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31results about How to "With fault diagnosis function" patented technology

Intelligent vehicle controller

InactiveCN102541016AHigh degree of humanizationFault detection and maintenance are convenient and quickTotal factory controlProgramme total factory controlBus interfacePower management
The invention discloses an intelligent vehicle controller. The intelligent vehicle controller comprises a micro controller unit, wherein the signal input end of the micro controller unit is connected with a switching signal acquisition circuit unit, an analog signal acquisition circuit unit, a collision signal acquisition circuit unit and a vehicle body inclination signal acquisition circuit unit; the signal output end of the micro controller unit is connected with an output control circuit unit; the output control circuit unit outputs a control signal to an executive mechanism of a vehicle; the micro controller unit communicates with a controller area network (CAN) bus interface circuit unit, a local interconnect network (LIN) bus interface circuit unit and a memory unit; and a power management unit supplies power to the micro controller unit, other units and a vehicle sensor. The vehicle controller has high stability, strong functions, high universality and high anti-interference capability, is low in cost and meets the requirements of different working conditions.
Owner:沈阳中科正方新能源技术有限公司

Voice-driven controller and identification and control method for an intelligent wheelchair

The invention discloses an intelligent wheelchair voice drive controller and an identification and control method. The controller includes an audio circuit module, a voice processing circuit module, a MAX232 communication module, a DSP processor, a joystick circuit module, a speed regulation circuit module, Power supply circuit module, motor drive circuit module, fault detection circuit module, voltage and current detection circuit module, brake circuit module. Speech recognition adopts a specific human speech recognition method based on fuzzy support vector machine, which improves the recognition rate and enhances the anti-noise ability. The DSP processor controls the coordinated operation of the motor by outputting PWM waves. The invention proposes a master-slave intelligent wheelchair voice drive control scheme with a single-chip microcomputer as a voice information processor and a DSP as a drive controller. The advantage of the present invention is that it can be controlled manually or automatically by voice, and it is convenient to use.
Owner:JIANGSU UNIV OF SCI & TECH

Intelligent integrated control system of bag-type dust remover

InactiveCN110052095ALow costOptimize energy saving and dust removalHuman health protectionDispersed particle filtrationPerformance indexEngineering
The invention discloses an intelligent integrated control system of a bag-type dust remover. The intelligent integrated control system comprises a master controller, an electric equipment interface part, a terminal parameter setting system and a remote monitoring system and is characterized in that the master controller is used for detecting the pressure and temperature of a dust gas inlet / outlet,the pressure of compressed air blown by an air tank, induced draft fan power and gas emission indexes, achieving self-optimization according theses input / output signals and the optimal performance index and dynamically setting the filter air sped of the dust remover and the dust removing cycle of a dust removing process; a pulse dust removing instrument is used for achieving the pulse washing control function of the bag type dust remover, and a gas purification index detection device based on laser vision is used for shooting the purified gas image of a set area and acquiring gas particle indexes; the terminal parameter setting system is used for setting related parameters; the remote monitoring system is used for revising the self-optimization control strategies of the dust remover according to regional industry atmosphere emission indexes to perform performance keeping and cost control. The intelligent integrated control system has the advantages that the system can be assembled andmounted according to actual conditions, control system cost is lowered, and optimized energy conservation and dust removing are achieved.
Owner:UNIV OF JINAN

Power-down method and device for battery management system (BMS)

ActiveCN108773270AOptimize the power-off actionTroubleshoot someElectric devicesVehicular energy storageEmbedded systemElectricity
The invention relates to the field of electrical and electronic appliances, and provides a power-down method and device for a battery management system (BMS). The power-down method comprises the stepsthat through mutual cooperation of the BMS and a vehicle control unit (VCU), after a key signal disappears, the VCU issues a high-voltage power-down instruction to the BMS and obtains feedback information of the BMS, and after analyzing the feedback information, the VCU issues the next instruction until the whole power-down process is completed; and an adhesion breakdown and a charge release breakdown of a high-voltage relay can be detected in the power-down process, the BMS stores related data, and low-voltage power-down operation is completed. According to the power-down method for the battery management system, the VCU and the BMS are mutually matched, the power-down movement of a whole vehicle is optimized, sequential execution of the high-voltage power-down movement is achieved, andmeanwhile, the breakdown diagnosis function is achieved.
Owner:GEELY AUTOMOBILE INST NINGBO CO LTD +1

Variable flow low pressure fuel oil supplying device and method for pressurizing gasoline direct injection engine

The invention relates to a variable flow low pressure fuel oil supplying device for a pressurizing gasoline direct injection engine. A high pressure oil pump is connected with a low pressure oil pump through a low pressure oil supplying pipeline; a pressure and temperature sensor is installed on the low pressure oil supplying pipeline and is in output connection with an engine control unit; the engine control unit is connected with the low pressure oil pump through a fuel oil pump control module. After the engine control unit receives a fuel oil pressure signal, the current flow of a low pressure oil supplying system can be figured out according to current working conditions, then a PWM control parameter is calculated and output according to the actual fuel oil demand of an engine and fuel oil pressure requirements correlating with temperature, a voltage value needing to be provided to the low pressure oil pump is figured out through a oil pump control module, and therefore the low pressure oil pump can be controlled to operate at a corresponding rotation speed. The variable flow low pressure fuel oil supplying device for the pressurizing gasoline direct injection engine can control the oil pumps to operate at a most reasonable rotating speed according to the actual fuel oil demand; accordingly, the fuel oil consumption is reduced, and the noise is reduced.
Owner:CHINA FIRST AUTOMOBILE

Oil stealing prevention automobile fuel tank with fault diagnosis function

The invention discloses an oil stealing prevention automobile fuel tank with a fault diagnosis function. The automobile fuel tank comprises a tank body, a built-in oil suction tube, a second filteringnet, an air inlet tube and a pressure sensor, wherein an oil inlet tube is arranged at the left upper part of the tank body; a protective cover is in threaded connection with the upper part of the oil inlet tube; an external oil suction tube is arranged at the right upper part of the tank body; a fixing plate is arranged on the outer side of the external oil suction tube; the protective cover isarranged in front of the right side of the tank body; an oil blocking tube is arranged just below the oil inlet tube; a rubber layer is arranged on the outer side of a through hole; a movable stopperis arranged inside the rubber layer; an air-blowing port is connected to the right side of an air hole; a second blocking ball is arranged inside the air-blowing port; the pressure sensor is positioned on the inner side of the protective cover; a horn is arranged on the right side of the pressure sensor. The oil stealing prevention automobile fuel tank with the fault diagnosis function is providedwith the air-blowing port, and when the fuel tank is matched with an external air blower, the first filtering net can be cleaned, and the practicality of the device is increased.
Owner:LINGNAN NORMAL UNIV

Device and method for analyzing fault diagnosis and records of electric vehicle at charging station

The invention discloses a device and a method for analyzing the fault diagnosis and records of electric vehicles at a charging station. Existing monitoring center, charging devices and electric vehicles are utilized, and simultaneously the software function of each electronic control module on the monitoring center, the charging devices and the electric vehicles is added through unified communication protocol specifications, the function can be added but the cost is hardly increased in initial planning, the state messages, such as fault states, charging frequency, charging time and charging electric quantity, of the electric vehicles running on lines can be collected in real time by adding the corresponding function in product software as long as the unified communication protocol specifications are followed, and operating data are collected by monitoring VIN codes of the vehicles and analyzing the operating state of each electric vehicle, so that real time monitoring and optimized dispatching are realized.
Owner:NINGBO JIANGBEI GOFRONT HERONG ELECTRIC

Circuit for achieving general switching value collection through AD channel

The invention provides a circuit for achieving general switching value collection through an AD channel. The circuit comprises clamping diodes, resistors and a capacitor. The clamping diodes comprise the clamping diode D1 and the clamping diode D2. The resistors comprise the resistor R450, the resistor R453, the resistor R522 and the resistor R562. The capacitor is the capacitor C233. The resistor R450 and the capacitor C233 are connected in parallel and then are connected with the clamping diode D1 in parallel. The resistor R453 and the clamping diode D2 are connected in parallel. The negative pole of the clamping diode D1 is connected with the positive pole of the clamping diode D2, one end of the resistor R562 and one end of the resistor R522. The circuit can achieve general collection of vehicle switching value signals and open circuit fault judgment.
Owner:CHINA NORTH VEHICLE RES INST

A system for automatically identify a tractor trailer and a control method thereof

A system for automatically identify a tractor trailer includes a body controller and a central processor arranged therein, Lamp Switch Signal Collector, ON switch signal collector, a trailer lamp drive chipset and a tractor lamp drive chipset, the signal output end of the lamp switch signal collector and the ON switch signal collector are connected with the signal input end of the central processing unit, The driving signal output end of the CPU is respectively connected with the control end of the trailer lamp driving chip set and the tractor lamp driving chip set, and the current signal feedback ends of the trailer lamp driving chip set and the tractor lamp driving chip set are both connected with the feedback signal input end of the CPU, and the current signal feedback ends of the trailer lamp driving chip set and the tractor lamp driving chip set are connected with the feedback signal input end of the CPU. The signal output terminal of the central processor is connected with a CANcommunication unit, and the CAN communication unit is connected with a meter signal through a CAN bus. This design not only simplifies the structure of vehicle body and wiring harness, but also can diagnose the malfunction of vehicle lamp and judge the state of trailer.
Owner:DONGFENG COMML VEHICLE CO LTD

Elevator intelligent operation safety monitoring system

The invention relates to an elevator intelligent operation safety monitoring system. The system consists of each elevator monitor, an elevator intelligent diagnosis monitoring center and an emergencyprocessing answering module; each elevator monitor comprises a Zigbee communication module, a human body inductor, a sensor unit, an information display module, a storage module, a speaker, a photoelectric detector, a microprocessor, a hall switch, an alarm and a power supply; the elevator intelligent diagnosis monitoring center comprises a wireless gateway, a central monitor, a fault diagnosis machine, an on-duty operator commander, a maintainer commander and an alarm; and the emergency processing answering module comprises a security mobile phone terminal, a security center phone terminal, an elevator intelligent diagnosis monitoring center phone terminal, a city emergency center phone terminal and a firefighting part rescue phone terminal. The system can obtain comprehensive informationof each elevator, achieves excellent instantaneity and fault diagnosis function, and can timely notify on-duty operators and maintainers to quickly adopt emergency measures when abnormalities occur.
Owner:FUJIAN YIANG ELECTROMECHANICAL CO LTD

Attitude adjusting and steering system for business seats of rail transit

The invention relates to an attitude adjusting and steering system for business seats of rail transit. The attitude adjusting and steering system for the business seats of the rail transit comprises the business seats, wherein each of the business seats mainly comprises a seat swivel, a seat base, a seat cushion, a backrest, leg rests, a pedal, control panels, a backrest actuator, a leg rest actuator, and a pedal actuator; a seat attitude adjusting and steering system is further arranged on each business seat, and comprises a controller, a control panel, an electric rotating mechanism and an electric clutch disengagement mechanism; the system further comprises control terminals connected with the seat attitude adjusting and steering systems on all the business seats in a same area; the control terminals comprise function control modules and display modules. The system can adjust seat attitudes through the control panels mounted on the seats, and the control panels can control the single seat to eclectically rotate at any angles to improve the ride experience, furthermore, the control terminals can control a single section of compartment seats to achieve automatic rotation completely.
Owner:湖北韵生航天科技有限公司

Railway vehicle-oriented parallelizable double-voltage power supply module with multi-protection

The invention relates to a railway vehicle-oriented parallelizable double-voltage power supply module with multi-protection. The power supply module comprises two paths of power supply units, wherein each path of power supply unit comprises an EMC protection and conditioning circuit, an under voltage protection circuit, a temperature protection circuit, a parallelizable double-voltage conversion circuit, a parallel output isolation circuit and a filtering and voltage stabilizing circuit; the parallelizable double-voltage conversion circuit of each path of power supply unit is provided with two groups of voltage conversion chips; the two groups of voltage conversion chips share a front-end protection circuit; both the two groups of voltage conversion chips are provided with mode switch pins; when the mode switch pins of the voltage conversion chips corresponding to the two paths of power supply units are switched off, the two paths of power supply units are output in parallel in a hot standby manner; and when the mode switch pins of the voltage conversion chips corresponding to the two paths of power supply units are switched on, the two paths of power supply units are output in parallel in a current sharing manner. The power supply module provided by the invention is convenient and suitable for different occasions, and has the effects of reducing the cost and shortening the development period.
Owner:CRRC QINGDAO SIFANG ROLLING STOCK RES INST

CAN bus-based distributed control system for controlled atmosphere fresh-keeping transport vehicle and realization method thereof

The invention discloses a CAN bus-based distributed control system for a controlled atmosphere fresh-keeping transport vehicle and the realization method thereof. The control system comprises a main controller node and communication nodes, wherein the main controller node comprises an ARM control panel with a CAN communication port and a touch screen, the main controller node is installed on the instrument panel in the cab of the controlled atmosphere fresh-keeping transport vehicle, the communication nodes comprise a pressure chamber node, a vehicle head node, a negative pressure chamber node and a fresh-keeping chamber node, and the main controller node communicates with the communication nodes through CAN buses. The communication medium employs bi-core leads with shielding net. Four communication nodes of the pressure chamber node, the vehicle head node, the negative pressure chamber node and the fresh-keeping chamber node and the main control node are employed, and communication among all nodes is carried out through CAN buses. The working stability of the system is improved. The control system has fault diagnosis function, acquires the sensor parameter scope and performer working current of the communication nodes on a real-time basis, and determines the working state of devices after calculation and analysis.
Owner:SOUTH CHINA AGRI UNIV

Rapier loom control system based on embedded flexible PLC

The invention discloses a rapier loom control system based on an embedded flexible PLC. The system adopts a modularized design and comprises a flexible PLC development module, a multi-power-supply conversion module, a common input module, a common output module, a high-speed signal transmitting module, a high-speed signal collecting module, an analog input module, an analog output module, a Flashstorage expansion module, a communication interface module, an SWD debugging module, an Ethernet module and a wireless module; the system mainly takes an embedded control system platform as the support, the flexible PLC is solidified to the embedded control system platform, so that the embedded control system platform has the effects that the integrity is high, the manufacturing cost is low, the expansibility is high, and real-time industrial interconnection can be achieved, by adopting a flexible PLC system, the rapier loom control system has the function of achieving PLC programming, the simple programmability is achieved, the development cost is reduced, and the input of later maintenance can be greatly reduced.
Owner:HEBEI UNIV OF TECH +1

Detecting method of elevator intelligent operation safety monitoring system

The invention relates to a detecting method of an elevator intelligent operation safety monitoring system. A flat floor sensor detects if an elevator car is stopped on a flat floor; if the stop position is abnormal, an alarm is given; a state sensor detects if a car door is closed; if the car door is closed abnormally, a background alarm is given; a speed sensor senses the speed of the car all thetime; an infrared sensor senses if persons are in the car; a temperature sensor and a humidity sensor are arranged in the monitoring system; normal operation of an elevator can be influenced by abnormal temperature and humidity of the elevator; and once the temperature and the humidity are abnormal, the monitoring system can timely give an alarm to remind background workers to maintain. Comprehensive information of each elevator can be obtained; excellent instantaneity is achieved; a fault diagnosis function is achieved; and when abnormalities occur, operators on duty and maintainers can be timely notified to facilitate quick adoption of emergency measures.
Owner:南安市中研中医药有限公司

Laser radar full-automatic detection system suitable for intelligent production line

The invention discloses a laser radar full-automatic detection system suitable for an intelligent production line. The system comprises a laser radar, an adjustment-free support, an interface conversion assembly, a distance measurement driving module, a data acquisition module, a system control and data center, an electric control translation platform, a laser power test end, a laser pointing testend, a ranging laser receiving end, an analog-digital acquisition I / O assembly, a program control link jumper switch, an optical fiber delay link, a narrow pulse laser signal source, a background light interference source, a double-path program control optical attenuator, a double-path optical fiber combiner, an optical fiber collimator, an electric control rotation and tilting platform and a three-axis motion controller. Spatial distributed automatic measurement of laser power, laser pointing and ranging performance is realized through electric control translation, and laser pointing test iscombined with electric control rotation and inclination to realize self-alignment of laser simulation echo; an optical fiber delay link module is innovatively designed, and one-key full-automatic detection of laser radar performance in different distances, different targets and different environments is realized.
Owner:NANJING UNIV OF SCI & TECH

Device and method for automatic test and fault diagnosis of plane audio integrated system

