CN112367435A - Emergency recording function implementation system and method based on built-in backup module - Google Patents
Emergency recording function implementation system and method based on built-in backup module Download PDFInfo
- Publication number
- CN112367435A CN112367435A CN202011143441.9A CN202011143441A CN112367435A CN 112367435 A CN112367435 A CN 112367435A CN 202011143441 A CN202011143441 A CN 202011143441A CN 112367435 A CN112367435 A CN 112367435A
- Authority
- CN
- China
- Prior art keywords
- recording
- telephone
- electrically connected
- circuit
- emergency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42221—Conversation recording systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Abstract
A system and a method for realizing an emergency recording function based on a built-in backup module comprise a recording server and an emergency recording module, wherein the recording server and the emergency recording module are in protocol communication with each other through a network interface; the recording server is used for receiving a recording request and carrying out recording work based on the recording request when the recording server works normally; the emergency recording module is used for recording when the recording server is abnormal in recording work or is powered off and the like and cannot provide recording service, and transmitting the recording data to the recording server for storage when the recording server is recovered to be normal. The emergency recording module is expanded, when the emergency recording module normally works, the recording server performs recording work based on the recording request and stores the recording data, once the recording work of the recording server is abnormal, the emergency recording module is switched to perform recording and stores the recording data, and the emergency recording module is provided with an independent backup battery, so that the problem of emergency recording under the condition of sudden power failure is solved, and the reliability of a telephone recording system is improved.
Description
Technical Field
The invention relates to the field of communication, in particular to an emergency recording function implementation system based on a built-in backup module.
Background
The existing recording server can only carry out normal recording, once the equipment is abnormal, the call recording is finished, so that important information, such as an emergency or a major alarm, is missed, therefore, a recording system which can be used for emergency recording needs to be developed aiming at the existing telephone recording system, and even if the equipment is abnormal, the normal recording function can be ensured, and the reliability of the recording system is improved.
Disclosure of Invention
In view of the technical defects and technical drawbacks in the prior art, embodiments of the present invention provide a system and a method for implementing an emergency recording function based on a built-in backup module, which overcome the above problems or at least partially solve the above problems, and the specific scheme is as follows:
as a first aspect of the present invention, a system for implementing an emergency recording function based on a built-in backup module is provided, which includes a recording server and an emergency recording module, where the recording server and the emergency recording module perform protocol communication with each other through a network interface;
the recording server is used for receiving a recording request when the recording server works normally, performing recording work based on the recording request and storing recording data;
the emergency recording module is used for recording and storing recording data when the recording server is abnormal in recording work or is powered off and the like and cannot provide recording service, and transmitting the recording data to the recording server for storage when the recording server is recovered to be normal.
Furthermore, the recording server comprises an industrial control host, a recording card for recording and a touch control screen for human-computer interaction, wherein the recording card and the touch control screen are electrically connected with the industrial control host.
Furthermore, the emergency recording module comprises an interface board, an analog telephone signal processing board, a main control board and a backup battery, wherein the interface board and the analog telephone signal processing board are electrically connected with the main control board; the main control board is connected with the recording server through an interface board, and the backup battery is respectively electrically connected with the interface board, the analog telephone signal processing board and the main control board and used for providing working voltage for the interface board, the analog telephone signal processing board and the main control board and solving the problem of emergency recording under the condition of sudden power failure.
The main control board is used for starting the analog telephone signal processing board to record and store the recording data when the recording server is abnormal in recording work or is powered off and the like and cannot provide recording service, and the main control board transmits the recording data to the recording server through the interface board to be stored when the recording server is recovered to be normal.
Furthermore, the analog telephone signal processing board comprises a telephone audio signal processing circuit, a line voltage measuring circuit, an online state judging circuit, an FSK telephone number signal processing circuit and a microprocessor, wherein the telephone audio signal processing circuit, the line voltage measuring circuit and the online state judging circuit are all electrically connected with the microprocessor, the FSK telephone number signal processing circuit is electrically connected with the telephone audio signal processing circuit, and the microprocessor is electrically connected with the main control board;
the telephone audio signal processing circuit is used for carrying out PCM coding on a telephone analog audio signal and outputting a digital signal to the microprocessor;
the line voltage measuring circuit is used for measuring the voltage of the telephone line and feeding back the voltage to the microprocessor;
the online state judging circuit is used for detecting whether a telephone is online or not and feeding back the telephone to the microprocessor;
the FSK telephone number signal processing circuit is used for processing an FSK system incoming call number signal, converting the FSK signal into a serial port signal and outputting the serial port signal to the telephone audio signal processing circuit.
Further, the line voltage measuring circuit comprises an MB6S rectifier bridge, a PC817 photoelectric coupler, a capacitor C49, a resistor R40 and a resistor R41; two input ends of the MB6S rectifier bridge are respectively and electrically connected with a positive/negative wire of a telephone wire, a positive output end of the MB6S rectifier bridge is electrically connected with a positive input end of a PC817 photoelectric coupler through a resistor R41, and a negative output end is directly and electrically connected with a negative input end of the PC817 photoelectric coupler; a capacitor C49 is also electrically connected between the positive output end and the negative output end of the MB6S rectifier bridge; the output end of the PC817 photoelectric coupler is electrically connected with the microprocessor and is also connected with +3.3V voltage through a resistor R40.
Furthermore, the online state judging circuit comprises an HCPL-073A chip, a 2DA pin of the HCPL-073A chip is electrically connected with an anode output end of an MB6S rectifier bridge through a resistor R75, a 2DK pin is electrically connected with a cathode output end of the MB6S rectifier bridge, a VCC pin is connected with 3.3V voltage, and a VO2 pin is electrically connected with the microcontroller.
Further, the FSK telephone number signal processing circuit comprises an HT9032D chip, a resistor R42, a resistor R44, a resistor R46, a capacitor C42, a capacitor C47, a capacitor C50, a capacitor C52, a capacitor C53, a capacitor C55 and a crystal oscillator Y2; the DOUT pin of the HT9032D chip is used for accessing an incoming call number signal of an FSK system; the TIP pin of the HT9032D chip is electrically connected with the telephone audio signal processing circuit sequentially through a resistor R42 and a capacitor C47, the RING pin is grounded sequentially through a resistor 44 and a capacitor C50, the PDWN pin is connected with +5V voltage through a capacitor C53 and is grounded through a resistor R46, the VDD pin is connected with +5V voltage and is grounded through a capacitor C45, the X1 pin is grounded through a capacitor C52, the X2 pin is grounded through a capacitor C55, and a crystal oscillator Y2 is electrically connected between the X1 pin and the X2 pin.
Furthermore, the telephone audio signal processing circuit comprises an isolation circuit for carrying out audio isolation on the telephone analog audio signal, an overvoltage protection circuit for carrying out overvoltage protection and a voice coding and decoding circuit for carrying out PCM coding on the telephone analog audio signal, wherein the isolation circuit, the overvoltage protection circuit and the voice coding and decoding circuit are electrically connected in sequence, the input end of the isolation circuit is used for accessing the telephone analog audio signal, and the output end of the voice coding and decoding circuit is electrically connected to the microprocessor.
Further, the isolation circuit comprises an audio isolation transformer T4, and the overvoltage protection circuit comprises a TVS diode; the homonymous input end of the audio isolation transformer T4 is electrically connected with the positive line of the telephone line through a capacitor C20, the synonym input end is electrically connected with the negative line of the telephone line through a resistor R14, two ends of the TVS diode are respectively electrically connected with the homonymous output end and the synonym output end of the audio isolation transformer T4, and a capacitor C27 is electrically connected between the homonymous output end and the synonym output end of the audio isolation transformer T4; the homonymous output end of the audio isolation transformer T4 is also electrically connected with the voice coding and decoding circuit through a resistor R10, and the synonym output end is also grounded.
Furthermore, the voice coding and decoding circuit comprises a TP3057 chip and peripheral circuits thereof, a VFX-pin of the TP3057 chip is electrically connected with the overvoltage protection circuit through a resistor R10, and a DX pin of the TP3057 chip is electrically connected with the microprocessor.
As another aspect of the present invention, a method for implementing an emergency recording function based on a built-in backup module is provided, where the method includes:
when the recording server works normally, the recording server receives a recording request, performs recording work based on the recording request and stores recording data;
when the recording server cannot provide recording service under the condition of abnormal recording work or power failure, the emergency recording module is switched to record and store the recording data, and the recording data is transmitted to the recording server to be stored when the recording server recovers to be normal.
The invention has the following beneficial effects:
the system of the invention expands the emergency recording module on the basis of the recording server of the traditional recording system, when the system works normally, the recording server performs recording work and stores recording data based on the recording request, once the recording work of the recording server is abnormal, the emergency recording module is switched to perform recording and stores the recording data, the emergency recording module is provided with an independent backup battery and an analog telephone signal processing board, the system can perform independent emergency recording work, and when the recording server recovers to be normal, the recording data is transmitted to the recording server to be stored, thereby improving the reliability of the telephone recording system.
Drawings
Fig. 1 is a system framework diagram of a telephone recording system according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of an interface board according to an embodiment of the present invention;
FIG. 3 is a block diagram of an analog telephone signal processing board provided by an embodiment of the present invention;
FIG. 4 is a circuit diagram of a line voltage measurement circuit according to an embodiment of the present invention;
FIG. 5 is a circuit diagram of an online status determining circuit according to an embodiment of the present invention;
fig. 6 is a circuit diagram of an FSK telephone number signal processing circuit according to an embodiment of the present invention;
fig. 7 is a circuit diagram of an analog telephone signal processing board according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, as a first embodiment of the present invention, a system for implementing an emergency recording function based on a built-in backup module is provided, which includes a recording server and an emergency recording module, where the recording server and the emergency recording module perform protocol communication with each other through a network interface;
the recording server is used for receiving a recording request when the recording server works normally, performing recording work based on the recording request and storing recording data;
the emergency recording module is used for recording and storing recording data when the recording server is abnormal in recording work or is powered off and the like and cannot provide recording service, and transmitting the recording data to the recording server for storage when the recording server is recovered to be normal.
The recording server comprises an industrial control host, a recording card and a touch control screen, wherein the recording card is used for recording, the touch control screen is used for human-computer interaction, and the recording card and the touch control screen are both electrically connected with the industrial control host and used for normal recording.
The emergency recording module comprises an interface board, an analog telephone signal processing board, a main control board, an ARM core processing board and a backup battery, wherein the interface board, the analog telephone signal processing board and the ARM core processing board are all electrically connected with the main control board; the main control board is connected with the recording server through an interface board, and the backup battery is respectively electrically connected with the interface board, the analog telephone signal processing board, the ARM core processing board and the main control board and used for providing working voltage for the interface board, the analog telephone signal processing board, the ARM core processing board and the main control board so as to solve the problem of emergency recording under the condition of sudden power failure, wherein the backup battery can select a rechargeable battery, a charging interface of the rechargeable battery is connected with a standard power supply of a telephone recording system, and the rechargeable battery is charged through the standard power supply under the normal condition; the main control board is used for starting the analog telephone signal processing board to record and store the recording data when the recording server works abnormally or requests emergency recording, and transmitting the recording data to the recording server for storage through the interface board when the recording server returns to be normal.
The circuit diagram of the interface board is shown in fig. 2, the emergency recording module communicates with the recording server by using a USB-to-network communication mode, which has the following advantages: the wiring can be carried out in the host, and an external network interface of the host is not occupied; compared with the traditional serial port communication, the USB network communication is more rapid and convenient to exchange data information; the interface board comprises a mainboard reset control interface, and under the condition of protocol communication disconnection with the recording server, the abnormal fault of the recording server software can be effectively repaired by regularly resetting a reset switch of the recording server mainboard.
In addition, emergent recording module is still including the display screen that is used for saving the storage card of emergent recording data and is used for showing emergent recording module state, ARM core processing board includes network communication module, WEB server, NTP time synchronization module and acoustic control/voltage-controlled recording storage module, the main control board includes power management module, backup battery provides required operating voltage for other modules through the power management module on the main control board.
The system of the invention expands the emergency recording module on the basis of the recording server, when the system works normally, the recording server carries out recording work and stores recording data based on a recording request, and once the recording work of the recording server is abnormal, the emergency recording module is switched to carry out recording and stores the recording data, the emergency recording module is provided with an independent backup battery and an analog telephone signal processing board for carrying out the emergency recording work, the independent emergency recording work can be carried out, and the recording data is transmitted to the recording server for storing when the recording server is recovered to be normal, thereby improving the reliability of the telephone recording system.
Preferably, as shown in fig. 3, the analog telephone signal processing board includes a telephone audio signal processing circuit, a line voltage measuring circuit, an online state judging circuit, an FSK telephone number signal processing circuit and a microprocessor, the telephone audio signal processing circuit, the line voltage measuring circuit and the online state judging circuit are all electrically connected to the microprocessor, the FSK telephone number signal processing circuit is electrically connected to the telephone audio signal processing circuit, and the telephone audio signal processing circuit is configured to perform PCM coding on a telephone analog audio signal and output a digital signal to the microprocessor; the line voltage measuring circuit is used for measuring the voltage of the telephone line and feeding back the voltage to the microprocessor; the online state judging circuit is used for detecting whether a telephone is online or not and feeding back the telephone to the microprocessor; the FSK telephone number signal processing circuit is used for processing an FSK system incoming call number signal and converting the FSK signal into a serial port signal to be output to the telephone audio signal processing circuit for processing, the microprocessor is electrically connected with the main control board and used for feeding back a received signal and data to the main control board, and the main control board is used for storing the received data through a memory card or transmitting the received data to the recording server through an interface board;
preferably, as shown in fig. 4, the line voltage measuring circuit includes an MB6S rectifier bridge, a PC817 photocoupler, a capacitor C49, a resistor R40 and a resistor R41; two input ends of the MB6S rectifier bridge are respectively and electrically connected with a positive/negative wire of a telephone wire, a positive output end of the MB6S rectifier bridge is electrically connected with a positive input end of a PC817 photoelectric coupler through a resistor R41, and a negative output end is directly and electrically connected with a negative input end of the PC817 photoelectric coupler; a capacitor C49 is also electrically connected between the positive output end and the negative output end of the MB6S rectifier bridge; the output end of the PC817 photoelectric coupler is electrically connected with the microprocessor and is also connected with +3.3V voltage through a resistor R40.
Preferably, as shown in fig. 5, the online status determining circuit includes a HCPL-073A chip, a 2DA pin of the HCPL-073A chip is electrically connected to a positive output terminal of the MB6S rectifier bridge through a resistor R75, a 2DK pin is electrically connected to a negative output terminal of the MB6S rectifier bridge, a VCC pin is connected to a voltage of 3.3V, and a VO2 pin is electrically connected to the microcontroller.
In the above embodiment, the line voltage measuring circuit uses a full-bridge circuit to perform ac/dc conversion, and then uses a PC817 photoelectric coupler to perform isolation and measure feedback dc voltage, the circuit has the advantages of low cost, and can measure the telephone line voltage by current under the condition of potential isolation, the reason for using the isolated voltage for measurement is that the telephone system and the recording system have potential difference, if the system potential is not isolated, the system potential is abnormal, and the telephone audio signal is a lot of noise; because the linear interval of each PC817 is not fixed, linear deviation exists, and online voltage measurement between 0 and 10V is inaccurate, a telephone online judgment circuit is introduced into the circuit, and the online judgment circuit judges whether a telephone is online or not by using HCPL-073A high-gain optical coupling to judge the online voltage between 0 and 10V.
Preferably, as shown in fig. 6, the FSK telephone number signal processing circuit includes an HT9032D chip, a resistor R42, a resistor R44, a resistor R46, a capacitor C42, a capacitor C47, a capacitor C50, a capacitor C52, a capacitor C53, a capacitor C55, and a crystal Y2; the DOUT pin of the HT9032D chip is used for accessing an incoming call number signal of an FSK system; the TIP pin of the HT9032D chip is electrically connected with a telephone audio signal processing circuit sequentially through a resistor R42 and a capacitor C47, and specifically is electrically connected to the same-name output end of an audio isolation transformer T4, an FSK-system incoming number signal is subjected to signal processing through an HT9032D chip, the FSK signal is converted into a serial port signal and is output to the telephone audio signal processing circuit for processing, a RING pin is grounded sequentially through a resistor 44 and a capacitor C50, a PDWN pin is grounded through a capacitor C53 and +5V voltage, the PDWN pin is grounded through a resistor R46, a VDD pin is grounded through +5V voltage and a capacitor C45, an X1 pin is grounded through a capacitor C52, an X2 pin is grounded through a capacitor C55, and a crystal oscillator Y2 is electrically connected between the X1 pin and the X2 pin.
Preferably, the telephone audio signal processing circuit includes an isolation circuit for performing audio isolation on the telephone analog audio signal, an overvoltage protection circuit for performing overvoltage protection on the telephone analog audio signal, and a voice codec circuit for performing PCM coding on the telephone analog audio signal, the isolation circuit, the overvoltage protection circuit, and the voice codec circuit are electrically connected in sequence, an input end of the isolation circuit is used for accessing the telephone analog audio signal, and an output end of the voice codec circuit is electrically connected to the microprocessor.
Preferably, as shown in fig. 7, the isolation circuit includes an audio isolation transformer T4, and the overvoltage protection circuit includes a TVS diode; the homonymous input end of the audio isolation transformer T4 is electrically connected with the positive line of the telephone line through a capacitor C20, the synonym input end is electrically connected with the negative line of the telephone line through a resistor R14, two ends of the TVS diode are respectively electrically connected with the homonymous output end and the synonym output end of the audio isolation transformer T4, and a capacitor C27 is electrically connected between the homonymous output end and the synonym output end of the audio isolation transformer T4; the homonymous output end of the audio isolation transformer T4 is electrically connected with the voice coding and decoding circuit through a resistor R10, and the synonym output end is grounded.
The voice coding and decoding circuit comprises a TP3057 chip and a peripheral circuit thereof, a VFX-pin of the TP3057 chip is electrically connected with the overvoltage protection circuit through a resistor R10, and a DX pin of the TP3057 chip is electrically connected with the microprocessor.
In the embodiment, the telephone audio signal is firstly subjected to audio isolation through the audio isolation transformer, so that the potential difference between the telephone line and the emergency recording module can be isolated, the hum interference of the telephone line is avoided, the high impedance requirement of the line is ensured, the problem of overhigh line voltage caused by lightning stroke and the like can be effectively prevented through the TVS diode, and the rear-end circuit is protected; TP3057 is a A-law speech coding and decoding chip, which outputs digital signals to a microprocessor by PCM coding analog audio signals of the telephone.
As another embodiment of the present invention, a method for implementing an emergency recording function based on a built-in backup module is provided, where the method includes:
when the recording server works normally, the recording server receives a recording request, performs recording work based on the recording request and stores recording data;
when the recording server cannot provide recording service under the condition of abnormal recording work or power failure, the emergency recording module is switched to record and store the recording data, and the recording data is transmitted to the recording server to be stored when the recording server recovers to be normal.
It should be noted that, in all circuit drawings, signal lines having the same network symbol are shown as being electrically connected to each other.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An emergency recording function implementation system based on a built-in backup module is characterized by comprising a recording server and an emergency recording module, wherein the recording server and the emergency recording module are in protocol communication with each other through a network interface;
the recording server is used for receiving a recording request when the recording server works normally, performing recording work based on the recording request and storing recording data;
the emergency recording module is used for recording and storing recording data when the recording server cannot provide recording service under the condition of abnormal recording work or power failure, and transmitting the recording data to the recording server for storage when the recording server recovers to be normal.
2. The system for realizing the emergency recording function based on the built-in backup module according to claim 1, wherein the emergency recording module comprises an interface board, an analog telephone signal processing board, a main control board and a backup battery, and the interface board and the analog telephone signal processing board are electrically connected with the main control board; the main control board is connected with the recording server through an interface board, and the backup battery is respectively electrically connected with the interface board, the analog telephone signal processing board and the main control board and used for providing working voltage for the interface board, the analog telephone signal processing board and the main control board;
the main control board is used for starting the analog telephone signal processing board to record and store the recording data when the recording server cannot provide the recording service under the condition of abnormal recording work or power failure, and transmitting the recording data to the recording server for storage through the interface board when the recording server recovers to be normal.
3. The system for realizing the emergency recording function based on the built-in backup module according to claim 2, wherein the analog telephone signal processing board comprises a telephone audio signal processing circuit, a line voltage measuring circuit, an online state judging circuit, an FSK telephone number signal processing circuit and a microprocessor, the telephone audio signal processing circuit, the line voltage measuring circuit and the online state judging circuit are all electrically connected with the microprocessor, the FSK telephone number signal processing circuit is electrically connected with the telephone audio signal processing circuit, and the microprocessor is electrically connected with the main control board;
the telephone audio signal processing circuit is used for carrying out PCM coding on a telephone analog audio signal and outputting a digital signal to the microprocessor;
the line voltage measuring circuit is used for measuring the voltage of the telephone line and feeding back the voltage to the microprocessor;
the online state judging circuit is used for detecting whether a telephone is online or not and feeding back the telephone to the microprocessor;
the FSK telephone number signal processing circuit is used for processing an FSK system incoming call number signal, converting the FSK signal into a serial port signal and outputting the serial port signal to the telephone audio signal processing circuit.
4. The built-in backup module-based emergency recording function realization system of claim 3, wherein the line voltage measurement circuit comprises an MB6S rectifier bridge, a PC817 photoelectric coupler, a capacitor C49, a resistor R40 and a resistor R41; two input ends of the MB6S rectifier bridge are respectively and electrically connected with a positive/negative wire of a telephone wire, a positive output end of the MB6S rectifier bridge is electrically connected with a positive input end of a PC817 photoelectric coupler through a resistor R41, and a negative output end is directly and electrically connected with a negative input end of the PC817 photoelectric coupler; a capacitor C49 is also electrically connected between the positive output end and the negative output end of the MB6S rectifier bridge; the output end of the PC817 photoelectric coupler is electrically connected with the microprocessor and is also connected with +3.3V voltage through a resistor R40.
5. The system for realizing the emergency recording function based on the built-in backup module according to claim 4, wherein the online status determining circuit comprises a HCPL-073A chip, a 2DA pin of the HCPL-073A chip is electrically connected with a positive output end of an MB6S rectifier bridge through a resistor R75, a 2DK pin is electrically connected with a negative output end of the MB6S rectifier bridge, a VCC pin is connected with 3.3V voltage, and a VO2 pin is electrically connected with the microcontroller.
6. The system for realizing the emergency recording function based on the built-in backup module according to claim 3, wherein the FSK telephone number signal processing circuit comprises an HT9032D chip, a resistor R42, a resistor R44, a resistor R46, a capacitor C42, a capacitor C47, a capacitor C50, a capacitor C52, a capacitor C53, a capacitor C55 and a crystal oscillator Y2; the DOUT pin of the HT9032D chip is used for accessing an incoming call number signal of an FSK system; the TIP pin of the HT9032D chip is electrically connected with the telephone audio signal processing circuit sequentially through a resistor R42 and a capacitor C47, the RING pin is grounded sequentially through a resistor 44 and a capacitor C50, the PDWN pin is connected with +5V voltage through a capacitor C53 and is grounded through a resistor R46, the VDD pin is connected with +5V voltage and is grounded through a capacitor C45, the X1 pin is grounded through a capacitor C52, the X2 pin is grounded through a capacitor C55, and a crystal oscillator Y2 is electrically connected between the X1 pin and the X2 pin.
7. The system for realizing the emergency recording function based on the built-in backup module according to claim 3, wherein the telephone audio signal processing circuit comprises an isolation circuit for audio isolation of the telephone analog audio signal, an overvoltage protection circuit for overvoltage protection and a voice codec circuit for PCM coding of the telephone analog audio signal, the isolation circuit, the overvoltage protection circuit and the voice codec circuit are electrically connected in sequence, an input end of the isolation circuit is used for accessing the telephone analog audio signal, and an output end of the voice codec circuit is electrically connected to the microprocessor.
8. The built-in backup module-based emergency recording function implementation system of claim 7, wherein the isolation circuit comprises an audio isolation transformer T4, and the overvoltage protection circuit comprises a TVS diode; the homonymous input end of the audio isolation transformer T4 is electrically connected with the positive line of the telephone line through a capacitor C20, the synonym input end is electrically connected with the negative line of the telephone line through a resistor R14, two ends of the TVS diode are respectively electrically connected with the homonymous output end and the synonym output end of the audio isolation transformer T4, and a capacitor C27 is electrically connected between the homonymous output end and the synonym output end of the audio isolation transformer T4; the homonymous output end of the audio isolation transformer T4 is also electrically connected with the voice coding and decoding circuit through a resistor R10, and the synonym output end is also grounded.
9. The system for realizing the emergency recording function based on the built-in backup module according to claim 7, wherein the voice codec circuit comprises a TP3057 chip and peripheral circuits thereof, a VFX-pin of the TP3057 chip is electrically connected with the overvoltage protection circuit through a resistor R10, and a DX-pin of the TP3057 chip is electrically connected with the microprocessor.
10. A method for realizing an emergency recording function based on a built-in backup module is characterized by comprising the following steps:
when the recording server works normally, the recording server receives a recording request, performs recording work based on the recording request and stores recording data;
when the recording server cannot provide recording service under the condition of abnormal recording work or power failure, the emergency recording module is switched to record and store the recording data, and the recording data is transmitted to the recording server to be stored when the recording server recovers to be normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011143441.9A CN112367435A (en) | 2020-10-23 | 2020-10-23 | Emergency recording function implementation system and method based on built-in backup module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011143441.9A CN112367435A (en) | 2020-10-23 | 2020-10-23 | Emergency recording function implementation system and method based on built-in backup module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112367435A true CN112367435A (en) | 2021-02-12 |
Family
ID=74511717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011143441.9A Pending CN112367435A (en) | 2020-10-23 | 2020-10-23 | Emergency recording function implementation system and method based on built-in backup module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112367435A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834931A (en) * | 2010-05-06 | 2010-09-15 | 沈阳帝信通信电子工程有限公司 | IP (Internet Protocol) centralized dictation system and method |
| CN201600578U (en) * | 2010-03-18 | 2010-10-06 | 华北电力大学 | Multi-machine synchronous self-timing ringing-up controller |
| CN102932562A (en) * | 2012-10-29 | 2013-02-13 | 携程计算机技术（上海）有限公司 | Call center recording method and system based on Internet protocol (IP) |
| CN204089863U (en) * | 2014-10-15 | 2015-01-07 | 哈尔滨理工大学 | PSTN-Ethernet gateway |
| CN105847604A (en) * | 2016-05-19 | 2016-08-10 | 河北远东通信系统工程有限公司 | Soft switching recording system hot backup realizing method |
| CN205681521U (en) * | 2016-06-25 | 2016-11-09 | 中国石油大庆炼化公司机电仪厂 | A kind of telecord can being connected with computer |
| CN208369665U (en) * | 2018-06-08 | 2019-01-11 | 锦州通讯设备电子工程有限公司 | A kind of digital subset speaking circuit |
| CN110534136A (en) * | 2018-05-23 | 2019-12-03 | 北京京东尚科信息技术有限公司 | The method and apparatus of recording |
-
2020
- 2020-10-23 CN CN202011143441.9A patent/CN112367435A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201600578U (en) * | 2010-03-18 | 2010-10-06 | 华北电力大学 | Multi-machine synchronous self-timing ringing-up controller |
| CN101834931A (en) * | 2010-05-06 | 2010-09-15 | 沈阳帝信通信电子工程有限公司 | IP (Internet Protocol) centralized dictation system and method |
| CN102932562A (en) * | 2012-10-29 | 2013-02-13 | 携程计算机技术（上海）有限公司 | Call center recording method and system based on Internet protocol (IP) |
| CN204089863U (en) * | 2014-10-15 | 2015-01-07 | 哈尔滨理工大学 | PSTN-Ethernet gateway |
| CN105847604A (en) * | 2016-05-19 | 2016-08-10 | 河北远东通信系统工程有限公司 | Soft switching recording system hot backup realizing method |
| CN205681521U (en) * | 2016-06-25 | 2016-11-09 | 中国石油大庆炼化公司机电仪厂 | A kind of telecord can being connected with computer |
| CN110534136A (en) * | 2018-05-23 | 2019-12-03 | 北京京东尚科信息技术有限公司 | The method and apparatus of recording |
| CN208369665U (en) * | 2018-06-08 | 2019-01-11 | 锦州通讯设备电子工程有限公司 | A kind of digital subset speaking circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100265517B1 (en) | Apparaus and method for monitoring power loss in a telecommunications system | |
| US20060197387A1 (en) | Network power splitter for supplying power from a network to a portable electronic device | |
| WO2012009892A1 (en) | Terminal apparatus and method for reporting power failure alarm of terminal apparatus | |
| CN213846725U (en) | Analog telephone signal processing circuit for emergency recording | |
| WO2013131236A1 (en) | Power supply circuit and electrical device | |
| KR20230013595A (en) | Smart battery device, and electronic device thereof | |
| CN112367435A (en) | Emergency recording function implementation system and method based on built-in backup module | |
| CN207518016U (en) | Wireless charging built-up circuit and device | |
| CN112710891B (en) | Branch switch power-off and power-on monitoring sensor, system and method | |
| CN213846774U (en) | Telephone recording device with built-in emergency recording module | |
| CN210518505U (en) | Multi-card intelligent telephone traffic recording box | |
| CN212086215U (en) | Control circuit of high-power isolation POE module | |
| CN212086216U (en) | High-power photoelectric isolation POE module | |
| CN110867060A (en) | Split type electric power data transmission system | |
| CN210924881U (en) | Split type electric power data transmission system | |
| CN111585454A (en) | Support two Type-c mouth adapters of audio and video data intercommunication | |
| CN221080951U (en) | Full-compatible conversion module for converting USB-A port into Type-C port and charging datase:Sub>A line | |
| CN201359618Y (en) | Wireless intelligent power consumption monitoring system | |
| CN213659436U (en) | Mainboard state real-time monitoring circuit device | |
| CN210005898U (en) | environment monitoring wireless acquisition device with lightning protection function | |
| US6347135B1 (en) | Apparatus and method for powering a telephone-based inbound telemetry device | |
| CN221058278U (en) | Power-off spontaneous signal circuit | |
| CN215833585U (en) | Network equipment power failure detection system | |
| CN218938450U (en) | Storage battery monitoring device | |
| CN210803689U (en) | Power supply power failure detection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210212 |
|
| RJ01 | Rejection of invention patent application after publication |