81results about How to "With self-diagnosis function" patented technology

The invention relates to an automatic control system for an industrial coal powder boiler, which is characterized by comprising an industrial computer, a control cabinet, a core controller, an RS signal converter, an intelligent display instrument and a plurality of sensors; the output terminals of the sensors are connected with the input terminal of the intelligent display instrument, the output terminal of the intelligent display instrument is connected with the input terminal of the RS signal converter, and the output terminal of the RS signal converter is connected with the industrial computer and the control cabinet; the core controller is directly connected with the industrial computer and the control cabinet; and the core controller comprises a water supply controlling unit, a powder supply controlling unit, a pulverized-coal combustion controlling unit and a fly ash collection controlling unit. The invention not only can finish the acquisition of the related technical parameters of the boiler, ensure the normal running of the boiler, and achieve the optimum burning effect, but also can realize the automatic regulation and control of water supply, powder supply, starting and stopping and dust removal and ensure the normal running of the boiler under the condition without being monitored by a person.

The invention relates to a mobile internet intelligent wearable device. The device is used for achieving interaction response with external terminal equipment and comprises a central processing unit and a touch display screen, a wireless communication device, a data storage device, an internet speed monitoring device, an energy consumption monitoring device, a voiceprint recognition device, an audio input device, a rotatable camera, a camera vibration prevention processing device, an image encryption device, an environmental data collection device, a human body physiological data collection device, a physical health condition analyzer, a human body emotion recognizer, a three-axis acceleration sensor, a GPS locating device, a pressure sensor located on the touch display screen, a thermoelectric generator attached to the human skin, a projection device, an audio player and a vibrator which are connected with the central processing unit. The wearable device can actively and automatically recognize the emotion and physical health condition of a wearer, and the wearer can send out requesting information when the wearer is critically ill.

The invention discloses a method for detecting stress field of a hoist drum and a device thereof, and belongs to the detection methods and detection devices of drum stress field. In the device, a damper brake holder is positioned at the outside of the hoist drum, a wireless stress sensor node is fixed on the hoist drum, an anchor node is fixed on the damper brake holder, a sink node is fixed on the housing of a hoist operating console, and the sink node is connected with an industrial computer by a USB interface. The detection method and the device have the advantages of no any potential safety hazard to a hoisting system, being safe and reliable; very high communication rate and communication reliability and quick response speed to the system due to the use of UWB wireless communication technology; good operation conditions and convenient mounting and maintenance of the sensor node; low power consumption design of the wireless sensor node by which two AA batteries can be used for one year and which solves the power supply problem; and a self-diagnostic function of the sensor node, which facilitate to inform maintenance personnel to replace the sensor node or the batteries in time when the sensor node is damaged or the batteries run down.

The present invention discloses a DeviceNet fieldbus I / O device with short-circuit protection and self-diagnostic function, which comprises the following components: a DeviceNet interface unit which is used for executing data communication between the DeviceNet fieldbus, setting the bus node number and the communication baud rate of this node, and collecting and storing the input interface state and output interface state diagnosis data; an input / output short-circuit protecting and self-diagnosis unit which is used for executing data communication between the peripheral equipment, switching off the power for short-circuit protection and transmitting the input interface state and / or output interface state diagnosis data to the DeviceNet interface unit when the input / output interface circuit and / or the output interface circuit is shorted. The DeviceNet I / O device of the invention has the functions of short-circuit protection and self diagnosis, can switch off the power and provide self-diagnosis information when the interface power is shorted and automatically recover the operation when the short-circuit trouble is eliminated.

The invention discloses a balanced high-pressure large-current AC (Alternating Current) servo direct-driven cartridge valve, comprising an AC servo motor, wherein the AC servo motor and a harmonic reducer are connected to a valve sleeve, the output shaft of the AC servo motor is connected with the input shaft of the harmonic reducer, the output shaft of the harmonic reducer is connected with a leading screw by a coupler, the leading screw is provided with a sliding block, the sliding block is connected with a linear displacement sensor, the sliding block is connected with a valve rod, the end of the valve rod is provided with an external thread, a valve core is provided with an internal thread, the valve rod drives the opening and closing of the valve core by internal thread connection, a small end cover is connectedly fixed on a valve seat, and is fixedly connected with a valve core sleeve, a valve sleeve is inserted in the valve seat and fixed in the valve seat by a top end cover, the top end cover is fixed with the valve seat, and the valve seat is installed in a hydraulic system by a plug-in manner, so that the influence of the oil-liquid pressure on the valve is reduced, and the instant hydraulic power of the valve is small. According to the invention, as a closed-loop control servo direct-driven manner is adopted, the valve has the advantages of simple structure, rapid response, accurate control and high linearity.

Disclosed is a high-pressure high-flow alternating-current servo direct-driven threaded flow valve. An alternating-current servo motor directly drives a valve spool to open and close by the aid of transmission of threads, and the threads only need to transmit driving force on a single side during integral operation of the valve due to hydraulic force, and are selectively one-way transmission saw-toothed threads. The valve is simple in structure, accurate in control and convenient in use, can be directly digitally controlled by a computer and has excellent buffering and positioning performances, the requirement on positioning at an optional point can be met, a closed-loop system with an electrical feedback function can be realized, particularly, the problem that an original servo valve is sensitive to oil pollution can be effectively solved, and shortcomings that the original servo valve is used difficultly in high-pressure and high-flow environments and the like are also overcome. In addition, the valve is wide in working pressure range and high in flow, and can also work under extremely low oil supply pressure, the dynamic performance of the valve is rarely affected by the oil supply pressure, and the efficiency of a system can be improved due to the fact that intermediate transmission links are few.

The invention discloses a CANopen field bus input / output device with a short-circuit protection and self-diagnosis function, which comprises a CANopen interface unit and an input / output short-circuit protection and self-diagnosis unit, wherein the CANopen interface unit is used for carrying out data communication with a CANopen field bus, carrying out field data communication with the input / output short-circuit protection and self-diagnosis unit and acquiring input interface state diagnosis data and output interface state diagnosis data; and the input / output short-circuit protection and self-diagnosis unit is used for carrying out the data communication with peripheral equipment, and cutting off power to provide short-circuit protection and transmitting the input interface state diagnosis data and / or the output interface state diagnosis data to the CANopen interface unit when an input interface circuit and / or an output interface circuit are / is short-circuited. The CANopen I / O device of the invention has the short-circuit protection and self-diagnosis function, and can cut off the power and provide self-diagnosis information when the interface power is short-circuited and then return to work automatically after the short-circuit fault is removed.

A measurement apparatus of a non-contact toothed disk frequency and a method thereof are disclosed. A toothed band and toothed heads are combined to form a toothed disk. The toothed disk is installed on a large shaft of a water wheel generator. The toothed heads are uniformly installed on the toothed band according to a certain sequence and a certain quantity, directly face and are installed with a speed measurement probe in parallel, and keep a certain induction distance L with the speed measurement probe. The toothed heads, the toothed band and the speed measurement probe form a frequency signal generating unit. When the large shaft of the water wheel generator is rotated, the toothed disk generates a speed pulse along with rotation of the large shaft. Through the speed measurement probe, a pulse signal which generates a set frequency signal and reflects a set rotating speed is sensed. A frequency signal conversion plate processes an interference signal source and the pulse signal. A frequency measurement module measures a pulse width, according to a frequency generated by a square wave, a set rotating speed is calculated and is sent to a PLC controller so that the rotating speed is processed, and correlation information is displayed on a touch screen. The apparatus possesses a self-diagnosis function. When the speed measurement probe generates a fault, a system can automatically reject a fault channel. Through adopting the above mechanism, burst interference can be effectively restrained and a fault signal is removed. A fault tolerance capability of the measurement apparatus is greatly increased and system reliability is improved.

The invention discloses a quick protection method applicable to an intelligent distribution network. The method is that a current break variable starting element is utilized to start protection; adjacent protection devices exchange information; the protection is started from the downstream of a distribution circuit in which fault current is detected, and a circuit breaker at each protecting part is sequentially tripped off until reaching the upstream of the circuit, so that whether the fault current occurs in can be determined through adjacent protection devices before tripping off the circuit breaker to achieve fault positioning and fault isolation; meanwhile, an interconnection switch of each circuit is utilized to quickly recover from fault. With the adoption of the method, the quick fault positioning, fault isolation and recovery from fault of the distribution circuit can be achieved; the fault time is reduced; the power restoration of a non-fault power-off area is sped up; therefore, the power supply reliability is improved; the conflict between a distributed power supply and quick protection of the distribution network can be solved; in addition, the advantage of the network structure with high power supply capacity of the intelligent distribution network can be brought into full play, and the intelligent distribution network can be adapted well.

