CN214043071U - Voice wireless module - Google Patents
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- CN214043071U CN214043071U CN202021515575.4U CN202021515575U CN214043071U CN 214043071 U CN214043071 U CN 214043071U CN 202021515575 U CN202021515575 U CN 202021515575U CN 214043071 U CN214043071 U CN 214043071U
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Abstract
The voice wireless module of the utility model has the advantages that the voice wireless module has the function of level conversion by arranging the voltage reduction module, the main control module, the level conversion module, the audio module and the antenna module, and the communication port of the main control chip is well prevented from being damaged due to the fact that level signals are not converted when the main control chip is communicated with external equipment, and the reliability is high; in addition, due to the arrangement of the storage unit, a user can preset corresponding voice sentences, and even if the voice wireless module is not in an online mode, the user can still speak the corresponding voice sentences to control the voice wireless module to complete corresponding operation; moreover, the dual-frequency antenna integrates the functions of receiving and transmitting 2.4g and 5g frequency band signals, the circuit of the voice wireless module can be greatly simplified, and meanwhile, the manufacturing cost is also reduced.
Description
Technical Field
The utility model relates to a wireless module technical field especially relates to a pronunciation wireless module.
Background
At present, a wireless module is a modular product of a digital data transmission radio station, and refers to a high-performance professional data transmission radio station module realized by means of a DSP technology and a radio technology. Wireless modules extend into many systems, from the earliest use of push-to-talk codes, telegraph, analog radio modules plus wireless MODEMs, to digital radio modules and DSPs, software radios, transmission signals also from code, low speed data to high speed data. The wireless module is widely applied to the fields of unmanned aerial vehicle communication control, industrial automation, oil field data acquisition, railway wireless communication, coal mine safety monitoring systems, pipe network monitoring, hydrology monitoring systems and the like.
In order to let wireless module more intelligent, current wireless module generally all can be integrated with speech recognition's function, the integration has speech recognition's wireless module to be called simply the pronunciation wireless module, the user can accomplish the control to the pronunciation wireless module through voice command, has improved the simple operation nature of pronunciation wireless module greatly, also makes simultaneously low age and high age user can do not have difference control pronunciation wireless module. However, the existing voice wireless module has the following defects:
firstly, a communication port of the voice wireless module receives a 3.3V level signal, a communication port of the external device sends a 5V level signal, and the existing voice wireless module is not internally provided with a corresponding level conversion module, so that when the communication port of the external device inputs the 5V level signal to the communication port of the voice wireless module, the communication port of the voice wireless module is often damaged due to the fact that the 5V level signal cannot be tolerated;
secondly, the existing voice wireless module can only perform voice recognition under the condition that the existing voice wireless module is connected with a network, and the voice recognition function of the existing voice wireless module cannot be realized under the condition that the existing voice wireless module is not connected with the network, namely, the existing voice wireless module can perform voice recognition under an online mode and cannot perform voice recognition under an offline mode, and the voice recognition function has certain limitation;
third, current pronunciation wireless module, in order to receive and dispatch the signal of 2.4g and 5g frequency channels, can embed the antenna that has special receiving and dispatching 2.4g frequency channel signal and the antenna that has special receiving and dispatching 5g frequency channel signal, the manufacturing cost who leads to pronunciation wireless module can suitably increase, and the circuit that also can cause pronunciation wireless module simultaneously moves towards comparatively complicacy, can increase the maintenance degree of difficulty in later stage to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, providing one kind possesses level transition function, and the reliability is high, all accomplishes the pronunciation recognition function under online mode and the off-line mode, and the manufacturing cost is lower and the pronunciation wireless module that the circuit is comparatively simplified.
