CN216252738U - Automatic playing circuit of interphone - Google Patents
Automatic playing circuit of interphone Download PDFInfo
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- CN216252738U CN216252738U CN202123030126.8U CN202123030126U CN216252738U CN 216252738 U CN216252738 U CN 216252738U CN 202123030126 U CN202123030126 U CN 202123030126U CN 216252738 U CN216252738 U CN 216252738U
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Abstract
The application provides an intercom automatic play circuit, includes: a control pin, a control circuit and a relay; the control pin is connected with the control circuit; the control circuit is connected with the relay, and the relay is used for realizing automatic playing. According to the embodiment of the application, the butt joint is simple, the automatic playing function is convenient to operate, and the service efficiency of the interphone can be greatly improved through the control pins, the control circuit and the relay.
Description
Technical Field
The application relates to the technical field of interphones, particularly, relate to an automatic broadcast circuit of intercom.
Background
The interphone is used as local information sharing equipment, is popularized in hotel and office building scenes, and is widely applied. For example, when a user enters a hotel, the user needs to call the front desk when meeting the needs of ordering food, cleaning the health of hotel service personnel and the like, and the front desk receives the needs of the resident and then informs the back desk and the health service personnel of the hotel to intervene.
In the process, the interphone is often used, but if the requirement is concentrated or multiple guests come for consultation, the interphone cannot meet the requirement, so that the communication efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide an automatic play circuit of intercom, improve communication efficiency, reduce material cost, improve efficiency of popularization.
In a first aspect, the present application provides an intercom automatic playback circuit, include: a control pin, a control circuit and a relay;
the control pin is connected with the control circuit;
the control circuit is connected with the relay, and the relay is used for realizing automatic playing.
In the above-mentioned realization process, through control pin, control circuit and relay, realize the automatic play function of intercom, the butt joint is simple, and the simple operation can greatly improve the availability factor of intercom, satisfies various demands.
Further, the control circuit includes: the circuit comprises a first resistor, a second resistor, a triode, a first diode, a second diode and a third resistor.
In the implementation process, the control circuit is used for controlling the receiving signal and the sending signal of the interphone, so that the interphone can sound normally.
Further, the control pin is connected to the first resistor.
In the implementation process, the control pin can receive signals and transmit the signals to the control circuit.
Further, the first resistor is connected with the base electrode of the triode; the emitting electrode of the triode is grounded; and the collector of the triode is connected with the cathode of the first diode.
In the implementation process, the triode can amplify signals in the control circuit and can be used as a switch of the control circuit.
Furthermore, one end of the second resistor is connected between the first resistor and the base of the triode, and the other end of the second resistor is grounded.
In the implementation process, the first resistor and the second resistor have the function of shunting current in the control circuit.
Further, the anode of the first diode is connected with a power supply through the third resistor; and the cathode of the first diode is connected with the anode of the second diode.
In the implementation process, the third resistor is connected with the power supply to play a role in preventing the first diode from being burnt out due to overlarge current.
Further, the cathode of the second diode is connected with the anode of the relay.
In the implementation process, the diode can play a role in driving the relay, and then the current is controlled by the relay to form secondary driving.
Further, the positive pole of the relay is connected with a power supply.
In the implementation process, the relay is connected with the power supply and can play a role in controlling current.
Further, the cathode of the relay is connected between the first diode and the second diode.
In the implementation process, the relay can expand the control range of the control circuit and realize the function of automatic playing.
Further, the type of the relay is HFD 4/5-S.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an automatic playback circuit according to an embodiment of the present disclosure;
fig. 2 is a schematic circuit diagram of an auto-play circuit according to an embodiment of the present disclosure;
fig. 3 is a schematic interface diagram of an earphone cable according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or a point connection; either directly or indirectly through intervening media, or may be an internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.
The interphone is used as local information sharing equipment, is popularized in hotel and office building scenes, and is widely applied. For example, when a user enters a hotel, the user needs to call the front desk when meeting the needs of ordering food, cleaning the health of hotel service personnel and the like, and the front desk receives the needs of the resident and then informs the back desk and the health service personnel of the hotel to intervene.
In the process, the interphone is often used, but if the requirement is concentrated or multiple guests come for consultation, the interphone cannot meet the requirement, so that the communication efficiency is low.
To the problems in the prior art, the application provides an automatic playing circuit of an interphone.
Example one
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
An embodiment of the present invention provides an automatic playback circuit, as shown in fig. 1 and fig. 2, the circuit includes the following: a control pin, a control circuit and a relay; the control pin is connected with the control circuit; the control circuit is connected with the relay, and the relay is used for realizing automatic playing.
Further, the control circuit includes: the circuit comprises a first resistor R1, a second resistor R2, a triode Q, a first diode D1, a second diode D2 and a third resistor R3.
The control pin is a General-purpose input/output (GPIO) pin, the default GPIO pin is at a low level, the interphone is in a receiving state, and when voice needs to be played, the GPIO pin is set to be at a high level.
Taking this embodiment as an example, the control circuit is used to control the receiving signal and the sending signal of the interphone, so as to ensure that the interphone can sound normally.
Further, the control pin is connected to a first resistor R1.
Taking this embodiment as an example, the control pin may receive a signal and transmit the signal to the control circuit.
