CN102608936B - Method and system for controlling communication between control main board and display panel of water heater - Google Patents
Method and system for controlling communication between control main board and display panel of water heater Download PDFInfo
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- CN102608936B CN102608936B CN201210076101.8A CN201210076101A CN102608936B CN 102608936 B CN102608936 B CN 102608936B CN 201210076101 A CN201210076101 A CN 201210076101A CN 102608936 B CN102608936 B CN 102608936B
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Abstract
The invention relates to a control part of a normal AC(Alternating Current)-powered full-automatic forced exhaust gas instantaneous water heater, more specifically, relates to a method and a system for controlling communication between a control main board and a display panel of a water heater. The method for controlling communication between the control main board and the display panel of the water heater comprises the following steps that: the control main board transmits state data to the display panel through a second data line while transmitting a clock signal to the display panel through a clock line; after the display panel accepts the state data transmitted by the control main board, if the display panel has no keying operation, the display panel transmits one-bit response data to the control main board through a first data line; and if the display panel has the keying operation, the display panel transits the keying operation data to the control main board through the first data line. The system for controlling communication in the invention has the advantages of simple structure, high reliability, strong anti-interference performance and long communication distance; and the system for controlling communication is matched with the method for controlling communication, thus, control of communication between the control main board and the display panel is realized, and one control main board can simultaneously communicate with multiple display panels.
Description
Technical field
The present invention and a kind of control assembly that adopts the common Full-automatic forced exhaust fuel gas fast water heater of Alternating Current Power Supply, control mainboard and display panel communicating control method and system more specifically to a kind of water heater.
Background technology
The Full-automatic forced exhaust fuel gas fast water heater of domestic existing employing Alternating Current Power Supply, include and control mainboard, display panel, control mainboard and take single-chip microcomputer as core, combine with control software simultaneously, the water temperature of water heater, duty are realized controlling and detect; Display panel mainly demonstrates coolant-temperature gage and state.Control mainboard and generally use the modes such as serial ports, I2C with display panel communication, but these mode communication distances are not far, anti-interference more weak, and control more complicated when a control mainboard and a plurality of display panel simultaneous communications.
Utility model content
The object of the invention is to: for the problem of above-mentioned existence, provide a kind of water heater to control mainboard and display panel communicating control method.
To achieve these goals, the technical solution used in the present invention is:
Water heater is controlled mainboard and display panel communicating control method, it is characterized in that: the concrete steps of the means of communication of described control mainboard and display panel are:
(1) when control mainboard passes through clock line D3 to display panel tranmitting data register signal, by the second data line D2 to display panel status data, described status data comprises duty and the temperature value of water heater, described control mainboard when clock line D3 is high level to display panel tranmitting data register signal, described control mainboard when the second data line D2 is high level to display panel status data, the low level width of described clock line D3 is 0.5ms-1ms, and a clock period is 1ms-3ms;
(2) when display panel, accepted control mainboard and sent after status data,
If display panel is without button operation, from having accepted status data, start regularly, at 10ms place, by the first data line D1, to controlling mainboard, transmit a reply data, the deration of signal of described reply data is 2ms, controls mainboard and according to monitoring reply data, has or not to judge having that it's too late whether work being normal of display panel;
If display panel has button operation, from having accepted status data, start regularly, from 3ms, start by the first data line D1, button operation data to be transmitted to controlling mainboard;
(3) when controlling mainboard and monitored button operation data and enter, just can automatically postpone next time the time to display panel status data, and the button operation data of sending here from the first data line D1 reception display panel;
(4) when controlling mainboard and display panel all without data transmission, the first data line D1 moves high level to, and the second data line D2, clock line D3 are all pulled to low level.
Above-mentioned water heater is controlled in mainboard and display panel communicating control method, the type of described button operation data comprises " switch ", " intensification ", " cooling ", " preferentially ", the key of described " switch " is 1000, " intensification " key is 0100, " cooling " key is 0000, and " preferentially " key is 1111.
Above-mentioned water heater is controlled in mainboard and display panel communicating control method, the low level that " 0 " state in described key is front 2ms, and rear 8ms high level, the cycle is 10ms; One state is front 8ms low level, rear 2ms high level, and the cycle is also 10ms.
