CN201599061U - Coal mine safety voice prompter adopting digital circuit - Google Patents
Coal mine safety voice prompter adopting digital circuit Download PDFInfo
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- CN201599061U CN201599061U CN2009202205693U CN200920220569U CN201599061U CN 201599061 U CN201599061 U CN 201599061U CN 2009202205693 U CN2009202205693 U CN 2009202205693U CN 200920220569 U CN200920220569 U CN 200920220569U CN 201599061 U CN201599061 U CN 201599061U
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Abstract
The utility model provides a coal mine safety voice prompter adopting a digital circuit, which is mainly applied for playing operating rules, directing the way of an underground tunnel, voice-broadcasting analog quantity and digital quantity signals or playing temporary notices as well as voice cautions. With high output power, loud voice and low power consumption, a dual-horn loudspeaker which adopts a high-capacity voice circuit not only can play stored information in a segmented manner, but also can play the operating rules, thereby reminding people to strengthen safety awareness and keep main ideas of safety in mind, reducing illegal accidents, promoting safety production of a coal mine, enhancing the safety awareness of staffs, and increasing economic benefits. Therefore, the coal mine safety voice prompter is of great significance.
Description
Technical field:
The utility model belongs to infra-red detection and Digital Signal Processing, and the voice processing technology field is a kind ofly can satisfy the automatic language sounding device down that imposes a condition.
Background technology:
At present, this device that industrial and mining enterprises use, there are many deficiencies, owing to adopt the triggering mode of speech processing circuit single, and adopt operational amplifier or directly use the D flip-flop circuit, be subjected to the site environment Temperature Influence big, speech processing circuit and power amplifier use and cause with a kind of power supply that the anti-electromagnetic wave jamming performance is poor, sensitivity is low, and it is serious to fail to report phenomenon.
Summary of the invention:
The utility model adopts digital processing unit, dual power supply, the output of even numbers tube loudspeaker, circuit design is simple, is not subjected to influence of temperature change, and antijamming capability is strong, highly sensitive, sound is loud and clear, and the complete machine standby current is little, and is energy-conservation, not only can use and point out in mine safety, operational procedure is play, and can use the voice fault alarm of the working state signal of other equipment as triggering signal realization equipment, can realize the report of analog quantity digitize voice.
The scheme that the utility model provides for achieving the above object is as follows:
Adopt infrared human body induction input probe, infrared process chip, digital microprocessor, the digital speech chip, power amplifier 1, power amplifier 2, loudspeaker, the expansion input port constitutes.
It is characterized by infrared human body induction input probe is connected with infrared process chip 14 pin, by infrared process chip 2 pin output signals through output transistor, be connected to microprocessor and sound circuit, sound circuit output two paths of signals amplifies after horn speaker output through power amplifier.Connect power supply during use and enter automatic detection operations state after 3 seconds, movable in its investigative range as personnel, infrared probe produces signal, and Q1 connects speech processor U2 simultaneously and plays voice messaging to microprocessor 16 pin.When alarm signal is not that microprocessor 16 pin are high level when partly being produced by infrared acquisition, then processor makes RB0S-RB5 produce address signal, plays the segmented content among the U2.Segmented content and alarm content scene can be recorded.The utility model, debugging is simple, the reliability height, two horn speakers are installed dorsad, the loud and clear little power consumption of sound, energy-saving effect is obvious.
Description of drawings:
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is a schematic diagram of the present utility model.
As described in Figure 2:
By concrete enforcement the utility model is elaborated with reference to the accompanying drawings:
Voice prompting device comprises that infrared human body induction input probe (Q1), infrared process chip (IC3), digital microprocessor (U1), digital speech chip (U2), power amplifier 1 (IC1), power amplifier 2 (IC2), loudspeaker (Speaker 1,2), expansion input port (IN2) constitute.It is characterized by infrared human body induction input probe (Q1) is connected with infrared process chip (IC3) 14 pin, by infrared process chip (IC3) 2 pin output signals through output transistor (Q2), be connected to microprocessor (U1) and sound circuit (U2), sound circuit (U2) output two paths of signals amplifies after horn speaker (Speaker1,2) output through power amplifier (IC1, IC2).
The specific embodiment:
The enforcement of voice prompting device realizes by following technical proposal among Fig. 2:
1 pin of infrared human body induction input probe (Q1) connects power supply, 3 pin ground connection, 2 pin output to 14 pin (IN+) of infrared process chip (IC3), 2 pin of infrared process chip (IC3) output to efferent duct Q2, after amplifying, Q2 outputs to digital microprocessor (U1), wherein SW4 is maintenance and functional select switch, the fragment playing function that can utilize SW4 to produce round-the-clock broadcast or select to store in the digital speech chip (U2), and default conditions are to disconnect.The A2-A7 that the address code of the RB1-5 of U1 output is input to digital speech chip (U2) realizes the multicast function that selects of digital speech chip (U2), the moving control button merit of 23,24,25 pin catcher of digital speech chip (U2) realizes the function of whole broadcasts and recording, and U1 realizes fragment broadcast and recording function by SW5-8 control.Adopting the 4.8v lithium battery is microprocessor power supply, microprocessor misoperation when preventing the power supply shakiness.
The external circuit of U1 is typical single chip circuit, adopts the crystal oscillator of 4MHz, the 5v supply voltage.The RC0-RC7 of U1 is connected to the IN2 ECP Extended Capabilities Port.SW4 is the reset button of U1, digital speech chip (U2) 16 pin, 28 pin connect power supply 12,13 pin ground connection, 25 pin sending and receiving optical diodes are record indicator, 17 pin meet MIC through capacitance, 19 pin are AGC, output to resistance bridge by 14 pin (SP+), 15 pin (SP-), be input to power amplifier 1 (IC1), power amplifier 2 (IC2) after the dividing potential drop respectively, IC1, IC2 adopt LA4255a chip 1 pin input 2,3 pin ground connection, 5 pin connect power supply, and the output of 4 pin connects small-sized horn speaker (Speaker 1,2) output through output capacitance.
Element is selected: U1 is a PIC16F87 type microprocessor
U2 is an ISD1420 type pronounciation processing chip
IC1, IC2 are the LA4255A power discharging integrated block
IC3 is the infrared process chip of BIS0001
Q1 is Infrared Detectors 200-B
Resistance is all selected the 1/8W metalfilmresistor for use
Claims (3)
1. safety of coal mines voice prompting device that adopts digital circuit, it is characterized in that: voice prompting device comprises infrared human body induction input probe (Q1), infrared process chip (IC3), digital microprocessor (U1), digital speech chip (U2), power amplifier 1 (IC1), power amplifier 2 (IC2), (Speaker 1 for loudspeaker, 2), expansion input port (IN2) constitutes, wherein the RB0D of digital microprocessor (U1) is that address wire is connected with the address wire of digital speech chip (U2) to RB7, wherein RB6 is the multiplexing address line, accepts to amplify through Q2 from infrared process chip (IC3) 2 pin the signal of output.1 pin of infrared human body induction input probe (Q1) connects power supply, 3 pin ground connection, 2 pin output to 14 pin (IN+) of infrared process chip (IC3), 2 pin of infrared process chip (IC3) output to efferent duct Q2, after amplifying, Q2 outputs to digital microprocessor (U1), wherein SW4 is maintenance and functional select switch, the fragment playing function that can utilize SW4 to produce round-the-clock broadcast or select to store in the digital speech chip (U2), default conditions are to disconnect, the A2-A7 that the address code of the RB1-5 of U1 output is input to digital speech chip (U2) realizes the multicast function that selects of digital speech chip (U2), 23 of digital speech chip (U2), 24, the moving control button merit of 25 pin catcher realizes the function of all broadcasts and recording, U1 realizes fragment broadcast and recording function by SW5-8 control, adopting the 4.8v lithium battery is microprocessor power supply, microprocessor misoperation when preventing the power supply shakiness, the external circuit of U1 is typical single chip circuit, adopts the crystal oscillator of 4MHz, the 5v supply voltage.The RC0-RC7 of U1 is connected to the IN2 ECP Extended Capabilities Port.SW4 is the reset button of U1, digital speech chip (U2) 16 pin, 28 pin connect power supply 12,13 pin ground connection, 25 pin sending and receiving optical diodes are record indicator, 17 pin meet MIC through capacitance, 19 pin are AGC, output to resistance bridge by 14 pin (SP+), 15 pin (SP-), be input to power amplifier 1 (IC1), power amplifier 2 (IC2) after the dividing potential drop respectively, IC1, IC2 adopt LA4255a chip 1 pin input 2,3 pin ground connection, 5 pin connect power supply, and the output of 4 pin connects small-sized horn speaker (Speaker1,2) output through output capacitance.
2. a kind of safety of coal mines voice prompting device that adopts digital circuit according to claim 1, it is characterized in that: infrared human body induction input probe (Q1) is connected with infrared process chip (IC3) 14 pin, by infrared process chip (IC3) 2 pin output signals through output transistor (Q2), be connected to microprocessor (U1) and sound circuit (U2), sound circuit (U2) output two paths of signals amplifies after two small-sized horn speakers (Speaker1,2) output through power amplifier (IC1, IC2).
3. a kind of safety of coal mines voice prompting device that adopts digital circuit according to claim 1 is characterized in that: the output two paths of signals amplifies after two horn speakers (Speaker1,2) output through power amplifier (IC1, IC2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202205693U CN201599061U (en) | 2009-10-30 | 2009-10-30 | Coal mine safety voice prompter adopting digital circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202205693U CN201599061U (en) | 2009-10-30 | 2009-10-30 | Coal mine safety voice prompter adopting digital circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599061U true CN201599061U (en) | 2010-10-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202205693U Expired - Fee Related CN201599061U (en) | 2009-10-30 | 2009-10-30 | Coal mine safety voice prompter adopting digital circuit |
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| Country | Link |
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| CN (1) | CN201599061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112738690A (en) * | 2020-12-28 | 2021-04-30 | 容大合众(厦门)科技集团股份公司 | Voice broadcast signal interference suppression circuit and interference suppression method |
-
2009
- 2009-10-30 CN CN2009202205693U patent/CN201599061U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112738690A (en) * | 2020-12-28 | 2021-04-30 | 容大合众(厦门)科技集团股份公司 | Voice broadcast signal interference suppression circuit and interference suppression method |
| CN112738690B (en) * | 2020-12-28 | 2022-10-25 | 容大合众(厦门)科技集团股份公司 | Voice broadcast signal interference suppression circuit and interference suppression method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20121030 |