Sound control device for communication system of wing-in-ground-effect ship

Abstract

The utility model provides a sound control device for a communication system of a wing-in-ground-effect ship, and belongs to the technical field of communication of wing-in-ground-effect ships. Comprising a box body and a control module arranged in the box body, the control module comprises a terminal strip, a first amplification module, a second amplification module, a third amplification module, a power amplification module, an isolation transformer, a rectifier pile and a delay switch module; the terminal strip is provided with a power supply positive port, a power supply negative port, a left sound channel input port, a right sound channel input port, a left sound channel output port and a right sound channel output port. According to the utility model, the left sound channel input port (LIN), the right sound channel input port (RIN), the left sound channel output port (LOUT), the right sound channel output port (ROUT), the LIN and the RIN are arranged to input stereo audio signals of a short-wave radio station, and the left sound channel audio signal and the right sound channel audio signal are amplified by the first amplification module and the second amplification module respectively; and the amplified audio signals are output to the earphone through the LOUT and the ROUT, so that the sound effect of the earphone can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the ground effect wing ship communication technical field, concretely relates to a ground effect wing ship communication system sound's control device. BACKGROUND

[0002] The ground effect wing ship (ground effect vehicle) is a kind of vehicle using ground effect flight.The short wave radio station and the very high frequency radio station are arranged in the ground effect wing ship, the current short wave radio station utilizes loudspeaker to play sound, but the hearing effect of human ear to loudspeaker is susceptible to environmental noise, and the environmental noise in the ground effect wing ship can interfere with the exchange of both sides of conversation.The earphone with anti-noise performance or noise reduction performance is the ideal choice for replacing loudspeaker to talk.

[0003] But due to the impedance of part earphone is larger, limited by the audio output power of short wave radio station, cause earphone sound is smaller.Therefore, it is needed to take measures to amplify the audio signal output by short wave radio station, so that earphone can achieve better sound effect. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem that the prior art is insufficient, provides a ground effect wing ship communication system sound's control device.

[0005] To solve the above technical problem, the technical scheme adopted by the utility model is:

[0006] A ground effect wing ship communication system sound's control device, including box body, still including the control module being arranged in the box body;The control module includes terminal row, first amplification module, second amplification module, third amplification module, power amplifier module, isolation transformer, rectifier stack and delay switch module;

[0007] The terminal row is provided with power supply positive electrode port, power supply negative electrode port, left sound channel input port, right sound channel input port, left sound channel output port and right sound channel output port;

[0008] The signal input end of the first amplification module is electrically connected with the left sound channel input port, and the signal output end is electrically connected with the left sound channel output port;The signal input end of the second amplification module is electrically connected with the right sound channel input port, and the signal output end is electrically connected with the right sound channel output port;

[0009] The signal input end of the first amplification module or the signal input end of the second amplification module is electrically connected with the signal input end of the third amplification module, and the signal output end of the third amplification module is electrically connected with the signal input end of the power amplifier module;The output side of the power amplifier module is connected with the isolation transformer and the rectifier stack in proper order;

[0010] The trigger port of the delay switch module is electrically connected with the direct current output of the rectifier stack, the common contact is electrically connected with the positive electrode end of the power supply of the first amplification module and the positive electrode end of the power supply of the second amplification module, and the normally open contact is electrically connected with the positive electrode port of the power supply.

[0011] The negative electrode port of the power supply is electrically connected with the negative electrode end of the power supply of the first amplification module and the negative electrode end of the power supply of the second amplification module; the positive electrode port of the power supply and the negative electrode port of the power supply also provide electric energy for the third amplification module, the power amplification module and the delay switch module.

[0012] Further, the control module further comprises a first relay and a second relay, and the terminal row is further provided with an emergency port.

[0013] The common contact of the first relay is electrically connected with the left channel input port, the normally closed contact is electrically connected with the signal input end of the first amplification module, and the normally open contact is electrically connected with the left channel output port.

[0014] The common contact of the second relay is electrically connected with the right channel input port, the normally closed contact is electrically connected with the signal input end of the second amplification module, and the normally open contact is electrically connected with the right channel output port.

[0015] The switching circuit of the first relay and the second relay is electrically connected with the emergency port and the negative electrode port of the power supply.

[0016] Further, the control module further comprises a third relay, and the terminal row is further provided with a talk signal input port, a first talk signal output port, a second talk signal output port and a switching port.

[0017] The common contact, the normally open contact and the normally closed contact of the third relay are electrically connected with the talk signal input port, the first talk signal output port and the second talk signal output port respectively, and the switching circuit of the third relay is electrically connected with the switching port and the negative electrode port of the power supply.

[0018] Further, a limited current resistance is connected in series between the positive electrode port of the power supply and the third amplification module and between the positive electrode port of the power supply and the power amplification module.

[0019] Further, the direct current output of the rectifier stack is connected in parallel with a second adjustable resistance and a filter capacitor.

[0020] Further, the power amplification module comprises a power amplification chip with a model of TDA2030.

[0021] Further, the first amplification module, the second amplification module and the third amplification module all comprise a power amplification chip of model LM386, and the third amplification module comprises a first adjustable resistor.

[0022] Further, the delay switch module is of model C2S02.

[0023] Further, the box body is made of rust-proof aluminum material and is subjected to anodic oxidation treatment on the surface.

[0024] Further, the box body is provided with heat dissipation holes on the surface.

[0025] Compared with the prior art, the utility model has the beneficial effects as follows:

[0026] The utility model discloses a left sound channel input port (LIN), right sound channel input port (RIN), left sound channel output port (LOUT) and right sound channel output port (ROUT) are provided, LIN and RIN can input the left sound channel audio signal and right sound channel audio signal of short wave radio station, utilize first amplification module and second amplification module respectively to the left and right sound channel audio signal of short wave radio station are amplified, and then the amplified audio signal is output to earphone through LOUT and ROUT, and the sound effect of earphone can be improved through the amplification of audio signal.

[0027] The utility model discloses a switching port, talk signal input port (PTTIN), first talk signal output port (PTTOUT1) and second talk signal output port (PTTOUT2) are further provided, and PTTIN port is used for connecting the microphone, and PTTOUT1 port and PTTOUT2 port are connected with one radio station (short wave radio station or very high frequency radio station) respectively, when switching port input high level or low level, PTTIN port can be communicated with PTTOUT1 port or PTTOUT2 port, and the microphone can be switched between short wave radio station and very high frequency radio station.

[0028] The box body of the utility model is made of rust-proof aluminum material and is subjected to anodic oxidation treatment on the surface, has very high corrosion resistance and is suitable for use under the harsh marine high salt fog condition, and the box body is further provided with heat dissipation holes, and the heat dissipation performance of internal electrical components can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] The utility model will be further explained in detail in connection with the drawings.

[0030] Figure 1 The utility model control module's schematic diagram is shown in the figure.

[0031] Figure 2 Circuit diagrams of the first amplification module, the second amplification module, and the third amplification module of this utility model;

[0032] Figure 3 : Circuit diagram of the power amplifier module of this utility model;

[0033] Wherein: 100-box body, 210-terminal block, 221-first amplification module, 222-second amplification module, 223-third amplification module, 231-first relay, 232-second relay, 233-third relay, 240-power amplification module, 250-delay switch module, 261-first adjustable resistor, 262-second adjustable resistor, 270-rectifier stack, 280-isolation transformer, 290-filter capacitor. Detailed Implementation

[0034] To better understand this utility model, the content of this utility model is further explained clearly below with reference to the embodiments and accompanying drawings. However, the protection scope of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0035] Example 1: See Figures 1-3 The purpose of this embodiment is to provide a sound control device for a ground effect vehicle communication system. The control box includes a housing 100 and a control module disposed within the housing 100.

[0036] The housing 100 is made of rust-resistant aluminum and has an anodized surface, providing excellent corrosion resistance and making it suitable for use in harsh marine environments with high salt spray. Preferably, the material grade of the housing 100 is LF6M. Additionally, the surface of the housing 100 is provided with ventilation holes to improve the heat dissipation performance of the internal control module.

[0037] like Figure 1The control module is shown in the schematic diagram, the control module includes terminal row 210, first amplification module 221 and second amplification module 222. Terminal row 210 is provided with power supply positive port (VCC), power supply negative port (GND), left channel input port (LIN), right channel input port (RIN), left channel output port (LOUT) and right channel output port (ROUT). VCC port and GND port are respectively used for electrically connecting the positive and negative poles of a DC power supply;LIN port and RIN port are used for connecting with the audio interface of a short wave radio station, and are respectively used for inputting left channel audio signal and right channel audio signal;LOUT port and ROUT port are used for connecting with audio equipment such as earphone, and are respectively used for outputting left channel audio signal and right channel audio signal. LIN port and LOUT port are connected in series with first amplification module 221, and RIN port and ROUT port are connected in series with second amplification module 222, first amplification module 221 is used for amplifying left channel audio signal, and second amplification module 222 is used for amplifying right channel audio signal.

[0038] Specifically, referring to Figure 2 , first amplification module 221 includes LM386 power amplification chip and connected resistance-capacitance elements. The 1, 2, 6 pins of first amplification module 221 are grounded, the 3 pin is a signal input end, the 5 pin is a signal output end, and the 4 pin is a power supply positive end. The LIN port of terminal row 210 is electrically connected with the 3 pin of first amplification module 221, and the LOUT port of terminal row 210 is electrically connected with the 5 pin of first amplification module 221. Second amplification module 222 is consistent with first amplification module 221, the RIN port of terminal row 210 is electrically connected with the 3 pin of second amplification module 222, and the ROUT port of terminal row 210 is electrically connected with the 5 pin of second amplification module 222.

[0039] By setting the first amplification module 221 and the second amplification module 222, the stereo signal output by the radio can be amplified. However, in some cases, if the first amplification module 221 and the second amplification module 222 fail, the normal output of the audio will be affected, therefore, the embodiment also takes measures to quickly cut out the first amplification module 221 and the second amplification module 222 from the circuit. Specifically, the terminal row 210 is also provided with an emergency port, and the LIN port of the terminal row 210 is also connected in series with the first relay 231 between the first amplification module 221, and the RIN port of the terminal row 210 is also connected in series with the second relay 232 between the second amplification module 222. The common contact of the first relay 231 is electrically connected with the LIN port of the terminal row 210, the normally closed contact is electrically connected with the 3 pin of the first amplification module 221, the normally open contact is electrically connected with the LOUT port of the terminal row 210, and the switching circuit (relay coil, including two switching contacts) is electrically connected with the emergency port and the negative port in the terminal row 210; the common contact of the second relay 232 is electrically connected with the RIN port of the terminal row 210, the normally closed contact is electrically connected with the 3 pin of the second amplification module 222, the normally open contact is electrically connected with the ROUT port of the terminal row 210, and the switching circuit (relay coil, including two switching contacts) is electrically connected with the emergency port and the GND port in the terminal row 210. When the emergency port of the terminal row 210 inputs a high-level emergency signal, the first relay 231 and the second relay 232 are both actuated, and the audio signals input by LIN and RIN are directly output to LOUT and ROUT, without processing the audio signals.

[0040] To realize the adaptive start or shutdown of the first amplification module 221 and the second amplification module 222, the control module further includes a third amplification module 223, a power amplification module 240, an isolation transformer 280, a rectifier stack 270 and a delay switch module 250. The third amplification module 223 is consistent with the first amplification module 221.

[0041] The delay switch module 250 is model C2S02, including six contacts, wherein the 2 pin is the common contact, the 1 pin is the normally open contact, the 3 pin is the normally closed contact, the 4 pin is the positive power supply end, the 5 pin is grounded, and the 0 pin is the trigger port. The 4 pin of the delay switch module 250 is electrically connected with the VCC port of the terminal row 210, and the 2 pin is electrically connected with the 4 pin of the first amplification module 221 and the second amplification module 222.

[0042] Referring to Figure 3The power amplification module 240 comprises a TDA2030 power amplification chip and connected resistance-capacitance elements, diode elements, etc. The 1, 2, 6 pins of the power amplification module 240 are grounded, the 3 pin is a signal input end, the 5 pin is a signal output end, and the 4 pin is a positive power supply end. The 4 pin of the power amplification module 240 is electrically connected with the VCC port of the terminal row 210 and the normally open contact of the delay switch module 250, and the 3 pin is electrically connected with the 5 pin of the third amplification module 223; the 4 pin of the third amplification module 223 is electrically connected with the VCC port of the terminal row 210, and the 3 pin is electrically connected with the 3 pin of the first amplification module 221 or the 3 pin of the second amplification module 222; the 5, 6 pins of the power amplification module 240 are electrically connected with the input side of the isolation transformer 280, the output side of the isolation transformer 280 is electrically connected with the rectifier stack 270, and the positive output end of the rectifier stack 270 is electrically connected with the 0 pin of the delay switch module 250.

[0043] When the audio signal is transmitted to the first amplification module 221 and the second amplification module 222, the audio signal of one of the channels is also transmitted to the third amplification module 223 at the same time, and is sequentially amplified by the third amplification module 223, the power amplification module 240, the isolation transformer 280, and the rectifier stack 270, and then is output to the trigger port of the delay switch module 250 after being converted into a direct current signal. The isolation transformer 280 and the rectifier stack 270 can filter out the noise in the audio signal, so when the audio signal is noise, the delay switch module 250 will not be triggered and will remain in the open state, and when the audio signal has normal sound signals, the delay switch module 250 will be triggered and closed, so that the first amplification module 221 and the second amplification module 222 are connected to the power supply and start working. The on time of the delay switch module 250 is set to be the minimum (about zero), and the off time is set to be 2-3 seconds, so that the first amplification module 221 and the second amplification module 222 can start working immediately when triggered, and can be closed after the audio signal is interrupted, which can ensure the continuity of the call.

[0044] Meanwhile, the direct current output of the rectifier stack 270 is also connected in parallel with the second adjustable resistor 262 and the filter capacitor 290, and the first adjustable resistor 261 which is easier to adjust and more precise is used to replace the original adjustable resistor (RP1) in the third amplification module 223. The output size of the rectifier stack 270 can be adjusted through the first adjustable resistor 261 and the second adjustable resistor 262, so as to adjust the size of the audio signal that triggers the delay switch module 250. Figure 2

[0045] In addition, a current-limiting resistor is connected in series between the VCC port of the terminal row 210 and the 4 pin of the third amplification module 223, and between the VCC port of the terminal row 210 and the 4 pin of the power amplification module 240. ​

[0046] Embodiment 2: refer to Figure 1 The sound control device of the ground effect wing craft communication system provided in the embodiment mainly has the following improvements compared with Embodiment 1:

[0047] The current ground effect wing craft is provided with a short wave radio station and a very high frequency radio station at the same time, in order to enable a single microphone (such as the microphone of a headset) to adapt to the two radio stations, the control module further comprises a third relay 233, and the terminal block 210 is further provided with a switching port, a talk signal input port (PTTIN), a first talk signal output port (PTTOUT1) and a second talk signal output port (PTTOUT2), the PTTIN port is used for connecting the microphone, the PTTOUT1 port and the PTTOUT2 port are connected with a radio station respectively. The common contact of the third relay 233 is electrically connected with the PTTIN port of the terminal block 210, the normally closed contact is electrically connected with the PTTOUT1 port of the terminal block 210, the normally open contact is electrically connected with the PTTOUT2 port of the terminal block 210, and the switching circuit (relay coil, including two switching contacts) is electrically connected with the switching port and the negative port in the terminal block 210. When the switching port of the terminal block 210 inputs a high level or a low level, the third relay 233 switches the PTTIN port and the PTTOUT1 port or the PTTOUT2 port of the terminal block 210 to be in communication, so that the microphone can be switched between the short wave radio station and the very high frequency radio station.

[0048] It should be noted that the components in the control module in the present application can be integrated on the same circuit board; or can be separately arranged and connected by wires, and the components can be conveniently replaced when needed.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, and other modifications or equivalent replacements to the technical solutions of the present application made by those skilled in the art should be covered in the scope of the claims of the present application, as long as they do not deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. A sound control device for a ground effect craft communication system comprising a housing, characterized in that: Also include a control module arranged in the box; the control module includes a terminal row, a first amplification module, a second amplification module, a third amplification module, a power amplifier module, an isolation transformer, a rectifier stack and a delay switch module; The terminal row is provided with a power positive port, a power negative port, a left channel input port, a right channel input port, a left channel output port and a right channel output port; The signal input end of the first amplification module is electrically connected with the left channel input port, and the signal output end is electrically connected with the left channel output port; the signal input end of the second amplification module is electrically connected with the right channel input port, and the signal output end is electrically connected with the right channel output port; The signal input end of the first amplification module or the signal input end of the second amplification module is electrically connected with the signal input end of the third amplification module, and the signal output end of the third amplification module is electrically connected with the signal input end of the power amplifier module; the output side of the power amplifier module is connected with the isolation transformer and the rectifier stack in sequence; The trigger port of the delay switch module is electrically connected with the direct current output of the rectifier stack, the common contact is electrically connected with the power positive end of the first amplification module and the power positive end of the second amplification module, and the normally open contact is electrically connected with the power positive port; The power negative port is electrically connected with the power negative end of the first amplification module and the power negative end of the second amplification module; the power positive port and the power negative port also provide electric energy for the third amplification module, the power amplifier module and the delay switch module.

2. The apparatus of claim 1, wherein: The control module further comprises a first relay and a second relay, and the terminal row is further provided with an emergency port; The common contact of the first relay is electrically connected with the left channel input port, the normally closed contact is electrically connected with the signal input end of the first amplification module, and the normally open contact is electrically connected with the left channel output port; The common contact of the second relay is electrically connected with the right channel input port, the normally closed contact is electrically connected with the signal input end of the second amplification module, and the normally open contact is electrically connected with the right channel output port; The switching circuit of the first relay and the second relay is electrically connected with the emergency port and the power negative port.

3. The apparatus of claim 1, wherein: The control module further comprises a third relay, and the terminal row is further provided with a talk signal input port, a first talk signal output port, a second talk signal output port and a switching port; The common contact, the normally open contact and the normally closed contact of the third relay are electrically connected with the talk signal input port, the first talk signal output port and the second talk signal output port respectively, and the switching circuit of the third relay is electrically connected with the switching port and the power negative port.

4. The apparatus of claim 1, wherein: Limited current resistors are connected in series between the power positive port and the third amplification module and between the power positive port and the power amplifier module.

5. The apparatus of claim 1, wherein: The direct current output of the rectifier stack is connected in parallel with a second adjustable resistor and a filter capacitor.

6. The apparatus of claim 1, wherein: The power amplifier module comprises a power amplifier chip with a model of TDA2030.

7. The device of claim 1, wherein: The first amplification module, the second amplification module and the third amplification module each comprise a power amplification chip of model LM386, and the third amplification module comprises a first adjustable resistor.

8. The device of claim 1, wherein: The delay switch module is of model C2S02.

9. The device of claim 1, wherein: The box body is made of rust-proof aluminum material and is subjected to anodic oxidation treatment on the surface.

10. The device of claim 1, wherein: The box body is provided with heat dissipation holes on the surface.

Images