The invention discloses a modular control device for a platform door system. The modular control device comprises an SIG module, a PSL module and an IBP module. The SIG module is used for connecting the platform door system with an interface module of a background control system and receiving a door opening and closing instruction sent out by the background control system. The PSL module is used for connecting interface modules of local control panels inside the platform door system and receiving a door opening and closing instruction from the local control panels as well as a logical instruction formed by the multiple sets of the local control panels. The IBP module is used for connecting an emergency control interface module inside the platform door system and receiving a door opening and closing instruction from an emergency control panel as well as a smoke discharging control instruction. The self-diagnosis, modularization and multi-circuit control characteristics are achieved. The robustness and maintainability of the control device of the platform door system can be greatly improved. Due to the modular design, design cost can be greatly reduced, and the application prospects are good.

The invention discloses a coal mine safety monitoring system. The system comprises system ground equipment and system underground equipment; the system ground equipment comprises a UPS, a defibrillator, a monitoring host machine, a monitoring standby machine and a ground network switch; and the ground network switch is connected with the system underground equipment through an optical fiber; an underground industrial ring network is provided with at least two underground ring network switches; the first underground ring network switch is connected into the input end of a first monitoring substation, and at the same time, a first power source box is connected into the input end of the first monitoring substation; the first monitoring substation is provided with four output ends; the secondunderground ring network switch is connected into the input end of a second monitoring substation, and at the same time, a second power source box is connected into the input end of the second monitoring substation; and the second monitoring substation is provided with four output ends. The coal mine safety monitoring system of the invention has the advantages of high working efficiency, stable product quality, reliable safety, accurate monitoring, simple structure and convenient maintenance.

The invention provides a block material counter which has wide applicability and can be used for counting multi-specification block materials on the same production line. The block material counter comprises a fixed frame, wherein the frame is arranged at a production line material outlet and provided with an opposed fiber optic head; the fiber optic head scans a signal when the material flows and sends the signal to a counter controller; the block materials are scanned three-dimensionally through an opposed fiber optic net, multi-dimensional overall dimension information of the block materials is subjected to real-time detection, and then the information is sent to the counter controller; and through the processing of a counting algorithm, the number of the materials and other information related to the materials are acquired accurately in real time, and then automation functions of flow control, automatically counting packing, defective goods rejecting and the like of the block materials are achieved. The Block material counter has wide applicability and good compatibility of the multi-specification block materials, and can meet the requirements of the production lines of a plurality of industries.

The invention provides a low-voltage intelligent double-power-source change-over switch. A main power source, a secondary power source, a load power source wiring port, a red indicator lamp, a green indicator lamp, a liquid crystal display, a communication interface and various keys are arranged on a switch cover of the low-voltage intelligent double-power-source change-over switch; four driving energy-storage capacitors and a sampling circuit board are mounted in a left cavity of a switch base of the low-voltage intelligent double-power-source change-over switch; a main charging module, a secondary charging module, a main automatic voltage transformer, a secondary automatic voltage transformer, and three voltage mutual inductors are mounted on the sampling circuit board; a secondary capacitor and a control circuit board are mounted in a right cavity of the switch base; a main power source module, a secondary power source module, a main processor and a secondary processor are mounted on the control circuit board; four vacuum electromagnetic driving change-over switches respectively controlling an A phase power source, a B phase power source, a C phase power source and an N phase poser source are mounted in a middle cavity of the switch base; and a main power source lead-in wiring end, a secondary power source lead-in wiring end and a load power source lead-out sleeve are arranged on the switch. The invention provides a carrier capable of being actually applied to realizing the comprehensive intelligentization of functions of digital signal collection, processing, control and communication, and has the advantages of small size, compact structure, and convenience in utilization and installation.

The invention discloses a composite material intelligent anchorage with the self-monitoring function and a preparation method and relates to the technical field of novel building composite materials and sensors. The intelligent anchorage comprises sensing optical fibers (10), an anchor cup (20) and a clamping piece (30), wherein the clamping piece (30) and the anchor cup (20) are in inside-outside connection along the middle axial line, and the sensing optical fibers (10) are respectively embedded in the anchor cup (20) and the clamping piece (30). The preparation method of the intelligent anchorage comprises the following steps: (1) preparing a die and preparing materials; (2) soaking the prepared materials in resin; (3) filling the die; (4) closing the die; (5) stripping and polishing; and (6) welding a connecting port of the sensing optical fibers. The intelligent anchorage has the advantages of simple structure, low manufacturing cost, safety and reliability in the construction of a building structure, good durability and strong flexibility, and is used for anchoring prestressed tendons in a prestressed concrete structure and extensively applicable to house buildings, bridge beams, underground structures, pits, mine shafts, tunnels, slopes and other buildings.

A capacitive sensor for detecting a physical quantity includes a movable electrode and a fixed electrode, and a controlling unit for applying a signal between the movable electrode and the fixed electrode. The controlling unit includes an input terminal, an output terminal, and a time measuring means for measuring a time period. The controlling unit measures the time period, for which a diagnosis instruction signal is input into the input terminal. The controlling unit performs the self-diagnosis, after the instruction signal continues for a predetermined time period.

An automatic hard alloy spheral tooth robot of the present invention is a device which is used for picking, deburring, weighing, sorting and stacking before the sintering of hard alloy spheral teeth in the field of powder metallurgy. The structure includes a stander, a deburring mechanism, an electronic scale, a multi-joint robot and an automatic plate-replacing mechanism, and wherein, the multi-joint robot, the electronic scale and the automatic plate-replacing mechanism are mounted on the panel of the stander. The multi-joint robot comprises a base seat, three horizontal joints, a Z-axis motion mechanism and grasping fingers, wherein, the three horizontal joints includes an A-axis horizontal joint, a B-axis horizontal joint and a W-axis horizontal joint, the Z-axis motion mechanism is provided with a servo motor (Z) and a ballscrew nut, and a ballscrew thread is arranged on a rotary shaft (W). The grasping fingers are arranged on the lower end of the rotary shaft (W) (also called as Z axis) on the bottom of the Z-axis motion mechanism. The automatic plate-replacing mechanism consists of driving motors (No.1, No.2, No.3), synchronous dentiform conveyer belts (No.1, No.2, No.3), setter plates and an air cylinder.

The invention discloses a strip automatic assembly device for a packing machine and an assembly method thereof. The device comprises a base; and the base is provided with a buffer part, a first drum and a second drum. The device further comprises a strip cutting mechanism, a strip assembly mechanism and an assembly reinforcing mechanism; the buffer part comprises multiple fixed pulleys and movablepulleys; the movable pulleys can slide up and down along chutes formed in a support panel; the strip cutting mechanism comprises a cutting cylinder and a cutter; the cutter is arranged perpendicularto strips; the strip assembly mechanism comprises a first roller and a second roller; and the assembly reinforcing mechanism comprises a metal roller, a rubber roller and a reinforcing cylinder. The device further comprises a strip ending sensor, an abnormal film breakage detecting sensor, a pattern detecting sensor, an assembly failure sensor and a buffer detecting sensor for acquiring signals; and the acquired signals are sent to a PLC. The device can achieve precise and reliable assembly of the strips, and achieves a certain intelligence level.

The automatic stock arranging machine is used for picking up, weighing and stacking hard alloy blade stock to be sintered in powder metallurgy industry. The structure includes a frame, an electronic balance, a multi-joint robot, and an automatic plate changing mechanism. The electronic balance, the multi-joint robot and the automatic plate changing mechanism are installed on the frame panel. The multi-joint robot includes one pedestal, three horizontal joints, one Z-axis motion mechanism and picking fingers. The three horizontal joints include an A-axis one, a B-axis one and a W-axis one. The Z-axis motion mechanism includes servo motor and ball lead screw nut, and the ball lead screw in the W-axis is fitted with the ball lead screw nut, so that the rotation shaft W is driven with the Z-axis servo motor to move up and down. The automatic plate changing mechanism includes three driving motors, three toothed conveying belts, a sinter bearing plate and a cylinder.

The invention discloses an inertia measuring unit for motor vehicles, which comprises a storage battery, a main power module, a main controller module, a CAN (controller area network) communication module, a storage module, a sensor power module, a sensor controller module and an MEMS (micro electro mechanical system) sensor, wherein the main power module is connected with the storage battery so as to supply power for the CAN communication module, the storage module and the main controller module, the sensor power module is connected with the storage battery so as to supply power for the sensor controller module, the main controller module is connected with the main power module, the sensor power module, the sensor controller module, the storage module and the CAN communication module andcarries out control and communication, and the MEMS sensor is connected with the sensor controller module and transmits signals. Because the modules of the inertia measuring unit disclosed by the invention are relatively independent, the integral performance of the inertia measuring unit is more reliable, and the upgrading of an independent module does not affect the operation of other modules, thereby ensuring the application reliability of motor vehicles.

