CN210091298U - STS prepayment gas meter based on NB-IoT - Google Patents
STS prepayment gas meter based on NB-IoT Download PDFInfo
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- CN210091298U CN210091298U CN201920783187.5U CN201920783187U CN210091298U CN 210091298 U CN210091298 U CN 210091298U CN 201920783187 U CN201920783187 U CN 201920783187U CN 210091298 U CN210091298 U CN 210091298U
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Abstract
The utility model discloses a STS prepayment gas table based on NB-IoT, including gas base table and intelligent control ware, the gas base table is including the core of measurement gas and the motor valve of control gas circulation, intelligent control ware include microprocessor module, NB-IoT communication module, flow collection module, power management module, clock module, memory module, STS decoder module. The utility model discloses a gas table adopts NB-IoT communication mode and energy management system to interact, and after the user long-range successful payment, energy management system will issue and supplement the task of supplementing with money.
Description
Technical Field
The utility model relates to a gas table technical field, concretely relates to STS prepayment gas table based on NB-IoT.
Background
The gas meter is composed of casing, diaphragm metering chamber, distributing valve, link mechanism, reverse rotation preventer, transmission mechanism and counter. Under the action of pressure difference at the inlet and the outlet of the gas meter, gas alternately enters the metering chamber through the distribution valve, is discharged to the gas outlet after being filled, simultaneously pushes the flexible diaphragm in the metering chamber to do reciprocating motion, converts the cycle process of gas charging and gas discharging into corresponding gas volume flow through the conversion mechanism, and then transmits the gas volume flow to the counter through the transmission mechanism, thereby completing the gas accumulation metering function. With the rapid development of the natural gas market, the number of gas resident users increases year by year, and the traditional intelligent gas meter has many problems in solving the pain point of a gas client, for example, the payment system of a gas company is compatible and has poor expansibility due to different storage file formats and encryption modes used by different manufacturers of an IC card prepaid gas meter; the traditional manual meter reading has the problems of serious quality and low efficiency, and the door-to-door meter reading also brings much inconvenience to users; the gas meter without the remote communication function has poor data interactivity, and is not beneficial to a user or a gas company to inquire use information; most of gas meters use disposable dry batteries, and if the energy consumption is too large, the running time and the data transmission success rate are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model solves the problems of the prior art that the IC card prepayment gas meter has different storage file formats and encryption modes used by different manufacturers, which leads to the compatibility and poor expansibility of the gas company payment system; the traditional manual meter reading has serious quality and low efficiency, and the door-to-door meter reading also brings much inconvenience to users; the gas meter without the remote communication function has poor data interactivity, and is not beneficial to a user or a gas company to inquire use information; most of gas meters use disposable dry batteries, if the energy consumption is too large, the running time and the success rate of data transmission are affected, and an STS (standard specification) prepayment gas meter based on NB-IoT (licensed enhanced radio frequency) is provided.
The utility model discloses a following technical scheme realizes:
an STS prepayment gas meter based on NB-IoT comprises a gas base meter and an intelligent controller, and is characterized in that the gas base meter comprises a metering machine core for metering gas and a motor valve for controlling gas circulation, the intelligent controller comprises a microprocessor module, an NB-IoT communication module, a flow collection module, a power management module, a clock module, a memory module and an STS decoder module, the microprocessor module is used for connecting and controlling the NB-IoT module, the flow collection module, the power management module, the clock module, the memory module and the STS decoder module, the NB-IoT module is used for data interaction of the gas meter with an IoT management platform and an energy management system through a core network, the flow collection module is used for transmitting electronic pulse signals to the microprocessor through a sampling circuit so as to calculate the gas consumption, the power management module is used for supplying power to each module and managing the power consumption running mode of the gas meter, the clock module is used for providing real-time data, the memory module is used for storing the using information data and the prepayment TID data of the gas meter, and the STS decoder module is used for decrypting the 20-bit token to finish the recharging operation of the user.
Further, the STS prepayment gas meter based on the NB-IoT comprises an intelligent controller and a liquid crystal prompting module, wherein the gas meter prompts information according to the running state.
Furthermore, the intelligent controller is connected with the motor valve through a valve driving circuit, and the gas meter controls the valve according to the operation information.
Further, the STS prepayment gas meter based on the NB-IoT comprises a core for metering gas and a motor valve for controlling the circulation of the gas.
Furthermore, the intelligent controller comprises a microprocessor module, an NB-IoT communication module, a flow collection module, a power management module, a clock module, a memory module and an STS decoder module.
Further, the 20-digit digital token is input into the STS decoder module through the NB-IoT communication module to complete credit recharging.
At present, in the prior art, the IC card prepaid gas meter has the defects of compatibility and poor expansibility of a gas company payment system due to different storage file formats and encryption modes used by different manufacturers; the traditional manual meter reading has serious quality and low efficiency, and the door-to-door meter reading also brings much inconvenience to users; the gas meter without the remote communication function has poor data interactivity, and is not beneficial to a user or a gas company to inquire use information; most gas meters use disposable dry batteries, and if the energy consumption is too large, the running time and the data transmission success rate are affected, so the application provides an STS prepayment gas meter based on NB-IoT, which comprises a gas-based meter and an intelligent controller. If an over-flow or magnetic interference event occurs, the microprocessor will close the valve until the anomaly is resolved and the valve open condition is met. The NB-IoT module integrates a radio frequency transceiving function and a control function, network communication protocols such as TCP, UDP and COAP are embedded, and data interaction is carried out with the microprocessor through UART asynchronous serial port communication. The NB-IoT module has three working states, namely a PSM state, a connection state and an idle state, when the gas meter reports data to the energy management system, the microprocessor firstly queries the information of the NB-IoT module on the network and controls whether the NB-IoT module needs to perform network injection or not according to the queried state. When the NB-IoT module is normally connected to the network, the data is transmitted to the core network, and the exchange between the NB-IoT module and the server is completed. The idle state and PSM state are automatically entered when NB-IoT has no data interaction. The power management module uses a 6V power supply and an electrolytic capacitor which has small leakage current and meets the requirement of explosion prevention of the gas meter, and supplies power to the microprocessor, the clock module and the valve control circuit respectively. When the gas meter is powered down, the valve can be effectively closed and the running information when the power is down can be stored. The prepaid gas meter can be applied to construction engineering of intelligent gas. The NB-IoT narrowband Internet of things belongs to one of low-power wide area networks, and has the advantages of low power consumption, low cost, massive connection and the like. The STS standard transport protocol was first developed in 1993 and in 1998 the title of administration and further development was given to the STS association recommended by the south africa STS association in 2005 and standardized by the international standards association as IEC 62055. The application of the STS prepaid gas meter based on the NB-IoT can simplify the service of manual meter reading of a gas management department, reduce the additional labor cost and avoid a plurality of inconveniences brought to users by manual meter reading. For the traditional IC card gas meter, because the card formats and encryption modes used by various manufacturers are different, the expansibility and compatibility of a gas management system are poor, and the prepayment gas meter of the STS protocol has the characteristics of unique key, unique code, unique verification and the like, so that the uniqueness and the safety of credit transmission are ensured. The user can use the mobile terminal of the mobile phone to carry out remote payment, the energy management system generates a 20-digit token through a key management function, and when the gas meter and the energy management system carry out data interaction, the energy management system issues a recharging task. The energy management system can count the using gas amount information and alarm information of a user, provide an analysis report for a gas management department, and greatly facilitate the operation of the gas management department and improve the user service satisfaction.
To sum up, compare with prior art, the beneficial effects of the utility model are that: the utility model discloses a NB-IoT communication mode and energy management system interact, through carrying out analysis and statistics to the gas meter uploaded use tolerance information, abnormal alarm information, operational information, improved energy management department's work efficiency, saved the extra management cost of checking meter of manual work; the user can inquire the used gas amount and the residual gas amount data of the gas meter through the mobile phone App, and can also remotely pay fees through WeChat, Payment treasured and the like; the STS prepayment mode is used, so that the payment management system of the energy management department can be unified; the power consumption management ensures the service life of the gas meter and improves the success rate of data transmission.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a block diagram of the present invention.
Fig. 2 is an explanatory diagram of the flow of token transmission and STS decoder decryption data.
