43results about How to "Easy and flexible detection" patented technology

The invention discloses a circuit plate fault self-positioning device and its positioning method based on a programmable logic unit. The device comprises a programmable logic unit with embedded test module and a debug machine which is connected with the programmable logic unit by a fault positioning interface. It positions the programmable logic unit and its embedded test module when the circuit plate system is running, which comprises: positioning the trigger condition, sampling the tested circuit plate signal and transmitting it to the debug machine through the fault positioning interface by the test module when the trigger signal satisfies the trigger condition, doing signal analyzing or human quoting by the debug machine to do circuit plate system fault positioning.

Provided is a two-position workpiece detecting mechanism capable of being rotated and lifted. A movable board which is connected with a driving device is arranged on a machine frame, first rolling shafts are supported on the movable board through a supporting frame, sleeved with first idler wheels, and connected with a first driving mechanism, and the first idler wheels are used for conveying workpieces; a guide sleeve is fixed to the movable board, a guide post is matched with the guide sleeve, the movable board is fixedly connected with an oil cylinder connected with a hydraulic control device, the outer end of the piston rod matched with the oil cylinder and the upper end of the guide post are connected with a supporting board together, the upper side of the supporting board is connected with a rotary board through a rotary table mechanism, second rolling shafts are supported on the upper surface of the rotary board, the second rolling shafts are sleeved with second idler wheels and connected with a second driving mechanism, and the second idler wheels are used for conveying the workpieces; a rotation limiting piece is arranged between the supporting board and the rotary board; the first rolling shafts are multiple in number, arranged in parallel, driven by the same driving mechanism, and linked through a transmission chain, and the second rolling shafts are multiple in number, arranged in parallel, driven by the same driving mechanism, and linked through a transmission chain. When the two-position workpiece detecting mechanism is used for detecting the workpieces, hoisting and shutdown are not needed, working efficiency is high, production cost is low, and flexibility and convenience are obtained.

The invention discloses a magnetic flux leakage defection machine of an oil sleeve. The magnetic flux leakage defection machine comprises a control cabinet, a computer, a production line detection system and a marking machine, wherein the control cabinet is respectively connected with the computer, the production line detection system and the marking machine through a signal line; and the production line detection system comprises a plurality of clamping driving devices, a vertical defect detection device and a transverse defect detection device. Electric signals of sleeve defects, detected by an infrared monitoring sensor on the production line detection system, are processed by a signal amplification circuit and a noise cancelling circuit and are divided into two paths; in one path, defect parts are accurately sprayed with marks by a signal processing circuit through utilizing the computer to drive the marking machine; and in the other path, defect signals are mixed into a simulated signal, and defect degree is displayed on a display screen of the computer through an A / D (Analog / Digital) converting circuit. With the adoption of the technical scheme of the invention, the magnetic flux leakage defection machine disclosed by the invention can carry out defect detection on the oil sleeve in rotation process on a production line, has small power consumption amount, is energy-saving and environment-friendly and has high detection sensitivity; and a probe does not need to be replaced when sleeves with different calibers are detected, the detection efficiency is high, the hooping of the oil sleeve can be smoothly avoided, the probe can be automatically reset after being detected, the service life is long, the cost is reduced, and the detection quality and the detection effect are improved.

The invention discloses a sample collection device for environment protection engineering. The sample collection device comprises a box, a first partition, a second partition, a third partition and afourth partition are sequentially fixed inside the box, a cover plate is mounted at the top of the box, the inside of the box is sequentially divided into a first cavity, a second cavity, a third cavity, a fourth cavity and a fifth cavity by the first partition, the second partition, the third partition and the fourth partition, a mounting plate is fixed at the top edge of the box, a control device is mounted on the lateral side of the mounting plate and comprises a touch screen and a PLC, a first temperature sensor is mounted on the lateral side of the first cavity, a first storage device ismounted inside the first cavity, and a cooling box is mounted inside the second cavity. The sample collection device is conducive to better preserving samples and convenient for detecting gas at different heights in a factory, and convenience and efficiency in the process of collection are improved.

The invention provides a kind of error detecting device for a digital exchanging system, which includes the first m series generator, series / parallel converting circuit, error receiving circuit, shift register, the second m series generator, control circuit, comparison circuit and error calculator; error detecting device generates series m series fake random code, which is converted into parallel data with the same width to exchanging channel through series / parallel converting circuit, the control circuit adds the parallel data into different the output channel of the error, then the data are returned to the input channel through external circuit, the error detecting device carries on the judgment if the returned data is fake random code.

The invention discloses a circuit plate fault self-positioning device and its positioning method based on a programmable logic unit. The device comprises a programmable logic unit with embedded test module and a debug machine which is connected with the programmable logic unit by a fault positioning interface. It positions the programmable logic unit and its embedded test module when the circuit plate system is running, which comprises: positioning the trigger condition, sampling the tested circuit plate signal and transmitting it to the debug machine through the fault positioning interface by the test module when the trigger signal satisfies the trigger condition, doing signal analyzing or human quoting by the debug machine to do circuit plate system fault positioning.

The invention provides a food detection method and device based on a neural network model, and relates to the field of artificial intelligence. The method comprises the following steps: acquiring a target image of a to-be-detected fresh food; performing convolution processing on the target image to obtain global features and local features of the target image; splicing the global features and the local features of the target image to obtain target image features of the target image; inputting the target image features into a target food quality detection model for processing to obtain first initial quality information of the fresh food; query request information is sent to a cloud management system to obtain second initial quality information of the to-be-detected fresh food, and the second initial quality information comprises a food producing area and a quality risk of the to-be-detected fresh food; and generating final quality information of the to-be-detected fresh food according to the first initial quality information and the second initial quality information.

A robot device for visually detecting a component in a core cavity of a pebble bed reactor comprises a driving unit, a lifting rotating mechanism, a connecting pipe assembly and a visual detection robot device body. According to the robot device, a mechanical arm is driven in a rope driving manner, so that the reliability of the visual detection robot device body working in high-temperature and radiation conditions in the core cavity can be improved, and meanwhile, the location and posture of a shooting system can be flexibly conveniently changed to achieve accuracy detection on the componentin the core cavity; in addition, an upper guide pipe set and a lower guide pipe set are used during rope driving, so that a guide structure of a rope is simplified; a main rod, a main rod sliding block, a crank and the mechanical arm form a crank sliding block mechanism which can be folded while passing through a small-size graphite fuel ball feeding channel and can be unfolded while entering a big-size core cavity, so that the robot device has the characteristic of being adapting to the core cavity being narrow in an entrance and wide in inside. The robot device is simple in structure, and capable of visually detecting the component in the core cavity of the pebble bed reactor.

Provided is a two-position workpiece detecting mechanism capable of being rotated and lifted. A movable board which is connected with a driving device is arranged on a machine frame, first rolling shafts are supported on the movable board through a supporting frame, sleeved with first idler wheels, and connected with a first driving mechanism, and the first idler wheels are used for conveying workpieces; a guide sleeve is fixed to the movable board, a guide post is matched with the guide sleeve, the movable board is fixedly connected with an oil cylinder connected with a hydraulic control device, the outer end of the piston rod matched with the oil cylinder and the upper end of the guide post are connected with a supporting board together, the upper side of the supporting board is connected with a rotary board through a rotary table mechanism, second rolling shafts are supported on the upper surface of the rotary board, the second rolling shafts are sleeved with second idler wheels and connected with a second driving mechanism, and the second idler wheels are used for conveying the workpieces; a rotation limiting piece is arranged between the supporting board and the rotary board; the first rolling shafts are multiple in number, arranged in parallel, driven by the same driving mechanism, and linked through a transmission chain, and the second rolling shafts are multiple in number, arranged in parallel, driven by the same driving mechanism, and linked through a transmission chain. When the two-position workpiece detecting mechanism is used for detecting the workpieces, hoisting and shutdown are not needed, working efficiency is high, production cost is low, and flexibility and convenience are obtained.

The invention discloses a detection system and method for the protection function of slope planting vegetation based on image analysis, relates to the technical field of slope detection, and solves the problem that the detection frequency of the protection performance detection of the existing slope greening is low and wastes a lot of manpower and For the problem of low material resources and detection efficiency, the key points of the technical solution are: including image acquisition module, type analysis module, plane distribution generation module, space distribution generation module, protection function calculation module, protection data output module and memory, with flexible pairing The protection performance of the slope greening area is tested everywhere, and the work efficiency and accuracy of the protection performance detection are improved.

The invention relates to a device for detection of cracks in a steel plate, specifically to a device for measuring leakage magnetic field of cracks in the surface of a steel plate on the basis of a new material Co-based amorphous-wire probe to realize crack detection. The device comprises an electromagnet (1), a Co-based amorphous wire (2), a duplex winding coil (3), a master control circuit board (4), a multivibrator circuit (5), a signal amplification circuit (6), a signal processing circuit (7), a touch display screen interface (8), a touch display screen (9), a power circuit (10) and a 12V lithium battery (11). The magnetic flux leakage testing probe is composed of the Co-based amorphous wire (2) and the duplex winding coil (3) connected to a differential structure. By the giant magneto-impedance effect of the amorphous wire, the novel probe can detect the leakage magnetic field formed by micro-cracks. In addition, a detection signal is processed by a STM32 processor, and finally crack depth is displayed on an LCD screen. The device can raise accuracy and sensitivity of detection of cracks in a steel plate and is especially suitable for detection of micro-cracks.

A method for detecting connection property between devices at GTP protocol end includes setting up communication detection path between devices at said end , sending path management message by detection path , confirming that interface between device at said end is connected properly if answering message from opposite end can be received at preset time .