CN213718142U - Gas meter based on spread spectrum modulation technology - Google Patents
Gas meter based on spread spectrum modulation technology Download PDFInfo
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- CN213718142U CN213718142U CN202022594737.4U CN202022594737U CN213718142U CN 213718142 U CN213718142 U CN 213718142U CN 202022594737 U CN202022594737 U CN 202022594737U CN 213718142 U CN213718142 U CN 213718142U
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Abstract
The utility model relates to a gas table wireless communication technical field specifically discloses a gas table based on spread spectrum modulation technique, including main control chip, power management module, liquid crystal display module, flow detection module, valve accuse module, communication module, buzzer circuit and keying circuit, liquid crystal display module, flow detection module, valve accuse module, communication module, buzzer circuit, keying circuit all links to each other with main control chip, power management module respectively with main control chip, liquid crystal display module, flow detection module, valve accuse module, communication module, buzzer circuit and keying circuit connection. The utility model provides a gas table based on spread spectrum modulation technique adopts the low-power consumption design, fuses the spread spectrum wireless communication technique, and communication distance is far away, and is reliable and stable, and abundant peripheral hardware interface satisfies the information interaction of user and gas table, satisfies the demand of intelligent gas table.
Description
Technical Field
The utility model relates to a gas table wireless communication technical field, more specifically relates to a gas table based on spread spectrum modulation technique.
Background
With the rapid development of urban gas industry, the population of urban residents is rapidly increased, natural gas is popularized, and how to timely and accurately copy huge dispersed gas meter networks becomes a problem which needs to be solved urgently by gas companies.
The gas company carries out remote operation on the gas meter through the software background, so that the effective management efficiency of the gas company and the real-time monitoring effect on gas users are improved, the number of times of home service of workers of the gas company is reduced, and the human resources of the gas company are saved to a great extent.
Disclosure of Invention
The utility model aims at overcoming the not enough of existence among the prior art, providing a gas table based on spread spectrum modulation technique, adopting spread spectrum modulation technique, establishing long distance communication link, the distance of checking meter is far away, interference killing feature, good reliability.
As a first aspect of the utility model provides a gas meter based on spread spectrum modulation technique, including main control chip, power management module, liquid crystal display module, flow detection module, valve accuse module, communication module, buzzer circuit and keying circuit, liquid crystal display module, flow detection module, valve accuse module, communication module, buzzer circuit, keying circuit all with main control chip links to each other, power management module respectively with main control chip, liquid crystal display module, flow detection module, valve accuse module, communication module, buzzer circuit and keying circuit connect, are used for the power supply to give main control chip, liquid crystal display module, flow detection module, valve accuse module, communication module, buzzer circuit and keying circuit.
Further, the power management module comprises a voltage detection circuit, a voltage stabilizing circuit and a standby capacitor, and the output end of the voltage stabilizing circuit is respectively connected with the main control chip, the liquid crystal display module, the flow detection module, the valve control module, the communication module, the buzzer circuit and the key circuit for power supply.
Further, the voltage detection circuit includes a first resistor R24, a second resistor R1 and a third resistor R2, the voltage regulation circuit includes a first capacitor C34, a second capacitor C35 and a power supply voltage stabilization chip D1, the backup capacitor includes two farad capacitors C42 and C43 connected in series, wherein one end of each of the second resistor R1 and the third resistor R2 is connected to the power supply detection port of the main control chip, the other end of the third resistor R2 is grounded, the other end of the second resistor R1 is connected to one end of the first resistor R24, the other end of the first resistor R24 is connected to the input end of the power supply voltage stabilization chip D1, the input end of the power supply voltage stabilization chip D1 is further connected to one end of the first capacitor C34, the output end of the power supply voltage stabilization chip D1 is connected to one end of the second capacitor C35, the other ends of the first capacitor C34 and the second capacitor C35 are grounded, one end of the farad capacitor C42 is connected with the farad capacitor C43, the other end of the farad capacitor C43 is grounded, and the other end of the farad capacitor C43 is connected with the output end of the power supply voltage stabilizing chip D1 and a power supply system respectively.
