CN105374189A - Acquisition system of atmospheric profile parameters including temperature, humidity and pressure - Google Patents
Acquisition system of atmospheric profile parameters including temperature, humidity and pressure Download PDFInfo
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- CN105374189A CN105374189A CN201510780157.5A CN201510780157A CN105374189A CN 105374189 A CN105374189 A CN 105374189A CN 201510780157 A CN201510780157 A CN 201510780157A CN 105374189 A CN105374189 A CN 105374189A
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- G—PHYSICS
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- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
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- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
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Abstract
The invention discloses an atmospheric profile parameter acquisition system. The system includes a captive balloon, a coordinator, a receiving terminal and at least one group of acquisition unit. The at least one group of acquisition unit is sequentially fastened on the captive rope of the captive balloon; the acquisition unit includes a router and multiple acquisition nodes connected sequentially; the acquisition nodes are for the acquisition of three meteorological parameters including temperature, humidity and air pressure of an atmospheric profile, whose height the acquisition nodes are on; the router is used to collect the meteorological parameters of all acquisition nodes in the unit, in which the router locates; a coordinator and the router of the acquisition unit are in a wireless network; the coordinator receives meteorological parameters collected by each router and forwards the meteorological parameters to the receiving terminal. The system of the invention can realize real-time acquisition of three meteorological parameters including temperature, humidity and air pressure of the sea surface on the same longitude and latitude and obtain gradient distribution values concerning the three meteorological parameter values of the profile, and is conductive to accurate prediction of the time and region of atmospheric duct.
Description
Technical field
The present invention relates to marine atmospheric duct monitoring technical field, be specifically related to a kind of atmospheric profile parameter acquisition system, for measuring atmospheric temperature, humidity, the air pressure at same longitude and latitude differing heights place, sea, low latitude.
Background technology
Marine atmospheric duct monitoring is one of important leverage promoting marine safety protective capability with application.Direct detection, indirect detection and remote sensing are three kinds of methods that atmospheric duct is measured.Microwave refractometer is a kind of equipment of direct measurement air index.Propose the relation of atmospheric refraction index and vapour pressure, temperature and air pressure from nineteen sixty-eight Bean and Dutton after, atmospheric refraction index also obtains indirectly by measuring meteorologic parameter.Indirect detection mainly contains low latitude captive balloon soun, the detection of meteorological gradient tower, the gentle ball sonde of dropsonde.Remote sensing mainly contains GPS detection, sea clutter inverting, laser radar detection etc.
China's oceanic area is vast, current offshore evaporation waveguide operational use monitoring means only has steel tower research station, atmospheric duct monitoring means is single, sea applies atmospheric duct gradient observation system on a small quantity, lacks atmospheric duct (comprising evaporation waveguide, surface duct, lifting waveguide) quick and motor-driven obtaining means; Atmospheric duct monitoring capability is also weaker, shows website rareness, and the transmission of information is shared and information-gathering capabilities deficiency, is badly in need of the gradient meteorologic parameter system designing same longitude and latitude above a energy Real-time Obtaining marine site.Thus predict atmospheric duct time of origin and region more accurately and effectively.
The article " Atmosphere And Humidity design of data acquisition system and realization based on ZigBee technology " that present invention applicant delivers in early days establishes a star-like radio sensing network be made up of some nodes.Each terminal organ utilizes Temperature Humidity Sensor DHT11 collecting temperature, humidity data, and by networks converge to telegon.Achieve based on the temperature of ZigBee-network, humidity parameter collection and communication.The technical scheme that this article is announced just proposes a kind of technical thought theoretically, and concrete technological means does not have clear and definite or existing defects, also there is a very long segment distance from engineer applied.For example, in the program, each node directly and telegon group-net communication, and communication distance is short, and measuring height is limited; In different Atmosphere And Humidities pressure variation range, the measurement result undulatory property of same sensor is very large, how to overcome fluctuation and waits to solve; Group-net communication between acquisition node and telegon, acquisition node is fastened successively and is connected on the vertical rope of captive balloon, it is many that balloon carries collecting unit number, requirement collecting unit is light, gather in this field in air meteorology, need use 360 degree of comprehensive communication antennas, and need to realize low-power consumption requirement, need each collecting unit to realize small form factor requirements etc.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of atmospheric profile parameter acquisition system, its object is to, by multiple node grouping and in units of group with telegon group-net communication, extended measuring height; Designed by sensor accuracy, overcome because Atmosphere And Humidity pressure changes the measurement fluctuation caused; Real-time is good, and stability is high, and information-gathering capabilities is strong, is conducive to predicting atmospheric duct time of origin and region more accurately and effectively.
