44results about How to "The processing algorithm is simple" patented technology

The invention provides a monitoring-determining method and device for four redundancy signals Y1, Y2, Y3 and Y4. The method comprises that when all signals are normal, the three signals Y1, Y2 and Y3 are used for redundancy monitoring and determining, and the signal Y4 serves as a standby signal; when the signals Y1, Y2 and Y3 are all normal, a determining value YO of the signals Y1, Y2 and Y3 to monitor the signal Y4 and determine whether the signal Y4 is normal; and when abnormity is found in the signals Y1, Y2 and Y3, the standby signal Y4 is used to assist in determination of an abnormal signal, and a fault is thus confirmed. The method of the invention remains the efficacy of the four redundancy signals, and a four redundancy monitoring-determining strategy is simplified when the system signals are normal.

The invention discloses a correction method of angle inclination of a linear array camera. The method comprises the following steps: (1) scanning a correction plate by the linear array camera to detect boundary points of object areas on the correction plate; (2) fitting central point linear equations of each boundary point; (3) correcting an inclination angle of the linear array camera along a scanning direction according to an inclination degree of a straight line of the central points; and (4) calculating a length of a longest line of the object areas, and correcting the inclination angle of a scanning surface of the correction camera. The technical scheme is beneficial in that only the correction plate needs to be scanned, correction is carried out through the scanning results, and thus operation is simple, processing algorithm is simple, correction results are good in stability, and precision is high.

A method for numbering working services on a channel protection ring includes allocating an identifier to each node on the protection ring, and specifying a direction on the protection ring. The process of numbering working services includes: after detecting that the node has an added or dropped working service in the downstream segment in the specified direction, the node on the ring sends a notification message which includes the identifier corresponding to the node to the downstream node in the specified direction; after receiving the notification message and detcting that the node has an added or dropped working service in the downstream segment in the reverse direction of the specified direction, the node on the ring assigns a serial number to the working service according to the identifier in the notification message. The present invention enables automatic numbering of services and dynamic adjustment of the service numbers on the ODUk protection ring, and fulfills the requirements of ODUk protection switching.

In a method for alerting to the wear of a tyre that includes a tread strip equipped with at least one circumferential groove, the running noise made by the tyre running along a ground is measured, from the measured running noise, a noise emitted in a predetermined range of frequencies close to a predetermined resonant frequency of a portion of the circumferential groove during running is isolated, the amplitude of the isolated noise is measured, and the measured amplitude is compared against a predetermined alert threshold.

The invention discloses a novel alternative incremental sensor for measuring the micrometric displacement. The novel alternative incremental sensor comprises a laser beam, a fixed reflecting mirror, a movable reflecting mirror, a detection reflecting mirror, a photoelectric detector I, a photoelectric detector II and a processing system. In operation of the sensor, the laser beam is continuously reflected to the reflecting mirrors in the fixed reflecting mirror and the movable reflecting mirror which are parallel, and finally irradiates onto the two groups of photoelectric detectors, and the reflecting path of the laser beam can be changed when the distance between the fixed reflecting mirror and the movable reflecting mirror is changed; the laser beam is induced for multiple times by three detection parts on each group of photoelectric detector, the processing system obtains a detection distance value according to the laser-beam induction times and the laser induction sequence of each group of detection parts and the distance processing among the detection parts, and then can calculate out a real change value of the distance between the fixed reflecting mirror and the mobile reflecting mirror by the detection distance value; the novel alternative incremental sensor is simple in structure, reliable in measurement, higher in accuracy and easy in implementation of batch manufacture.

The invention discloses an asynchronous network application program processing method. The method includes: establishing multiple threads, wherein each thread has a same operating logic; obtaining a global lock by one of the threads to obtain processing right to event queues; inquiring a to-be-processed event queue by the thread having the event queue processing right, and when to-be-processed events exist in the to-be-processed event queue, reading a to-be-processed event by the thread for processing the to-be-processed event; and when the to-be-processed event queue has no to-be-processed events, monitoring an event list by the thread, and when events are monitored by the thread, adding the events into the to-be-processed event queue. By establishing multiple equivalent threads and lock competing logics to the global lock among the multiple threads, compactness and efficiency in management of the multiple threads are realized, and software and hardware resources are saved; and by performing timeout processing through a compact thread model, a lightweight timer mechanism and a safe and efficient asynchronous information mechanism are realized.

The invention discloses a method for identifying visible foreign matter in bottled oral liquid. Firstly, binary processing is performed on the preprocessed image, and the oral liquid is divided into upper and lower regions, and the imaging areas of the upper and lower regions are respectively S, perimeter C, and the minimum aspect ratio N of the circumscribed matrix set the threshold value, and judge whether there are visible foreign objects in the upper and lower regions according to the relationship between the parameters and the threshold value. This method has high accuracy and good stability, and solves the problem of relying on a single parameter. Recognition of foreign objects can easily lead to misidentification problems. Partition detection can not only effectively detect impurities such as plant fibers, residues, and hairs, but also correctly detect impurities such as glass slag that are small in size, have a certain quality, and move irregularly, which can effectively eliminate them. Interference of air bubbles; the identification method of visible foreign matter in bottled oral liquid of the present invention has low equipment cost, simple and efficient processing algorithm, rich and diverse types of detectable impurities, and can adapt to the requirements of on-line production.