CN209182305U - Hydrogen sulfide collector - Google Patents
Hydrogen sulfide collector Download PDFInfo
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- CN209182305U CN209182305U CN201821839668.5U CN201821839668U CN209182305U CN 209182305 U CN209182305 U CN 209182305U CN 201821839668 U CN201821839668 U CN 201821839668U CN 209182305 U CN209182305 U CN 209182305U
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Abstract
The utility model discloses a kind of hydrogen sulfide collectors, including calibrating installation and detector, detector includes power supply module, collector module, top control module, data transmit-receive module and display module, wherein, voltage needed for system power source voltage is reduced to remaining each module by power supply module respectively and be remaining each module for power supply；Collector module is transferred to top control module after being converted the collected signal of hydrogen sulfide sensor；Top control module plays processing control action to acquisition system, and receives the signal of collector module input, then be output to data transmit-receive module and display module；The signal for handling chip output is transferred to host computer by data transmit-receive module；Display module is used to show the signal for handling chip output.
Description
Technical field
The utility model relates to wireless sensor field, specifically a kind of hydrogen sulfide collector.
Background technique
People in order to from the external world obtain information, it is necessary to by means of sense organ, and depend merely on the sense organ of people itself,
Their function is just far from much of that in research natural phenomena and rule and production activity.To adapt to such case, it is necessary to
Sensor.Sensor (English name: transducer/sensor) is a kind of detection device, can experience measured information,
And the information that can will be experienced, it is for conversion into electric signal or the information output of other required forms, according to certain rules to meet letter
The requirement such as transmission, processing, storage, display, record and control of breath.The presence and development of sensor, allow object to have tactile, taste
The sense organs such as feel and smell, allow object slowly to become to have lived.Accordingly, it can be said that sensor is the extension of mankind's face, also known as
For electric face.
The arrival of new technology revolution, the world initially enter the information age.During using information, solution is first had to
It seeks to obtain accurately and reliably information, and sensor is obtained from the main path and means of information in right and production field.
Sensor penetrates into such as industrial production, space development, hydrospace detection, environmental protection, resource investigation, medical diagnosis, life already
The extremely general field of object engineering, even historical relic's protection etc..Almost each modernization project, all be unable to do without various
Sensor.It can be seen that sensor technology plays a significant role in terms of developing the economy, pushing social progress.
Hydrogen sulfide sensor is one kind of sensor, it can detect the concentration of hydrogen sulfide in environment, is mainly used for monitoring sulphur
Change hydrogen leakage.Hydrogen sulfide sensor can detect in the long-term use will appear offset, causes testing result inaccurate, needs
It is calibrated to keep accuracy in detection, and existing hydrogen sulfide sensor transmission signal using 2.4G and 433MHz compared with
More, corresponding problem is exactly that same band interference is too many.779~787 MHz are the free working frequencies that China newly opens, and interference is few,
Laser propagation effect is good, but the hydrogen sulfide sensor that also there is no 779~787 MHz of adaptation to transmit in the prior art, and therefore, it is necessary to design
A kind of new hydrogen sulfide collector.
Utility model content
Utility model aims to solve the above problem of existing hydrogen sulfide sensor, provides a kind of hydrogen sulfide and adopt
Storage can calibrate sensor when applying, while the collected signal of sensor is converted into RS485 and 779MHZ and is believed
Number and be wirelessly transferred.
