CN114490486B - Bus hardware architecture for gas meter and gas meter - Google Patents
Bus hardware architecture for gas meter and gas meter Download PDFInfo
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- CN114490486B CN114490486B CN202210105686.5A CN202210105686A CN114490486B CN 114490486 B CN114490486 B CN 114490486B CN 202210105686 A CN202210105686 A CN 202210105686A CN 114490486 B CN114490486 B CN 114490486B
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- 101150039658 Prrc2a gene Proteins 0.000 claims description 5
- 101150032839 SLC7A9 gene Proteins 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0002—Serial port, e.g. RS232C
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0016—Inter-integrated circuit (I2C)
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- Computer Hardware Design (AREA)
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Abstract
The invention discloses a bus hardware architecture for a gas meter and the gas meter, relates to the technical field of intelligent gas meters, and solves the technical problems that in the prior art, the gas meter is adapted through exchanging communication modules, a hardware circuit design with corresponding implementation is not provided, and a multifunctional hardware circuit suitable for the gas meter is required to be designed. The device comprises a functional bus and a module slot; the bus hardware architecture is arranged on the gas meter and comprises at least more than two module slots; any module slot can be exchanged; the module slot is provided with a plurality of functional jacks; the functional jacks are matched with the functional buses; the functional bus is connected with the gas meter through the module slot. The invention opens various module functions to a bus hardware architecture, provides a multifunctional hardware circuit suitable for the gas meter, and improves the expansibility and adaptability of the existing gas meter.
Description
Technical Field
The invention relates to the technical field of intelligent gas meters, in particular to a bus hardware architecture for a gas meter and the gas meter.
Background
In the gas meter industry, communication modules with interchangeability and expansibility have been adopted in some places. The communication modules conveniently meet the adaptation and the exchange of the communication modules of the gas meter, so that the functions of the communication modules and the functions of the gas meter base meter are separated from each other. Rather than being tightly fitted into the meter as in conventional smart meters, the communication modules are tightly coupled together and cannot be flexibly selected as desired in the field. However, if the design requirements are higher, it is far from sufficient to have only the communication module with interchangeability.
When intelligent and networking of meters such as water and gas meters are currently in progress and rapid evolution of smart cities is constructed on the basis of the technology of the Internet of things, aiming at the actual technical requirements, the prior art discloses three types of module (A type, B type and C type) definitions of modularized gas meters and three types of bus (Bsa, bnb and Bnc) definitions corresponding to the three types of module definitions, and discloses an implementation method for combined replacement of the three types of module.
In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art:
the existing gas meter is adapted through exchanging communication modules, and has no hardware circuit design for corresponding implementation, so that a multifunctional hardware circuit suitable for the gas meter is needed to be designed.
Disclosure of Invention
The invention aims to provide a bus hardware architecture for a gas meter and the gas meter, which are used for solving the technical problems that in the prior art, the gas meter is adapted through exchanging communication modules, the hardware circuit design for corresponding implementation is not provided, and a multifunctional hardware circuit suitable for the gas meter is required to be designed. The preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The invention provides a bus hardware architecture for a gas meter, which comprises a functional bus and a module slot; the bus hardware architecture is arranged on the gas meter and comprises at least more than two module slots; any module slot can be exchanged; the module slot is provided with a plurality of functional jacks; the function jack is matched with the function bus; the function bus is connected with the gas meter through the module slot.
Preferably, the number of the module slots arranged on the gas meter is four; different functional buses are connected with the module slots, so that different types of functional modules can be configured.
Preferably, the functional jack comprises a communication interface; the communication interface comprises an I2C communication module, an SPI communication module and an RS485 communication module; any module slot can be provided with one communication module; the communication module is connected with the gas meter through accessing the functional bus for communication.
Preferably, the communication module further comprises a UART communication module; the UART communication module comprises an RXD jack and a TXD jack; the RXD jacks are multiplexed with the RXD jacks of a UART2 port and a UART3 port of an internal bus of the gas meter at the same time; the multiplexing mode is AND gate or line AND; the TXD jack of the UART communication module adopts two paths of signal fan-out.
