CN102110359B - Multi-point control gas water heater communication system - Google Patents
Multi-point control gas water heater communication system Download PDFInfo
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- CN102110359B CN102110359B CN 200910264795 CN200910264795A CN102110359B CN 102110359 B CN102110359 B CN 102110359B CN 200910264795 CN200910264795 CN 200910264795 CN 200910264795 A CN200910264795 A CN 200910264795A CN 102110359 B CN102110359 B CN 102110359B
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Abstract
The invention discloses a multi-point control gas water heater communication system. In the system, dual-line bidirectional digital transmission is adopted and the system is provided with at least one remote controller, wherein remote controller decoding programs and different remote controller codes are sintered in remote control chips of all remote controllers; the widths of all the remote controller codes corresponding to high levels in digital head signals of remote controller-side output signals of all the remote control chips are different; the remote control chips are used for transmitting digital pulse signals containing the digital head signals corresponding to remote controller coded information; and the digital pulse signals are transmitted to a host control chip through the communication system and are processed, then the digital pulse signals with invariable duty ratios are transmitted, keep the duty ratios invariable through the communication system and are transmitted to the remote control chips, and the digital head signals of the received signals are decoded and determined and respond to the received signals when recognized as corresponding remote controller coded information, so that the operation of a gas water heater can be remotely controlled by a plurality of remote controllers, and the system has a simple communication circuit and a simple principle and is convenient to debug.
Description
Technical field
The present invention relates to the remote-control communication system of gas heater, especially a kind of Multipoint control communication system of gas water heater.
Background technology
Though the gas heater industry has main frame and remote controller to use two lines to carry out both-way communication, but its technology only limits to the double frequency-band two-wire system transmission range of power carrier, signal needs by transmitting behind the modulator-demodulator again, and communicating circuit and principle are complicated, and debugging is difficulty comparatively; And mostly be a point control, operate single.
Summary of the invention
In order to overcome defects, the invention provides a kind of Multipoint control communication system of gas water heater, need not to use modulator-demodulator, can realize multi-remote-controller Romote-controlled gas water-heater operation, and communicating circuit and principle are simple.
The present invention for the technical scheme that solves its technical problem and adopt is:
A kind of Multipoint control communication system of gas water heater, realize the host computer control chip of gas heater and the both-way communication between the remote controller control chip, this both-way communication mode is the transmission of two line bi-directional digitals, comprises host side signaling conversion circuit and remote controller end signal change-over circuit:
Host side signaling conversion circuit and host computer control chip transmitted in both directions, and be positioned at gas heater,
Remote controller end signal change-over circuit and remote controller control chip transmitted in both directions, and be positioned at remote controller,
Host side signaling conversion circuit and the corresponding transmitted in both directions of remote controller end signal change-over circuit;
Be provided with at least one remote controller, sintering has remote control decoding program and different remote controller codes in the remote controller control chip in each remote controller, and corresponding each remote controller codes of the high level in the head digital signal of the remote controller end output signal of each remote controller control chip is different in width; Corresponding and connect between the reversible line of the remote controller end signal change-over circuit in each remote controller;
Described host side signaling conversion circuit comprises host side signal input circuit and host side signal output apparatus, remote controller end signal change-over circuit comprises remote controller end signal input circuit and remote controller end signal output circuit, described each remote controller end output signal is after remote controller end signal output circuit is output as two line signal transmissions, be converted to corresponding host side input signal through the host side signal input circuit again and transfer to the host computer control chip, this host side input signal of host computer control die response and do respective handling after host side output signal corresponding to output; Described each host side output signal is after the host side signal output apparatus is output as two line signal transmissions; be converted into remote controller end input signal through remote controller end input circuit again and transfer to the remote controller control chip; after the remote controller control chip is decoded to the remote controller end input signal that receives and self remote controller codes contrast: be identified as same-code information and namely respond this remote controller end input signal; be identified as different coding information and then do not respond this remote controller end input signal; thereby realize that a plurality of remote controllers control gas water heater working and the accurate feedback of the gas water heater working state after the remote control separately separately; certainly also can utilize similar head signal RM; the more remote controller of expanding external; all employings are equal to the technical scheme of the remote controller RM of alternative or equivalent transformation form, are the present invention's scope required for protection.
As a further improvement on the present invention, described remote controller end signal input circuit comprises comparator and triode, described each host side output signal is after the output of host side signal output apparatus, the signal that produces more afterwards by comparator is converted to remote controller end input signal via triode, signal is through comparator and by after the triode DQ5 conversion, its duty ratio remains unchanged, but its amplitude is converted to direct current 5V.
As a further improvement on the present invention, described comparator is by first, two, three, 22,23 resistance and amplifier form, the electrode input end of described amplifier connects described host side signal output apparatus and connects power supply ground by the second resistance by the first resistance, the negative input of described amplifier connects first signal voltage and connects power supply ground by the 3rd resistance by the 22 resistance, be connected by the 23 resistance between the electrode input end of amplifier and the output, and the base stage of the output connecting triode of amplifier, the emitter of this triode connects secondary signal voltage, and the collector electrode of this triode is exported described remote controller end input signal in the remote controller control chip.
As a further improvement on the present invention, be connected with the 7th electric capacity between the electrode input end of described amplifier and the negative input, be parallel with the tenth electric capacity on described the 3rd resistance, connect signal ground by the 29 resistance and the 12 electric capacity respectively on the transmission line of the remote controller end input signal that the collector electrode of described process triode is drawn.
As a further improvement on the present invention, described triode is the positive-negative-positive transistor.
As a further improvement on the present invention, be provided with three remote controllers in the described communication system.
As a further improvement on the present invention, described host side input signal and host side output signal are all direct current 5V digital pulse signal, its unit periodic signal is: 3.072ms high level in succession 1.536ms low level is considered as " 1 ", and 1.536ms high level in succession 1.536ms low level is considered as " 0 "; Described remote controller end input signal and remote controller end output signal are all direct current 5V digital pulse signal, its unit periodic signal is: 3.072ms high level in succession 1.536ms low level is considered as " 1 ", 1.536ms high level in succession 1.536ms low level is considered as " 0 ", the signal that is host computer control chip CPU1 transmitting-receiving is identical with the signal dutyfactor of remote controller control chip CPU2 transmitting-receiving, certainly, the duty that can adjust these signals according to the model of selected host computer control chip CPU1 and remote controller control chip CPU2 is amplitude when.
As a further improvement on the present invention, described two line signal transmissions are direct current 18V digital pulse signal, its unit periodic signal is: 3.072ms high level in succession 1.536ms low level is considered as " 1 ", 1.536ms high level in succession 1.536ms low level is considered as " 0 ", the duty ratio of two line signal transmissions and host side input, output signal, the duty ratio of the input of remote controller end, output signal is all identical, certainly, the duty that can adjust this signal according to the model of selected host computer control chip CPU1 and remote controller control chip CPU2 is amplitude when.
The invention has the beneficial effects as follows: because each remote controller control chip is integrated with separately different remote coding, the remote-control communication mode is the two-way baseband transmission of two lines again, the remote controller control chip sends the digital pulse signal of the digital head signal that includes corresponding remote controller codes information, this digital pulse signal sends out the digital pulse signal that duty ratio remains unchanged after communication system is delivered to host computer control chip respective handling, and constant and deliver to the remote controller control chip and the digital head signal of received signal is decoded and judge through communication system inhibit signal duty ratio, respond this reception signal when being identified as the respective remote control coded message, thereby realize the work of a plurality of remote controller Romote-controlled gas water-heater, adopt the two-way baseband transmission mode of two lines, communicating circuit and principle are simple, and debugging is convenient.
Description of drawings
Fig. 1 is principle of the invention framework schematic diagram;
Fig. 2 is the circuit diagram of remote controller end signal input circuit of the present invention.
Embodiment
Embodiment: a kind of Multipoint control communication system of gas water heater, realize the host computer control chip CPU1 of gas heater and the both-way communication between the remote controller control chip CPU2, this both-way communication mode is the transmission of two line bi-directional digitals, comprises host side signaling conversion circuit 1 and remote controller end signal change-over circuit 2:
Host side signaling conversion circuit 1 and host computer control chip CPU1 transmitted in both directions, and be positioned at gas heater,
Remote controller end signal change-over circuit 2 and remote controller control chip CPU2 transmitted in both directions, and be positioned at remote controller,
Host side signaling conversion circuit 1 and remote controller end signal change-over circuit 2 corresponding transmitted in both directions;
Be provided with at least one remote controller, sintering has remote control decoding program and different remote controller codes among the remote controller control chip CPU2 in each remote controller, and corresponding each remote controller codes of the high level in the head digital signal of the remote controller end output signal of each remote controller control chip CPU2 is different in width; Corresponding and connect between the reversible line of the remote controller end signal change-over circuit 2 in each remote controller;
Described host side signaling conversion circuit 1 comprises host side signal input circuit and host side signal output apparatus, remote controller end signal change-over circuit 2 comprises remote controller end signal input circuit and remote controller end signal output circuit, described each remote controller end output signal is after remote controller end signal output circuit is output as two line signal transmissions, be converted to corresponding host side input signal through the host side signal input circuit again and transfer to host computer control chip CPU1, this host side input signal of host computer control die response and do respective handling after host side output signal corresponding to output; Described each host side output signal is after the host side signal output apparatus is output as two line signal transmissions; be converted into remote controller end input signal through remote controller end input circuit again and transfer to remote controller control chip CPU2; after remote controller control chip CPU2 decodes to the remote controller end input signal that receives and self remote controller codes contrast: be identified as same-code information and namely respond this remote controller end input signal; be identified as different coding information and then do not respond this remote controller end input signal; thereby realize that a plurality of remote controllers control gas water heater working and the accurate feedback of the gas water heater working state after the remote control separately separately; certainly also can utilize similar head signal RM; the more remote controller of expanding external; all employings are equal to the technical scheme of the remote controller RM of alternative or equivalent transformation form, are the present invention's scope required for protection.
Described remote controller end signal input circuit comprises comparator and triode DQ5, described each host side output signal is after the output of host side signal output apparatus, the signal that produces more afterwards by comparator is converted to remote controller end input signal via triode DQ5, signal is through comparator and by after the triode DQ5 conversion, its duty ratio remains unchanged, but its amplitude is converted to direct current 5V.
Described comparator is by first, two, three, 22,23 resistance R 1, R2, R3, R22, R23 and amplifier U2B form, the electrode input end of described amplifier U2B connects described host side signal output apparatus and meets power supply ground GND by the second resistance R 2 by the first resistance R 1, the negative input of described amplifier U2B meets first signal voltage VCC1 and meets power supply ground GND by the 3rd resistance R 3 by the 22 resistance R 22, be connected by the 23 resistance R 23 between the electrode input end of amplifier U2B and the output, and the base stage of the output connecting triode DQ5 of amplifier U2B, the emitter of this triode DQ5 connects secondary signal voltage VCC, and the collector electrode of this triode DQ5 is exported described remote controller end input signal in remote controller control chip CPU2.
Be connected with the 7th capacitor C 7 between the electrode input end of described amplifier U2B and the negative input, be parallel with the tenth capacitor C 10 on described the 3rd resistance R 3, meet signal ground SGND by the 29 resistance R 29 and the 12 capacitor C 12 respectively on the transmission line of the remote controller end input signal that the collector electrode of described process triode DQ5 is drawn.
Described triode DQ5 is the positive-negative-positive transistor.
Be provided with three remote controllers in the described communication system.
Described host side input signal and host side output signal are all direct current 5V digital pulse signal, and its unit periodic signal is: 3.072ms high level in succession 1.536ms low level is considered as " 1 ", and 1.536ms high level in succession 1.536ms low level is considered as " 0 "; Described remote controller end input signal and remote controller end output signal are all direct current 5V digital pulse signal, its unit periodic signal is: 3.072ms high level in succession 1.536ms low level is considered as " 1 ", 1.536ms high level in succession 1.536ms low level is considered as " 0 ", the signal that is host computer control chip CPU1 transmitting-receiving is identical with the signal dutyfactor of remote controller control chip CPU2 transmitting-receiving, certainly, the duty that can adjust these signals according to the model of selected host computer control chip CPU 1 and remote controller control chip CPU2 is amplitude when.
Described two line signal transmissions are direct current 18V digital pulse signal, its unit periodic signal is: 3.072ms high level in succession 1.536ms low level is considered as " 1 ", 1.536ms high level in succession 1.536ms low level is considered as " 0 ", the duty ratio of two line signal transmissions and host side input, output signal, the duty ratio of the input of remote controller end, output signal is all identical, certainly, the duty that can adjust this signal according to the model of selected host computer control chip CPU1 and remote controller control chip CPU2 is amplitude when.
Because each remote controller control chip is integrated with separately different remote coding, the remote-control communication mode is the two-way baseband transmission of two lines again, the remote controller control chip sends the digital pulse signal of the digital head signal that includes corresponding remote controller codes information, this digital pulse signal sends out the digital pulse signal that duty ratio remains unchanged after communication system is delivered to host computer control chip respective handling, and constant and deliver to the remote controller control chip and the digital head signal of received signal is decoded and judge through communication system inhibit signal duty ratio, respond this reception signal when being identified as the respective remote control coded message, thereby realize the work of a plurality of remote controller Romote-controlled gas water-heater, adopt the two-way baseband transmission mode of two lines, communicating circuit and principle are simple, and debugging is convenient.
Claims (8)
1. Multipoint control communication system of gas water heater, realize the host computer control chip (CPU1) of gas heater and the both-way communication between the remote controller control chip (CPU2), it is characterized in that: this both-way communication mode is the transmission of two line bi-directional digitals, comprises host side signaling conversion circuit (1) and remote controller end signal change-over circuit (2):
Host side signaling conversion circuit (1) and host computer control chip (CPU1) transmitted in both directions, and be positioned at gas heater,
Remote controller end signal change-over circuit (2) and remote controller control chip (CPU2) transmitted in both directions, and be positioned at remote controller,
Host side signaling conversion circuit (1) and the corresponding transmitted in both directions of remote controller end signal change-over circuit (2);
Be provided with at least one remote controller, sintering has remote control decoding program and different remote controller codes in the remote controller control chip (CPU2) in each remote controller, and corresponding each remote controller codes of the high level in the head digital signal of the remote controller end output signal of each remote controller control chip (CPU2) is different in width; Corresponding and connect between the reversible line of the remote controller end signal change-over circuit (2) in each remote controller;
Described host side signaling conversion circuit (1) comprises host side signal input circuit and host side signal output apparatus, remote controller end signal change-over circuit (2) comprises remote controller end signal input circuit and remote controller end signal output circuit, described each remote controller end output signal is after remote controller end signal output circuit is output as two line signal transmissions, be converted to corresponding host side input signal through the host side signal input circuit again and transfer to host computer control chip (CPU1), this host side input signal of host computer control die response and do respective handling after host side output signal corresponding to output; Described each host side output signal is after the host side signal output apparatus is output as two line signal transmissions, be converted into remote controller end input signal through remote controller end input circuit again and transfer to remote controller control chip (CPU2), after remote controller control chip (CPU2) is decoded to the remote controller end input signal that receives and self remote controller codes contrast: be identified as same-code information and namely respond this remote controller end input signal, be identified as different coding information and then do not respond this remote controller end input signal.
2. Multipoint control communication system of gas water heater according to claim 1, it is characterized in that: described remote controller end signal input circuit comprises comparator and triode (DQ5), described each host side output signal is after the output of host side signal output apparatus, and the signal that produces more afterwards by comparator is converted to remote controller end input signal via triode (DQ5).
3. Multipoint control communication system of gas water heater according to claim 2, it is characterized in that: described comparator is by first, two, three, 22,23 resistance (R1, R2, R3, R22, R23) and amplifier (U2B) form, the electrode input end of described amplifier (U2B) connects described host side signal output apparatus and connects power supply ground (GND) by the second resistance (R2) by the first resistance (R1), the negative input of described amplifier (U2B) connects first signal voltage (VCC1) and connects power supply ground (GND) by the 3rd resistance (R3) by the 22 resistance (R22), be connected by the 23 resistance (R23) between the electrode input end of amplifier (U2B) and the output, and the base stage of the output connecting triode (DQ5) of amplifier (U2B), the emitter of this triode (DQ5) connects secondary signal voltage (VCC), and the collector electrode of this triode (DQ5) is exported described remote controller end input signal in remote controller control chip (CPU2).
4. Multipoint control communication system of gas water heater according to claim 3, it is characterized in that: be connected with the 7th electric capacity (C7) between the electrode input end of described amplifier (U2B) and the negative input, be parallel with the tenth electric capacity (C10) on described the 3rd resistance (R3), connect signal ground (SGND) by the 29 resistance (R29) and the 12 electric capacity (C12) respectively on the transmission line of the remote controller end input signal that the collector electrode of described process triode (DQ5) is drawn.
5. Multipoint control communication system of gas water heater according to claim 3, it is characterized in that: described triode (DQ5) is the positive-negative-positive transistor.
6. Multipoint control communication system of gas water heater according to claim 1 is characterized in that: be provided with three remote controllers in the described communication system.
7. Multipoint control communication system of gas water heater according to claim 1, it is characterized in that: described host side input signal and host side output signal are all direct current 5V digital pulse signal, its unit periodic signal is: 3.072ms high level in succession 1.536ms low level is considered as " 1 ", and 1.536ms high level in succession 1.536ms low level is considered as " 0 "; Described remote controller end input signal and remote controller end output signal are all direct current 5V digital pulse signal, its unit periodic signal is: 3.072ms high level in succession 1.536ms low level is considered as " 1 ", and 1.536ms high level in succession 1.536ms low level is considered as " 0 ".
8. Multipoint control communication system of gas water heater according to claim 1, it is characterized in that: described two line signal transmissions are direct current 18V digital pulse signal, its unit periodic signal is: 3.072ms high level in succession 1.536ms low level is considered as " 1 ", and 1.536ms high level in succession 1.536ms low level is considered as " 0 ".
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| CN 200910264795 CN102110359B (en) | 2009-12-28 | 2009-12-28 | Multi-point control gas water heater communication system |
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| CN 200910264795 CN102110359B (en) | 2009-12-28 | 2009-12-28 | Multi-point control gas water heater communication system |
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| CN102110359B true CN102110359B (en) | 2013-03-20 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201246896Y (en) * | 2008-06-05 | 2009-05-27 | 李书运 | Temperature adjusting system of water heater |
| CN201355126Y (en) * | 2009-02-20 | 2009-12-02 | 刘学 | Water heater control system |
| CN201571067U (en) * | 2009-12-28 | 2010-09-01 | 樱花卫厨（中国）股份有限公司 | Multipoint control communication system of gas water heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6900736B2 (en) * | 2000-12-07 | 2005-05-31 | Allied Innovations, Llc | Pulse position modulated dual transceiver remote control |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201246896Y (en) * | 2008-06-05 | 2009-05-27 | 李书运 | Temperature adjusting system of water heater |
| CN201355126Y (en) * | 2009-02-20 | 2009-12-02 | 刘学 | Water heater control system |
| CN201571067U (en) * | 2009-12-28 | 2010-09-01 | 樱花卫厨（中国）股份有限公司 | Multipoint control communication system of gas water heater |
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| CN102110359A (en) | 2011-06-29 |
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