[Meter's latest patent] large-caliber electronic intelligent water meter

Content Description

The invention relates to an electronic smart water meter, in particular to a large-diameter electronic smart water meter.

Background of the invention

Currently, water meters are the main measurement tools for trade settlement between water supply companies and users, and they are also the main source of data for water analysis. According to statistics, in the water measurement system of water supply enterprises, the part of large metering accounts for a large part of the total water supply, especially in large and medium-sized cities and industrially developed areas, the proportion of large metering accounts for as much as 60%-80%. . Therefore, the management of large-diameter water meters is an important link for water companies to survive and develop. The level of their water meter management capacity determines the profitability of water companies. Therefore, they are highly concerned by water companies, but how to manage this problem is also always It plagues many water companies. The degree of intelligence of large-caliber water meters determines the management of water divisions.

In the remote electronic smart water meter, basically using photoelectric direct reading and video recording are two different remote meter reading technologies, each with advantages and disadvantages, but they are not related. During the application process, the camera technology can directly see the meter's mechanical reading picture in the management software. When there is a dispute about the reading, there is a basis for inspection; however, for the uploaded reading picture, how to convert into a reading, but The expenses are not satisfactory; mainly because the environment of the water meter and the character wheel turn with water, and there is no algorithm to recognize when the word wheel reads between the two. Photoelectric direct reading technology can remotely transmit meter readings. However, in existing large-diameter electronic smart water meters that use photoelectric direct reading, sometimes the reading of the meter is not accurate, and there is often controversy and it is necessary to check on the spot.

Summary of the Invention

The technical problem to be solved by the present invention is to avoid the disadvantages of the prior art and provide a large-diameter electronic intelligent water meter that adopts dual-photoelectric direct reading and video-type dual-technology processing, has high accuracy of meter reading, does not require on-site verification, and saves water supply. The company's management costs.

The technical problem solved by the present invention can be achieved by adopting the following technical solutions: designing and manufacturing a large-diameter electronic intelligent water meter, including a cover, a gear set mounted on the cover, a digital wheel set, and a photoelectric data sampling circuit board; An acquisition processing operation circuit board is also installed in the cover, and a micro camera is installed on the acquisition processing operation circuit board. The micro camera is aligned with the counter wheel of the water meter, and the micro camera is connected with the data processing circuit of the acquisition processing circuit. In the cylinder of the digital wheel set, there are light-transmitting slots in the axial direction, and each side of each wheel of the digital wheel set is provided with side plates. Each of the two side plates is equipped with several pairs of each other. The photoelectric sensors, the photoelectric sensors are all electrically connected to the photoelectric data sampling circuit board; the photoelectric data sampling circuit board is connected with the data of the acquisition and processing operation circuit board; and the acquisition and processing operation circuit board is connected with an external microcontroller and a memory The photoelectric sensor detects and encodes the digital wheel reading position, which is converted into a photoelectric data sampling circuit board. Electronic readings should be accurate, then the arithmetic circuit board through the acquisition and processing of digital data, and simultaneously realize an image output.

On the digital wheel set, the circular cylindrical surface of each character wheel is provided with ten digits of "0-9", each figure corresponds to a central angle of 36°, and the area of ​​each number corresponding to the central angle is divided into four. In equal parts, each aliquot corresponds to a central angle of 9°, which is divided into four spans of 0,25, 0,50, 0,75, and 1,00 on the span of the number "1", and the rest of the numbers are analogous; The light-transmitting trough is provided with three, all of which are fan-shaped. The span and position of the first light-transmitting trough are between 0.25-1.00, and the span and position of the second light-transmitting trough are 3.75-5.25. The interval and position between the third and the third light transmission slots are between 6.00-8.57, that is, four identification positions for each number produce three identification codes, the numbers X.25-X.50, X. 50-X .75 These two areas have the same identification code. X represents the number corresponding to the number of "0-9"; each side of the character wheel has five photoelectric sensors on each side, each side emitting, One side receives, that is, each word wheel corresponds to five pairs of photoelectric sensors; the five photoelectric sensors on the side panel have the same radius and uniform distribution of the spokes of the light transmission groove; when each character wheel rotates, the five photoelectric transmissions of the transmitting end Light is emitted, the light-transmitting grooves to face the three passes through to the corresponding position, and vice versa i.e. can not pass through, each word rotation circle, identification code 30 is generated.

A circuit board bracket and a transparent inner cover are also installed in the cover, and the acquisition and processing operation circuit board is mounted and fixed on the circuit board bracket. After the transparent inner cover and the circuit board bracket are engaged, a closed space is formed to collect and process the operation circuit board. In the confined space.

Compared with the prior art, the technical effects of the large-caliber electronic intelligent water meter of the present invention are as follows: 1. The meter reading method adopts photoelectric direct reading and video-type double insurance, which has high accuracy, does not require on-site verification, and saves the management cost of the water supply company; 2. The design of the light-transmitting groove in the word wheel set ensures the accuracy of the photoelectric direct-reading data.

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