CN104574826A - Communication early-warning machine - Google Patents
Communication early-warning machine Download PDFInfo
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- CN104574826A CN104574826A CN201310479686.2A CN201310479686A CN104574826A CN 104574826 A CN104574826 A CN 104574826A CN 201310479686 A CN201310479686 A CN 201310479686A CN 104574826 A CN104574826 A CN 104574826A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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Abstract
The invention relates to a communication early-warning machine which solves technical problems that existing communication early-warning machines are large in size, high in power consumption, low in integration level and incapable of setting warning priorities. The machine comprises a master control unit, a power module, a key processing unit, a GPRS/GSM (general packet radio service/global system for mobile communications) module, an audio mixing unit, a speech synthesis unit, an interphone module, a microphone processing unit, a recording and playback unit, a power amplification module and a frequency modulation transmission station, wherein the master control unit is provided with an SPI (serial peripheral interface), and the GPRS/GSM module, the speech synthesis unit and the recording and playback unit are connected with the SPI respectively; the audio mixing unit is connected with the GPRS/GSM module; the speech synthesis unit, the interphone module and the microphone processing unit are arranged between the audio mixing unit and the master control unit respectively; the recording and playback unit, the power amplification module and the frequency modulation transmission station are connected with the audio mixing unit respectively; the speech synthesis unit comprises an XFS4041A chip and an XFS4041B chip. The machine is widely applied to prevention and treatment engineering of water conservancy, meteorology, geological disasters and the like.
Description
Technical field
The present invention relates to a kind of prior-warning device, particularly relate to a kind of communication early warning plane.
Background technology
As everyone knows, in the Prevention Technique field of water conservancy, meteorology, geologic hazard, communication early warning plane goes out alarm signal as shifting to an earlier date collection analysis Data Concurrent, people are made to know potential contingent disaster in advance, thus people can take to prevent counter-measure accordingly, to avoid the person, property suffers damage.
But existing communication early warning plane exists, and volume is large, power consumption is large, integrated level is low, can not carry out the defect of alarm priority setting.
Summary of the invention
The present invention, in order to existing communication early warning plane volume is large, power consumption is large, integrated level is low, can not carry out the technical matters of alarm priority setting, provides that a kind of volume is little, power consumption is little, integrated level is high, can carry out the high performance communication early warning plane of alarm priority setting.
Technical scheme of the present invention is, a kind of communication early warning plane is provided, comprise main control unit, power module, keystroke handling unit, GPRS/GSM module, Audio mixing unit, phonetic synthesis unit, intercom module, microphone processing unit, record/playback unit, power amplifier module and FM transmission radio station, main control unit is provided with SPI interface, and GPRS/GSM module, phonetic synthesis unit are connected with SPI interface respectively with record/playback unit; Audio mixing unit and GPRS/GSM model calling, phonetic synthesis unit, intercom module and microphone processing unit are located between Audio mixing unit and main control unit respectively; Record/playback unit, power amplifier module are connected with Audio mixing unit respectively with FM transmission radio station;
Audio mixing unit is provided with the pretreatment unit, switch unit and the automatic electric-level processing unit that are linked in sequence successively;
Pretreatment unit is configured to the sound signal receiving the output of GPRS/GSM module, phonetic synthesis unit, intercom module, microphone processing unit and record/playback unit, and judges the priority of this sound signal;
Switch unit is configured to audio signal channel high for priority level to open;
Automatic electric-level processing unit is configured to automatically be opened by the power supply of power amplifier module when switch unit outputs signal.
Preferably, phonetic synthesis unit comprises XFS4041A chip and XFS4041B chip, and C1 to the C38 pin of XFS4041A chip is connected with C1 to the C38 pin of XFS4041B chip; C17 pin pull-up the 7th resistance of described XFS4041A chip is connected with voltage 3.3V, drop-down 8th resistance eutral grounding of C18 pin, drop-down 9th resistance eutral grounding of C19 pin, C20 pin pull-up the tenth resistance is connected with voltage 3.3V, and C21 pin pull-up the 11 resistance is connected with voltage 3.3V; Pull-up first resistance, the second resistance, the 3rd resistance, the 4th resistance are connected with voltage 3.3V respectively for the A0 pin of XFS4041A chip, A1 pin, WAKEUP0 pin, WAKEUP1 pin;
The DV18 pin of XFS4041A chip connects voltage 1.8V, XTAL1 pin is connected the first crystal oscillator with XTAL0 pin, RESET pin is by the 5th resistance eutral grounding, A0-AGND pin ground connection, A0-AV33 pin is connected with voltage 3.3V, the 3rd electric capacity is connected with between A0-AGND pin and A0-AV33 pin, A0_GND pin ground connection, A0_AV18 pin is connected with voltage 1.8V, A0_AREF pin, A0_AV18 pin are respectively by the 7th electric capacity, the 6th capacity earth, DGND pin ground connection, DV33 pin is connected with voltage 3.3V; A0_N pin connects the first inductance, and the first inductance connects the 4th electric capacity, and A0_P pin connects the second inductance, and the second inductance connects the 5th electric capacity; Node between first inductance and the 4th electric capacity is by the 9th capacity earth, and the node between the second inductance and the 5th electric capacity is by the 8th capacity earth;
The DGND pin ground connection of XFS4041B chip, DV33 pin is connected with voltage 3.3V.
Preferably, pretreatment unit comprises a LM2904 chip and the 2nd LM2904 chip, and the 1st pin of a LM2904 chip is connected with the 5th pin of the 2nd LM2904 chip, and the 1st pin of a LM2904 chip is by the 40 capacity earth; Ten three resistance, three ten eight electric capacity and three ten seven capacity earth of 2nd pin by being connected in series of the one LM2904 chip; 8th pin of the one LM2904 chip is connected with voltage 12V, and this voltage 12V passes through the 14 resistance and the 12 resistance eutral grounding of series connection, and the 43 Capacitance parallel connection is at described 12 resistance two ends; 3rd pin of a described LM2904 chip is connected with one end of the 12 resistance, the other end ground connection of described 12 resistance, and the 3rd pin connects the 14 resistance simultaneously, and the 43 Capacitance parallel connection is at described 12 resistance two ends; Be connected with the 15 resistance between 2nd pin of the one LM2904 chip and the 1st pin, the 39 Capacitance parallel connection is at the 15 resistance two ends; 7th pin of the 2nd LM2904 chip is by the 41 capacity earth, and the 16 resistance of series connection and the 42 Capacitance parallel connection are at the 41 electric capacity two ends, and the first diodes in parallel is at the 42 electric capacity two ends; 6th pin of the 2nd LM2904 chip is connected with the 7th pin.
Preferably, switch unit comprises DG409 chip, the 44 electric capacity and the 45 electric capacity; 14th pin of described DG409 chip is connected with voltage 12V, and this pin is by the 44 capacity earth simultaneously; By the 45 capacity earth after 9th pin of DG409 chip, the 10th pin, the 11st pin, the 12nd pin, the 13rd pin connect.
Preferably, automatic electric-level processing unit comprises SSM2167 chip, and the 1st pin ground connection of SSM2167 chip, is connected with the 48 electric capacity between the 2nd pin and the 4th pin; 3rd pin pull-up the 17 resistance of SSM2167 chip is connected with voltage 5V, and the 5th pin passes through the 47 electric capacity and the 46 capacity earth of series connection; 10th pin of SSM2167 chip, by the 49 capacity earth, is connected with voltage 5V simultaneously; 7th pin, the 8th pin of SSM2167 chip are connected with voltage 5V respectively by the 19 resistance, the 18 resistance; 6th pin of SSM2167 chip is by the 50 capacity earth.
Preferably, 12 resistance, 13 resistance, 14 resistance, 15 resistance, 16 resistance is value 100K Ω respectively, 10K Ω, 100K Ω, 100K Ω, 10K Ω, 37 electric capacity, 38 electric capacity, 39 electric capacity, 40 electric capacity, 41 electric capacity, 42 electric capacity, 43 electric capacity, 44 electric capacity, 45 electric capacity, 46 electric capacity, 47 electric capacity, 48 electric capacity, 49 electric capacity, 50 electric capacity is value 33pF respectively, 0.47 μ F, 33pF, 33pF, 33pF, 33pF, 10 μ F, 0.1 μ F, 0.1 μ F, 33pF, 0.1 μ F, 10 μ F, 0.1 μ F, 10 μ F.
