CN203149042U - Detector for automatic weather station - Google Patents
Detector for automatic weather station Download PDFInfo
- Publication number
- CN203149042U CN203149042U CN 201220276250 CN201220276250U CN203149042U CN 203149042 U CN203149042 U CN 203149042U CN 201220276250 CN201220276250 CN 201220276250 CN 201220276250 U CN201220276250 U CN 201220276250U CN 203149042 U CN203149042 U CN 203149042U
- Authority
- CN
- China
- Prior art keywords
- unit
- detector
- signal
- weather station
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model discloses a detector for an automatic weather station. The detector comprises a measuring unit, a terminal control unit, and a power supply unit, the measuring unit is provided with a signal source unit which emits a detection signal to the automatic weather station, an acquisition unit which acquires a signal fed back from the automatic weather station, and a numerical control unit which processes the acquired signal, the signal source unit is provided with an FPGA chip, and a detection signal is output after conversion through a D/A chip and a DDS chip.
Description
Technical field
The utility model relates to the automatic weather station detector, is specifically related to a kind of instrument that can detect the meteorological element sensor of automatic weather station.
Background technology
At present, at the test of automatic weather station performance index, be divided into dual mode and carry out:
1, laboratory detection mode:
Utilize the fixed equipment in the laboratory, provide the multiple spot standard weather environment of gamut to detect to tested complete machine, thereby realize the performance verification of a whole set of automatic weather station equipment, usually to a cover automatically station institute test item comprise: key elements such as temperature, wet, pressure, wind, rain, cloud, mainly be at meteorological element sensor for convenience detach, the conventional cycle is 1～3 year.
2, on-the-spot detection mode:
Utilize mobile standard to carry out contrasting periodically mutually at the sensor of meteorological site to automatic weather station, whether the characteristic with checking automatic weather station measuring system meets the requirements, this calibration operation is based on the provincial meteorological unit of examining and determine, mainly be to carry out at the place that the meteorological element sensor is inconvenient to dismantle, the conventional calibration interval are 1 year.
The detection of automatic weather station can use all purpose instrument to carry out the combined test of different electrical parameters, and common detecting instrument sees the following form.
But because the related electrical performance indexes of automatic weather station is extensive relatively, the detection of a weather station needs the accurate instrument of many station symbols to detect, need manually the electrical quantity index to be carried out conversion simultaneously and just can draw testing result, these equipment complicated operations, mobile inconvenience, even need electric test personnel and meteorological professional to work simultaneously could to guarantee normally carrying out of test, therefore be difficult to satisfy the needs of on-the-spot test, also be not suitable for the on-the-spot test demand of various weather stations, on the other hand, because the cost of detecting instrument is higher, system is huge, factors such as environment for use is restricted, it is less feasible to popularize use.
A kind of six key element automatic weather station compare devices are disclosed in Chinese utility model patent (ZL201120321662.0), this compare device can detect the confidence level of detected meteorologic signal that the weather station is gathered, these meteorologic signals comprise temperature, humidity, air pressure, wind speed, wind direction, rainfall etc., correspondingly, this compare device is provided with a plurality of acquisition modules of gathering above-mentioned meteorologic signal, data and the detected weather station self-collected data of gathering are compared, realize quality testing with this.In order to guarantee the confidence level of correlation data, the acquisition resolution of these acquisition modules and precision will be higher than the set meteorologic signal collector in detected weather station.But a plurality of acquisition modules are set, make that compare device's circuit structure is complicated, and will gather the various meteorologic signals in the reality, and require acquisition resolution and precision very high, this itself has just increased compare device's detection load and manufacturing cost.
The utility model content
At the problem that background technology exists, the purpose of this utility model is to provide a kind of new type auto weather station detector, and this detector automaticity height can detect at multiple sensors, and volume is small and exquisite, is convenient for carrying.
In order to achieve the above object, a kind of automatic weather station detector, comprise measuring unit, Terminal Control Element, power supply unit, described measuring unit is provided with the signal source unit that sends detection signal to automatic weather station, also be provided with collection from the collecting unit of automatic weather station feedback signal, and be provided with the numerical control unit of handling signal collected, be provided with database in the described Terminal Control Element, this database comprises the parameter characteristic value of several meteorological element sensors and offset correspondingly; Also be provided with algoritic module in the described Terminal Control Element, this module compensates calculating to the parameter that numerical control unit obtains according to described database; Also be provided with the main control software module in the described Terminal Control Element, the described signal source of this module controls unit sends the detection signal that adapts to automatic weather station according to database, and the parameter after the compensation calculating is differentiated, shown.
Further, this algoritic module is included in the main control software module, is the part that main control software constitutes.
Further, described Terminal Control Element adopts industrial computer or PC.Industrial computer is provided with conventional hardware device, as PC104 bus, CPU, DDR internal memory, real time clock circuit, storage card, watchdog circuit, network interface, USB interface, keyboard, LCD display etc., finish mainly that parameters and the every concrete standard that numerical control unit obtains compares, demonstration and the storage of error calculating, data and test result.
Further, described signal source unit is provided with fpga chip, and its detection signal is respectively by D/A chip and DDS chip conversion back output.
Further, the signal of described signal source unit adopts program control resistance simulation device to produce, and is provided with precision resistance and utilizes program control mode to realize the simulation of resistance value.
Further, described signal source unit is provided with fpga chip, and fpga chip inside is provided with the embedded Control software module, and this software module comprises data shaping module and bus control module.
Further, described collecting unit adopts the multi-channel synchronous sample mode, and the input signal of collection is through A/D converter or comparer conversion, and the sampling channel that is communicated with A/D converter disposes fully-differential amplifier.
Further, described numerical control unit is provided with fpga chip image data is handled, and comprises filtering, data-switching, compression integration, data storage, and described numerical control unit is also by the communication of usb bus foundation with Terminal Control Element.
Further, described fpga chip inside is provided with the embedded Control software module, and this software module is carried out synchronized sampling control to the sampling channel of collecting unit, and the control usb bus is realized and the data transmission of Terminal Control Element.
Further, described detector is equipped with inserting the power supply unit of voltage transitions, also is equipped with the battery unit that electric power is provided under the powering-off state.
The utility model automatic weather station detector has the following advantages:
1, this detector carries out conversion with multiple sensors meteorologic parameter and unit for electrical property parameters in advance, nonlinear parameter is reasonably simulated, to reach the purpose of emulation testing.Adopt the compensation way of signal classification, amplitude segmentation, covered multiple automatic weather station.
2, the crucial amplifying device to collecting unit adopts differential device and the suitable method that increases temperature compensation in the temperature test, has guaranteed good measuring accuracy and temperature stability.
3, the simulation of resistance signal is adopted D/A converter, operational amplifier, precision resistance and is utilized program control mode to realize the simulation of resistance value in the signal source unit, has realized the adjustable continuously arbitrarily of standard electric resistance, has reached very high measuring accuracy.
4, signal condition partly has filtering characteristic and isolation characteristic preferably in the collecting unit, carries out suitable characteristic compensation and temperature compensation at different sensor characteristic, to guarantee the accurate reduction of meteorological value, guarantees measuring accuracy.
5, this detector compact conformation, volume is small and exquisite, is convenient for carrying, and adapts to multiple environment for use.Dependable performance, working temperature :-25 ℃～+ 55 ℃; Storage temperature :-50 ℃～+ 70 ℃; Working relative humidity: 5%～75%; Reliability MTBF:＞3000h.
Description of drawings
Fig. 1 is the utility model structured flowchart;
Fig. 2 is signal source cellular construction block diagram;
Fig. 3 is the collecting unit structured flowchart;
Fig. 4 is the numerical control unit structured flowchart;
Fig. 5 is the utility model main control software process flow diagram;
Fig. 6 is embedded in formula control software flow pattern for numerical control unit;
Fig. 7 is embedded in formula control software flow pattern for the signal source unit;
Fig. 8 is the power supply unit structured flowchart;
Fig. 9 is the utility model front view;
Figure 10 is the utility model rear view;
Among the figure: 1. display screen, 2. keyboard, 3. vibroshock, 4. pad pin.
