Numerical code direct reader of intelligent meter

Abstract

The invention discloses a numerical code direct reader of an intelligent meter. The numerical code direct reader of the intelligent meter is accurate in sensing data, reliable in performance, simple in manufacturing technology and low in cost. The numerical code direct reader of the intelligent meter comprises a character wheel box (1), a character wheel assembly (2), a carry-bit cone assembly (3) and a photoelectric module (4), wherein the character wheel assembly (2) comprises a character wheel shaft (20) and a plurality of character wheels (21), the numbers from 0 to 9 are evenly distributed on the wheel face of each character wheel (21) in the circumferential direction, the wheel face of each character wheel (21) is provided with reflecting surfaces which comprise white reflecting surfaces and black reflecting surfaces, the areas of the reflecting surfaces correspond to the positions of the numbers on the wheel face of each character wheel (21), the photoelectric module (4) comprises a plurality of photoelectric sensors (43), each photoelectric sensor (43) is arranged corresponding to each character wheel (21), and encodes the position of each character wheel (21) through changes of light, reflected back by the wheel face of each character wheel (21), of emitted light, a code is compared with a preset coding table, the position of each character wheel (21) is determined, and reading information of the character wheel assembly (2) can be obtained. The numerical code direct reader of the intelligent meter can be widely applied to the field of intelligent meters.

Description

technical field [0001] The invention relates to a digital direct reader of an intelligent measuring instrument. Background technique [0002] With the development of urban intelligence and the popularization of the Internet of Things, there are now smart water meters, smart electricity meters, smart gas meters and smart heating meters that can transmit data remotely and realize remote control. This type of smart metering instrument requires a numerical collector with the function of displaying data, and can convert the displayed data into digital signals, and then transmit the data signals far away. [0003] The Chinese patent application number is 201110274440.2, which discloses a direct-reading water meter, which includes a digital wheel, a housing, and a carry wheel. The carry wheel is installed on the bottom or side of the digital wheel, and each digital wheel is inlaid or Coated with the material corresponding to the sensor, install 2 to 3 sensors to identify the digit...

AI Technical Summary

Problems solved by technology

The direct-reading water meter counter has the following disadvantages and shortcomings: the various colors painted have a decay cycle, which changes with time, and the various colors painted are easy to fall off after soaking in the liquid for a long time, thus affecting data collection. Accuracy; in addition, to paint a variety of colors on the word wheel, the process is complicated and the manufacturing cost is high

The water meter character wheel box uses two sets of photoelectric module circuit boards, which must be arranged perpendicular to each other, which makes the process difficult and increases the cost

Images