CN209149462U - A gas meter module - Google Patents

Abstract

A kind of gas meter, flow meter module, including pcb board, single-chip microcontroller is set on pcb board, IC card information Switching Module, warning circuit, counting circuit, wireless communication module and farad capacitor, IC card information Switching Module, warning circuit, counting circuit, wireless communication module and farad capacitor are connect with single-chip microcontroller, wireless communication module includes any module in NB-Iot module or GPRS module or Lora module, any module in NB-Iot module or GPRS module or Lora module is to for the space propagation data around gas meter, flow meter, any module in NB-Iot module or GPRS module or Lora module is to for gas company's database transmissions data, any module in NB-Iot module or GPRS module or Lora module is to for IC The short range transmission data of IC card and radio-frequency card circuit in card information Switching Module, gage probe connect single-chip microcontroller by counting circuit, have intelligent control, the function of low pressure detection and wireless data transmission.

Description

A gas meter module

technical field

The utility model belongs to the technical field of instrument equipment, in particular to a gas meter module.

Background technique

At present, with the improvement of living standards and the strengthening of environmental protection awareness, people's daily cooking fuels have changed from firewood, coal and other wasteful and polluting conventional energy sources to the use of natural gas and gas, and even electricity and other clean energy sources. , here the gas meter will play its role. With its automatic accumulation function, those who use natural gas or pipeline gas can easily know how much gas they use, so that they can consume the cubic meters of gas per month. Pay the fees.

The current mainstream smart gas meters need a lot of time and manpower to read the meter, and most of them need to go to the household to check. A large number of households have no one at home during the working day, which is also for the meter reading personnel. It brings inconvenience to the households, and due to the individuality of the meter readers, the numbers read out are different, and there are certain difficulties in identification.

SUMMARY OF THE INVENTION

The purpose of the present utility model is to solve the problems raised in the background art, and provide a gas meter module with functions of step pricing, intelligent control, low pressure detection and wireless data transmission.

The purpose of this utility model is achieved in this way:

A gas meter module comprises a PCB board, the PCB board is arranged in the gas meter, the gas meter comprises a shell, the shell is made of moisture-proof material, and the front of the shell is sequentially provided with a display slot, an IC card induction area and a metering device, The metering device is connected to the metering sensor; the PCB board is provided with a single-chip microcomputer, an IC card information exchange module, an alarm circuit, a counting circuit, a wireless communication module and a Farad capacitor, and the IC card information exchange module, the alarm circuit, the counting circuit, the wireless communication module and the Farad capacitor are all Connected with the single-chip microcomputer, the wireless communication module includes any one of the NB-Iot module or the GPRS module or the Lora module. The NB-Iot module or the GPRS module or any one of the Lora modules is used to transmit data to the space around the gas meter. , any one of the NB-Iot module or the GPRS module or the Lora module is used to transmit data to the gas company database, and any one of the NB-Iot module or the GPRS module or the Lora module is used to transmit data to the IC card information exchange module The IC card and the radio frequency card circuit transmit data in a short distance, and the metering sensor is connected to the single-chip microcomputer through the counting circuit.

Preferably, one end of the PCB board is fixedly connected to a display, and the screen on the display corresponds to the display slot on the gas meter.

Preferably, the working temperature of the gas meter is -15°C to +60°C, the working quiescent current of the gas meter is less than 30 μA, and the operating frequency of the gas meter is 470MHz.

Preferably, the single-chip microcomputer is an MSP430 chip.

Preferably, an external dry battery is installed on the gas meter, and the number of dry batteries is four.

Preferably, when the dry battery stops supplying power, the Farad capacitor provides electrical energy for the emergency closing of the air valve.

Preferably, the PCB board in the gas meter further includes a reset circuit and a motor drive circuit, the motor drive circuit is used to close the valve in the gas meter, and the reset circuit is used to initialize data in the gas meter.

The beneficial effects of the present utility model are:

1. Dual power supply function: a power supply scheme combining Farad capacitors and external dry batteries is used. The dry batteries are used to power the gas meter. When the dry battery is dead and the gas meter is accidentally powered off, the Farad capacitor can be used to force the closing of the gas valve to ensure Gas safety.