The purpose of this utility model is achieved through the following technical solutions:
A kind of hydrogen sulfide collector, the hydrogen sulfide collector include calibrating installation and detector, and calibrating installation includes mark
Quasi- gas cylinder, gas chamber, gas chamber are equipped with the first tracheae and the second tracheae, and the first tracheae connects calibrating gas bottle, and the connection of the second tracheae is outer
Portion space is equipped with air pump and valve on the first tracheae, on the second tracheae；Detector includes power supply module, collector module, always
Control module, data transmit-receive module and display module, wherein
The power supply module include the first reduction voltage circuit and the second reduction voltage circuit, the first reduction voltage circuit input terminal be
Power supply of uniting connects, and the first reduction voltage circuit output end is connect with the second reduction voltage circuit and collector module respectively, second decompression
Circuit input end is connect with the first reduction voltage circuit output end, the second reduction voltage circuit output end respectively with top control module, data transmit-receive
Module is connected with display module；Voltage needed for system power source voltage is reduced to remaining each module by the power supply module respectively and be its
Remaining each module for power supply；
The collector module includes hydrogen sulfide sensor J2 and conversion circuit, collector module input and power supply module
Output end connection, collector module output end are connect with top control module, and collector module is collected by hydrogen sulfide sensor J2
Signal is transferred to top control module after being converted by conversion circuit；
The top control module plays processing control action to acquisition system, and the top control module includes processing chip U2 and program
Downloader ISP, the processing chip U2 respectively with collector module, data transmit-receive module, Program download ISP, display module
Connection, processing chip U2 receive the signal of collector module input, and processing is output to data transmit-receive module and display module；
The data transmit-receive module includes RS485 transmission circuit and 779MHZ wirelessly transferred chip J3, data transmit-receive module
The signal for handling chip U2 output is transferred to host computer, the RS485 transmission circuit and 779MHZ wirelessly transferred chip J3 are equal
It is connect with processing chip U2；
The display module is connect with processing chip U2, for showing the data for handling chip U2 output.
Preferably, first reduction voltage circuit includes DC/DC chip U1, resistance R1 to R5, capacitor C1 to C7, diode D1
And D2, inductance L1, system power supply are separately connected the one end C1, the one end R1 and U1vin pin after connecting D1, the R1 other end connects U1en
The one end R2 is connected after pin, C1 the and R2 other end is grounded, and is grounded after U1ss pin connection C3, after U1boot pin connects C2
Be separately connected U1ph pin, D2 cathode and the one end L1, the L1 other end is sequentially connected behind the one end C5 and C6 connect the one end R4 after connect again
5V output, U1gnd pin are grounded after connecting D2 anode, C5 the and C6 other end, connect R5 after the U1vsns pin connection R4 other end
One end, R5 other end ground connection, U1comp pin connect compensation circuit.
Preferably, second reduction voltage circuit includes DC/DC chip U5, resistance R27 and R28, capacitor C13, C15 and C16,
U5 pin 1 connects connect U5 pin 2 behind the one end C13 after connect the first reduction voltage circuit input terminal again, the C13 other end, U5 pin 0 and draw
Foot 3 is grounded, and connects 3.3V output again after the one end C15 and the one end C16 are separately connected behind the connection of U5 pin 4 one end R27, R27 is another
End connects U5 pin 5 behind connection one end R28, and C16, C15 and R28 other end are grounded.
Preferably, the conversion circuit include MAX485 chip U3, U3 pin 1 and pin 4 with hydrogen sulfide sensor J2
It is connected with processing chip U2, pin 2, pin 3 and pin 4 are connect with the first automatic control transmission circuit, and pin 5 is grounded, pin 6
Connect the first bus circuit with pin 7, U3 pin 8 connect behind the one end capacitor C10 with connect the second reduction voltage circuit output end, capacitor C10 is another
One end ground connection.
Preferably, the RS485 transmission circuit include MAX485 chip U4, U4 pin 1 and pin 4 respectively with processing chip
U2 is connected, and pin 2, pin 3 and pin 4 are connect with the second automatic control transmission circuit, and pin 5 is grounded, and pin 6 and pin 7 connect
Second bus circuit, U4 pin 8 connect behind the one end capacitor C14 with connect the second reduction voltage circuit output end, capacitor C14 other end ground connection.
In conclusion the utility model has the following beneficial effects:
1, it is transmitted using RS485 and 779MHZ signal, is suitable for several scenes, practicability is high, and interference is small, and can
Simply and easily sensor is calibrated.
2, using multilevel decompression circuit, disparate modules power supply requirement is adapted to.
3, data transmit-receive module and display screen setting so that acquisition signal can Wireless-wire transmission again can display real-time.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of one calibrating installation of the utility model.
