CN201414204Y - Multifunctional vehicle radio station microphone - Google Patents
Multifunctional vehicle radio station microphone Download PDFInfo
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- CN201414204Y CN201414204Y CN2009201030564U CN200920103056U CN201414204Y CN 201414204 Y CN201414204 Y CN 201414204Y CN 2009201030564 U CN2009201030564 U CN 2009201030564U CN 200920103056 U CN200920103056 U CN 200920103056U CN 201414204 Y CN201414204 Y CN 201414204Y
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Abstract
The utility model relates to a multifunctional vehicle radio station microphone. The circuit structure of the microphone comprises an interface circuit, a press key circuit, a voltage stabilizing circuit, a voice frequency signal amplifying circuit and a microphone MIC which are connected, wherein two key switches, namely PTT1 and PTT2 are arranged in the press key circuit, the keyswitches are respectively the radio station PTT key and the alarm PTT key. The multifunctional vehicle radio station microphone has the functions of electric-sound conversion, sound control and suspension state acquisition, the functions of horn loudspeaking of the alarm, the radio station talk-back and suspension state acquisition and the like can be realized on the same hand microphone, thereby reducing the amount of microphones in police equipment in police cars, reducing the equipment cost and the mistaken use and facilitating the use and operation of polices.
Description
Technical field
The utility model relates to a kind of hand microphone, specifically a kind of multifunctional vehicle mounted radio station microphone.
Background technology
For satisfying need of work, on police car, add at present a lot of alert equipment of using, not only the interior space occupancy is big, and since every kind of police with equipment all at the operating-controlling mechanism that uses separately, as at the hand microphone (being commonly called as " hand miaow ") that all is equipped with on the vehicle radio station and on siren separately, this repetition is provided with, and makes that the interior laying of car is relatively more chaotic, uses also inconvenient.
The utility model content
The purpose of this utility model just provides a kind of multifunctional vehicle mounted radio station microphone, to realize vehicle radio station and the shared microphone of siren, reduces the quantity of microphone, saves interior space, reduces equipment cost, and is user-friendly.
The utility model is achieved in that a kind of multifunctional vehicle mounted radio station microphone, its microphone circuit is to be connected to form by interface circuit, key circuit, voltage stabilizing circuit, amplifier circuit for sound frequency signal and microphone MIC, be provided with two key switch PTT1 and PTT2 in described key circuit, described key switch is respectively radio station PTT key and siren PTT key.
When the policeman need use siren to propaganda directed to communicate, hand-held this microphone was pressed the siren PTT key on the microphone, and this microphone can be through a middle control main frame that joins with it by interface circuit, sent the audio frequency signal of propagandaing directed to communicate to siren; Middle control main frame sends instruction simultaneously, and the control siren switches to the state of propagandaing directed to communicate from alarm state, broadcasts by siren after through amplifier circuit for sound frequency signal the audio signal of propagandaing directed to communicate being amplified.After unclamping the siren PTT key on this microphone, middle control main frame sends instruction to siren in view of the above, and the control siren cuts out the state of propagandaing directed to communicate, and finishes to propaganda directed to communicate.
When the policeman need use radio station intercommunication conversation, press the radio station PTT key on this microphone, make this microphone through in the control main frame send the voice-frequency telephony signal to the radio station, and send instruction, make the radio station begin emission; After unclamping the radio station PTT key on this microphone, middle control main frame sends out code to the radio station in view of the above, finishes conversation.
Interface circuit described in the utility model is the interface JP1 of octal, include and connect two leg MIC+, the MIC-that microphone MIC uses, the leg that connects two PTT key control switch P TT1 and PTT2, the leg HK of coupling hook, and power supply wiring pin SB and ground connection stitch GND.Power supply wiring pin SB connects+the 12V power supply, hook leg HK serial connection capacitor C 1 back ground connection, series capacitance C12 on the leg MIC+ of interface JP1.
Described voltage stabilizing circuit is to be connected to form with electric capacity of voltage regulation C2, the C7 of input and electric capacity of voltage regulation C3, C8, the C11 of output by three-terminal voltage-stabilizing chip IC 1; The described amplifier circuit for sound frequency signal of output termination of three-terminal voltage-stabilizing chip IC 1.
Described amplifier circuit for sound frequency signal is connected to form by amplifier IC2 and peripheral cell resistance R 1-R3, capacitor C 5, C10 and negative feedback resistor R4; Amplifier IC2 electrode input end connects described voltage stabilizing circuit through resistance R 2; Connect the signal output part of described microphone MIC after the negative input series resistance R1 of amplifier IC2 and the capacitor C 5; Meet the leg MIC+ of the interface JP1 in the described interface circuit behind the output series capacitance C12 of amplifier IC2.
The signal input part of described microphone MIC divides the leg MIC-of the interface JP1 in earth connection and the described interface circuit.
The utlity model has the electroacoustic conversion, control and send out and the suspension status acquisition function, can realize on same hand microphone that siren is propagandaed directed to communicate, the radio station is to functions such as the suspension status collections of making peace, can reduce the alert quantity that is provided with in the police car thus with microphone in the equipment, reduce equipment cost, reduce to take and use mistake, make things convenient for police's use operation.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
The circuit structure of vehicle radio station microphone of the present invention includes several parts such as interface circuit, key circuit, voltage stabilizing circuit, amplifier circuit for sound frequency signal and microphone MIC, and as shown in Figure 1, its a kind of concrete circuit structure is:
The octal interface JP1 that it is CON8 that described interface circuit is selected a model for use, these eight wiring pins include and connect two leg MIC+, the MIC-that microphone MIC uses, the leg that connects two PTT key control switch P TT1 and PTT2, the leg HK of coupling hook, and power supply wiring pin SB and ground connection stitch GND; Power supply wiring pin SB connects+the 12V power supply, hook leg HK serial connection capacitor C 1 back ground connection, series capacitance C12 on the leg MIC+ of interface JP1.
Described key circuit is provided with two key switch PTT1 and PTT2, and these two key switches are respectively radio station PTT key and siren PTT key.
It is TA7805F three-terminal voltage-stabilizing chip IC 1 that described voltage stabilizing circuit is selected model for use, at the input of three-terminal voltage-stabilizing chip IC 1 and be connected to electric capacity of voltage regulation C2, C7, at the input of IC1 and be connected to electric capacity of voltage regulation C3, C8, C11.The output of three-terminal voltage-stabilizing chip IC 1 is connected to amplifier circuit for sound frequency signal.
Amplifier circuit for sound frequency signal is connected to form by amplifier IC2 and peripheral cell resistance R 1-R3, capacitor C 5, C10 and negative feedback resistor R4.The electrode input end of amplifier IC2 connects above-mentioned voltage stabilizing circuit through resistance R 2; Be connected to the signal output part of microphone MIC after the negative input series resistance R1 of amplifier IC2 and the capacitor C 5; Signal input part one road earth connection of microphone MIC, another road meets the leg MIC-of the interface JP1 in the described interface circuit; Be connected to the leg MIC+ end of the interface JP1 in the above-mentioned interface circuit behind the output series capacitance C12 of amplifier IC2.
Claims (5)
1, a kind of multifunctional vehicle mounted radio station microphone, it is characterized in that microphone circuit is to be connected to form by interface circuit, key circuit, voltage stabilizing circuit, amplifier circuit for sound frequency signal and microphone MIC, be provided with two key switch PTT1 and PTT2 at described key circuit, described key switch is respectively radio station PTT key and siren PTT key.
2, multifunctional vehicle mounted radio station according to claim 1 microphone, it is characterized in that described interface circuit is the interface JP1 of octal, include and connect two leg MIC+, the MIC-that microphone MIC uses, the leg that connects two PTT key control switch P TT1 and PTT2, the leg HK of coupling hook, and power supply wiring pin SB and ground connection stitch GND; Power supply wiring pin SB connects+the 12V power supply, hook leg HK serial connection capacitor C 1 back ground connection, series capacitance C12 on the leg MIC+ of interface JP1.
