CN215420596U - Flowmeter controller of Internet of things - Google Patents
Flowmeter controller of Internet of things Download PDFInfo
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- CN215420596U CN215420596U CN202121700144.XU CN202121700144U CN215420596U CN 215420596 U CN215420596 U CN 215420596U CN 202121700144 U CN202121700144 U CN 202121700144U CN 215420596 U CN215420596 U CN 215420596U
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Abstract
The utility model provides an internet of things flowmeter controller, which comprises: the system comprises a communication module, a controller, an Internet of things interface module and a valve control module; the communication module is in communication connection with the main control unit, is connected with an external flowmeter during use and is used for acquiring flow accumulative quantity signals and flow pulse signals of the external flowmeter; the main control unit is used for sending out a corresponding control signal according to the traffic cumulative quantity signal and the traffic pulse signal; the valve control module is in communication connection with the controller, is connected with the fluid channel when in use, and is used for receiving the control signal and controlling the opening and closing state of the fluid channel according to the control signal. The utility model provides an Internet of things flowmeter controller, which realizes remote control on the on-off of fluid in a fluid channel through a main control unit according to acquired signals of a flowmeter, and meets the requirements of users.
Description
Technical Field
The utility model relates to the technical field of control, in particular to a flowmeter controller of the Internet of things.
Background
Flow meters are commonly used to measure the flow of fluids, which may be gases, liquids, solids, in a pipe or open channel; the accumulated flow is the accumulated amount of the fluid flowing through the closed pipeline or the effective section of the open channel in a certain time interval; the metering has close relation with national economy, national defense construction and scientific research; the flowmeter has important effects on ensuring the product quality, improving the production efficiency and promoting the development of scientific technology, and particularly has more obvious status and effect in national economy and improvement of the signal acquisition efficiency of the flowmeter in the current times of energy crisis and increasingly high automation degree of industrial production.
In practical application, the current flow meter can only realize the metering of fluid, can not realize the remote control of the on-off of the fluid in a fluid channel, and can not meet the requirements of users.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides the flowmeter controller of the Internet of things, which can remotely control the on-off of the fluid in the fluid channel to meet the user requirements according to the acquired signal of the flowmeter.
An internet of things flow meter controller comprising: the system comprises a communication module, a main control unit, an Internet of things interface module and a valve control module; the communication module is in communication connection with the main control unit and is connected with an external flowmeter during use so as to obtain a flow accumulative quantity signal and a flow pulse signal of the external flowmeter and transmit the flow accumulative quantity signal and the flow pulse signal to the main control unit; the main control unit is used for sending out a corresponding control signal according to the traffic cumulative quantity signal and the traffic pulse signal; the valve control module is in communication connection with the main control unit, is also connected with the fluid channel when in use, and is used for controlling the opening and closing state of the fluid channel according to the control signal; the Internet of things interface module is in communication connection with the main control unit and is also connected with an external terminal when in use, so that the main control unit is communicated with the external terminal.
Optionally, the valve control module comprises: the valve control circuit is electrically connected with the electric control valve and is used for controlling the on-off state of the electric control valve.
Optionally, the valve control circuit comprises: the device comprises a first logic control circuit, a second logic control circuit, a first MOS (metal oxide semiconductor) transistor, a second MOS transistor, a third MOS transistor and a fourth MOS transistor; the first end of the first logic control circuit is connected with the first end of the main control unit; the second end of the second logic control circuit is connected with the second end of the main control unit; the grid electrode of the first MOS tube is connected with the second end of the first logic control circuit, the source electrode of the first MOS tube is connected with the positive electrode of the direct-current power supply end, and the drain electrode of the first MOS tube is connected with the first end of the electric control valve; the grid electrode of the second MOS tube is connected with the second end of the second logic control circuit, the source electrode of the second MOS tube is connected with the positive end of the direct-current power supply, and the drain electrode of the second MOS tube is connected with the second end of the electric control valve; the grid electrode of the third MOS tube is connected with the third end of the first logic control circuit, the drain electrode of the third MOS tube is connected with the drain electrode of the second MOS tube, and the source electrode of the third MOS tube is grounded; the grid electrode of the fourth MOS tube is connected with the third end of the second logic control circuit, the drain electrode of the fourth MOS tube is connected with the drain electrode of the third MOS tube, and the source electrode of the fourth MOS tube is grounded.