The invention relates to special high-temperature conveying equipment which is designed based on the improvement of the technological requirements of magnesium smelting and other special industries, in particular to a cylindrical ball mill. The cylindrical ball mill comprises a support, wherein a turnover speed-down motor and a rotary rack are fixed on the support, and the rotary rack is provided with a speed-down motor and a grinding drum which is driven by the speed-down motor and is provided with a manual cap opener. The cylindrical ball mill is characterized in that a bilayer water tank is arranged at the lower part of the grinding drum, a protective cover is additionally arranged on the upper edge of the bilayer water tank, a far infrared temperature measuring sensor is arranged at the rear part of the grinding barrel, and a photoelectric encoder is arranged behind the rotary speed-down motor. The cylindrical ball mill disclosed by the invention has a novel structure and is favorable for realizing a high-efficiency, uniform and consistent cooling manner and an automated temperature measuring and controlling manner.

The invention discloses a parking braking system. The system comprises a controller, an electromechanical actuator and the like. The electromechanical actuator comprises a motor, a reduction gear system, a brake caliper assembly and the like; the electronic controller consists of a power supply and a plurality of modules connected with the power supply; the plurality of modules comprise a main control module, wherein the main control module is connected with the other modules through circuits and realizes the control and the communication with each module. Technical problems of drifting phenomenon, insufficient braking force caused under a special working condition, hidden troubles existing in the aspects of safety and comfort and the like in a vehicle can be solved. Simultaneously, the system has the advantages of independent modules, more reliable overall performance, system safety, more compact structure, high integration level and easier system miniaturization.

The invention discloses an unmanned ship fault simulation system. The system comprises a command subsystem, a control navigation subsystem, a power propulsion subsystem, an energy power subsystem, a wireless communication subsystem and a data storage subsystem, and the subsystems establish connection with a data exchange center through a comprehensive communication link or an Ethernet link. The wireless communication subsystem is used for communicating with a shore-based / mother ship control system, a fault injection computer is connected with the data exchange center and can send a fault execution command to the data exchange center, and the fault execution command can also be sent to all subsystems through the data exchange center so as to simulate the fault situation. A system-level platform of an unmanned ship is built, and fault simulation of all subsystems and the data exchange center in the unmanned ship is achieved through the fault injection computer. The simulation system is safer, controllable and repeatable, the fault type can be manually set, and training and improvement of the fault solving capability of workers in actual operation are facilitated.

The invention relates to the field of energy conservation and emission reduction of an air supply system, in particular to an intelligent compressed air flow control device. The device comprises an intelligent control instrument, an upstream pressure sensor, a downstream pressure sensor, a valve positioner, a pneumatic operation mechanism and a linear pneumatic regulating valve, wherein the intelligent control instrument receives signals from the upstream pressure sensor and the downstream pressure sensor, takes an upstream pressure signal as a pressure display and fault judgment basis, compares a downstream pressure signal with a given target pressure signal, and outputs an appropriate pressure signal according to a comparison result to control the valve positioner, and the pneumatic operation mechanism further controls the opening of the linear pneumatic regulating valve until given pressure is equal to downstream pressure, wherein the given target pressure is set on site. The device is used for realizing intelligent air supply flow control and fault judgment and alarm, and has a good energy-saving effect.

The invention relates to an intelligent welding industrial control network operation console. The intelligent welding industrial control network operation console is characterized in that a PC industrial control computer (11), a rapid stop key (12), a main power switch key (13), a main power indication light (14), a standby key (15), an interchanger indication light (16) and an interchanger switch (17) are arranged on the outer part of a cabinet body (1); a ground copper bar (PE), an industrial network interchanger (U2), a direct current power (V1), a relay (K1), a 220V AC terminal A (X1), a 220V AC terminal B (X2) and a 12V DC terminal (X3) are arranged in the cabinet body (1); and the 12V DC terminal (X3) is connected with a robot welding signal acquisition multi-channel converter. The control module of the multi-channel converter can judge whether any of multiple interfaces and modules undergoes an abnormal condition or not; and the counter of a programmable logic controller can count the number of abnormal conditions of the multiple interfaces and the modules, so that the multi-channel converter of the intelligent welding industrial control network operation console has a self-diagnosis function.