Embodiment
Be to reach technological means and the effect that predetermined utility model purpose is taked for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to structure of the present utility model, feature and effect describe in detail as after.
The structured flowchart of this detector mainly partly is made up of measuring unit, keyboard unit, PC104 unit and power supply unit, battery unit etc. as shown in Figure 1.
1 circuit structure
1.1 measuring unit
Measuring unit is made up of collecting unit, signal source unit, numerical control unit three parts as the circuit core of this instrument.
Collecting unit has been realized the overall process of data acquisition as the core of the data acquisition circuit of this instrument, is the basic guarantee that instrument is accurately measured.Its inside is made up of circuit such as synchronizing circuit, sampling hold circuit, voltage offset electric circuit, 16bit high-speed a/d translation circuits.The high-speed a/d translation circuit can be realized 6 road signal synchronized samplings, has comprised voltage-reference and sampling hold circuit, guarantees accuracy and the stability of measurement data.The voltage bias device is in order to make the A/D translation circuit be operated in steady state (SS), and this bias voltage is taken from A/D circuit reference voltage, has rejected influencing each other of moment circuit self preferably.
The signal source unit provides the simulation meteorologic signal of standard, for the automatic weather station collector provides the test signal of standard, thereby finishes the detection to the automatic weather station collector.Its inside is made up of circuit such as DDS circuit, D/A translation circuit, voltage comparator circuit, FPGA circuit.
Numerical control unit has been realized data acquisition conditions control, data-interface control, USB interface control as the data processing centre (DPC) of this instrument.Its inside is made up of circuit such as real time clock circuit, usb circuit, information configuration circuit, SRAM, FPGA circuit.
Usb circuit has mainly been realized the data communication with the PC104 microcomputer.The SRAM circuit provides the up transmission of mass data necessary buffer memory, the information configuration circuit has been realized the WINDOWS system information configuration of identification automatically, and the FPGA circuit has been realized the overall process of data processing, exchange.
1.2PC104 unit
PC104 has used the unit PC104 microcomputer, mainly comprises underlying hardwares such as processor, DDR internal memory, real-time clock, Compact Flash, RS485/RS422/RS232 serial line interface, DSU debug port, house dog, network interface, USB interface, keyboard, LCD display.The PC104 unit finishes mainly that parameters and the every concrete standard that numerical control unit obtains compares, demonstration and the storage of error calculating, data and test result.
1.3 power supply unit
The effect of power supply unit is that the AC and DC supply voltage that will import converts the required various voltages of instrument to.In order to adapt to the needs of varying environment, the use of different occasion, this unit adopts two kinds of input interface modes of AC and DC, and Switching Power Supply is adopted in inside, satisfies the needs of multiple input simultaneously.Detector has also disposed standby intelligent battery, has certain uninterrupted power supply ability.Power supply unit inside mainly is made up of current rectifying and wave filtering circuit, inversion step-up circuit, switching power circuit, aptitude chargeable circuit and DC/DC translation circuit.
1.4 keyboard unit
Keyboard unit is mainly realized the effect of the input of this machine information and the output of this machine data, and this unit adopts standard 101 keyboard working methods.This unit mainly comprises by keyboard scanning circuit and interface circuit and forming.
2 circuit theories
2.1 measuring unit
2.1.1 collecting unit
Collecting unit is a unit of realizing signal high-speed sampling measurement function, and its internal frame diagram as shown in Figure 3.In this element circuit, adopt fully-differential amplifier, improved common-mode rejection ratio, reduced the interference of common-mode signal.Metering circuit adopts 6 passage synchronized sampling working methods, and the data that sampling obtains are sent into the data buffer memory respectively and preserved, and analog-digital conversion process sends the CONVST signal by FPGA and controls, and whole test process reaches the requirement of synchronized sampling and real-time.
2.1.2 signal source unit
The signal source unit mainly is that the test signal of standard is provided for the automatic weather station collector, thereby finishes the detection of automatic weather station collector.This unit mainly is made of FPGA circuit, DDS circuit, D/A change-over circuit, reference voltage circuit.Its internal frame diagram as shown in Figure 2.
2.1.3 numerical control unit
Numerical control unit mainly is that the data that collect are carried out filtering, data-switching, compression integration.This subsystem is born the data processing task of total system and the IO interface of data.This unit mainly is made of FPGA circuit, interface chip and external memory storage.Its internal frame diagram as shown in Figure 4.SRAM provides necessary storage space for the data buffer memory of the storage of calculating process data and data communication.
The usb bus controller is from I
2Read the configuration information with identification in the C storer and be sent to the PC104 microcomputer, set up the communication contact between integrated circuit board and operating system, after the search of PC104 microcomputer is responded, beam back update information, deposit I in the plate in after integrated circuit board receives
2In the C storer.After communication was set up, numerical control unit received the steering order of PC104 unit in real time, gathered control and data operation and extracted, and satisfied the test needs.
Fpga chip forms several functional modules under the control of program, realize sending steering order by the communications protocol of agreement to the measuring unit sequential control circuit; After receiving test data, will make up test data, computing, and deposit operation result data layout according to the rules in the data-carrier store successively; The output of data is between main control module and PC104, abides by the communications protocol of regulation and carries out.
2.2PC104 unit
PC104 has adopted the unit PC104 microcomputer, and it mainly comprises underlying hardwares such as processor, DDR internal memory, Compact Flash, LCD display.The user uses for convenience, and perfect operation interface is absolutely necessary, and the PC104 unit adopts the VC programming, and test data, figure are shown with screen, makes easy to operate, intuitive display.Rely on the computer system multithreading, data communication, data operation, data are shown finish simultaneously, improved the real-time of data.Utilize Compact Flash storage data, reach desirable effect.
The PC104 unit adopts the QWERTY keyboard interface to cooperate the customization panel and keypad, and the mode of taking display reminding to combine makes every effort to reduce the bond number amount, makes things convenient for input information, and shortcut command is provided.Display adopts 640 * 480 colour liquid crystal display devices, and clear display is understood, has improved the intuitive of using.The PC104 unit disposes RS485, RS232 and USB interface, for user data delivery is provided convenience.The data layout that main control unit generates is supported Windows operating system and office office software, to satisfy statistics, calculating and the analysis that the user carries out the later stage.
2.3 power supply unit
The effect of power supply unit is that the AC and DC supply voltage that will import converts the required various voltages of instrument to.
In order to adapt to the needs that varying environment, different occasion are used, this instrument power source Interface design multiple powering mode, comprising: AC220V/50Hz and DC12V.The instrument power source input port adopts the mode of two ports, and wherein low-pressure port satisfies the input of DC12V power supply, and high pressure port satisfies all the other voltage inputs.
In order to guarantee the operate as normal of this machine under power supply power supply trouble environment, this unit is provided with the powered battery mode of reserve in circuit design, the intelligent electric power management mode has been adopted in the power supply of externally fed and internal cell, has realized that voltage adaptive and power supply, charge function are integrated.As shown in Figure 8, this unit mainly is made up of circuit such as AC/DC circuit, inversion step-up circuit, aptitude chargeable circuit and DC/DC conversion.
