Handheld radio station with train dispatching function

Abstract

The utility model provides a handheld radio station with a train dispatching function, and relates to the technical field of wireless communication, the handheld radio station with the train dispatching function comprises an antenna, a battery, a mainboard, a loudspeaker and a microphone, the mainboard is electrically connected with the antenna, the battery, the loudspeaker and the microphone, and the battery is used for providing electric energy for the handheld radio station; wherein the main board is provided with a vocoder, a control unit, a radio frequency unit and a signal processing unit, and the control unit is electrically connected with the vocoder, the radio frequency unit and the signal processing unit; the microphone and the loudspeaker are both connected to the vocoder; the radio frequency unit is electrically connected to the antenna. According to the utility model, the analog-to-digital converter and the digital-to-analog converter are arranged in the hand-held radio station, the hand-held radio station sends and receives digital modulation signals, and the digital modulation signals are used for transmission, so that the anti-interference performance of the signals is enhanced; and meanwhile, an encoder and a decoder are added in the handheld radio station, so that the safety of signals is enhanced.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a handheld radio with a modulation function. Background Art

[0002] A handheld radio is a wireless communication device that uses radio waves to transmit information. Compared with vehicle-mounted radios, fixed radios and other installation methods, it is more suitable for use on the move and has the characteristics of portability and flexibility.

[0003] In existing technology, a transmitting handheld radio converts non-electrical signals such as sound and light into analog signals, modulates these analog signals into analog modulated signals suitable for transmission over a specific channel, and then sends the analog modulated signals to the channel for transmission. The analog modulated signals are then transmitted over telephone lines, radio waves, or other media. A receiving handheld radio demodulates the received analog modulated signals to obtain analog signals, which are then converted back into non-electrical signals.

[0004] However, in the prior art, analog modulated signals have poor confidentiality and weak anti-interference capabilities, which reduces the security and accuracy of signal transmission. Utility Model Content

[0005] In view of the above problems, an embodiment of the present invention provides a handheld radio with a modulation function to solve the problems of low signal security and poor anti-interference performance caused by signal transmission through analog modulation signals in existing handheld radios.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] In a first aspect, the utility model provides a handheld radio with a modulation function, comprising: an antenna (10), a battery (20), a mainboard (30), a speaker (40) and a microphone (50), wherein the mainboard (30) is electrically connected to the antenna (10), the battery (20), the speaker (40) and the microphone (50), and the battery (20) is used to provide electric energy to the handheld radio; wherein the mainboard (30) is provided with: a vocoder (301), a control unit (302), a radio frequency unit (303) and a signal processing unit (304), and the control unit (302) is electrically connected to the vocoder (301), the radio frequency unit (303) and the signal processing unit (304). 04) is electrically connected; the microphone (50) and the speaker (40) are both connected to the vocoder (301); the radio frequency unit (303) is electrically connected to the antenna (10); when the handheld radio is in a transmitting state, the microphone (50) is used to collect a first voice analog signal and send the first voice analog signal to the vocoder (301); the vocoder (301) is used to perform analog-to-digital conversion and encoding on the first voice analog signal to obtain a first voice coding signal, and send the first voice coding signal to the signal processing unit (304) through the control unit (302); the signal processing unit (304) is used to perform channel coding on the first voice coding signal , packaging, filtering and modulating to obtain a first modulated voice signal, and sending the first modulated voice signal to the radio frequency unit (303) through the control unit (302), the radio frequency unit (303) is used to power amplify the first modulated voice signal to obtain a first radio frequency signal, and send the first radio frequency signal to the antenna (10), the antenna (10) is used to send the first radio frequency signal to other radio stations; when the handheld radio is in a receiving state, the antenna (10) is used to receive a second radio frequency signal sent by the other radio stations, and send the second radio frequency signal to the radio frequency unit (303), the radio frequency unit (303) is used to power amplify and digitally convert the second radio frequency signal The invention relates to a method for transmitting the second modulated voice signal to the signal processing unit (304) through the control unit (302), wherein the signal processing unit (304) is used for demodulating, protocol analyzing and channel decoding the second modulated voice signal to obtain a second voice coding signal, and the second voice coding signal is sent to the vocoder (301) through the control unit (302), wherein the vocoder (301) is used for decoding and power amplifying the second voice coding signal to obtain a second voice analog signal, and the second voice analog signal is sent to the speaker (40), wherein the speaker (40) is used for playing the second voice analog signal.

[0008] Optionally, the handheld radio further comprises: a knob (60) and a button (70); the knob (60) is electrically connected to the control unit (302); the knob (60) is used to trigger a channel number signal and send the channel number signal to the control unit (302); the control unit (302) is used to adjust the number of channels for the antenna (10) to receive radio frequency signals based on the channel number signal; the button (70) is electrically connected to the control unit (302); the button (70) is used to trigger a collection status signal and send the collection status signal to the control unit (302); the control unit (302) is used to adjust whether the microphone (50) starts to collect the first voice analog signal or stops collecting the first voice analog signal based on the collection status signal.

[0009] Optionally, the handheld radio further comprises: indicator lights (80), the indicator lights (80) comprising a first indicator light (801), a second indicator light (802), a third indicator light (803) and a fourth indicator light (804); the first indicator light (801) is electrically connected to the control unit (302), and the first indicator light (801) is used to indicate whether the handheld radio is turned on under the control of the control unit (302); the second indicator light (802) is electrically connected to the control unit (302), and the second indicator light (802) is used to indicate whether the antenna (10) is in a transmitting state or a receiving state under the control of the control unit (302); the third indicator light (803) is electrically connected to the control unit (302), and the third indicator light (803) is used to indicate the number of channels on which the antenna (10) receives radio frequency signals under the control of the control unit (302); and the fourth indicator light (804) is electrically connected to the control unit (302), and the fourth indicator light (804) is used to indicate the power level of the battery (20) under the control of the control unit (302).

[0010] Optionally, the handheld radio further includes: an internal clock (90); the internal clock (90) and the speaker (40) are both electrically connected to the control unit (302), the internal clock (90) is used to record the current time and send the current time to the control unit (302), the control unit (302) is used to send the current time to the speaker (40), and the speaker (40) is used to broadcast the current time.

[0011] Optionally, the vocoder (301) includes: a first analog-to-digital converter (3011), a first encoder (3012), a first decoder (3013), a first digital-to-analog converter (3014) and a first power amplifier (3015); the first analog-to-digital converter (3011) is electrically connected to the microphone (50) and the first encoder (3012), and the first analog-to-digital converter (3011) is used to perform analog-to-digital conversion on the first voice analog signal sent by the microphone (50) to obtain a first digital signal, and send the first digital signal to the a first encoder (3012); the first encoder (3012) is electrically connected to the control unit (302); the first encoder (3012) is used to encode the first digital signal sent by the first analog-to-digital converter (3011) to obtain a first speech coding signal, and send the first speech coding signal to the control unit (302); the control unit (302) is used to send the first speech coding signal to the signal processing unit (304); the first decoder (3013) is respectively connected to the control unit (302), the first digital signal The control unit (302) is electrically connected to the first digital-to-analog converter (3014), the control unit (302) is used to send the second speech coding signal sent by the signal processing unit (304) to the first decoder (3013), the first decoder (3013) is used to decode the second speech coding signal sent by the control unit (302) to obtain a second digital signal, and send the second digital signal to the first digital-to-analog converter (3014); the first digital-to-analog converter (3014) is electrically connected to the first power amplifier (3015), the first digital-to-analog converter (3014) is used to perform digital-to-analog conversion on the second digital signal sent by the first decoder (3013) to obtain a third speech analog signal, and send the third speech analog signal to the first power amplifier (3015); the first power amplifier (3015) is electrically connected to the speaker (40), the first power amplifier (3015) is used to perform power amplification on the third speech analog signal sent by the first digital-to-analog converter (3014) to obtain the second speech analog signal, and send the second speech analog signal to the speaker (40).

