30results about How to "Implement telemetry" patented technology

The invention relates to a laser speckle defocused imaging-based vibration detection method. In the prior art, the lossless remote measurement of the vibration information cannot be realized. The method is designed based on the laser speckle defocused imaging principle and integrates the line scanning technique of a two-dimensional photoelectric sensor, wherein a laser beam is irradiated onto a to-be-detected region. Laser speckles are imaged by means of a defocused optical imaging system. A spectroscope is arranged in the image space of the defocused optical imaging system to divide the laser beam into two beams. The image plane of each imaging beam is provided with a two-dimensional photoelectric sensor and the photoelectric sensor is set to run in the line-scanning and imaging mode. A vibration analysis unit is used for processing line-scanning and imaging signals to obtain the vibration information of the to-be-detected region. The laser speckle defocused imaging-based vibration detection method has the advantages of non-contact detection, non-damage detection, remote measurement, high sensitivity, high reliability, strong anti-interference capability, wide frequency response range, large information amount, easy construction, convenient usage, wide application range, easily extended function, convenient integration, flexible construction, low cost and the like.

The invention discloses a contact box with online ground fault detection and three-remote functions. The contact box is arranged in a KYN61-40.5 intermediate switch cabinet and comprises a background management module, a detecting and sending module, an alarm module and a sensing module. The contact box with the online ground fault detection and three-remote functions has the advantages that the contact box succeeds in mastering three-phase current and zero-sequence current change information in real time, discovering ground fault timely and achieving remote telemetering, telesignalization and relevant telecontrol of ground faults of the switch cabinet and can guarantee that safe and stable operation of the switch cabinet cannot be affected by existence of the ground faults, so that power supply reliability is improved effectively.

A rotary dynamic milling torque measurement instrument comprises a milling tool, a tool handle, a power supply system and a signal transmission system; wherein the tool handle is integrated with a torque sensor which comprises a sensitive element directly processed on the tool handle, a resistance strain foil bond on the sensitive element and a signal correction circuit connected with the strain foil; the signal correction circuit amplifies and outputs the signals generated by the strain foil to the signal transmission system connected with the signal correction circuit; the signal transmission system receives the signals output by the signal correction circuit and transmits the signals in a wireless transmission way; the power supply system adopts an electromagnetic induction way to supply power for the sensor. The invention integrates the torque sensor in the tool handle, so that the tool handle is provided with the torque measurement function, simple structure and convenient manufacture; the sensor power supply of the invention ensures the power supply not to be influenced by the tool handle rotation; and the wireless signal transmission way of the invention can cause the signal receiving end to depart from the cutting area appropriately.

The invention discloses a lightweight in-band network telemetry method oriented to an Overlay network, comprising the following steps: S1. Encapsulating IP packets to obtain detection data packets, so that the detection data packets can sequentially collect IDs of Underlay devices along the way and Link state information on the port side of the device; S2, analyze the detection data packet; S3, start traversing with any device in the overlay network as the root node, and obtain a non-overlapping detection path; S4, according to the detection path in step S3 Perform control to obtain a customized forwarding path of the detection data packet; S5, when the detection data packet reaches the end point, store and query the collected network monitoring information. The present invention also provides a lightweight in-band network telemetry device and a storage medium oriented to the overlay network of the present invention, which can realize the lightweight overlay network monitoring with lower overhead.

The invention discloses a hyperspectral-based ship exhaust measurement system, which includes a hyperspectral data acquisition module, a data preprocessing module and a spectral analysis module; the hyperspectral data acquisition module includes a line-scanning hyperspectral camera and an ordinary camera; the ordinary camera is used to locate the target ship; the hyperspectral camera is used to collect the spectral data of the target ship exhaust by real-time line scanning; the data preprocessing module is used to preprocess the collected hyperspectral image data; The processed hyperspectral image data is analyzed and processed, and there is a multi-dimensional time-series ship exhaust spectral analysis model based on support vector machines. The multi-dimensional time-series ship exhaust spectral analysis model inputs the hyperspectral image data of the target ship exhaust, and outputs the composition data of the exhaust gas . The invention also discloses a method for measuring ship tail gas based on hyperspectrum. The invention establishes a spectrum analysis model based on a support vector machine, thereby improving recognition speed and accuracy.