An intelligent infrared gas sensor includes the chamber containing gas and exchanging gas with the outside, light source and at least one optoelectronic components, in which the light emitted by the said light source passes the chamber and arriving in the optoelectronic component, and the said optoelectronic component based on the intensity of the light to output the light intensity signal; its characteristic is that the sensor also includes: the signal processing circuit; the said signal processing circuit connects with the optoelectronic component for processing the said light intensity signal, and obtaining the measured gas concentration signal. Using this technology of the invention, the sensor can directly output the signal expressing gas concentration, and the sensor can be used independently, making application convenient and flexible; and using optimization program, it can reduce sensor size, improve the measurement accuracy, but also can measure more than one gas concentrations by requirement; at the same time, the intelligent sensor has self-diagnosis function.

The invention provides a water circulation temperature control device and system for heating liquefied natural gas. The water circulation temperature control device comprises a liquefied LNG storage tank, a low-temperature immersed pump, a vaporizer, a heat exchanger and a temperature control device body which are connected in a closed mode, wherein the outlet end of the liquefied LNG storage tankis connected with the inlet end of the low-temperature immersed pump through an LNG low-temperature pipeline a; the outlet end of the low-temperature immersed pump is connected with the inlet end ofthe heat exchanger through an LNG low-temperature pipeline B and the vaporizer; the outlet end of the heat exchanger is connected with upper-end equipment through a CNG pipeline; and the temperature control device body is connected with a water medium pipeline of the heat exchanger through a heating medium return port A and a heating medium outlet B. According to the water circulation temperaturecontrol device and system, the liquefied natural gas is gasified through the heat exchanger and then injected into a main machine; and heat of water is transmitted to the liquefied natural gas in theheat exchanger, the water is continuously heated and circulated and stabilized at a constant temperature, thus, the natural gas entering the main machine is at a constant pressure and a constant temperature, and the effects that the system is stable and reliable, the device is simple, and the cost is reduced are achieved.

The invention discloses a digital intelligent direct-travel electric actuator, and particularly relates to the field of electric actuators. The digital intelligent direct-travel electric actuator comprises a stepping motor, a speed reducer and a screw rod transmission mechanism, wherein the speed reducer is arranged on the front side of the stepping motor and is in transmission connection with thestepping motor, the screw rod transmission mechanism is arranged at the bottom of the speed reducer and is in transmission connection with the speed reducer through a longitudinal rotating shaft, andthe stepping motor is connected with a transverse rotating shaft. The stepping motor is controlled by a control module to drive the screw rod transmission mechanism to work, the intelligent control actuator enters the initialization stage, the stepping motor drives the transverse rotating shaft to rotate forwards and backwards, the stepping motor is blocked through mechanical limiting of the connected valve, a memory zero point position and a 100% point position are memorized by a CPU, the CPU is used for equally dividing according to a preset precision grade, the debugging is completed, theinstallation and debugging are simple, the zero position is not required to be adjusted frequently, the self-diagnosis can be carried out, and the maintenance frequency is reduced.

The invention relates to a wound type motor protector and a protection method thereof. The wound type motor protector comprises a power supply circuit that is connected with all circuits. And the wound type motor protector is characterized in that: the motor protector comprises a current signal preprocessing circuit, a temperature signal collection circuit, an A / D conversion circuit, a microprocessor, a keyboard and display circuit, an alarm and trip control circuit, and a communication interface circuit. The current signal preprocessing circuit and the temperature signal collection circuit are connected with the keyboard and display circuit and the alarm and trip control circuit through the A / D conversion circuit and the microprocessor. The microprocessor is connected with an upper computer through the communication interface circuit. According to the invention, a design of two single-chip microcomputers is employed; a response speed and an execution speed of the protector and hardware reliability are improved; a demand of integration of a protection function, a measurement function, a control function and a communication function of a wound type motor is met; one machine with multiple functions is realized; and an ampere meter, a voltmeter, a thermorelay, a time relay and a leakage relay and the like can be replaced.

The invention relates to an accurate monitor and circuits thereof for a controller application system in production field, which can be used for accurately and reliably monitoring abnormal application procedures in real time, such as image collection, system interruption during transmission, image deletion, image transmission failure and the like. The monitor at least comprises four parts, including a conversion interface for data information functions, a standard signal transmission interface, a processing unit for signal collection and comparison and a closed feedback unit. The invention has the main functions of circuit self diagnosis, time detection and monitoring information feedback. The invention mainly comprises a MAX 232 chip, a U3 optoelectronic isolation element, a U4 optoelectronic isolation element, a C5 capacitor, a C6 capacitor, an ATMEGA 8 single-chip computer chip and the like mutually connected. The invention can monitor the application system in real time, and can directly increase accuracy in production control and product information feedback so as to help enterprises to realize intellectual, accurate, sequential and effective management.