CN211346923U

CN211346923U - Self-powered fluid meter of thing networking

Info

Publication number: CN211346923U
Application number: CN201922275099.7U
Authority: CN
Inventors: 陶青秋
Original assignee: Beijing Topsky Information Technology Co ltd
Current assignee: Beijing Topsky Information Technology Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-08-25
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a thing networking self-power fluid measurement appearance, including the turbogenerator who makes the fluid pass through, the rectifier is connected to the turbogenerator electricity, the rectifier passes through controllable switch and connects microcontroller, the external wireless transceiver of microcontroller pass with wireless outward. The voltage regulator is connected with the voltage regulator through the controllable switch, and the rechargeable battery is connected with the voltage regulator through the charging circuit. The utility model discloses thing networking self-power fluid meter. The turbine generator is used as a flow measurement sensor and a generator at the same time, so that the complexity of equipment and the cost can be reduced; the size of the turbine generator can be changed to adapt to pipelines with different diameters; the online calibration may be done by a remote update algorithm. Finally, the turbine generator obtains the flow rate by measuring the mechanical rotating speed of the turbine, the application range is wide, and both liquid and gas can be measured.

Description

Self-powered fluid meter of thing networking

Technical Field

The utility model belongs to the measuring equipment field, concretely relates to thing networking self-power fluid meter.

Background

The fluid meter is a new meter which utilizes modern microelectronic technique and modern sensing technique to measure the flow of fluid and transmit the data of consumption and settle the transaction, and can be used for measuring the fluid of water, gas, gasoline, milk, etc. Compared with the traditional fluid meter which only has the functions of flow acquisition and dosage display of a mechanical pointer, the fluid meter has great improvement.

The fluid meter can record and electronically display the usage amount, can control the usage amount according to convention, automatically complete step cost calculation, and simultaneously can perform a function of using data storage. However, because the general installation position of the fluid meter is remote or the fluid meter cannot be externally connected with a power supply due to safety consideration, the fluid meter is powered by an internal battery, when the electric energy of the battery is exhausted, the valve of the fluid meter can be automatically cut off, and a user needs to detach the fluid meter to replace the fluid meter or replace the battery to solve the problem. And along with the development of the Internet of things, the meter is remotely read and the control requirement is met, frequent data acquisition needs electric quantity support, the use time of the electric quantity of the battery is correspondingly reduced, and the operation and maintenance cost is increased by replacing the battery.

Disclosure of Invention

The utility model aims at the above problem, provide a fluid meter based on thing networking is from charging, reduce the user to fluid meter's maintenance, guarantee the stability of table meter equipment operation.

In order to realize the purpose, the technical scheme of the utility model is that:

the utility model provides a thing networking self-power fluid strapping table, includes the turbine generator that makes the fluid pass through, the rectifier is connected to the turbine generator electricity, the rectifier passes through controllable switch and connects microcontroller, the external wireless transceiver of microcontroller pass through with wireless biography outward.

As an improvement on the above technical scheme, the self-powered fluid meter for internet of things further comprises a voltage regulator and a rechargeable battery connected with the voltage regulator through a charging circuit, and the voltage regulator is connected with the voltage regulator through a controllable switch.

As an improvement to the above technical solution, the turbine generator is a three-phase voltage generator; the stator of the turbine generator has three sets of coils as phase voltage outputs, and the other ends of the three-phase coils are connected together as a neutral point.

As an improvement to the above technical solution, the turbine generator employs a single jet impeller turbine; the single jet impeller turbine has a fixed throttle point angle.

As an improvement to the above technical solution, the wireless transceiver is an NB-IoT communication module; the controllable switch is a programmable single-pole double-throw Switch (SPDT).

As an improvement to the above technical solution, the rectifier employs a Metal Oxide Semiconductor Field Effect Transistor (MOSFET).

According to faraday's law of induction, the induced voltage is proportional to the number of turns of the coil and the rate of change of magnetic flux through the single loop. The turbine rotation speed greatly influences the voltage generated by the generator, the higher the rotation speed is, the higher the generated voltage is, the higher the fluid flow speed is, the higher the turbine rotation speed is, tests prove that the generated voltage is in direct proportion to the fluid flow speed, a proportionality coefficient of the flow speed and the voltage is obtained through tests, the fluid flow speed can be measured through measuring the voltage value generated by the turbine, and the flow is further calculated.

Compared with the prior art, the utility model has the advantages and positive effect be:

the utility model discloses thing networking self-power fluid meter. The turbine generator is used as a flow measurement sensor and a generator at the same time, so that the complexity of equipment and the cost can be reduced; the size of the turbine generator can be changed to adapt to pipelines with different diameters; the online calibration may be done by a remote update algorithm. Finally, the turbine generator obtains the flow rate by measuring the mechanical rotating speed of the turbine, the application range is wide, and both liquid and gas can be measured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic block diagram of the circuit connection of the present invention;

FIG. 2 is a schematic diagram of a turbine generator and associated circuitry of the present invention;

fig. 3 is a schematic circuit diagram of the charging circuit of the present invention;

fig. 4 is a schematic circuit diagram of the microcontroller according to the present invention;

fig. 5 is a schematic view of the structure of the throttling point of the impeller turbine of the turbine generator according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by a person of ordinary skill in the art without creative efforts shall be included in the protection scope of the present invention.

As shown in fig. 1 to 5, an internet of things self-powered fluid meter includes a turbine generator for allowing fluid to pass through, the turbine generator is electrically connected to a rectifier, the rectifier is connected to a microcontroller through a controllable switch, and the microcontroller is externally connected with a wireless transceiver for wireless transmission. The turbine generator serves two purposes: (1) sensing a flow rate by signal processing the generated voltage; (2) the generated electric energy charges the battery so as to ensure that the fluid meter can normally work for a long time. As the fluid passes through the turbine generator, the turbine generator generates a voltage signal that is passed through a rectifier to a programmable Single Pole Double Throw (SPDT) switch, which is connected to a microcontroller, through which sampling and flow rate calculations are performed.

In this embodiment, the self-powered fluid meter for internet of things further includes a voltage regulator and a rechargeable battery connected to the voltage regulator through a charging circuit, and the voltage regulator is connected to the whole hydraulic pressure device through a controllable switch. The voltage signal is transmitted to the voltage regulator and then transmitted to the charging circuit to charge the battery; the microcontroller is powered by a rechargeable battery. After the rechargeable battery is fully charged, the microcontroller controls a programmable single-pole double-throw (SPDT) switch to cut off the connection between the rechargeable battery and the charging circuit; the microcontroller finally transmits the real-time flow information to a remote service platform through the wireless transceiver; meanwhile, the microcontroller can control the liquid flow meter to enter a sleep mode so as to save energy.

In this embodiment, the turbine generator is a three-phase voltage generator; the stator of the turbine generator has three sets of coils as phase voltage outputs, and the other ends of the three-phase coils are connected together as a neutral point. The turbine generator mainly comprises two parts, namely a magnetic pole rotor and a coil stator, wherein the magnetic pole rotor and the coil stator are sealed in a shell. The magnetic pole rotor has one magnetic rod in the center, and magnetic field around the magnetic rod makes the magnetic rod in balanced stress state to suspend inside the bearing.

In the embodiment, the turbine generator adopts a single-jet impeller turbine; the single jet impeller turbine has a fixed throttle point angle. The throttle point is designed at a fixed angle, which allows the fluid to be easily captured by the blades of the turbine, which maximizes the conversion to kinetic energy with maximum contact time.

In this embodiment, the wireless transceiver is an NB-IoT communication module; the controllable switch is a programmable single-pole double-throw Switch (SPDT). The NB-IoT technology has the characteristics of wide coverage, high reliability, high safety, low cost, low power consumption and the like, and can remotely monitor the meter through a mobile phone application program APP.

In the present embodiment, the rectifier employs a Metal Oxide Semiconductor Field Effect Transistor (MOSFET). (MOSFET) with fast switching times and low cost.

It is not disclosed herein that all electronic components are mounted on a PCB board, and the layout of the PCB, the digital part, is separated from the analog power supply part to ensure signal quality. And simultaneously, a shell is designed to assemble the components of the watch, the components of the turbine generator are clamped by two fixers, the turbine generator is provided with a PCB slot bracket for the spine reinforcing plate, and meanwhile, the waterproof treatment of the PCB is well performed. Since these technical features are not strongly related to the present application, the description is omitted here.

Claims

1. An thing networking self-power supply fluid gauge table which characterized in that: the device comprises a turbine generator enabling fluid to pass through, wherein the turbine generator is electrically connected with a rectifier, the rectifier is connected with a microcontroller through a controllable switch, and the microcontroller is externally connected with a wireless transceiver for wireless external transmission.

2. The internet of things self-powered fluid meter of claim 1, wherein: the self-powered fluid meter of the Internet of things further comprises a voltage regulator and a rechargeable battery connected with the voltage regulator through a charging circuit, and the voltage regulator is connected with the whole hydraulic press through a controllable switch.

3. The internet of things self-powered fluid meter of claim 2, wherein: the turbine generator is a three-phase voltage generator; the stator of the turbine generator has three sets of coils as phase voltage outputs, and the other ends of the three-phase coils are connected together as a neutral point.

4. The internet of things self-powered fluid meter as recited in claim 3, wherein: the turbine generator adopts a single-jet impeller turbine; the single jet impeller turbine has a fixed throttle point angle.

5. The internet of things self-powered fluid meter of claim 4, wherein: the wireless transceiver is an NB-IoT communication module; the controllable switch is a programmable single-pole double-throw switch.

6. The internet of things self-powered fluid meter of claim 5, wherein: the rectifier adopts a metal oxide semiconductor field effect transistor.