35results about How to "Guaranteed reading accuracy" patented technology

The invention discloses an anti-interference electromagnetic-current-transformer-contained intelligent electric meter with the characteristic of rapid mounting and dismounting. A current transformer cavity is arranged inside a meter housing; and a plugging port is formed in the side of the current transformer cavity. An integrated current transformer is arranged in the current transformer cavity; leading-out terminals of wiring switches are connected with a conductor wire arranged inside the integrated current transformer and the other end of the conductor wire is connected with a relay. The integrated current transformer includes a heat-radiating shielding box; current transformer units are arranged in the heat-radiating shielding box uniformly; two wiring terminals of the current transformer units are connected fine elastic contacts connected with a reading mechanism; coarse elastic contacts are arranged at the two ends of the conductor wire; the fine elastic contacts and the coarse elastic contacts are arranged on the bottom surface of the heat-radiating shielding box uniformly; and sliding sides arranged at the two sides of the heat-radiating shielding box. With the electric meter, the interference on the electric meter reading number by an external magnetic field can be effectively prevented; the assembling speed and maintenance speed of the electric meter can be substantially improved; and the current transformer in the electric meter can be replaced and used repeatedly, so that the service life of the electric meter is prolonged.

The invention discloses a reading recognition method of a mechanical pointer pressure gauge. After image filtering and binarization processing, the center coordinates of the instrument dial are obtained through two times of Hough transformation. After the contour of the dial is extracted, the contour coordinate group is carried out. Polar coordinate transformation, and then take the center coordinates of the instrument dial as the center of the circle, perform scale search and recognition, obtain the dial scale area, and perform scale calibration in the scale recognition result area, obtain the calibrated two-dimensional vector about the angle and scale, and solve the scale recognition problem Convert to a two-dimensional vector to deal with the problem, and then construct a standard scale vector to calculate the distance between the two-dimensional recognition vector of the angle and the scale and the standard scale vector. At the minimum value of the distance between the two vectors, it is the start and end positions of the standard scale. And the pointer position is obtained by obtaining the minimum value of the average gray value of the inner ring of the scale ring; the advantage is to realize the automatic identification of the reading of the mechanical pointer pressure gauge and ensure the accuracy of the reading.

The invention discloses a spirit level for power transmission line n-shaped rod construction. The spirit level for power transmission line n-shaped rod construction comprises a span measuring ruler used for measuring the horizontal distance between two rod pits of an n-shaped rod and two depth measuring rulers arranged on the end portions of the span measuring ruler respectively. The span measuring ruler comprises a ruler sleeve and a telescopic ruler core sleeved inside the ruler sleeve. The outer surface of the ruler core is provided with a scale. A level gauge is arranged on the outer surface of the ruler sleeve. The depth measuring ruler comprises a lower ruler and a telescopic upper ruler sleeved inside the lower ruler. The outer surface of the upper ruler is provided with a scale. The spirit level for power transmission line n-shaped rod construction is convenient to use and capable of directly measuring the horizontal distance between the two rod pits and the perpendicular distance between the bottom faces of the two rod pits, offering instructive parameters for n-shaped rod construction, omitting a large number of calculation processes and improving the construction efficiency to a large extent. In addition, the spirit level for power transmission line n-shaped rod construction further has the advantages of being small in error, easy to transport and store and the like.

The invention relates to the technical field of weighing and packaging, in particular to a sensor weighing module used in an automatic production line. The present invention includes a base, a beam sensor and a load-bearing plate. This module also includes support columns for supporting the load-bearing plate. The support columns are at least two symmetrically located at both ends of the load-bearing plate along the center line; One of the opposing surfaces of the supporting pillar and the load-bearing plate is provided with a spherical matching part, and the matching part of the other surface of the above-mentioned opposing surface is arranged with a hemispherical spherical groove that matches each other; in the vertical direction , the distance between the spherical groove and the spherical matching part is equal to the set pressure subsidence height of the bearing plate. The present invention can not only meet the requirement of weighing accuracy, but also reflect its better working flexibility and flexibility. At the same time, the fault tolerance rate is higher, the installation accuracy requirement is lower, and the working reliability and even the service life can be further improved. .

Disclosed are a data processing method and apparatus. A processing device reads data blocks from a read data block queue; generates confirmation objects that are in a one-to-one association relationship with the data blocks, the confirmation objects being used for recording confirmation states of the data blocks having the association relationship; and establishes a confirmation queue comprising N confirmation objects, and executes persistent operations on the read and confirmed data blocks according to the confirmation states of the confirmation objects in the confirmation queue. Accordingly, the processing device determines, according to the confirmation states of the confirmation objects in the confirmation queue and the arrangement order of the confirmation queue, a previous data block of a data block whose confirmation state is unconfirmed and that is early read by the processing device, and it is not required to perform persistent operations on each data block that is read and confirmed, thereby reducing the processing pressure of persistent services in the case in which the data read precision is ensured.

The invention discloses a method for automatically interpreting slowly changing parameters of telemetry based on statistical characteristics of historical data, comprising: 1 constructing a database of historical models; 2 interpreting parameters according to; 3 unifying sampling points of valid data segments of parameter historical data to valid data of target data 4. Estimate the target data of the parameter; 5. Estimate the standard deviation of the parameter; 6. Divide the distribution of the target data into four intervals according to the estimation and standard deviation of the parameter target data: 0~1σ, 1σ~2σ, 2σ~3σ, 3σ~∞; 7 Statistical parameter target data probability distribution in each interval; 8 Potential abnormal parameter table obtained; 9 Potential abnormal parameter table obtained by artificial experts based on the above steps and obtained by analysis The auxiliary decision diagram checks the potential abnormal parameters one by one, and finally determines the abnormal parameters of telemetry during the flight. The invention overcomes the disadvantages of low manual interpretation efficiency and low data utilization rate, and saves a lot of manpower for the test process of the launch vehicle and the aircraft.

The invention relates to the technical field of vehicle lamps, in particular to a convenient-to-detect lens module which comprises a bottom frame, a supporting frame installed on the upper end face of the bottom frame and a display screen installed on the supporting frame, the upper end face of the supporting frame is fixedly connected with an outer frame, and a covering plate is rotationally connected into the outer frame; a supporting plate is hinged to the bottom end face of the covering plate; the supporting plate is kept horizontal through a stabilizing part; the covering plate can cover the display screen, so that the covering plate can block stains, the display screen is further protected, the reading accuracy of the display screen is guaranteed, the detection accuracy is further improved, and at the moment, the supporting plate is transversely arranged below the covering plate, and the supporting plate is hidden between the covering plate and the display screen; the covering plate can be stored in the outer frame, at the moment, the supporting plate is transversely arranged above the display screen and is in an exposed state, at the moment, the supporting plate is suitable for containing tools such as cleaning rag, and then the effect of rapidly cleaning the display screen can be achieved.

The present invention relates to the technical field of vehicle lamps, in particular to a detection device for the torque of a dimming motor for a lens module, comprising: a bottom frame, a support frame installed on the upper end surface of the bottom frame, and a The upper surface of the support frame is fixedly connected with an outer frame, and the outer frame is rotatably connected with a cover plate; the bottom end surface of the cover plate is hinged with a support plate; the support plate is kept horizontal through a stabilizing part; the cover plate can be closed On the display screen, so that the cover plate can block the stains, and then protect the display screen, so as to ensure the accuracy of the reading of the display screen and further improve the detection accuracy. At this time, the support plate is horizontal under the cover plate, and the support plate Hidden between the cover board and the display screen; the cover board can be stored in the outer frame, at this time the support board is horizontally above the display screen, and is in an exposed state. At this time, the support board is suitable for placing tools, such as cleaning rags, etc., and then can Quickly cleans the display.

The invention discloses a reference current obtaining circuit, a read-only memory and an electronic device. The reference current obtaining circuit comprises a current mirror circuit, a switch circuit, a pull-down circuit and a pulse generation circuit, wherein the current mirror circuit is suitable for outputting a reference current according to the reference current, and comprises at least one current input branch and at least one current output branch; the at least one current input branch and the at least one current output branch are connected at a reference node; the reference current is input to the first end of the switch circuit; the second end of the switch circuit is connected with the at least one current input branch; a chip selection signal is input to the control end of the switch circuit; the chip selection signal controls the reference current to flow into the at least one current input branch; the pull-down circuit provides a discharge path to ground for the reference node; and the pulse generation circuit is suitable to control the discharge path to be switched on under the edge triggering of the chip selection signal in a preset power-on time according to the chip selection signal and to control the discharge path to be always kept switched off after the preset power-on time. The problem that the reference current provided for a sensitive amplifier in the read-only memory is instable can be solved.