Fig. 2 is ammonia collector modular system block diagram.
Fig. 3 is the first reduction voltage circuit figure.
Fig. 4 is the second reduction voltage circuit figure.
Fig. 5 is sensor module circuit diagram.
Fig. 6 is top control module schematic diagram.
Fig. 7 is RS485 transmission circuit figure.
Fig. 8 is 779MHZ wirelessly transferred chip schematic diagram.
Fig. 9 is display module schematic diagram.
Specific embodiment
Multiple embodiments that the utility model will be disclosed with schema below, as clearly stated, in many practices
Details will be explained in the following description.It should be appreciated, however, that the details in these practices does not apply this with limitation practical
It is novel.That is, the details in these practices is non-essential in some embodiments of the utility model.In addition, being
For the sake of simplifying schema, some known usual structures and component will be painted it in the drawings in simply illustrative mode.
It should be noted that unless otherwise clearly defined and limited, term " setting ", " connected ", " connects " installation "
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, it can understand that above-mentioned term is practical new at this with concrete condition
Concrete meaning in type.
Embodiment:
As shown in Figure 1, a kind of hydrogen sulfide collector, including calibrating installation and detector 3, calibrating installation include Standard Gases
Bottle 1, for providing calibration standard volume, gas chamber 2, detector 3 is mounted in gas chamber 2, and gas chamber 2 is equipped with the first tracheae 4 and second
Tracheae 5, the first tracheae 4 connect calibrating gas bottle 1, and the second tracheae 5 connects exterior space, on the first tracheae 4, on the second tracheae 5
Equipped with air pump and valve；When needing to calibrate sensor, the second tracheae air pump and valve are closed, opens the first tracheae gas
Pump and valve, Standard Gases are pumped into gas chamber, and detector detect and be compared with standard volume, and according to comparison result to vulcanization
Hydrogen sensor parameter is modified；After the completion of calibration, the first tracheae air pump and valve are closed, opens the second tracheae air pump and valve
Door, detects external space gases.
Detector 3 includes power supply module, collector module, top control module, data transmit-receive module and display module, mould of powering
Block includes the first reduction voltage circuit and the second reduction voltage circuit, and the first reduction voltage circuit input terminal is connect with system power supply, the first decompression electricity
Road output end is connect with the second reduction voltage circuit and collector module respectively, and the second reduction voltage circuit input terminal and the first reduction voltage circuit are defeated
Outlet connection, the second reduction voltage circuit output end are connect with top control module, data transmit-receive module and display module respectively；Power supply module
Voltage needed for system power source voltage to be reduced to remaining each module respectively and be remaining each module for power supply.Collector module includes vulcanization
Hydrogen sensor J2 and conversion circuit, collector module input are connect with power supply module output end, collector module output end with
Top control module connection, collector module are transmitted after being converted the collected signal of hydrogen sulfide sensor J2 by conversion circuit
To top control module.Top control module plays processing control action to acquisition system, and top control module includes processing chip U2 and program downloading
Device ISP, U2 model ATMEGA640V, processing chip U2 respectively with collector module, data transmit-receive module, Program download
ISP, display module connection, processing chip U2 receive collector module input signal, processing be output to data transmit-receive module and
Display module.Data transmit-receive module includes RS485 transmission circuit and 779MHZ wirelessly transferred chip J3, J3 are highly integrated core
Piece, data transmit-receive module are transferred to host computer for the signal that chip U2 is exported is handled, and RS485 transmission circuit and 779MHZ are wirelessly passed
Defeated chip J3 is connect with processing chip U2.Display module is connect with processing chip U2, for that will handle the letter of chip U2 output
It number shows.
Wherein, top control module, 779MHZ wirelessly transferred chip J3 and display module are the prior art, J3 model
AT86RF212D, circuit as shown in Fig. 6, Fig. 8 and Fig. 9, are not described specifically circuit structure herein respectively.
As shown in figure 3, the first reduction voltage circuit includes DC/DC chip U1, U1 model TPS54331, resistance R1 to R5, electricity
Hold C1 to C7, diode D1 and D2, inductance L1.The one end C1, the one end R1 and U1vin is separately connected after system power supply connection D1 to draw
Foot, the R1 other end connect the one end R2 after connecting U1en pin, C1 the and R2 other end is grounded, and U1ss pin connection C3 is followed by
Ground, C1 constitutes the slow circuit of under-voltage locking to system power supply voltage regulation filtering, R1 and R2 in foregoing circuit, for when input voltage it is low
When a certain value, U1 does not work in guard mode, and C3 plays the role of delaying starting.U1 boot pin is distinguished after connecting C2
Connect U1ph pin, D2 cathode and the one end L1, the L1 other end is sequentially connected behind the one end C5 and C6 connect the one end R4 after export 5V again
Voltage source, U1gnd pin are grounded after connecting D2 anode, C5 the and C6 other end, are connected after the U1vsns pin connection R4 other end
The one end R5, the R5 other end ground connection, U1comp pin connect compensation circuit, specifically, comp pin respectively with the one end capacitor C4 and
The connection of the one end capacitor C7, C7 other end ground connection, the C4 other end are grounded after connecting with resistance R3.In foregoing circuit, L1, C5 and C6 structure
It is filtered at LC and inhibits interference, D2 cathode is connect with L1, when the electric current of L1 load has mutation, is played the role of smooth variation, is kept away
Exempt to destroy other elements.First reduction voltage circuit is realized by U1 and its peripheral circuit drops to 5V output for system power source voltage 12V,
For hydrogen sulfide sensor power supply.
As shown in figure 4, the second reduction voltage circuit includes DC/DC chip U5, U5 model TPS75801, resistance R27 and R28,
Capacitor C13, C15 and C16, U5 pin 1 connect the one end C13 after connect U5 pin 2 after meet the first reduction voltage circuit output end, C13 again
The other end, U5 pin 0 and pin 3 are grounded, and U5 pin 4 is separately connected behind the one end C15 and the one end C16 again after connecting the one end R27
3.3V voltage source is exported, the R27 other end connects U5 pin 5 after connecting the one end R28, and C16, C15 and R28 other end are grounded.
First reduction voltage circuit output end 5V voltage is reduced to 3.3V by U5 and its peripheral circuit and exported by the second reduction voltage circuit, for conversion electricity
Road, processing chip U2, RS485 transmission circuit, 779MHZ wirelessly transferred chip J3, display module and ISP power supply.
By above-mentioned two-stage bleeder circuit, voltage needed for system power source voltage is reduced to remaining each module by realization respectively is simultaneously
Remaining each module for power supply.
As shown in figure 5, conversion circuit includes MAX485 chip U3, resistance R7, R8, R10, R11, R14 and R15, capacitor
C10, triode Q1, diode D3 to D5, connecting terminal J1.U3 pin 1 and pin 4 with hydrogen sulfide sensor J2 and processing core
Piece U2 is connected, and U3 pin 2, pin 3, pin 4 also connect, specifically, U3 pin 2 and pin with the first automatic control transmission circuit
Q1 collector is connect after connecting after 3 connections with the one end R15 again, R15 other end ground connection, U3 pin 4 is connect with R14 is followed by Q1 base stage,
Q1 emitter connects the second reduction voltage circuit output end.U3 pin 5 is grounded, and U3 pin 6 and pin 7 connect bus circuit, and specifically, U3 draws
Foot 6 is connect after connecting respectively with the one end R7, the one end R11, D5 anode, D3 cathode with J1 pin 2, U3 pin 7 and the one end R8, R11
It is connect after the other end, D5 cathode, the connection of D4 cathode with J1 pin 3, R7 the second reduction voltage circuit output end of another termination, the R8 other end
Ground connection, D3 anode are grounded after connecting with D4 anode.U3 pin 8 connect behind the one end C10 with connect the second reduction voltage circuit output end, C10 is another
One end ground connection.Conversion circuit realizes the RS485 signal conversion of acquisition signal by U3 and its peripheral circuit, processing chip U2.
As shown in fig. 7, RS485 transmission circuit includes MAX485 chip U4, resistance R9, R10, R12, R14, R16 and R17,
Capacitor C14, diode D6 to D8, triode Q2, connecting terminal J4.U4 pin 1 and pin 4 are connected with processing chip U2, draw
Foot 2, pin 3, pin 4 with second automatic control transmission circuit connect, specifically, U4 pin 2 connection pin 3 after with the one end R17
Connection is followed by triode Q2 collector, R17 other end ground connection, and U4 pin 4 is connect after connecting with R16 with Q2 base stage, Q2 emitter
Connect the second reduction voltage circuit output end.U4 pin 5 is grounded, and U4 pin 6 and pin 7 connect the second bus circuit, specifically, U4 pin 6
Connect after being connect respectively with the one end R9, the one end R12, D8 anode, D6 cathode with J4 pin 3, U4 pin 7 respectively with the one end R10,
It is connect after the R12 other end, D8 cathode, the connection of D7 cathode with J4 pin 2, R9 the second reduction voltage circuit output end of another termination, R10 is another
One end ground connection, D6 anode are grounded after connecting with D7 anode.U4 pin 8 connect behind the one end capacitor C14 with connect the output of the second reduction voltage circuit
End, capacitor C14 other end ground connection.The RS485 signal for handling chip input is passed through the second bus circuit and connecting terminal J4 by U4
It is transferred to host computer.
Workflow is as follows: processing chip is connect with collector module, data transmit-receive module, display module respectively, then is led to
Program download download control program is crossed, to realize that top control module to the processing control action of acquisition system, handles chip and connects
The signal for receiving hydrogen sulfide sensor acquisition, is converted to RS485 signal by 485 conversion circuits, then is output to RS485 transmission electricity
Road transmits a signal to host computer by the second bus circuit and connecting terminal；Hydrogen sulfide sensor can be acquired simultaneously
Signal is output to 779MHZ wirelessly transferred chip, converts a signal into 779MHZ signal and radios to host computer.Processing
Acquisition signal can be also transferred to display screen and shown by chip.
The above content is the further descriptions made in conjunction with specific preferred embodiment to the utility model, cannot recognize
Determine specific embodiment of the present utility model to be only limited to these instructions.For the common skill of the utility model technical field
For art personnel, the other embodiments obtained in the case where not departing from the technical solution of the utility model be should be included in practical
In novel protection scope.
Claims (5)
1. a kind of hydrogen sulfide collector, it is characterised in that: the hydrogen sulfide collector includes calibrating installation and detector, calibration
Device includes calibrating gas bottle, gas chamber, and gas chamber is equipped with the first tracheae and the second tracheae, and the first tracheae connects calibrating gas bottle, and second
Tracheae connects exterior space, is equipped with air pump and valve on the first tracheae, on the second tracheae；Detector includes power supply module, is adopted
Storage module, top control module, data transmit-receive module and display module, wherein
The power supply module includes the first reduction voltage circuit and the second reduction voltage circuit, and the first reduction voltage circuit input terminal and system are electric
Source connection, the first reduction voltage circuit output end are connect with the second reduction voltage circuit and collector module respectively, second reduction voltage circuit
Input terminal is connect with the first reduction voltage circuit output end, the second reduction voltage circuit output end respectively with top control module, data transmit-receive module
It is connected with display module；Voltage needed for system power source voltage is reduced to remaining each module by the power supply module respectively is simultaneously each for remaining
Module for power supply；
The collector module includes hydrogen sulfide sensor J2 and conversion circuit, and collector module input and power supply module export
End connection, collector module output end connect with top control module, and collector module is by the collected signal of hydrogen sulfide sensor J2
Top control module is transferred to after being converted by conversion circuit；
The top control module plays processing control action to acquisition system, and the top control module includes processing chip U2 and program downloading
Device ISP, the processing chip U2 are connect with collector module, data transmit-receive module, Program download ISP, display module respectively,
The signal that chip U2 receives the input of collector module is handled, processing is output to data transmit-receive module and display module；
The data transmit-receive module includes RS485 transmission circuit and 779MHZ wirelessly transferred chip J3, and data transmit-receive module will be located
The signal of reason chip U2 output is transferred to host computer, the RS485 transmission circuit and 779MHZ wirelessly transferred chip J3 with place
Manage chip U2 connection；
The display module is connect with processing chip U2, for showing the data for handling chip U2 output.
2. a kind of hydrogen sulfide collector according to claim 1, it is characterised in that: first reduction voltage circuit includes DC/
DC chip U1, resistance R1 to R5, capacitor C1 to C7, diode D1 and D2, inductance L1 are separately connected C1 after system power supply connection D1
One end, the one end R1 and U1vin pin, the R1 other end connect the one end R2 after connecting U1en pin, C1 the and R2 other end is grounded,
It is grounded after U1ss pin connection C3, it is another to be separately connected U1ph pin, D2 cathode and the one end L1, L1 after U1boot pin connection C2
It holds and connects 5V output after connecting the one end R4 after being sequentially connected the one end C5 and C6 again, U1gnd pin connects D2 anode, C5 the and C6 other end
After be grounded, U1vsns pin connect the R4 other end after connect the one end R5, the R5 other end ground connection, U1comp pin connection compensation electricity
Road.
3. a kind of hydrogen sulfide collector according to claim 1, it is characterised in that: second reduction voltage circuit includes DC/
DC chip U5, resistance R27 and R28, capacitor C13, C15 and C16, U5 pin 1 connect the one end C13 after connect U5 pin 2 after connect again
First reduction voltage circuit output end, the C13 other end, U5 pin 0 and pin 3 are grounded, and U5 pin 4 connects respectively after connecting the one end R27
Connect and connect 3.3V output behind the one end C15 and the one end C16 again, the R27 other end, which connects, connects U5 pin 5 behind the one end R28, C16, C15 and
The R28 other end is grounded.
4. a kind of hydrogen sulfide collector according to claim 1, it is characterised in that: the conversion circuit includes MAX485 core
Piece U3, U3 pin 1 and pin 4 are connected with hydrogen sulfide sensor J2 and processing chip U2, pin 2, pin 3 and pin 4 and the
One automatically controls transmission circuit connection, and pin 5 is grounded, and pin 6 and pin 7 connect the first bus circuit, and U3 pin 8 meets capacitor C10
Behind one end and the second reduction voltage circuit output end is connect, the capacitor C10 other end is grounded.
5. a kind of hydrogen sulfide collector according to claim 1, it is characterised in that: the RS485 transmission circuit includes
MAX485 chip U4, U4 pin 1 and pin 4 are connected with processing chip U2 respectively, and pin 2, pin 3 and pin 4 and second are automatically
Transmission circuit connection is controlled, pin 5 is grounded, and pin 6 and pin 7 connect the second bus circuit, after U4 pin 8 connects the one end capacitor C14
With connect the second reduction voltage circuit output end, capacitor C14 other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821839668.5U CN209182305U (en) | 2018-11-08 | 2018-11-08 | Hydrogen sulfide collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821839668.5U CN209182305U (en) | 2018-11-08 | 2018-11-08 | Hydrogen sulfide collector |
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| Publication Number | Publication Date |
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| CN209182305U true CN209182305U (en) | 2019-07-30 |
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ID=67363639
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821839668.5U Active CN209182305U (en) | 2018-11-08 | 2018-11-08 | Hydrogen sulfide collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324248A (en) * | 2021-12-30 | 2022-04-12 | 福建中电合创电力科技有限公司 | Smoke detector detection circuit |
-
2018
- 2018-11-08 CN CN201821839668.5U patent/CN209182305U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324248A (en) * | 2021-12-30 | 2022-04-12 | 福建中电合创电力科技有限公司 | Smoke detector detection circuit |
| CN114324248B (en) * | 2021-12-30 | 2024-02-23 | 福建中电合创电力科技有限公司 | Smoke detector detection circuit |
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