Preferably, the functional jack further comprises a power source type interface; the power supply type interface comprises a power supply module, a dormancy module and a battery module; the power supply modules are GND jacks and VDD jacks and are arranged at two ends of the module slot; the dormancy module is Sleepx jacks and can control the low-power-consumption operation of the battery; the battery module comprises a Bat1 jack and a Bat2 jack; the battery module can be externally provided with power and monitor the electric quantity of the battery.
Preferably, the functional jack further comprises a metering type interface; the metering type interface comprises a Tamp jack, a Pulse1 jack and a Pulse2 jack; the gas meter transmits metering signals of the gas meter to external equipment through the Pulse1 jack and the Pulse2 jack; the Tamp jack can warn of illegal operation of the gas meter.
Preferably, the functional jack further comprises a valve type interface; the valve type interface comprises a valve control module and a valve state module; the valve control module is a Trip+ jack and a Trip-jack, and can control the state of a built-in valve of the gas meter; the valve state module is an O/C jack and can input and control the opening and closing signals of the built-in valve of the gas meter.
Preferably, the functional jack further comprises a line signal interface; the port line signal type interface comprises Mountx jacks and IOx jacks; the Mountx jacks can manage the plugging and unplugging of the modules; the IOx jacks can be connected with one or more functional buses, and can realize the IO functions of interruption and other high and low levels.
Preferably, the functional jack further comprises an antenna type interface and a standby interface; the standby interface comprises Bak1 jacks, and can be selectively connected with one or more functional buses to realize a standby function; the antenna type interface is Antx jacks, so that the communication reliability of the gas meter can be enhanced.
In addition, the invention also provides a gas meter, which comprises a bus hardware architecture; the gas meter can configure different types of functional modules through the bus hardware architecture.
By implementing one of the technical schemes, the invention has the following advantages or beneficial effects:
the invention provides a bus hardware architecture aiming at the gas meter, opens various module functions to the bus hardware architecture, provides a multifunctional hardware circuit suitable for the gas meter, and improves the expansibility and adaptability of the existing gas meter.
Drawings
For a clearer description of the technical solutions of embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, in which:
FIG. 1 is a schematic diagram of a module socket according to an embodiment of the present invention;
FIG. 2 is a circuit diagram of a UART communication module according to an embodiment of the present invention.
Detailed Description
For a better understanding of the objects, technical solutions and advantages of the present invention, reference should be made to the various exemplary embodiments described hereinafter with reference to the accompanying drawings, which form a part hereof, and in which are described various exemplary embodiments which may be employed in practicing the present invention. The same reference numbers in different drawings identify the same or similar elements unless expressly stated otherwise. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. It is to be understood that they are merely examples of processes, methods, apparatuses, etc. that are consistent with certain aspects of the present disclosure as detailed in the appended claims, other embodiments may be utilized, or structural and functional modifications may be made to the embodiments set forth herein without departing from the scope and spirit of the present disclosure.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," and the like are used in an orientation or positional relationship based on that shown in the drawings, and are merely for convenience in describing the present invention and to simplify the description, rather than to indicate or imply that the elements referred to must have a particular orientation, be constructed and operate in a particular orientation. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The term "plurality" means two or more. The terms "connected," "coupled" and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, communicatively connected, directly connected, indirectly connected via intermediaries, or may be in communication with each other between two elements or in an interaction relationship between the two elements. The term "and/or" includes any and all combinations of one or more of the associated listed items. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In order to illustrate the technical solutions of the present invention, the following description is made by specific embodiments, only the portions related to the embodiments of the present invention are shown.
