Today, I will introduce a national invention authorized patent-an electric meter with redundant bus frame. The patent was applied for by Jiangsu Weineng Low Carbon Co., Ltd., and the authorization was announced on March 8, 2017.
Content descriptionThe utility model relates to the technical field of electric meter equipment, in particular to an electric meter with a redundant bus frame.
Background of the inventionThe earliest electric energy meters (also known as electric meters) were made in 1881 based on the principle of electrolysis. Although this type of electric energy meter weighed tens of kilograms each, was very heavy and had no guarantee of accuracy, it was still regarded as the scientific and technological circle at that time. A major invention was valued and praised by people, and it was quickly adopted in engineering. With the development of science and technology, the discovery and application of alternating current in 1888 put forward new requirements for the development of electric energy meters. Through the efforts of scientists, the induction type electric energy meter was born. Because the induction type electric energy meter has a series of advantages such as simple structure, safe operation, low price, durability, and easy maintenance and mass production, it has developed rapidly, but the traditional electric meter is not enough. Automation is not convenient enough.
Summary of the inventionThe purpose of the present invention is to provide an electric meter with a redundant bus frame to solve the above-mentioned problems in the background art.
In order to achieve the above objectives, the present invention provides the following technical solutions: an electric meter with a redundant bus frame, comprising a casing, a working body, a power unit and a controller, a working indicator light is installed on one side of the casing, so A power unit is installed at the bottom of one end of the casing, and a PLC electric control unit is installed on the upper end of the power unit. The power unit is connected to the controller through the PLC electric control unit. A data processor is installed at the lower right of the controller. A noise reduction layer is installed at the inner and outer end of the casing, a sensor is installed at the upper end of the casing, a reading dial is installed under the sensor, and a force transmission rod is installed at the lower right end of the reading dial, and the force transmission rod is lower left A working body is installed on the side, and the working body includes a winding wire, a magnet tube, and a base. One end of the base is equipped with a winding wire, one side of the winding wire is equipped with a magnet tube, and a dial pointer is installed under the working body. A dial baffle is installed at the lower end of the dial pointer, and a brake is installed on one side of the dial baffle.
Preferably, the brake includes a connecting rod, a driving wheel and a braking wheel. A driving wheel is installed at the lower end of the connecting rod. A brake wheel is installed at the right end of the driving wheel. An IC sensor is installed at the lower right end of the brake.
Compared with the prior art, the beneficial effects of the utility model are: the utility model has a scientific and reasonable structure, is convenient and efficient to use, can conveniently control the machine, is equipped with an engine, can provide power for the entire machine, and is equipped with a working body. It can reduce manual operations and reach the level of automatic intelligence. It is equipped with a data processor, which can process data from other devices, and can also process instructions sent by users. It is equipped with a brake to control electricity, which is convenient for implementation. For the purpose of operation, a working indicator is installed, which can give an alarm when the device is in an abnormal state, and can automatically shut down the device when appropriate.
Signal
Response time refers to the response speed of the Liquid Crystal Display to the input signal, that is, the response time of the liquid crystal from dark to bright or from bright to dark (the time for the brightness from 10%-->90% or 90%-->10%) , Usually in milliseconds (ms). To make this clear, we have to start with the human eye's perception of dynamic images. There is a phenomenon of "visual residue" in the human eye, and the high-speed motion picture will form a short-term impression in the human brain. Animations, movies, etc. to the latest games have applied the principle of visual residue, allowing a series of gradual images to be displayed in rapid succession in front of people's eyes to form dynamic images. The acceptable display speed of the picture is generally 24 frames per second, which is the origin of the movie playback speed of 24 frames per second. If the display speed is lower than this standard, people will obviously feel the picture pause and discomfort. Calculated according to this index, the display time of each picture needs to be less than 40ms. In this way, for the liquid crystal display, the response time of 40ms becomes a hurdle, and the display above 40ms will have obvious picture flicker, which makes people feel dizzy. If you want the image screen to reach the level of non-flicker, it is best to achieve a speed of 60 frames per second.
I used a very simple formula to calculate the number of frames per second under the corresponding response time as follows:
Response time 30ms=1/0.030=approximately 33 frames per second
Response time 25ms=1/0.025=approximately 40 frames per second
Response time 16ms=1/0.016=approximately 63 frames per second
Response time 12ms=1/0.012=approximately 83 frames of pictures displayed per second
Response time 8ms=1/0.008=approximately 125 frames per second
Response time 4ms=1/0.004=approximately 250 frames per second
Response time 3ms=1/0.003=approximately display 333 frames per second
Response time 2ms=1/0.002=approximately 500 frames per second
Response time 1ms=1/0.001=approximately 1000 frames per second
Tip: Through the above content, we understand the relationship between response time and the number of frames. From this, the response time is as short as possible. At that time, when the LCD market first started, the lowest acceptable range of response time was 35ms, mainly products represented by EIZO. Later, BenQ's FP series came out to 25ms. From 33 to 40 frames, it was basically undetectable, and it was really quality. The change is 16ms, displaying 63 frames per second to meet the requirements of movies and general games, so 16ms is not obsolete. With the improvement of panel technology, BenQ and ViewSonic started a speed battle. ViewSonic started from 8ms to 4ms. Released to 1ms, it can be said that 1ms is the final controversy of LCD speed. For game enthusiasts, 1ms faster means that CS's marksmanship will be more accurate, at least psychologically, such customers should recommend the VX series of monitors. But everyone should pay attention to the grayscale response when selling. The text difference in full-color response may sometimes mean the same thing as gray-scale 8ms and full-color 5ms. It is the same as when we sold CRTs before, we said that the dot pitch is .28, LG just I have to say that he is .21, but the horizontal dot pitch is ignored. In fact, the two are talking about the same thing. LG has come up with a sharpness of 1600:1. This is also a conceptual hype. Everyone uses the basic screen. There are only a few companies on the list, and how can only the LG family achieve 1600:1, and everyone stays at the level of 450:1? When it comes to consumers, the meaning of sharpness and contrast is obvious, just like AMD's PR value, which has no real meaning.
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