Further, the power supply voltage stabilization chip D1 includes a chip with model number LR 6232.
Further, the backup capacitor comprises a farad capacitor of type WEC 3RO105 QG.
Further, the model of the main control chip is FM33G 048.
Furthermore, the liquid crystal display module adopts a segment code liquid crystal screen and is used for displaying wireless parameters, electric quantity and gas reading of the gas meter.
Furthermore, the flow detection module adopts a photoelectric direct reading mode and is used for measuring mechanical reading of the gas meter, wherein the flow detection module is connected with the main control chip through a GPIO interface.
Further, the valve control module comprises a chip with a model number of SY6702, the input end of the valve control module is connected with the main control chip, and the output end of the valve control module is connected with the gas meter valve, so that the control function of the gas meter valve is realized.
Furthermore, the communication module adopts a spread spectrum wireless communication module with the model of SX1278 and performs data interaction with the main control chip through an SPI interface.
The utility model provides a gas table based on spread spectrum modulation technique has following advantage: (1) the spread spectrum module is used for replacing the GFSK wireless module, so that the transmission distance is greatly increased; (2) the valve control module drives the gas meter valve, so that the circuit is simplified, and the safety and reliability of the valve control circuit are ensured; (3) the increase of the farad capacitor ensures that the meter has the capacity of processing an emergency scheme after power failure; (4) the main control chip is used for driving direct reading to complete a response function, so that the reliability of direct reading connection is ensured; (5) the button and the liquid crystal display are convenient for users and engineering personnel to interact with the meter.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is the utility model provides an internal circuit structure block diagram of gas table based on spread spectrum modulation technique.
Fig. 2 is a circuit diagram of the power management module provided by the present invention.
Fig. 3 is the utility model provides an application system schematic diagram of gas table based on spread spectrum modulation technique.
Description of reference numerals: 1-a main control chip; 2-a power management module; 3-a liquid crystal display module; 4-a flow detection module; 5-a valve control module; 6-a communication module; 7-a buzzer circuit; 8-a key circuit; 9-a gas meter; 10-meter reading auxiliary equipment; 11-mobile public network; 12-a data center; 13-user.
Detailed Description
To further illustrate the technical means and effects of the present invention for achieving the objectives of the present invention, the following detailed description will be made with reference to the accompanying drawings and preferred embodiments of the present invention for the specific embodiments, structures, features and effects of the gas meter based on the spread spectrum modulation technique according to the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In this embodiment, a gas meter based on a spread spectrum modulation technology is provided, as shown in fig. 1, the gas meter based on the spread spectrum modulation technology includes a main control chip 1, a power management module 2, a liquid crystal display module 3, a flow detection module 4, a valve control module 5, a communication module 6, a buzzer circuit 7, and a key circuit 8, the liquid crystal display module 3, the flow detection module 4, the valve control module 5, the communication module 6, the buzzer circuit 7, and the key circuit 8 are all connected to the main control chip 1, the power management module 2 is respectively connected to the main control chip 1, the liquid crystal display module 3, the flow detection module 4, the valve control module 5, the communication module 6, the buzzer circuit 7, and the key circuit 8, and is configured to supply power to the main control chip 1, the liquid crystal display module 3, the flow detection module 4, the valve control module 5, the communication module 6, and the key circuit 8, A buzzer circuit 7 and a key circuit 8.
Preferably, as shown in fig. 2, the power management module 2 includes a voltage detection circuit, a voltage regulator circuit, and a backup capacitor, and an output end of the voltage regulator circuit is connected to the main control chip 1, the liquid crystal display module 3, the flow detection module 4, the valve control module 5, the communication module 6, the buzzer circuit 7, and the key circuit 8, respectively, for supplying power.
Specifically, the voltage detection circuit includes a first resistor R24, a second resistor R1, and a third resistor R2, the voltage regulation circuit includes a first capacitor C34, a second capacitor C35, and a power supply voltage stabilization chip D1, the backup capacitor includes two farad capacitors C42 and C43 connected in series, wherein one end of each of the second resistor R1 and the third resistor R2 is connected to the power supply detection port of the main control chip 1, the other end of the third resistor R2 is grounded, the other end of the second resistor R1 is connected to one end of the first resistor R24, the other end of the first resistor R24 is connected to the input end of the power supply voltage stabilization chip D1, the input end of the power supply voltage stabilization chip D1 is further connected to one end of the first capacitor C34, the output end of the power supply voltage stabilization chip D1 is connected to one end of the second capacitor C35, the other ends of the first capacitor C34 and the second capacitor C35 are grounded, one end of the farad capacitor C42 is connected with the farad capacitor C43, the other end of the farad capacitor C43 is grounded, and the other end of the farad capacitor C43 is connected with the output end of the power supply voltage stabilizing chip D1 and a power supply system respectively.
Preferably, the power supply voltage stabilization chip D1 includes a chip with model LR6232, specifically, a chip with model LR6232 for le shan electronics.
Preferably, the backup capacitor comprises a farad capacitor of type WEC 3RO105 QG, in particular a farad capacitor of type WEC 3RO105 QG from VINA.
Preferably, the model of the main control chip 1 is FM33G048, which has the advantages of low power consumption and high performance.
Preferably, the liquid crystal display module 3 adopts a segment code liquid crystal screen for displaying wireless parameters, electric quantity and gas readings of the gas meter.
Preferably, the flow detection module 4 adopts a photoelectric direct reading mode and is used for measuring mechanical readings of the gas meter, wherein the flow detection module 4 is connected with the main control chip 1 through a GPIO interface.
Preferably, the valve control module 5 comprises a chip with model number SY6702 manufactured by silicon Lijie, and the input end of the chip is connected with the main control chip 1, and the output end of the chip is connected with the gas meter valve, so that the control function of the gas meter valve is realized.
Preferably, the communication module 6 adopts a spread spectrum wireless communication module with the model of SX1278, performs data interaction with the main control chip 1 through an SPI interface, and realizes cad signal reception detection of data transmission and reception of the spread spectrum wireless communication module through a GPIO interrupt mode.
Preferably, the main control chip 1 drives the buzzer to be turned on or off through the buzzer circuit 7, and is used for prompting a user to touch a key and switch a valve.
Preferably, the key circuit 8 is connected with the main control chip 1 and used for checking the electric quantity and the gas consumption of the meter through the liquid crystal display module 3 after a user touches the key.
As shown in fig. 3, the utility model provides a gas table based on spread spectrum modulation technique's application as follows: after the gas meter 9 is installed, the auxiliary meter reading device 10 acquires information of the gas meter 9, including electric quantity of a meter and gas consumption, through spread spectrum modulation wireless transmission, and the data center 12 acquires the information of the gas meter 9 acquired by the auxiliary meter reading device 10 through the mobile public network 11; remote meter reading and valve control are carried out on the on-site spread spectrum gas meter 9 through the data center 12 and the meter reading auxiliary equipment 10, and after the remote meter reading and valve control is completed, operation results and data are also transmitted back to the data center 12 and stored; in addition, the data center 12 associates the information of the spread spectrum gas meter 9 with the information of the user 13, so that a management scheme such as prepayment management of the user 13 can be performed, and the user 13 can acquire the user information through the mobile public network 11, so that the data management and the user information management of the gas meter based on the spread spectrum modulation technology can be realized.
The utility model provides a gas table based on spread spectrum modulation technique, electronic component all adopt low-power consumption device, and the work consumption is low, and the table utensil lasts the working capability reinforce; the spread spectrum wireless communication is adopted for establishing a long-distance communication link, the meter reading distance is long, and the anti-interference capability and the reliability are strong; abundant peripheral circuits make the meter more intelligent.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (10)
1. The gas meter based on the spread spectrum modulation technology is characterized by comprising a main control chip (1), a power management module (2), a liquid crystal display module (3), a flow detection module (4), a valve control module (5), a communication module (6), a buzzer circuit (7) and a key circuit (8), wherein the liquid crystal display module (3), the flow detection module (4), the valve control module (5), the communication module (6), the buzzer circuit (7) and the key circuit (8) are all connected with the main control chip (1), the power management module (2) is respectively connected with the main control chip (1), the liquid crystal display module (3), the flow detection module (4), the valve control module (5), the communication module (6), the buzzer circuit (7) and the key circuit (8) and used for supplying power to the main control chip (1), The flow meter comprises a liquid crystal display module (3), a flow detection module (4), a valve control module (5), a communication module (6), a buzzer circuit (7) and a key circuit (8).
2. The gas meter based on the spread spectrum modulation technology as claimed in claim 1, wherein the power management module (2) comprises a voltage detection circuit, a voltage stabilizing circuit and a backup capacitor, and an output end of the voltage stabilizing circuit is respectively connected with the main control chip (1), the liquid crystal display module (3), the flow detection module (4), the valve control module (5), the communication module (6), the buzzer circuit (7) and the key circuit (8) for supplying power.
3. The gas meter based on the spread spectrum modulation technology as claimed in claim 2, wherein the voltage detection circuit includes a first resistor R24, a second resistor R1 and a third resistor R2, the voltage regulator circuit includes a first capacitor C34, a second capacitor C35 and a power supply voltage stabilization chip D1, the backup capacitor includes two serially connected farad capacitors C42 and C43, wherein one end of each of the second resistor R1 and the third resistor R2 is connected to the power supply detection port of the main control chip (1), the other end of the third resistor R2 is connected to ground, the other end of the second resistor R1 is connected to one end of the first resistor R24, the other end of the first resistor R24 is connected to the input end of the power supply voltage stabilization chip D1, the input end of the power supply voltage stabilization chip D1 is further connected to one end of the first capacitor C34, the output end of the power supply voltage stabilization chip D1 is connected to one end of the second capacitor C35, the other ends of the first capacitor C34 and the second capacitor C35 are grounded, one end of the farad capacitor C42 is connected with the farad capacitor C43, the other end of the farad capacitor C43 is grounded, and the other end of the farad capacitor C43 is connected with the output end of the power supply voltage stabilizing chip D1 and a power supply system.
4. The gas meter based on the spread spectrum modulation technology as claimed in claim 3, wherein the power supply voltage stabilization chip D1 includes a chip with model number LR 6232.
5. The gas meter based on the spread spectrum modulation technology as claimed in claim 3, wherein the backup capacitor comprises a farad capacitor of type WEC 3RO105 QG.
6. The gas meter based on the spread spectrum modulation technology as claimed in claim 1, wherein the model of the main control chip (1) is FM33G 048.
7. The gas meter based on the spread spectrum modulation technology as claimed in claim 1, wherein the liquid crystal display module (3) adopts a segment code liquid crystal screen for displaying wireless parameters, electric quantity and gas readings of the gas meter.
8. The gas meter based on the spread spectrum modulation technology according to claim 1, wherein the flow detection module (4) adopts a photoelectric direct reading mode for measuring mechanical readings of the gas meter, wherein the flow detection module (4) is connected with the main control chip (1) through a GPIO interface.
9. The gas meter based on the spread spectrum modulation technology as claimed in claim 1, wherein the valve control module (5) comprises a chip with model number SY6702, an input end of the chip is connected with the main control chip (1), and an output end of the chip is connected with a gas meter valve, so that a control function of the gas meter valve is realized.
10. The gas meter based on the spread spectrum modulation technology as claimed in claim 1, wherein the communication module (6) adopts a spread spectrum wireless communication module with a model number of SX1278, and performs data interaction with the main control chip (1) through an SPI interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022594737.4U CN213718142U (en) | 2020-11-11 | 2020-11-11 | Gas meter based on spread spectrum modulation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022594737.4U CN213718142U (en) | 2020-11-11 | 2020-11-11 | Gas meter based on spread spectrum modulation technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213718142U true CN213718142U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022594737.4U Active CN213718142U (en) | 2020-11-11 | 2020-11-11 | Gas meter based on spread spectrum modulation technology |
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| Country | Link |
|---|---|
| CN (1) | CN213718142U (en) |
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- 2020-11-11 CN CN202022594737.4U patent/CN213718142U/en active Active
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