CN212064264U - Voice communication system with encryption and decryption functions - Google Patents
Voice communication system with encryption and decryption functions Download PDFInfo
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- CN212064264U CN212064264U CN202020643137.XU CN202020643137U CN212064264U CN 212064264 U CN212064264 U CN 212064264U CN 202020643137 U CN202020643137 U CN 202020643137U CN 212064264 U CN212064264 U CN 212064264U
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Abstract
The utility model discloses a voice communication system of deciphering is encrypted in area relates to voice communication technical field, including communications facilities, backstage system, talkback terminal and encryption decryption system, backstage system includes relay recording gateway and high in the clouds control module, and encryption decryption system includes pronunciation collection system, signal amplifier, audio codec and processing unit, and processing unit includes the encryption chip, set up encryption key and decryption key in the encryption chip simultaneously. The voice information is transmitted and played after being recorded by the relay recording gateway, so that the real-time intercommunication of the mobile phone, the fixed telephone and the interphone is simply and feasibly realized, and the long-distance real-time communication of multiple persons is realized; the encryption and decryption systems are arranged on the communication equipment and the talkback terminal to encrypt the voice signals, and in the network transmission process, the transmitted voice information exists in a ciphertext form, so that the voice is decrypted by the decryption system after reaching a voice receiving end, and the safety of voice communication is improved.
Description
Technical Field
The utility model relates to a voice communication technical field, concretely relates to voice communication system of deciphering is encrypted in area.
Background
Mobile phones and fixed telephones are common methods for people to transmit voice information in a long distance in daily life, interphones are common methods for voice information transmission in a short distance by multiple people, and voice information transmission in a long distance by multiple people is urgently needed in various industries such as police dispatch, railway dispatch, electric tower maintenance dispatch, water and gas pipeline maintenance dispatch and the like. In addition, as the demand of communication traffic increases, the requirement for security and confidentiality of transmission of voice data is required, and the security and confidentiality of transmission of mobile communication is more and more important. The existing voice communication system has no confidentiality, and the safety of user communication cannot be guaranteed.
Disclosure of Invention
In order to solve the prior art problem, the utility model transmits and plays the voice information after recording through the relay recording gateway, simply and feasibly realizes the real-time intercommunication of the mobile phone, the fixed telephone and the interphone, and realizes the long-distance real-time communication of a plurality of people; the encryption and decryption systems are arranged on the communication equipment and the talkback terminal to encrypt the voice signals, and in the network transmission process, the transmitted voice information exists in a ciphertext form, so that the voice is decrypted by the decryption system after reaching a voice receiving end, and the safety of voice communication is improved.
The utility model discloses specifically adopt following technical scheme:
a voice communication system with encryption and decryption comprises communication equipment, a background system, an intercom terminal and an encryption and decryption system, wherein the background system comprises a relay recording gateway and a cloud control module electrically connected with the relay recording gateway, and the cloud control module comprises an intercom exchange server; the intercom terminal comprises a plurality of interphones 3; the communication equipment is electrically connected with the relay recording gateway, and the talkback exchange server is electrically connected with the talkback terminal; the encryption and decryption systems are arranged between the communication equipment and the background system and between the talkback terminal and the cloud control module;
the encryption and decryption system comprises a voice acquisition device, a signal amplifier, an audio codec and a processing unit, wherein the voice acquisition device between the communication equipment and the background system is connected with the communication equipment; between the intercom terminal and the cloud control module
The voice acquisition device is connected with the talkback terminal; the voice acquisition device, the signal amplifier, the audio codec and the processing unit are sequentially connected, the processing unit comprises an encryption chip, and an encryption key and a decryption key are simultaneously arranged in the encryption chip.
The communication equipment is a fixed telephone or a mobile phone.
The relay recording gateway and the cloud control module as well as the cloud control module and the talkback terminal are connected through network modules, and the network modules are WIFI or 4G or 5G networks.
The encryption and decryption system further comprises a crystal oscillator circuit, a reset circuit and a filter circuit, wherein the crystal oscillator circuit, the reset circuit and the filter circuit are respectively and electrically connected with the processing unit.
The encryption and decryption system further comprises a rechargeable battery and a charge and discharge protection circuit electrically connected with the rechargeable battery, wherein the charge and discharge protection circuit comprises a charge and discharge control chip and a peripheral circuit of the chip, and the charge and discharge control chip is connected with the peripheral circuit.
The utility model has the advantages that:
the voice information is transmitted and played after being recorded by the relay recording gateway, so that the real-time intercommunication of the mobile phone, the fixed telephone and the interphone is simply and feasibly realized, and the long-distance real-time communication of multiple persons is realized;
the encryption and decryption systems are arranged on the communication equipment and the talkback terminal to encrypt the voice signals, and in the network transmission process, the transmitted voice information exists in a ciphertext form, so that the voice is decrypted by the decryption system after reaching a voice receiving end, and the safety of voice communication is improved;
the encryption and decryption system device can be independent of communication equipment or an intercom terminal, does not have special requirements on the communication equipment or the intercom terminal, can also be arranged in the communication equipment or the intercom terminal, and is convenient to use;
the processor is adopted to encrypt and decrypt signals, and the influence of voice compression coding in a secret communication system can be effectively resisted. The encryption effect is good, the decryption voice recovery degree is high, and the call delay is small.
Drawings
Fig. 1 is a schematic structural diagram of a voice communication system with encryption and decryption according to an embodiment of the present invention;
the attached drawings are marked as follows: 1-a communication device; 20-relay recording gateway; 21-a cloud control module; 3-interphone.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1, an embodiment of the utility model discloses a voice communication system with encryption and decryption, including communications facilities 1, backstage system, talkback terminal and encryption and decryption system, the backstage system includes relay recording gateway 20 and the cloud control module 21 that is connected with relay recording gateway 20 electricity, and cloud control module 21 includes talkback exchange server; the intercom terminal comprises a plurality of interphones 3; the communication equipment 1 is electrically connected with the relay recording gateway 20, and the talkback exchange server is electrically connected with the talkback terminal; encryption and decryption systems are arranged between the communication equipment 1 and the background system and between the talkback terminal and the cloud control module 21; the encryption and decryption system comprises a voice acquisition device, a signal amplifier, an audio codec and a processing unit, wherein the voice acquisition device between the communication equipment 1 and the background system is connected with the communication equipment; the voice acquisition device positioned between the talkback terminal and the cloud control module 21 is connected with the talkback terminal; the voice acquisition device, the signal amplifier, the audio codec and the processing unit are sequentially connected, the processing unit comprises an encryption chip, and an encryption key and a decryption key are simultaneously arranged in the encryption chip.
When a user needs to perform voice communication with a person at the talkback terminal through the communication equipment, the user inputs voice through the communication equipment, the voice acquisition device acquires input voice data, the acquired voice data is transmitted to the signal amplifier for signal preprocessing, the preprocessed data is transmitted to the audio codec to convert voice analog signals into voice digital signals, the voice numerical signals are transmitted to the encryption chip of the processing unit, encryption processing is performed through the encryption key to obtain ciphertext voice data, and the ciphertext voice data is transmitted to the audio codec to convert the ciphertext voice data into ciphertext voice analog signals and then transmitted to the relay recording gateway; the relay recording gateway records the received ciphertext voice analog signal and then sends the recording information to the cloud control module; the cloud control module is used for receiving the recording information, sending the recording information to a signal amplifier between the talkback terminal and the cloud control module through the talkback exchange server to perform signal preprocessing, transmitting the preprocessed data to the audio codec to convert ciphertext voice analog signals into ciphertext voice digital signals, transmitting the ciphertext voice digital signals to a decryption key in the same set of encryption chips of the processor to perform decryption processing to obtain plaintext voice digital signals, transmitting the plaintext voice digital signals to the audio codec to convert the plaintext voice digital data into plaintext voice analog signals, and then transmitting the plaintext voice analog signals to speakers of a plurality of interphones of the talkback terminal to perform voice playing.
Similarly, when a person at the intercom terminal receives voice and needs to communicate with a person at the communication equipment end through the intercom terminal, after the user inputs voice through the intercom terminal, the voice acquisition device acquires the input voice data, the acquired voice data is transmitted to the signal amplifier for signal preprocessing, the preprocessed data is transmitted to the audio codec for converting the voice analog signal into a voice digital signal, the voice digital signal is transmitted to the encryption chip of the processing unit, the encryption processing is carried out through the encryption key for obtaining ciphertext voice data, the ciphertext voice data is transmitted to the audio codec for converting the ciphertext voice data into a ciphertext voice analog signal and then transmitted to the cloud control module, the cloud control module receives the ciphertext voice analog signal through the intercom switching server and transmits the ciphertext voice analog signal to the relay recording gateway, the relay recording gateway receives and records the ciphertext voice analog signal, transmits the recording information to the signal amplifier for signal preprocessing, transmits the preprocessed data to the audio codec to convert the ciphertext voice analog signal into a ciphertext voice digital signal, transmits the ciphertext voice numerical signal to a decryption key in the same set of encryption chips of the processor for decryption to obtain a plaintext voice digital signal, and transmits the plaintext voice digital signal to the audio codec to convert the plaintext voice digital data into a plaintext voice analog signal, and then transmits the plaintext voice analog signal to a loudspeaker of the communication equipment for voice playing. The real-time intercommunication between the communication equipment and the interphone is simply and feasibly realized, and the long-distance real-time encryption communication of multiple persons is realized.
In this embodiment, the process of the encryption chip in the processing unit performing encryption and decryption is as follows: in the encryption process, the collected voice signals are subjected to STFT (short time Fourier transform) transformation to be converted into frequency domain signals, the transformed frequency domain signals are subjected to spectrum inversion through a set encryption key, frequency domain scrambling is realized, spectrum correction is carried out on the signals subjected to the scrambling processing to obtain encrypted voice signals, and the damage of a transmission channel to the encrypted voice can be compensated by carrying out spectrum correction on the signals subjected to the scrambling processing. In the decryption process, the encrypted voice signal is subjected to inverse scrambling through the decryption key, the voice signal obtained after the inverse scrambling is subjected to spectrum correction to obtain decrypted voice, and then the decrypted voice signal is subjected to inverse discrete Fourier transform to be converted into a time domain signal. And converted to analog voice signals by D/a through an audio codec.
In this embodiment, the communication device 1 is a fixed telephone or a mobile phone.
In this embodiment, the relay recording gateway 20 is connected to the cloud control module, the cloud control module 21 is connected to the intercom terminal through a network module, and the network module is a WIFI network, a 4G network or a 5G network.
In this embodiment, the encryption and decryption system further includes a crystal oscillator circuit, a reset circuit, and a filter circuit, and the crystal oscillator circuit, the reset circuit, and the filter circuit are electrically connected to the processing unit, respectively. The chip of the processing unit is monitored and conditioned, so that the stable operation of the encryption and decryption system is ensured, and the crystal oscillator circuit, the reset circuit and the filter circuit are conventional circuits.
In this embodiment, the encryption and decryption system further includes a rechargeable battery and a charge and discharge protection circuit electrically connected to the rechargeable battery, where the charge and discharge protection circuit includes a charge and discharge control chip and a peripheral circuit of the chip, and the charge and discharge control chip is connected to the peripheral circuit. The charging and discharging protection circuit is used for ensuring the working stability of the encryption and decryption system, ensuring stable current and voltage in the encryption and decryption working process and having very low power consumption in working.
Finally, only the specific embodiments of the present invention have been described in detail. The invention is not limited to the specific embodiments described above. Equivalent modifications and substitutions by those skilled in the art to the present invention are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (5)
1. A voice communication system with encryption and decryption, characterized in that:
the system comprises communication equipment (1), a background system, an intercom terminal and an encryption and decryption system, wherein the background system comprises a relay recording gateway (20) and a cloud control module (21) electrically connected with the relay recording gateway (20), and the cloud control module (21) comprises an intercom exchange server; the intercom terminal comprises a plurality of interphones (3); the communication equipment (1) is electrically connected with the relay recording gateway (20), and the talkback exchange server is electrically connected with the talkback terminal; the encryption and decryption systems are arranged between the communication equipment (1) and the background system and between the talkback terminal and the cloud control module (21);
the encryption and decryption system comprises a voice acquisition device, a signal amplifier, an audio codec and a processing unit, wherein the voice acquisition device between the communication equipment (1) and the background system is connected with the communication equipment; the voice acquisition device positioned between the talkback terminal and the cloud control module (21) is connected with the talkback terminal; the voice acquisition device, the signal amplifier, the audio codec and the processing unit are sequentially connected, the processing unit comprises an encryption chip, and an encryption key and a decryption key are simultaneously arranged in the encryption chip.
2. The voice communication system with encryption and decryption according to claim 1, wherein:
the communication equipment (1) is a fixed telephone or a mobile phone.
3. The voice communication system with encryption and decryption according to claim 1, wherein:
the relay recording gateway (20) is connected with the cloud control module, the cloud control module (21) is connected with the talkback terminal through network modules, and the network modules are WIFI or 4G networks or 5G networks.
4. The voice communication system with encryption and decryption according to claim 1, wherein:
the encryption and decryption system further comprises a crystal oscillator circuit, a reset circuit and a filter circuit, wherein the crystal oscillator circuit, the reset circuit and the filter circuit are respectively and electrically connected with the processing unit.
5. The voice communication system with encryption and decryption according to claim 1, wherein:
the encryption and decryption system further comprises a rechargeable battery and a charge and discharge protection circuit electrically connected with the rechargeable battery, wherein the charge and discharge protection circuit comprises a charge and discharge control chip and a peripheral circuit of the chip, and the charge and discharge control chip is connected with the peripheral circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020643137.XU CN212064264U (en) | 2020-04-24 | 2020-04-24 | Voice communication system with encryption and decryption functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020643137.XU CN212064264U (en) | 2020-04-24 | 2020-04-24 | Voice communication system with encryption and decryption functions |
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| CN212064264U true CN212064264U (en) | 2020-12-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954673A (en) * | 2021-02-03 | 2021-06-11 | 深圳市长丰影像器材有限公司 | Encryption method for wireless microphone channel |
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2020
- 2020-04-24 CN CN202020643137.XU patent/CN212064264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954673A (en) * | 2021-02-03 | 2021-06-11 | 深圳市长丰影像器材有限公司 | Encryption method for wireless microphone channel |
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