CN2453514Y

CN2453514Y - Digital centralized speech sound recording device

Info

Publication number: CN2453514Y
Application number: CN00263211U
Authority: CN
Inventors: 赵国恩; 周勇
Original assignee: 姚远; 段迎淳
Priority date: 2000-12-08
Filing date: 2000-12-08
Publication date: 2001-10-10
Anticipated expiration: 2010-12-08

Abstract

The utility model relates to digital centralized speech recording equipment which belongs to the speech information transmitting and storing equipment and is suitable for recording and playing speech information. The utility model is mainly characterized in that the utility model is provided with a recording transmitter which can receive the information of a telephone centralizer and a radio station, and the recorded speech information is transmitted to a sound recording main machine through a transmitting passage and is stored and checked. The utility model is provided with a speech memory chip with large capacity, a hard disk with large capacity, a microprocessor, an A/D conversion circuit and a speech processor, and the main machine is provided with a special interface card composed of a digital signal processor and an embedded type CPU. The utility model can compress and convert the dispersed speech information in the recording transmitter into digital information which is stored in the main machine and is reserved. The utility model is convenient to inquire in a centralized mode, and uses the existing telephone network to form a sound recording network.

Description

The digital convergence speech recording apparatus

The utility model belongs to voice messaging transmission, memory device, is suitable for the voice messaging recording playback, is particularly suited for the record and the transmission of voice messagings such as railways train operation command telephone, blocking telephone, wireless train dispatchment radio.

At present, the railways train operation speech recording apparatus mainly contains magnetic tape type sound-track engraving apparatus and solid state sound-track engraving apparatus etc., and the former now progressively eliminates, and the solid state sound-track engraving apparatus exists to distribute and disperses, and is not easy to concentrate inquiry and maintenance, and the storage chip amount of capacity is difficult for shortcomings such as grasp.And digital convergence recording network system costs an arm and a leg.

In the patent No. is ZL98248758.4, name is called in the Chinese patent of " railway communication solid state record instrument ", discloses a kind of solid state record instrument of being made up of CPU (central processing unit) CPU, FLASH flash memory, DSP digital signal processor, coding-decoding circuit, double-tone frequency receiving circuit, Help by Phone interface, input/output interface circuit, data exchange interface etc.

The purpose of this utility model is exactly to solve the shortcoming that aforementioned prior art exists, and provides a kind of being convenient to concentrate inquiry, canned data, and the digital convergence speech recording apparatus of small investment.

The purpose of this utility model can realize in the following manner.

Utilize the prior art of " railway communication solid state record instrument ", improve the back, the recording main frame by central microprocessor control is set again, be connected by the existing channel that transmits between record transmitter and main frame as the record transmitter.Promptly, keep " railway communication solid state record instrument " microprocessor CPU, storer, the double-tone basic comprising of receiving circuit, recording junction circuit, stabilized voltage supply etc. frequently, the invention is storer 4 usefulness high capacity voice storage chips, double-tone receiving circuit frequently connects transmission interface formation transmission interface circuit 5, storer 4, transmission interface circuit 5 connect microprocessor 3 respectively, also be provided with A/D change-over circuit 2 and connect microprocessor 3, test terminal 6, recording junction circuit 1, transmission interface circuit 5 respectively, constitute the record transmitter thus; Record transmitter canned data passes to main frame through the transmission channel; The structure of main frame is: be provided with central microprocessor 10, difference connected storage 11, speech processor 9, Help by Phone circuit 13, display controller 5, speech processor 9 also connects transmission tandem device 8, playback set 14, Help by Phone circuit 13 respectively, also is provided with ups power 15.

Major advantage of the present utility model is:

1. the interface card of main frame is made up of digital signal processor (DSP) and embedded type CPU, and control continues, and can control hyperchannel in real time, efficiently and work simultaneously, guarantees the stability and the reliability of equipment.

2. but information long period of receiving of main frame leaves in its big capacity hard disk for future referencely, satisfies the demands.

3. the record transmitter adopts the Solid State Recorder that high capacity voice storage chip and up-to-date compression algorithm constitute, have automatic dialing and with the main-machine communication function.

4. use, easy to maintenance, small investment is compared with digital convergence recording network system equipment, invests this solid state sound-track engraving apparatus transmitter of noting down, and can save 50% investment.

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is the circuit structure block diagram of record transmitter;

Fig. 2, Fig. 3 are record transmitter circuit schematic diagrams;

Fig. 4 is the host circuit structured flowchart;

Fig. 5 is the host circuit schematic diagram.

Speech processor 9 is DSP digital signal processors in the present embodiment, it and embedded type CPU are formed the special purpose interface card of main frame, and the storer 11 of main frame is a big capacity hard disk, and main frame is a digital recording, the playback A that adopts international standards leads PCM, and compress speech is encoded with ADPCM.

Storer 4 usefulness PC-100 56M chips in the record storage, the MC14066BCP chip is used in A/D conversion 2, amplifier F1-F3 LM3210 chip in the recording tandem device 1, microprocessor 3 HT48R50-A-0 chip, the amplifier IC99BA TL084 chip in the transmission interface circuit 5; Central microprocessor 10 in the main frame is PII400A central processing units, and industrial motherboard is PCA-611 4P4, and storer 11 is 90650U ₂Hard disk, speech processes 9 TW-08A chip.

The circuit operation summary:

1. recording is stored and transmission course: record storage records whom, stores according to whose record earlier with regard to the principle of elder generation, (following is example with phone concentrator bass), voice signal enters the concentrator bass recording access of recording tandem device 1, through capacitor C 15 couplings, amplifier F2 amplifies, export the terminal 8 of delivering to A/D change-over circuit 2 by capacitor C 11, after mould/number conversion, deliver to microprocessor 3 by 5,6 terminals again, deposit storer 4 (referring to Fig. 2,3) in through the 35-40 of microprocessor 3 terminal.

After the microprocessor 3 of record storage is finished whole section recorded message storage, send a control signal to transmission interface circuit 5 to its (CPU) terminal 13, open triode N1 starting relay J1, the contact RELAY3-4 of relay J 1 connects, this moment, microprocessor 3 took out information from storer 4, through 2 of

microprocessor

3,3 terminals are sent into the A/D change-over circuit, behind D/A switch, deliver to transmission interface circuit 5 by its terminal 4, after resistance R 64 send amplifier IC99:B to amplify, be coupled to secondary through transformer T2, deliver to transmission interface ChK through relay tip RELAY4-3 again, send into the transmission tandem device 8 of transmission channel to main frame, after sending into speech processor 9 processing again, send central microprocessor 10, send into mass storage (hard disk) 11 again and make long-time preserve (referring to Fig. 3-5).

2. main frame viewing files and playback process: after central microprocessor 10 is received the relevant controlling instruction that supervisory keyboard (or mouse) 12 sends into, just from storer 11, access desired data, be reduced into voice signal through speech processor (digital signal processor DSP) 9 decompression decodings, device 14 amplifies the back broadcast between veering away.Control display part 12 also shows recording address, passage, record storage record length, main frame time of reception, relevant datas such as record length (referring to Fig. 5) simultaneously.

3. Help by Phone: the ringing signal that Help by Phone interface DCh receives, through the break RELAY3 of relay J 2 to photoelectric coupling circuit, again through resistance R 55, R56 step-down, deliver to the terminal CPU2 of central microprocessor 10, central microprocessor 10 send electricity, triode N1 conducting for triode N2 according to the setting ring number of times by terminal CPU1, starting relay J2 adhesive disconnects ringing circuit and connects double-tone frequency sign indicating number and sound circuit.After Help by Phone interface DCh receives touch-tone signal, to transformer T3 coupling, be connected to contact RE34 through the movable contact RELAY4 of relay J 2, amplify to amplifier IC99:A through resistance R 63 again to contact RE33, send into speech processor 9 terminals 1 by the 1N6 line, deliver to central microprocessor 10 again.Central microprocessor 10 takes out data according to instruction from storer 11, sending voice processor (digital signal processor DSP) decompresses to decode and is reduced into voice signal, the note amplifier IC99:B that is delivered to Help by Phone circuit 13 by its terminal 2 amplifies, deliver to the contact RELAY4 of relay J 2 again through transformer T2 coupling, be connected to Help by Phone interface DCh output (referring to Fig. 5).

Recording tandem device 1 input port of record transmitter of the present utility model can answer the call concentrator and wireless station, the recording main frame can connect the record transmitter more than 1, transmission channel between recording main frame and the record transmitter then can constitute the voice record network as utilizing the existing telephone exchange network.

Claims

1, a kind of digital convergence speech recording apparatus, comprise microprocessor CPU, storer, double-tone receiving circuit, recording junction circuit, stabilized voltage supply frequently, it is characterized in that: storer (4) high capacity voice storage chip, double-tone receiving circuit frequently connects transmission interface formation transmission interface circuit (5), storer (4), transmission interface circuit (5) connect microprocessor (3) respectively, also be provided with A/D change-over circuit (2), connect microprocessor (3), test terminal (6), recording junction circuit (1), transmission interface circuit (5) respectively, constitute the record transmitter thus; Record transmitter canned data passes to the recording main frame; The structure of main frame is: be provided with central microprocessor (10), difference connected storage (11), speech processor (9), Help by Phone circuit (13), display controller (5), speech processor (9) also connects transmission tandem device (8), playback set (14), Help by Phone circuit (13) respectively, also is provided with ups power (15).

2, digital convergence speech recording apparatus according to claim 1, it is characterized in that: described speech processor (9) is the DSP digital signal processor, it and embedded type CPU are formed the special purpose interface card of main frame, the storer of main frame (11) is a big capacity hard disk, main frame is a digital recording, the playback A that adopts international standards leads PCM, and compress speech is encoded with ADPCM.