2. WOR wireless wake-up function: The WOR wireless wake-up function is adopted, which improves the corresponding speed of meter reading and reduces the power consumption of the battery.

3. EFC function: EFC technology is adopted to increase the reliability of data communication, effectively increase the anti-interference ability of the system, improve the reliability of received data, and increase the transmission distance of signals.

4. Display function: It can display the remaining amount, the current gas purchase amount, the accumulated amount, the low pressure, the insufficient remaining amount, the gas consumption of the current month, the current gas price, the cumulative gas consumption and other related information.

5. Prompt function: the remaining amount is insufficient display, low voltage display, card operation error prompt and other prompt functions, the measurement accuracy is 0.01m ³ ～ 0.1m ³ .

6. Valve control function: the valve can be forced to close through wireless data communication to ensure safety.

7. Meter reading function: The operator can read and receive the information on the user's meter in real time through the handheld or GPRS concentrator.

8. Automatic data saving function: data is automatically saved to ensure that the data can be restored when the user powers up again in the case of no power.

Description of drawings

FIG. 1 is a schematic structural diagram of a gas meter in a gas meter module of the present invention.

FIG. 2 is a schematic diagram of the structure of a PCB board in a gas meter module of the present invention.

3 is a schematic diagram of a wireless communication module in a gas meter module of the present invention.

In the figure: 1. Shell; 2. IC card induction area; 3. Metering device; 4. Display slot; 5. Farad capacitor; 6. Lora module; 7. Da driving circuit; 8. Metering sensor; 9. Wireless communication module 10. Alarm circuit; 11. IC card information exchange module; 12. Display; 13. SCM; 14. Reset circuit; 15. Counting circuit; 16. NB-Iot module;

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model , all other embodiments obtained by those of ordinary skill in the art without creative work, all belong to the protection scope of the present invention.

Example 1

As shown in Figures 1 and 2, a gas meter module includes a PCB board, the PCB board is arranged in the gas meter, the gas meter includes a casing 1, the casing 1 is made of moisture-proof material, and the front of the casing 1 is arranged from top to bottom. A display slot 4, an IC card induction area 2 and a metering device 3 are provided, and the metering device 3 is connected to the metering sensor 8; the PCB board is provided with a single-chip microcomputer 13, an IC card information exchange module 11, an alarm circuit 10, a counting circuit 15, a wireless communication module 9 and The Farad capacitor 5, the IC card information exchange module 11, the alarm circuit 10, the counting circuit 15, the wireless communication module 9 and the Farad capacitor 5 are all connected to the microcontroller 13, and the wireless communication module 9 includes the NB-Iot module 16 or the GPRS module 17 or the Lora module Any of 6, NB-Iot module 16 or GPRS module 17 or Lora module 6 to transmit data to the space around the gas meter, NB-Iot module 16 or GPRS module 17 or Lora module 6 Any module is used to transmit data to the gas company database, and any module in the NB-Iot module 16 or GPRS module 17 or Lora module 6 is used to transmit data to the IC card and the radio frequency card circuit in the IC card information exchange module 11. The measurement sensor 8 is connected to the single-chip microcomputer 13 through the counting circuit 15.

Preferably, one end of the PCB board is fixedly connected to a display 12, and the screen on the display 12 corresponds to the display slot 4 on the gas meter.

Preferably, the operating temperature of the gas meter is -15°C to +60°C, the operating quiescent current of the gas meter is less than 30 μA, and the operating frequency of the gas meter is 470MHz.

Preferably, the single-chip microcomputer 13 is an MSP430 chip.

Preferably, an external dry battery is installed on the gas meter, and the number of dry batteries is four.

Preferably, when the dry battery stops supplying power, the Farad capacitor 5 provides electrical energy for the emergency closing of the air valve.

Preferably, the PCB board in the gas meter further includes a reset circuit 14 and a motor drive circuit 7, the motor drive circuit 7 is used to close the valve in the gas meter, and the reset circuit 14 is used to initialize data in the gas meter.

Example 2

As shown in Figure 2 and Figure 3, when in use, connect the device to the gas pipeline and the user's kitchen equipment through the valve interface in the gas meter, and then put a dry battery in the gas meter base to use it, and the user can directly use the display Observe the gas consumption on the screen of the corresponding display 12 in the slot 4, insert the IC card into the IC card induction area 2, the IC card information exchange module 11 realizes the charge input of the IC card through the Lora module in the wireless communication module 9, and performs prepaid use of gas , After the IC card information exchange module 11 reads the information in the IC card, it is analyzed by the single-chip 13, through the setting of the single-chip 13 and the program, to realize the real-time display of the gas consumption and cost, and the security alarm circuit 10 can protect the equipment in real time. When the equipment leaks, the user steals gas, or the amount of the IC card is insufficient, the wireless communication module 9 can remotely control the valve to automatically close to ensure safety and notify the user. When meter reading is required, the operator only needs to bring a handheld or The GPRS concentrator can be placed around the user's location without entering the user's home. Through the spatial transmission of the wireless communication module 9, the handheld or GPRS concentrator brought by the operator can automatically receive the relevant data, and complete the meter reading without omission, quickly and accurately. work and improve work efficiency.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, etc., made within the protection scope of the present invention shall be included in the protection scope of the present invention. Inside.

Claims (7)

1. a kind of gas meter, flow meter module, including pcb board, it is characterised in that: the pcb board is set in gas meter, flow meter, the combustion gas Table includes shell (1), and the shell (1) is made of barrier material, and the front of the shell (1) from top to bottom successively sets display channel (4), IC card induction zone (2) and metering device (3), the metering device (3) connect gage probe (8)；It is set on the pcb board Single-chip microcontroller (13), IC card information Switching Module (11), warning circuit (10), counting circuit (15), wireless communication module (9) and method It draws capacitor (5), the IC card information Switching Module (11), warning circuit (10), counting circuit (15), wireless communication module (9) It is connect with single-chip microcontroller (13) with farad capacitor (5), the wireless communication module (9) includes NB-Iot module (16), GPRS mould Any module in block (17), Lora module (6), the NB-Iot module (16), GPRS module (17), in Lora module (6) Any module to for the space propagation data around gas meter, flow meter, the NB-Iot module (16), GPRS module (17), Any module in Lora module (6) is to for gas company's database transmissions data, the NB-Iot module (16), GPRS Any module in module (17), Lora module (6) is to for the IC card in IC card information Switching Module (11) and radio-frequency card electricity The short range transmission data on road, the gage probe (8) pass through counting circuit (15) connection single-chip microcontroller (13).

2. a kind of gas meter, flow meter module according to claim 1, it is characterised in that: one end of the pcb board is fixedly connected with one Display (12), the screen on the display (12) correspond to the display channel (4) on gas meter, flow meter.

3. a kind of gas meter, flow meter module according to claim 1, it is characterised in that: the operating temperature of the gas meter, flow meter be- 15 DEG C~+60 DEG C, the 30 μ A of Operating quiescent current < of the gas meter, flow meter, the working frequency of the gas meter, flow meter is 470MHz.

4. a kind of gas meter, flow meter module according to claim 1, it is characterised in that: the single-chip microcontroller (13) is MSP430 core Piece.

5. a kind of gas meter, flow meter module according to claim 1, it is characterised in that: external dry cell on the gas meter, flow meter is done Battery is four sections.

6. a kind of gas meter, flow meter module according to claim 5, it is characterised in that: when the dry cell stops power supply, institute It states farad capacitor (5) and provides electric energy for the emergency cut-off of air valve.

7. a kind of gas meter, flow meter module according to claim 1, it is characterised in that: also wrapped on the pcb board in the gas meter, flow meter Reset circuit (14) and motor drive circuit (7) are included, the motor drive circuit (7) is used for the valve closed in gas meter, flow meter, institute Reset circuit (14) are stated for initializing the data in gas meter, flow meter.