CN2854936Y - Gas monitoring intercom - Google Patents
Gas monitoring intercom Download PDFInfo
- Publication number
- CN2854936Y CN2854936Y CNU2005201419216U CN200520141921U CN2854936Y CN 2854936 Y CN2854936 Y CN 2854936Y CN U2005201419216 U CNU2005201419216 U CN U2005201419216U CN 200520141921 U CN200520141921 U CN 200520141921U CN 2854936 Y CN2854936 Y CN 2854936Y
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- gas
- gas monitor
- monitor intercom
- control chip
- intercom
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Abstract
The utility model discloses a gas monitoring interphone, which comprises gas concentration sensor, central control chip, and liquid crystal display device connected with the central control chip. The central control chip transfers quantified gas concentration data to the liquid crystal display device. The interphone also comprises a detachable storage for storing gas concentration data, bi-directional talker, and modem and wireless transmitter for transmitting data to ground surface. In comparison with prior art, the utility model has the advantages of convenient operation, timely response, and high safety and reliability.
Description
Technical field
The utility model relates to a kind of intercom, more particularly, relates to a kind of gas monitor intercom that uses when working under mine.
Background technology
Because the particularity of operation under the mine to incidental gas explosion accident under underground work personnel's safety formation very big threat, the especially coal mine, is usually brought the person and massive losses economically.Yet existing gas alarming device usually is positioned at the fixed position, can not detect the pernicious gas of excess timely and effectively in the very first time, averts catastrophe.Therefore, need a kind of warning device that moves with the staff,, can monitor timely pernicious gas when digging is on-the-spot when the outstanding phenomenon of gas takes place.
The utility model content
In order to overcome aforesaid problem, the utility model provides a kind of gas monitor intercom, and it can allow underground operators conveniently understand gas density data in the mine, the generation of minimizing accident in time along with underground operators moves.
The technical solution adopted in the utility model is: a kind of gas monitor intercom, it comprises gas concentration sensor, middle control chip and the liquid crystal indicator that is connected with middle control chip, and described middle control chip is transferred to described liquid crystal indicator with the detected gas density data of gas concentration sensor and shown.
Preferably, described middle control chip adopts the arm7 chip.
Further, described gas monitor intercom also can comprise a detachable memory that is used for storing described gas density data, and it is connected with described middle control chip, and described detachable memory outside has containment vessel.
Preferably, described detachable memory adopts flash memory.
Further, described gas monitor intercom also can comprise a phonetic alarm device that is connected with described middle control chip.
Further, described gas monitor intercom also can comprise the modulator-demodulator and the wireless launcher that are connected with described middle control chip, described modulator-demodulator sends receiving system to by wireless launcher after described gas density data conversion is analog signal.
Preferably, described receiving system is the terrestrial wireless receiving system.
Preferably, described receiving system is the fixing point receiving system that is positioned at the down-hole, and described fixing point receiving system is connected with the ground control centre by cable.
Further, described gas monitor intercom also can comprise one or more in air pressure probe, air velocity transducer, temperature sensor, humidity sensor, sensor of dust concentration and the noise transducer.
Further, described gas monitor intercom also can comprise battery case and be equipped with charging socket.
In above-mentioned technical scheme, by the gas alarming device is combined with intercom, make under the situation that does not increase operating personnel's burden, can understand the gas density of job site in time, for tackling excessive gas, the staff gains time.Simultaneously, the data of storing in the detachable holder can be used as the capsule information of analyzing downhole conditions, also can the back take place as important Data Source in mine disaster.Further, by wireless transmitter module, can allow the ground control centre understand downhole conditions in time, control during for operation at ordinary times and accident generation, coordination provide auxiliary.Therefore, with respect to prior art, the utlity model has easy to use, reaction in time and advantage such as safe and reliable.
Description of drawings
Fig. 1 is the control circuit block diagram according to the gas monitor intercom of an embodiment of the present utility model;
Fig. 2 a and Fig. 2 b are the circuit diagram according to the gas monitor intercom of a preferred embodiment of the present utility model.
Embodiment
Below in conjunction with Figure of description and specific embodiment the utility model is described in further detail.
The utility model provides a kind of gas monitor intercom, and it can also detect coal mine gas concentration providing outside the call function of original intercom, and demonstration gas density data also give the alarm.
Gas monitor intercom of the present utility model comprises firedamp sensor, firedamp sensor comprises heat catalytic element and detects electric bridge, the output voltage that detects electric bridge is connected with middle control chip by pre-amplification circuit, middle control chip calculates gas concentration according to the voltage difference that firedamp sensor records, and should value show by liquid crystal indicator, when gas density surpasses safe range, as 1% o'clock, the alarm lamp flicker is to remind the staff, and alarm lamp can adopt light-emitting diode or other luminescent device.In addition, middle control chip can be connected with the loudspeaker of intercom, controls it and sound the alarm when gas density surpasses safe range.Liquid crystal indicator can show the gas density of nearest measurement always in real time, also a control button can be set, and when button was pressed, the gas monitor intercom detected gas density at that time and shows.Above-mentioned various device is all isolated with methane gas except the sensing part of firedamp sensor, in case the electric phenomenon of device causes gas explosion.
In a preferred embodiment; described gas monitor intercom also can comprise a detachable memory; detachable memory is connected with middle control chip; the gas density data that the storage firedamp sensor records; be provided with protecting sheathing in the detachable memory outside; guarantee that detachable memory can remain intact, and plays the effect of black box when gas explosion accident takes place.Like this,, the data that store can be saved in the central database, for being equipped with the usefulness in future, and after accident takes place, more can be and reproduce the scene of the accident, inquire about accident cause rare data are provided normally in service.Because flash memory has shockproof and jamproof characteristic, so detachable memory preferably adopts flash memory, in certain embodiments, also can adopt other suitable memory device.Owing to the finite capacity of memory, for example can only store 24 hours data, after the information of collecting surpassed 24 hours, middle control chip controls detachable memory only kept nearest 24 hours data.