[0012] Optionally, the signal processing unit (304) includes: a second encoder (3041), a second decoder (3042), an encapsulator (3043), a first filter (3044), a modulator (3045), a demodulator (3046) and a parser (3047); the second encoder (3041) is electrically connected to the control unit (302) and the encapsulator (3043) respectively, the control unit (302) is used to send the first speech coded signal sent by the vocoder (301) to the second encoder (3041), and the second encoder (3041) is used to perform channel coding on the first speech coded signal sent by the control unit (302) to obtain a first channel coded signal. The first channel coded signal is transmitted from the second encoder (3041) to the first filter (3044), and the first channel coded signal is transmitted from the second encoder (3041) to the first filter (3044). The first filter (3044) is electrically connected to the modulator (3045), and the first filter (3044) is used to filter the first channel coded signal transmitted from the encapsulator (3043) to obtain a first data packet, and transmit the first data packet to the first filter (3044). The modulator (3045) is electrically connected to the modulator (3045), and the first filter (3044) is used to filter the first data packet transmitted from the encapsulator (3043) to obtain a second data packet, and transmit the second data packet to the modulator (3045). The demodulator (3046) is electrically connected to the control unit (302) and the parser (3047). The control unit (302) is used to send the second modulated voice signal sent by the radio frequency unit (303) to the demodulator (3046). The demodulator (3046) is used to demodulate the second modulated voice signal sent by the control unit (302) to obtain a third data packet. and sending the third data packet to the parser (3047); the parser (3047) is electrically connected to the second decoder (3042), and the parser (3047) is used to parse the third data packet sent by the demodulator (3046) to obtain a second channel coded signal, and send the second channel coded signal to the second decoder (3042); the second decoder (3042) is electrically connected to the control unit (302), and the second decoder (3042) is used to channel-decode the second channel coded signal sent by the parser (3047) to obtain a second voice coded signal, and send the second voice coded signal to the control unit (302).

[0013] Optionally, the radio frequency unit (303) includes: a second power amplifier (3031), a second filter (3032), a second analog-to-digital converter (3033) and a digital frequency converter (3034); the second power amplifier (3031) is electrically connected to the control unit (302) and the antenna (10) respectively, the control unit (302) is used to send the first modulated voice signal sent by the signal processing unit (304) to the second power amplifier (3031), the second power amplifier (3031) is used to power amplify the first modulated voice signal sent by the control unit (302) to obtain the first radio frequency signal, and send the first radio frequency signal to the antenna (10); the second power amplifier (3031) is also electrically connected to the digital frequency converter (3034), the second power amplifier (3031) is used to power amplify the second radio frequency signal sent by the antenna (10) to obtain an amplified radio frequency signal, and send the amplified radio frequency signal to the digital frequency converter (3034); the digital frequency converter (3034) is electrically connected to the second filter (3032), the digital frequency converter (3034) is used to perform frequency conversion on the amplified radio frequency signal sent by the second power amplifier (3031) to obtain a frequency conversion signal, and send the frequency conversion signal to the second filter (3032); the second filter (3032) is electrically connected to the second analog-to-digital converter (3033), the second filter (3032) is used to filter the frequency conversion signal sent by the digital frequency converter (3034) to obtain a filtered signal, and send the filtered signal to the second analog-to-digital converter (3033); the second analog-to-digital converter (3033) is electrically connected to the control unit (302), the second analog-to-digital converter (3033) is used to perform analog-to-digital conversion on the filtered signal sent by the second filter (3032) to obtain the second modulated voice signal, and send the second modulated voice signal to the control unit (302).

[0014] Optionally, the radio frequency unit (303) further includes: a signaling receiver (3035) and a signaling transmitter (3036); the signaling receiver (3035) is electrically connected to the control unit (302), and the signaling receiver (3035) is used to send the signaling to the control unit (302) after receiving the signaling sent by the remaining radio stations; the signaling transmitter (3036) is electrically connected to the control unit (302), and the signaling transmitter (3036) is used to send the signaling to the remaining radio stations after receiving the signaling sent by the control unit (302).

[0015] Optionally, the main board (30) is further provided with: a storage unit (305); the storage unit (305) is electrically connected to the control unit (302), and the storage unit (305) is used to store the signaling when the control unit (302) sends the signaling to the signaling transmitter (4037) and when the control unit (302) receives the signaling sent by the signaling receiver (4036).

[0016] Optionally, the handheld radio further comprises: a registration unit (100); the registration unit (100) is electrically connected to the control unit (302), and the registration unit (100) is used to register the handheld radio with the digital modulation system in which the handheld radio is located after receiving a power-on signal sent by the control unit (302).

[0017] Compared with the prior art, the handheld radio with a modulation function provided by an embodiment of the present invention has the following advantages: an analog-to-digital converter and a digital-to-analog converter are provided in the handheld radio, and the handheld radio receives and sends digital modulated signals, which are transmitted using digital modulated signals, thereby enhancing the signal's anti-interference ability; at the same time, an encoder and a decoder are added to the handheld radio, thereby enhancing the signal security.

[0018] In addition to the technical problems solved by the embodiments of the utility model described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by a handheld radio with a modulation function provided by the embodiments of the utility model, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the structure of a handheld radio with a serial modulation function provided by one embodiment of the present utility model;

[0021] Figure 2 A schematic structural diagram of a handheld radio with a serial modulation function provided by another embodiment of the present invention;

[0022] Figure 3A schematic structural diagram of a handheld radio with a serial modulation function provided by another embodiment of the present invention;

[0023] Figure 4 A schematic structural diagram of a handheld radio with a serial modulation function provided by another embodiment of the present invention;

[0024] Figure 5 A schematic structural diagram of a handheld radio with a serial modulation function provided by another embodiment of the present invention;

[0025] Figure 6 A schematic structural diagram of a handheld radio with a serial modulation function provided by another embodiment of the present invention;

[0026] Figure 7 A schematic structural diagram of a handheld radio with a serial modulation function provided by another embodiment of the present invention;

[0027] Figure 8 A schematic structural diagram of a handheld radio with a serial modulation function provided by another embodiment of the present invention;

[0028] Figure 9 A schematic structural diagram of a handheld radio with a serial modulation function provided by another embodiment of the present invention;

[0029] Figure 10 This is a structural diagram of a handheld radio with a modulation function provided by another embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 10-antenna;

[0032] 20-battery;

[0033] 30- Mainboard;

[0034] 301-Vocoder;

[0035] 3011-first analog-to-digital converter;

[0036] 3012-first encoder;

[0037] 3013-first decoder;

[0038] 3014-first digital-to-analog converter;

[0039] 3015-first power amplifier;

[0040] 302-control unit;

[0041] 303-RF unit;

[0042] 3031-second power amplifier;

[0043] 3032-second filter;

[0044] 3033-second analog-to-digital converter;

[0045] 3034-digital frequency converter;

[0046] 3035-Signaling Receiver;

[0047] 3036-Signaling transmitter;

[0048] 304-Signal processing unit;

[0049] 3041-second encoder;

[0050] 3042-second decoder;

[0051] 3043-encapsulator;

[0052] 3044-first filter;

[0053] 3045-Modulator;

[0054] 3046-demodulator;

[0055] 3047-parser;

[0056] 305-storage unit;

[0057] 40-speakers;

[0058] 50-Microphone;

[0059] 60-knob;

[0060] 70-buttons;

[0061] 80-indicator light;

[0062] 801-first indicator light;

[0063] 802-second indicator light;

[0064] 803-third indicator light;

[0065] 804-fourth indicator light;

[0066] 90-internal clock;

[0067] 100-registration unit. DETAILED DESCRIPTION

[0068] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0069] The present disclosure is specifically used in wireless communication scenarios and can be used to achieve communication between different radio stations. In existing handheld radios, the transmitting handheld radio converts non-electrical signals such as sound and light into analog signals, modulates these analog signals into analog modulated signals, and then sends the analog modulated signals to the channel for transmission. The receiving handheld radio demodulates the received analog modulated signal to obtain an analog signal, and then restores the analog signal to a non-electrical signal. However, the confidentiality of the analog modulated signal is poor, and the anti-interference ability is weak, which reduces the security and accuracy of signal transmission.

[0070] To address the aforementioned technical issues, the present invention proposes the following technical approach: An analog-to-digital converter and a digital-to-analog converter are incorporated into the handheld radio. When the handheld radio is transmitting, the analog-to-digital converter converts the analog signal into a digital signal, and subsequent transmissions are also digitally modulated signals. When the handheld radio is receiving, the digital-to-analog converter converts the received digitally modulated signal into an analog signal. Transmission using digitally modulated signals enhances the signal's anti-interference capabilities. Furthermore, an encoder and decoder are incorporated into the handheld radio to enhance signal security.

