating time is 39s, and the power-down time is 80s, and when the atmosphere temperature is -12 to -55 DEG C, the heating time is 84s, and the power-down time is 92s so as to guarantee the propellers and rectifying covers thereof not to ice; when the aircraft enters an icing area, switching on a propeller heating switch on a control board on the top of a driver so that an indication green light is lightened when the propeller on the control board on the top of the driver is normally heated, and heating the propellers on the engines by a propeller heating controller according to received atmosphere temperature so as to achieve the deicing effect.