CN112185094A

CN112185094A - Wireless meter reading device suitable for ground well pit

Info

Publication number: CN112185094A
Application number: CN202011052431.4A
Authority: CN
Inventors: 邓旭东
Original assignee: Yunnan Zhuoshuo Technology Co ltd
Current assignee: Yunnan Zhuoshuo Technology Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-01-05

Abstract

The invention relates to a wireless meter reading device suitable for a ground pit, which comprises a concentrator, a meter reading device and a control device, wherein the concentrator is arranged at a high position where water is not soaked for a long time; the reading and writing coil is connected with the concentrator through an extension line; at least one remote water meter is positioned at the bottom of the meter well pit and is used for getting electricity and communicating from a reading and writing coil close to the remote water meter in a wireless mode. The invention has the advantages that the electricity and the communication are realized in a wireless mode, and the water meter has no external interface, thereby being beneficial to waterproof sealing. The short-distance wireless power supply and communication can work reliably in water. The remote communication component can be installed at a position with good signal selection and easy maintenance.

Description

Wireless meter reading device suitable for ground well pit

Technical Field

The invention relates to the field of water meters, in particular to a wireless meter reading device suitable for a ground pit.

Background

In old districts in northern China, water meters are generally arranged in meter well pits or semi-underground spaces, when rainy seasons come, the meter well pits can bubble water for several months, and huge pressure is brought to communication and battery replacement.

Disclosure of Invention

In view of the above, the present invention has been developed to provide a wireless meter reading apparatus for an adapted well that overcomes or at least partially solves the above-mentioned problems.

According to one aspect of the invention, a wireless meter reading device adaptive to an underground pit is provided, which comprises a concentrator, a wireless meter reading device and a control device, wherein the concentrator is arranged at a high position where water does not bubble for a long time; the reading and writing coil is connected with the concentrator through an extension line; at least one remote water meter is positioned at the bottom of the meter well pit and is used for getting electricity and communicating from a reading and writing coil close to the remote water meter in a wireless mode.

In a possible embodiment, the concentrator is mounted on or in the surface pit near the well lid.

In one possible embodiment, the concentrator includes a battery, a narrowband internet of things module, a host coil drive circuit, and a microcontroller.

In one possible embodiment, the remote water meter includes a meter sensor, a slave coil drive circuit, and a microcontroller.

In one possible embodiment, the read-write coil is wound from a waterproof wire.

The invention has the beneficial effects that:

(1) get electricity and communication with wireless mode, the water gauge does not have external interface, does benefit to waterproof sealing.

(2) The short-distance wireless power supply and communication can work reliably in water.

(3) The remote communication component can be installed at a position with good signal selection and easy maintenance.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a wireless meter reading device adapted to an earth pit according to an embodiment of the present invention;

FIG. 2 is a schematic view of FIG. 1 from another perspective;

FIG. 3 is a schematic diagram of the connection of the concentrator and the read-write coil;

fig. 4 is a schematic structural diagram of a read-write coil according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a remote water meter according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a host coil driving circuit adopted by a concentrator according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a slave coil driving circuit adopted by a remote water meter according to an embodiment of the present invention;

description of reference numerals:

1-concentrator, 2-remote water meter, 3-read-write coil.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The terms "comprises" and "comprising," and any variations thereof, in the present description and claims and drawings are intended to cover a non-exclusive inclusion, such as a list of steps or elements.

The technical solution of the present invention is further described in detail with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 5, an embodiment of the present invention provides a wireless meter reading device adapted to an underground pit, including:

a concentrator 1 installed at a high place where water is not soaked for a long time so as to connect to an operator network;

the reading and writing coil 3 is connected with the concentrator 1 through an extension line;

at least one remote water meter 2 is positioned at the bottom of the meter well pit and wirelessly gets electricity and communicates from a reading and writing coil 3 close to the remote water meter.

In one example, the concentrator 1 is mounted on or within a manhole cover of a surface pit in a position close to the manhole cover.

In a meter well pit for installing water meters in a centralized manner, a remote water meter 2 obtains electricity from a concentrator 1 in a wireless manner through a reading-writing coil 3 and communicates with the concentrator 1, and the concentrator 1 communicates with a data center through a telecommunication operator network. The data of the remote water meter 2 is communicated with the concentrator 1 through the read-write coil 3, and the concentrator 1 forwards the obtained data to a data center of a water supply company.

In one example, the concentrator 1 includes a battery, a narrowband internet of things (NB-iot) module, a host coil drive circuit, and a Microcontroller (MCU).

The host coil driving circuit has many implementation methods, one of which is illustrated in fig. 6, a Microcontroller (MCU) outputs 125KHz pulses as a carrier, and the transmission power is adjusted by the pulse width; transmitting data by ASK modulation carrier wave; receiving data in a load envelope manner; manchester encoding is used.

In one example, the remote water meter 2 includes a metering sensor, a slave coil drive circuit, and a Microcontroller (MCU), the master coil drive circuit is implemented in many ways, one of which is illustrated in fig. 7, power is taken from an LC resonant circuit; demodulating a 125KHz carrier to receive ASK data; transmitting data in a load envelope manner; manchester encoding is used.

In one example, the read-write coil 3 is wound from a waterproof wire.

In the invention, the concentrator with the battery is placed at a higher position in the meter well pit, so that the concentrator at the higher position can not be soaked in water even if rainfall is large and the concentrator is poured into the meter well pit for short-term soaking, and the remote water meter obtains electricity from the reading and writing coil 3 in a wireless mode and realizes communication with the concentrator.

The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A wireless meter reading device adapted for use with an earth borehole, comprising:

a concentrator (1) which is arranged at a high position where the water is not soaked for a long time;

the reading and writing coil (3) is connected with the concentrator (1) through an extension line;

at least one remote water meter (2) is positioned at the bottom of the meter well pit and is used for getting electricity and communicating in a wireless mode from a reading and writing coil (3) close to the remote water meter (2).

2. An adapted pit wireless meter reading device according to claim 1, where the concentrator (1) is mounted on or in the meter pit near the well lid.

3. An adapted pit wireless meter reading device according to claim 1, wherein the concentrator (1) comprises a battery, a narrow band internet of things module, a host coil drive circuit and a microcontroller.

4. An apparatus according to claim 1, wherein the remote water meter (2) comprises a metering sensor, a slave coil drive circuit and a microcontroller.

5. The wireless meter reading device for an adaptation pit according to claim 1, characterized in that the reading and writing coil (3) is wound by waterproof wire.