3, multifunctional vehicle mounted radio station according to claim 1 microphone is characterized in that described voltage stabilizing circuit is to be connected to form with electric capacity of voltage regulation C2, the C7 of input and electric capacity of voltage regulation C3, C8, the C11 of output by three-terminal voltage-stabilizing chip IC 1; The described amplifier circuit for sound frequency signal of output termination of three-terminal voltage-stabilizing chip IC 1.
4, multifunctional vehicle mounted radio station according to claim 1 microphone is characterized in that described amplifier circuit for sound frequency signal is connected to form by amplifier IC2 and peripheral cell resistance R 1-R3, capacitor C 5, C10 and negative feedback resistor R4; Amplifier IC2 electrode input end connects described voltage stabilizing circuit through resistance R 2; Connect the signal output part of described microphone MIC after the negative input series resistance R1 of amplifier IC2 and the capacitor C 5; Meet the leg MIC+ of the interface JP1 in the described interface circuit behind the output series capacitance C12 of amplifier IC2.
5, multifunctional vehicle mounted radio station according to claim 2 microphone, the signal input part that it is characterized in that described microphone MIC divides the leg MIC-of the interface JP1 in earth connection and the described interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201030564U CN201414204Y (en) | 2009-05-27 | 2009-05-27 | Multifunctional vehicle radio station microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201030564U CN201414204Y (en) | 2009-05-27 | 2009-05-27 | Multifunctional vehicle radio station microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201414204Y true CN201414204Y (en) | 2010-02-24 |
Family
ID=41716082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201030564U Expired - Fee Related CN201414204Y (en) | 2009-05-27 | 2009-05-27 | Multifunctional vehicle radio station microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201414204Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647198A (en) * | 2012-03-23 | 2012-08-22 | 福建巨力电子装备工业有限公司 | Multifunctional handheld microphone of vehicular central control system for polices |
| CN104038248A (en) * | 2014-06-20 | 2014-09-10 | 泉州市琪祥电子科技有限公司 | Improved vehicle-mounted interphone |
| CN103442310B (en) * | 2013-09-05 | 2016-06-29 | 广州维德科技有限公司 | A kind of digital handheld radio station with double; two PTT button design and communication means thereof |
-
2009
- 2009-05-27 CN CN2009201030564U patent/CN201414204Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647198A (en) * | 2012-03-23 | 2012-08-22 | 福建巨力电子装备工业有限公司 | Multifunctional handheld microphone of vehicular central control system for polices |
| CN103442310B (en) * | 2013-09-05 | 2016-06-29 | 广州维德科技有限公司 | A kind of digital handheld radio station with double; two PTT button design and communication means thereof |
| CN104038248A (en) * | 2014-06-20 | 2014-09-10 | 泉州市琪祥电子科技有限公司 | Improved vehicle-mounted interphone |
| CN105187081A (en) * | 2014-06-20 | 2015-12-23 | 泉州市琪祥电子科技有限公司 | Vehicle interphone |
| CN105227206A (en) * | 2014-06-20 | 2016-01-06 | 泉州市琪祥电子科技有限公司 | A kind of novel on-vehicle intercom |
| CN104038248B (en) * | 2014-06-20 | 2016-01-20 | 泉州市琪祥电子科技有限公司 | A kind of improved vehicle-carried intercom |
| CN105187081B (en) * | 2014-06-20 | 2018-03-27 | 泉州市琪祥电子科技有限公司 | A kind of Vehicular intercom |
| CN105227206B (en) * | 2014-06-20 | 2018-03-27 | 泉州市琪祥电子科技有限公司 | A kind of novel on-vehicle intercom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100224 Termination date: 20150527 |
|
| EXPY | Termination of patent right or utility model |