CN207798875U - A kind of off-line measurement trolley of wind speed and direction - Google Patents

A kind of off-line measurement trolley of wind speed and direction Download PDF

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Publication number
CN207798875U
CN207798875U CN201721862098.7U CN201721862098U CN207798875U CN 207798875 U CN207798875 U CN 207798875U CN 201721862098 U CN201721862098 U CN 201721862098U CN 207798875 U CN207798875 U CN 207798875U
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wind speed
ultrasonic transducer
unit
speed
trolley
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CN201721862098.7U
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施卫杰
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Shanxi Luyuan Environmental Protection Group Co., Ltd.
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Huzhou Inspiration Electronic Technology Co Ltd
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Abstract

The utility model provides a kind of off-line measurement trolley of wind speed and direction, a kind of off-line measurement trolley of wind speed and direction, including ontology, pedestal, front wheels and rear wheels, ontology is located at impact faces, two front-wheels are connected by preceding rotation axis with pedestal respectively, two trailing wheels are connected by rear rotation axis with pedestal respectively, and it includes the first~the 4th ultrasonic transducer that body upper surface, which is equipped with ultrasonic transducer group ultrasonic transducer group,.The utility model measures planar wind speed by ultrasonic wave time difference method, the direction of motion and speed of trolley are measured in conjunction with Hall sensor and electronic compass, the wind speed and direction measured is modified to obtain accurate wind speed and direction data, and storage and real-time display are carried out to truthful data, the wind angle of actual wind speed and each reference axis after facilitating tester to observe two-dimensional curve fitting, while test data Long Distant Transmit can be further processed analysis to host computer by RS485.

Description

A kind of off-line measurement trolley of wind speed and direction
Technical field
The utility model is related to wind-power electricity generation field of measuring technique, more particularly to a kind of off-line measurement of wind speed and direction is small Vehicle.
Background technology
Wind energy is exactly kinetic energy caused by air flowing, and the quality moment of wind field wind-resources affects the operation of wind energy conversion system, An important factor for wind speed and direction is wind field, measurement it is accurate whether directly influence the research of wind field characteristic.
The measurement method of common wind speed and direction mainly has wind vane, vane, wind wheel, ultrasonic wave etc., currently, right both at home and abroad The measurement method of wind speed and direction is mainly based on ultrasonic Method for Measuring, and ultrasonic wind meter is because with simple, maintenance side is installed Just it, the features such as high certainty of measurement, is all widely used in industrial production and scientific experiment.Ultrasonic wind meter is in particular/special requirement Under, it needs when being measured on the pedestal relative to measure ground motion, such as on the automobile of traveling or the ship of navigation is first-class, passes The ultrasonic wind meter of system is because base motion can not be corrected to measuring the deviation brought to be unable to get accurate data.
Utility model content
(1) the technical issues of solving
To solve the above-mentioned problems, the utility model provides a kind of off-line measurement trolley of wind speed and direction, passes through ultrasound Wave time difference method measures planar wind speed, and the direction of motion and speed of trolley are measured in conjunction with Hall sensor and electronic compass, right The wind speed and direction measured is modified to obtain accurate wind speed and direction data, the measurement suitable for pedestal moving process.