[0071] Figure 1 The following is a schematic diagram of the structure of a handheld radio with a modulation function provided by one embodiment of the present invention. In this embodiment, the handheld radio with a modulation function specifically includes: an antenna 10, a battery 20, a mainboard 30, a speaker 40, and a microphone 50. The mainboard 30 is electrically connected to the antenna 10, the battery 20, the speaker 40, and the microphone 50, respectively. The battery 20 is used to provide power to the handheld radio.

[0072] Optionally, antenna 10 may be an external telescopic antenna. Battery 20 may be a lithium battery. Mainboard 30 may be an integrated mainboard. Speaker 40 may be an external speaker. Microphone 50 may be a handheld microphone.

[0073] Specifically, the motherboard 30 can be wired to the antenna 10, battery 20, speaker 40, and microphone 50 via wires. For example, the motherboard 30 typically has a dedicated antenna interface, such as an SMA interface, into which the antenna 10 can be directly plugged. The positive and negative terminals of the battery 20 can be connected to corresponding interfaces on the motherboard 30 via wires. The motherboard 30 also has an audio output interface, typically an SPK interface, to which the speaker 40 can be connected via wires. The microphone 50 can be connected to a USB interface on the motherboard 30 via an audio cable.

[0074] Specifically, the mainboard 30 can be connected to the antenna 10, battery 20, speaker 40, and microphone 50 respectively through an interface board. For example, if the mainboard 30 does not have an antenna interface, an interface board can be used to connect the antenna 10. The interface board is connected to the mainboard 30 through the interface, and the antenna 10 is then connected to the interface board. Similarly, if the mainboard 30 does not have a battery interface, a power board can be used to connect the battery 20. The power board is connected to the mainboard 30 through the interface, and the battery 20 is then connected to the power board. An audio interface board can be used to connect the speaker 40. The audio interface board is connected to the mainboard 30 through the interface, and the speaker 40 is then connected to the audio interface board. If the mainboard 30 does not have a microphone interface, an audio input interface board can be used to connect the audio input interface board. The audio input interface board is connected to the mainboard 30 through the interface, and the interface portion of the microphone 50 is then inserted into the audio input interface board.

[0075] The mainboard 30 is provided with: a vocoder 301 , a control unit 302 , a radio frequency unit 303 and a signal processing unit 304 . The control unit 302 is electrically connected to the vocoder 301 , the radio frequency unit 303 and the signal processing unit 304 , respectively.

[0076] Optionally, the vocoder 301 may be a channel vocoder, the control unit 302 may be a microprogrammed control unit, the radio frequency unit 303 may be a remote radio frequency unit, and the signal processing unit 304 may be a radio frequency signal processing unit.

[0077] Specifically, the control unit 302 can be connected to the vocoder 301, the radio frequency unit 303, and the signal processing unit 304 via wires. For example, the audio output port of the control unit 302 can be connected to the audio input port of the vocoder 301 via an audio interface cable. The radio frequency signal output port of the control unit 302 can be connected to the radio frequency signal input port of the radio frequency unit 303 via a cable. The data output port of the control unit 302 can be connected to the data input port of the signal processing unit 304 via a data cable.

[0078] Specifically, the control unit 302 can be connected to the vocoder 301, the radio frequency unit 303, and the signal processing unit 304 respectively through an interface board. For example, if the control unit 302 does not have a vocoder interface, an interface board can be used to connect to the vocoder 301. The interface board is connected to the control unit 302 through the interface, and the vocoder 301 is then connected to the interface board. Similarly, if the main board 30 does not have a radio frequency unit interface, a radio frequency board can be used to connect to the radio frequency unit. The radio frequency board is connected to the control unit 302 through the interface, and the radio frequency unit is then connected to the radio frequency board. A signal interface board can be used to connect to the signal processing unit 304. The signal interface board is connected to the control unit 302 through the interface, and the signal processing unit 304 is then connected to the signal interface board.

[0079] The microphone 50 and the speaker 40 are both connected to the vocoder 301 ; the radio frequency unit 303 is electrically connected to the antenna 10 .

[0080] Specifically, the vocoder 301 can be connected to the microphone 50 and the speaker 40 by wires, respectively, and the RF unit 303 can be connected to the antenna 10 by wires. For example, the microphone 50 is connected to the input port of the vocoder 301 via an audio cable, the speaker 40 is connected to the output port of the vocoder 301 via an audio cable, and the RF unit 303 is connected to the antenna 10 via a radio frequency cable.

[0081] Specifically, the vocoder 301 can be wirelessly connected to the microphone 50 and the speaker 40 respectively, and the RF unit 303 can be wirelessly connected to the antenna 10. For example, the microphone 50 is provided with a wireless transmission module, which can send a first voice analog signal to the vocoder 301. The vocoder 301 also has a built-in corresponding wireless receiving module, which can receive the first voice analog signal sent by the microphone 50. The vocoder 301 also has a built-in wireless transmission module, which can send a second voice analog signal to the speaker 40, and the speaker 40 also has a built-in corresponding wireless receiving module, which can receive the second voice analog signal sent by the vocoder 301. The RF unit 303 is provided with a wireless transmission module, which can send a first RF signal to the antenna 10. The antenna 10 also has a built-in corresponding wireless receiving module, which can receive the first RF signal sent by the RF unit 303.

[0082] The working process of the handheld radio with the modulation function in this embodiment includes:

[0083] When the handheld radio is in the sending state, the microphone 50 is used to collect the first voice analog signal and send the first voice analog signal to the vocoder 301. The vocoder 301 is used to perform analog-to-digital conversion and encoding on the first voice analog signal to obtain a first voice coding signal, and send the first voice coding signal to the signal processing unit 304 through the control unit 302. The signal processing unit 304 is used to perform channel encoding, packaging, filtering and modulating on the first voice coding signal to obtain a first modulated voice signal, and send the first modulated voice signal to the RF unit 303 through the control unit 302. The RF unit 303 is used to power amplify the first modulated voice signal to obtain a first RF signal, and send the first RF signal to the antenna 10. The antenna 10 is used to send the first RF signal to the remaining radio stations.

[0084] When the handheld radio is in a receiving state, the antenna 10 is used to receive the second RF signal sent by the other radio stations and send the second RF signal to the RF unit 303. The RF unit 303 is used to power amplify, digitally convert, filter and analog-to-digital convert the second RF signal to obtain a second modulated voice signal, and send the second modulated voice signal to the signal processing unit 304 through the control unit 302. The signal processing unit 304 is used to demodulate, parse the protocol and channel decode the second modulated voice signal to obtain a second voice coding signal, and send the second voice coding signal to the vocoder 301 through the control unit 302. The vocoder 301 is used to decode and power amplify the second voice coding signal to obtain a second voice analog signal, and send the second voice analog signal to the speaker 40. The speaker 40 is used to play the second voice analog signal.

[0085] In summary, by setting up an analog-to-digital converter and a digital-to-analog converter in the handheld radio, the handheld radio can receive and send digital modulated signals and transmit them in the form of digital modulated signals, thereby enhancing the signal's anti-interference ability; by setting up an encoder and a decoder in the handheld radio, the signal's security is enhanced.

[0086] refer to Figure 2 , Figure 2 The handheld radio with a serial modulation function is provided as a structural diagram of another embodiment of the present invention. The handheld radio with a serial modulation function is further provided with a knob 60 and a button 70.

[0087] Optionally, the knob 60 may be a potentiometer knob, and the button 70 may be a push button switch.

[0088] The knob 60 is electrically connected to the control unit 302; the knob 60 is used to trigger the channel number signal and send the channel number signal to the control unit 302. The control unit 302 is used to adjust the number of channels for the antenna 10 to receive RF signals based on the channel number signal.

[0089] Specifically, the knob 60 may be connected to the control unit 302 via a wire. For example, the knob 60 is connected to an input port of the control unit 302 via a wire.

[0090] Specifically, the knob 60 can be wirelessly connected to the control unit 302. For example, the knob 60 is provided with a wireless transmission module, which can send knob signals to the control unit 302. The control unit 302 also has a corresponding built-in wireless receiving module, which can receive the knob signals sent by the knob 60.

[0091] The button 70 is electrically connected to the control unit 302; the button 70 is used to trigger the acquisition status signal and send the acquisition status signal to the control unit 302. The control unit 302 is used to adjust whether the microphone 50 starts to acquire the first voice analog signal or stops acquiring the first voice analog signal based on the acquisition status signal.

[0092] Specifically, the button 70 may be connected to the control unit 302 via a wire. For example, the button 70 is connected to an input port of the control unit 302 via a wire.

[0093] Specifically, the button 70 can be wirelessly connected to the control unit 302. For example, a wireless transmission module is provided in the button 70 to transmit a key signal to the control unit 302. The control unit 302 also has a corresponding built-in wireless receiving module to receive the key signal sent by the button 70.

[0094] In summary, by setting a knob in the handheld radio, the handheld radio can adjust the number of channels on which the antenna receives RF signals, thereby improving the communication efficiency of the handheld radio. By setting a button in the handheld radio, the user is provided with a convenient method for controlling voice collection and improving the flexibility of the communication process.

[0095] refer to Figure 3 , Figure 3 The handheld radio with a modulation function is provided as a structural diagram of another embodiment of the present invention. The handheld radio with a modulation function is further provided with an indicator light 80 , which includes a first indicator light 801 , a second indicator light 802 , a third indicator light 803 and a fourth indicator light 804 .

[0096] Optionally, the indicator light 80 may be an LED light.

[0097] The first indicator light 801 is electrically connected to the control unit 302 . The first indicator light 801 is used to indicate whether the handheld radio is turned on under the control of the control unit 302 .

[0098] Specifically, the first indicator light 801 can be connected to the control unit 302 via a wired connection. For example, the first indicator light 801 can be directly connected to a digital output port of the control unit 302. When the control unit 302 detects that the radio is powered on, it sends a high-level signal through the digital output port, causing the first indicator light 801 to illuminate. When the control unit 302 detects that the radio is powered off, it sends a low-level signal, causing the first indicator light 801 to turn off.

[0099] Specifically, the first indicator light 801 can be wirelessly connected to the control unit 302. For example, the control unit 302 is provided with a wireless transmission module that can send wireless signals to the first indicator light 801. The first indicator light 801 also has a built-in corresponding wireless receiving module that can receive the signal sent by the control unit 302. The control unit 302 can send a specifically coded signal to the first indicator light 801 via the wireless transmission module, causing it to light up.

[0100] The second indicator light 802 is electrically connected to the control unit 302 . The second indicator light 802 is used to indicate whether the antenna 10 is in a transmitting state or a receiving state under the control of the control unit 302 .

[0101] Specifically, the second indicator light 802 can be connected to the control unit 302 via a wired connection. For example, the second indicator light 802 can be directly connected to a digital output port of the control unit 302. When the control unit 302 detects that the radio station is in the transmitting state, it sends a high-level signal through the digital output port, causing the second indicator light 802 to light up. When the control unit 302 detects that the radio station is in the receiving state, it sends a low-level signal, causing the second indicator light 802 to turn off.

[0102] Specifically, the second indicator light 802 can be wirelessly connected to the control unit 302. For example, the control unit 302 is provided with a wireless transmission module that can send wireless signals to the second indicator light 802. The second indicator light 802 also has a built-in corresponding wireless receiving module that can receive the signal sent by the control unit 302. The control unit 302 can send a specifically coded signal to the second indicator light 802 via the wireless transmission module, causing it to light up.

[0103] The third indicator light 803 is electrically connected to the control unit 302 . The third indicator light 803 is used to indicate the number of channels on which the antenna 10 receives radio frequency signals under the control of the control unit 302 .

[0104] Specifically, the third indicator light 803 can be connected to the control unit 302 via a wired connection. For example, the third indicator light 803 can be directly connected to a digital output port of the control unit 302. When the control unit 302 detects that the number of channels receiving RF signals on the radio is 1, a high-level signal is sent through the digital output port, causing the third indicator light 803 to illuminate. When the control unit 302 detects that the number of channels receiving RF signals on the radio is 2, a low-level signal is sent, causing the third indicator light 803 to turn off.

[0105] Specifically, the third indicator light 803 can be wirelessly connected to the control unit 302. For example, the control unit 302 is provided with a wireless transmission module that can send wireless signals to the third indicator light 803. The third indicator light 803 also has a built-in corresponding wireless receiving module that can receive the signal sent by the control unit 302. The control unit 302 can send a specifically coded signal to the third indicator light 803 via the wireless transmission module, causing it to light up.

[0106] The fourth indicator light 804 is electrically connected to the control unit 302 . The fourth indicator light 804 is used to indicate the power status of the battery 20 under the control of the control unit 302 .

[0107] Specifically, the fourth indicator light 804 can be connected to the control unit 302 via a wired connection. For example, the fourth indicator light 804 can be directly connected to a digital output port of the control unit 302. When the control unit 302 detects that the radio battery level is less than 10%, it sends a high-level signal through the digital output port, causing the fourth indicator light 804 to illuminate. When the control unit 302 detects that the radio battery level is greater than 10%, it sends a low-level signal, causing the fourth indicator light 804 to turn off.

[0108] Specifically, the fourth indicator light 804 can be wirelessly connected to the control unit 302. For example, the control unit 302 is provided with a wireless transmission module that can transmit a wireless signal to the fourth indicator light 804. The fourth indicator light 804 also has a built-in corresponding wireless receiving module that can receive the signal sent by the control unit 302. The control unit 302 can send a specifically coded signal to the fourth indicator light 804 via the wireless transmission module, causing it to light up.

[0109] In summary, through these four indicator lights, users can understand the working status of the radio more conveniently and quickly, thereby improving operational efficiency.

[0110] refer to Figure 4 , Figure 4 This is a structural diagram of a handheld radio with a serial modulation function provided by another embodiment of the present invention. The handheld radio with a serial modulation function is further provided with an internal clock 90.

[0111] Alternatively, the internal clock 90 may be a network synchronized clock.

[0112] The internal clock 90 and the speaker 40 are both electrically connected to the control unit 302. The internal clock 90 is used to record the current time and send the current time to the control unit 302. The control unit 302 is used to send the current time to the speaker 40. The speaker 40 is used to broadcast the current time.

[0113] Specifically, the control unit 302 may be connected to the internal clock 90 and the speaker 40 via wires. For example, the control unit 302 may be connected to the internal clock 90 and the speaker 40 via cables.

[0114] Specifically, the control unit 302 can be wirelessly connected to the internal clock 90 and the speaker 40. For example, the internal clock 90 is provided with a wireless transmission module, which can send the current time to the control unit 302. The control unit 302 also has a built-in corresponding wireless receiving module, which can receive the current time sent by the internal clock 90. The control unit 302 also has a built-in wireless transmission module, which can send the current time to the speaker 40. The speaker 40 also has a built-in corresponding wireless receiving module, which can receive the current time sent by the control unit 302.

[0115] In summary, by setting an internal clock in the handheld radio, the user can obtain accurate time while using the handheld radio. Accurate time can ensure the accuracy and timeliness of communication records, thereby improving communication efficiency.

[0116] refer to Figure 5 , Figure 5 This is a schematic diagram of the structure of a handheld radio with a serial modulation function provided by another embodiment of the present invention. In the handheld radio with a serial modulation function, the vocoder 301 includes: a first analog-to-digital converter 3011, a first encoder 3012, a first decoder 3013, a first digital-to-analog converter 3014 and a first power amplifier 3015.

[0117] Optionally, the first analog-to-digital converter 3011 can be a PCM1803A analog-to-digital converter, the first encoder 3012 can be an adaptive multi-rate broadband encoder, the first decoder 3013 can be an adaptive multi-rate broadband decoder, the first digital-to-analog converter 3014 can be a PCM5102A digital-to-analog converter, and the first power amplifier 3015 can be a TPA3116 power amplifier.

[0118] The first analog-to-digital converter 3011 is electrically connected to the microphone 50 and the first encoder 3012 respectively. The first analog-to-digital converter 3011 is used to perform analog-to-digital conversion on the first voice analog signal sent by the microphone 50 to obtain a first digital signal, and send the first digital signal to the first encoder 3012.

[0119] Specifically, the first analog-to-digital converter 3011 may be connected to the microphone 50 and the first encoder 3012 via wires. For example, the first analog-to-digital converter 3011 may be connected to the microphone 50 and the first encoder 3012 via cables.