Further, the first resistor R1 is connected with the base of the triode Q; the emitting electrode of the triode Q is grounded; the collector of the transistor Q is connected to the negative electrode of the first diode D1.
Taking this embodiment as an example, the transistor Q may amplify a signal in the control circuit and simultaneously serve as a switch of the control circuit.
Furthermore, one end of the second resistor R2 is connected between the first resistor R1 and the base of the transistor Q, and the other end of the second resistor R2 is grounded.
Taking this embodiment as an example, the first resistor R1 and the second resistor R2 function to shunt current in the control circuit.
Further, the anode of the first diode D1 is connected to the power supply through a third resistor; the cathode of the first diode D1 is connected to the anode of the second diode D2.
Taking this embodiment as an example, the third resistor connected to the power supply serves to prevent the first diode from being burned out due to excessive current.
Further, the cathode of the second diode D2 is connected to the anode of the relay.
Taking this embodiment as an example, the transistor Q may drive a relay, which then controls the current to form a secondary drive.
Further, the positive pole of the relay is connected with a power supply.
Taking this embodiment as an example, the relay is connected to a power supply, and can play a role in controlling current.
Further, the cathode of the relay is connected between the first diode D1 and the second diode D2.
Taking this embodiment as an example, the relay can expand the control range of the control circuit and realize the function of automatic playing.
Further, the relay is HFD 4/5-S.
In the implementation process, the RK-GND pin and the A-GND pin on the relay are used for being connected with an earphone wire and playing a role in controlling sending and receiving of the interphone.
Optionally, the RK-GND pin of the relay is connected to the intercom through an earphone line, the earphone line is provided with a PPT button, one end of the earphone line is connected to the intercom, the other end of the earphone line is connected to the RK-GND pin of the relay, when speech needs to be played, the relay inputs a level signal to the earphone line through the RK-GND pin, the process is equal to pressing the PPT button on the earphone line, the intercom is in a sending state at the moment, and meanwhile, the signal is transmitted to the intercom through the earphone line and plays the speech through the intercom.
When voice does not need to be played, the GPIO pin is reset to be at a low level, the relay does not work any more, and the interphone is in a receiving state again. The interphone is placed in a sending state by starting the relay and then short-circuiting the RK-GND pin and the A-GND pin, voice is played through the interphone, and after the playing is finished, the GPIO pin is closed and then the relay is closed.
As shown in fig. 3, the interface type of the earphone cable is shown, J10 is an audio output interface, J1 and J2 are input interfaces of the intercom, where RK-RIGHT is a RIGHT channel of the earphone cable, RK-LEFT is a LEFT channel of the earphone cable, RK-GND is an interface where the earphone cable is connected to an RK-GND pin, and a-GND is an interface where the earphone cable is connected to an a-GND pin.
The application provides an automatic play circuit that can realize intercom automatic play, through control pin, control circuit and relay, realizes that the butt joint is simple, and the automatic play function of simple operation can greatly improve service efficiency, satisfies the customer's demand.
In all the above embodiments, the terms "large" and "small" are relative terms, and the terms "more" and "less" are relative terms, and the terms "upper" and "lower" are relative terms, so that the description of these relative terms is not repeated herein.
It should be appreciated that reference throughout this specification to "in this embodiment," "in an embodiment of the present application," or "as an alternative implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in this embodiment," "in the examples of the present application," or "as an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are all alternative embodiments and that the acts and modules involved are not necessarily required for this application.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. The utility model provides an intercom automatic play circuit which characterized in that, the circuit includes: a control pin, a control circuit and a relay;
the control pin is connected with the control circuit;
the control circuit is connected with the relay, and the relay is used for realizing automatic playing.
2. The intercom auto-play circuit of claim 1, wherein said control circuit comprises: the circuit comprises a first resistor, a second resistor, a triode, a first diode, a second diode and a third resistor.
3. The intercom auto-play circuit according to claim 2, wherein said control pin is connected to said first resistor.
4. The intercom automatic playing circuit according to claim 2, wherein said first resistor is connected to the base of said triode; the emitting electrode of the triode is grounded; and the collector of the triode is connected with the cathode of the first diode.
5. The intercom automatic playing circuit according to claim 4, wherein one end of said second resistor is connected between said first resistor and the base of said triode, and the other end of said second resistor is grounded.
6. The intercom automatic playing circuit according to claim 2, wherein the anode of said first diode is connected to the power supply through said third resistor; and the cathode of the first diode is connected with the anode of the second diode.
7. The intercom automatic play circuit of claim 2, wherein a cathode of said second diode is connected to an anode of said relay.
8. The intercom automatic playing circuit according to claim 7, wherein the positive pole of said relay is connected to a power source.
9. The intercom auto-play circuit of claim 8, wherein a cathode of said relay is connected between said first diode and said second diode.
10. The intercom automatic play circuit of claim 9, wherein said relay is HFD4/5-S type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123030126.8U CN216252738U (en) | 2021-12-03 | 2021-12-03 | Automatic playing circuit of interphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123030126.8U CN216252738U (en) | 2021-12-03 | 2021-12-03 | Automatic playing circuit of interphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216252738U true CN216252738U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123030126.8U Active CN216252738U (en) | 2021-12-03 | 2021-12-03 | Automatic playing circuit of interphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216252738U (en) |
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2021
- 2021-12-03 CN CN202123030126.8U patent/CN216252738U/en active Active
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