With reference now to Fig. 1,, it is the control circuit block diagram according to the gas monitor intercom of an embodiment of the present utility model.In this embodiment, the gas monitor intercom also can comprise modulator-demodulator and wireless launcher, be used for detected data are converted to analog signal, send to the ground control centre with wireless mode, also can send the data to the fixedly receiving system that is positioned at working face, fixedly receiving system is sent to the ground control centre by cable with data, can solve like this under some situation, can't carry out the problem of radio communication.In addition, in this embodiment,, also can on intercom, be equipped with monitor, picture signal is sent to the ground control centre, realize further monitoring if bandwidth allows.In certain embodiments, except gas concentration sensor, also can on intercom, install and measure the transducer of air pressure, wind speed, temperature, humidity, dust concentration, noise etc., the control chip sends to ground after handling in the process, or be stored in the detachable memory, to help setting up relevant database.In further embodiments, intercom also can adopt detachable battery as power supply, and is equipped with charging socket, so that use.
With reference now to Fig. 2,, it is the circuit diagram according to the gas monitor intercom of a preferred embodiment of the present utility model.
The concrete course of work is as follows:
When the heat catalytic element contacting methane gas of firedamp sensor, flameless combustion takes place, make device temperature raise, device resistance increases, originally produce voltage difference between the electric bridge two ends of balance, amplify by the voltage of pre-amplification circuit output, and control chip in delivering to, A/D convertor circuit in the middle control chip is converted to digital signal with this aanalogvoltage, and be sent to the liquid crystal indicator demonstration, simultaneously this digital signal is compared with the secure threshold of original storage, when surpassing secure threshold, be that the guide sound optical alarm circuit is opened, the loudspeaker by intercom sound the alarm or send passage of scintillation light by light-emitting diode.When firedamp sensor records a new numerical value, this numerical value is shown by liquid crystal indicator, and store in the detachable memory, middle control chip is sent to modulator-demodulator with this numerical value, be converted into analog signal, send by wireless launcher.
Gas monitor intercom of the present utility model can be in coal mine or other cause the occasion of exploding owing to gas leakage.This intercom is by gas monitor sensor monitors methane concentration, and data are shown, store and be wirelessly transmitted to the ground control centre, when methane concentration surpasses when dangerous, also can send sound and light alarm, reduced the probability that accident takes place.
Those skilled in the art are to be understood that; the disclosed specific embodiment of the utility model is not that the utility model is carried out any restriction; but in order to make the those skilled in the art more clearly understand the utility model, protection range of the present utility model is only defined by appended claims.
Claims (10)
1. gas monitor intercom, it is characterized in that: described gas monitor intercom also comprises gas concentration sensor, middle control chip and liquid crystal indicator, and described middle control chip is transferred to described liquid crystal indicator with the detected gas density data of gas concentration sensor and shown.
2. gas monitor intercom according to claim 1; it is characterized in that: described gas monitor intercom further comprises a detachable memory that is used for storing described gas density data; it is connected with described middle control chip, and described detachable memory outside has containment vessel.
3. gas monitor intercom according to claim 2 is characterized in that: described detachable memory is a flash memory.
4. gas monitor intercom according to claim 1 and 2 is characterized in that: the loudspeaker of described gas monitor intercom can be used as phonetic alarm device.
5. gas monitor intercom according to claim 1 and 2, it is characterized in that: described gas monitor intercom further comprises the modulator-demodulator and the wireless launcher that are connected with described middle control chip, described modulator-demodulator sends receiving system to by wireless launcher after described gas density data conversion is analog signal.
6. gas monitor intercom according to claim 5 is characterized in that: described receiving system is the terrestrial wireless receiving system.
7. gas monitor intercom according to claim 5 is characterized in that: described receiving system is the fixing point receiving system that is positioned at the down-hole, and described fixing point receiving system is connected with the ground control centre by cable.
8. gas monitor intercom according to claim 1 is characterized in that: described intercom further comprises one or more in air pressure probe, air velocity transducer, temperature sensor, humidity sensor, sensor of dust concentration and the noise transducer.
9. gas monitor intercom according to claim 1 and 2 is characterized in that: the control chip adopts Philips's arm7 chip in described.
10. gas monitor intercom according to claim 1 and 2 is characterized in that: it has battery case and is equipped with charging socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201419216U CN2854936Y (en) | 2005-11-29 | 2005-11-29 | Gas monitoring intercom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201419216U CN2854936Y (en) | 2005-11-29 | 2005-11-29 | Gas monitoring intercom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854936Y true CN2854936Y (en) | 2007-01-03 |
Family
ID=37581573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201419216U Expired - Fee Related CN2854936Y (en) | 2005-11-29 | 2005-11-29 | Gas monitoring intercom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854936Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103079118A (en) * | 2013-01-18 | 2013-05-01 | 复旦大学无锡研究院 | Multi-function field interphone |
| CN107389231A (en) * | 2017-07-31 | 2017-11-24 | 桂林电子科技大学 | A kind of high-accuracy portable coal mine gas outburst prediction instrument |
-
2005
- 2005-11-29 CN CNU2005201419216U patent/CN2854936Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103079118A (en) * | 2013-01-18 | 2013-05-01 | 复旦大学无锡研究院 | Multi-function field interphone |
| CN107389231A (en) * | 2017-07-31 | 2017-11-24 | 桂林电子科技大学 | A kind of high-accuracy portable coal mine gas outburst prediction instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |