CN207164962U - A kind of hydrogen sulfide warning system - Google Patents
A kind of hydrogen sulfide warning system Download PDFInfo
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- CN207164962U CN207164962U CN201720654099.6U CN201720654099U CN207164962U CN 207164962 U CN207164962 U CN 207164962U CN 201720654099 U CN201720654099 U CN 201720654099U CN 207164962 U CN207164962 U CN 207164962U
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- chip microcomputer
- hydrogen sulfide
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Abstract
The utility model discloses a kind of hydrogen sulfide warning system, including H2S sensors, MSP430 single-chip microcomputers, acousto-optic warning unit, LED display unit and power subsystem, H2S sensors are connected with the single-chip microcomputer, for the concentration signal of collection to be sent into the single-chip microcomputer, acousto-optic warning unit and LED display unit are connected with the single-chip microcomputer respectively, the data that single-chip microcomputer is used to receive the H2S sensors are compared after processing by being sent respectively to the acousto-optic warning unit, LED display unit and storage circuit, single-chip microcomputer also connects host computer by telecommunication circuit and uploaded for data, power subsystem respectively with the H2S sensors, single-chip microcomputer, acousto-optic warning unit, LED display unit and storage circuit are connected to power.The system realizes real-time monitoring and the LED simultaneous displays of concentration of hydrogen sulfide, and when the concentration detected exceedes default threshold value, system exports rapidly sound and light alarm, can effectively improve the security of process of oil production, avoids the generation of accident.
Description
Technical field
The utility model belongs to safety production technique field, and in particular to a kind of hydrogen sulfide warning system.
Background technology
In today that industrialization continues to develop, entire society is also sharply increasing for the demand of oil, what supply falls short of demand
Present situation grows in intensity.China's domestic petroleum shortage of resources contradiction increasingly becomed restrict Chinese Economy Development it is crucial because
Element, so the security of oil exploitation also just seems increasingly important.In the recovery process of oil, it there may be under oil field
Substantial amounts of high pressure of hydrogen sulfide gas, if can not in time find and make necessary protection, once gas blowout accident occurs, easily cause
Substantial amounts of personnel casualty accidentses, and serious economic loss.The H2S alarms of many company's productions domestic at present, although real
Existing function is a lot, but often has that power consumption is larger to be difficult to reduce, so that what can not be used under the conditions of rugged environment asks
Topic.
Utility model content
Technical problem to be solved in the utility model is to be directed to above-mentioned deficiency of the prior art, there is provided one kind vulcanization
Hydrogen warning system, the security of process of oil production can be effectively improved, avoid the generation of accident.
The utility model uses following technical scheme：
A kind of hydrogen sulfide warning system, including H2S sensors, MSP430 single-chip microcomputers, acousto-optic warning unit, LED display are single
Member and power subsystem, the H2S sensors are connected with the single-chip microcomputer, for the concentration signal of collection to be sent into the monolithic
Machine, the acousto-optic warning unit and LED display unit are connected with the single-chip microcomputer respectively, and the single-chip microcomputer is described for receiving
The data of H2S sensors are compared after processing by being sent respectively to the acousto-optic warning unit, LED display unit and storage
Circuit, the single-chip microcomputer also by telecommunication circuit connect host computer be used for data upload, the power subsystem respectively with the H2S
Sensor, single-chip microcomputer, acousto-optic warning unit, LED display unit and storage circuit are connected to power.
Further, the single-chip microcomputer is connected by current-limiting circuit with the H2S sensors.
Further, amplifying circuit is connected the H2S sensors with the single-chip microcomputer after filtering, is set in the single-chip microcomputer
D/A converting circuit is equipped with, for carrying out analog-to-digital conversion to the H2S sensing datas of reception.
Further, the single-chip microcomputer is connected with storage circuit, and the storage circuit is used for preset alarm threshold value, alarm
Information, program code, machine open/close record and user data are recorded.
Further, the AT24C32 type eeprom memories of I2C bus serials are provided with the storage circuit,.
Further, the telecommunication circuit uses P521 photo-couplers, for being communicated with the host computer.
Further, the single-chip microcomputer is also associated with remote control circuit, described for receiving the input signal from remote control
Remote control circuit selects TC9012 infrared remote control chips.
Further, the H2S sensors use electrochemical transducer[sensor.
Further, the power subsystem also includes rechargeable battery, and the rechargeable battery is used to provide in system power failure
Electric energy.
Compared with prior art, the utility model at least has the advantages that：
Hydrogen sulfide warning system of the utility model based on oil drilling platform is using singlechip controller as master chip, knot
Close periphery singlechip minimum system circuit, sulfurated hydrogen detection unit, LED display unit, acousto-optic warning unit, communication unit,
Memory cell and infrared remote control unit composition hardware circuit, real-time monitoring and the LED simultaneous displays of concentration of hydrogen sulfide are realized, when
When the concentration detected exceedes default threshold value, system exports rapidly sound and light alarm, can effectively improve process of oil production
Security, avoid the generation of accident.
Further, memory uses I2C buses, and interface line is few, and control mode is simple, and device packing forms are small, communication
Speed is higher, and AT24C32 memories possess 32Kbit memory space, has the characteristics of low-power consumption.
Further, the analog signal collected is first passed through bridge rectifier by hydrogen sulfide sensor, then by low pass
Filtering, has reached the more stable requirement of signal, and the signal amplification after being is carried out to be prepared in advance, using electrochemical transducer[sensor
Disclosure satisfy that the sensitivity required for general detection and accuracy, small volume, it is simple to operate, easy to carry, supervised available for scene
Survey, and it is cheap.
Further, using the MSP430 series monolithics with super low-power consumption, its advantage is given full play to, will greatly more
The defects of conventional gas detecting instrument power consumption is higher is mended, the stability and reliability of alarm performance is improved, adds information
Start record and historical query and remote control reception function, using 9012 cores with high performance CMOS technology and low-power consumption
Piece is infrared remote-control device so that the function of system is more improved and intellectuality.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the utility model warning system schematic diagram；
Fig. 2 is utility model works flow chart.
Embodiment
The utility model provides a kind of hydrogen sulfide warning system, using with low-voltage, super low-power consumption, rapid recovery etc.
The MSP430 type single-chip microcomputers of advantage, coordinate peripheral cell on its abundant piece so that system more digitizes and efficient, raising
The reliability and operability of design.
Referring to Fig. 1, the utility model hydrogen sulfide warning system includes H2Sensor, single-chip microcomputer, acousto-optic warning unit,
LED display unit, storage circuit and power subsystem, the H2Amplifying circuit is connected sensor with the single-chip microcomputer after filtering,
The H2Sensor is used for the collection of concentration signal and is sent to the single-chip microcomputer afterwards after filtering, the acousto-optic warning unit,
LED display unit and storage circuit are connected with the single-chip microcomputer respectively, and the single-chip microcomputer passes through current-limiting circuit and the H2S is sensed
Device connects, and the single-chip microcomputer is used to receive the H2The data of sensor are compared described by being sent respectively to after processing
Acousto-optic warning unit, LED display unit and storage circuit, the single-chip microcomputer also connect host computer by telecommunication circuit and are used for data
Upload, the power subsystem respectively with the H2Sensor, single-chip microcomputer, acousto-optic warning unit, LED display unit and storage electricity
Road connects.
Wherein, the H2Sensor is acquired using electrochemical transducer[sensor to sulfureted hydrogen gas concentration, with reference to current limliting
Non electrical quantity is converted into electricity by circuit, because electric signal is too small, needs the amplification of amplified circuit, and by filter circuit by signal
In undesirable frequency component filter out；
Analog-to-digital conversion is carried out to signal after the single-chip microcomputer reception signal, quantification treatment is carried out to the amplitude of discrete signal,
Output time and the discrete data signal of amplitude, and handled data are further again, pass through the synchronous prison in real time of LED displays
Survey concentration value；
When the concentration detected exceedes alarm threshold value, sound and light alarm is exported immediately, is uploaded data by telecommunication circuit,
And current data are recorded on the eeprom memory of I2C bus serials, the information recorded on a memory can pass through
Telecommunication circuit conducts interviews at any time.
The telecommunication circuit uses P521 photo-couplers, the communication between realization and host computer, first photo-coupler
Input belongs to current mode device work, is low-resistance element again, thus common mode inhibition capacity is very strong.So it is applied in length
Terminal isolation element is used as in line transmission information, signal to noise ratio can be greatly enhanced.But in Computer digital communication and in real time
, also can be as the interface device of signal isolation so that the reliability of computer operation is greatly strengthened in control.
The storage circuit be mainly used in preset alarm threshold value, warning message, program code, machine open/close record and
Some need the record of the user data preserved etc. after system power failure.
I2C buses are twin wire universal serial bus, for connecting microcontroller and its ancillary equipment has that interface line is few, control
The advantages that mode is simple, and device packing forms are small, and traffic rate is higher.
The utility model possesses using the EEPROM memory cell of I2C bus serials, model AT24C32
32Kbit memory space, there is the characteristics of low-power consumption.
The single-chip microcomputer is also associated with remote control circuit, and for receiving the input signal from remote control, remote control is using red
Outer remote control, from 9012 chips.
Base band binary signal is modulated into a series of burst signal by the transmitting terminal of infrared communication, passes through infrared emission
Pipe launches infrared signal train of pulse, and the method for signal modulation is carried out to realize infrared letter by the time interval between train of pulse
Number transmitting and reception.When the corresponding key of transmitter is pressed, receiver output high level signal, by accessing single-chip microcomputer control
The outer interruption of device processed, key down state is detected by interrupt service routine, so as to be serviced to complete corresponding interrupt.
The single-chip microcomputer is MSP430F149 chips, using the bus of 16, and is containing program code capacity in piece
60KB+256 bytes can FLASH reader of System Programming and 2KB RAM.In addition, in the configuration of unit, including
Basic clock unit (internal clocking and two external clocks), 1 WatchDog Timer, 1 analog comparator, 7
16 bit timing devices of individual capture/comparand register and PWM output, 48 parallel-by-bit ports, 2 there are 8 of interrupt function simultaneously
The units such as row port, 12 A/D converters, 2 serial communication interfaces.
Power subsystem is powered using 18V Width funtions power supply, and inside uses MC34064, and voltage is converted into system electricity from 18V
5V needed for source.The 5V system power supplies changed through MC34064, then by being converted to 3V power supply through SP6200, passed for hydrogen sulfide
Sensor is powered.It can be automatically powered off after the concentration of hydrogen sulfide detected reaches threshold concentration, when concentration of hydrogen sulfide drops to peace
Automatic recovery of power supply during total head.Power consumption can either be so reduced, also as sensor is depletion type used by this secondary design,
Make also farthest can effectively apply sensor in this way, thus, it is possible to extend the service life of sensor,
And this alarm usage time and reduce maintenance times so that system work it is more reliable and more stable.
The utility model hydrogen sulfide warning system has the characteristics that：
(1) sulfureted hydrogen gas concentration simultaneous display function：Monitoring in real time, and the gas concentration under the simultaneous display environment
Value；
(2) sound and light of alarm：When H2S gas concentrations report reaches predetermined threshold value, sound and light alarm is exported；
(3) technology warning function：When instrument exception, sound and light alarm is exported, by LED charactrons display alarm information；
(4) record queries function：System is automatically by concentration monitor data and the Large Copacity of warning message deposit system extension
In memory, it may bring up and show.
Referring to Fig. 2, the system course of work is as follows：
S1, system electrification, the initialization to singlechip chip and its each register and I/O pins, and inspection system is each
The power-up condition of unit；
If checking mistake, that is, when not meeting the requirement of design, then error logger is performed, record wrong letter
Breath, while sound and light alarm is exported, and error code is sent by the upward position machine of the subprogram that communicates；
After the completion of S2, step S1 self-tests, start logging program is performed, records this boot-strap information；
S3, timeslice processing routine are changed to A/D, remote processing subprogram and power down record timesharing dispatch deal, and A/D turns
When changing cell operation, sensor voltage A/D conversions will be started and by the data after conversion, by being changed after filtering and linearization process
It is counted as concentration unit value and is shown in a manner of LED；
If S4, the concentration detected have exceeded default alarm threshold value, concentration over-standard record output sound simultaneously is performed
Light alarm, and concentration over-standard information is sent by the upward position machine of the subprogram that communicates；
When system receives the querying command of host computer transmission, communication subprogram is performed, will be recorded in memory
Specify information is sent to host computer.
Preferably, the system is in the selection of power configuration, from rechargeable battery as backup battery, when instrument is in just
During normal working condition, state of the reserve battery then in charging, when the situation of power down occurs, electricity can be switched to by circuit
Pond powers, and records this power down/shutdown information.
Before system debug, hardware debugging is carried out first, including inspection to hardware each several part component and to LED
Show whether checking completely, with ensure hardware various pieces can steady operation, set a concentration signal value, check LED
Can charactron normally show；When changing setting value, and exceeding alarm threshold value can normal sound and light alarm, can the intensity of alarm
Reach technical requirements, realize real-time monitoring and the LED simultaneous displays of concentration of hydrogen sulfide, when the concentration detected is more than default
During threshold value, system exports rapidly sound and light alarm, is also added into store function, the data record that will also be detected while alarm
Onto memory, facilitate calling and inquiry of the operating personnel to alarm logging.
Above content is only to illustrate technological thought of the present utility model, it is impossible to limits protection model of the present utility model with this
Enclose, it is every according to the utility model proposes technological thought, any change done on the basis of technical scheme, each fall within this reality
Within protection domain with new claims.
Claims (9)
1. a kind of hydrogen sulfide warning system, it is characterised in that including H2Sensor, MSP430 single-chip microcomputers, acousto-optic warning unit,
LED display unit and power subsystem, the H2Sensor is connected with the single-chip microcomputer, for the concentration signal of collection to be sent
To the single-chip microcomputer, the acousto-optic warning unit and LED display unit are connected with the single-chip microcomputer respectively, and the single-chip microcomputer is used for
Receive the H2The data of sensor are compared after processing by being sent respectively to the acousto-optic warning unit, LED shows list
Member and storage circuit, the single-chip microcomputer also connect host computer by telecommunication circuit and uploaded for data, the power subsystem difference
With the H2Sensor, single-chip microcomputer, acousto-optic warning unit, LED display unit and storage circuit are connected to power.
2. a kind of hydrogen sulfide warning system according to claim 1, it is characterised in that the single-chip microcomputer passes through current-limiting circuit
With the H2Sensor connects.
A kind of 3. hydrogen sulfide warning system according to claim 2, it is characterised in that the H2Sensor is put after filtering
Big circuit is connected with the single-chip microcomputer, D/A converting circuit is provided with the single-chip microcomputer, for the H to reception2S is sensed
Device data carry out analog-to-digital conversion.
4. a kind of hydrogen sulfide warning system according to claim 1, it is characterised in that the single-chip microcomputer is connected with storage electricity
Road, the storage circuit are used to enter preset alarm threshold value, warning message, program code, machine open/close record and user data
Row record.
5. a kind of hydrogen sulfide warning system according to claim 4, it is characterised in that be provided with the storage circuit
The AT24C32 type eeprom memories of I2C bus serials.
6. a kind of hydrogen sulfide warning system according to claim 1, it is characterised in that the telecommunication circuit uses P521 light
Coupler, for being communicated with the host computer.
7. a kind of hydrogen sulfide warning system according to claim 1, it is characterised in that the single-chip microcomputer is also associated with being remotely controlled
Circuit, for receiving the input signal from remote control, the remote control circuit selects TC9012 infrared remote control chips.
A kind of 8. hydrogen sulfide warning system according to claim 1, it is characterised in that the H2Sensor uses electrochemistry
Formula sensor.
9. a kind of hydrogen sulfide warning system according to claim 1, it is characterised in that the power subsystem also includes charging
Battery, the rechargeable battery are used to provide electric energy in system power failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720654099.6U CN207164962U (en) | 2017-06-06 | 2017-06-06 | A kind of hydrogen sulfide warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720654099.6U CN207164962U (en) | 2017-06-06 | 2017-06-06 | A kind of hydrogen sulfide warning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207164962U true CN207164962U (en) | 2018-03-30 |
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ID=61710455
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720654099.6U Expired - Fee Related CN207164962U (en) | 2017-06-06 | 2017-06-06 | A kind of hydrogen sulfide warning system |
Country Status (1)
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| CN (1) | CN207164962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112084050A (en) * | 2019-06-14 | 2020-12-15 | 北京北方华创微电子装备有限公司 | Information recording method and system |
-
2017
- 2017-06-06 CN CN201720654099.6U patent/CN207164962U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112084050A (en) * | 2019-06-14 | 2020-12-15 | 北京北方华创微电子装备有限公司 | Information recording method and system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20180606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |