CN211317386U - Gas monitoring equipment with replaceable sensor - Google Patents
Gas monitoring equipment with replaceable sensor Download PDFInfo
- Publication number
- CN211317386U CN211317386U CN201921863174.5U CN201921863174U CN211317386U CN 211317386 U CN211317386 U CN 211317386U CN 201921863174 U CN201921863174 U CN 201921863174U CN 211317386 U CN211317386 U CN 211317386U
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- CN
- China
- Prior art keywords
- gas
- sensor
- communication interface
- controller
- shell
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- 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.)
- Expired - Fee Related
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 238000006467 substitution reaction Methods 0.000 claims description 5
- 238000012806 monitoring device Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 44
- 238000010586 diagram Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 102100032566 Carbonic anhydrase-related protein 10 Human genes 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 101000867836 Homo sapiens Carbonic anhydrase-related protein 10 Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model provides a sensor replaceable gas monitoring device, which comprises a monitoring host and at least one gas detection module; the monitoring host is connected with a patch panel, and the patch panel is provided with first communication interfaces corresponding to the number of the gas detection modules; the gas detection module comprises a shell, and a gas sensor, a temperature and humidity sensor and a second communication interface are arranged on the shell; a detection plate is arranged in the shell, a controller is arranged on the detection plate, and the controller is connected with the gas sensor and the temperature and humidity sensor and connected with a second communication interface; the second communication interface is in communication connection with the corresponding first communication interface in the adapter plate. The utility model provides a technical scheme, gaseous detection module adopts the modularized design, when detecting the gas of different grade type or when gaseous detection module breaks down, only need with the gaseous detection module of needs be connected to the keysets on can to solve among the prior art inconvenient problem of gas monitoring equipment change gas sensor.
Description
Technical Field
The utility model belongs to the technical field of gaseous monitoring, concretely relates to but sensor substitution gas monitoring equipment.
Background
The existing single sensor terminal cannot simultaneously complete gas monitoring and temperature and humidity monitoring, and only a single gas concentration can be monitored in the monitoring process by the single sensor terminal, and then the single gas concentration is uploaded to a system host. For locations where multiple gas concentrations need to be measured, multiple different gas detection modules are required.
The gas sensors in current gas monitoring devices can only detect specific types of gases, and different gas monitoring devices are required when detecting different types of gases. Secondly, the pins of the sensor are exposed to the outside for a long time, and are easily corroded by the environment. And different gas sensor monitor terminal uses different circuit and communication protocol, and compatibility is poor, and signal processing difficulty is higher to higher level system requirement and be unfavorable for product production debugging, increases the degree of difficulty when actually using.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the background art, the utility model provides a but sensor substitution gas monitoring facilities.
A sensor replaceable gas monitoring device comprises a monitoring host and at least one gas detection module; the monitoring host is connected with a patch panel, and the patch panel is provided with first communication interfaces corresponding to the number of the gas detection modules; the gas detection module comprises a shell, and a gas sensor, a temperature and humidity sensor and a second communication interface are arranged on the shell; a detection plate is arranged in the shell, a controller is arranged on the detection plate, and the controller is connected with the gas sensor and the temperature and humidity sensor and connected with a second communication interface; and the second communication interface is in communication connection with the corresponding first communication interface in the adapter plate.
Based on the above, the first communication interface and the second communication interface are both RS485 communication interfaces.
On the basis, the shell is further provided with an indicator lamp, and the controller is connected with the indicator lamp.
Based on the above, the detection board is provided with a power module, and the power module is connected with the power end of the controller.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model provides a but sensor substitution gas monitoring equipment, gaseous detection module adopt the modularized design, when detecting the gas of different grade type or when gaseous detection module breaks down, only need with the gaseous detection module of needs be connected to the keysets on can to solve among the prior art inconvenient problem of gas monitoring equipment change gas sensor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a replaceable gas monitoring device of a sensor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a gas monitoring terminal according to an embodiment of the present invention;
fig. 3 is a peripheral circuit diagram of a controller according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a power supply according to an embodiment of the present invention;
fig. 5 is a peripheral circuit diagram of the temperature and humidity sensor according to the embodiment of the present invention;
FIG. 6 is a circuit diagram of the periphery of an ozone sensor according to an embodiment of the present invention;
fig. 7 is a peripheral circuit diagram of RS485 in the embodiment of the present invention.
In the figure: 1. a housing; 2. a gas sensor; 3. a temperature and humidity sensor; 4. a second RS485 communication interface; 5. and an indicator light.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
The embodiment provides a but sensor substitution gas monitoring equipment to solve the inconvenient problem of gas monitoring equipment change gas sensor among the prior art.
But sensor alternate form gas monitoring facilities that this embodiment provided, its structure is as shown in fig. 1, including the monitoring host computer, the monitoring host computer is connected with the keysets, is provided with first RS485 communication interface on the keysets, and the monitoring host computer is connected with first RS485 communication interface, follows first RS485 communication interface and receives data.
A first RS485 communication interface on the adapter plate is connected with a gas monitoring terminal, the structure of the gas monitoring terminal is shown in figure 2 and comprises a shell 1, and a gas sensor 2, a temperature and humidity sensor 3 and a second RS485 communication interface 4 are arranged on the shell 1. The detection board is arranged in the shell 1 and provided with a controller and a power supply, the power supply is connected with a power supply end of the controller, and the controller is connected with the gas sensor 2, the temperature and humidity sensor 3 and the second RS485 communication interface 4. The first RS485 communication interface is in communication connection with the second RS485 communication interface, the controller detects concentration information of gas in the environment through the gas sensor 2, detects temperature and humidity information in the environment through the temperature and humidity sensor 3, and sends detected information to the detection host through the second RS485 communication interface.
The controller in this embodiment is a single chip microcomputer of LPC11C14 type, and its peripheral circuit is shown in fig. 3, where U1 is a single chip microcomputer of LPC11C14 type, Y is a 12MHz crystal oscillator, CA10 and C11 are capacitors, two ends of the crystal oscillator Y are connected to pin 6 and pin 7 of U1, and capacitor C10 and capacitor C11 are connected to a ground line at two ends of the crystal oscillator Y; the anode of the light emitting diode K is connected with the power supply through the resistor R10, and the cathode is connected with the pin 12 of the U1. The resistor R10 is used for limiting current, the LED K is used as an indicator lamp 5 and is arranged on the shell 1, the pin 12 of the U1 is at low potential, when the power supply is powered on, the LED K is powered on to start to emit light, and therefore whether the power supply is abnormal or not is judged according to whether the LED K emits light or not.
The peripheral circuit of the power supply is shown in fig. 4 and comprises a rectifying circuit based on a chip U2 with the model number of LH05_10D0505 and a voltage stabilizing circuit based on a chip U3 with the model number of SP1117M3.3, wherein C30, C31, C32, C33, C34, C35, C36, C37, C38 and C39 are capacitors, L1, L2, L3 and L4 are inductors, RTC protection resistors, and Rv is an adjustable resistor. Pin 2 and pin 3 of U2 are connected with the live wire and the zero line of external power respectively, and under the effect of chip U2, 5V dc voltage is output between pin 5 and pin 4, and between pin 8 and pin 7. The 5V DC voltage output by the chip U2 is input to pin 3 of U3, so that 3.3V DC voltage can be output from pin 2 of the chip U2. Pin 2 of the chip U2 is connected to the output of the power supply to provide 3.3V to the controller.
In this embodiment, the moderate temperature and humidity sensor 3 is a temperature and humidity sensor of HTU21D, and its peripheral circuit is shown in fig. 5, in which the IC1 is a temperature and humidity sensor HTU21D, a pin 1 and a pin 6 of which are respectively connected to a pin 16 and a pin 15 of the controller U1, and are respectively connected to the power output terminal through a pull-up resistor R51 and a pull-up resistor R52, the pin 2 is grounded, and the pin 5 is connected to the power output terminal. Temperature and humidity sensor 3 detects the temperature signal and the humidity signal of environment to send it to the controller, the controller sends it from first RS485 communication interface for the host computer.
The gas sensor in this embodiment is an ozone sensor of model MQ131, and the peripheral circuit is shown in fig. 6, where IC2 is an ozone sensor of model MQ131, pin 1 is connected to the output terminal of the power supply, pin 2 is connected to the 5V voltage in the power supply, pin 4 is connected to a voltage dividing circuit composed of resistors R61 and R62, and the voltage dividing point of the voltage dividing circuit is connected to the 32 pins of the controller U1 through resistor R63.
In this embodiment, the first RS485 communication interface and the second RS485 communication interface both use an RS485 communication interface based on a chip SP3485, and taking the second RS485 communication interface as an example, as shown in fig. 7, where the IC3 is a chip with a model SP3485, R71, R72, R73, R74, and R75 are resistors, Q is a triode, TVS1, TVS2, and TVS3 are voltage regulators, F1 and F2 are fuses, P is an interface, pin 6 and pin 7 of the chip IC3 are connected to pin 3 and pin 4 in the interface P, pin 1 of P is connected to a power supply, and pin 4 is grounded. Pin 1 and pin 4 of the chip IC3 are connected to pin 46 and pin 47 of the controller U1, respectively, and the controller transmits and receives data via the chip IC3 and the connector P.
Other types of gas sensors may be used as other embodiments, such as carbon monoxide sensors, methane sensors, hydrogen sulfide sensors, ammonia sensors, benzene sensors, alcohol sensors, and the like.
As other implementation manners, the adapter plate may be provided with a plurality of first RS485 communication interfaces, each first RS485 communication interface is connected to one gas detection module, and the gas sensors of the gas detection modules may be the same or different, for example, when the adapter plate is provided with three first RS485 communication interfaces, the gas sensors of the three connected gas detection modules are respectively a carbon monoxide sensor, a methane sensor, and a hydrogen sulfide sensor.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides a gaseous monitoring facilities of sensor substitution which characterized in that: the system comprises a monitoring host and at least one gas detection module; the monitoring host is connected with a patch panel, and the patch panel is provided with first communication interfaces corresponding to the number of the gas detection modules; the gas detection module comprises a shell, and a gas sensor, a temperature and humidity sensor and a second communication interface are arranged on the shell; a detection plate is arranged in the shell, a controller is arranged on the detection plate, and the controller is connected with the gas sensor and the temperature and humidity sensor and connected with a second communication interface; and the second communication interface is in communication connection with the corresponding first communication interface in the adapter plate.
2. The sensor-replaceable gas monitoring apparatus of claim 1, wherein: the first communication interface and the second communication interface are both RS485 communication interfaces.
3. The sensor-replaceable gas monitoring apparatus of claim 1, wherein: still be provided with the pilot lamp on the casing, the controller is connected with the pilot lamp.
4. The sensor-replaceable gas monitoring apparatus of claim 1, wherein: the detection board is provided with a power module, and the power module is connected with a power end of the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921863174.5U CN211317386U (en) | 2019-11-01 | 2019-11-01 | Gas monitoring equipment with replaceable sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921863174.5U CN211317386U (en) | 2019-11-01 | 2019-11-01 | Gas monitoring equipment with replaceable sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211317386U true CN211317386U (en) | 2020-08-21 |
Family
ID=72058329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921863174.5U Expired - Fee Related CN211317386U (en) | 2019-11-01 | 2019-11-01 | Gas monitoring equipment with replaceable sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211317386U (en) |
-
2019
- 2019-11-01 CN CN201921863174.5U patent/CN211317386U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 |