CN203931071U - Multi-media classroom fire display panel bus communication circuit - Google Patents
Multi-media classroom fire display panel bus communication circuit Download PDFInfo
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- CN203931071U CN203931071U CN201420252850.6U CN201420252850U CN203931071U CN 203931071 U CN203931071 U CN 203931071U CN 201420252850 U CN201420252850 U CN 201420252850U CN 203931071 U CN203931071 U CN 203931071U
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Abstract
A kind of multi-media classroom fire display panel bus communication circuit, relate to automatic fire alarm technical field, by touch key-press circuit, color liquid crystal interface circuit, liquid crystal video memory circuit, fire alarm bus communication circuit, microcontroller, the status indicator lamp circuit being connected with microcontroller, loudspeaker driving circuit and power circuit composition, described bus communication circuit is used for and fire alarm control unit communication, receives the fire alarm information that fire alarm control unit sends; The utility model is simple in structure, reasonable in design, and communication signal is stable, can meet the needs that fire display panel works long hours, and fire alarm information is accurately provided.
Description
Technical field
The utility model relates to automatic fire alarm technical field, is specifically related to a kind of fire display panel showing for fire alarm information.
Background technology
In automatic fire alarm system, at each storey setting fire display panel, fire alarm information is shown and played an important role in real time, can inquire about easily warning message, beautiful display alarm information intuitively, it is fire display panel function important indicator, existing fire display panel keyboard all adopts mechanical key, and display adopts charactron or common monochromatic LCD liquid crystal, and communicating circuit easily breaks down, and comparatively complicated, have much room for improvement.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of and forms simply, stable multi-media classroom fire display panel bus communication circuit.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of multi-media classroom fire display panel, comprise touch key-press testing circuit, color liquid crystal interface circuit, liquid crystal video memory circuit, bus communication circuit and microcontroller, also comprise the status indicator lamp circuit, loudspeaker driving circuit and the power circuit that are connected with microcontroller;
Described touch key-press testing circuit, for detection of key-press input, offers microcontroller by key-press status; Described color liquid crystal interface circuit is used for connecting LCD liquid crystal display;
Described liquid crystal video memory circuit is temporary for LCD liquid crystal display information, microcontroller is refreshed to the needed data of liquid crystal display and keep in;
Described status indicator lamp circuit is used to indicate current display panel alarm condition, and described loudspeaker driving circuit is used for driving control loudspeaker to send various alarm sounds;
Described power circuit is used to touch key-press circuit, color liquid crystal interface circuit, liquid crystal video memory circuit, microcontroller that power supply is provided;
Described bus communication circuit is used for and fire alarm control unit communication, receives the fire alarm information that fire alarm control unit sends;
Described microcontroller is used for monitoring touch key-press circuit button output state, receive the fire alarm control unit warning message that bus communication circuit obtains, control LCD liquid crystal display, control indicator light circuit, control loudspeaker driving circuit, makes loudspeaker send correct alarm sound.
Described bus communication circuit comprises communicating circuit, bus receiving circuit, bus data return circuit and power-supply circuit;
Described communicating circuit comprises the 17 resistance R the 17, the 18 resistance R the 18, the 22 capacitor C the 22, the 23 capacitor C 23, the 6th road and bridge diode V6 and the 7th road and bridge diode V7, the 3rd output pin of described the 17 resistance R 17 one end connecting interface socket X1B, the other end is connected to the 6th road and bridge diode V6 and the 22 capacitor C 22, the 4th output pin of described the 18 resistance R 18 one end connecting interface socket X1B, the other end is connected to the 7th road and bridge diode V7 and the 23 capacitor C 23;
Described bus receiving circuit comprises the tenth resistance R 10, the 19 resistance R 19, the 22 resistance R 22, the 25 resistance R 25, the 6th resistance R 6, the 14 capacitor C 14, the 9th triode V9, the 12 triode V12 and the 3rd driver N3, after described the 19 resistance R 19 is in parallel with the 14 capacitor C 14, one end is connected to the 6th road and bridge diode V6, the other end is connected to the 22 resistance R 22, described the 22 resistance R 22 other ends are parallel with the 25 resistance R 25, the 9th triode V9 and the 12 triode V12, the collector of described the 12 triode V12 connects the 2nd output pin of the 3rd driver N3, the 4th output pin of described the 3rd driver N3 connects the 6th resistance R 6, the 1st input pin of described the 3rd driver N3 connects the tenth resistance R 10,
Described bus data return circuit comprises the 32 resistance R 32, the 33 resistance R 33, the 21 resistance R 21, the 14 triode V14, the 8th capacitor C 8, the 4th driver N4, the 37 resistance R the 37 and the 25 capacitor C 25, after described the 33 resistance R 33 is in parallel with the 21 R21 resistance, be connected to the base stage of the 14 triode V14, the collector of described the 14 triode V14 is connected with the 32 resistance R 32, described the 33 resistance R 33 other ends are connected to the 3rd output pin of the 4th driver N4, the 4th output pin of described the 4th driver N4 connects the tenth resistance R 10, after described the 37 resistance R 37 one end are in parallel with the 25 capacitor C 25, meet the 4th driver N4,
Described power-supply circuit comprises the 20 resistance R 20, the 23 resistance R 23, the 8th diode V8, the 13 triode V13, stabilivolt V17, the 24 capacitor C 24 and the 7th capacitor C 7, described the 8th diode V8 connects with the 20 resistance R 20 afterwards and the 24 capacitor C 24, the 7th capacitor C the 7 and the 23 resistance R 23 parallel connections, described the 23 resistance R 23 connects respectively base stage and the stabilivolt V17 of the 13 triode V13, the emitter of described the 13 triode V13 connects the 8th capacitor C 8, the collector of described the 13 triode V13 connects the 20 resistance R 20,
Described status indicator lamp circuit comprises light emitting diode V19～V24, current-limiting resistance R48～R53, and described current-limiting resistance R48～R53 is connected with light emitting diode V19～V24 respectively;
Described loudspeaker driving circuit comprises driving the 16 triode V16, the 57 resistance R the 57 and the 11 socket X11, described the 16 triode V16 base stage connects the 56 resistance R 56, grounded emitter, collector connects one end of the 57 resistance R 57, described the 57 resistance R 57 another termination the 11 socket X11.
The beneficial effects of the utility model are: the utility model is simple in structure, reasonable in design, and communication signal is stable, can meet the needs that fire display panel works long hours, and fire alarm information is accurately provided.
Brief description of the drawings
Fig. 1 is the utility model theory diagram;
Fig. 2 is the utility model bus communication circuit schematic diagram.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, a kind of multi-media classroom fire display panel, comprise touch key-press circuit, color liquid crystal interface circuit, liquid crystal video memory circuit, bus communication circuit and microcontroller, also comprise the status indicator lamp circuit, loudspeaker driving circuit and the power circuit that are connected with microcontroller; Touch key-press circuit, for detection of key-press input, offers microcontroller by key-press status; Color liquid crystal interface circuit is used for connecting LCD liquid crystal display; Liquid crystal video memory circuit is temporary for LCD liquid crystal display information, microcontroller is refreshed to the needed data of liquid crystal display and keep in; Status indicator lamp circuit is used to indicate current display panel alarm condition, and loudspeaker driving circuit is used for driving control loudspeaker to send various alarm sounds; Power circuit is used to touch key-press circuit, color liquid crystal interface circuit, liquid crystal video memory circuit, microcontroller that power supply is provided; Bus communication circuit is used for and fire alarm control unit communication, receives the fire alarm information that fire alarm control unit sends; Microcontroller is used for monitoring touch key-press circuit button output state, receive the fire alarm control unit warning message that bus communication circuit obtains, control LCD liquid crystal display, control indicator light circuit, control loudspeaker driving circuit, makes loudspeaker send correct alarm sound.
As shown in Figure 2, bus communication circuit comprises communicating circuit, bus receiving circuit, bus data return circuit and power-supply circuit;
Communicating circuit comprises the 17 resistance R the 17, the 18 resistance R the 18, the 22 capacitor C the 22, the 23 capacitor C 23, the 6th road and bridge diode V6 and the 7th road and bridge diode V7, the 3rd output pin of the 17 resistance R 17 one end connecting interface socket X1B, the other end is connected to the 6th road and bridge diode V6 and the 22 capacitor C 22, the 4th output pin of described the 18 resistance R 18 one end connecting interface socket X1B, the other end is connected to the 7th road and bridge diode V7 and the 23 capacitor C 23;
Bus receiving circuit comprises the tenth resistance R 10, the 19 resistance R 19, the 22 resistance R 22, the 25 resistance R 25, the 6th resistance R 6, the 14 capacitor C 14, the 9th triode V9, the 12 triode V12 and the 3rd driver N3, after the 19 resistance R 19 is in parallel with the 14 capacitor C 14, one end is connected to the 6th road and bridge diode V6, the other end is connected to the 22 resistance R 22, described the 22 resistance R 22 other ends are parallel with the 25 resistance R 25, the 9th triode V9 and the 12 triode V12, the collector of the 12 triode V12 connects the 2nd output pin of the 3rd driver N3, the 4th output pin of the 3rd driver N3 connects the 6th resistance R 6, the 1st input pin of the 3rd driver N3 connects the tenth resistance R 10,
Bus data return circuit comprises the 32 resistance R 32, the 33 resistance R 33, the 21 resistance R 21, the 14 triode V14, the 8th capacitor C 8, the 4th driver N4, the 37 resistance R the 37 and the 25 capacitor C 25, after the 33 resistance R 33 is in parallel with the 21 R21 resistance, be connected to the base stage of the 14 triode V14, the collector of the 14 triode V14 is connected with the 32 resistance R 32, the 33 resistance R 33 other ends are connected to the 3rd output pin of the 4th driver N4, the 4th output pin of the 4th driver N4 connects the tenth resistance R 10, after described the 37 resistance R 37 one end are in parallel with the 25 capacitor C 25, meet the 4th driver N4,
Power-supply circuit comprises the 20 resistance R 20, the 23 resistance R 23, the 8th diode V8, the 13 triode V13, stabilivolt V17, the 24 capacitor C 24 and the 7th capacitor C 7, it is in parallel with the 24 capacitor C 24, the 7th capacitor C the 7 and the 23 resistance R 23 after the 8th diode V8 connects with the 20 resistance R 20, the 23 resistance R 23 connects respectively base stage and the stabilivolt V17 of the 13 triode V13, the collector that the emitter of the 13 triode V13 meets the 8th capacitor C 8, the 13 triode V13 connects the 20 resistance R 20.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. a multi-media classroom fire display panel bus communication circuit, is characterized in that: comprise communicating circuit, bus receiving circuit, bus data return circuit and power-supply circuit;
Described communicating circuit comprises the 17 resistance (R17), the 18 resistance (R18), the 22 electric capacity (C22), the 23 electric capacity (C23), the 6th road and bridge diodes (V6) and the 7th road and bridge diodes (V7), the 3rd output pin of described the 17 resistance (R17) one end connecting interface socket (X1B), the other end is connected to the 6th road and bridge diodes (V6) and the 22 electric capacity (C22), the 4th output pin of described the 18 resistance (R18) one end connecting interface socket (X1B), the other end is connected to the 7th road and bridge diodes (V7) and the 23 electric capacity (C23),
Described bus receiving circuit comprises the tenth resistance (R10), the 19 resistance (R19), the 22 resistance (R22), the 25 resistance (R25), the 6th resistance (R6), the 14 electric capacity (C14), the 9th triode (V9), the 12 triode (V12) and the 3rd photoelectrical coupler (N3), after described the 19 resistance (R19) is in parallel with the 14 electric capacity (C14), one end is connected to the 6th road and bridge diodes (V6), the other end is connected to the 22 resistance (R22), described the 22 resistance (R22) other end is parallel with the 25 resistance (R25), the 9th triode (V9) and the 12 triode (V12), the collector of described the 12 triode (V12) connects the 2nd output pin of the 3rd photoelectrical coupler (N3), the 4th output pin of described the 3rd photoelectrical coupler (N3) connects the 6th resistance (R6), the 1st input pin of described the 3rd photoelectrical coupler (N3) connects the tenth resistance (R10),
Described bus data return circuit comprises the 32 resistance (R32), the 33 resistance (R33), the 21 resistance (R21), the 14 triode (V14), the 8th electric capacity (C8), the 4th photoelectrical coupler (N4), the 37 resistance (R37) and the 25 electric capacity (C25), after described the 33 resistance (R33) is in parallel with the 21 (R21) resistance, be connected to the base stage of the 14 triode (V14), the collector of described the 14 triode (V14) is connected with the 32 resistance (R32), described the 33 resistance (R33) other end is connected to the 3rd output pin of the 4th photoelectrical coupler (N4), the 4th output pin of described the 4th photoelectrical coupler (N4) connects the tenth resistance (R10), after described the 37 resistance (R37) one end is in parallel with the 25 electric capacity (C25), connect the 4th photoelectrical coupler (N4),
Described power-supply circuit comprises the 20 resistance (R20), the 23 resistance (R23), the 8th diode (V8), the 13 triode (V13), stabilivolt (V17), the 24 electric capacity (C24) and the 7th electric capacity (C7), described the 8th diode (V8) is connected with the 20 resistance (R20) afterwards and the 24 electric capacity (C24), the 7th electric capacity (C7) and the 23 resistance (R23) parallel connection, described the 23 resistance (R23) connects respectively base stage and the stabilivolt (V17) of the 13 triode (V13), the emitter of described the 13 triode (V13) connects the 8th electric capacity (C8), the collector of described the 13 triode (V13) connects the 20 resistance (R20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420252850.6U CN203931071U (en) | 2014-05-16 | 2014-05-16 | Multi-media classroom fire display panel bus communication circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420252850.6U CN203931071U (en) | 2014-05-16 | 2014-05-16 | Multi-media classroom fire display panel bus communication circuit |
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| Publication Number | Publication Date |
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| CN203931071U true CN203931071U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420252850.6U Expired - Fee Related CN203931071U (en) | 2014-05-16 | 2014-05-16 | Multi-media classroom fire display panel bus communication circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109389790A (en) * | 2018-11-08 | 2019-02-26 | 深圳市泛海三江电子股份有限公司 | Two-bus acousto-optic alarm circuit |
-
2014
- 2014-05-16 CN CN201420252850.6U patent/CN203931071U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109389790A (en) * | 2018-11-08 | 2019-02-26 | 深圳市泛海三江电子股份有限公司 | Two-bus acousto-optic alarm circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150516 |
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| EXPY | Termination of patent right or utility model |