For achieving the above object, the invention provides a kind of atmospheric profile parameter acquisition system, comprise captive balloon, telegon, receiving terminal and at least one group of collecting unit;
The mooring line of captive balloon is connected at least one group of collecting unit by fastening highly successively; Collecting unit comprises a router and by fastening the multiple acquisition nodes connect highly successively, acquisition node for gathering the atmospheric profile temperature of its place height, humidity and air pressure three kinds of meteorologic parameters, the meteorologic parameter that router gathers for all acquisition nodes collecting its place unit; The router wireless networking of telegon and each collecting unit, the meteorologic parameter that telegon is collected for receiving each router, and be transmitted to receiving terminal;
Described acquisition node comprise micro-control module and be integrated in it on one piece of plank temperature sensor, humidity sensor, baroceptor and antenna communication module; Under atmospheric temperature variation range is-10 DEG C ~+50 DEG C conditions, the acquisition precision of described temperature sensor is ± 0.2 DEG C; Under range of humidity variation is 0 ~ 100% condition, the acquisition precision of described humidity sensor is ± 3%; Under atmospheric pressure variation range is 990hpa ~ 1100hpa condition, the acquisition precision of described baroceptor is ± 1.5hpa.
In general, compared with prior art, the present invention as carrier, will organize collecting unit more and bring into the temperature of aerial survety differing heights, humidity and pneumatic parameter by captive balloon to the above technical scheme conceived by the present invention; The router of each collecting unit and telegon networking, send the meteorologic parameter of each collecting unit to telegon, define the gradient Distribution Value about three meteorologic parameter values of section, finally unification is sent to receiving terminal, real-time is good, position, collection point can according to the corresponding expansion of measuring height, and information-gathering capabilities is strong.The present invention also designs meteorologic parameter acquisition precision, is conducive to predicting atmospheric duct time of origin and region more accurately and effectively.
Accompanying drawing explanation
Fig. 1 is present system structural drawing;
Fig. 2 is inventive antenna structural drawing;
Fig. 3 is sample result correlation curve figure of the present invention, and wherein, Fig. 3 (a) is temperature comparisons's curve map, and Fig. 3 (b) is humidity correlation curve figure, Fig. 3 (c) is air pressure correlation curve figure;
Fig. 4 is sample result absolute error curve map of the present invention, and wherein, Fig. 4 (a) is temperature absolute error curve map, and Fig. 4 (b) is humidity absolute error curve map, and Fig. 4 (c) is absolute error curve map.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
Refer to Fig. 1, atmospheric profile parameter acquisition system of the present invention, comprise captive balloon, telegon, receiving terminal and at least one group of collecting unit.
Captive balloon as carrier, for bringing into organizing collecting unit in the air more.Collecting unit is fastened successively and is connected on mooring line.When captive balloon rises up into aerial, its mooring line lowering, fastens the collecting unit be connected on mooring line and is brought into aerial differing heights place.
The concrete executive agent that collecting unit gathers as meteorologic parameter, it comprise micro-control module and with the temperature sensor of its wired connection, humidity sensor, baroceptor and wireless communication module.The inner each module work of the main coordinator node of micro-control module, temperature sensor, humidity sensor, baroceptor gather the atmospheric profile temperature of place height, humidity and air pressure respectively.Wireless communication module one end wired connection micro-control module, other end wireless connections coexist the router of a collecting unit.Micro-control module starts three working sensors, receives the meteorologic parameter that it gathers, and sends to router by wireless communication module.
The key factor that atmospheric duct is formed is that humidity sub-sea state of saturation is upwards successively decreased rapidly and caused.The present patent application person, through lot of experiments and research, finds, when the micro-change of sensor relative humidity precision, the deviation of duct height can be caused to double; When Qihai temperature approach is greater than zero, even if very little Qihai difference variation will make atmospheric duct height, great changes will take place.Therefore, meteorologic parameter needs the accuracy requirement of applicable Atmosphere changes scope in humiture collection.The present patent application person is to this has been lot of experiments and demonstration, the atmospheric temperature variation range of China's Coastal Areas be-10 DEG C ~+50 DEG C, under range of humidity variation is 0 ~ 100%, atmospheric pressure variation range is 990hpa ~ 1100hpa condition, acquisition node precision index is:
Table 1 meteorologic parameter acquisition precision index
During practical application, using table 1 as the type selecting performance index of each sensor, to ensure the validity of DATA REASONING.
The router wireless networking of telegon and each collecting unit, telegon receives the meteorologic parameter that each router is collected, and is transmitted to receiving terminal.The router of telegon and each collecting unit can adopt any one networking in Wi-Fi, WirelessUSB, bluetooth, infrared data communication and ZigBee, preferred ZigBee.ZigBee wireless communication technology is selected to be the meteorologic parameter acquisition module limited amount carried because of sounding hot air balloon, also namely require once as much as possiblely to carry meteorologic parameter acquisition module, wire transmission mode needs a large amount of wiring, one is gain in weight, two is that wiring is complicated, employing wire transmission mode is inadvisable, so select the mode of wireless transmission in native system design.If communication distance is oversize, the problems such as high power consumption can be produced.Due to can cordless communication network be formed between each meteorologic parameter acquisition module, the force transfer of data so just can be realized in network by adding the module with routing function, such power consumption is also relatively low, the time that the section atmospheric parameter acquisition system Comparision that sounding balloon is carried is long, gather more data, be convenient to analyze marine site, local atmospheric environment situation.Zigbee protocol be a kind of closely, low complex degree, low-power consumption, low data rate, low cost radio network technique, meet the design of this section atmosphere parameter measuring system.Concrete network topology structure can select network-type, tree bunch type and star-like etc., preferred tree bunch type in this design.
Gather in this field in air meteorology, consider and will realize 360 degree of comprehensive communications, need omnidirectional antenna, miniaturization, requirement low in energy consumption, the present invention provides a kind of optimizing structure design to the antenna sent and received information in acquisition node, router and telegon.Because whole module volume is very little, determine to adopt the PCB antenna being integrated in plank to realize its order, this PCB antenna as shown in Figure 2.
Refer to Fig. 2, antenna structure is the M-W-N type structure be connected in turn, wherein:
M type structure comprises traversing section, left vertical section, middle vertical section, right vertical section, ground section and feed section, and ground section connects the lower end of left vertical section, and the lower end of vertical section in the middle of feed section connects, the width of traversing section is L
8, left vertical section is all L mutually with the length of middle vertical section
2, the length of right vertical section is L
3, ground section is all L mutually with the length of feed section
1, the width of left vertical section is L
8, middle vertical section is all L mutually with the width of right vertical section
7.
W type structure comprises traversing section, lower-left traversing section, bottom right traversing section, and two ends connect the left vertical section of traversing section, lower-left traversing section respectively, and two ends connect the right vertical section of traversing section, bottom right traversing section respectively.The width of upper traversing section is L
5, make lower traversing section and be all L mutually with the width of bottom right traversing section
6, left vertical section is all L mutually with the length of right vertical section
3, width is all L mutually
7.
N type junction structure comprises traversing section, left vertical section and right vertical section.The width of traversing section is L
5, the length of left vertical section is L
3, the length of right vertical section is L
4, left vertical section is all L mutually with the width of right vertical section
7.
With L
1for benchmark, then other each several part and L
1dimension scale the following table is
| Ratio | Value |
| L 2：L 1 | 8.70—8.90 |
| L 3：L 1 | 5.25—5.30 |
| L 4：L 1 | 7.86—7.90 |
| L 5：L 1 | 5.38—5.42 |
| L 6：L 1 | 4.00—4.02 |
| L 7：L 1 | 1.00—1.03 |
| L 8：L 1 | 9.98—10.02 |
This antenna so designs, because collecting unit, router and reception telegon volume requirement are little, this design significantly reduces PCB antenna size, but can reach the effect of the communication distance of demand, reaches the technique effect that air space above sea meteorological gradient measures radio communication.
Receiving terminal is connected with telegon serial ports, receives the weather data that telegon forwards, to do follow-up data mart modeling process.
The quantity of collecting unit is determined according to measurement target height, and object height is higher, and the quantity of the collecting unit of needs is more.The acquisition node quantity of same collecting unit is interval with the measuring height of place unit and to measure step-length relevant, and highly interval is larger or step-length is less accordingly, and number of nodes is more.
If collecting unit only has one, so the router of this collecting unit and telegon can be multiplexing, that is can delete router, and acquisition node directly and telegon networking.
Embodiment:
In embodiment, the quantity of collecting unit is 3 groups, and often the acquisition node quantity organized in collecting unit is 5.Temperature sensor (thermistor): 10K4A1A, humidity sensor: HS1101, baroceptor: BMP085, microcontroller CC2530.。Router and telegon adopt ZigBee wireless communication network, and network topology structure adopts tree bunch type.Above-mentioned parts selection all meets the meteorologic parameter acquisition precision index shown in table 1.
Specifically being of a size of of antenna: L
1: 0.5cm, L
2: 4.4cm, L
3: 4.24cm, L
4: 3.93cm, L
5: 2.7cm, L
6: 2cm, L
7: 0.51cm, L
8: 5cm.
Test comparison result refers to table 2:
Table 2 contrast test result
The test result correlation curve that Fig. 3 and 4 is and absolute error curve.
As can be seen from the test result correlation curve of above several groups of experiments, in this section meteorologic parameter measuring system, the stability of meteorologic parameter acquisition module is better; As can be seen from absolute error curve, in this section meteorologic parameter measuring system, the measuring error of the temperature of meteorologic parameter acquisition module, humidity, air pressure is all in the scope of design objective, and the precision of system reaches designing requirement.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. an atmospheric profile parameter acquisition system, is characterized in that, comprises captive balloon, telegon, receiving terminal and at least one group of collecting unit;
The mooring line of captive balloon is fastened successively and is connected at least one group of collecting unit; Collecting unit comprises a router and fastens the multiple acquisition nodes connect successively, acquisition node for gathering the atmospheric profile temperature of its place height, humidity and air pressure three kinds of meteorologic parameters, the meteorologic parameter that router gathers for all acquisition nodes collecting its place unit; The router wireless networking of telegon and each collecting unit, the meteorologic parameter that telegon is collected for receiving each router, and be transmitted to receiving terminal by wire transmission mode;
Described acquisition node comprises micro-control module and connected temperature sensor, humidity sensor, baroceptor and antenna communication module;
Under atmospheric temperature variation range is-10 DEG C ~+50 DEG C conditions, the acquisition precision of described temperature sensor is ± 0.2 DEG C;
Under range of humidity variation is 0 ~ 100% condition, the acquisition precision of described humidity sensor is ± 3%;
Under atmospheric pressure variation range is 990hpa ~ 1100hpa condition, the acquisition precision of described baroceptor is ± 1.5hpa.
2. atmospheric profile parameter acquisition system according to claim 1, is characterized in that, the antenna structure that described antenna communication module adopts is the M-W-N type structure be connected in turn, wherein:
M type structure comprises traversing section, left vertical section, middle vertical section, right vertical section, ground section and feed section, and ground section connects the lower end of left vertical section, and the lower end of vertical section in the middle of feed section connects, the width of traversing section is L
8, left vertical section is all L mutually with the length of middle vertical section
2, the length of right vertical section is L
3, ground section is all L mutually with the length of feed section
1, the width of left vertical section is L
8, middle vertical section is all L mutually with the width of right vertical section
7;
W type structure comprises traversing section, lower-left traversing section, bottom right traversing section, and two ends connect the left vertical section of traversing section, lower-left traversing section respectively, and two ends connect the right vertical section of traversing section, bottom right traversing section respectively.The width of upper traversing section is L
5, make lower traversing section and be all L mutually with the width of bottom right traversing section
6, left vertical section is all L mutually with the length of right vertical section
3, width is all L mutually
7;
N type junction structure comprises traversing section, left vertical section and right vertical section.The width of traversing section is L
5, the length of left vertical section is L
3, the length of right vertical section is L
4, left vertical section is all L mutually with the width of right vertical section
7;
With L
1for benchmark, then other each several part and L
1dimension scale as follows:
L
2：L
18.70—8.90
L
3：L
15.25—5.30
L
4：L
17.86—7.90
L
5：L
15.38—5.42
L
6：L
14.00—4.02
L
7：L
11.00—1.03
L
8：L
19.98—10.02
。
3. atmospheric profile parameter acquisition system according to claim 1 and 2, is characterized in that, the router of described telegon and each collecting unit adopts any one networking in Wi-Fi, WirelessUSB, bluetooth, infrared data communication and ZigBee.
4. atmospheric profile parameter acquisition system according to claim 3, is characterized in that, the router of described telegon and each collecting unit adopts ZigBee networking.
5. atmospheric profile parameter acquisition system according to claim 4, is characterized in that, the router of described telegon and each collecting unit adopts sets a bunch type network topology structure.
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| CN106154271A (en) * | 2016-06-28 | 2016-11-23 | 中国电子科技集团公司第二十二研究所 | A kind of bank base universal class type atmospheric duct monitoring device |
| CN106527465A (en) * | 2016-12-09 | 2017-03-22 | 中国电子科技集团公司第三十八研究所 | Multi-order redundant captive balloon attitude control system and cooperative control method thereof |
| CN106526703A (en) * | 2016-11-30 | 2017-03-22 | 中国航天空气动力技术研究院 | Aerial meteorological monitoring system |
| CN106021905B (en) * | 2016-05-16 | 2018-12-14 | 西安电子科技大学 | A kind of complete approximating method of atmospheric parameter data based on radio wave propagation |
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