The invention relates to a device and method for automatic test and fault diagnosis of a plane audio integrated system, which are used for maintaining the plane audio integrated system of Airbus series and Boeing series. The method comprises the steps of: operating test software by an industrial personal computer to provide a man-machine interaction environment, and carrying out analysis, computation and statistic treatment on acquired data so as to further complete fault diagnosis; compiling a fault diagnosis program according to all circuit diagrams and test point information of the audio integrated system, provided by a CMM (Capability Maturity Model for Software) manual, and clearing up injected data information on faults, excitation, response and the like to form a fault record in a fault dictionary; in the fault diagnosis program, providing the positions of testing points in need of manual measurement and corresponding test information; testing the testing points in need of manual measurement by detection personnel to confirm a fault area, and displaying corresponding diagnosis results. The device and method provided by the invention can commonly meet the requirement of the automatic test for two types of audio integrated systems including the AMU (Audio Management Unit) of Airbus series planes and the REU (Remote Electronic unit) of the Boeing series planes, and are favorable for reducing the labor intensity of maintenance personnel and improving maintenance efficiency.
Owner:CIVIL AVIATION UNIV OF CHINA

Intelligent operation safety monitoring system for elevators

The invention relates to an intelligent operation safety monitoring system for elevators. The intelligent operation safety monitoring system is composed of elevator monitoring devices, an intelligentelevator diagnosis and monitoring center and an emergency processing and response module. Each elevator monitoring device comprises a Zigbee communication module, a human body sensor, a sensor unit, an information display module, a storage module, a speaker, a photoelectric detector, a microprocessor, a Hall switch, an alarm device and a power source. The intelligent elevator diagnosis and monitoring center comprises a wireless gateway, a central monitor, a fault diagnosis device, an on-duty personnel director, an overhauling personnel director and an alarming device. The emergency processingand response module comprises a public security mobile phone terminal, a public security center telephone terminal, an intelligent elevator diagnosis and monitoring center telephone terminal, an urbanemergency center telephone terminal and a fire-fighting partial rescue telephone terminal. By the adoption of the intelligent operation safety monitoring system, the comprehensive information of eachelevator can be obtained, the real-time performance is good, and the fault diagnosis function is provided; and when an abnormality occurs, on-duty personnel and maintenance personnel can be notifiedin time, and emergency measures can be taken quickly.
Owner:南安市中研中医药有限公司

Establishment method of double-machine complete-machine-level hot standby system

The invention provides a method for establishing a dual-computer complete machine level hot standby system, which realizes master-slave identification, dual-computer intelligent switching and dual-computer information synchronization of initialization of a dual-computer system through heartbeat information intercommunication between dual computers. The dual-computer intelligent switching comprises four parts of detection parameter state acquisition, single-computer fault diagnosis, switching interpretation and switching control. By utilizing the method provided by the invention, self-diagnosis and intelligent switching of the dual-computer system are realized, and the intelligent degree and the reliability level of the dual-computer system are improved to a great extent.
Owner:BEIJING AEROSPACE MEASUREMENT & CONTROL TECH

Parallel-connectable dual-voltage power supply module with multiple protections for rail vehicles

The invention relates to a railway vehicle-oriented parallelizable double-voltage power supply module with multi-protection. The power supply module comprises two paths of power supply units, wherein each path of power supply unit comprises an EMC protection and conditioning circuit, an under voltage protection circuit, a temperature protection circuit, a parallelizable double-voltage conversion circuit, a parallel output isolation circuit and a filtering and voltage stabilizing circuit; the parallelizable double-voltage conversion circuit of each path of power supply unit is provided with two groups of voltage conversion chips; the two groups of voltage conversion chips share a front-end protection circuit; both the two groups of voltage conversion chips are provided with mode switch pins; when the mode switch pins of the voltage conversion chips corresponding to the two paths of power supply units are switched off, the two paths of power supply units are output in parallel in a hot standby manner; and when the mode switch pins of the voltage conversion chips corresponding to the two paths of power supply units are switched on, the two paths of power supply units are output in parallel in a current sharing manner. The power supply module provided by the invention is convenient and suitable for different occasions, and has the effects of reducing the cost and shortening the development period.
Owner:CRRC QINGDAO SIFANG ROLLING STOCK RES INST

Charging station's diagnosis of electric vehicle failure and record analysis devices and methods

The invention discloses an electric vehicle fault diagnosis, recording and analysis device and method thereof at a charging station. The existing monitoring center, charging device and electric vehicle are used, and the monitoring center, charging device and electric vehicles are added at the same time through a unified communication protocol specification. The software function of the electronic control module is realized by adding this function in the early stage of planning with almost no increase in cost. It only needs to follow the unified communication protocol specification and add corresponding functions in its product software to collect real-time data of electric vehicles operating on the line. Vehicle fault status, charging frequency, charging time, charging power and other status information, monitor and analyze the running status of each electric vehicle through the vehicle VIN code, collect running data, and realize real-time monitoring and optimal scheduling.
Owner:NINGBO JIANGBEI GOFRONT HERONG ELECTRIC

Coke high-temperature dynamic reactivity controller

The invention discloses a coke high-temperature dynamic reactivity controller, which can detect, control and display temperature signals and carbon dioxide and nitrogen flow signals simultaneously. The coke high-temperature dynamic reactivity controller comprises a signal amplification part, a filter circuit, an AD (Analog to Digital) converter, a signal chip microcomputer PIC16F877A, 0-5V signal input, 0-5V signal output, a keyboard, a display panel, a 485 communication bus and a power module. The coke high-temperature dynamic reactivity controller has the functions of temperature control, two-loop flow control and collection, and is particularly suitable for being used as a controller of a coke high-temperature reactivity furnace. The controller is good in stability and very strong in antijamming capability, and has a sensor channel fault diagnostic function; and a communication channel has very high isolation voltage which can reach 1000 volt.
Owner:UNIV OF SCI & TECH LIAONING

Semi-intelligent differential lock closed-loop control system and method based on differential lock controller

The invention discloses a semi-intelligent differential lock closed-loop control system and method based on a differential lock controller. The method includes the following steps: step S1, collecting the vehicle speed signal in real time, the steering wheel angle signal output by the steering angle sensor, the wheel The inter-wheel / inter-axle differential lock switch signal output by the inter-axle / inter-axle differential lock switch and the ON gear power switch signal output by the ON gear switch; step S2, based on the collected vehicle speed signal and the steering wheel angle signal output by the steering angle sensor , When the inter-wheel / inter-axle differential lock switch signal output by the inter-wheel / inter-axle differential lock switch and the ON gear power switch signal output by the ON gear switch all meet the opening conditions of the inter-wheel / inter-axle differential lock, the drive inter-wheel The inter-axle differential lock solenoid valve controls the work of the inter-wheel / inter-axle differential lock and outputs the inter-wheel / inter-axle differential lock working status indication signal to the instrument to light up the inter-wheel / inter-axle differential lock working indicator in the instrument lamp.
Owner:DONGFENG LIUZHOU MOTOR

A method and device for powering off a battery management system

The invention relates to the field of electronic appliances, and provides a power-off method and device for a battery management system. The power-off method cooperates with the BMS and the VCU. After the key signal disappears, the VCU issues a high-voltage power-off command to the BMS and obtains feedback information from the BMS. After the VCU analyzes the feedback information, it issues the next step until the entire power-off is completed. It can detect the high-voltage relay adhesion fault and charge discharge fault during the power-off process, and the BMS stores relevant data and completes the low-voltage power-off operation. The power-off method of the battery management system proposed by the present invention, VCU and BMS cooperate with each other, optimize the power-off action of the whole vehicle, not only realize the sequential execution of high-voltage power-off actions, but also have a fault diagnosis function.
Owner:GEELY AUTOMOBILE INST NINGBO CO LTD +1

An intelligent vehicle controller

The invention discloses an intelligent vehicle controller. The intelligent vehicle controller comprises a micro controller unit, wherein the signal input end of the micro controller unit is connected with a switching signal acquisition circuit unit, an analog signal acquisition circuit unit, a collision signal acquisition circuit unit and a vehicle body inclination signal acquisition circuit unit; the signal output end of the micro controller unit is connected with an output control circuit unit; the output control circuit unit outputs a control signal to an executive mechanism of a vehicle; the micro controller unit communicates with a controller area network (CAN) bus interface circuit unit, a local interconnect network (LIN) bus interface circuit unit and a memory unit; and a power management unit supplies power to the micro controller unit, other units and a vehicle sensor. The vehicle controller has high stability, strong functions, high universality and high anti-interference capability, is low in cost and meets the requirements of different working conditions.
Owner:沈阳中科正方新能源技术有限公司

Urban rail transit signal maintenance supporting system

The utility model provides an urban rain transit signal maintenance supporting system, which comprises equipment centralized stations, car depots, parking bays, mobile servicing system (MSS) station equipment arranged in a control center on an urban rail transit line. MSS line maintenance center equipment arranged in the line maintenance center of the urban rail transit line communicates with all MSS station equipment on the rail transit line. MSS net maintenance center equipment arranged in the net maintenance center of the urban rail transit line communicates with all MSS line maintenance center equipment on the urban rail transit line. The system is important running equipment for guaranteeing running safety, enhancing signal equipment combination part management, monitoring the status of signal equipment, finding potential hazards in the signal equipment, analyzing fault causes of the signal equipment, assisting with fault handling, guiding field maintenance, reflecting equipment application quality and improving the maintenance level and the maintenance efficiency of signal departments.
Owner:HENAN SPLENDOR SCI & TECH

An Angle Measurement and Fault Diagnosis System with Flying Alarm Function

An angle measurement and fault diagnose system with a spinning warning function comprises a variable reluctance sensor (1), a shaft angle conversion circuit (2), a spinning warning circuit (3), a monitoring interface circuit (4), a monitoring CPU (5), a positive and negative angle identification circuit (6), a definite time counting circuit (7), a definite number timing circuit (8), a bus interface circuit (9) and a bus CPU (10). The shaft angle conversion circuit converts the output of the variable reluctance sensor into a pulse signal, the signal can be exported to the bus CPU by passing the positive and negative angle identification circuit, the definite time counting circuit, the definite number timing circuit and the bus interface circuit, and can be used for angle measurement and orientation identification. The spinning warning circuit is used for judging whether a tested object is over speed, and sends the over speed signal to the monitoring CPU through the monitoring interface circuit. The spinning warning circuit is simple in structure, has the functions of spinning warning, angle measurement and fault diagnose, can improve the reliability of the angle data measurement.
Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES

Distributed control system and implementation method of air-conditioning fresh-keeping transport vehicle based on CAN bus

The invention discloses a CAN bus-based distributed control system for a controlled atmosphere fresh-keeping transport vehicle and the realization method thereof. The control system comprises a main controller node and communication nodes, wherein the main controller node comprises an ARM control panel with a CAN communication port and a touch screen, the main controller node is installed on the instrument panel in the cab of the controlled atmosphere fresh-keeping transport vehicle, the communication nodes comprise a pressure chamber node, a vehicle head node, a negative pressure chamber node and a fresh-keeping chamber node, and the main controller node communicates with the communication nodes through CAN buses. The communication medium employs bi-core leads with shielding net. Four communication nodes of the pressure chamber node, the vehicle head node, the negative pressure chamber node and the fresh-keeping chamber node and the main control node are employed, and communication among all nodes is carried out through CAN buses. The working stability of the system is improved. The control system has fault diagnosis function, acquires the sensor parameter scope and performer working current of the communication nodes on a real-time basis, and determines the working state of devices after calculation and analysis.
Owner:SOUTH CHINA AGRI UNIV

A lidar automatic detection system suitable for intelligent production lines

The invention discloses a laser radar automatic detection system suitable for an intelligent production line, including a laser radar, an adjustment-free support, an interface conversion component, a distance measurement drive module, a data acquisition module, a system control and data center, and an electronically controlled translation Taiwan, laser power test end, laser pointing test end, ranging laser receiver, modulus acquisition I / O components, program-controlled link jumper switch, optical fiber delay link, narrow pulse laser signal source, background light interference source, Dual path control optical attenuator, dual fiber beam combiner, fiber collimator, electric control rotation and tilt table and three-axis motion controller. The invention realizes the spatially distributed automatic measurement of laser power, laser pointing and ranging performance through electronically controlled translation, and combines the laser pointing test with electronically controlled rotation and tilt to realize the self-alignment of laser simulated echoes; the innovative design The optical fiber delay link module realizes one-button automatic detection of lidar performance in different distances, different targets and different environments.
Owner:NANJING UNIV OF SCI & TECH

Intelligent low-voltage power distribution system control device and its control system

This application discloses an intelligent low-voltage power distribution system control device and its control system. The solution proposed by the invention solves the problem that the control method of the existing low-voltage power distribution technology for automobiles is not intelligent, and the protection devices such as fuses are damaged after performing protection tasks and need to be replaced. Key parameters such as current, voltage, temperature, energy loss, faulty devices, and fault types cannot be reported in a timely and effective manner, energy consumption cannot be effectively managed, and battery charging is not protected.
Owner:浙江中科正方电子技术有限公司
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