CN2891134Y - Power line carrier time-controlled music bell - Google Patents
Power line carrier time-controlled music bell Download PDFInfo
- Publication number
- CN2891134Y CN2891134Y CN 200520126589 CN200520126589U CN2891134Y CN 2891134 Y CN2891134 Y CN 2891134Y CN 200520126589 CN200520126589 CN 200520126589 CN 200520126589 U CN200520126589 U CN 200520126589U CN 2891134 Y CN2891134 Y CN 2891134Y
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- China
- Prior art keywords
- power line
- line carrier
- output
- circuit
- music bell
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- Expired - Fee Related
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Abstract
The utility model discloses a power line carrier timed music bell comprising a timed device 1 and a sound box 5, wherein the output of the timed device 1 is connected with the input of a power line carrier emitter circuit 2, the output of the power line carrier emitter circuit 2 is connected with the power line 3 connected with a power line carrier receiving circuit 4, the output of the power line carrier receiving circuit 4 is connected with the sound box 5, and the timed device 1 uses the timed signal sent by the power line 3 to control the sound box 5. The utility model does not need to arrange line again, and has the advantages of easy installation and low cost.
Description
Technical field
The utility model relates to a kind of time control music bell that is used for units such as school, enterprise, specifically, is a kind of music bell that transmits the time control signal with power line carrier.
Background technology
At present, the used music bell great majority of unit such as school, enterprise are traditional 220V electric bells, its shortcoming is to need to lay special electric bell signal wire separately between time controller and the electric bell to connect, and much schools and enterprise are all extending now, area increases, and a plurality of electric bells need be set, and needs a large amount of electric bell signal wires of laying, adopt this mode long construction period, manpower and materials waste greatly, influence environmental beauty again.
Summary of the invention
The power line carrier time control music bell that the purpose of this utility model is to provide a kind of and overcomes above-mentioned shortcoming, do not need rewiring, installation simply saves time, cost is low.
The utility model is achieved in that a kind of power line carrier time control music bell, comprise time controller and audio amplifier, the output of this time controller is connected with the input of power line carrier radiating circuit, the output of power line carrier radiating circuit is connected with line of electric force, line of electric force is connected with the input of power line carrier receiving circuit, the output of power line carrier receiving circuit is connected with audio amplifier, and time controller utilizes power line carrier transmission time control signal, the switching of control audio amplifier.
Principle of work of the present utility model is: time controller is exported to the power carrier radiating circuit with the time control signal, the power carrier radiating circuit transmits and accepts circuit by power line transmission to power line carrier and accept, power line carrier is accepted circuit and is transferred signals to mailbox again, and the control audio amplifier opens and closes on time.
Compared to existing technology, the utility model mainly improves and is to transmit the time control signal with power line carrier, so just can use the existing power line as the signal transmit network, not needing in addition construction wiring, cost can reduce significantly, the construction period can shorten significantly.Time controller, power line carrier radiating circuit and power line carrier receiving circuit and audio amplifier can be placed in the same transformer scope has supply socket Anywhere, and can the many places setting ring a bell a little, no matter be in office, classroom, dormitory or on the playground, the garden, so long as in same transformer scope, all good reception can be arranged.
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model power line carrier radiating circuit schematic diagram.
Fig. 3 is the utility model power line carrier receiving circuit schematic diagram.
Embodiment
As shown in Figure 1, the output of time controller 1 is connected with the input of power line carrier radiating circuit 2, the output of power line carrier radiating circuit 2 is connected with line of electric force 3, and line of electric force 3 is connected with the input of power line carrier receiving circuit 4, and power line carrier receiving circuit 4 is connected with audio amplifier 5.
Power line carrier radiating circuit 2 principles as shown in Figure 2.The oscillatory circuit of two different frequencies that it is made up of two 555 time base circuits.When the normally open contact CK of time controller relay two terminal shortcircuits, first (IC1) 555 constitutes low-frequency oscillatory network, and mainly by C1, R2 decision, 3 pin output frequencies are the low frequency signal of F1 to frequency F1.When 3 pin of IC1 are exported high level, the high-frequency oscillating circuits work that second (IC2) 555 constitutes, its oscillation frequency F2 is mainly by C3, R4 decision, and F2 is output as the pulse-modulated signal of F2 like this much larger than F1 at 3 pin of IC2.This modulation signal produces the high frequency modulated pulse by the driving circuit of being made up of V1, T, C5, C6 on line of electric force, the high frequency modulated pulse voltage is selected by transmission range.
Power line carrier receiving circuit 4 principles as shown in Figure 3.It is made up of a plurality of frequency identification circuits.When having high frequency modulated pulse regularly to occur on the power circuit, transformation by the T1 step-up transformer and the amplitude limit of current-limiting resistance R1 and D1 ~ D4 are sent signal into 3 pin of first frequency phase lock ring module (IC1) 567, frequency identification circuit (R2, C4) the decision identification frequency values of being made up of this frequency phase lock ring again.Output terminal 8 pin at IC1 just can demodulate the low frequency frequency that frequency is F1 then.This output frequency is delivered to the driving circuit of V2 composition with triggering music integrated chip playing back music, and delivers to audio amplifier 5 and send music tone ringer; Second frequency identification circuit (IC2) delivered on another road, adjusts the numerical value of R5, C7, makes second frequency demodulation circuit can demodulate the frequency of F1, and then (IC2) output 8 pin are high level, and L1 is luminous to be demonstrated just at jingle bell.
Claims (3)
1, a kind of power line carrier time control music bell, comprise time controller and audio amplifier, it is characterized in that: the output of this time controller (1) is connected with the input of power line carrier radiating circuit (2), the output of power line carrier radiating circuit (2) is connected with line of electric force (3), line of electric force (3) is connected with the input of power line carrier receiving circuit (4), and the output of power line carrier receiving circuit (4) is connected with audio amplifier (5).
2, power line carrier time control music bell according to claim 1, it is characterized in that: this time controller (1), power line carrier radiating circuit (2), power line carrier receiving circuit (3) and audio amplifier (4) are placed on the place that supply socket is arranged in the same transformer scope.
3, power line carrier time control music bell according to claim 1 and 2 is characterized in that: this power line carrier receiving circuit (4) and audio amplifier (5) are for a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520126589 CN2891134Y (en) | 2005-12-30 | 2005-12-30 | Power line carrier time-controlled music bell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520126589 CN2891134Y (en) | 2005-12-30 | 2005-12-30 | Power line carrier time-controlled music bell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2891134Y true CN2891134Y (en) | 2007-04-18 |
Family
ID=38021798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520126589 Expired - Fee Related CN2891134Y (en) | 2005-12-30 | 2005-12-30 | Power line carrier time-controlled music bell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2891134Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200167A (en) * | 2013-01-09 | 2013-07-10 | 北京卓越信通电子股份有限公司 | Program control method and corresponding device of player terminal |
| CN112815687A (en) * | 2021-02-04 | 2021-05-18 | 钟学能 | Air energy heat pump drying system with alarm function |
-
2005
- 2005-12-30 CN CN 200520126589 patent/CN2891134Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200167A (en) * | 2013-01-09 | 2013-07-10 | 北京卓越信通电子股份有限公司 | Program control method and corresponding device of player terminal |
| CN112815687A (en) * | 2021-02-04 | 2021-05-18 | 钟学能 | Air energy heat pump drying system with alarm function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |