CN112484314B - Universal communication interface for gas heating water heater - Google Patents
Universal communication interface for gas heating water heater Download PDFInfo
- Publication number
- CN112484314B CN112484314B CN202011442323.8A CN202011442323A CN112484314B CN 112484314 B CN112484314 B CN 112484314B CN 202011442323 A CN202011442323 A CN 202011442323A CN 112484314 B CN112484314 B CN 112484314B
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- China
- Prior art keywords
- control board
- water heater
- heating water
- communication interface
- gas heating
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Abstract
The invention discloses a universal communication interface of a gas heating water heater, which is characterized by comprising a TTL UART hardware interface, a main control board and a control board, wherein the TTL UART hardware interface is adopted to supply power; and a general modbus protocol framework is adopted, RTU message types are adopted, address point location parameters are explicitly disclosed, and a user freely selects required functions and data according to a protocol. The invention is specially used for data transmission with communication equipment, and opens the function of the gas heating water heater while not disclosing the communication protocol between the main controller and the key display controller of the manufacturer, thereby facilitating the gas heating water heater to be connected into the intelligent household platform and the effective monitoring of the intelligent household platform on the gas heating water heater.
Description
Technical Field
The invention relates to the technical field of gas appliances, in particular to a universal communication interface of a gas heating water heater.
Background
With the rising and popularization of intelligent home, a gas heating water heater (hereinafter referred to as a wall-mounted boiler) is used as a heat source product for heating by different households in the north, and is necessary to have an open communication interface, so that the intelligent home platform is conveniently accessed, and the interconnection control of data transmission and other household equipment is realized. And part of wall-mounted furnaces take wifi modules as interfaces, and access network platforms of third parties such as rice houses and the like, so that simple household equipment interconnection control is realized. The network platform is limited by a third party and can only be used on a designated network platform; and limits the range of user selection of other linkage devices. The technical confidentiality and network platform limitation of communication protocols and the like which are unwilling to be disclosed by manufacturers lead to limited open functions, solidified functions and limited use, and cannot meet the personalized requirements of users and the control requirements of intelligent households.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a universal communication interface of a gas heating water heater, which is convenient for the gas heating water heater to be connected into an intelligent household platform and for the intelligent household platform to effectively monitor the gas heating water heater.
The invention adopts the following technical proposal to realize the aim: the universal communication interface for the gas heating water heater is characterized by comprising a TTL UART hardware interface which is powered by a main control board; the general modbus protocol framework and RTU message type are adopted, address point location parameters are clearly disclosed, functions and data of the wall-mounted furnace are opened to the maximum extent, and a user freely selects the required functions and data according to a protocol.
As a further explanation of the above scheme, the UART hardware interface is converted into a universal EIA-485 hardware interface by connecting with a TTL-to-485 module.
Further, the main control board is provided with an MCU1 and a power module, and the main control board MCU1 is responsible for collecting data of each sensor and controlling each executive component; the universal communication interface is arranged on a key display control board, the key display control board adopts a double serial port MCU2, the serial port of the main control board MCU1 is connected with the serial port 1 of the key display control board MCU2, and the two are in bidirectional communication; the universal communication interface is connected with the serial port 2 of the key display control board MCU2, is connected with a power module on the main control board, is in bidirectional communication with external communication equipment, performs data transmission, and provides power for the external communication equipment.
Further, the universal communication interface is a four-pin interface, and the interface pin sequence is regulated to be a +5V power pin, a data sending pin, a command receiving pin and a GND grounding pin.
Further, the address point parameter table of the protocol comprises data names, register numbers, data types, data descriptions and readable and writable conditions, wherein the data names comprise parameters of on-off machine, a fan, a water pump, heating set temperature, heating water outlet temperature, bathroom set temperature, bathroom water outlet temperature, environment temperature, gas quantity, running time and heating return difference temperature; the readable and writable data are on-off, heating set temperature, bathroom set temperature heating return difference temperature, and the rest parameters are read-only data.
Further, the protocol also specifies the baud rate and byte format of the communication.
Further, after the user selects the external communication equipment, the external communication equipment is connected with a general communication interface of the gas heating water heater, the user analyzes the demand data and compiles the control command according to the programming of the published protocol, and stable data transmission is established with the key display control board; after the operation parameters of the gas heating water heater are transmitted to the key display control board by the main control board, the operation parameters are compiled by the key display control board and then transmitted to external communication equipment through the universal communication interface; the external communication equipment sends the command information to a key display control board of the gas heating water heater through the universal communication interface, and the command information is sent to a main control board for execution after being analyzed and processed by the key display control board.
The beneficial effects achieved by adopting the technical proposal of the invention are as follows:
the invention adopts the universal communication interface, thereby facilitating the convenient connection of users; the user can freely select external communication equipment and an intelligent home platform, and check the operation parameters of the gas heating water heater and control the gas heating water heater according to a modbus protocol and an address point parameter table, so that the self-individuation requirement and the control requirement of the intelligent home are met; two sets of mutually independent communication protocols are adopted to realize confidentiality and exclusive of the communication protocols between the main controller and the key display controller of the manufacturer; the universal communication interface adopts a universal modbus protocol framework, so that the universality is improved, and the access difficulty is reduced.
Drawings
FIG. 1 is a schematic diagram of a system connection of the present invention;
fig. 2 is a schematic diagram of system connection after using the TTL-to-485 module according to the present invention.
Reference numerals illustrate: s1, a main control board, S2, a key display control board, S3, a TTL-to-485 module, S11, a serial port of the main control board MCU1, S12, a power module, S21, a serial port 1 of the key display control board MCU2, S22, a serial port 2 of the key display control board MCU2, S23 and a general communication interface.
Detailed Description
The present technical solution is described in detail below with reference to specific embodiments.
Example 1
As shown in FIG. 1, the invention comprises the adoption of TTL UART hardware interfaces, and power is supplied by a main control board S1; the general modbus protocol framework and RTU message type are adopted, address point location parameters are clearly disclosed, functions and data of the wall-mounted furnace are opened to the maximum extent, and a user freely selects the required functions and data according to a protocol. In the embodiment, a peripheral circuit of a main control board is electrically connected with each sensor and each executive component (such as a fan, a water pump and a fuel gas proportional valve) of the fuel gas heating water heater, the main control board is provided with an MCU1 and a power supply module, and the main control board MCU1 is responsible for collecting data of each sensor and controlling each executive component; the universal communication interface is arranged on a key display control board S2, the key display control board adopts a double serial port MCU2, a serial port S11 of a main control board MCU1 is connected with a serial port 1S21 of the key display control board MCU2, and the two are in bidirectional communication; the universal communication interface is connected with the serial port 2S22 of the key display control board MCU2, and is connected with the power module S12 on the main control board, the universal communication interface S23 is in bidirectional communication with external communication equipment, data transmission is carried out, and power is provided for the external communication equipment.
The address point position parameter table of the general communication interface protocol comprises data names, register numbers, data types, data description and readable and writable conditions, wherein the data names comprise parameters such as on-off, fans, water pumps, heating set temperatures, heating water outlet temperatures, bathroom set temperatures, bathroom water outlet temperatures, environment temperatures, gas amounts, operation time, heating return difference temperatures and the like. The readable and writable data are related to on-off machine, heating set temperature, bathroom set temperature heating return difference temperature, and the residual parameters are read-only data. The protocol also specifies the baud rate and byte format of the communication. The universal communication interface is a four-pin interface, and provides a specified interface pin sequence, namely a +5V power pin, a data sending pin, a command receiving pin and a GND grounding pin.
After the user selects the external communication equipment, the external communication equipment is connected with a general communication interface of the gas heating water heater. And the user analyzes the demand data and compiles the control command according to the disclosed protocol programming, and establishes stable data transmission with the key display control panel.
After the operation parameters of the gas heating water heater are transmitted to the key display control board by the main control board, the operation parameters are compiled by the key display control board and then transmitted to external communication equipment through the universal communication interface; the external communication equipment sends the command information to a key display control board of the gas heating water heater through the universal communication interface, and the command information is sent to a main control board for execution after being analyzed and processed by the key display control board.
Example 2
In this embodiment, as shown in fig. 2, when a communication device adopting an EIA-485 interface is to be externally connected, a TTL-485 module S3 may be connected between the universal communication interface and the communication device, so as to complete the matching of the external communication device.
Compared with the prior art, the key display control board adopts the double serial ports MCU, one serial port is connected with the universal communication interface and is specially used for data transmission with communication equipment, the function of the gas heating water heater is opened while the communication protocol between the main controller of the manufacturer and the key display controller is not disclosed, the gas heating water heater is conveniently connected to the intelligent household platform, and the intelligent household platform can effectively monitor the gas heating water heater.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present invention.
Claims (5)
1. The universal communication interface for the gas heating water heater is characterized by comprising a TTL UART hardware interface which is powered by a main control board; adopting a general modbus protocol framework, RTU message types, and clearly disclosing address point location parameters, and enabling a user to freely select required functions and data according to a protocol; the UART hardware interface is converted into a universal EIA-485 hardware interface by connecting with a TTL-to-485 module; the main control board is provided with an MCU1 and a power supply module, and the main control board MCU1 is responsible for collecting data of each sensor and controlling each executive component; the universal communication interface is arranged on a key display control board, the key display control board adopts a double serial port MCU2, the serial port of the main control board MCU1 is connected with the serial port 1 of the key display control board MCU2, and the two are in bidirectional communication; the universal communication interface is connected with the serial port 2 of the key display control board MCU2, is connected with a power module on the main control board, is in bidirectional communication with external communication equipment, performs data transmission, and provides power for the external communication equipment.
2. The universal communication interface for gas heating water heater according to claim 1, wherein the universal communication interface is a four-pin interface, and the interface pin sequence is defined as +5v power pin, data transmitting pin, command receiving pin, GND grounding pin.
3. The universal communication interface of the gas heating water heater according to claim 1, wherein the address point parameter table of the protocol comprises data names, register numbers, data types, data descriptions and readable and writable conditions, and the data names comprise on-off, fans, water pumps, heating set temperatures, heating water outlet temperatures, bathroom set temperatures, bathroom water outlet temperatures, environment temperatures, gas amounts, running time and heating return difference temperature parameters; the readable and writable data are on-off, heating set temperature, bathroom set temperature heating return difference temperature, and the rest parameters are read-only data.
4. A gas heating water heater universal communication interface as claimed in claim 1 or claim 3, wherein the protocol specifies the baud rate and byte format of the communication.
5. The universal communication interface of the gas heating water heater according to claim 1, wherein after the user selects the external communication equipment, the universal communication interface is connected with the universal communication interface of the gas heating water heater, the user analyzes the demand data and compiles the control command according to the disclosed protocol programming, and stable data transmission is established with the key display control board; after the operation parameters of the gas heating water heater are transmitted to the key display control board by the main control board, the operation parameters are compiled by the key display control board and then transmitted to external communication equipment through the universal communication interface; the external communication equipment sends the command information to a key display control board of the gas heating water heater through the universal communication interface, and the command information is sent to a main control board for execution after being analyzed and processed by the key display control board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011442323.8A CN112484314B (en) | 2020-12-11 | 2020-12-11 | Universal communication interface for gas heating water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011442323.8A CN112484314B (en) | 2020-12-11 | 2020-12-11 | Universal communication interface for gas heating water heater |
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| Publication Number | Publication Date |
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| CN112484314A CN112484314A (en) | 2021-03-12 |
| CN112484314B true CN112484314B (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011442323.8A Active CN112484314B (en) | 2020-12-11 | 2020-12-11 | Universal communication interface for gas heating water heater |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004714A (en) * | 2010-12-10 | 2011-04-06 | 南京科远自动化集团股份有限公司 | General type serial bus communication device |
| CN105242601A (en) * | 2015-10-09 | 2016-01-13 | 贵州智达科技有限责任公司 | Multi-compatibility bidirectional communication protocol of serial port of electric warming oven |
-
2020
- 2020-12-11 CN CN202011442323.8A patent/CN112484314B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004714A (en) * | 2010-12-10 | 2011-04-06 | 南京科远自动化集团股份有限公司 | General type serial bus communication device |
| CN105242601A (en) * | 2015-10-09 | 2016-01-13 | 贵州智达科技有限责任公司 | Multi-compatibility bidirectional communication protocol of serial port of electric warming oven |
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| CN112484314A (en) | 2021-03-12 |
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