Reference numbers and corresponding part names in the drawings:
the system comprises a microprocessor module 1, a 2-NB-IoT module, a 3-flow collection module, a 4-power management module, a 5-clock module, a 6-memory module, a 7-STS decoder module, an 8-metering core and a 9-motor valve.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Examples
As shown in fig. 1-2, an STS prepaid gas meter based on NB-IoT includes a gas base meter and an intelligent controller, the base meter includes a meter core 8 for measuring gas and a motor valve 9 for controlling gas circulation, and the intelligent controller includes a microprocessor module 1, an NB-IoT communication module 2, a flow collection module 3, a power management module 4, a clock module 5, a memory module 6, and an STS decoder module 7. Gas passes through the meter core 8, and the pulse signal who will convert out sends sampling circuit, and sampling circuit gathers pulse signal and sends to flow acquisition module 3, and flow acquisition module 3 analysis gas flow takes place super flow incident or magnetic interference incident to inform microprocessor module 1 with the analysis result, microprocessor module 1 can carry out gas measurement or record the operation information when taking place the anomaly according to the result. If an over-flow or magnetic interference event occurs, the microprocessor module 1 will close the valve until the anomaly is resolved and the valve open condition is met. The NB-IoT module 2 integrates a radio frequency transceiving function and a control function, network communication protocols such as TCP, UDP and COAP are embedded, and data interaction is carried out with the microprocessor through UART asynchronous serial port communication. The NB-IoT module 2 has three working states, namely a PSM state, a connection state and an idle state, when the gas meter reports data to the energy management system, the microprocessor firstly queries the information of the NB-IoT module on the network, and can control whether the NB-IoT module 2 needs to perform network injection according to the queried state, when the NB-IoT module 2 is normally connected to the network, the data is transmitted to a core network, the exchange with a server is completed, and when the NB-IoT module 2 has no data interaction, the NB-IoT module can automatically enter the idle state and the PSM state. The power management module uses a 6V power supply and an electrolytic capacitor which has small leakage current and meets the requirement of explosion prevention of the gas meter to respectively supply power to the microprocessor module 1, the clock module 5 and the valve control circuit. When the gas meter is powered down, the valve can be effectively closed and the running information when the power is down can be stored. The clock module comprises an RTC clock chip, the daily timing error meets the standard required by the gas meter, and the clock module and the microprocessor module 1 perform data interaction through an integrated circuit bus. The clock module can time year, month, day, week, hour, minute and second, has the functions of leap year compensation and the like, and provides accurate time for the gas meter. Wherein the decrypted data stream is illustrated for STS decoder module 7 as shown in figure 2. The NB-IoT module 2 acts as a connector, the physical layer protocol reads in the input 20-bit digital token data, the input token data appears on the TCDU, the application layer extracts the token by applying appropriate decryption, validation, and authentication, and the result is presented on the APDU processed by the gas meter application. After the token has processed and executed the instructions, the gas meter application process indicates the results on the APDU and the application layer takes further action.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. An STS prepayment gas meter based on NB-IoT comprises a gas base meter and an intelligent controller, and is characterized in that the gas base meter comprises a gas metering machine core (8) and a motor valve (9), the gas metering machine core is used for metering gas, the motor valve is used for controlling gas circulation, the intelligent controller comprises a microprocessor module (1), an NB-IoT module (2), a flow collection module (3), a power management module (4), a clock module (5), a memory module (6) and an STS decoder module (7), the microprocessor module (1) is used for connecting and controlling the NB-IoT module (2), the flow collection module (3), the power management module (4), the clock module (5), the memory module (6) and the STS decoder module (7), and the NB-IoT module (2) is used for data interaction of the gas meter with an IoT management platform and an energy management system through a core network, the flow collection module (3) is used for transmitting an electronic pulse signal to the microprocessor through the sampling circuit, and then calculating the gas consumption, the power management module (4) is used for supplying power to each module and managing the power consumption running mode of the gas meter, the clock module (5) is used for providing real-time data, the memory module (6) is used for storing the gas meter use information data and prepayment TID data, and the STS decoder module (7) is used for decrypting a 20-bit token to finish recharging operation of a user.
2. The STS prepaid gas meter based on NB-IoT as claimed in claim 1, wherein the intelligent controller comprises a liquid crystal prompt module, and the gas meter prompts information according to the operation status.
3. The STS prepaid gas meter based on NB-IoT as claimed in claim 1, wherein the intelligent controller is connected to the motor valve through a valve driving circuit, and the gas meter performs valve control according to the operation information.
4. The NB-IoT based STS prepaid gas meter in accordance with claim 1, wherein the gas base meter comprises a gas metering movement and an electromechanical valve to control gas flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920783187.5U CN210091298U (en) | 2019-05-28 | 2019-05-28 | STS prepayment gas meter based on NB-IoT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920783187.5U CN210091298U (en) | 2019-05-28 | 2019-05-28 | STS prepayment gas meter based on NB-IoT |
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| CN210091298U true CN210091298U (en) | 2020-02-18 |
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| CN201920783187.5U Expired - Fee Related CN210091298U (en) | 2019-05-28 | 2019-05-28 | STS prepayment gas meter based on NB-IoT |
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| CN (1) | CN210091298U (en) |
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Granted publication date: 20200218 |