When circuit is in the high pressure input state, the interchange of input or direct current supply voltage are transformed into DC20V through being admitted to the AC/DC circuit behind the common-mode filter; When circuit is in the low pressure input state, the direct current 12V of input is admitted to inversion step-up circuit after filtration and is transformed into DC20V behind the wave circuit; Aptitude chargeable circuit master chip LTC4100 manages the input direct current, when the external power supply access state, preferentially adopts external power source, simultaneously electric battery is charged; When no external power supply inserts, be converted to battery-poweredly, guarantee the normal operation of system's emergency service state.Aptitude chargeable circuit output 14.4V or 19.8V are admitted to the DC/DC circuit, conversion go out circuits needed+12V ,-5V ,+5V, be PC104 and all using electricity system power supplies.
2.4 battery unit
In order to guarantee the operate as normal of this machine under power supply power supply trouble environment, this machine has disposed the powered battery mode of reserve, and the intelligent electric power management mode has been adopted in the power supply of externally fed and internal cell, has realized that voltage adaptive and power supply, charge function are integrated.In the battery management circuit, acp chip adopts the BQ2084 chipset, for power supply state, the state of charge of system provides more comprehensive information, intelligent battery SMBUS bus is connected in the PC104 system, battery information is monitored in real time, show convenient the use simultaneously for the real-time monitoring that the user carries out electric weight at the instrument display interface.
3 softwares constitute
The software of this instrument adopts Microsoft C++7.0 and the exploitation of Quartus II6.0 Software tool.According to software application mode difference, this instrument software is divided into main control software and embedded software two parts, and wherein, main control software adopts Microsoft C++7.0 exploitation, is installed on PC104 inside, realizes analysis, processing, demonstration and the storage of data; Embedded software adopts Quartus II6.0 exploitation, is downloaded to the FPGA inside of signal source unit and numerical control unit, realizes the collection control of data.
3.1 detector main control software
Detector main control software process flow diagram as shown in Figure 5.
At first the user selects predetermined measurement pattern by keyboard, and software presets numerical control unit according to user-selected measurement pattern; After measuring beginning, raw measurement data will be delivered to according to the communication protocol of tested collector in the main control software, and main control software will carry out computing, arrangement to every test parameter, storage according to the demonstration record content that the user selects.
3.2 numerical control unit embedded software
The numerical control unit embedded software is to adopt Quartus II6.0 exploitation, the solidification software of download unit FPGA inside, software comprised USB interface control, data bus Communication Control, data cut apart synthetic, measure and software submodules such as preset.This software carries out synchronized sampling control to 6 road signals, simultaneously sampled data is carried out filter shape, has guaranteed the stable of data.Test data and real-time clock data are through integrating and rate transition deposits in the SRAM storer, through communicating by letter of the realization of usb data bus and PC104 microcomputer.This software needs the hardware frequent operation, the order of operating at internal resource is in a large number arranged in the program, so stress the control of multithreading resource in the software design, outstanding interrupt response and the reasonable buffer memory of data stream are to guarantee finishing smoothly of mass storage stream line operation.This software basic procedure as shown in Figure 6.
3.3 signal source unit embedded software
Signal source unit embedded software is the bottom logic control software of signal source control, and developing instrument adopts Quartus II6.0 tool software, and emphasis adopts the VHDL hardware description language to write.This software comprises: data shaping module, bus control module etc.Basic procedure as shown in Figure 7.
4 gordian techniquies
4.1 many kinds of compatibility issues that automatic weather station detects
There are certain difference in sensor and metering system that different automatic weather stations adopts, for adapting to the detection of most of different model equipment, this instrument carries out conversion with multiple sensors meteorologic parameter and unit for electrical property parameters in advance, nonlinear parameter is reasonably simulated, to reach the purpose of emulation testing.This detector adopts the compensation way of signal classification, amplitude segmentation, starts with from detailed investigation automatic weather station sensor parameters, has covered various automatic weather stations.
4.2 the measuring accuracy guarantee of temperature test medium or low resistance value
Most of temperature sensors adopt platinum sensor to constitute, and the course of work by adopting four line mensuration measured resistance value, realizes temperature survey by adopting constant current source power supply.The resistance of 0 ℃ of following platinum resistance is 100 Ω, and resistance relatively also will be hanged down under the low-temperature condition, realize that measuring accuracy reaches under the wide temperature range ± 0.01 Ω, has certain degree of difficulty.In order to guarantee good measuring accuracy and temperature stability, this detector adopts the method for differential device and suitably increase temperature compensation to guarantee temperature stability to crucial amplifying device, for the strict control temperature characterisitic of selecting for use of passive device index, guarantee the instrument test precision simultaneously.
4.3 the simulation of program control resistance simulation device resistance signal
What present domestic most of resistance simulation device adopted all is mechanical knob formula structure, and this resistance simulation device can only provide several resistance values of minority, and precision is low.Since platinum resistance with the variation of temperature rate be 0.3958 Ω/℃, during 0.1 ℃ of temperature variation, platinum resistance change in resistance 0.03958 Ω is so adopt mechanical knob formula resistance to be difficult to reach accuracy requirement so.And this detector adopts D/A converter, operational amplifier, precision resistance and utilizes program control mode to realize the simulation of resistance value having realized the adjustable continuously arbitrarily of standard electric resistance, has reached very high measuring accuracy.
4.4 the development of multi channel signals conditioning and data acquisition module
Signal condition and data acquisition are simpler usually for normal signal, but in view of the singularity of meteorology test, not of uniform size as signal amplitude, strong signal is arranged, weak signal is also arranged; Analog voltage signal is arranged, pulse digit information is arranged; In order to satisfy the needs of test, measuring accuracy need be higher than at least one magnitude of equipment under test, just requires signal condition partly to have filtering characteristic and isolation characteristic preferably, to reduce the mutual influence of multiple semaphore simultaneously.Should carry out suitable characteristic compensation and temperature compensation at different sensor characteristic for collecting part, to guarantee the accurate reduction of meteorological value, guarantee measuring accuracy.
5 hardware configurations
The casing structure of this instrument as shown in Figure 9, instrument is whole to adopt the design of all-metal portable structure, the enclosing the mutual interlock of frame sidewall and the reinforcement metal cornerite be set of cabinet, the instrument upper and lower covers closely cooperates through guide groove and section bar, formation bulk shielding cabinet.
Install vibroshock below the instrument additional, form good damping effect; The cabinet height meets industrial 3U standard, and convenient multiple occasion is used; Instrument internal adopts the CPCI physical construction of standard, has improved maintainability and the operability of instrument.The instrument front panel adopts aluminum deck and PVC softpanel fit structure, shows that independently enclosing frame cooperates with shielding perspective window, has ensured the electrical property of instrument integral body.The rear panel of instrument as shown in figure 10, rear panel is the aluminium alloy panel that sprays paint, its upper right side is printed on the safety warning sign, the upper left side is furnished with label.All be furnished with the pad pin on four base angles, each interface is protected.
Above describedly be construed as the utility model and be not limited to above embodiment just for the utility model is described, meet the various flexible form of the utility model thought all within protection domain of the present utility model.
Claims (6)
1. automatic weather station detector, it is characterized in that, comprise measuring unit, Terminal Control Element, power supply unit, described measuring unit is provided with the signal source unit that sends detection signal to automatic weather station, also is provided with collection from the collecting unit of automatic weather station feedback signal, and is provided with the numerical control unit of handling signal collected; Described signal source unit is provided with fpga chip, and its detection signal is respectively by D/A chip and DDS chip conversion back output.
2. detector as claimed in claim 1 is characterized in that, described Terminal Control Element adopts industrial computer or PC.
3. detector as claimed in claim 1 is characterized in that, the signal of described signal source unit adopts program control resistance simulation device to produce, and is provided with precision resistance and utilizes program control mode to realize the simulation of resistance value.
4. detector as claimed in claim 1 is characterized in that, described collecting unit adopts the multi-channel synchronous sample mode, and the input signal of collection is through A/D converter or comparer conversion, and the sampling channel that is communicated with A/D converter disposes fully-differential amplifier.
5. detector as claimed in claim 1 is characterized in that, described numerical control unit is provided with fpga chip image data is handled, and described numerical control unit is also by the communication of usb bus foundation with Terminal Control Element.
6. detector as claimed in claim 1 is characterized in that, described detector is equipped with inserting the power supply unit of voltage transitions, also is equipped with the battery unit that electric power is provided under the powering-off state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276250 CN203149042U (en) | 2012-06-13 | 2012-06-13 | Detector for automatic weather station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276250 CN203149042U (en) | 2012-06-13 | 2012-06-13 | Detector for automatic weather station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203149042U true CN203149042U (en) | 2013-08-21 |
Family
ID=48976558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220276250 Expired - Fee Related CN203149042U (en) | 2012-06-13 | 2012-06-13 | Detector for automatic weather station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203149042U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885097A (en) * | 2014-04-10 | 2014-06-25 | 内蒙古自治区大气探测技术保障中心 | Integrated test system of meteorological station |
| CN104749659A (en) * | 2015-03-27 | 2015-07-01 | 江苏省气象探测中心 | Automatic meteorological station on-site checking instrument and method |
| CN106327834A (en) * | 2016-08-31 | 2017-01-11 | 北京浩坤科技有限公司 | Multi-channel equipment and method for acquiring signals |
-
2012
- 2012-06-13 CN CN 201220276250 patent/CN203149042U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885097A (en) * | 2014-04-10 | 2014-06-25 | 内蒙古自治区大气探测技术保障中心 | Integrated test system of meteorological station |
| CN104749659A (en) * | 2015-03-27 | 2015-07-01 | 江苏省气象探测中心 | Automatic meteorological station on-site checking instrument and method |
| CN106327834A (en) * | 2016-08-31 | 2017-01-11 | 北京浩坤科技有限公司 | Multi-channel equipment and method for acquiring signals |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201035054Y (en) | Portable electric energy quality monitoring analyzer based on double CPU mode | |
| CN100409264C (en) | low-power consumption earth temperature automatic detection device and method thereof | |
| CN201352233Y (en) | Three-phase multifunctional electric energy meter with power carrier communication | |
| CN201352234Y (en) | Three-phase multifunctional electric energy meter | |
| CN104917461B (en) | A kind of Satellite vapour image Orbital detection circuit | |
| CN103675225A (en) | Portable water quality detection instrument and method | |
| CN104991127B (en) | With respect to dielectric loss and capacitance tester | |
| CN106053981A (en) | Electric energy quality acquisition terminal and related method | |
| CN101881790A (en) | Intelligent electric power parameter tester | |
| CN103616648A (en) | Multi-cascade, high-voltage and high-power battery pack monitoring and management device | |
| CN202693771U (en) | Portable storage battery state detection system | |
| CN106370926A (en) | Missing electric quantity recorder for electric energy meter changing work and using method thereof | |
| CN201845037U (en) | Electric parameter wireless measurement device | |
| CN102174807A (en) | Ropeless static penetrometer and method for acquiring and processing data | |
| CN203149042U (en) | Detector for automatic weather station | |
| CN105607027A (en) | High-low temperature weather effect testing device for electric energy meter | |
| CN106124909A (en) | A kind of electric energy detection metering system | |
| CN112082596A (en) | Mountain landslide multiple spot monitoring devices | |
| CN208335452U (en) | load control terminal parameter configuration device | |
| CN202453431U (en) | Handheld electric power multifunctional waveform recording analyzer | |
| CN203811718U (en) | Intelligent diagnostic instrument of energy saving of special-line user | |
| CN202453439U (en) | Comprehensive handheld power quality tester | |
| CN100483155C (en) | Portable gravity and environment parameter graphic display instrument | |
| CN113194554A (en) | Multi-protocol intelligent acquisition gateway system for water and electricity meters and use method thereof | |
| CN204855653U (en) | Relative jie is decreased and capacitance tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140613 |
|
| EXPY | Termination of patent right or utility model |