CN202926393U - Digital signal detecting device of coal mine safety monitoring system - Google Patents
Digital signal detecting device of coal mine safety monitoring system Download PDFInfo
- Publication number
- CN202926393U CN202926393U CN 201220534158 CN201220534158U CN202926393U CN 202926393 U CN202926393 U CN 202926393U CN 201220534158 CN201220534158 CN 201220534158 CN 201220534158 U CN201220534158 U CN 201220534158U CN 202926393 U CN202926393 U CN 202926393U
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- monitoring system
- coal mine
- digital signal
- safety monitoring
- mine safety
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Abstract
The utility model provides a digital signal detecting device of a coal mine safety monitoring system and belongs to the field of coal mine safety. The digital signal detecting device of the coal mine monitoring system comprises a circuit board (1) and a circuit fixed on the circuit board (1), wherein the circuit is composed of a resistor R1, a light-emitting diode D1, a diode D2 and a buzzer U1. The anode of a detecting end (4) is connected with the resistor R1 in series and then connected with the positive pole of the light-emitting diode D1, the negative pole of the light emitting diode D1 is connected with the positive pole of the diode D2, and the negative pole of the diode D2 is connected with the buzzer U1 and then connected with the cathode of the detecting end (4). The digital signal detecting device of the coal mine safety monitoring system embodies a digital signal output by the coal mine safety monitoring system in a form of an analog signal and overcomes the defects that the digital signal is not beneficial to detection. In addition, the digital signal detecting device of the coal mine safety monitoring system alarms by means of an acousto-optic form and effectively avoids the possibility of occurrence of wrong judgment when being used on a site with a noisy working environment and under the condition of a completed environment.
Description
Technical field
The Coal Mine Safety Monitoring System digital signal detector belongs to the safety of coal mines field.Be specifically related to a kind of device that the data signal of Coal Mine Safety Monitoring System output is detected.
Background technology
Mine safety monitoring system is being undertaken the purpose monitoring work of whole down-hole gas, dust etc. and the transmission of monitor signal, and overflowing and controlling of the on-the-spot gas in down-hole is to be related to the key issue that can the colliery keep the safety in production.Along with the continuous raising of Colliery Safety Supervise System automaticity, gas-monitoring equipment is also in continuous update, and most of monitoring system all adopts data signal to transmit.Yet in the normal use procedure of monitoring system, all kinds of faults are having a strong impact on the normal operation of system always, and wherein occurring maximum is defeated, the false alarm of misinformation.And the data signal of monitoring system transmission is cannot see, and does not measure, and uses the measuring apparatuss such as universal meter, megger also to be difficult to judgement, so give system maintenance at ordinary times and safeguard and brought very large difficulty, is a great problem of watch-dog maintenance always.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, providing a kind of can embody the data signal of the mine safety monitoring system output form with analog signals such as acousto-optics more intuitively, facilitates the Coal Mine Safety Monitoring System digital signal detector of mine safety monitoring maintenance.
The technical scheme that its technical problem that solves the utility model adopts is: this Coal Mine Safety Monitoring System digital signal detector, it is characterized in that: comprise circuit board and the circuit that is fixed on circuit board, circuit is comprised of resistance R 1, light emitting diode D1, diode D2 and buzzer U1, be connected with the anode of light emitting diode D1 after the cathode series resistance R1 of test side, the negative electrode of light emitting diode D1 is connected with the anode of diode D2, is connected to the negative pole of test side after the negative electrode series connection buzzer U1 of diode D2.
Described circuit board is rectangular plate shape, and the test side is arranged on the top of circuit board, and alarm is arranged on the centre position of circuit board, and alarm lamp is arranged on the below of alarm.
Four jiaos of described circuit boards are provided with four fixing holes, are convenient to the fixing of circuit board.
Pad on described circuit board has carried out the sealing processing.
It is at present main in mine that what adopt is KJ76N moulded coal ore deposit safety monitoring system, the phenomenon of the failure that KJ76N moulded coal ore deposit safety monitoring system is in use comparatively concentrated is that saltus step appears in output signal, and the signal of KJ76N moulded coal ore deposit safety monitoring system output is data signal, and data signal is difficult to detect with conventional instruments such as universal meter, meggers.But find in to the analysis of the simulation drawing of analog signal and data signal and research, the saltus step of data signal is regular.
If data signal represents high potential " 1 " to saltus step from high to low, saltus step from low to high represents that the place is " 0 ", can reach the 5V left and right by discovery signals when high potential, can reach ﹣ 5V left and right during potential minimum.High low potential difference can reach about 10V, can drive buzzer warnings of sounding, and differentiates thereby can utilize this characteristic that invisible data signal has been become audible sound.And buzzer can send different sound under the different voltages of 0 ~ 15V, so the failure condition of the difference judgement Coal Mine Safety Monitoring System of the sound that the testing staff can send according to buzzer.In the utility model, the light emitting diode of having connected simultaneously in the loop of buzzer, thereby can utilize the acousto-optic means that the data signal of Coal Mine Safety Monitoring System output is detected, produce the disconnected situation of erroneous judgement thereby avoided in the larger or noisy environment of working environment noise the testing staff to can't hear buzzer warning.
Compared with prior art, the beneficial effect that has of the present utility model is:
1, this device represents the form of Coal Mine Safety Monitoring System output ground data signal with analog signal, has overcome data signal and has been unfavorable for the shortcoming that detects;
2, utilize simultaneously acoustooptic form to report to the police, effectively avoided in the situation that the possibility of error in judgement can appear when using in the large scene of working environment noise and circumstance complication;
3, this device can carry out the detection of signal to the equipment that multiple output signal is data signal simultaneously, and applicable situation is wider;
4, saved product casing, made simple in structurely, saved the space, be convenient to fix;
5, the pad on circuit board has all carried out the sealing processing, has avoided the erosion of moisture under the colliery, has avoided simultaneously the possibility of short circuit.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model circuit theory diagrams.
Wherein: 1, circuit board 2, alarm lamp 3, alarm 4, test side.
The specific embodiment
Fig. 1 ~ 2nd, most preferred embodiment of the present utility model is described further below in conjunction with 1 ~ 2 pair of the utility model of accompanying drawing.
As shown in Figure 1, circuit board 1 is rectangular plate shape, and test side 4 is arranged on the top of circuit board 1, and alarm 3 is arranged on the centre position of circuit board 1, and alarm lamp 2 is arranged on the below of alarm 3.Alarm lamp 2, alarm 3, test side 4 are welded on circuit board 1 and by circuit and link together.1 four jiaos of circuit boards are provided with four fixing holes, are convenient to the fixing of circuit board 1.
As shown in Figure 2, circuit is comprised of resistance R 1, light emitting diode D1, diode D2 and buzzer U1, be connected to the anode of light emitting diode D1 after the cathode series resistance R1 of test side 4, the negative electrode of light emitting diode D1 is connected with the anode of diode D2, is connected to the negative pole of test side 4 after the negative electrode series connection buzzer U1 of diode D2.
In the utility model, alarm has adopted buzzer U1, and alarm has adopted light emitting diode D1.Structurally omitted shell, components and parts directly have been welded on circuit board, saved the space and be convenient to the fixing of product.Carried out the sealing processing in the components and parts bond pad locations, not only can prevent the generation of short circuit phenomenon but also can avoid the erosion of moisture under colliery.
The specific works process is as follows: when Coal Mine Safety Monitoring System need to detect, at first with the data signal such as this device series winding access phone, video loop, the test side positive and negative electrode connected respectively the both positive and negative polarity of output loop.When Coal Mine Safety Monitoring System breaks down, saltus step will appear in output signal, thereby can produce certain magnitude of voltage in the loop, the alarm 3 that this magnitude of voltage just can drive in the loop is sounded, because alarm 3 can send different sound under different voltage, so the failure condition of the difference judgement Coal Mine Safety Monitoring System of the sound that the testing staff can send according to alarm 3.Can drive simultaneously alarm lamp 2 luminous, effectively avoid in the situation that the possibility of error in judgement can appear when using in the large scene of working environment noise and circumstance complication.
This device is except the output loop of the access Coal Mine Safety Monitoring System of can contacting, the failure condition of judgement Coal Mine Safety Monitoring System, can also in parallelly access in the power-supplying circuit of gas breaker, the electric power thus supplied of the intrinsically safe power supply of judgement gas breaker inside, power supply circuits conducting when measuring circuit is normal, alarm 3 in series circuit is worked and sends sound and light alarm with alarm lamp 2, can send different sound when measuring, know the height of supply voltage, judge with this whether the firedamp sensor working environment is normal.
The above, it is only preferred embodiment of the present utility model, be not to be the utility model to be done the restriction of other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (4)
1. Coal Mine Safety Monitoring System digital signal detector, it is characterized in that: comprise circuit board (1) and be fixed on circuit on circuit board (1), circuit is comprised of resistance R 1, light emitting diode D1, diode D2 and buzzer U1, be connected with the anode of light emitting diode D1 after the cathode series resistance R1 of test side (4), the negative electrode of light emitting diode D1 is connected with the anode of diode D2, is connected to the negative pole of test side (4) after the negative electrode series connection buzzer U1 of diode D2.
2. Coal Mine Safety Monitoring System digital signal detector according to claim 1, it is characterized in that: described circuit board (1) is rectangular plate shape, test side (4) is arranged on the top of circuit board (1), alarm (3) is arranged on the centre position of circuit board (1), and alarm lamp (2) is arranged on the below of alarm (3).
3. Coal Mine Safety Monitoring System digital signal detector according to claim 1 and 2 is characterized in that: (1) four jiao of described circuit board is provided with four fixing holes, is convenient to the fixing of circuit board (1).
4. Coal Mine Safety Monitoring System digital signal detector according to claim 1, it is characterized in that: the pad on described circuit board (1) has carried out the sealing processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534158 CN202926393U (en) | 2012-10-18 | 2012-10-18 | Digital signal detecting device of coal mine safety monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534158 CN202926393U (en) | 2012-10-18 | 2012-10-18 | Digital signal detecting device of coal mine safety monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926393U true CN202926393U (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220534158 Expired - Fee Related CN202926393U (en) | 2012-10-18 | 2012-10-18 | Digital signal detecting device of coal mine safety monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926393U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538299A (en) * | 2018-11-28 | 2019-03-29 | 徐州江煤科技有限公司 | A kind of automatic detection check device of mine safety |
-
2012
- 2012-10-18 CN CN 201220534158 patent/CN202926393U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538299A (en) * | 2018-11-28 | 2019-03-29 | 徐州江煤科技有限公司 | A kind of automatic detection check device of mine safety |
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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: 20130508 Termination date: 20131018 |