CN201035702Y - Methane detection alarm instrument - Google Patents
Methane detection alarm instrument Download PDFInfo
- Publication number
- CN201035702Y CN201035702Y CNU2007200367251U CN200720036725U CN201035702Y CN 201035702 Y CN201035702 Y CN 201035702Y CN U2007200367251 U CNU2007200367251 U CN U2007200367251U CN 200720036725 U CN200720036725 U CN 200720036725U CN 201035702 Y CN201035702 Y CN 201035702Y
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- communication interface
- microprocessor
- sp3485en
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Abstract
The utility model discloses a methane detection alarm instrument, and comprises a microprocessor P89LPC936FDH, a sensor, an amplifying circuit and an alarming circuit concentratedly controlled by the microprocessor. The alarm instrument is characterized in that the microprocessor P89LPC936FDH is electrically connected with a communication interface which can input and output data. Because the communication interface is arranged, the utility model can realize that a plurality of communication interfaces are connected in parallel together, to be mutually connected with a serial port of a computer, the data of each alarm instrument is unitedly processed by the computer, the collecting speed, the statistical speed, and the processing speed of the data are greatly enhanced, at the same time, a plurality of alarm instruments which can be adjusted together through the computer are realized, the speed is rapid, the efficiency is high, and the precision of the adjustment is also enhanced obviously.
Description
Technical field:
The utility model relates to a kind of gas detection, alarm, the alarm of the portable detection concentration of methane gas that use particularly a kind of down-hole.
Background technology:
Portable methane detection alarming instrument is extensive use of under coal mine at present, and this alarm comprises power supply, catalysis element, sensor, bridge diagram, amplifying circuit, A/D change-over circuit, microprocessor P89LPC936FDH, warning circuit and display screen; Amplifying circuit and warning circuit are by the microprocessor centralized control.During use, can produce flameless burning behind the catalysis element contacting methane gas, sensor detects the methane gas after the burning, and temperature raises, and it is big that resistance becomes, the output voltage values of bridge diagram is changed, this voltage is sent into processor and is carried out data operation through amplifying and changing through A/D, and triggers warning circuit according to the parameter setting situation and send sound and light alarm, simultaneously, show date on the display screen, data such as time, gas detection numerical value.This methane alarm is easy to use in the down-hole, and sensitivity is higher, uses comparatively reliable simultaneously.But be to use the back that the post-processed work of alarm is comparatively bothered, the data read and the adjustment that are embodied in alarm need one one carrying out one by one, data discrete was bigger, inaccurate when the result of adjustment not only made measurement like this, and adjustment speed is slow, and intensity of workers height, efficient are low.
Summary of the invention:
The utility model is for avoiding above-mentioned existing in prior technology weak point, more than enough alarm of a kind of energy methane detection alarming instrument of adjustment together being provided.
The technical scheme that the utility model technical solution problem is adopted is:
The utility model comprises microprocessor P89LPC936FDH, sensor and by the central controlled amplifying circuit of microprocessor, warning circuit.
Design feature of the present utility model be described microprocessor P89LPC936FDH and can import, the communication interface of output data is electrically connected.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
The utility model is because of being provided with communication interface, can realize that a plurality of alarms are connected in parallel links to each other with computer by serial, by the data of computing machine by each alarm of the unified processing of management software, the collection of data, statistics and processing speed are greatly improved, simultaneously, can carry out adjustment together to a plurality of alarms by computer realization, speed is fast, the efficient height, the precision of adjustment also is improved significantly.
Description of drawings:
Fig. 1 is microprocessor and a communication interface circuit schematic diagram in the utility model.
Block diagram when Fig. 2 is the utility model and computing machine connection processing data.
Embodiment:
Referring to accompanying drawing 1, microprocessor P89LPC936FDH is bearing each circuit of the utility model and is obtaining focusing on of data, and its 17th pin is adjustment data input pins, and the 18th pin is the data output pin after handling; The communication interface that inputoutput data, a plurality of the utility model parallel connections of realization and serial ports of computers are communicated with is SP3485EN; The 17th pin of processor P 89LPC936FDH and the 1st pin of communication interface SP3485EN are electrically connected, the 18th pin of processor P 89LPC936FDH and the 4th pin of communication interface SP3485EN are electrically connected, be electrically connected back and the electrical connection of P89LPC936FDH the 3rd pin between the 2nd pin of communication interface SP3485EN and the 3rd pin, the 8th pin of communication interface SP3485EN connects 2.8 volts of positive sources, communication interface SP3485EN the 5th pin ground connection, the 6th pin of communication interface SP3485EN and the 7th pin are the data output pin.Referring to accompanying drawing 2, above-mentioned the 6th pin, the 7th pin are electrically connected by plug-in unit and serial line interface RS485, and serial line interface RS485 is communicated with by serial ports/RS485 converter and serial ports of computers, realizes the exchanges data of the utility model and computing machine thus.
Claims (3)
1. methane detection alarming instrument, comprise microprocessor P89LPC936FDH, sensor and by the central controlled amplifying circuit of microprocessor, warning circuit, it is characterized in that described microprocessor P89LPC936FDH and can import, the communication interface of output data is electrically connected.
2. by the described methane detection alarming instrument of claim 1, it is characterized in that described communication interface is SP3485EN.
3. by the described methane detection alarming instrument of claim 1, it is characterized in that the 17th pin of described microprocessor P89LPC936FDH and the 1st pin of communication interface SP3485EN are electrically connected, the 18th pin of microprocessor P89LPC936FDH and the 4th pin of communication interface SP3485EN are electrically connected, be electrically connected back and the electrical connection of P89LPC936FDH the 3rd pin between the 2nd pin of communication interface SP3485EN and the 3rd pin, the 8th pin of communication interface SP3485EN connects 2.8 volts of positive sources, communication interface SP3485EN the 5th pin ground connection, the 6th pin of communication interface SP3485EN and the 7th pin are the signal output pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200367251U CN201035702Y (en) | 2007-04-24 | 2007-04-24 | Methane detection alarm instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200367251U CN201035702Y (en) | 2007-04-24 | 2007-04-24 | Methane detection alarm instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201035702Y true CN201035702Y (en) | 2008-03-12 |
Family
ID=39196593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200367251U Expired - Fee Related CN201035702Y (en) | 2007-04-24 | 2007-04-24 | Methane detection alarm instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201035702Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738573A (en) * | 2016-02-27 | 2016-07-06 | 乐清市启铭电气有限公司 | Portable gas alarming device and debugging method |
-
2007
- 2007-04-24 CN CNU2007200367251U patent/CN201035702Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738573A (en) * | 2016-02-27 | 2016-07-06 | 乐清市启铭电气有限公司 | Portable gas alarming device and debugging method |
| CN105738573B (en) * | 2016-02-27 | 2017-11-28 | 乐清市启铭电气有限公司 | A kind of portable gas alarm and adjusting process |
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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: 20080312 Termination date: 20110424 |