Embodiment one:
As shown in fig. 1, the present invention provides a bus hardware architecture for a gas meter, including a functional bus and a module slot; the bus hardware architecture is arranged on the gas meter and comprises at least more than two module slots; any module slot can be exchanged; the module slot is provided with a plurality of functional jacks; the functional jacks are matched with the functional buses; the functional bus is connected with the gas meter through the module slot. Specifically, the bus hardware architecture is composed of a functional bus and module slots, where the number of module slots is at least two. The definition of the functional jacks is consistent with the definition of the other functional jacks except for the different accessed communication interfaces. The gas meter is provided with a bus hardware architecture, and the bus hardware architecture is connected with the functional jacks on the module slots through the functional buses, so that the external equipment can be communicated with the gas meter. The invention opens various module functions to a bus hardware architecture, provides a multifunctional hardware circuit suitable for the gas meter, and improves the expansibility and adaptability of the existing gas meter.
As an alternative embodiment, the number of module slots arranged on the gas meter is four; different functional buses are connected with the module slots, and different types of functional modules can be configured. Specifically, the arrangement of four module slots on the gas meter is a special case of the bus hardware architecture, which is a preferred scheme of the invention, and the gas meter can be provided with a plurality of module slots according to industrial requirements. The bus hardware architecture can be accessed with various functional buses, and different functional buses can be combined into different functional modules by connecting with functional jacks on the module slots. The gas meter can flexibly select functional modules through the bus hardware architecture to form the intelligent gas meter with wider adaptability and stronger expansibility. In addition, the present invention defines 22 functional buses as shown in table 1 for the functional jacks of the module socket. Wherein, the definition of the modules and bins as shown in Table 1 is:
A, a module is built in, and the module can be selectively assembled on a production line in a factory. The built-in module is arranged in the gas meter, cannot be added or deleted on hardware after leaving a factory, and is plumbed and sealed by a metering supervision mechanism so as to ensure the legal management requirement of metering; the connection interface of the class A module is defined as a south bus and is marked as Bsa. And B, the external module is plugged in and out by the professional of the public product provider on site. The external module is installed in the gas meter and can be plumbed and sealed by professionals. Four bins 1,2, 3 and 4 respectively; the connection interface of the class B module is defined as a north bus and is marked as Bnb. Class C, with the modules, is ultimately pluggable by the user/family. Four bins of 1,2, 3 and 4 are respectively adopted. The connection interface of the class C module is defined as a north bus and is marked as Bnc.
1234 Represents that all slots of the bus are communicated and have the same function; 1/2/3/4 means that the bus functions are the same, and one slot is selected for communication.
The symbols shown in table 1 are custom names of the present embodiment, so that in order to distinguish each functional bus conveniently and effectively, in practical application, the names and positions of different functional buses can be adaptively modified.
Table 1 definition of 22 functional buses
As an alternative embodiment, the functional jack includes a communication type interface; the communication interface comprises an I2C communication module, an SPI communication module and an RS485 communication module; any module slot can be provided with a communication module; the communication module is connected and communicated with the gas meter through the access function bus. Specifically, as shown in fig. 1, except for the I2C communication module and the SPI communication module, the definition of the bus connection lines is completely consistent, and there is no difference between the module slots, thereby ensuring interchangeability. The I2C communication module, the SPI communication module and the RS485 communication module multiplex the two function jacks of the module slot, so that the number of communication type interface connecting lines is compressed. In the two module slots shown in fig. 1, the I2C communication module occupies 1,2 slots; the SPI communication module occupies 3,4 slots. The probability of using the I2C communication module and the SPI communication module is generally lower than that of the UART communication module, and the probability of using the I2C communication module is slightly lower than that of the SPI communication module, so that the flexibility of module exchange and the application scene universality are enhanced. The RS485 communication module has better interchangeability, but causes larger power consumption and more complicated software cost. The RS485 communication version is incompatible with the I2C communication version and the SPI communication version of the present embodiment, but the misplacement is not damaged, so that the user can easily find the incompatibility, and further exclude the incompatibility.
As an alternative embodiment, as shown in fig. 2, the communication module further includes a UART communication module; the UART communication module comprises an RXD jack and a TXD jack; the RXD jack is multiplexed with the RXD jacks of a UART2 port and a UART3 port of an internal bus of the gas meter at the same time; the multiplexing mode is AND gate or line AND; the TXD jack of the UART communication module adopts two paths of signal fan-out. Specifically, the AND gate or the wire and the multiplexing mode, and the fan-out of the two signals realizes the effect that one UART communication module is connected with two functional modules. The two internal UART communication modules of the gas meter are communicated with external equipment through UART communication modules of a bus hardware architecture.
As an alternative embodiment, the functional jack further comprises a power class interface; the power interface comprises a power module, a dormancy module and a battery module; the power supply module is a GND jack and a VDD jack and is arranged at two ends of the module slot; the dormancy module is Sleepx jacks, so that low-power-consumption operation of the battery can be controlled; the battery module comprises a Bat1 jack and a Bat2 jack; the battery module can externally plug in power supply and monitor the electric quantity of the battery. Specifically, the GND jack and the VDD jack of the power supply module are arranged at two ends of the module slot, so that the function bus hot plug function is conveniently realized whether the functional bus is connected with a golden finger or a contact pin; secondly, when the function bus is accessed by a golden finger, the gas meter is less prone to electrical short circuit. The gas meter is different from other intelligent meters in that the gas meter cannot conveniently and safely obtain external power supply (commercial power), and is usually powered by a battery, so that the power consumption index requirement is nearly harsh, the intelligent application of the product is severely restricted, and the gas meter is generally greatly behind the development of the Internet of things technology and the actual requirements of society and economy. Therefore, the invention configures the positive electrode of the battery and the power supply on-off control function on the module slot. The Bat1 jack is an alkaline battery jack, the Bat2 jack is a lithium battery jack, and the Bat1 jack and the Bat2 jack can provide external plug power for the gas meter, so that the normal use of the gas meter is ensured. When a signal is provided to Sleepx jacks, the battery can be controlled to enter low-power operation.
As an alternative embodiment, the functional jack further includes a metering class interface; the metering type interfaces comprise a Tamp jack, a Pulse1 jack and a Pulse2 jack; the gas meter transmits a metering signal of the gas meter to external equipment through the Pulse1 jack and the Pulse2 jack; the Tamp jack can signal the illegal operation of the gas meter. Specifically, pulse1 jack, pulse2 jack are measurement Pulse jack, and external equipment passes through the measurement class interface on the bus hardware architecture, can transmit the measurement Pulse of gas table to external equipment through the form of measurement signal, realizes the record and the teletransmission to measurement data. The Tamp jack is a theft signal jack, and is used for carrying out corresponding protection monitoring on the safety operation behavior of the gas meter, and when illegal operation of the gas meter is found, a warning signal is sent to external equipment.
As an alternative embodiment, the functional jack further comprises a valve-like interface; the valve interface comprises a valve control module and a valve state module; the valve control module is a Trip+ jack and a Trip-jack, and can control the state of an internal valve of the gas meter; the valve state module is an O/C jack and can input an opening and closing signal for controlling the built-in valve of the gas meter. Specifically, the external device can control and monitor the valve state in the gas meter through the valve interface on the bus hardware architecture.
As an alternative embodiment, the functional jack further comprises a line signal interface; the interface of the line signal type comprises Mountx jacks and IOx jacks; mountx jacks can manage the plugging and unplugging of the modules; IOx jacks can be connected with one or more functional buses, and can realize interrupt and other high-low level IO functions. Specifically, mountx jacks can realize the plug management of the functional modules, so that the functional modules can be plugged and used at the same time, and the power consumption and the quick response can be reduced. The IOx jack can be connected to a functional bus, and the functional bus can be arbitrarily defined, for example, an interrupt function or other high-low level IO functions can be realized.
As an alternative embodiment, the functional jack further comprises an antenna type interface and a standby interface; the standby interface comprises Bak1 jacks, and can be selectively connected with one or more functional buses to realize a standby function; the antenna type interface is Antx jacks, so that the communication reliability of the gas meter can be enhanced. Specifically, antx jacks make the antenna into a mode of communicating the inside and the outside of the gas meter, so that the physical size of the antenna can be increased, the radio frequency wiring becomes more convenient, and the communication reliability and the power consumption index are optimized. Bak1 jack is the alternative jack, can insert one or more function buses to the spare function of free definition.
In addition, the invention also provides a gas meter, which comprises a bus hardware architecture; the gas meter can be configured with different types of functional modules through a bus hardware architecture. Specifically, the gas meter is realized based on a bus hardware architecture, and the gas meter is enabled to have adaptability and universality through the bus hardware architecture, and corresponding requirements are replaced according to the requirements of users.
The embodiment is a specific example only and does not suggest one such implementation of the invention.
The foregoing is only illustrative of the preferred embodiments of the application, and it will be appreciated by those skilled in the art that various changes in the features and embodiments may be made and equivalents may be substituted without departing from the spirit and scope of the application. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the application without departing from the essential scope thereof. Therefore, it is intended that the application not be limited to the particular embodiment disclosed, but that the application will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The bus hardware architecture for the gas meter is characterized by comprising a functional bus and a module slot; the bus hardware architecture is arranged on the gas meter and comprises at least more than two module slots; any module slot can be exchanged; the module slot is provided with a plurality of functional jacks; the function jack is matched with the function bus; the functional bus is connected with the gas meter through the module slot;
the definition of the functional jacks is consistent except that the accessed communication interfaces are different, and the definition of the other functional jacks is consistent.
2. The bus hardware architecture for a gas meter of claim 1, wherein the number of module slots provided on the gas meter is four; different functional buses are connected with the module slots, so that different types of functional modules can be configured.
3. The bus hardware architecture for a gas meter of claim 1, wherein the functional jack comprises a communication type interface; the communication interface comprises an I2C communication module, an SPI communication module and an RS485 communication module; any module slot can be provided with one communication module; the communication module is connected with the gas meter through accessing the functional bus for communication.
4. A bus hardware architecture for a gas meter as defined in claim 3, wherein said communication module further comprises a UART communication module; the UART communication module comprises an RXD jack and a TXD jack; the RXD jacks are multiplexed with the RXD jacks of a UART2 port and a UART3 port of an internal bus of the gas meter at the same time; the multiplexing mode is AND gate or line AND; the TXD jack of the UART communication module adopts two paths of signal fan-out.
5. The bus hardware architecture for a gas meter of claim 1, wherein the functional jack further comprises a power class interface; the power supply type interface comprises a power supply module, a dormancy module and a battery module; the power supply modules are GND jacks and VDD jacks and are arranged at two ends of the module slot; the dormancy module is Sleepx jacks and can control the low-power-consumption operation of the battery; the battery module comprises a Bat1 jack and a Bat2 jack; the battery module can be externally provided with power and monitor the electric quantity of the battery.
6. The bus hardware architecture for a gas meter of claim 1, wherein the functional jack further comprises a metering class interface; the metering type interface comprises a Tamp jack, a Pulse1 jack and a Pulse2 jack; the gas meter transmits metering signals of the gas meter to external equipment through the Pulse1 jack and the Pulse2 jack; the Tamp jack can warn of illegal operation of the gas meter.
7. The bus hardware architecture for a gas meter of claim 1, wherein the functional jack further comprises a valve-like interface; the valve type interface comprises a valve control module and a valve state module; the valve control module is a Trip+ jack and a Trip-jack, and can control the state of a built-in valve of the gas meter; the valve state module is an O/C jack and can input and control the opening and closing signals of the built-in valve of the gas meter.
8. The bus hardware architecture for a gas meter of claim 1, wherein the functional jack further comprises a line-of-port signal type interface; the port line signal type interface comprises Mountx jacks and IOx jacks; the Mountx jacks can manage the plugging and unplugging of the modules; the IOx jacks can be connected with one or more functional buses, and can realize the IO functions of interruption and other high and low levels.
9. The bus hardware architecture for a gas meter of claim 1, wherein the functional jack further comprises an antenna-like interface and a standby interface; the standby interface comprises Bak1 jacks, and can be selectively connected with one or more functional buses to realize a standby function; the antenna type interface is Antx jacks, so that the communication reliability of the gas meter can be enhanced.
10. A gas meter comprising the bus hardware architecture of any one of claims 1-9; the gas meter can configure different types of functional modules through the bus hardware architecture.
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