CN203603982U - Dot-matrix type multi-lamp-site mining explosive-proof and intrinsic safety signal machine - Google Patents

Dot-matrix type multi-lamp-site mining explosive-proof and intrinsic safety signal machine Download PDF

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Publication number
CN203603982U
CN203603982U CN201320777644.2U CN201320777644U CN203603982U CN 203603982 U CN203603982 U CN 203603982U CN 201320777644 U CN201320777644 U CN 201320777644U CN 203603982 U CN203603982 U CN 203603982U
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China
Prior art keywords
intrinsic safety
microprocessor
dot matrix
unit
proof
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Expired - Lifetime
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CN201320777644.2U
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Chinese (zh)
Inventor
魏臻
鲍红杰
陆阳
徐伟
胡敏
陈雄
邢军伟
彭磊
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Hefei Gocom Information & Technology Co Ltd
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Hefei Gocom Information & Technology Co Ltd
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Abstract

The utility model provides a dot-matrix type multi-lamp-site mining explosive-proof and intrinsic safety signal machine which comprises a microprocessor, a code address generating unit, a unipolarity serial asynchronous decoding unit, a frequency amount output unit and a splicable LED dot-matrix drive unit. The code address generating unit and the unipolarity serial asynchronous decoding unit are connected with the input end of the microprocessor, the frequency amount output unit is connected with the output end of the microprocessor, and the input end of the splicable LED dot-matrix drive unit is connected with the output end of the microprocessor. Through the splicable LED dot-matrix drive unit, display units can be spliced according to needs to form the multi-lamp-site signal machine or a word display screen, so that the using range of the signal machine is expanded, and device investment is saved.

Description

A kind of many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine
Technical field
The utility model relates to mining signal machine technology field, specifically a kind of many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine.
Background technology
At present, although mining signal machine brand is numerous, function, display graphics are comparatively single, are mostly arranged in a combination by permanent order by light emitting diode or light-emitting block, can only show fixing simple graph, have limited the scope of application of semaphore.While particularly carrying out multi-direction indication in intersection, the semaphore of multiple demonstration different graphics need to be installed, if and to show the short notice information issuing, and also additionally need to words display screen be installed in the required part such as parking lot, key crossing, increase equipment investment.
Utility model content
The purpose of this utility model is to provide many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine that a kind of display unit is sliceable, have the signal demonstration of many lamps position and word demonstration.
The technical solution of the utility model is:
A kind of many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine, comprise microprocessor, respectively the address generation unit that is connected with the input of microprocessor and unipolarity asynchronous serial decoding unit and the frequency quantity output unit being connected with the output of microprocessor, also comprise sliceable LED dot matrix driver element, the input of described sliceable LED dot matrix driver element is connected with the output of microprocessor.
Described many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine, described sliceable LED dot matrix driver element comprises that 5-24 decoding circuit and string turn and register circuit.
Described many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine, described address generation unit comprises two 8421 rotary coding switch, described unipolarity asynchronous serial decoding unit comprises decoding chip, code selection switch and isolation optocoupler, and described frequency quantity output unit comprises pwm circuit and isolation optocoupler.
Described many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine, also comprise failure safe pilot unit, the input of described failure safe pilot unit is connected with the output of microprocessor, and the output of described failure safe pilot unit is connected with the input of sliceable LED dot matrix driver element; Described failure safe pilot unit comprises microprocessor condition monitoring circuit, signal generating circuit and multichannel selection circuit.
Described many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine, also comprises buzzer driver element, and the input of described buzzer driver element is connected with the output of microprocessor, and the output of described buzzer driver element is connected with buzzer; Described buzzer driver element comprises booster circuit and current amplification circuit.
Described many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine, also comprise band isolation RS-485 communications interface unit, described band isolation RS-485 communications interface unit is connected by UART interactive interfacing with microprocessor, and described band isolation RS-485 communications interface unit is made up of the RS485 chip of charged isolation and signal isolation.
Described many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine, also comprises 2.4GHz radio-cell, and described 2.4GHz radio-cell is connected by SPI interactive interfacing with microprocessor, and described 2.4GHz radio-cell is selected 2.4GHz radio frequency chip.
Described many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine, also comprises external reset unit, and described external reset unit is connected alternately with microprocessor, and described external reset unit comprises watchdog circuit and key press detecting circuit.
Described many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine; also comprise intrinsic safety electric source unit; described intrinsic safety electric source unit comprises AC-DC power module and dual overcurrent-overvoltage protecting circuit, provides working power on the spot non-down-hole high pressure intrinsic safety AC power being converted to intrinsic safety electric source for semaphore.
As shown from the above technical solution, the utility model, by sliceable LED dot matrix driver element is set, can splice that display unit form many lamps position semaphore or words display screen according to demand, thereby expands the scope of application of semaphore, saves equipment investment.
Preferably, by failure safe pilot unit is set, in the time there is communication failure or microprocessor fault, can show fault guided mode, guarantee traffic safety.
Preferably, by buzzer driver element is set, in the time there is communication failure or microprocessor fault, can control buzzer call, carry out auditory tone cues.
Preferably, by band isolation RS-485 communications interface unit is set, can pass through the external communication of RS485 bus, the equipment of being convenient to merges.
Preferably, by 2.4GHz radio-cell is set, can receives 2.4GHz wireless data and be uploaded to host computer, the equipment of being convenient to merges.
Preferably, by external reset unit is set, can reset to microprocessor by button and microprocessor program fault be detected time, it be resetted.
Preferably, by intrinsic safety electric source unit is set, can on the spot non-down-hole high pressure intrinsic safety AC power be converted to intrinsic safety electric source to microprocessor and the power supply of other unit, without laying in addition power line to introduce intrinsic safety electric source, reduce equipment investment and construction cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment.
The specific embodiment
Further illustrate the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine, comprises microprocessor 1, intrinsic safety electric source unit 2, external reset unit 3, address generation unit 4, failure safe pilot unit 5, sliceable LED dot matrix driver element 6, band isolation RS-485 communications interface unit 7, unipolarity asynchronous serial decoding unit 8, frequency quantity output unit 9,2.4GHz radio-cell 10 and buzzer driver element 11.
The output of the output of address generation unit 4 and unipolarity asynchronous serial decoding unit 8 is all connected with the input of microprocessor 1; The output of microprocessor 1 is connected with input, the input of frequency quantity output unit 9 and the input of buzzer driver element 11 of the input of failure safe pilot unit 5, sliceable LED dot matrix driver element 6 respectively; The input/output terminal of microprocessor 1 is connected with the input/output terminal of external reset unit 3; The input/output terminal of microprocessor 1 is connected with the input/output terminal of band isolation RS-485 communications interface unit 7 by UART interface; The input/output terminal of microprocessor 1 is connected with the input/output terminal of 2.4GHz radio-cell 10 by SPI interface; The output of failure safe pilot unit 5 is connected with the input of sliceable LED dot matrix driver element 6.
Operating principle of the present utility model:
Intrinsic safety electric source unit 2 is realized by AC-DC power module and dual overcurrent-overvoltage protecting circuit, can on the spot non-down-hole high pressure intrinsic safety AC power be converted to intrinsic safety electric source to microprocessor 1 and other all unit power supply.
Failure safe pilot unit 5 selects circuit to realize by communication and running state of programs testing circuit, signal generating circuit and the multichannel of microprocessor 1, in the time there is communication failure or microprocessor fault, produce corresponding signal to sliceable LED dot matrix driver element 6, make it show representation for fault state.Sliceable LED dot matrix driver element 6 turns by 5-24 decoding circuit and string and register circuit is realized, LED dot matrix 24 row are lined by line scan and follow-up splicing cascade, can be according to actual needs, splicing composition many lamps position semaphore carries out signal designation or composition words display screen shows the information that host computer sends, and has the green three kinds of Show Colors of reddish yellow.Buzzer driver element 11 is realized by booster circuit and current amplification circuit, controls buzzer call, carries out auditory tone cues.External reset unit 3 is realized by watchdog circuit and key press detecting circuit, can reset to microprocessor 1 by button and microprocessor 1 program mal be detected time, it be resetted.Address generation unit 4 is realized by two 8421 rotary coding switch, produce semaphore in the time of composition distributed frame network required address code and connect the number of sliceable LED dot matrix driver element 6.
Unipolarity asynchronous serial decoding unit 8 is realized by decoding chip, code selection switch and isolation optocoupler, the unipolarity asynchronous serial decoding input port of composition band isolation.Frequency quantity output unit 9 is realized by pwm circuit and isolation optocoupler, the pulse signal of exportable 732Hz-1379Hz.Microprocessor 1 is received and is controlled the coded message that comprises address and data that substation sends by unipolarity asynchronous serial decoding unit 8, thereby show various patterns, frequency quantity output unit 9 reports feedback according to the decodes commands output corresponding frequencies signal of unipolarity asynchronous serial decoding unit 8 by display mode.
Band isolation RS-485 communications interface unit 7 adopts the RS485 chip composition of charged isolation and signal isolation, and semaphore can pass through the external communication of RS485 bus.2.4GHz radio-cell 10 adopts the design of 2.4GHz radio frequency chip, can receive 2.4GHz wireless data and be uploaded to host computer, and the equipment of being convenient to merges.
From the above, the utlity model has sliceable LED dot matrix driver element, can according to demand display unit be spliced to composition many lamps position semaphore or words display screen, thereby expand the scope of application of semaphore, save equipment investment; There is failure safe pilot unit, in the time of communication failure or microprocessor fault, can show fault guided mode, guarantee traffic safety; There is special communication interface, bus communication interface and 2.4GHz wireless communication interface, can carry out equipment fusion according to on-the-spot actual demand, greatly strengthened flexibility, practicality and the economy of equipment; There is remote online upgrade function, send upgrading order and application file to be updated by ground main control computer to underground signal machine, can complete the renewal to its application program without being in the action, be very easy to the debugging maintenance to semaphore and when needed its function expanded; There is the function that intrinsic safety electric source is provided self, without laying in addition power line, reduced equipment investment and construction cost.The utility model adopts Flameproof intrinsically safe design, can be applied in the dangerous occasion with damp.
The above embodiment is only that preferred embodiment of the present utility model is described; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of claims of the present utility model.

Claims (9)

1. many lamps of dot matrix position mine flame-proof and intrinsic safety type signal machine, comprise microprocessor, respectively the address generation unit that is connected with the input of microprocessor and unipolarity asynchronous serial decoding unit and the frequency quantity output unit being connected with the output of microprocessor, it is characterized in that: also comprise sliceable LED dot matrix driver element, the input of described sliceable LED dot matrix driver element is connected with the output of microprocessor.
2. many lamps of dot matrix according to claim 1 position mine flame-proof and intrinsic safety type signal machine, is characterized in that: described sliceable LED dot matrix driver element comprises that 5-24 decoding circuit and string turn and register circuit.
3. many lamps of dot matrix according to claim 1 position mine flame-proof and intrinsic safety type signal machine, it is characterized in that: described address generation unit comprises two 8421 rotary coding switch, described unipolarity asynchronous serial decoding unit comprises decoding chip, code selection switch and isolation optocoupler, and described frequency quantity output unit comprises pwm circuit and isolation optocoupler.
4. many lamps of dot matrix according to claim 1 position mine flame-proof and intrinsic safety type signal machine, it is characterized in that: also comprise failure safe pilot unit, the input of described failure safe pilot unit is connected with the output of microprocessor, and the output of described failure safe pilot unit is connected with the input of sliceable LED dot matrix driver element; Described failure safe pilot unit comprises microprocessor condition monitoring circuit, signal generating circuit and multichannel selection circuit.
5. according to many lamps of the dot matrix position mine flame-proof and intrinsic safety type signal machine described in claim 1 or 4, it is characterized in that: also comprise buzzer driver element, the input of described buzzer driver element is connected with the output of microprocessor, and the output of described buzzer driver element is connected with buzzer; Described buzzer driver element comprises booster circuit and current amplification circuit.
6. many lamps of dot matrix according to claim 1 position mine flame-proof and intrinsic safety type signal machine, it is characterized in that: also comprise band isolation RS-485 communications interface unit, described band isolation RS-485 communications interface unit is connected by UART interactive interfacing with microprocessor, and described band isolation RS-485 communications interface unit is made up of the RS485 chip of charged isolation and signal isolation.
7. many lamps of dot matrix according to claim 1 position mine flame-proof and intrinsic safety type signal machine, it is characterized in that: also comprise 2.4GHz radio-cell, described 2.4GHz radio-cell is connected by SPI interactive interfacing with microprocessor, and described 2.4GHz radio-cell is selected 2.4GHz radio frequency chip.
8. many lamps of dot matrix according to claim 1 position mine flame-proof and intrinsic safety type signal machine, it is characterized in that: also comprise external reset unit, described external reset unit is connected alternately with microprocessor, and described external reset unit comprises watchdog circuit and key press detecting circuit.
9. many lamps of dot matrix according to claim 1 position mine flame-proof and intrinsic safety type signal machine; it is characterized in that: also comprise intrinsic safety electric source unit; described intrinsic safety electric source unit comprises AC-DC power module and dual overcurrent-overvoltage protecting circuit, provides working power on the spot non-down-hole high pressure intrinsic safety AC power being converted to intrinsic safety electric source for semaphore.
CN201320777644.2U 2013-12-03 2013-12-03 Dot-matrix type multi-lamp-site mining explosive-proof and intrinsic safety signal machine Expired - Lifetime CN203603982U (en)

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CN201320777644.2U CN203603982U (en) 2013-12-03 2013-12-03 Dot-matrix type multi-lamp-site mining explosive-proof and intrinsic safety signal machine

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104407252B (en) * 2014-12-02 2017-10-13 合肥工大高科信息科技股份有限公司 The safety detection circuit and its detection method of a kind of mining switching machine control button
CN108605183A (en) * 2016-01-29 2018-09-28 杜比实验室特许公司 Shared, communication and polyphase source the multichannel cinema amplifier with power
US10778160B2 (en) 2016-01-29 2020-09-15 Dolby Laboratories Licensing Corporation Class-D dynamic closed loop feedback amplifier

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104407252B (en) * 2014-12-02 2017-10-13 合肥工大高科信息科技股份有限公司 The safety detection circuit and its detection method of a kind of mining switching machine control button
CN108605183A (en) * 2016-01-29 2018-09-28 杜比实验室特许公司 Shared, communication and polyphase source the multichannel cinema amplifier with power
US10778160B2 (en) 2016-01-29 2020-09-15 Dolby Laboratories Licensing Corporation Class-D dynamic closed loop feedback amplifier
CN108605183B (en) * 2016-01-29 2020-09-22 杜比实验室特许公司 Multichannel cinema amplifier with power sharing, signaling and multiphase power supply
US11121620B2 (en) 2016-01-29 2021-09-14 Dolby Laboratories Licensing Corporation Multi-channel cinema amplifier with power-sharing, messaging and multi-phase power supply
US11418109B2 (en) 2016-01-29 2022-08-16 Dolby Laboratories Licensing Corporation Multi-channel cinema amplifier with power-sharing, messaging and multi-phase power supply
US11601759B2 (en) 2016-01-29 2023-03-07 Dolby Laboratories Licensing Corporation Multi-channel cinema amplifier with power-sharing, messaging and multi-phase power supply
US11689860B2 (en) 2016-01-29 2023-06-27 Dolby Laboratories Licensing Corporation Multi-channel cinema amplifier with power-sharing, messaging and multi-phase power supply
US11882421B2 (en) 2016-01-29 2024-01-23 Dolby Laboratories Licensing Corporation Multi-channel cinema amplifier with power-sharing, messaging and multi-phase power supply

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Granted publication date: 20140521