Water heater is controlled mainboard and display panel communication control system, comprise display panel, control mainboard, connect display panel and four pin sockets of controlling mainboard, described display panel comprises the first power supply, the first single-chip microcomputer, display, described control mainboard comprises second source, second singlechip, input control circuit, described water heater is controlled mainboard and display panel communication control system also comprises communicating circuit, and described communicating circuit specifically comprises:
(1) first single-chip microcomputer carries out the first data line of data transmission to second singlechip, second singlechip carries out the second data line of data transmission to the first single-chip microcomputer, second singlechip carries out the clock line of clock transfer to the first single-chip microcomputer, described the first single-chip microcomputer is connected with second singlechip by the first data line, the second data line and clock line respectively;
(2) first data lines, the second data line and clock line all contain transistor switching circuit, by controlling the break-make of transistor switching circuit, to make data line and clock line be high level or low level, when the first data line is low level, carry out the transmission of data-signal, when the second data line is high level, carry out the transmission of data-signal:
A, the first data line comprise the first triode, the data output end of described the first single-chip microcomputer is connected with the base stage of the first triode by the 4th resistance, the grounded emitter of the first triode, the collector of the first triode is connected with power supply with the second resistance by the 3rd resistance successively, and described collector is also connected with the data input pin of second singlechip by the tripod of four pin sockets;
B, the second data line comprise the second triode, the data output end of described second singlechip is connected with the base stage of the second triode by the tenth resistance, the grounded emitter of the second triode, the collector of the second triode is connected with power supply by the 4th pin and first resistance of the 8th resistance, four pin sockets successively, and described collector is also connected with the data input pin of the first single-chip microcomputer by the 4th pin of four pin sockets;
C, clock line line comprise the 3rd triode, the output terminal of clock of described second singlechip is connected with the base stage of the 3rd triode by the 7th resistance, the grounded emitter of the 3rd triode, the collector of the 3rd triode is connected with power supply by tripod and second resistance of the 5th resistance, four pin sockets successively, and described collector is also connected with the input end of clock of the first single-chip microcomputer by the tripod of four pin sockets.
Above-mentioned water heater is controlled in mainboard and display panel communication control system, and described the first data line carries out data transmission for the first single-chip microcomputer to second singlechip.
Above-mentioned water heater is controlled in mainboard and display panel communication control system, and described the second data line carries out data transmission for second singlechip to the first single-chip microcomputer.
Above-mentioned water heater is controlled in mainboard and display panel communication control system, and described clock line carries out clock transfer for second singlechip to the first single-chip microcomputer.
Mainboard controlled by water heater of the present invention and display panel communication control system comprises display panel and controls mainboard two large divisions, in described display panel and control mainboard, all include single-chip microcomputer, the first single-chip microcomputer in display panel and the second singlechip of controlling in mainboard are realized the transmission of signal by communicating circuit, described communicating circuit comprises that the first single-chip microcomputer carries out the first data line of data transmission to second singlechip, second singlechip carries out the second data line of data transmission to the first single-chip microcomputer, second singlechip carries out the clock line of clock transfer to the first single-chip microcomputer, described the first data line, the second data line and clock line all contain transistor switching circuit, by controlling the break-make of transistor switching circuit, to make data line and clock line be high level or low level, when being low level, the first data line carries out the transmission of data-signal, when being high level, the second data line carries out the transmission of data-signal, with respect to communication control circuit in the past, the three single data transmission lines that communicating circuit comprises have been realized and have been controlled the various information transmission between mainboard and display panel, circuit structure is simple.
Water heater is controlled mainboard and is utilized communication control system of the present invention to realize concrete communicating control method with display panel to be: control mainboard is by clock line to display panel tranmitting data register signal time, by the second data line to display panel status data.When display panel, having accepted control mainboard sends after status data, if display panel is without button operation, by the first data line, to controlling mainboard, transmit a reply data, control mainboard and according to monitoring reply data, have or not to judge having that it's too late whether work being normal of display panel; If display panel has button operation, by the first data line, button operation data are transmitted to controlling mainboard.When controlling mainboard and monitored button operation data and enter, just can automatically postpone next time the time to display panel status data, and receive from the first data line the button operation data that display panel is sent here.
Compared with prior art, beneficial effect of the present invention: communication control system of the present invention is simple in structure, reliability is high, antijamming capability is strong, communication distance is far away, water heater is controlled mainboard and is coordinated with communicating control method with the communication control system of display panel, has realized the Communication Control of controlling mainboard and display panel, also can a control mainboard and a plurality of display panel simultaneous communications.
Accompanying drawing explanation
Fig. 1 is for controlling the theory diagram of mainboard and display panel system.
Fig. 2 is the circuit diagram of display panel in the present invention.
Fig. 3 controls the circuit diagram of mainboard in the present invention.
Mark in figure: 1-the first power supply, 2-the first single-chip microcomputer, 3-display, 4-second source, 5-transformer, 6-second singlechip, 7-input control circuit, the data output end of A1-the first single-chip microcomputer, the input end of clock of A2-the first single-chip microcomputer, the data input pin of A3-the first single-chip microcomputer, the output terminal of clock of B1-second singlechip, the data input pin of B2-second singlechip, the data output end of B3-second singlechip, D1-the first data line, D2-the second data line, D3-clock line, the tripod of J3-tetra-pin sockets, the 4th pin of J4-tetra-pin sockets, V2-the first triode, V4-the second triode, V3-the 3rd triode, L1-the first inductance, L2-the second inductance, R1-the first resistance, R2-the second resistance, R3-the 3rd resistance, R4-the 4th resistance, R5-the 5th resistance, R7-the 7th resistance, R8-the 8th resistance, R10-the tenth resistance.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1
The concrete communicating control method that the present embodiment water heater is controlled mainboard and display panel is:
(1) when control mainboard passes through clock line D3 to display panel tranmitting data register signal, by the second data line D2, press the fixed cycle to display panel status data, described control mainboard when clock line D3 is high level to display panel tranmitting data register signal, control mainboard when the second data line D2 is high level to display panel status data, described status data comprises duty and the temperature value of water heater, status data is totally two bytes, described two bytes transmit by the order from a high position to low level, the first byte is state byte, the second byte is temperature value.Concrete mode is when controlling mainboard from second singlechip 6 tranmitting data register signal, control mainboard and transmit 16 status datas to display panel by the first data line D1, described control mainboard is ready to status data in the low level of clock line D3, during high level, status data is sent, display panel is when the high level of clock line D3, read the status data that control panel sends, the low level width of described clock letter signal is 0.5ms-1ms, and a clock period is 1-3ms.
(2) when display panel, accepted control mainboard and sent after status data,
If display panel is without button operation, from having accepted status data, start regularly, at 10ms place, by the first data line D1, to controlling mainboard, transmit a reply data, while sending reply data, the first data line D1 is low level, the deration of signal of described reply data is 2ms, controls mainboard and according to reply data, has or not to judge having that it's too late whether work being normal of display panel.
If display panel has button operation, from having accepted status data, start regularly, from 3ms, start by the first data line D1, button operation data to be transmitted to controlling mainboard, while transmitting button operation data, the first data line D1 is low level.The type of described button operation data comprises " switch ", " intensification ", " cooling ", " preferentially ", the key of described " switch " is 1000, " intensification " key is 0100, " cooling " key is 0000, " preferentially " key is 1111, the low level that " 0 " state in key is front 2ms, rear 8ms high level, the cycle is 10ms; One state is front 8ms low level, rear 2ms high level, and the cycle is also 10ms.
(3) when controlling mainboard and monitored button operation data and enter, just can automatically postpone next time the time to display panel status data, and the button operation data of sending here from the first data line D1 reception display panel.
When controlling mainboard and display panel all without data transmission, the first data line D1 moves high level to, and the second data line D2, clock line D3 are all pulled to low level.Utilize the communicating control method of the present embodiment to realize the various information transmission between control mainboard and display panel, when a control mainboard is connected with a plurality of display panels, connected mode connects according to the communicating circuit described in communication control system, can realize one and control mainboard and a plurality of display panel simultaneous communications.
As accompanying drawing 1, accompanying drawing 2, shown in accompanying drawing 3, water heater is controlled mainboard and display panel communication control system, comprise display panel, control mainboard, connect display panel and the four pin sockets XS that control mainboard, described display panel comprises the first power supply 1, the first single-chip microcomputer 2, display 3, described control mainboard comprises second source 4, transformer 5, second singlechip 6, input control circuit 7, described water heater is controlled mainboard and display panel communication control system also comprises communicating circuit, described communicating circuit comprises the first data line D1, the second data line D2 and clock line D3, data contact between the first single-chip microcomputer and second singlechip has independent circuit transmission, the data output end A1 of described the first single-chip microcomputer is connected with the data input pin B2 of second singlechip by the first data line D1, the data output end B3 of described second singlechip is connected with the data input pin A3 of the first single-chip microcomputer by the second data line D2, the output terminal of clock B1 of described second singlechip is connected with the input end of clock A2 of the first single-chip microcomputer by clock line D3, the first data line D1, the second data line D2 and clock line D3 contain transistor switching circuit, the first data line D1 carries out data transmission for the first single-chip microcomputer 2 to second singlechip 6, the second data line D2 carries out data transmission for second singlechip 6 to the first single-chip microcomputer 2, clock line D3 carries out clock transfer for second singlechip 6 to the first single-chip microcomputer 2.By controlling the break-make of the upper transistor switching circuit of the first data line D1, the second data line D2 and clock line D3, to make data line be high level or low level, the first data line D1 carries out the transmission of data-signal while being low level, the second data line D2 carries out the transmission of data-signal while being high level.Described the first data line D1 comprises the tripod J3 of the first triode V2, the 4th resistance R 4, the 3rd resistance R 3, the second resistance R 2, the first inductance L 1 and four pin sockets, the data output end A1 of described the first single-chip microcomputer is connected with the base stage of the first triode V2 by the 4th resistance R 4, the grounded emitter of the first triode V2, the collector of the first triode V2 is connected with power supply with the second resistance R 2 by the 3rd resistance R 3 successively, and described collector is also connected by the first inductance L 1, the tripod J3 of four pin sockets and the data input pin 5 of second singlechip successively.Described the second data line D2 comprises the second triode V4, the tenth resistance R 10, the 8th resistance R 8, the 4th pin J4 of four pin sockets, the second inductance L 2, the data output end B3 of described second singlechip is connected with the base stage of the second triode V4 by the tenth resistance R 10, the grounded emitter of the second triode V4, the collector of the second triode V4 is successively by the 8th resistance R 8, the 4th pin J4 of four pin sockets, the second inductance L 2 and the first resistance R 1 are connected with power supply, described collector is also successively by the 8th resistance R 8, the 4th pin J4 of four pin sockets, the second inductance L 2 is connected with the data input pin A3 of the first single-chip microcomputer.Described clock line D3 line comprises the 3rd triode V3, the 7th resistance R 7, the 5th resistance R 5, the tripod J3 of four pin sockets, the first inductance L 1, the second resistance R 2, the output terminal of clock B1 of described second singlechip is connected with the base stage of the 3rd triode V3 by the 7th resistance R 7, the grounded emitter of the 3rd triode V3, the collector of the 3rd triode V3 is successively by the 5th resistance R 5, the tripod J3 of four pin sockets, the first inductance L 1 and the second resistance R 2 are connected with power supply, described collector is also successively by the 5th resistance R 5, the tripod J3 of four pin sockets, the first inductance L 1 is connected with the input end of clock A2 of the first single-chip microcomputer.
The present embodiment mainly utilizes a simple communication control system in conjunction with the means of communication, to realize the various information transmission of controlling between mainboard and display panel, circuit structure is simple, data contact each other has independent circuit transmission, prevented the interference between signal, there is reliability high, antijamming capability is strong, the feature that communication distance is far away.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. water heater is controlled mainboard and display panel communicating control method, it is characterized in that: the concrete steps of the means of communication of described control mainboard and display panel are:
(1) when control mainboard passes through clock line (D3) to display panel tranmitting data register signal, by the second data line (D2) to display panel status data, described status data comprises duty and the temperature value of water heater, described control mainboard when clock line (D3) is high level to display panel tranmitting data register signal, described control mainboard when the second data line (D2) is high level to display panel status data, the low level width of described clock line (D3) is 0.5ms-1ms, and a clock period is 1ms-3ms;
(2) when display panel, accepted control mainboard and sent after status data,
If display panel, without button operation, starts regularly from having accepted status data, at 10ms place, by the first data line (D1), to controlling mainboard, transmit a reply data, the deration of signal of described reply data is 2ms;
If display panel has button operation, from having accepted status data, start regularly, from 3ms, start by the first data line (D1), button operation data to be transmitted to controlling mainboard;
(3) when controlling mainboard and monitored button operation data and enter, just can automatically postpone next time the time to display panel status data, and the button operation data of sending here from the first data line (D1) reception display panel;
(4) when controlling mainboard and display panel all without data transmission, the first data line (D1) is moved high level to, and the second data line (D2), clock line (D3) are all pulled to low level.
2. water heater according to claim 1 is controlled mainboard and display panel communicating control method, it is characterized in that: the type of described button operation data comprises " switch ", " intensification ", " cooling ", " preferentially ", the key of described " switch " is 1000, " intensification " key is 0100, " cooling " key is 0000, and " preferentially " key is 1111.
3. water heater according to claim 2 is controlled mainboard and display panel communicating control method, it is characterized in that: the low level that " 0 " state in described key is front 2ms, and rear 8ms high level, the cycle is 10ms; One state is front 8ms low level, rear 2ms high level, and the cycle is also 10ms.
4. water heater is controlled mainboard and display panel communication control system, comprise display panel, control mainboard, connect display panel and four pin sockets of controlling mainboard, described display panel comprises the first power supply (1), the first single-chip microcomputer (2), display (3), described control mainboard comprises second source (4), second singlechip (6), input control circuit (7), it is characterized in that: described water heater is controlled mainboard and display panel communication control system also comprises communicating circuit, and described communicating circuit specifically comprises:
(1) first single-chip microcomputer (2) carries out first data line (D1) of data transmission to second singlechip (6), second singlechip (6) carries out second data line (D2) of data transmission to the first single-chip microcomputer (2), second singlechip (6) carries out the clock line (D3) of clock transfer to the first single-chip microcomputer (2), described the first single-chip microcomputer (2) is connected with second singlechip (6) by the first data line (D1), the second data line (D2) and clock line (D3) respectively;
(2) first data lines (D1), the second data line (D2) and clock line (D3) all contain transistor switching circuit, by controlling the break-make of transistor switching circuit, to make data line and clock line be high level or low level, the first data line (D1) carries out the transmission of data-signal during for low level, and the second data line (D2) carries out the transmission of data-signal during for high level:
A, the first data line (D1) comprise the first triode (V2), the data output end (A1) of described the first single-chip microcomputer (2) is connected with the base stage of the first triode (V2) by the 4th resistance (R4), the grounded emitter of the first triode (V2), the collector of the first triode (V2) is connected with power supply with the second resistance (R2) by the 3rd resistance (R3) successively, and described collector is also connected by the tripod (J3) of four pin sockets and the data input pin (B2) of second singlechip (6);
B, the second data line (D2) comprise the second triode (V4), the data output end (B3) of described second singlechip (6) is connected with the base stage of the second triode (V4) by the tenth resistance (R10), the grounded emitter of the second triode (V4), the collector of the second triode (V4) is connected with power supply by the 4th pin (J4) and first resistance (R1) of the 8th resistance (R8), four pin sockets successively, and described collector is also connected with the data input pin (A3) of the first single-chip microcomputer by the 4th pin (J4) of four pin sockets;
C, clock line line (D3) comprise the 3rd triode (V3), the output terminal of clock (B1) of described second singlechip (6) is connected with the base stage of the 3rd triode (V3) by the 7th resistance (R7), the grounded emitter of the 3rd triode (V3), the collector of the 3rd triode (V3) is connected with power supply by tripod (J3) and second resistance (R2) of the 5th resistance (R5), four pin sockets successively, and described collector is also connected by the tripod (J3) of four pin sockets and the input end of clock (A2) of the first single-chip microcomputer (2).
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| CN201210076101.8A CN102608936B (en) | 2012-03-21 | 2012-03-21 | Method and system for controlling communication between control main board and display panel of water heater |
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| CN201210076101.8A CN102608936B (en) | 2012-03-21 | 2012-03-21 | Method and system for controlling communication between control main board and display panel of water heater |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108268069A (en) * | 2016-12-30 | 2018-07-10 | 北京小米移动软件有限公司 | Temprature control method, temperature control equipment and electronic equipment |
| CN107676987A (en) * | 2017-08-31 | 2018-02-09 | 广东华美骏达电器有限公司 | Fully-automatic thermostatic heater operation's plate communication system |
| CN108036518B (en) * | 2018-01-02 | 2023-07-25 | 成都前锋电子有限责任公司 | Compatibility expandable communication system of gas quick water heater |
| CN109297196B (en) * | 2018-08-22 | 2020-11-24 | 珠海格力电器股份有限公司 | Water heater control method and system and water heater |
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| CN2343525Y (en) * | 1997-12-12 | 1999-10-13 | 重庆江北区兴海机电有限责任公司 | Microcomputerized host and auxiliary computer communication type line controlled fully-automatic water heater |
| CN2735239Y (en) * | 2004-09-24 | 2005-10-19 | 广州擎天实业有限公司 | Strong current and light current isolated electromagnetic water heater controller |
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