The purpose of the utility model is realized through the following technical scheme:
a voice wireless module, comprising:
the input end of the voltage reduction module is used for being connected with an external power supply;
the main control module comprises a main control chip and a storage unit, wherein a power supply end of the main control chip is connected with an output end of the voltage reduction module, and the storage unit is respectively connected with the main control chip and the output end of the voltage reduction module;
the level conversion module comprises a level conversion unit and a connecting terminal, and the level conversion unit is respectively connected with the connecting terminal, the output end of the voltage reduction module, the main control chip and an external power supply;
the audio module comprises an audio chip, a power amplification unit, a microphone and a loudspeaker, wherein the audio chip is respectively connected with the main control chip, the power amplification unit and the microphone, the power amplification unit is respectively connected with the main control chip and an external power supply, and the loudspeaker is connected with the power amplification unit; and
the antenna module comprises a duplex unit and a dual-frequency antenna, and the duplex unit is respectively connected with the main control chip and the dual-frequency antenna.
In one embodiment, the buck module includes a buck chip Q1, a capacitor C05, a resistor R02, a resistor R25, a capacitor C24, a capacitor C6 and an inductor L1, the 4 th pin of the buck chip Q1 is used as an input terminal of the buck module, one end of the capacitor C05 is connected to the 4 th pin of the buck chip Q1, the other end of the capacitor C05 is grounded, the 3 rd pin of the buck chip Q1 is connected to one end of the inductor L1, the other end of the inductor L1 is used as an output terminal of the buck module, one end of the capacitor C24 is connected to the other end of the inductor L1, the other end of the capacitor C24 is grounded, the 1 st pin of the buck chip Q1 is connected to the 4 th pin of the buck chip Q1, the 2 nd pin of the buck chip Q1 is grounded, the 5 th pin of the buck chip Q1 is connected in series with the 5 th pin of the capacitor C6 and the other end of the inductor L1, one end of the resistor R02 is connected with the 5 th pin of the voltage reduction chip Q1, the other end of the resistor R02 is grounded, and the resistor R25 is connected with the capacitor C6 in parallel.
In one embodiment, the memory unit includes a memory FLASH1, a resistor R12 and a capacitor C97, the 1 st, 2 nd, 5 th and 6 th pins of the memory FLASH1 are all connected to the main control chip, the 3 rd pin of the memory FLASH1 is connected in series to the resistor R12 and connected to the output end of the voltage-reducing module, the 8 th pin of the memory FLASH1 is connected in series to the capacitor C97 and grounded, the 7 th pin of the memory FLASH1 is connected to the 8 th pin of the memory FLASH1, and the 4 th pin of the memory FLASH1 is grounded.
In one embodiment, the level shifter unit includes a level shifter chip Q8, a resistor R34, a resistor R33, a capacitor C4, a resistor R18, a resistor R32, a resistor R40 and a resistor R76, the 1 st pin of the level shifter chip Q8 is connected to the main control chip, the level shifter chip Q8 is connected to the output terminal of the voltage-dropping module in series with the resistor R34, the 3 rd pin of the level shifter chip Q8 is connected to the main control chip, one end of the resistor R33 is connected to the 3 rd pin of the level shifter chip Q8, the other end of the resistor R33 is connected to the output terminal of the voltage-dropping module, one end of the capacitor C4 is connected to the 3 rd pin of the level shifter chip Q8, the other end of the capacitor C4 is connected to ground, the 4 th pin of the level shifter chip Q8 is connected to the resistor R5 in series with the connection terminal, the 5 th pin of the level shifter chip Q8 is connected to the output terminal of the voltage-dropping module in series with the resistor R40, the pin 6 of the level shift chip Q8 is connected in series with the resistor R32 and the connection terminal, one end of the resistor R18 is connected with the pin 6 of the level shift chip Q8, and the other end of the resistor R18 is connected with an external power supply.
In one embodiment, the level shifter unit further includes a capacitor C74, one end of the capacitor C74 is connected to pin 2 of the level shifter chip Q8, and the other end of the capacitor C74 is grounded.
In one embodiment, the level shifter unit further includes a capacitor C75, one end of the capacitor C75 is connected to the 5 th pin of the level shifter chip Q8, and the other end of the capacitor C75 is grounded.
In one embodiment, the power amplifier unit includes a power amplifier chip Q7, a resistor R37, a capacitor C100, a capacitor C63, a resistor R39, a capacitor C71, a resistor R75, a capacitor C70, a resistor R74, a capacitor C77 and a capacitor C140, the 1 st pin of the power amplifier chip Q7 is connected in series with the resistor R37 and is connected with the main control chip, one end of the capacitor C100 is connected with the 1 st pin of the power amplifier chip Q7, the other end of the capacitor C100 is grounded, the 2 nd pin of the power amplifier chip Q7 is connected in series with the capacitor C63 and is grounded, the 3 rd pin of the power amplifier chip Q7 is connected in series with the resistor R39 and the capacitor C71 and is connected with the audio chip, the 4 th pin of the power amplifier chip Q7 is connected in series with the resistor R75 and the capacitor C70 and is connected with the audio chip, the 5 th pin of the power amplifier chip Q7 is connected with the anode of the loudspeaker, the power amplifier chip Q7 and the cathode of the loudspeaker, the 6 th pin of power amplifier chip Q7 respectively with resistance R74's one end with electric capacity C77's one end is connected, resistance R74's the other end is connected with external power source, electric capacity C77's other end ground connection, power amplifier chip Q7's 7 th pin ground connection, electric capacity C140's one end with resistance R74's the other end is connected, electric capacity C140's the other end ground connection.
In one embodiment, the duplexing unit includes a duplexer U4, an inductor L10, a capacitor C73, a capacitor C65, an inductor L11, a capacitor C64, a capacitor C72, a capacitor C36, a capacitor C61, a resistor R31, and an inductor L5, the 1 st, 3 rd, and 5 th pins of the duplexer U4 are all grounded, the 6 th pin of the duplexer U4 is connected to one end of the inductor L10, the other end of the inductor L10 is connected to the main control chip, one end of the capacitor C73 is connected to one end of the inductor L10, the other end of the capacitor C73 is grounded, one end of the capacitor C65 is connected to the other end of the inductor L10, the other end of the capacitor C65 is grounded, the 4 th pin of the duplexer U4 is connected to one end of the inductor L11, the other end of the inductor L11 is connected to the main control chip, one end of the capacitor C64 is connected to one end of the inductor L11, and the other end of the capacitor C64 is connected to ground, the one end of electric capacity C72 with inductance L11's the other end is connected, electric capacity C72's the other end ground connection, duplexer U4's 2 nd foot respectively with electric capacity C36's one end, electric capacity C81's one end with resistance R31's one end is connected, electric capacity C36's the other end ground connection, electric capacity C61's the other end ground connection, resistance R31's the other end with inductance L5's one end is connected, inductance L5's the other end with dual-band antenna connects.
In one embodiment, the duplexing unit further includes a capacitor C51, and one end of the capacitor C51 is connected to the other end of the resistor R31.
In one embodiment, the duplexing unit further includes a capacitor C52, one end of the capacitor C52 is connected to the other end of the inductor L5, and the other end of the capacitor C52 is grounded.
The utility model discloses compare in prior art's advantage and beneficial effect as follows:
the voice wireless module of the utility model has the advantages that the voice wireless module has the function of level conversion by arranging the voltage reduction module, the main control module, the level conversion module, the audio module and the antenna module, and the communication port of the main control chip is well prevented from being damaged due to the fact that level signals are not converted when the main control chip is communicated with external equipment, and the reliability is high; in addition, due to the arrangement of the storage unit, a user can preset corresponding voice sentences, and even if the voice wireless module is not in an online mode, the user can still speak the corresponding voice sentences to control the voice wireless module to complete corresponding operation; moreover, the dual-frequency antenna integrates the functions of receiving and transmitting 2.4g and 5g frequency band signals, the circuit of the voice wireless module can be greatly simplified, and meanwhile, the manufacturing cost is also reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic block diagram of a voice wireless module according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a voltage reduction module according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a memory cell according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a level shift unit according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a power amplifier unit according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of an antenna module according to an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a voice wireless module 10 includes a voltage step-down module 100, a main control module 200, a level conversion module 300, an audio module 400, and an antenna module 500.
Thus, it should be noted that the voltage reduction module 100 plays a role of reducing voltage and providing a working voltage; the main control module 200 plays a role of control, and is used for processing signals and communicating with external equipment; the level conversion module 300 plays a role of level, preventing the main control module 200 from being damaged when communicating with an external device; the audio module 400 plays a role of voice recognition, and a user can complete control over the voice wireless module 10 by speaking corresponding voice sentences; the antenna module 500 functions to transceive wireless signals.
Referring to fig. 1, an input terminal of the voltage-reducing module 100 is used for connecting with an external power source.
Thus, it should be noted that the input terminal of the voltage-reducing module 100 is connected to an external power source, and the external power source may be 5V.
Referring to fig. 1, the main control module 200 includes a main control chip 210 and a memory unit 220, a power supply terminal of the main control chip 210 is connected to an output terminal of the voltage step-down module 100, and the memory unit 220 is respectively connected to the main control chip 210 and the output terminal of the voltage step-down module 100.
In this way, it should be noted that, by the arrangement of the storage unit 220, the user can preset the corresponding voice sentence, even if the voice wireless module 10 is not in the online mode, the online mode is a mode of connecting to the wireless network, and the offline mode is a mode of not connecting to the network, the user can still speak the corresponding voice sentence to control the voice wireless module 10 to complete the corresponding operation.
Referring to fig. 1, the level shift module 300 includes a level shift unit 310 and a connection terminal 320, wherein the level shift unit 310 is connected to the connection terminal 320, an output terminal of the voltage step-down module 100, the main control chip 210 and an external power source, respectively.
Thus, it should be noted that the level conversion unit 310 plays a role of level conversion, and the level conversion module 300 is configured to enable the voice wireless module 10 to have a level conversion function, so as to well prevent the communication port of the main control chip 210 from being damaged due to no conversion of a level signal when the main control chip 210 communicates with an external device, and have high reliability.
Referring to fig. 1, the audio module 400 includes an audio chip 410, a power amplifier unit 420, a microphone 430 and a speaker 440, the audio chip 410 is respectively connected to the main control chip 210, the power amplifier unit 420 and the microphone 430, the power amplifier unit 420 is respectively connected to the main control chip 210 and an external power source, and the speaker 440 is connected to the power amplifier unit 440.
Thus, it should be noted that the power amplifier unit 420 plays a role of amplifying the voice signal; the speech statement spoken by the user can be collected and transmitted to the audio chip 410 through the microphone 430; when the voice wireless module 10 completes the related operations, the speaker 440 plays the related voice signals to prompt the user.
Referring to fig. 1, the antenna module 500 includes a duplex unit 510 and a dual-band antenna 520, and the duplex unit 510 is connected to the main control chip 210 and the dual-band antenna 520, respectively.
Thus, it should be noted that, due to the arrangement of the dual-band antenna 520, the dual-band antenna integrates the functions of transceiving 2.4g and 5g frequency band signals, which can greatly simplify the circuit of the voice wireless module 10 and reduce the manufacturing cost.
Further, referring to fig. 2, in an embodiment, the buck module 100 includes a buck chip Q1, a capacitor C05, a resistor R02, a resistor R25, a capacitor C24, a capacitor C6, and an inductor L1, a 4 th pin of the buck chip Q1 is used as an input terminal of the buck module 100, one end of the capacitor C05 is connected to a 4 th pin of the buck chip Q1, the other end of the capacitor C05 is grounded, a 3 rd pin of the buck chip Q1 is connected to one end of the inductor L1, the other end of the inductor L1 is used as an output terminal of the buck module 100, one end of the capacitor C24 is connected to the other end of the inductor L1, the other end of the capacitor C24 is grounded, a 1 st pin of the buck chip Q1 is connected to a 4 th pin of the buck chip Q1, a 2 nd pin of the buck chip Q1 is grounded, a 5 th pin of the buck chip Q1 is connected in series with a capacitor C6 and the other end of the inductor L1, one end of the resistor R02 is connected to the first pin of the buck chip Q1 and the resistor R02, the resistor R25 is connected in parallel with the capacitor C6.
Thus, it should be noted that the voltage reduction chip Q1 plays a role of voltage reduction; the capacitor C05 plays a role in filtering; the inductor L1 is a power inductor; the resistor R02, the resistor R25 and the capacitor C6 form a feedback network, so that the voltage reduction chip Q1 can stably output the voltage after voltage reduction.
Further, referring to fig. 3, in an embodiment, the storage unit 220 includes a memory FLASH1, a resistor R12, and a capacitor C97, the 1 st, 2 nd, 5 th, and 6 th pins of the memory FLASH1 are all connected to the main control chip 210, the 3 rd pin series resistor R12 of the memory FLASH1 is connected to the output terminal of the voltage-dropping module 100, the 8 th pin series capacitor C97 of the memory FLASH1 is grounded, the 7 th pin of the memory FLASH1 is connected to the 8 th pin of the memory FLASH1, and the 4 th pin of the memory FLASH1 is grounded.
As described above, the memory FLASH1 functions as a storage, and offline-statements set in advance by the user can be stored in the memory FLASH 1.
Further, referring to fig. 4, in an embodiment, the level shifter unit 310 includes a level shifter chip Q8, a resistor R34, a resistor R33, a capacitor C4, a resistor R18, a resistor R32, a resistor R40, and a resistor R76, a pin 1 of the level shifter chip Q8 is connected to the main control chip 210, a level shifter chip Q8 series resistor R34 is connected to the output terminal of the voltage dropping module 100, a pin 3 of the level shifter chip Q8 is connected to the main control chip 210, a resistor R33 is connected to a pin 3 of the level shifter chip Q8, a resistor R33 is connected to the output terminal of the voltage dropping module 100, a capacitor C4 is connected to a pin 3 of the level shifter chip Q8, another capacitor C4 is connected to ground, a pin 4 series resistor R76 of the level shifter chip Q8 is connected to the connection terminal 320, a pin 5 series resistor R40 of the level shifter chip Q8 is connected to the output terminal of the voltage dropping module 100, the 6 th pin series resistor R32 of the level shift chip Q8 is connected to the connection terminal 320, one end of the resistor R18 is connected to the 6 th pin of the level shift chip Q8, and the other end of the resistor R18 is connected to an external power supply.
In this manner, the level shift chip Q8 plays a role of level shift; when the main control chip 210 communicates with an external device, for example, a 5V level signal is input to a communication port of the external device, the signal can be converted into a 3.3V level signal through the level conversion chip Q8, thereby effectively preventing the communication port of the main control chip 210 from being damaged due to the fact that the level signal is not converted in time.
Further, referring to fig. 4 again, in an embodiment, the level shifter unit 310 further includes a capacitor C74, one end of the capacitor C74 is connected to the 2 nd pin of the level shifter chip Q8, and the other end of the capacitor C74 is grounded.
Thus, it should be noted that the capacitor C74 functions as a filter.
Further, referring to fig. 4 again, in an embodiment, the level shifter unit 310 further includes a capacitor C75, one end of the capacitor C75 is connected to the 5 th pin of the level shifter chip Q8, and the other end of the capacitor C75 is grounded.
Thus, it should be noted that the capacitor C75 functions as a filter.
Further, referring to fig. 5, in an embodiment, the power amplifier unit 420 includes a power amplifier chip Q7, a resistor R37, a capacitor C100, a capacitor C63, a resistor R39, a capacitor C71, a resistor R75, a capacitor C70, a resistor R74, a capacitor C77, and a capacitor C140, a 1 st pin series resistor R37 of the power amplifier chip Q7 is connected to the main control chip 210, one end of the capacitor C100 is connected to a 1 st pin of the power amplifier chip Q7, the other end of the capacitor C100 is grounded, a 2 nd pin series capacitor C63 of the power amplifier chip Q7 is grounded, a 3 rd pin series resistor R39 and a capacitor C71 of the power amplifier chip Q7 are connected to the audio chip, a 4 th pin series resistor R75 and a capacitor C70 of the power amplifier chip Q7 are connected to the audio chip, a 5 th pin of the power amplifier chip Q7 is connected to the positive pole of the horn, a 8 th pin of the power amplifier chip Q7 is connected to the negative pole of the amplifier chip, and a first pin R8746 of the amplifier chip Q7 is connected to one end of the capacitor C74, the other end of the resistor R74 is connected with an external power supply, the other end of the capacitor C77 is grounded, the 7 th pin of the power amplifier chip Q7 is grounded, one end of the capacitor C140 is connected with the other end of the resistor R74, and the other end of the capacitor C140 is grounded.