[0120] Specifically, the first analog-to-digital converter 3011 can be wirelessly connected to the microphone 50 and the first encoder 3012. For example, the microphone 50 is provided with a wireless transmission module, which can transmit the first voice analog signal to the first analog-to-digital converter 3011. The first analog-to-digital converter 3011 also has a built-in corresponding wireless receiving module, which can receive the first voice analog signal transmitted by the microphone 50. The first analog-to-digital converter 3011 also has a built-in wireless transmission module, which can transmit the first digital signal to the first encoder 3012. The first encoder 3012 also has a built-in corresponding wireless receiving module, which can receive the first digital signal transmitted by the first analog-to-digital converter 3011.

[0121] The first encoder 3012 is electrically connected to the control unit 302. The first encoder 3012 is used to encode the first digital signal sent by the first analog-to-digital converter 3011 to obtain a first voice coding signal, and send the first voice coding signal to the control unit 302. The control unit 302 is used to send the first voice coding signal to the signal processing unit 304.

[0122] Specifically, the first encoder 3012 may be connected to the control unit 302 via a wire. For example, the first encoder 3012 may be connected to the control unit 302 via a wire.

[0123] Specifically, the first encoder 3012 can be wirelessly connected to the control unit 302. For example, the first encoder 3012 is provided with a wireless transmission module, which can transmit the first speech encoding signal to the control unit 302. The control unit 302 also has a corresponding built-in wireless receiving module, which can receive the first speech encoding signal transmitted by the first encoder 3012.

[0124] The first decoder 3013 is electrically connected to the control unit 302 and the first digital-to-analog converter 3014 respectively. The control unit 302 is used to send the second voice coding signal sent by the signal processing unit 304 to the first decoder 3013. The first decoder 3013 is used to decode the second voice coding signal sent by the control unit 302 to obtain a second digital signal, and send the second digital signal to the first digital-to-analog converter 3014.

[0125] Specifically, the first decoder 3013 may be connected to the control unit 302 and the first digital-to-analog converter 3014 via wires. For example, the first decoder 3013 may be connected to the control unit 302 and the first digital-to-analog converter 3014 via cables.

[0126] Specifically, the first decoder 3013 can be wirelessly connected to the control unit 302 and the first digital-to-analog converter 3014. For example, the control unit 302 is provided with a wireless transmission module, which can transmit the second speech coding signal to the first decoder 3013. The first decoder 3013 also has a built-in corresponding wireless receiving module, which can receive the second speech coding signal transmitted by the control unit 302. The first decoder 3013 also has a built-in wireless transmission module, which can transmit the second digital signal to the first digital-to-analog converter 3014. The first digital-to-analog converter 3014 also has a built-in corresponding wireless receiving module, which can receive the second digital signal transmitted by the first decoder 3013.

[0127] The first digital-to-analog converter 3014 is electrically connected to the first power amplifier 3015 . The first digital-to-analog converter 3014 is used to perform digital-to-analog conversion on the second digital signal sent by the first decoder 3013 to obtain a third voice analog signal, and send the third voice analog signal to the first power amplifier 3015 .

[0128] Specifically, the first digital-to-analog converter 3014 may be connected to the first power amplifier 3015 via a wire. For example, the first digital-to-analog converter 3014 is connected to the first power amplifier 3015 via a wire.

[0129] Specifically, the first digital-to-analog converter 3014 can be wirelessly connected to the first power amplifier 3015. For example, the first digital-to-analog converter 3014 is provided with a wireless transmission module that can transmit the third voice analog signal to the first power amplifier 3015. The first power amplifier 3015 also has a built-in corresponding wireless reception module that can receive the third voice analog signal transmitted by the first digital-to-analog converter 3014.

[0130] The first power amplifier 3015 is electrically connected to the speaker 40 . The first power amplifier 3015 is used to power-amplify the third voice analog signal sent by the first digital-to-analog converter 3014 to obtain a second voice analog signal, and send the second voice analog signal to the speaker 40 .

[0131] Specifically, the first power amplifier 3015 can be connected to the speaker 40 via a wire. For example, the first power amplifier 3015 is connected to the speaker 40 via a wire.

[0132] Specifically, the first power amplifier 3015 can be wirelessly connected to the speaker 40. For example, the first power amplifier 3015 is provided with a wireless transmission module, which can transmit the second voice analog signal to the speaker 40. The speaker 40 also has a corresponding built-in wireless receiving module, which can receive the second voice analog signal transmitted by the control unit 302.

[0133] In summary, the first analog-to-digital converter performs analog-to-digital conversion on the first voice analog signal sent by the microphone, and the analog-to-digital conversion converts the analog voice signal into a digital signal, thereby improving the accuracy and efficiency of signal processing; the first encoder function encodes the first digital signal sent by the first analog-to-digital converter, and encoding can compress data, increase data robustness, and improve signal transmission efficiency; the first power amplifier performs power amplification on the third voice analog signal sent by the first digital-to-analog converter, and power amplification increases the amplitude and energy of the analog signal, thereby improving the clarity of voice communication.

[0134] refer to Figure 6 , Figure 6 This is a schematic diagram of the structure of a handheld radio with a serial modulation function provided by another embodiment of the present invention. In this handheld radio with a serial modulation function, the signal processing unit 304 includes: a second encoder 3041, a second decoder 3042, an encapsulator 3043, a first filter 3044, a modulator 3045, a demodulator 3046, and a parser 3047.

[0135] Optionally, the second encoder 3041 can be an audio encoder, the second decoder 3042 can be an audio decoder, the encapsulator 3043 can be a chip-level encapsulator, the first filter 3044 can be a band-stop filter, the modulator 3045 can be an FM modulator, the demodulator 3046 can be an FM demodulator, and the parser 3047 can be a chip-level parser.

[0136] The second encoder 3041 is electrically connected to the control unit 302 and the encapsulator 3043 respectively. The control unit 302 is used to send the first speech coding signal sent by the vocoder 301 to the second encoder 3041. The second encoder 3041 is used to channel-code the first speech coding signal sent by the control unit 302 to obtain a first channel coding signal, and send the first channel coding signal to the encapsulator 3043.

[0137] Specifically, the second encoder 3041 may be connected to the control unit 302 and the encapsulator 3043 via a wired connection. For example, the second encoder 3041 may be connected to the control unit 302 and the encapsulator 3043 via a cable.

[0138] Specifically, the second encoder 3041 can be wirelessly connected to the control unit 302 and the encapsulator 3043. For example, the control unit 302 is provided with a wireless transmission module, which can transmit the first speech coding signal to the second encoder 3041. The second encoder 3041 also has a built-in corresponding wireless receiving module, which can receive the first speech coding signal transmitted by the control unit 302. The second encoder 3041 also has a built-in wireless transmission module, which can transmit the first channel coding signal to the encapsulator 3043. The encapsulator 3043 also has a built-in corresponding wireless receiving module, which can receive the first channel coding signal transmitted by the second encoder 3041.

[0139] The encapsulator 3043 is electrically connected to the first filter 3044 . The encapsulator 3043 is configured to encapsulate the first channel coded signal sent by the second encoder 3041 to obtain a first data packet, and send the first data packet to the first filter 3044 .

[0140] Specifically, the encapsulator 3043 may be connected to the first filter 3044 via a wire. For example, the encapsulator 3043 is connected to the first filter 3044 via a wire.

[0141] Specifically, the encapsulator 3043 can be wirelessly connected to the first filter 3044. For example, the encapsulator 3043 is provided with a wireless transmission module, which can send the first data packet to the first filter 3044. The first filter 3044 also has a built-in corresponding wireless receiving module, which can receive the first data packet sent by the encapsulator 3043.

[0142] The first filter 3044 is electrically connected to the modulator 3045 . The first filter 3044 is configured to filter the first data packet sent by the encapsulator 3043 to obtain a second data packet, and send the second data packet to the modulator 3045 .

[0143] Specifically, the first filter 3044 may be connected to the modulator 3045 via a wire. For example, the first filter 3044 is connected to the modulator 3045 via a wire.

[0144] Specifically, the first filter 3044 can be wirelessly connected to the modulator 3045. For example, the first filter 3044 is provided with a wireless transmission module, which can send the second data packet to the modulator 3045. The modulator 3045 also has a corresponding built-in wireless receiving module, which can receive the second data packet sent by the first filter 3044.

[0145] The modulator 3045 is electrically connected to the control unit 302 . The modulator 3045 is configured to modulate the second data packet sent by the first filter 3044 to obtain a first modulated voice signal, and send the first modulated voice signal to the control unit 302 .

[0146] Specifically, the modulator 3045 may be connected to the control unit 302 via a wire. For example, the modulator 3045 may be connected to the control unit 302 via a wire.

[0147] Specifically, the modulator 3045 can be wirelessly connected to the control unit 302. For example, the modulator 3045 is provided with a wireless transmission module, which can transmit the first modulated voice signal to the control unit 302. The control unit 302 also has a corresponding built-in wireless receiving module, which can receive the first modulated voice signal transmitted by the modulator 3045.

[0148] The demodulator 3046 is electrically connected to the control unit 302 and the parser 3047 respectively. The control unit 302 is used to send the second modulated voice signal sent by the RF unit 303 to the demodulator 3046. The demodulator 3046 is used to demodulate the second modulated voice signal sent by the control unit 302 to obtain a third data packet, and send the third data packet to the parser 3047.

[0149] Specifically, the demodulator 3046 can be connected to the control unit 302 and the parser 3047 via wires. For example, the demodulator 3046 can be connected to the control unit 302 and the parser 3047 via cables.

[0150] Specifically, the demodulator 3046 can be wirelessly connected to the control unit 302 and the parser 3047. For example, the control unit 302 is provided with a wireless transmission module, which can transmit the second modulated voice signal to the demodulator 3046. The demodulator 3046 also has a built-in corresponding wireless receiving module, which can receive the second modulated voice signal transmitted by the control unit 302. The demodulator 3046 also has a built-in wireless transmission module, which can transmit the third data packet to the parser 3047. The parser 3047 also has a built-in corresponding wireless receiving module, which can receive the third data packet transmitted by the demodulator 3046.

[0151] The parser 3047 is electrically connected to the second decoder 3042 . The parser 3047 is configured to parse the third data packet sent by the demodulator 3046 to obtain a second channel coded signal, and send the second channel coded signal to the second decoder 3042 .

[0152] Specifically, the parser 3047 may be connected to the second decoder 3042 via a wire. For example, the parser 3047 may be connected to the second decoder 3042 via a wire.

[0153] Specifically, the parser 3047 can be wirelessly connected to the second decoder 3042. For example, the parser 3047 is provided with a wireless transmission module, which can transmit the second channel coded signal to the second decoder 3042. The second decoder 3042 also has a corresponding built-in wireless receiving module, which can receive the second channel coded signal transmitted by the parser 3047.

[0154] The second decoder 3042 is electrically connected to the control unit 302 . The second decoder 3042 is configured to perform channel decoding on the second channel coded signal sent by the parser 3047 to obtain a second speech coded signal, and send the second speech coded signal to the control unit 302 .

[0155] Specifically, the second decoder 3042 may be connected to the control unit 302 via a wire. For example, the second decoder 3042 may be connected to the control unit 302 via a wire.

[0156] Specifically, the second decoder 3042 can be wirelessly connected to the control unit 302. For example, the second decoder 3042 is provided with a wireless transmission module, which can transmit the second speech coding signal to the control unit 302. The control unit 302 also has a corresponding built-in wireless receiving module, which can receive the second speech coding signal transmitted by the second decoder 3042.

[0157] In summary, the second encoder in the handheld radio performs channel coding on the first voice coding signal. Channel coding can enhance the signal's anti-interference ability and transmission reliability, thereby improving communication quality. The encapsulator packages the first channel coding signal. The packaging operation can ensure the integrity and consistency of the data during transmission and reduce data loss. The first filter filters the first data packet. The filtering operation can reduce the impact of noise on the voice signal, thereby ensuring the clarity and intelligibility of communication. The modulator modulates the second data packet. Modulation can convert the data packet into a radio frequency signal suitable for transmission in a wireless channel, thereby ensuring that the signal can be effectively transmitted in different communication environments.

[0158] refer to Figure 7 , Figure 7 This is a schematic diagram of the structure of a handheld radio with a modulation function provided by another embodiment of the present invention. In the handheld radio with a modulation function, the radio frequency unit 303 includes: a second power amplifier 3031, a second filter 3032, a second analog-to-digital converter 3033 and a digital frequency converter 3034.

[0159] Optionally, the second power amplifier 3031 may be an audio power amplifier, the second filter 3032 may be a band-stop filter, the second analog-to-digital converter 3033 may be a successive approximation analog-to-digital converter, and the digital frequency converter 3034 may be an indirect frequency converter.

[0160] The second power amplifier 3031 is electrically connected to the control unit 302 and the antenna 10 respectively. The control unit 302 is used to send the first modulated voice signal sent by the signal processing unit 304 to the second power amplifier 3031. The second power amplifier 3031 is used to power amplify the first modulated voice signal sent by the control unit 302 to obtain a first RF signal, and send the first RF signal to the antenna 10.

[0161] Specifically, the second power amplifier 3031 may be connected to the control unit 302 and the antenna 10 via wires. For example, the second power amplifier 3031 may be electrically connected to the control unit 302 and the antenna 10 via cables.

[0162] Specifically, the second power amplifier 3031 can be wirelessly connected to the control unit 302 and the antenna 10, respectively. For example, the control unit 302 is provided with a wireless transmission module, which can transmit the first modulated voice signal to the second power amplifier 3031. The second power amplifier 3031 also has a built-in corresponding wireless receiving module, which can receive the first modulated voice signal transmitted by the control unit 302. The second power amplifier 3031 also has a built-in wireless transmission module, which can transmit the first radio frequency signal to the antenna 10. The antenna 10 also has a built-in corresponding wireless receiving module, which can receive the first radio frequency signal transmitted by the second power amplifier 3031.

[0163] The second power amplifier 3031 is also electrically connected to the digital frequency converter 3034 . The second power amplifier 3031 is configured to amplify the power of the second radio frequency signal sent by the antenna 10 to obtain an amplified radio frequency signal, and send the amplified radio frequency signal to the digital frequency converter 3034 .

[0164] Specifically, the second power amplifier 3031 may be connected to the digital frequency converter 3034 via a wire. For example, the second power amplifier 3031 may be connected to the digital frequency converter 3034 via a cable.

[0165] Specifically, the second power amplifier 3031 can be wirelessly connected to the digital frequency converter 3034. For example, the second power amplifier 3031 is provided with a wireless transmission module, which can transmit the amplified RF signal to the digital frequency converter 3034. The digital frequency converter 3034 also has a corresponding built-in wireless receiving module, which can receive the amplified RF signal transmitted by the second power amplifier 3031.

[0166] The digital frequency converter 3034 is electrically connected to the second filter 3032 . The digital frequency converter 3034 is configured to perform frequency conversion on the amplified RF signal sent by the second power amplifier 3031 to obtain a frequency-converted signal, and send the frequency-converted signal to the second filter 3032 .

[0167] Specifically, the digital frequency converter 3034 may be connected to the second filter 3032 via a wire. For example, the digital frequency converter 3034 may be connected to the second filter 3032 via a cable.

[0168] Specifically, the digital frequency converter 3034 can be wirelessly connected to the second filter 3032. For example, the digital frequency converter 3034 is provided with a wireless transmission module, which can transmit the frequency conversion signal to the second filter 3032. The second filter 3032 also has a corresponding built-in wireless receiving module, which can receive the frequency conversion signal transmitted by the digital frequency converter 3034.

[0169] The second filter 3032 is electrically connected to the second analog-to-digital converter 3033 . The second filter 3032 is configured to filter the frequency conversion signal sent by the digital frequency converter 3034 to obtain a filtered signal, and send the filtered signal to the second analog-to-digital converter 3033 .

[0170] Specifically, the second filter 3032 may be connected to the second analog-to-digital converter 3033 via a wired connection. For example, the second filter 3032 may be connected to the second analog-to-digital converter 3033 via a cable.

[0171] Specifically, the second filter 3032 can be wirelessly connected to the second analog-to-digital converter 3033. For example, the second filter 3032 is provided with a wireless transmission module, which can transmit the filtered signal to the second analog-to-digital converter 3033. The second analog-to-digital converter 3033 also has a built-in corresponding wireless receiving module, which can receive the filtered signal transmitted by the second filter 3032.

[0172] The second analog-to-digital converter 3033 is electrically connected to the control unit 302 . The second analog-to-digital converter 3033 is used to perform analog-to-digital conversion on the filtered signal sent by the second filter 3032 to obtain a second modulated voice signal, and send the second modulated voice signal to the control unit 302 .

[0173] Specifically, the second analog-to-digital converter 3033 may be connected to the control unit 302 via a wire. For example, the second analog-to-digital converter 3033 may be connected to the control unit 302 via a cable.

[0174] Specifically, the second analog-to-digital converter 3033 can be wirelessly connected to the control unit 302. For example, the second analog-to-digital converter 3033 is provided with a wireless transmission module, which can transmit the second modulated voice signal to the control unit 302. The control unit 302 also has a corresponding built-in wireless receiving module, which can receive the second modulated voice signal transmitted by the second analog-to-digital converter 3033.

[0175] In summary, the use of the second power amplifier ensures sufficient power amplification for both transmitted and received RF signals, enhancing the stability and reliability of RF signals during transmission. The second filter filters the frequency-converted signal, effectively removing noise and improving signal accuracy. The second analog-to-digital converter converts the filtered signal from analog to digital, more accurately restoring the original voice signal and improving signal demodulation efficiency. The digital frequency converter converts the received RF signal into a frequency range suitable for subsequent processing, improving the signal's adaptability.

[0176] refer to Figure 8 , Figure 8 This is a structural diagram of a handheld radio with a modulation function provided by another embodiment of the present invention. In the handheld radio with a modulation function, the radio frequency unit 303 further includes: a signaling receiver 3035 and a signaling transmitter 3036.

[0177] Optionally, the signaling receiver 3035 may be a channel-associated signaling transmitter, and the signaling transmitter 3036 may be a channel-associated signaling receiver.

[0178] The signaling receiver 3035 is electrically connected to the control unit 302 , and is configured to send the signaling to the control unit 302 after receiving the signaling sent by the other stations.

[0179] Specifically, the signaling receiver 3035 may be connected to the control unit 302 via a wire. For example, the signaling receiver 3035 may be connected to the control unit 302 via a cable.

[0180] Specifically, the signaling receiver 3035 can be wirelessly connected to the control unit 302. For example, the signaling receiver 3035 is provided with a wireless transmission module, which can send signaling to the control unit 302. The control unit 302 also has a corresponding built-in wireless receiving module, which can receive the signaling sent by the signaling receiver 3035.

[0181] The signaling transmitter 3036 is electrically connected to the control unit 302 , and is configured to send the signaling to other stations after receiving the signaling sent by the control unit 302 .

[0182] Specifically, the signaling transmitter 3036 may be connected to the control unit 302 via a wire. For example, the signaling transmitter 3036 may be connected to the control unit 302 via a cable.

[0183] Specifically, the signaling transmitter 3036 can be wirelessly connected to the control unit 302. For example, the control unit 302 is provided with a wireless transmission module to send signaling to the signaling transmitter 3036. The signaling transmitter 3036 also has a corresponding wireless receiving module built in to receive the signaling sent by the control unit 302.

[0184] In summary, the addition of a signaling receiver and transmitter enables radios to quickly receive and send signaling. During communications, signaling carries critical control information, such as channel switching instructions and encryption keys. Using these receivers and transmitters allows radios to respond to these signals more quickly, improving communication efficiency and accuracy.

[0185] refer to Figure 9 , Figure 9 This is a structural diagram of a handheld radio with a modulation function provided by another embodiment of the present invention. In the handheld radio with a modulation function, a storage unit 305 is further provided on the main board 30 .

[0186] Optionally, the storage unit 305 may be a solid state drive.

[0187] The storage unit 305 is electrically connected to the control unit 302 , and is configured to store signaling when the control unit 302 sends signaling to the signaling transmitter 3036 , and when the control unit 302 receives signaling sent by the signaling receiver 3035 .

[0188] Specifically, the storage unit 305 may be connected to the control unit 302 via a wire. For example, the storage unit 305 may be connected to the control unit 302 via a cable.

[0189] Specifically, the storage unit 305 can be wirelessly connected to the control unit 302. For example, the control unit 302 is provided with a wireless transmission module to send signaling to the storage unit 305, and the storage unit 305 is also provided with a corresponding wireless receiving module to receive the signaling sent by the control unit 302.

[0190] In summary, the storage unit stores sent and received signaling, allowing users to review it when needed. If a radio malfunctions, the stored signaling can be used for troubleshooting and diagnosis. By analyzing this signaling, the cause of the problem can be determined and appropriate remedial measures can be taken.

[0191] refer to Figure 10 , Figure 10 This is a structural diagram of a handheld radio with a modulation function provided by another embodiment of the present invention. In the handheld radio with a modulation function, the handheld radio is further provided with a registration unit 100.

[0192] Optionally, the registration unit 100 may be a communication module. The radio station communicates with the digital modulation system through the communication module, and performs a registration operation after the communication module receives a power-on signal sent by the control unit in the radio station.

[0193] The registration unit 100 is electrically connected to the control unit 302 . The registration unit 100 is used to register the handheld radio with the digital modulation system where the handheld radio is located after receiving a power-on signal sent by the control unit 302 .

[0194] Specifically, the registration unit 100 may be connected to the control unit 302 via a wire. For example, the registration unit 100 may be connected to the control unit 302 via a cable.

[0195] Specifically, the registration unit 100 can be wirelessly connected to the control unit 302. For example, the control unit 302 has a built-in wireless transmission module that can send a power-on signal to the registration unit 100. The registration unit 100 also has a built-in corresponding wireless receiving module that can receive the power-on signal sent by the control unit 302.

[0196] In summary, the registration unit can ensure that only authorized handheld radios can access the digital modulation system, thereby enhancing the security of the system.

[0197] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0198] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0199] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0200] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A handheld radio with a serial modulation function, characterized in that: include: An antenna (10), a battery (20), a mainboard (30), a speaker (40) and a microphone (50), wherein the mainboard (30) is electrically connected to the antenna (10), the battery (20), the speaker (40) and the microphone (50), respectively, and the battery (20) is used to provide power to the handheld radio; The main board (30) is provided with: a vocoder (301), a control unit (302), a radio frequency unit (303) and a signal processing unit (304); the control unit (302) is electrically connected to the vocoder (301), the radio frequency unit (303) and the signal processing unit (304) respectively; The microphone (50) and the speaker (40) are both connected to the vocoder (301); the radio frequency unit (303) is electrically connected to the antenna (10); When the handheld radio is in a transmitting state, the microphone (50) is used to collect a first voice analog signal and send the first voice analog signal to the vocoder (301). The vocoder (301) is used to perform analog-to-digital conversion and encoding on the first voice analog signal to obtain a first voice coding signal, and send the first voice coding signal to the signal processing unit (304) through the control unit (302). The signal processing unit (304) is used to perform channel coding, packaging, filtering and modulation on the first voice coding signal to obtain a first modulated voice signal, and send the first modulated voice signal to the radio frequency unit (303) through the control unit (302). The radio frequency unit (303) is used to perform power amplification on the first modulated voice signal to obtain a first radio frequency signal, and send the first radio frequency signal to the antenna (10). The antenna (10) is used to send the first radio frequency signal to other radio stations. When the handheld radio is in a receiving state, the antenna (10) is used to receive a second radio frequency signal sent by other radio stations, and send the second radio frequency signal to the radio frequency unit (303). The radio frequency unit (303) is used to perform power amplification, digital frequency conversion, filtering and analog-to-digital conversion on the second radio frequency signal to obtain a second modulated voice signal, and send the second modulated voice signal to the signal processing unit (304) through the control unit (302). The signal processing unit (304) is used to demodulate, perform protocol analysis and channel decoding on the second modulated voice signal to obtain a second voice coding signal, and send the second voice coding signal to the vocoder (301) through the control unit (302). The vocoder (301) is used to decode and power amplify the second voice coding signal to obtain a second voice analog signal, and send the second voice analog signal to the speaker (40). The speaker (40) is used to play the second voice analog signal.

2. The handheld radio according to claim 1, wherein: The handheld radio is also provided with: a knob (60) and a button (70); The knob (60) is electrically connected to the control unit (302); the knob (60) is used to trigger a channel number signal and send the channel number signal to the control unit (302); the control unit (302) is used to adjust the number of channels for the antenna (10) to receive radio frequency signals based on the channel number signal; The button (70) is electrically connected to the control unit (302); the button (70) is used to trigger a collection state signal and send the collection state signal to the control unit (302); the control unit (302) is used to adjust whether the microphone (50) starts to collect the first voice analog signal or stops collecting the first voice analog signal based on the collection state signal.

3. The handheld radio according to claim 1, wherein: The handheld radio is further provided with: indicator lights (80), the indicator lights (80) including a first indicator light (801), a second indicator light (802), a third indicator light (803) and a fourth indicator light (804); The first indicator light (801) is electrically connected to the control unit (302), and the first indicator light (801) is used to indicate whether the handheld radio is turned on under the control of the control unit (302); The second indicator light (802) is electrically connected to the control unit (302), and the second indicator light (802) is used to indicate whether the antenna (10) is in a transmitting state or a receiving state under the control of the control unit (302); The third indicator light (803) is electrically connected to the control unit (302), and the third indicator light (803) is used to indicate the number of channels on which the antenna (10) receives radio frequency signals under the control of the control unit (302); The fourth indicator light (804) is electrically connected to the control unit (302), and the fourth indicator light (804) is used to indicate the power status of the battery (20) under the control of the control unit (302).

4. The handheld radio according to claim 1, wherein: The handheld radio is also provided with: an internal clock (90); The internal clock (90) and the speaker (40) are both electrically connected to the control unit (302). The internal clock (90) is used to record the current time and send the current time to the control unit (302). The control unit (302) is used to send the current time to the speaker (40). The speaker (40) is used to broadcast the current time.

5. The handheld radio according to claim 1, wherein: The vocoder (301) comprises: a first analog-to-digital converter (3011), a first encoder (3012), a first decoder (3013), a first digital-to-analog converter (3014) and a first power amplifier (3015); The first analog-to-digital converter (3011) is electrically connected to the microphone (50) and the first encoder (3012), respectively, and the first analog-to-digital converter (3011) is used to perform analog-to-digital conversion on the first voice analog signal sent by the microphone (50) to obtain a first digital signal, and send the first digital signal to the first encoder (3012); The first encoder (3012) is electrically connected to the control unit (302), and the first encoder (3012) is used to encode the first digital signal sent by the first analog-to-digital converter (3011) to obtain a first speech coding signal, and send the first speech coding signal to the control unit (302), and the control unit (302) is used to send the first speech coding signal to the signal processing unit (304); The first decoder (3013) is electrically connected to the control unit (302) and the first digital-to-analog converter (3014) respectively. The control unit (302) is used to send the second speech coding signal sent by the signal processing unit (304) to the first decoder (3013). The first decoder (3013) is used to decode the second speech coding signal sent by the control unit (302) to obtain a second digital signal, and send the second digital signal to the first digital-to-analog converter (3014). The first digital-to-analog converter (3014) is electrically connected to the first power amplifier (3015), and the first digital-to-analog converter (3014) is used to perform digital-to-analog conversion on the second digital signal sent by the first decoder (3013) to obtain a third voice analog signal, and send the third voice analog signal to the first power amplifier (3015); The first power amplifier (3015) is electrically connected to the speaker (40), and the first power amplifier (3015) is used to power-amplify the third voice analog signal sent by the first digital-to-analog converter (3014) to obtain the second voice analog signal, and send the second voice analog signal to the speaker (40).

6. The handheld radio according to claim 1, wherein: The signal processing unit (304) includes: a second encoder (3041), a second decoder (3042), a packager (3043), a first filter (3044), a modulator (3045), a demodulator (3046) and a parser (3047); The second encoder (3041) is electrically connected to the control unit (302) and the encapsulator (3043) respectively. The control unit (302) is used to send the first speech coded signal sent by the vocoder (301) to the second encoder (3041). The second encoder (3041) is used to perform channel coding on the first speech coded signal sent by the control unit (302) to obtain a first channel coded signal, and send the first channel coded signal to the encapsulator (3043). The encapsulator (3043) is electrically connected to the first filter (3044), and the encapsulator (3043) is used to encapsulate the first channel coded signal sent by the second encoder (3041) to obtain a first data packet, and send the first data packet to the first filter (3044); The first filter (3044) is electrically connected to the modulator (3045), and the first filter (3044) is used to filter the first data packet sent by the encapsulator (3043) to obtain a second data packet, and send the second data packet to the modulator (3045); The modulator (3045) is electrically connected to the control unit (302), and the modulator (3045) is used to modulate the second data packet sent by the first filter (3044) to obtain the first modulated voice signal, and send the first modulated voice signal to the control unit (302); The demodulator (3046) is electrically connected to the control unit (302) and the parser (3047) respectively. The control unit (302) is used to send the second modulated voice signal sent by the radio frequency unit (303) to the demodulator (3046). The demodulator (3046) is used to demodulate the second modulated voice signal sent by the control unit (302) to obtain a third data packet, and send the third data packet to the parser (3047). The parser (3047) is electrically connected to the second decoder (3042), and the parser (3047) is used to parse the third data packet sent by the demodulator (3046) to obtain a second channel coded signal, and send the second channel coded signal to the second decoder (3042); The second decoder (3042) is electrically connected to the control unit (302), and the second decoder (3042) is used to perform channel decoding on the second channel coded signal sent by the parser (3047) to obtain the second speech coded signal, and send the second speech coded signal to the control unit (302).

7. The handheld radio according to claim 1, wherein: The radio frequency unit (303) comprises: a second power amplifier (3031), a second filter (3032), a second analog-to-digital converter (3033) and a digital frequency converter (3034); The second power amplifier (3031) is electrically connected to the control unit (302) and the antenna (10) respectively. The control unit (302) is used to send the first modulated voice signal sent by the signal processing unit (304) to the second power amplifier (3031). The second power amplifier (3031) is used to power-amplify the first modulated voice signal sent by the control unit (302) to obtain the first radio frequency signal, and send the first radio frequency signal to the antenna (10). The second power amplifier (3031) is also electrically connected to the digital frequency converter (3034), and the second power amplifier (3031) is used to amplify the power of the second radio frequency signal sent by the antenna (10) to obtain an amplified radio frequency signal, and send the amplified radio frequency signal to the digital frequency converter (3034); The digital frequency converter (3034) is electrically connected to the second filter (3032), and the digital frequency converter (3034) is used to perform frequency conversion on the amplified radio frequency signal sent by the second power amplifier (3031) to obtain a frequency conversion signal, and send the frequency conversion signal to the second filter (3032); The second filter (3032) is electrically connected to the second analog-to-digital converter (3033), and the second filter (3032) is used to filter the frequency conversion signal sent by the digital frequency converter (3034) to obtain a filtered signal, and send the filtered signal to the second analog-to-digital converter (3033); The second analog-to-digital converter (3033) is electrically connected to the control unit (302), and the second analog-to-digital converter (3033) is used to perform analog-to-digital conversion on the filtered signal sent by the second filter (3032) to obtain the second modulated voice signal, and send the second modulated voice signal to the control unit (302).

8. The handheld radio according to any one of claims 1 to 7, characterized in that: The radio frequency unit (303) further includes: a signaling receiver (3035) and a signaling transmitter (3036); The signaling receiver (3035) is electrically connected to the control unit (302), and the signaling receiver (3035) is used to send the signaling to the control unit (302) after receiving the signaling sent by the remaining stations; The signaling transmitter (3036) is electrically connected to the control unit (302), and the signaling transmitter (3036) is used to send the signaling to other stations after receiving the signaling sent by the control unit (302).

9. The handheld radio according to claim 8, characterized in that: The main board (30) is further provided with: a storage unit (305); The storage unit (305) is electrically connected to the control unit (302), and the storage unit (305) is used to store the signaling when the control unit (302) sends the signaling to the signaling transmitter (3036) and when the control unit (302) receives the signaling sent by the signaling receiver (3035).

10. The handheld radio according to claim 1, wherein: The handheld radio is further provided with: a registration unit (100); The registration unit (100) is electrically connected to the control unit (302), and the registration unit (100) is used to register the handheld radio with the digital modulation system where the handheld radio is located after receiving a power-on signal sent by the control unit (302).

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