The invention has the beneficial effects as follows, circuit structure integrated level is high, and the volume of whole device is little; Under the effect of Audio mixing unit, can alarm priority setting be carried out, make warning effect more flexibly effectively; Low power mode of operation, guarantees steady operation more than 2 hours after civil power power down; Applied widely, can be used for the prevention and cure project of water conservancy, meteorology, geologic hazard etc., and be equally applicable to school, the management of public place.
Further aspect of the present invention, by the description of following embodiment, is clearly recorded.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of Audio mixing unit;
Fig. 3 is the circuit theory diagrams of phonetic synthesis unit;
Fig. 4 is phonetic synthesis element circuit schematic diagram;
The circuit theory diagrams of Fig. 5 pretreatment unit;
Fig. 6 is the circuit theory diagrams of switch unit;
Fig. 7 is the circuit theory diagrams of automatic electric-level processing unit.
Reference numeral illustrates:
1. main control unit, 2. power module, 3. keystroke handling unit, 4.GPRS/GSM module, 5. Audio mixing unit, 6. phonetic synthesis unit, 7. intercom module, 8. microphone processing unit, 9. record/playback unit, 10. power amplifier module, 11. FM transmission radio station, 12. pretreatment units, 13. switch units, 14. automatic electric-level processing units, SPI is SPI serial line interface, R1 to R19 is that the first resistance is to the 19 resistance, C1 to C50 is that the first electric capacity is to the 50 electric capacity, D1 is the first diode, L1, L2, L3 is respectively the first inductance, second inductance, 3rd inductance, Y1 is the first crystal oscillator, U1 is XFS4041A chip, U2 is XFS4041B chip, U3a is a LM2904 chip, U3b is the 2nd LM2904 chip, U4 is DG409 chip, U5 is SSM2167 chip.
Embodiment
As shown in Figure 1, the present invention is provided with main control unit 1, power module 2, keystroke handling unit 3, GPRS/GSM module 4, Audio mixing unit 5, phonetic synthesis unit 6, intercom module 7, microphone processing unit 8, record/playback unit 9, power amplifier module 10 and FM transmission radio station 11.Main control unit 1 is provided with high performance technical grade 16/32 bit walk processor, main control unit 1 is also provided with the SPI serial line interface be connected with central processing unit.
GPRS/GSM module 4 is connected with SPI interface, and phonetic synthesis unit 6 is connected with SPI interface, and record/playback unit 9 is connected with SPI interface.GPRS/GSM module 4 is configured to complete note and telephone relation function, makes this device have long-range (mobile and fixing) warning by telephone, short message call alarm and GPRS data and turns phonic warning.Phonetic synthesis unit 6 can complete the function of short message audio alert.Record/playback unit 9 can carry out record/playback to phone, intercom, microphone alarm voice.
Power module 2 is connected with main control unit 1, and power module 2 is configured to provide power supply to whole device.
Keystroke handling unit 3 is connected with main control unit 1, and keystroke handling unit 3 is configured to process external key input signal when man-machine interaction.
Phonetic synthesis unit 6, intercom module 7 are connected with main control unit 1 respectively with the input end of microphone processing unit 8, and output terminal is connected with Audio mixing unit 5 respectively.Record/playback unit 9, power amplifier module 10 are connected with Audio mixing unit 5 with FM transmission radio station 11.Audio mixing unit 5 is connected with GPRS/GSM module 4.
Intercom module 7 uses the transformation of existing intercom to form, and completes intercommunication receiving function.Microphone processing unit 8 can complete microphone small-signal is amplified, noise reduction process, realize propaganda directed to communicate alarm, preset information of this locality and turn phonic warning, preset MP3 audible alarm, voice band line input alarm.Audio mixing unit 5 can complete the function switched various alarm voice passage.Record/playback unit 9 can complete the function of phone, intercom, microphone alarm voice being carried out to record/playback.Power amplifier module 10 can complete the power amplification of alarm voice, drives loudspeaker to broadcast.
FM transmission radio station 11 with can carry out phonic warning broadcast under the control of main website main frame, can realize the alarm of FM frequency modulation, main website main frame has reserved the control interface and audio interface that mate with FM transmission radio station 11.
As shown in Figure 2, further illustrate the present invention, Audio mixing unit 5 is provided with pretreatment unit 12, switch unit 13 and automatic electric-level processing unit 14, and switch unit 13 is connected with pretreatment unit 12, and automatic electric-level processing unit 14 is connected with switch unit 13.Pretreatment unit 12 adopts the circuit be made up of LM2901 voltage comparator, and switch unit 13 adopts the circuit be made up of analog switch CD4051, and automatic electric-level processing unit 14 adopts the circuit be made up of SSM2167 amplifier.
Audio mixing unit 5 when GPRS/GSM module 4, phonetic synthesis unit 6, intercom module 7, microphone processing unit 8, the input of record/playback unit 9 multiple voice signal, can ensure that often kind of voice messaging is play in order, is unlikely to cause confusion.
Pretreatment unit 12 can judge the priority of the sound signal of input.
Audio signal channel high for priority level is opened by switch unit 13, allows sound signal output on power amplifier.
The effect of automatic electric-level processing unit 14 is, when switch unit 13 has sound signal to export, the power supply of power amplifier is opened automatically, ensures the reliably working of power amplifier.
Power amplifier module 10 preferred employing integrated level is high, the TDA7388 amplifier of super low-power consumption, working stability.
The output signal of the output signal of intercom module 7, the output signal of phonetic synthesis unit 6 and microphone processing unit 8 sends pretreatment unit 12 to and processes through switch unit 13 and automatic electric-level processing unit 14 successively more after treatment.
The circuit theory diagrams of phonetic synthesis unit 6 as shown in Figure 3 and Figure 4, it comprises XFS4041A chip U1 and XFS4041B chip U2, and C1 to the C38 pin of XFS4041A chip U1 is connected with C1 to the C38 pin of XFS4041B chip U2; C17 pin pull-up the 7th resistance R7 of XFS4041A chip U1 is to voltage 3.3V, the drop-down 8th resistance R8 ground connection of C18 pin, the drop-down 9th resistance R9 ground connection of C19 pin, C20 pin pull-up the tenth resistance R10 is to voltage 3.3V, C21 pin pull-up the 11 resistance R11 to voltage 3.3V; The A0 pin of XFS4041A chip U1, A1 pin, WAKEUP0 pin, WAKEUP1 pin distinguish pull-up first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4 to voltage 3.3V.
The DV18 pin of XFS4041A chip U1 connects voltage 1.8V, XTAL1 pin is connected the first crystal oscillator Y1 with XTAL0 pin, RESET pin is by the 5th resistance R5 ground connection, A0-AGND pin ground connection, A0-AV33 pin meets voltage 3.3V, the 3rd electric capacity C3 is connected with between A0-AGND pin and A0-AV33 pin, A0_GND pin ground connection, A0_AV18 pin connects voltage 1.8V, A0_AREF pin, A0_AV18 pin are respectively by the 7th electric capacity C7, the 6th electric capacity C6 ground connection, DGND pin ground connection, DV33 pin connects voltage 3.3V; Audio output is that A0_N and A0_P, A0_N pin connects the first inductance L 1, first inductance L 1 and connects the 4th electric capacity C4, and A0_P pin connects the second inductance L 2, second inductance L 2 and connects the 5th electric capacity C5; Node between first inductance L 1 and the 4th electric capacity C4 is by the 9th electric capacity C9 ground connection, and the node between the second inductance L 2 and the 5th electric capacity C5 is by the 8th electric capacity C8 ground connection.
The DGND pin ground connection of XFS4041B chip U2, DV33 pin meets voltage 3.3V.
Pretreatment unit 12 as shown in Figure 5, comprise a LM2904 chip U3a and the 2nd LM2904 chip U3b, 1st pin of the one LM2904 chip U3a is connected with the 5th pin of the 2nd LM2904 chip U3b, and the 1st pin of a LM2904 chip U3a is by the 40 electric capacity C40 ground connection; 2nd pin of the one LM2904 chip U3a is connected external input signal by the 13 resistance R13 of serial connection with the 38 electric capacity C38, and the 38 electric capacity C38 is by the 37 electric capacity C37 ground connection; 8th pin of the one LM2904 chip U3a meets voltage 12V, this voltage 12V passes through the 14 resistance R14 and the 12 resistance R12 ground connection of series connection, 43 electric capacity C43 is connected in parallel on the 12 resistance R12 two ends, and the 3rd pin of a LM2904 chip U3a is connected with the node between the 14 resistance R14, the 12 resistance R12; Be connected with the 15 resistance R15 between 2nd pin of the one LM2904 chip U3a and the 1st pin of a LM2904 chip U3a, the 39 electric capacity C39 is connected in parallel on the 15 resistance R15 two ends; 7th pin of the 2nd LM2904 chip U3b is by the 41 electric capacity C41 ground connection, 16 resistance R16 and the 42 electric capacity C42 of series connection are connected in parallel on the 41 electric capacity C41 two ends, first diode D1 is connected in parallel on the 42 electric capacity C42 two ends, the plus earth of the first diode D1; 6th pin of the 2nd LM2904 chip U3b is connected with the 7th pin.
Draw through repetition test, when the 12 resistance R12, the 13 resistance R13, the 14 resistance R14, the 15 resistance R15, the 16 resistance R16 difference value 100K Ω, 10K Ω, 100K Ω, 100K Ω, 10K Ω, 37 electric capacity C37, the 38 electric capacity C38, the 39 electric capacity C39, the 40 electric capacity C40, the 41 electric capacity C41, the 42 electric capacity C42, the 43 electric capacity C43 value 33pF, 0.47 μ F, 33pF, 33pF, 33pF, 33pF, 10 μ F respectively, the performance of this unit is best in this case.
Switch unit 13 as shown in Figure 6, comprise DG409 chip U4, the 44 electric capacity C44 and the 45 electric capacity C45, DG409 chip U4 the 14th pin meets voltage 12V, this 12V voltage, by the 44 electric capacity C44 ground connection, passes through the 45 electric capacity C45 ground connection after the 9th, 10,11,12,13 of DG409 chip U4 connects.Draw through repetition test, the 44 electric capacity C44 value is 0.1 μ F, and when the 45 electric capacity C45 is 0.1 μ F, the performance of this unit is best.
The output signal MIC-OUT of microphone processing unit 8 sends to the 4th pin of DG409 chip U4 after pretreatment unit 12 processes, the output signal Radio of the audio output of phonetic synthesis unit 6 is by sending to the 5th pin of DG409 chip U4 after processing unit 12 process, the output signal Speech signal of intercom module 7 sends to the 6th pin of DG409 chip U4, the output signal FM-Receive signal of record/playback unit 9 after pretreatment unit 12 processes, send to the 7th pin of DG409 chip U4 after pretreatment unit 12 processes.8th pin of DG409 chip U4 is the output signal end of this switch unit 13 circuit, and this output signal AUDIO_OUT_P sends to automatic electric-level processing unit 14.
As shown in Figure 7, automatic electric-level processing unit 14 comprises SSM2167 chip U5, and the 1st pin ground connection of SSM2167 chip U5, is connected with the 48 electric capacity C48 between the 2nd pin and the 4th pin; 3rd pin pull-up the 17 resistance R17 connects 5V voltage, and the 5th pin passes through the 47 electric capacity C47 and the 46 electric capacity C46 ground connection of series connection, and the node between the 47 electric capacity C47 and the 46 electric capacity C46 connects the 8th pin of DG409 chip U4; 10th pin of SSM2167 chip U5, by the 49 electric capacity C49 ground connection, connects 5V voltage simultaneously; 7th pin, the 8th pin meet voltage 5V respectively by the 19 resistance R19, the 18 resistance R18, and the 7th pin is by the 50 electric capacity C50 ground connection; 9th pin is as the output terminal of this unit, and it is connected with the input end of power amplifier module 10.
Draw through repetition test, when 46 electric capacity C46, the 47 electric capacity C47, the 48 electric capacity C48, the 49 electric capacity C49, the 50 electric capacity C50 value are respectively 33pF, 0.1 μ F, 10 μ F, 0.1 μ F, 10 μ F, the performance of this unit is best.
The above, only to the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Every in claim limited range of the present invention, any amendment made, equivalent replacement, improvement etc., all should within protection scope of the present invention.
Claims (6)
1. a communication early warning plane, comprise main control unit, power module, keystroke handling unit, GPRS/GSM module, Audio mixing unit, phonetic synthesis unit, intercom module, microphone processing unit, record/playback unit, power amplifier module and FM transmission radio station, described main control unit is provided with SPI interface, and described GPRS/GSM module, described phonetic synthesis unit are connected with described SPI interface respectively with described record/playback unit; Described Audio mixing unit and described GPRS/GSM model calling, described phonetic synthesis unit, described intercom module and described microphone processing unit are located between described Audio mixing unit and described main control unit respectively; Described record/playback unit, described power amplifier module are connected with described Audio mixing unit respectively with described FM transmission radio station; It is characterized in that:
Described Audio mixing unit is provided with the pretreatment unit, switch unit and the automatic electric-level processing unit that are linked in sequence successively;
Described pretreatment unit is configured to the sound signal receiving the output of described GPRS/GSM module, described phonetic synthesis unit, described intercom module, described microphone processing unit and described record/playback unit, and judges the priority of this sound signal;
Described switch unit is configured to audio signal channel high for priority level to open;
Described automatic electric-level processing unit is configured to automatically be opened by the power supply of described power amplifier module when described switch unit output signal.
2. communication early warning plane according to claim 1, is characterized in that:
Described phonetic synthesis unit comprises XFS4041A chip and XFS4041B chip, and C1 to the C38 pin of described XFS4041A chip is connected with C1 to the C38 pin of described XFS4041B chip; C17 pin pull-up the 7th resistance of described XFS4041A chip is connected with voltage 3.3V, drop-down 8th resistance eutral grounding of C18 pin, drop-down 9th resistance eutral grounding of C19 pin, C20 pin pull-up the tenth resistance is connected with voltage 3.3V, and C21 pin pull-up the 11 resistance is connected with voltage 3.3V; Pull-up first resistance, the second resistance, the 3rd resistance, the 4th resistance are connected with voltage 3.3V respectively for the A0 pin of described XFS4041A chip, A1 pin, WAKEUP0 pin, WAKEUP1 pin;
The DV18 pin of described XFS4041A chip connects voltage 1.8V, XTAL1 pin is connected the first crystal oscillator with XTAL0 pin, RESET pin is by the 5th resistance eutral grounding, A0-AGND pin ground connection, A0-AV33 pin is connected with voltage 3.3V, the 3rd electric capacity is connected with between A0-AGND pin and A0-AV33 pin, A0_GND pin ground connection, A0_AV18 pin is connected with voltage 1.8V, A0_AREF pin, A0_AV18 pin are respectively by the 7th electric capacity, the 6th capacity earth, DGND pin ground connection, DV33 pin is connected with voltage 3.3V; A0_N pin connects the first inductance, and described first inductance connects the 4th electric capacity, and A0_P pin connects the second inductance, and described second inductance connects the 5th electric capacity; Node between described first inductance and described 4th electric capacity is by the 9th capacity earth, and the node between described second inductance and described 5th electric capacity is by the 8th capacity earth;
The DGND pin ground connection of described XFS4041B chip, DV33 pin is connected with voltage 3.3V.
3. communication early warning plane according to claim 2, is characterized in that:
Described pretreatment unit comprises a LM2904 chip and the 2nd LM2904 chip, and the 1st pin of a described LM2904 chip is connected with the 5th pin of described 2nd LM2904 chip, and the 1st pin of a described LM2904 chip is by the 40 capacity earth; Ten three resistance, three ten eight electric capacity and three ten seven capacity earth of 2nd pin by being connected in series of a described LM2904 chip; 8th pin of a described LM2904 chip is connected with voltage 12V, and this voltage 12V passes through the 14 resistance and the 12 resistance eutral grounding of series connection, and the 43 Capacitance parallel connection is at described 12 resistance two ends; 3rd pin of a described LM2904 chip is connected with one end of the 12 resistance, the other end ground connection of described 12 resistance, and the 3rd pin connects the 14 resistance simultaneously, and the 43 Capacitance parallel connection is at described 12 resistance two ends; Be connected with the 15 resistance between 2nd pin of a described LM2904 chip and the 1st pin, the 39 Capacitance parallel connection is at described 15 resistance two ends; 7th pin of described 2nd LM2904 chip is by the 41 capacity earth, and the 16 resistance of series connection and the 42 Capacitance parallel connection are at described 41 electric capacity two ends, and the first diodes in parallel is at described 42 electric capacity two ends; 6th pin of described 2nd LM2904 chip is connected with the 7th pin.
4. communication early warning plane according to claim 3, is characterized in that:
Described switch unit comprises DG409 chip, the 44 electric capacity and the 45 electric capacity; 14th pin of described DG409 chip is connected with voltage 12V, and this pin is by described 44 capacity earth simultaneously; By described 45 capacity earth after 9th pin of described DG409 chip, the 10th pin, the 11st pin, the 12nd pin, the 13rd pin connect.
5. communication early warning plane according to claim 4, is characterized in that:
Described automatic electric-level processing unit comprises SSM2167 chip, and the 1st pin ground connection of described SSM2167 chip, is connected with the 48 electric capacity between the 2nd pin and the 4th pin; 3rd pin pull-up the 17 resistance of described SSM2167 chip is connected with voltage 5V, and the 5th pin passes through the 47 electric capacity and the 46 capacity earth of series connection; 10th pin of described SSM2167 chip, by the 49 capacity earth, is connected with voltage 5V simultaneously; 7th pin, the 8th pin of described SSM2167 chip are connected with voltage 5V respectively by the 19 resistance, the 18 resistance; 6th pin of described SSM2167 chip is by the 50 capacity earth.
6. communication early warning plane according to claim 5, is characterized in that:
Described 12 resistance, 13 resistance, 14 resistance, 15 resistance, 16 resistance is value 100K Ω respectively, 10K Ω, 100K Ω, 100K Ω, 10K Ω, described 37 electric capacity, 38 electric capacity, 39 electric capacity, 40 electric capacity, 41 electric capacity, 42 electric capacity, 43 electric capacity, 44 electric capacity, 45 electric capacity, 46 electric capacity, 47 electric capacity, 48 electric capacity, 49 electric capacity, 50 electric capacity is value 33pF respectively, 0.47 μ F, 33pF, 33pF, 33pF, 33pF, 10 μ F, 0.1 μ F, 0.1 μ F, 33pF, 0.1 μ F, 10 μ F, 0.1 μ F, 10 μ F.
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| CN201310479686.2A CN104574826A (en) | 2013-10-14 | 2013-10-14 | Communication early-warning machine |
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| CN201310479686.2A CN104574826A (en) | 2013-10-14 | 2013-10-14 | Communication early-warning machine |
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| CN105471536A (en) * | 2015-12-31 | 2016-04-06 | 苏州华启智能科技有限公司 | Broadcast system control circuit |
| CN107201729A (en) * | 2017-07-12 | 2017-09-26 | 淮阴师范学院 | Portable acoustic photoelectricity roadblock sign |
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| US20050246408A1 (en) * | 2003-02-26 | 2005-11-03 | Intexact Technologies Limited | Integrated programmable system for controlling the operation of electrical and/or electronic appliances of a premises |
| CN1593982A (en) * | 2003-09-12 | 2005-03-16 | 何建武 | Field operation political work vehicle |
| CN2770250Y (en) * | 2005-01-28 | 2006-04-05 | 陆锡彬 | Vehicular hand-free communicating and audio-frequency transmitting apparatus for mobile telephone |
| CN201936600U (en) * | 2011-02-28 | 2011-08-17 | 山东大学 | Non-specific person voice recognition and voice synthesis device based on special voice chip |
| CN202110635U (en) * | 2011-07-29 | 2012-01-11 | 北京国信华源科技有限公司 | Flood control prewarning machine |
| CN202488470U (en) * | 2012-02-03 | 2012-10-10 | 北京浩天中胜科技有限公司 | Wireless flood prevention early warning broadcast system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105471536A (en) * | 2015-12-31 | 2016-04-06 | 苏州华启智能科技有限公司 | Broadcast system control circuit |
| CN105471536B (en) * | 2015-12-31 | 2018-06-22 | 苏州华启智能科技有限公司 | A kind of broadcast system control circuit |
| CN107201729A (en) * | 2017-07-12 | 2017-09-26 | 淮阴师范学院 | Portable acoustic photoelectricity roadblock sign |
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Application publication date: 20150429 |