Therefore, it should be noted that the power amplifier chip Q7 plays a role in amplifying the sound signal; the resistor R39, the capacitor C71, the resistor R75 and the capacitor C70 form a matching network of the power amplifier chip Q7; both capacitor C77 and capacitor C140 act as filtering.
Further, referring to fig. 6, in an embodiment, the duplexing unit 510 includes a duplexer U4, an inductor L10, a capacitor C73, a capacitor C65, an inductor L11, a capacitor C64, a capacitor C72, a capacitor C36, a capacitor C61, a resistor R31, and an inductor L5, wherein the first pin 1, the third pin 3, and the fifth pin 5 of the duplexer U4 are all grounded, the 6 th pin of the duplexer U4 is connected to one end of the inductor L4, the other end of the inductor L4 is connected to the main control chip 210, one end of the capacitor C4 is connected to one end of the inductor L4, the other end of the capacitor C4 is grounded, one end of the capacitor C4 is connected to the other end of the inductor L4, the other end of the capacitor C4 is grounded, the 4 th pin of the duplexer U4 is connected to one end of the inductor L4, the other end of the inductor L4 is connected to the main control chip 210, one end of the capacitor C4 is connected to one end of the inductor L4, the other end of the capacitor C72 is grounded, the 2 nd pin of the duplexer U4 is connected to one end of the capacitor C36, one end of the capacitor C81 and one end of the resistor R31, the other end of the capacitor C36 is grounded, the other end of the capacitor C61 is grounded, the other end of the resistor R31 is connected to one end of the inductor L5, and the other end of the inductor L5 is connected to the dual-band antenna 520.
Thus, it should be noted that the duplexer U4 functions to separate the 2.4g frequency band signal and the 5g frequency band signal received and transmitted by the dual-band antenna 520 into two paths and respectively transmit the two paths to the main control chip 210; the inductor L10, the capacitor C73, the capacitor C65, the inductor L11, the capacitor C64 and the capacitor C72 form a matching network of the duplexer U4; the capacitor C36 and the capacitor C61 function to tune the RF performance of the dual-band antenna 520.
Further, referring to fig. 6 again, in one embodiment, the duplexing unit 510 further includes a capacitor C51, and one end of the capacitor C51 is connected to the other end of the resistor R31.
Thus, it should be noted that the capacitor C51 functions as a filter.
Further, referring to fig. 6 again, in an embodiment, the duplex unit further includes a capacitor C52, one end of the capacitor C52 is connected to the other end of the inductor L5, and the other end of the capacitor C52 is grounded.
Thus, it should be noted that the capacitor C52 functions as a filter.
The voice wireless module of the utility model has the advantages that the voice wireless module has the function of level conversion by arranging the voltage reduction module, the main control module, the level conversion module, the audio module and the antenna module, and the communication port of the main control chip is well prevented from being damaged due to the fact that level signals are not converted when the main control chip is communicated with external equipment, and the reliability is high; in addition, due to the arrangement of the storage unit, a user can preset corresponding voice sentences, and even if the voice wireless module is not in an online mode, the user can still speak the corresponding voice sentences to control the voice wireless module to complete corresponding operation; moreover, the dual-frequency antenna integrates the functions of receiving and transmitting 2.4g and 5g frequency band signals, the circuit of the voice wireless module can be greatly simplified, and meanwhile, the manufacturing cost is also reduced.
The above embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A voice radio module, comprising:
the input end of the voltage reduction module is used for being connected with an external power supply;
the main control module comprises a main control chip and a storage unit, wherein a power supply end of the main control chip is connected with an output end of the voltage reduction module, and the storage unit is respectively connected with the main control chip and the output end of the voltage reduction module;
the level conversion module comprises a level conversion unit and a connecting terminal, and the level conversion unit is respectively connected with the connecting terminal, the output end of the voltage reduction module, the main control chip and an external power supply;
the audio module comprises an audio chip, a power amplification unit, a microphone and a loudspeaker, wherein the audio chip is respectively connected with the main control chip, the power amplification unit and the microphone, the power amplification unit is respectively connected with the main control chip and an external power supply, and the loudspeaker is connected with the power amplification unit; and
the antenna module comprises a duplex unit and a dual-frequency antenna, and the duplex unit is respectively connected with the main control chip and the dual-frequency antenna.
2. The voice wireless module according to claim 1, wherein the voltage-reducing module comprises a voltage-reducing chip Q1, a capacitor C05, a resistor R02, a resistor R25, a capacitor C24, a capacitor C6 and an inductor L1, the 4 th pin of the voltage-reducing chip Q1 is used as the input terminal of the voltage-reducing module, one end of the capacitor C05 is connected with the 4 th pin of the voltage-reducing chip Q1, the other end of the capacitor C05 is grounded, the 3 rd pin of the voltage-reducing chip Q1 is connected with one end of the inductor L1, the other end of the inductor L1 is used as the output terminal of the voltage-reducing module, one end of the capacitor C24 is connected with the other end of the inductor L1, the other end of the capacitor C24 is grounded, the 1 st pin of the voltage-reducing chip Q1 is connected with the 4 th pin of the voltage-reducing chip Q1, the 2 nd pin of the voltage-reducing chip Q1 is grounded, the 5 th pin of the voltage-reducing chip Q1 is connected with the other end of the inductor L1 in series, one end of the resistor R02 is connected with the 5 th pin of the voltage reduction chip Q1, the other end of the resistor R02 is grounded, and the resistor R25 is connected with the capacitor C6 in parallel.
3. The voice wireless module of claim 1, wherein the memory unit comprises a memory FLASH1, a resistor R12 and a capacitor C97, the 1 st, 2 nd, 5 th and 6 th pins of the memory FLASH1 are all connected with the main control chip, the 3 rd pin of the memory FLASH1 is connected in series with the resistor R12 and connected with the output end of the voltage-reducing module, the 8 th pin of the memory FLASH1 is connected in series with the capacitor C97 and grounded, the 7 th pin of the memory FLASH1 is connected with the 8 th pin of the memory FLASH1, and the 4 th pin of the memory FLASH1 is grounded.
4. The voice wireless module as claimed in claim 1, wherein the level shifter unit comprises a level shifter chip Q8, a resistor R34, a resistor R33, a capacitor C4, a resistor R18, a resistor R32, a resistor R40 and a resistor R76, the 1 st pin of the level shifter chip Q8 is connected to the main control chip, the level shifter chip Q8 is connected to the output terminal of the voltage dropping module in series with the resistor R34, the 3 rd pin of the level shifter chip Q8 is connected to the main control chip, one end of the resistor R33 is connected to the 3 rd pin of the level shifter chip Q8, the other end of the resistor R33 is connected to the output terminal of the voltage dropping module, one end of the capacitor C4 is connected to the 3 rd pin of the level shifter chip Q8, the other end of the capacitor C4 is grounded, the 4 th pin of the level shifter chip Q8 is connected to the connection terminal in series with the resistor R76, the 5 th pin of the level conversion chip Q8 is connected in series with the resistor R40 and the output end of the voltage reduction module, the 6 th pin of the level conversion chip Q8 is connected in series with the resistor R32 and the connection terminal, one end of the resistor R18 is connected with the 6 th pin of the level conversion chip Q8, and the other end of the resistor R18 is connected with an external power supply.
5. The voice wireless module of claim 4, wherein the level shifter unit further comprises a capacitor C74, one end of the capacitor C74 is connected to pin 2 of the level shifter Q8, and the other end of the capacitor C74 is connected to ground.
6. The voice wireless module of claim 4, wherein the level shifter unit further comprises a capacitor C75, one end of the capacitor C75 is connected to pin 5 of the level shifter chip Q8, and the other end of the capacitor C75 is connected to ground.
7. The voice wireless module of claim 1, wherein the power amplifier unit comprises a power amplifier chip Q7, a resistor R37, a capacitor C100, a capacitor C63, a resistor R39, a capacitor C71, a resistor R75, a capacitor C70, a resistor R74, a capacitor C77 and a capacitor C140, the 1 st pin of the power amplifier chip Q7 is connected in series with the resistor R37 and the main control chip, one end of the capacitor C100 is connected with the 1 st pin of the power amplifier chip Q7, the other end of the capacitor C100 is grounded, the 2 nd pin of the power amplifier chip Q7 is connected in series with the capacitor C63 and grounded, the 3 rd pin of the power amplifier chip Q7 is connected in series with the resistor R39 and the capacitor C71 and the audio chip, the 4 th pin of the power amplifier chip Q7 is connected in series with the resistor R75 and the capacitor C70 and the audio chip, the 5 th pin of the power amplifier chip Q7 is connected with the positive pole of the loudspeaker, the 8 th foot of power amplifier chip Q7 with the negative pole of loudspeaker is connected, power amplifier chip Q7 the 6 th foot respectively with resistance R74's one end with electric capacity C77's one end is connected, resistance R74's the other end is connected with external power supply, electric capacity C77's other end ground connection, power amplifier chip Q7's 7 th foot ground connection, electric capacity C140's one end with resistance R74's the other end is connected, electric capacity C140's the other end ground connection.
8. The voice wireless module as claimed in claim 1, wherein the duplex unit includes a duplexer U4, an inductor L10, a capacitor C73, a capacitor C65, an inductor L11, a capacitor C64, a capacitor C72, a capacitor C36, a capacitor C61, a resistor R31 and an inductor L5, the 1 st, 3 rd and 5 th pins of the duplexer U4 are all grounded, the 6 th pin of the duplexer U4 is connected to one end of the inductor L10, the other end of the inductor L10 is connected to the master chip, one end of the capacitor C73 is connected to one end of the inductor L10, the other end of the capacitor C73 is grounded, one end of the capacitor C65 is connected to the other end of the inductor L10, the other end of the capacitor C65 is grounded, the 4 th pin of the duplexer U4 is connected to one end of the inductor L11, the other end of the inductor L11 is connected to the master chip, one end of the capacitor C64 is connected to one end of the inductor L11, the other end ground connection of electric capacity C64, electric capacity C72's one end with inductance L11's the other end is connected, electric capacity C72's other end ground connection, duplexer U4's 2 nd foot respectively with electric capacity C36's one end, electric capacity C81's one end and resistance R31's one end is connected, electric capacity C36's other end ground connection, electric capacity C61's other end ground connection, resistance R31's the other end with inductance L5's one end is connected, inductance L5's the other end with dual-frenquency antenna connection.
9. The voice wireless module of claim 8, wherein the duplex unit further comprises a capacitor C51, one end of the capacitor C51 is connected to the other end of the resistor R31.
10. The voice wireless module of claim 8, wherein the duplex unit further comprises a capacitor C52, one terminal of the capacitor C52 is connected to the other terminal of the inductor L5, and the other terminal of the capacitor C52 is connected to ground.
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| CN202021515575.4U CN214043071U (en) | 2020-07-28 | 2020-07-28 | Voice wireless module |
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| CN202021515575.4U CN214043071U (en) | 2020-07-28 | 2020-07-28 | Voice wireless module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113726618A (en) * | 2021-08-25 | 2021-11-30 | 惠州高盛达科技有限公司 | Audio AIOT module based on control through mobile equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113726618A (en) * | 2021-08-25 | 2021-11-30 | 惠州高盛达科技有限公司 | Audio AIOT module based on control through mobile equipment |
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