CN208298382U - Acquisition channel for surface weather station - Google Patents
Acquisition channel for surface weather station Download PDFInfo
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- CN208298382U CN208298382U CN201820958831.3U CN201820958831U CN208298382U CN 208298382 U CN208298382 U CN 208298382U CN 201820958831 U CN201820958831 U CN 201820958831U CN 208298382 U CN208298382 U CN 208298382U
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- acquisition channel
- acquisition
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Abstract
The utility model provides a kind of acquisition channel for surface weather station, it includes central data collector, decoder, multiplexer, multiple acquisition channels and multiple sensors, any one described sensor can be connect with any one acquisition channel, the central data collector communication connection has remote monitoring terminal, central data collector passes through data line and the decoder communication connection and can send one group of binary-coded decimal to the decoder, the decoder and acquisition channel communication connection simultaneously can be such that the acquisition channel connects after one group of binary-coded decimal for receiving central data collector transmission to any one acquisition channel transmission control signal, and sensor corresponding with the acquisition channel is connected by means of multiplexer.The utility model structure is simple, compared to existing acquisition channel, has the advantages that maintenance and repair is convenient, flexible, general, Anti-misplug.
Description
Technical field
The utility model relates to communication fields, more particularly to a kind of acquisition channel for surface weather station.
Background technique
As the progress of meteorological sounding technique and modern weather forecast develop towards fining direction, my company is sufficiently investigated
Domestic and international meteorological equipment technology and military meteorology demand, to realize meteorological power and the target that strengthens the army, the outer import of surrogate in high precision,
High reliability automatic weather station, the especially requirement for the advanced military equipment of adaptation to meteorological support, appropriate advance independent development
The ground intelligent Meteorological Observation Systems of customized more elements.
Ground intelligent Meteorological Observation System is a kind of automatic weather station that can observe and store meteorological measuring.This system
Collector obtains multiple meteorological element values after being acquired, parse and handling to the data of each sensor, then will by communication system
Meteorological element data packet sends the monitoring display terminal software of user terminal to by wired or wireless way transmission mode, and monitoring is aobvious
Show terminal software data packet is parsed, is handled, Quality Control, then carry out more elements show, storage, data sharing etc..Data
Collector can keep in a certain amount of data.Automatic weather station can round-the-clock, continuous, the multiple weather informations of automatic Observation, improve
Observation timeliness, the labor intensity that eliminates traditional artificial thermometer screen error in reading, alleviate Observation personnel.The equipment is answered
With, for surface weather observation automation lay a good foundation.Automatic weather station meteorology, farming and animal husbandry, forestry, navigation, industry spot,
The multiple fields such as aviation, environmental protection and scientific experiment are widely used.
This system weather station can measurement element according to demand flexibly arrange in pairs or groups various sensors, have that detection element is complete, intelligence
Can degree is high, detection accuracy is high, it is low in energy consumption, resist strong magnetic disturbance, waterproof, anticorrosion, it is small in size the advantages that.
Surface weather observation system generally uses " application terminal+data collector+bus+sensor+corollary equipment "
Frame mode.Data collector is installed in vasculum.It is customized to have the more elements of development for You Duo company currently on the market
The ability of surface weather observation system, the vasculum of each company have multi pass acquisition channel, for acquiring multiple meteorological biographies
Sensor data.Recognize have other several the father-in-law for developing more customized surface weather observation systems of element according to market survey
Though the vasculum of department is using multichannel, all corresponding unique sensor of each acquisition channel, an acquisition channel " binding " is uniquely
A kind of sensor, the unique passage that every kind of sensor can only connect to corresponding mark could be collected data, sensor
There are certain limitations with the relationship of acquisition channel " 1 pair 1 be fixed ":
Maintenance trouble.The existing each acquisition channel of acquisition channel technology can only connect a kind of unique sensor, for example,
If channel one (wind direction acquisition channel) breaks down, wind direction data will be unable to be collected, and will lose wind direction sensing
Device data.Words to be repaired are pretty troublesome, need to dismantle cabinet, each point of acquisition channel tested, to determine whether acquisition channel is deposited
In failure.And when wind direction acquisition channel breaks down, also bad judgement is that acquisition channel have failed or sensor
It has failed.Failure is surveyed once wind direction data occur and losing to lack, maintenance and repair is pretty troublesome, and the time between overhauls(TBO) is spun out.
It is not flexible, not general, easy wrong plug: the existing each channel of acquisition channel technology when leaving the factory by uniquely change, quilt
Unique " label " has been sticked, unique a certain sensor, channel competence exertion effect are only connected.This allows for wind speed
Sensor can only connect wind speed acquisition channel interface, could work, if being connected to humidity collection channel, that cannot normal work
Make, air speed data will be lacked.Acquisition channel is all solidified by factory, sticks unique tags, not only not flexible, not general, such as uses
If acquisition channel is unfamiliar at family, air velocity transducer is accidentally connected to humidity collection channel, also will cause and led because mispluging
The air speed data of cause lacks.
Utility model content
In order to overcome the drawbacks of the prior art, the utility model provides a kind of multi-channel intelligent acquisition system, structure letter
It is single, easy to maintenance, using flexible.
Specifically, the utility model provides a kind of acquisition channel for surface weather station comprising central data acquisition
Device, decoder, multiplexer, multiple acquisition channels and multiple sensors, any one described sensor can with it is any
One acquisition channel connection, the central data collector communication connection have remote monitoring terminal,
The central data collector is by data line and the decoder communication connection and can send out to the decoder
It send one group of binary-coded decimal, the decoder and acquisition channel communication connection and the one of central data collector transmission can received
Sending control signal to any one acquisition channel after group binary-coded decimal connects the acquisition channel, and is connected by means of multiplexer
Sensor corresponding with the acquisition channel is connect,
The acquisition channel includes filter circuit, lightning protection circuit, signal conversion circuit and communication interface, and the communication connects
Mouth includes the first communication interface and the second communication interface, and first communication interface connects the sensor, and being used for will be described
Input terminal of the circuit transmission of sensor acquisition to the filter circuit, the output end connection signal turn of the filter circuit
The input terminal of circuit is changed, the output end of the signal conversion circuit connects second communication interface, the signal conversion circuit
Be configured to the differential signal of input be converted to Transistor-Transistor Logic level signal be transmitted to second communication interface and by Transistor-Transistor Logic level
Signal is converted to differential signal transmission to first communication interface,
The lightning protection circuit includes anti-thunder tube, Transient Suppression Diode and resistance, anti-thunder tube and Transient Suppression Diode
It is connected between communication line and ground, when the voltage on communication line is higher than voltage rating, anti-thunder tube and transient state inhibit two poles
Pipe can absorb too high voltages and surge, and resistance is connected in communication line, and being configured to of the resistance carries out partial pressure protection.
Preferably, it is connected between the sensor and the central data collector by RS485 bus.
Preferably, the filter circuit is low-pass filter circuit, is configured to inhibit high-frequency signal, filters out the height of mutation
Frequency interferes.
Preferably, central data collector connects the remote monitoring terminal by means of communication terminal.
Preferably, the acquisition channel is provided with 12.
Compared with prior art, the utility model has the following beneficial effects:
The utility model structure is simple, compared to existing acquisition channel, convenient, flexible, the general, anti-plug with maintenance and repair
Wrong, intelligentized advantage.Acceptor center data acquisition be device control, after channel, which is enabled, allows opening, sensing data or
Order is inputted by communication interface, then low-pass filtered circuit, lightning protection circuit, signal conversion circuit, most afterwards through communication interface
It sends out.Low-pass filter circuit plays high-frequency signal and is inhibited, the effect for avoiding high-frequency signal from interfering.Lightning protection circuit rises and prevents from being struck by lightning
Or surge impact caused by alternating current shakiness damages.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the electrical block diagram of the utility model；
Fig. 3 is the structural schematic diagram of the utility model embodiment.
Specific embodiment
The exemplary embodiment, feature and aspect of the utility model are described in detail below with reference to attached drawing.It is identical in attached drawing
Appended drawing reference indicate element functionally identical or similar.Although the various aspects of embodiment are shown in the attached drawings, remove
It non-specifically points out, it is not necessary to attached drawing drawn to scale.
The utility model provides a kind of acquisition channel for surface weather station, as shown in attached drawing 1 and attached drawing 2 comprising
Central data collector 1, decoder 2, multiplexer 3, multiple acquisition channels 4 and multiple sensors 5, any one sensing
Device 5 can be connect with any one acquisition channel 4, and 1 communication connection of central data collector has remote monitoring terminal 11.
Central data collector 1 passes through data line and decoder communication connection and can send one group of BCD to decoder 2
Code, decoder 2 and 4 communication connection of acquisition channel and can after receiving one group of binary-coded decimal that central data collector is sent to
Any one acquisition channel 4, which sends control signal, connects the acquisition channel, and by means of the connection of multiplexer 3 and the acquisition
The corresponding sensor 5 in channel 4.
Acquisition channel 4 includes filter circuit 6, lightning protection circuit 7, signal conversion circuit 8 and communication interface, communication interface packet
The first communication interface 91 and the second communication interface 92 are included, the first communication interface 91 connects sensor 5, for detecting sensor
Data be transmitted to the input terminal of filter circuit 6, the input terminal of the output end connection signal conversion circuit 8 of filter circuit 6, signal
The output end of conversion circuit 8 connects the second communication interface 92, the differential electric signal for being configured to input of signal conversion circuit 8
It is converted to Transistor-Transistor Logic level signal and is transmitted to the second communication interface 92, and the Transistor-Transistor Logic level signal of input is converted into differential signal and is passed
Transport to the first communication interface 91.
Lightning protection circuit 7 includes anti-thunder tube, Transient Suppression Diode and resistance, and anti-thunder tube is connect with Transient Suppression Diode
Between communication line and ground, when the voltage on communication line is higher than voltage rating, anti-thunder tube and Transient Suppression Diode meeting
It absorbs too high voltages and surge, resistance is connected in communication line, resistance is configured to carry out partial pressure protection rear class.
Preferably, it is connected between sensor 5 and central data collector 1 by RS485 bus.
Preferably, filter circuit 6 is low-pass filter circuit, is configured to inhibit high-frequency signal, filters out the high frequency of mutation
Interference.
Preferably, acquisition channel is provided with 12.
As shown in Fig. 2, acquisition channel 4 is mainly the channel that each sensing data is transmitted, and working principle is as follows: by
The intelligent control of central data collection device 1, after some acquisition channel, which is enabled, allows opening, sensing data or order are passed through
The input of first communication interface 91, then low-pass filtered circuit, lightning protection circuit, signal conversion circuit, most connect through the second communication afterwards
Mouth is sent out.Low-pass filter circuit, which rises, inhibits high-frequency signal, the effect for avoiding high-frequency signal from interfering.Lightning protection circuit rises and prevents
Surge impact caused by lightning stroke or alternating current are unstable damages.Signal conversion circuit is played Transistor-Transistor Logic level signal and the progress of RS485 signal
The effect mutually converted.
As shown in Fig. 3, there are this multi-channel intelligent acquisition system 12 meteorological sensor acquisition channels (to omit in figure
Two), between sensor 5 and acquisition channel 4 six~channel of channel 10 is no longer 1 pair 1 of relationship, but the relationship of multi-to-multi, a kind
Sensor corresponds to multiple acquisition channels, and an acquisition channel corresponds to multiple sensors again, and all 12 acquisition channels are all " general
Channel ".Any sensor accesses acquisition channel one to any one channel in acquisition channel 12, can intelligently be known
Not, it parses, can work normally.At this point, acquisition channel becomes agile and all-purpose, occurs lacking surveying in certain sensing data and lose
When, such as wind transducer loss of data, wind sensor being accessed a new acquisition channel, (this acquisition channel connects other
Sensor works normally, and lacks to survey there is no data and lose), so that it may quickly judgement is wind sensor failure or wind sensor
Connected original acquisition channel failure, maintenance maintenance facilitate very much.
On the other hand, due to 12 acquisition channels be it is general, customized sensor element is less than 12 kinds
Words, acquisition channel just have that can be used as of having more is spare, for example the connected acquisition channel of wind sensor breaks down, can directly by
Wind sensor changes to spare acquisition channel up, can continue to work normally, and will not lack survey and lose wind direction data, this is just certain
System maintenance interval is extended in degree.If extending acquisition channel quantity, " intelligent channel " quantity can be expanded to 12
More than a, this not only extends system maintenance interval, and backup path reduces user maintenance maintenance cost to a certain extent,
Also improve reliability.General channels, can also intelligent recognition go out the specific channel that sensor is connected to, and upload information is to real
When monitor display terminal software, also with Anti-misplug advantage.
Central data collector 1 connects remote monitoring terminal 11 by means of communication terminal 10, can remotely be monitored.
Compared with prior art, the utility model has the following beneficial effects:
The utility model structure is simple, compared to existing acquisition channel, convenient, flexible, the general, anti-plug with maintenance and repair
Wrong, intelligentized advantage.Acceptor center data acquisition be device control, after channel, which is enabled, allows opening, sensing data or
Order is inputted by communication interface, then low-pass filtered circuit, lightning protection circuit, signal conversion circuit, most afterwards through communication interface
It sends out.Low-pass filter circuit plays high-frequency signal and is inhibited, the effect for avoiding high-frequency signal from interfering.Lightning protection circuit rises and prevents from being struck by lightning
Or surge impact caused by alternating current shakiness damages.
Finally, it should be noted that above-described each embodiment is merely to illustrate the technical solution of the utility model, rather than
It is limited；Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art
It is understood that it can still modify to technical solution documented by previous embodiment, or to part of or whole
Technical characteristic is equivalently replaced；And these modifications or substitutions, it does not separate the essence of the corresponding technical solution the utility model
The range of each embodiment technical solution.
Claims (5)
1. a kind of acquisition channel for surface weather station, it is characterised in that: it includes central data collector, decoder, more
Path multiplexer, multiple acquisition channels and multiple sensors, any one described sensor can be with any one acquisition channels
Connection, the central data collector communication connection have remote monitoring terminal,
The central data collector passes through data line and the decoder communication connection and can send one to the decoder
Group binary-coded decimal, the decoder and acquisition channel communication connection simultaneously can be in one group of BCD for receiving central data collector transmission
The acquisition channel is connected to any one acquisition channel transmission control signal after code, and connects and is somebody's turn to do by means of multiplexer
The corresponding sensor of acquisition channel,
The acquisition channel includes filter circuit, lightning protection circuit, signal conversion circuit and communication interface, the communication interface packet
The first communication interface and the second communication interface are included, first communication interface connects the sensor, is used for the sensing
For the circuit transmission of device acquisition to the input terminal of the filter circuit, it is electric that the output end of the filter circuit connects the signal conversion
The output end of the input terminal on road, the signal conversion circuit connects second communication interface, and the signal conversion circuit is matched
It sets and is transmitted to second communication interface and by Transistor-Transistor Logic level signal for the differential signal of input to be converted to Transistor-Transistor Logic level signal
Differential signal transmission is converted to first communication interface,
The lightning protection circuit includes anti-thunder tube, Transient Suppression Diode and resistance, and anti-thunder tube is connect with Transient Suppression Diode
Between communication line and ground, when the voltage on communication line is higher than voltage rating, anti-thunder tube and Transient Suppression Diode meeting
It absorbs too high voltages and surge, resistance to be connected in communication line, being configured to of the resistance carries out partial pressure protection.
2. the acquisition channel according to claim 1 for surface weather station, it is characterised in that: the sensor with it is described
It is connected between central data collector by RS485 bus.
3. the acquisition channel according to claim 1 for surface weather station, it is characterised in that: the filter circuit is low
Bandpass filter circuit is configured to inhibit high-frequency signal, filters out the High-frequency Interference of mutation.
4. the acquisition channel according to claim 2 for surface weather station, it is characterised in that: central data collector is borrowed
Help communication terminal and connects the remote monitoring terminal.
5. the acquisition channel according to claim 1 for surface weather station, it is characterised in that: the acquisition channel setting
There are 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958831.3U CN208298382U (en) | 2018-06-21 | 2018-06-21 | Acquisition channel for surface weather station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958831.3U CN208298382U (en) | 2018-06-21 | 2018-06-21 | Acquisition channel for surface weather station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208298382U true CN208298382U (en) | 2018-12-28 |
Family
ID=64700798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820958831.3U Active CN208298382U (en) | 2018-06-21 | 2018-06-21 | Acquisition channel for surface weather station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208298382U (en) |
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2018
- 2018-06-21 CN CN201820958831.3U patent/CN208298382U/en active Active
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