Optionally, the valve control circuit further includes a first capacitor, a first end of the first capacitor is connected to the first end of the electric control valve, a second end of the first capacitor is connected to the second end of the electric control valve, and the first capacitor is used for eliminating high frequency pulses and EMI protection.
Optionally, the internet of things interface module includes: NB-IOT, NFC, Cat.1, Wifi, Bluetooth, and/or infrared.
Optionally, the internet of things flowmeter controller further comprises a power module, and the power module comprises an internal direct current power supply module, an external direct current power supply module and a direct current output module.
Optionally, the internet of things flow meter controller further includes a memory, the memory is in communication connection with the main control unit, and the memory is used for storing data.
Optionally, the flow meter controller of the internet of things further comprises a display, which is in communication connection with the main control unit and is used for displaying the flow meter state signal, the valve switch state, the communication state, the user pre-stored flow and/or the user remaining amount.
Optionally, the flow meter controller of the internet of things further comprises a switch, connected to the main control unit, and configured to wake up a function, enable a function, and/or switch a state, where the switch is a key switch or a touch switch.
Optionally, the communication module includes a flowmeter data transmission unit, an alarm signal transmission unit, and a flow pulse signal transmission unit.
Compared with the prior art, the utility model has the following beneficial effects:
1. the flow accumulative quantity signal and the flow pulse signal of the flowmeter are obtained through the communication module, the main control unit controls the electric control valve through the control circuit according to the control signal, and then the on-off of the fluid channel is controlled, the on-off of the fluid is automatically and remotely controlled, and the control efficiency is improved.
2. The Internet of things interface module is adopted and is compatible with an Internet of things communication mode, data are uploaded to the terminal through various Internet of things communication modes, good compatibility is achieved, and the requirements of various users are met.
Drawings
Fig. 1 is a block diagram of an internet of things flow meter controller according to an embodiment of the present invention.
Fig. 2 is a valve control circuit diagram of an internet of things flow meter controller according to another embodiment of the utility model.
The reference numerals and components referred to in the drawings are as follows:
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the embodiments.
As shown in fig. 1, fig. 1 is a flow meter controller of the internet of things according to an embodiment of the present invention, including: the system comprises a communication module 3, a main control unit 1, an internet of things interface module 8 and a valve control module 4;
the communication module 3 is in communication connection with the main control unit 1, is connected with an external flowmeter during use, and is used for acquiring flow accumulative quantity signals, alarm signals and flow pulse signals of the external flowmeter. The communication module includes: the flow meter data transmission unit 31, the alarm signal transmission unit 32 and the flow pulse signal transmission unit 33 acquire the flow cumulative amount signal through the flow meter data transmission unit 31, acquire the alarm signal through the alarm signal transmission unit 32 and acquire the flow pulse signal through the flow pulse signal transmission unit 33. The main control unit 1 can be composed of N MCUs, an industrial personal computer mainboard and related device circuits.
The main control unit 1 can also obtain other data of the flow meter through the flow meter data transmission unit 33, and the flow meter data transmission unit can adopt an RS485/RS422 interface and transmit data according to a ModelBus protocol;
the external flowmeter actively sends a flow pulse signal to the main control unit 1, and each unit flow in the flowmeter sends a flow pulse signal, for example, one pulse represents 0.1 cubic meter of flow, and each 0.1 cubic meter of flow in the flowmeter sends a flow pulse signal outwards. After receiving the flow pulse signal, the main control unit 1 accumulates the data, calculates the flow accumulated amount, can be used to check whether the acquired flow accumulated amount signal is correct, and can also be used to acquire, accumulate and control the data of the flow meter data transmission unit 31 at two reading intervals. The flow accumulated quantity signal of the flowmeter acquired by the flowmeter data transmission unit 31 needs more energy, so that data are read normally at regular time or according to needs, high-frequency reading is avoided, if a built-in battery is adopted, the service life of the battery is not long, and the reading frequency can be improved only when external power supply is adopted; the flow pulse signal is acquired through the flow pulse signal transmission unit 33, the mode is low-power-consumption data acquisition, and the flow pulse signal can be input by interruption, so that ultra-low-power-consumption operation is realized.
The alarm signal transmission unit 32 is configured to obtain an alarm signal of the flowmeter, where the alarm signal is generally a pulse signal and may be input into a plurality of groups of alarm signals, and the main control unit 1 sends the received alarm signal to an alarm device, where the alarm device may be a leakage alarm. The alarm signal can be a low-voltage alarm signal or a leakage alarm signal of the flowmeter.
The main control unit 1 sends out corresponding control signals according to the received traffic cumulative quantity signals and the received traffic pulse signals;
the valve control module 4 is in communication connection with the main control unit 1, is connected with a fluid channel when in use, and is used for controlling the opening and closing state of the fluid channel according to the control signal; the valve control module 4 includes: the valve control circuit 41 and the electric control valve 42, the electric control valve 42 is installed on the fluid channel, the valve control circuit 41 is connected with the electric control valve 42, and the valve control circuit 41 is used for controlling the on-off state of the electric control valve 42.
The internet of things interface module 8 is in communication connection with the main control unit 1, and is also connected with an external terminal when in use, so that the main control unit 1 is communicated with the external terminal. The internet of things interface module 8 includes: NB-IOT, NFC, Cat.1, Wifi, Bluetooth, and/or infrared. Various signals of the flowmeter are uploaded to the background by adopting various internet of things communication modes, so that the flowmeter is monitored. The internet of things interface module 8 enables online data to be transmitted between the external terminal and the main control unit 1, data reporting and issuing, remote control and the like are achieved, the external terminal can be a mobile phone and other intelligent devices, and information of the internet of things flow meter controller can be directly read through an NFC, Bluetooth or WIFI external interface.
The flowmeter controller of the internet of things further comprises a power supply module 2, and the power supply module 2 comprises an internal direct current power supply module 21, an external direct current power supply module 22 and a direct current output module 23. The internal dc power supply module 21 has functions of supplying power to an internal battery and supplying power to an external battery, where the internal battery may be a lithium battery, and is usually a lithium iron phosphate battery, and the lithium battery is installed in the housing and is generally 3.6V-7.2V; the external battery can be an alkaline battery, a lithium battery, a nickel-metal hydride battery and other cylindrical batteries and is arranged outside the shell. The power supply of the external dc power supply module 22 is used for the dc power supply output of the meter, generally 8-24V, and has functions of EMI isolation, lightning protection, and the like. The direct current output module 23 provides direct current power output for the circuit, and can supply the direct current power output to other external devices for use, and output at a constant voltage, wherein the range of the output voltage value is 8-24V, and the magnitude of the voltage output value can be determined.
The flow meter controller of the internet of things further comprises a memory 5 which is in communication connection with the main control unit 1 and used for storing data. The memory 5 is an external memory chip for expanding the data memory space, and the memory chip can be a Flash memory, an F-RAM (Flash-random access memory) patch memory, and the like.
The internet of things flowmeter controller further comprises a display 6 which is in communication connection with the display 6 and used for displaying flowmeter state signals, valve switch states, communication states, user pre-stored flow and/or user residual amount. The display form can be various, including: segment code liquid crystal, dot matrix liquid crystal, LCD module or OLED module.
The flowmeter controller of the internet of things further comprises a switch 7, wherein the switch 7 is electrically connected with the main control unit 1 and used for function awakening, function enabling and/or state switching, and the switch 7 is a key switch or a touch switch.
As shown in fig. 2, fig. 2 is a valve control circuit diagram of an internet of things flow meter controller according to another embodiment of the present invention. The valve control circuit includes: the circuit comprises a first logic control circuit, a second logic control circuit, a first MOS tube Q1, a second MOS tube Q2, a third MOS tube Q3, a fourth MOS tube Q4 and a first capacitor C1;
the first end of the first logic control circuit is connected with the first end of the main control unit 1; the second end of the second logic control circuit is connected with the second end of the main control unit 1; the gate of the first MOS transistor Q1 is connected to the second end of the first logic control circuit, the source of the first MOS transistor Q1 is connected to the positive electrode of the dc power source VCC, and the drain of the first MOS transistor Q1 is connected to the first end of the electric control valve 42; the gate of the second MOS transistor Q2 is connected to the second end of the second logic control circuit, the source of the second MOS transistor Q2 is connected to the positive terminal VCC of the dc power supply, and the drain of the second MOS transistor Q2 is connected to the second end of the second electrically controlled valve 42; the grid electrode of the third MOS tube Q3 is connected with the third end of the first logic control circuit, the drain electrode of the third MOS tube Q3 is connected with the drain electrode of the second MOS tube Q2, and the source electrode of the third MOS tube Q3 is grounded; the gate of the fourth MOS transistor Q4 is connected to the third terminal of the second logic control circuit, the drain of the fourth MOS transistor Q4 is connected to the drain of the third MOS transistor Q3, and the source of the fourth MOS transistor Q4 is grounded. A first terminal of the first capacitor C1 is connected to a first terminal of the electrically controlled valve 42, a second terminal of the first capacitor C1 is connected to a second terminal of the electrically controlled valve 42, and the first capacitor C1 is used for eliminating high frequency pulses and EMI protection.
When the main control unit 1 sends a corresponding control signal according to the received flow cumulative amount signal and the flow pulse signal, the control signal may specifically be a pulse logic control signal, and when the sent control signal is to open the electric control valve 42, the first end of the main control unit 1 outputs a low level, the second end of the main control unit 1 outputs a high level, the first MOS transistor Q1 and the fourth MOS transistor Q4 are turned on, the second MOS transistor Q2 and the fourth MOS transistor Q4 are turned off, and the electric control valve 42 is turned off; when a control signal is sent to close the electric control valve 42, the first end of the main control unit 1 outputs a high level, the second end outputs a low level, the first MOS transistor Q1 and the fourth MOS transistor Q4 are turned off, the second MOS transistor Q2 and the third MOS transistor Q3 are turned on, and the electric control valve 42 is closed.
In practical application, for example, when a user purchases N cubic natural gas at an external terminal, the flow meter measures the usage amount of the natural gas of the user, the main control unit 1 collects a flow cumulative quantity signal and a flow pulse signal of the flow meter, the main control unit 1 judges according to the flow cumulative quantity signal and the flow pulse signal of the flow meter, when the user does not use the purchased natural gas, the first end of the main control unit 1 outputs a low level, the second end of the main control unit 1 outputs a high level, the first MOS transistor Q1 and the fourth MOS transistor Q4 are switched on, the second MOS transistor Q2 and the third MOS transistor Q3 are switched off, the electric control valve 42 is opened, the natural gas in the fluid channel is unblocked, and the user can continue to use the natural gas; if the user is judged to use the purchased natural gas, the first end of the main control unit 1 outputs high level, the second end of the main control unit outputs low level, the first MOS tube Q1 and the fourth MOS tube Q4 are cut off, the second MOS tube Q2 and the third MOS tube Q3 are switched on, the electric control valve 42 is closed, the natural gas in the fluid channel is cut off, and the user is stopped using the natural gas.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. An internet of things flow meter controller, comprising:
the system comprises a communication module, a main control unit, an Internet of things interface module and a valve control module;
the communication module is in communication connection with the main control unit and is connected with an external flowmeter during use so as to obtain a flow accumulative quantity signal and a flow pulse signal of the external flowmeter and transmit the flow accumulative quantity signal and the flow pulse signal to the main control unit;
the main control unit is used for sending out a corresponding control signal according to the traffic cumulative quantity signal and the traffic pulse signal;
the valve control module is in communication connection with the main control unit, is also connected with the fluid channel when in use, and is used for controlling the opening and closing state of the fluid channel according to the control signal;
the Internet of things interface module is in communication connection with the main control unit and is also connected with an external terminal when in use, so that the main control unit is communicated with the external terminal.
2. The internet of things flow meter controller of claim 1, wherein the valve control module comprises: the valve control circuit is electrically connected with the electric control valve and is used for controlling the on-off state of the electric control valve.
3. The internet of things flow meter controller of claim 2, wherein the valve control circuit comprises: the device comprises a first logic control circuit, a second logic control circuit, a first MOS (metal oxide semiconductor) transistor, a second MOS transistor, a third MOS transistor and a fourth MOS transistor;
the first end of the first logic control circuit is connected with the first end of the main control unit; the second end of the second logic control circuit is connected with the second end of the main control unit; the grid electrode of the first MOS tube is connected with the second end of the first logic control circuit, the source electrode of the first MOS tube is connected with the positive electrode of the direct-current power supply end, and the drain electrode of the first MOS tube is connected with the first end of the electric control valve; the grid electrode of the second MOS tube is connected with the second end of the second logic control circuit, the source electrode of the second MOS tube is connected with the positive end of the direct-current power supply, and the drain electrode of the second MOS tube is connected with the second end of the electric control valve; the grid electrode of the third MOS tube is connected with the third end of the first logic control circuit, the drain electrode of the third MOS tube is connected with the drain electrode of the second MOS tube, and the source electrode of the third MOS tube is grounded; the grid electrode of the fourth MOS tube is connected with the third end of the second logic control circuit, the drain electrode of the fourth MOS tube is connected with the drain electrode of the third MOS tube, and the source electrode of the fourth MOS tube is grounded.
4. The internet of things flow meter controller of claim 3, wherein the valve control circuit further comprises a first capacitor, a first end of the first capacitor is connected to a first end of the electrically controlled valve, a second end of the first capacitor is connected to a second end of the electrically controlled valve, and the first capacitor is used for eliminating high frequency pulses and EMI protection.
5. The internet of things flow meter controller of claim 1, wherein the internet of things interface module comprises: NB-IOT, NFC, Cat.1, Wifi, Bluetooth, and/or infrared.
6. The internet of things flow meter controller of claim 1, further comprising a power module, the power module comprising an internal dc power module, an external dc power module, and a dc output module.
7. The internet of things flow meter controller of claim 1, further comprising a memory communicatively coupled to the master control unit for storing data.
8. The internet of things flow meter controller of claim 1, further comprising a display, communicatively connected to the main control unit, for displaying a flow meter status signal, a valve switch status, a communication status, a user pre-stored flow rate, and/or a user remaining amount.
9. The flowmeter controller of claim 1, further comprising a switch connected to the main control unit for function wake-up, function enable, and/or state switching, wherein the switch is a key switch or a touch switch.
10. The internet-of-things flow meter controller as claimed in claim 1, wherein the communication module comprises a flow meter data transmission unit, an alarm signal transmission unit and a flow pulse signal transmission unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121700144.XU CN215420596U (en) | 2021-07-26 | 2021-07-26 | Flowmeter controller of Internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121700144.XU CN215420596U (en) | 2021-07-26 | 2021-07-26 | Flowmeter controller of Internet of things |
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| Publication Number | Publication Date |
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| CN215420596U true CN215420596U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121700144.XU Active CN215420596U (en) | 2021-07-26 | 2021-07-26 | Flowmeter controller of Internet of things |
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| CN (1) | CN215420596U (en) |
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- 2021-07-26 CN CN202121700144.XU patent/CN215420596U/en active Active
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