CN210037703U - Toxic gas alarm - Google Patents
Toxic gas alarm Download PDFInfo
- Publication number
- CN210037703U CN210037703U CN201920623352.0U CN201920623352U CN210037703U CN 210037703 U CN210037703 U CN 210037703U CN 201920623352 U CN201920623352 U CN 201920623352U CN 210037703 U CN210037703 U CN 210037703U
- Authority
- CN
- China
- Prior art keywords
- converter
- alarm
- calibrator
- cpu microcomputer
- voltage signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Emergency Alarm Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to a poison gas alarm, including gas circuit system, calibrator, CPU microcomputer, little current amplifier, AD converter, DA converter, drift suppression circuit, power module, display screen, sound warning module. The utility model ionizes the gas to be detected by the calibrator to generate a voltage signal, the micro-circuit amplifier amplifies the voltage signal and collects and samples by the CPU microcomputer, the CPU microcomputer judges whether the alarm is inert and elegant, and when the inert and elegant are generated, the D/A converter is started, and the inert drift of the alarm is restrained and compensated by the drift restraining circuit; when the voltage signal data exceed the threshold value, the sound prompting module is started to send out an alarm signal, and accurate monitoring of toxic gas is achieved.
Description
Technical Field
The utility model relates to an siren field, concretely relates to poison gas siren.
Background
The alarm is mainly used for monitoring the contamination condition of the nerve-like toxic agent in the air, and when the air contamination reaches a certain degree, the alarm sends out alarm warning signals in a sound and light mode. The existing toxic gas alarm has poor sensitivity, and the inertia drift of the alarm can influence the sensitivity of the alarm to a great extent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a poison gas siren for solve the poor problem of alarm sensitivity among the prior art.
The utility model provides a toxic gas alarm, which comprises a gas circuit system, a calibrator, a CPU microcomputer, a micro-current amplifier, an A/D converter, a D/A converter, a drift suppression circuit, a power module, a display screen and a sound reminding module;
the gas path system is connected with the calibrator and inputs the gas to be detected into the calibrator to be ionized to generate a voltage signal;
the calibrator is connected with the microcircuit amplifier and transmits a voltage signal to the microcircuit amplifier to amplify the voltage signal;
the micro-circuit amplifier is connected with a CPU microcomputer through an A/D converter, and the CPU microcomputer samples a voltage signal output by the micro-circuit amplifier through the A/D converter;
the CPU microcomputer is connected with the display screen and the sound reminding module, and the sound reminding module is used for giving out toxic gas alarm;
the CPU microcomputer is sequentially connected with the D/A converter and the drift suppression circuit, and the drift suppression circuit is used for suppressing and compensating the inert drift of the alarm;
the drift suppression circuit is connected with the microcircuit amplifier.
Furthermore, the CPU microcomputer is connected with a data interface, and the data interface is used for being in communication connection with the workbench.
Furthermore, the CPU microcomputer is also connected with a watchdog for monitoring the state of the alarm.
Furthermore, the power module comprises a charging socket, a battery pack, a voltage stabilizer and a power converter, wherein the charging socket is connected with the battery pack and used for charging the battery pack, the charging socket is connected with the A/D converter and the CPU microcomputer for supplying power, and the battery pack supplies power to the calibrator sequentially through the voltage stabilizer and the power converter.
Adopt above-mentioned the utility model discloses technical scheme's beneficial effect is:
the utility model ionizes the gas to be detected by the calibrator to generate a voltage signal, the micro-circuit amplifier amplifies the voltage signal and collects and samples by the CPU microcomputer, the CPU microcomputer judges whether the alarm is inert and elegant, and when the inert and elegant are generated, the D/A converter is started, and the inert drift of the alarm is restrained and compensated by the drift restraining circuit; when the voltage signal data exceed the threshold value, the sound prompting module is started to send out an alarm signal, and accurate monitoring of toxic gas is achieved.
Drawings
FIG. 1 is a schematic diagram of the toxic gas alarm of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1, the utility model provides a toxic gas alarm, which comprises a gas circuit system, a calibrator, a CPU microcomputer, a micro-current amplifier, an a/D converter, a D/a converter, a drift suppression circuit, a power module, a display screen and a sound reminding module;
the gas path system is connected with the calibrator and inputs the gas to be detected into the calibrator to be ionized to generate a voltage signal;
the calibrator is connected with the microcircuit amplifier and transmits a voltage signal to the microcircuit amplifier to amplify the voltage signal;
the micro-circuit amplifier is connected with a CPU microcomputer through an A/D converter, and the CPU microcomputer samples a voltage signal output by the micro-circuit amplifier through the A/D converter;
the CPU microcomputer is connected with the display screen and the sound reminding module, and the sound reminding module is used for giving out toxic gas alarm;
the CPU microcomputer is sequentially connected with the D/A converter and the drift suppression circuit, and the drift suppression circuit is used for suppressing and compensating the inert drift of the alarm;
the drift suppression circuit is connected with the microcircuit amplifier.
The working principle of the toxic gas alarm is as follows: the gas circuit system inputs the gas to be detected into the calibrator to generate a voltage signal, the calibrator transmits the voltage signal to the microcircuit amplifier to amplify the voltage signal and transmits the amplified voltage signal to the A/D converter to carry out data conversion, and the CPU microcomputer samples through the A/D converter to judge whether the alarm is inert and elegant and whether the alarm gives an alarm. When inertia drift occurs, starting the D/A converter, and inhibiting and compensating the inertia drift of the alarm by the drift inhibition circuit; and when the preset threshold value is exceeded, the sound prompting module is started to send out an alarm signal.
The CPU microcomputer is connected with a data interface, and the data interface is used for being in communication connection with a workbench, so that the specific state of the position of the alarm can be conveniently and remotely checked.
The CPU microcomputer is also connected with a watchdog and used for monitoring the state of the alarm.
The power module comprises a charging socket, a battery pack, a voltage stabilizer and a power converter, wherein the charging socket is connected with the battery pack and used for charging the battery pack, the charging socket is connected with the A/D converter and a CPU microcomputer to supply power, and the battery pack supplies power to the calibrator sequentially through the voltage stabilizer and the power converter.
To sum up, the utility model ionizes the gas to be detected by the calibrator to generate a voltage signal, the micro-circuit amplifier amplifies the voltage signal and collects and samples by the CPU microcomputer, the CPU microcomputer judges whether the alarm is inert and elegant, when the inert and elegant are generated, the D/A converter is started, and the inert drift of the alarm is restrained and compensated by the drift restraining circuit; when the voltage signal data exceed the threshold value, the sound prompting module is started to send out an alarm signal, and accurate monitoring of toxic gas is achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (4)
1. A toxic gas alarm is characterized by comprising a gas circuit system, a calibrator, a CPU microcomputer, a micro-current amplifier, an A/D converter, a D/A converter, a drift suppression circuit, a power supply module, a display screen and a sound reminding module;
the gas path system is connected with the calibrator and inputs the gas to be detected into the calibrator to be ionized to generate a voltage signal;
the calibrator is connected with the microcircuit amplifier and transmits a voltage signal to the microcircuit amplifier to amplify the voltage signal;
the micro-circuit amplifier is connected with a CPU microcomputer through an A/D converter, and the CPU microcomputer samples a voltage signal output by the micro-circuit amplifier through the A/D converter;
the CPU microcomputer is connected with the display screen and the sound reminding module, and the sound reminding module is used for giving out toxic gas alarm;
the CPU microcomputer is sequentially connected with the D/A converter and the drift suppression circuit, and the drift suppression circuit is used for suppressing and compensating the inert drift of the alarm;
the drift suppression circuit is connected with the microcircuit amplifier.
2. The toxic gas alarm of claim 1, wherein the CPU microcomputer is connected to a data interface for communication with a workstation.
3. The toxic gas alarm of claim 1, wherein the CPU microcomputer is further connected to a watchdog for monitoring the alarm status.
4. The toxic gas alarm of claim 1, wherein the power module comprises a charging socket, a battery pack, a voltage stabilizer and a power converter, the charging socket is connected with the battery pack and used for charging the battery pack, the A/D converter and the CPU microcomputer are connected for supplying power, and the battery pack supplies power to the calibrator sequentially through the voltage stabilizer and the power converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920623352.0U CN210037703U (en) | 2019-05-05 | 2019-05-05 | Toxic gas alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920623352.0U CN210037703U (en) | 2019-05-05 | 2019-05-05 | Toxic gas alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210037703U true CN210037703U (en) | 2020-02-07 |
Family
ID=69363314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920623352.0U Active CN210037703U (en) | 2019-05-05 | 2019-05-05 | Toxic gas alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210037703U (en) |
-
2019
- 2019-05-05 CN CN201920623352.0U patent/CN210037703U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20160093187A1 (en) | Sound and Temperature Sensors for Environmental Anomaly Detection | |
| CN204129120U (en) | A kind of lightning monitoring system | |
| US20190164404A1 (en) | Alarm signal output apparatus, detection alarm device, and detection alarm platform system | |
| CN102883256A (en) | High temperature alarming system and method for automobile sound equipment | |
| US11422527B2 (en) | Automatic inspection system | |
| CN104408862A (en) | Mobile terminal and smoke early warning method based on same | |
| CN110514927B (en) | Device abnormality detection method for mobile terminal, and computer-readable medium | |
| WO2018155270A1 (en) | Charging system, battery pack, and protection device | |
| CN210037703U (en) | Toxic gas alarm | |
| US20090015204A1 (en) | Method and apparatus for managing operations associated with a backup power source at a network terminal | |
| CN218385063U (en) | Universal circuit breaker with comprehensive sensing function | |
| CN105974183B (en) | Power-off short message alarm system and method | |
| CN104677428A (en) | Multifunctional indoor air detection device | |
| CN115097360A (en) | Elasticity detection device of earth connection buckle | |
| US20120293894A1 (en) | Supervision and protection for an electric capstan | |
| CN206832906U (en) | A kind of device power automatic detection device | |
| CN106161101A (en) | Power station OnCall short message alarm system automatic detection device for coat working state | |
| CN217238201U (en) | Power failure monitoring system for detecting instrument | |
| CN205810049U (en) | Detector for electric fire protection based on modified model two lines bus | |
| CN213042124U (en) | Multi-channel power supply management and control and alarm device | |
| CN205809156U (en) | A kind of power-off short message alarm system | |
| CN210721787U (en) | Presentation device and charging device | |
| CN212587005U (en) | Noise reminding device of energy storage inverter | |
| CN205829310U (en) | A kind of intelligent potential device based on big data | |
| CN210091353U (en) | Fuel cell hydrogen leakage detection alarm device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |