CN102158240B - Terminal device based on large-screen image display screen for displaying early warning information of air situations and disaster situations - Google Patents
Terminal device based on large-screen image display screen for displaying early warning information of air situations and disaster situations Download PDFInfo
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Abstract
The invention discloses a terminal device based on a large-screen image display screen for displaying early warning information of air situations and disaster situations, which comprises a channel modem, a channel encoding/decoding module, a data encoding/decoding module, an image control module, an image driving module, an image display screen, a microprocessor control module, a panel operation interface module, an analog voice-data voice conversion module, an audio power amplification module, a speaker and a digital warning signal generator. The device adopts an LED (light-emitting diode) dot matrix for display or a large-size LCD (liquid crystal display) screen or a 3D (three-dimensional) display screen display technology and an acoustic code voice technology for performing message display, image display and acoustic code voice communication, and sending the early warning information of various types of air defense, disaster prevention and other warnings, thereby achieving the purpose of providing the early warning information of the various types of warnings for the public in three message forms of text, image and voice. By adopting the terminal device, not only can the early warning information of the various types of warnings be received, but also air defense aural warning can be performed, and the specific contents of the early warning information of the air defense warnings can be displayed in the forms of the text and the image. The terminal device adopts the modularized design, so that the structure is relatively simple.
Description
Technical field
The present invention relates to a kind of end equipment of communicating by letter that various alarms and information warning is carried out audible alarm and text prompt, what relate to particularly that a kind of LCD of use, LED, 3D big screen display screen show people's air defence alarm early warning information, civil defence the condition of a disaster alarm early warning information shows the terminal equipment of empty feelings the condition of a disaster early warning information based on the large-screen image display screen.
Background technology
At present, it is known that what empty feelings the condition of a disaster early warning information was informed is to provide the central controlled alarm terminal control appliance of control system and outdoor siren by alarm, when needs are provided empty feelings the condition of a disaster early warning information message, the control central station is provided in alarm or intermediate station is provided alarm command, the outdoor siren of startup interruption sound equipment was in accordance with regulations rung after the alarm terminal control appliance received instruction, provided sky feelings the condition of a disaster early warning information to the outdoor public.This mode provides in advance air raid alarm, air raid alarm, three kinds of sound equipment air defence warnings of allclear early warning information to the outdoor public.This sound equipment air defense type of alarm is reported to the police and is sometimes made the outdoor public be difficult to differentiate the alarm kind, can't identify by distinguishing of sound equipment various the condition of a disaster alarms such as typhoon warning, tsunami warning, flood control alarm, flood discharge alarm, mud-rock flow alarm, alarm of fire, earthquake warning, chemical accident etc.
Summary of the invention
The object of the invention is to overcome the deficiency of prior art, a kind of terminal equipment that shows empty feelings the condition of a disaster early warning information based on the large-screen image display screen is provided, this terminal equipment not only receives the various alarm early warning information of various private networks and public network or other need to be to other message of public's issue, simultaneously can carry out antiaircraft audible alarm and with particular content and all kinds of the condition of a disaster alarm early warning information of the form demonstration air defence warning early warning information of literal, image to the public, the present invention adopts modularized design, and is relatively simple for structure.
The technical solution adopted for the present invention to solve the technical problems is: a kind of terminal equipment that shows empty feelings the condition of a disaster early warning information based on the large-screen image display screen comprises:
One Channel Modulation demodulator is used for finishing the demodulation of reception signal or the modulation of transmitted signal;
One channel coding/decoding module is used for the signal after the signal after the demodulation or the modulation is carried out channel-decoding or chnnel coding;
One data encoding/decoding module is used for carrying out data decode or data encoding through the data after channel-decoding or the chnnel coding;
One the image control mold is used for image display panel is controlled;
One image-driven module is used for image display panel is carried out display driver;
One image display panel is used for display text and image information;
One microprocessor control module is used for Channel Modulation demodulation module, channel coding/decoding module, data encoding/decoding module, panel operation interface module, simulated voice/data voice conversion module, digital alarm signal generator are controlled;
One panel operation interface module is used for carrying out panel operation and carries out the interface connection with being connected;
One simulated voice and data voice conversion module are used for digital audio signal is processed into analog signal;
One audio frequency power amplifier module is used for audio signal power is amplified;
One loud speaker is used for sending sound equipment;
One digital alarm signal generator is used for producing and storing all kinds of alarm acoustic signals;
One end of Channel Modulation demodulator is connected with radio-frequency antenna or wire message way, and the other end of Channel Modulation demodulator is connected with an end of channel coding/decoding module, and an again end of Channel Modulation demodulator is connected with the microprocessor control module; The other end of channel coding/decoding module is connected with an end of data encoding/decoding module, and an again end of channel coding/decoding module is connected with the microprocessor control module; The other end of data encoding/decoding module is connected with the data voice conversion module with simulated voice, an again end of data encoding/decoding module is connected with the microprocessor control module, and an output of data encoding/decoding module is connected with the input of the image control mold; The output of the image control mold is connected with the input of image-driven module; The output of image-driven module is connected with the input of image display panel; The output of panel operation interface module is connected to the microprocessor control module; The other end of simulated voice and data voice conversion module is connected with the microprocessor control module, and the output of simulated voice and data voice conversion module is connected to the input of audio frequency power amplifier module; The output of audio frequency power amplifier module is connected to loud speaker; The input of numeral alarm signal generator is connected with the microprocessor control module, and the output of digital alarm signal generator is connected to the input of audio frequency power amplifier module.
Described Channel Modulation demodulation module is wire line MODEM or radio modem.
Described image display panel is LED dot matrix display screen or large-scale LCD display screen or 3D display screen.
When radio-frequency antenna or wire message way receive alarm early warning information or other message, at first carry out to received signal demodulation through the Channel Modulation demodulator, then carry out the channel signal decoding through the channel coding/decoding module, through the data encoding/decoding module the transmission of data is decoded again; To message information, alarm early warning information, image information, behind the control of the image control mold image display panel, image-driven module image display panel display driver, shown by image display panel.To the various air defence warning early warning information that receive, produce corresponding audio signal by microprocessor control module control figure alarm signal generator, after amplifying through audio frequency power amplifier module, send the alarm sound equipment that people's ear can be heard by loud speaker.To the data voice signal that receives, after passing through simulated voice and the data voice conversion module becoming analogue voice signal with the data voice signal intensity, amplify through audio frequency power amplifier module, send the speech sound equipment that people's ear can be heard by loud speaker.When this equipment has message to send, input by the panel operation interface module, by the microprocessor control module message is processed, then message data is encoded, the channel coding/decoding module is carried out chnnel coding to message data to sending, the channel modulator-demodulator is sent by wireless antenna or Wireline after modulating through the data encoding/decoding module.
The invention has the beneficial effects as follows, owing to having adopted a Channel Modulation demodulator, one channel coding/decoding module, one data encoding/decoding module, one the image control mold, one image-driven module, one image display panel, one microprocessor control module, one panel operation interface module, one simulated voice and data voice conversion module, one audio frequency power amplifier module, one loud speaker and a digital alarm signal generator consist of the terminal equipment that shows empty feelings the condition of a disaster early warning information based on the large-screen image display screen, this terminal equipment not only receives the various alarm early warning information of various private networks and public network or other need to be to other message of public's issue, simultaneously can carry out antiaircraft audible alarm and use literal to the public, the form of image shows particular content and all kinds of the condition of a disaster alarm early warning information of air defence warning early warning information, the present invention adopts modularized design, and is relatively simple for structure.
Below in conjunction with drawings and Examples the present invention is described in further detail; But of the present inventionly a kind ofly show that based on the large-screen image display screen terminal equipment of empty feelings the condition of a disaster early warning information is not limited to embodiment.
Description of drawings
Fig. 1 is theory diagram of the present invention;
Fig. 2 is channel coding/decoding module circuit diagram of the present invention;
Fig. 3 is data encoding/decoding module circuit diagram of the present invention;
Fig. 4 is the image control mold circuit diagram of the present invention;
Fig. 5 is image-driven module circuit diagram of the present invention;
Fig. 6 is microprocessor control module circuit diagram of the present invention;
Fig. 7 is simulated voice of the present invention and data voice conversion module block diagram;
Fig. 8 is speech A/D-D/A circuit diagram of the present invention;
Fig. 9 is speech coding of the present invention/decoding circuit figure;
Figure 10 is data voice I/O control circuit figure of the present invention;
Figure 11 is voice data frame assumption diagram of the present invention;
Figure 12 is digital alarm signal generator circuit diagram of the present invention.
Embodiment
Embodiment, referring to shown in Figure 1, a kind of terminal equipment that shows empty feelings the condition of a disaster early warning information based on the large-screen image display screen of the present invention comprises:
One Channel Modulation demodulator 1 (the present embodiment adopts the wireless high-speed data radio station) is used for finishing the demodulation of reception signal or the modulation of transmitted signal;
One channel coding/decoding module 2 is used for the signal after the signal after the demodulation or the modulation is carried out channel-decoding or chnnel coding;
One data encoding/decoding module 3 is used for carrying out data decode or data encoding through the data after channel-decoding or the chnnel coding;
One the image control mold 4 is used for image display panel is controlled;
One image-driven module 5 is used for image display panel is carried out display driver;
One image display panel 6 is used for display text and image information;
One microprocessor control module 7 is used for Channel Modulation demodulation module, channel coding/decoding module, data encoding/decoding module, panel operation interface module, simulated voice/data voice conversion module, digital alarm signal generator are controlled;
One panel operation interface module 8 is used for carrying out panel operation and carries out the interface connection with being connected;
One simulated voice and data voice conversion module 9 are used for digital audio signal is processed into analog signal;
One audio frequency power amplifier module 10 is used for audio signal power is amplified;
One loud speaker 11 is used for sending sound equipment;
One digital alarm signal generator 12 is used for producing and storing all kinds of alarm acoustic signals;
One power module 13 is used for providing power supply signal to circuit;
One end of Channel Modulation demodulator 1 (being the wireless high-speed data radio station) is connected with radio-frequency antenna, if wire message way then adopts the wire message way modulator-demodulator, the other end of Channel Modulation demodulator 1 is connected with an end of channel coding/decoding module 2, and an again end of Channel Modulation demodulator 1 is connected with microprocessor control module 7; The other end of channel coding/decoding module 2 is connected with an end of data encoding/decoding module 3, and an again end of channel coding/decoding module 2 is connected with microprocessor control module 7; The other end of data encoding/decoding module 3 is connected with data voice conversion module 9 with simulated voice, an again end of data encoding/decoding module 3 is connected with microprocessor control module 7, and an output of data encoding/decoding module 3 is connected with the input of the image control mold 4; The output of the image control mold 4 is connected with the input of image-driven module 5; The output of image-driven module 5 is connected with the input of image display panel 6; The output of panel operation interface module 8 is connected with microprocessor control module 7; The other end of simulated voice and data voice conversion module 9 is connected with microprocessor control module 7, and the output of simulated voice and data voice conversion module 9 is connected to the input of audio frequency power amplifier module 10; The output of audio frequency power amplifier module 10 is connected to loud speaker 11; The input of numeral alarm signal generator 12 is connected with microprocessor control module 7, and the output of digital alarm signal generator 12 is connected to the input of audio frequency power amplifier module 10.
Described Channel Modulation demodulation module 1 is wire line MODEM or radio modem.
Described image display panel 6 is LED dot matrix display screen or large-scale LCD display screen or 3D display screen.
When radio-frequency antenna or wire message way receive alarm early warning information or other message, at first carry out to received signal demodulation through Channel Modulation demodulator 1, then carry out the channel signal decoding through channel coding/decoding module 2, again through 3 pairs of the transmission of data decodings of data encoding/decoding module; To message information, alarm early warning information, image information, behind the control of the image control mold 4 image display panels, image-driven module 5 image display panel display drivers, shown by image display panel 6.To the various air defence warning early warning information that receive, produce corresponding audio signal by microprocessor control module 7 control figure alarm signal generators 12, after amplifying through audio frequency power amplifier module 10, send the alarm sound equipment that people's ear can be heard by loud speaker 11.To the data voice signal that receives, after passing through simulated voice and data voice conversion module 9 becoming analogue voice signal with the data voice signal intensity, amplify through audio frequency power amplifier module 10, send the speech sound equipment that people's ear can be heard by loud speaker 11.When this equipment has message to send, input by panel operation interface module 8, processed by 7 pairs of message of microprocessor control module, then send that message data is encoded, 2 pairs of message datas of channel coding/decoding module are carried out chnnel coding, sent by wireless antenna or Wireline after 1 modulation of channel modulator-demodulator through 3 pairs of data encoding/decoding modules.
Channel Modulation demodulation module 1 is wire line MODEM or radio modem, according to customer requirements or channel resource configuration.
When disposing line modem, select commercial MORDEN.On physical connection, the end of commercial MORDEN connects wire message way, and such as PSTN, DDN, ISDN etc., the other end is the RS232 communication interface of a standard, connecting channel coding/decoding module 2.
During the configuration wireless high speed modem, select TDMA high-speed radio radio station.On physical connection, an end in TDMA high-speed radio radio station connects wireless antenna, and the other end is the RS232 communication interface of a standard, connecting channel coding/decoding module 2.
Performance index to TDMA high-speed radio radio station have following requirement:
1. high-speed phase-locked loop frequency stabilization wireless receiving and dispatching;
2. satisfy internal and international radio management Information Channel Index;
3. transparent data transmission means;
4. system address recognition function;
5. supported data starts (three lines) and RTS/CTS Handshake Protocol;
6. the forward packet error correction coding+error correcting coding function interweaves
7. channel frequency and other optional parameters are able to programme
8. working frequency points: the special-purpose frequency of industry
9. working method: joining common-frequency simplex, data-voice compatibility.
10. receive and dispatch change-over time :≤5ms
11. communication distance: 25 kilometers of radiuses
12. traffic rate: 19.2Kbps
13. communication interface: RS-232
14. channel bit error rate :≤1X10-5
15. carrier frequency power: 25W
16. data sensitivity :-108dBm (BER 1X10
-5)
17. consumption stream: reception≤75mA emission≤8A
18. frequency stability: 1.5PPm
19. the neighboring trace radiation＜-65dBc
20. frequency stability: 1.5PPm
21. intermodulation anti-interference :≤-70dB
22. adjacentchannel selectivity: 60dB
23. spurious response :-65dB
Suppress 24. block: 80dB
25. operational environment: temperature :-25～+ 55 ℃ of humidity: 95%35 ℃
Referring to shown in Figure 2, channel coding/decoding module 2 is used for line signal is carried out error correction coding.The main control chip of channel coding/decoding module 2 is EPM3128A, its RXD0 is connected with the RS232 mouth of Channel Modulation demodulation module 1 with TXD0, the data/address bus line is in parallel with data encoding/decoding module 3 and microprocessor control module 7, realizes the data interaction of channel coding/decoding module 2 and data encoding/decoding module 3 and microprocessor control module 7.
Chnnel coding adopts the RS coding method, and the present invention has compared various RS coding methods, has revised deficiency and mistake wherein, has adopted the method for the RS encoding and decoding that realize with software.
For (n, k) RS code, message polynomial is m (x), and a is a primitive element, and the RS code generates multinomial
Formula is:
G (x)=(x ten is (x+a a)
2) (x+a
3) ... (x+a
2t)
r(x)＝[x
n-k·m(x)modg(x)]
Code polynomial behind the coding is
c(x)＝x
n-k·m(x)+r(x)
Referring to shown in Figure 3, data encoding/decoding module 3 is used for the transmission of data is encrypted or deciphers, and its main control chip adopts single-chip microcomputer SM89C52 and peripheral circuit element to consist of.The LINK BUS bus parallel connection of the LINK BUS bus of singlechip chip SM89C52 and channel coding/decoding module 2 and microprocessor control module 7 is realized the data interaction with channel coding/decoding module 2 and microprocessor control module 7.The TXD_CTR of singlechip chip SM89C52, RXD_CTR are connected with RX1, the TX1 of the single-chip microcomputer SM89C51 of data voice I/O control unit, are used for the transmitting audio data signal.Single-chip microcomputer SM89C52 adopts information stacking pseudorandom code encryption and deciphering.
Referring to shown in Figure 4, the main control chip of the image control mold 4 adopts single chip computer AT MEGA8L and peripheral circuit element to consist of, this single chip computer AT MEGA8L band 16*16 dot matrix standard Chinese character storehouse and English storehouse.Single chip computer AT MEGA8L control range and menu are as shown in table 1.
Table 1 single chip computer AT MEGA8L control range and menu
Image-driven module 5 is used for realizing the display driver of image display.When selecting the LED dot matrix display screen, display driver circuit design is selected is that the preferred circuit chip of more common on the market 74HC595,74HC04D, 74HC138 and 4953 is built.Its input map interlinking is as the output of control module 4, and the output map interlinking is as the input of display screen 6.
When selecting large-scale LCD display screen or 3D display screen, image-driven module 5 short circuits are linked to each other with image display panel 6 by the video interface of the image control mold 4 direct outputting standards.
Referring to shown in Figure 6, microprocessor control module 7 is used for realizing Channel Modulation demodulator 1, channel coding/decoding module 2, data encoding/decoding module 3, simulated voice and data voice are changed the control of module 9, panel operation interface module 8, digital alarm signal generator 9, and its main control chip adopts single-chip microcomputer C8051F363 and peripheral circuit element to consist of.Control program is curable in the inner 32k bytes Flash of single-chip microcomputer C8051F363.Control program is pressed main program module, radio frequency trace routine module, channel coding/decoding mould control program module, code and decode control program module, receive data processing program module, alarm signal handling procedure, Word message release process module, image information release process module, digital speech control program module, audio alert attention program module, decryption software program module structure.
Simulated voice and data voice conversion module 9 are used for finishing the data-voice conversion.Simulated voice of the present invention and data voice conversion module, the channel width that provides according to circuit and to the basic demand of speech coding, speech coding adopts acoustic code words technology, Fig. 7 is simulated voice and data voice conversion module block diagram, 3 parts are arranged, and Fig. 8, Fig. 9, Figure 10 are the circuit diagrams of its 3 parts.Form and mainly comprise voice A/D-D/A circuit, encoding and decoding speech circuit, data voice I/O control circuit.The interface of data voice I/O control circuit and encoding and decoding speech circuit adopts parallel port frame structure mode, with the interface employing serial communication mode of data encoding/decoding module 3.
Fig. 8 is speech A/D-D/A circuit diagram of the present invention, and the pcm encoder of voice is the voice signals that the voice signal of simulation changed into numeral.It is the first step of voice digitization, also is the basis of compress speech.It is μ/A rule PCM chip that this circuit core chip adopts CSP1027, CSP1027, and analog voice signal adopts difference output and input, and by amplified analog signal to drive analog voice equipment; Synchronization Control partly be mainly used in control frame synchronously and bit synchronous, the control pin is mainly used in selection that μ/A restrains and the selection of low-power consumption mode.Realize the coupling of sequential between CSP1027 and Fig. 9 speech coding/decoding acp chip AMBE21000 by clock synchronization circuit, the key of this interface circuit is that the frame synchronization of PCM speech data and bit are synchronous.It is synchronous that the 8kHz clock source of input is used for bit, and the 2.048MHz clock source is used for frame synchronization.The speech sample rate of AMBE-1000 and A/D or D/A interface all is 8kHz, the speech data of this 8kHz comes input and output by serial ports, method is exactly to the command frame that decoder is inputted a frame ID=0x03 these control signals to be set, and can carry out whole configurations to SIOC.Because the CSP1027 chip is programmable, programming information also can transmit by command frame.In order to simplify the configuration of A/D-D/A chip, one group of default Configuration Values can configure by pin.The Configuration Values that these are default has indicated the order of the program word of the direction of interface and programming device.
Fig. 9 is speech coding of the present invention/decoding circuit figure, and the core codec chip adopts AMBE-1000, and AMBE-1000 is duplexing vocoder chip, adopts the AMBE speech coding algorithm, and code rate is 2.4～9.6kb/s.The most basic part of MBE-1000 is exactly an encoder and a decoder, and both are separate.The audio data stream of encoder reception 8KHz sampling (16bit is linear, 8bit A rule, 8bit u restrains) and with certain speed delivery channel data.On the contrary, decoder receive channel merging becomes audio data stream.The sequential of encoder interface is fully asynchronous.AMBE-1000 adopts the A/D-D/A chip as the interface of voice signal.The form of the audio data stream of input and output is identical, and channel interface adopts 8 or 16 s' microcontroller.
Figure 10 is data voice I/O control chart, adopt the 89C51 single-chip microcomputer to consist of control system and finish control from the compression bit stream and the compression bit stream that is input to decoder of encoder output, when initialization, coder/decoder is carried out the selection of voice and error correcting code speed, the equipment control of A/D-D/A chip simultaneously.AX232 plays the level conversion effect.Circuit is finished the transmission of vocoded information and control information, carries out data input, output by P0 mouth and AMBE-1000, carries out interface by serial communication port and channel circuit.AMBE-1000 selects pin to link to each other by pull-up resistor with DIP switch and corresponding interface, in order to select corresponding mode of operation.Between 2400～9600b/s and 50～4750b/s, freely select voice rate and error correcting code speed by selector switch.Adopt the parallel port passive mode, the clock of CHS_O_CLK is set, this clock need to satisfy the data (i.e. 1 frame data) that can read 34 bytes in 20ms; The parallel port takies more interface resource simultaneously, and application program is comparatively simple.
Figure 11 is the voice data frame assumption diagram, and it is by 17 16 data formats that word forms, and every 20ms encoder is exported 17 words, and same decoder will receive this 17 words.The frame format of input and output will give detailed introduction in following content.5 words are frame head, represent locating information and control information, by header, and ID, these 3 parts of status form.12 remaining words are comprised of coded data bit.These 12 words (192) and if only if when AMBE-1000 is operated in 9600bps whole representative voice data, otherwise the data bit of not using will be filled (voice data begins to fill from highest order) by 0.When AMBE-1000 did not work in 9600bps, whole 272 also were transferred to decoder from encoder.
Audio frequency power amplifier module 10 can select 200W, 500W, 1000W audio frequency power amplifier that audio frequency is amplified according to the size of installation region.
Referring to shown in Figure 12, the numeral alarm signal generator is used for storing all kinds of alarm acoustic signals, acp chip is record/playback chip I SD4008 and 1W amplifier CG7001, the various audio warnings that need report are stored in the chip I SD4008 with the form of data, when needing to report, synthetic analog alarm sound is through the output of J5 end again, the output of J5 end is connected to the input of audio frequency power amplifier module 10, after audio frequency power amplifier module 10 is amplified, send the various antiaircraft warning of audible or disaster alert or other by loud speaker 11 and need warn sound.
Above-described embodiment only is used for further specifying a kind of terminal equipment that shows empty feelings the condition of a disaster early warning information based on the large-screen image display screen of the present invention; but the present invention is not limited to embodiment; every foundation technical spirit of the present invention all falls in the protection range of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (3)
1. terminal equipment that shows empty feelings the condition of a disaster early warning information based on the large-screen image display screen is characterized in that: comprising:
One Channel Modulation demodulator is used for finishing the demodulation of reception signal or the modulation of transmitted signal;
One channel coding/decoding module is used for the signal after the signal after the demodulation or the modulation is carried out channel-decoding or chnnel coding;
One data encoding/decoding module is used for carrying out data decode or data encoding through the data after channel-decoding or the chnnel coding;
One the image control mold is used for image display panel is controlled;
One image-driven module is used for image display panel is carried out display driver;
One image display panel is used for display text and image information;
One microprocessor control module is used for Channel Modulation demodulator, channel coding/decoding module, data encoding/decoding module, panel operation interface module, simulated voice/data voice conversion module, digital alarm signal generator are controlled;
One panel operation interface module is used for carrying out panel operation and carries out the interface connection with being connected;
One simulated voice and data voice conversion module are used for digital audio signal is processed into analog signal;
One audio frequency power amplifier module is used for audio signal power is amplified;
One loud speaker is used for sending sound equipment;
One digital alarm signal generator is used for producing and storing all kinds of alarm acoustic signals;
One end of Channel Modulation demodulator is connected with radio-frequency antenna or wire message way, and the other end of Channel Modulation demodulator is connected with an end of channel coding/decoding module, and an again end of Channel Modulation demodulator is connected with the microprocessor control module; The other end of channel coding/decoding module is connected with an end of data encoding/decoding module, and an again end of channel coding/decoding module is connected with the microprocessor control module; The other end of data encoding/decoding module is connected with the data voice conversion module with simulated voice, an again end of data encoding/decoding module is connected with the microprocessor control module, and an output of data encoding/decoding module is connected with the input of the image control mold; The output of the image control mold is connected with the input of image-driven module; The output of image-driven module is connected with the input of image display panel; The output of panel operation interface module is connected to the microprocessor control module; The other end of simulated voice and data voice conversion module is connected with the microprocessor control module, and the output of simulated voice and data voice conversion module is connected to the input of audio frequency power amplifier module; The output of audio frequency power amplifier module is connected to loud speaker; The input of numeral alarm signal generator is connected with the microprocessor control module, and the output of digital alarm signal generator is connected to the input of audio frequency power amplifier module.
2. the terminal equipment that shows empty feelings the condition of a disaster early warning information based on the large-screen image display screen according to claim 1, it is characterized in that: described Channel Modulation demodulator is wire line MODEM or radio modem.
3. the terminal equipment that shows empty feelings the condition of a disaster early warning information based on the large-screen image display screen according to claim 1, it is characterized in that: described image display panel is LED dot matrix display screen or large-scale LCD display screen or 3D display screen.
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