(2) technical solution
A kind of off-line measurement trolley of wind speed and direction, including ontology, pedestal, front wheels and rear wheels, the ontology are located at described Impact faces, two front-wheels are connected by preceding rotation axis with the pedestal respectively, after two trailing wheels pass through respectively Rotation axis is connected with the pedestal, and the body upper surface is equipped with ultrasonic transducer group, the ultrasonic transducer group packet Include the first~the 4th ultrasonic transducer, first ultrasonic transducer and second ultrasonic transducer is opposite is located at The horizontal central line both ends of the body upper surface, first ultrasonic transducer and second ultrasonic transducer constitute super Acoustic wave transducer transmitting-receiving pair, the third ultrasonic transducer and the 4th ultrasonic transducer it is opposite be located at the ontology The vertical center line both ends of upper surface, the third ultrasonic transducer and the 4th ultrasonic transducer also constitute ultrasonic waves It can device transmitting-receiving pair;Speed measuring device is arranged below in the pedestal, and the speed measuring device is located between two front-wheels, one of them It is stained with magnet steel on the front-wheel;The ontology front is equipped with liquid crystal display, and the liquid crystal display side is equipped with keyboard, described Keyboard is four rows, three row, 12 key board matrix;The ontology back side is equipped with battery compartment, and the battery compartment both sides are respectively equipped with SD card Slot and RS485 interfaces;The body interior is equipped with control circuit board, and the control circuit board includes control unit, self-excited driving Unit, signal condition unit, storage unit, key-press input unit, display unit and RS485 communication units;The base interior Equipped with direction measuring unit, the speed measuring device is internally provided with pedestal and tests the speed unit;The key-press input unit and the keyboard Electrical connection inputs start and stop or modification setting test parameter by the keyboard;Described control unit output drive pulse signal is sent To the input terminal of the self-excited driving unit, the self-excited driving unit carries out self-oscillation to the excitation pulse signal, drives The emission part of the dynamic ultrasonic transducer transmitting-receiving pair emits ultrasonic signal, and the signal condition unit is to the ultrasonic waves Can the ultrasonic signal that is received of receiving part of device transmitting-receiving pair be amplified, filter and envelope detection, obtain the ultrasound The arrival time data of wave signal are sent into described control unit;The direction measuring unit and the UART0 of described control unit mouths It is connected, the measurement data of trolley travel direction is sent into described control unit;The pedestal tests the speed unit and the control singly The UART1 mouths of member are connected, and the measurement data of trolley travel speed is sent into described control unit;Described control unit is to acquisition Test data processing analysis, be calculated the truthful data of wind speed and direction, output connects the storage unit and the display Unit;The storage unit and SD card slot electrical connection will calculate data and be stored in SD card;The display unit with it is described Liquid crystal display is electrically connected, the wind angle of actual wind speed and each reference axis after the fitting of real-time display two-dimensional curve;It is described RS485 communication units are electrically connected with the RS485 interfaces, described control unit also by the RS485 communication units with it is upper Machine is connected, and the truthful data of the wind speed and direction, which is uploaded to the host computer, is stored and be further processed analysis.
Further, described control unit selects 32 ARM controller LPC1768.
Further, the described first~the 4th ultrasonic transducer selects FUS-200 type ultrasonic transducers.
Further, the self-excited driving unit includes pulse transformer, field-effect tube, the first and second triodes, electricity Sense, first~third diode, the first~the 4th capacitance and the first~the 9th resistance.
Further, the signal condition unit includes amplifying circuit, filter circuit and envelope detection circuit;The amplification Circuit includes two panels operational amplifier OP37 and RC network, and the filter circuit is the pressure that single operational amplifier TL082 is core Voltage source second-order bandpass filter is controlled, the envelope detection circuit selects voltage comparator LM393.
Further, the direction measuring unit selects electronic compass LSM303DLH.
Further, the pedestal unit that tests the speed is selected and integrates normal open switch type Hall sensor A04E.
Further, the key-press input unit includes keyboard scan chip, keyboard, quartz crystal oscillator, the 5th~the 7th electricity Appearance and the tenth~the 16th resistance, wherein it is four rows, three row, 12 key key that the keyboard scan chip, which selects ZLG7289, the keyboard, Disk matrix.
Further, the display unit selects Liquid Crystal Module LCD12864.
Further, the RS485 communication units select RS485 drivers MAX487.
(3) advantageous effect
The utility model provides a kind of off-line measurement trolley of wind speed and direction, and plane two is measured by ultrasonic wave time difference method Wind speed is tieed up, the direction of motion and speed of trolley are measured in conjunction with Hall sensor and electronic compass, the wind speed and direction measured is carried out It corrects to obtain accurate wind speed and direction data, and storage and real-time display is carried out to truthful data, tester is facilitated to see The wind angle of actual wind speed and each reference axis after two-dimensional curve fitting is examined, while can be by RS485 by test data long distance From host computer is sent to be further processed analysis, simple in structure, compact, good portability, system power dissipation is low, detection Precision is high, fast response time, and stability and good reliability, scalability is strong, easy to operate, has a wide range of application, and is suitable for pedestal Measurement in moving process.
Description of the drawings
Fig. 1 is a kind of positive structure schematic of the off-line measurement trolley of wind speed and direction involved by the utility model.
Fig. 2 is a kind of structure schematic diagram of the off-line measurement trolley of wind speed and direction involved by the utility model.
Fig. 3 is a kind of system functional block diagram of the off-line measurement trolley of wind speed and direction involved by the utility model.
Fig. 4 is that a kind of self-excited driving element circuit of the off-line measurement trolley of wind speed and direction involved by the utility model is former Reason figure.
Fig. 5 is that a kind of key-press input unit circuit of the off-line measurement trolley of wind speed and direction involved by the utility model is former Reason figure.
Specific implementation mode
The embodiment involved by the utility model is described in further details below in conjunction with the accompanying drawings.
In conjunction with Fig. 1~Fig. 3, a kind of off-line measurement trolley of wind speed and direction, including ontology 1, pedestal 2, front-wheel 3 and trailing wheel 4, Ontology 1 is located above pedestal 2, and two front-wheels 3 are connected by preceding rotation axis with pedestal 2 respectively, after two trailing wheels 4 pass through respectively Rotation axis is connected with pedestal 2, and 1 upper surface of ontology is equipped with ultrasonic transducer group, and ultrasonic transducer group includes ultrasonic waves Can device 5~8, ultrasonic transducer 5 and the opposite horizontal central line both ends positioned at 1 upper surface of ontology of ultrasonic transducer 6, it is ultrasonic Wave transducer 5 and ultrasonic transducer 6 constitute ultrasonic transducer transmitting-receiving pair, 8 phase of ultrasonic transducer 7 and ultrasonic transducer To the vertical center line both ends positioned at 1 upper surface of ontology, ultrasonic transducer 7 and ultrasonic transducer 8 also constitute ultrasonic waves It can device transmitting-receiving pair;Speed measuring device 9 is arranged below in pedestal 2, and speed measuring device 9 is located between two front-wheels 3, on one of front-wheel 3 It is stained with magnet steel 10;1 front of ontology is equipped with liquid crystal display 11, and 11 side of liquid crystal display is equipped with keyboard 12, and keyboard 12 is four rows Three row, 12 key board matrix;1 back side of ontology is equipped with battery compartment 13, and 13 both sides of battery compartment are respectively equipped with SD card slot 14 and RS485 connects Mouth 15;Ontology 1 is internally provided with control circuit board, and the control circuit board includes control unit, self-excited driving unit, signal condition Unit, storage unit, key-press input unit, display unit and RS485 communication units;Pedestal 2 is internally provided with direction measuring unit, Speed measuring device 9 is internally provided with pedestal and tests the speed unit;Key-press input unit is electrically connected with keyboard 12, by keyboard 12 input start and stop or Modification setting test parameter;Control unit output drive pulse signal gives the input terminal of self-excited driving unit, self-excited driving list Member carries out self-oscillation to excitation pulse signal, and the emission part of driving ultrasonic transducer transmitting-receiving pair emits ultrasonic signal, letter The ultrasonic signal that number conditioning unit receives the receiving part of ultrasonic transducer transmitting-receiving pair is amplified, filter and envelope is examined Wave, the arrival time data for obtaining ultrasonic signal are sent into control unit;The UART0 mouth phases of direction measuring unit and control unit The measurement data of trolley travel direction is sent into control unit by connection;The pedestal unit that tests the speed is connected with the UART1 of control unit mouths It connects, the measurement data of trolley travel speed is sent into control unit;Control unit handles analysis to the test data of acquisition, calculates Obtain the truthful data of wind speed and direction, output connection storage unit and display unit;Storage unit and SD card slot 14 are electrically connected, will Data are calculated to be stored in SD card;Display unit is electrically connected with liquid crystal display 11, the reality after the fitting of real-time display two-dimensional curve The wind angle of border wind speed and each reference axis;RS485 communication units are electrically connected with RS485 interfaces 15, and control unit also passes through RS485 communication units are connected with host computer, by the truthful data of wind speed and direction be uploaded to host computer carry out storage and further Processing analysis.
Control unit selects the controller LPC1768 of 32 ARM Cortex-M3 kernels, operating frequency to be up to 120MHz, code execution speed are up to 1.25MIPS/MHz, and have abundant interface unit.The high speed processing of LPC1768 itself Technology will be helpful to improve the measurement accuracy and real-time of ultrasonic wind speed and direction.
Ultrasonic transducer 5~8 selects FUS-200 type ultrasonic transducers, it is that a kind of centre frequency is 200KHz High frequency piezoelectric ultrasonic transducer, driving voltage 60V, the driving voltage with other common energy converters of identical frequency (generally 200~400V) is compared, and has outstanding advantages of acoustic-electric high conversion efficiency, driving voltage are low, are easy to be molded.
The resonance characteristic of ultrasonic transducer itself is utilized in self-excited driving unit, then coordinates and make to surpass with external interlock circuit Acoustic wave transducer generates concussion near resonant frequency.As shown in figure 4, self-excited driving unit includes pulse transformer T1, field effect It should pipe QT1, triode Q1 and Q2, inductance L1, diode D1~D3, capacitance C1~C4 and resistance R1~R9.Excitation pulse signal Resistance R1 is produced and sent to by LPC1768, driving FET QT1 is amplified by triode Q1, the access pulse of 12V voltages is become Depressor T1 rises to 60V controls by the switching of the charge and discharge of capacitance C4 and resistance R9 the RC circuits constituted, generates the concussion of 200KHz, Ultrasonic transducer LS1 is driven to emit ultrasonic signal.To protect subsequent amplification circuitry, in the receiving part of ultrasonic transducer group A pair of of anti-paralleled diode D2 and D3 of connection carries out signal limiter.LPC1768 controls triode Q2 by pin level simultaneously, Add and be connected before excitation pulse signal, after turn off, be effectively reduced the signal interference of pulse transformer T1.
The edge of the ultrasonic signal received to make LPC1768 accurately capture obtains ultrasonic signal and reaches Correct time, signal condition need to be carried out to the ultrasonic signal that receives.Signal condition unit includes amplifying circuit, filtered electrical Road and envelope detection circuit;Amplifying circuit includes two panels low noise, high speed width operational amplifier OP37 and RC network, theory amplification Multiple is about 2200 times, meets the input voltage requirement of subsequent process circuit;Filter circuit is that single operational amplifier TL082 is core The voltage controlled voltage source second-order bandpass filter of the heart, lower-cut-off frequency 100KHz, upper cut-off frequency 300KHz;Envelope detection electricity Voltage comparator LM393 is selected on road, and influence that can be by environmental change to the amplitude of ultrasonic signal reduces to minimum, by envelope Signal after detection is a sinusoidal signal, is at this time the arrival time of acquisition ultrasonic signal.
Direction measuring unit selects electronic compass LSM303DLH, is internally integrated there are one three number of axle word accelerometers and one Three number of axle word Magnetic Sensors have the characteristics that at low cost, small, precision is high, good environmental adaptability, have digital interface. Before the use, electronic compass is calibrated, to eliminate the influence in magnetic field nearby, while should be also referred to according to international earth magnetism Region can just obtain correctly with north geographic pole in the direction value of electronic compass output plus or minus local magnetic declination For the azimuth of reference.
The pedestal unit that tests the speed is selected and integrates normal open switch type Hall sensor A04E, when the front-wheel 3 for being stained with magnet steel 10 moves When, magnet steel 10 is inswept fixed speed measuring device 9, the Hall sensor A04E inside speed measuring device 9 nearby changes in magnetic field, into And causing the change of Hall sensor A04E output voltages, LPC1768 captures voltage jump edge, utilizes two inside LPC1768 A timer conter detects the time between the number of failing edge and two failing edges in the unit interval respectively, and then calculates vehicle The rotating speed of wheel.It tests the speed compared to common GPS and photoelectric velocity measurement, Hall sensor tests the speed with signal stabilization, simple in structure, energy The advantages that adapting to harsh environments.
Tester controls trolley start and stop and modification setting test parameter, such as trolley travel speed etc. by keyboard 12 Grade, datum, serial port baud rate etc. are also identified through RS485 interfaces 15 by keyboard 12 and data are uploaded to host computer, such as Shown in Fig. 5, key-press input unit includes keyboard scan chip U1, keyboard 12, quartz crystal oscillator X1, capacitance C5~C7 and resistance R10 It is four rows, three row, 12 key board matrix that~R16, wherein keyboard scan chip U1, which select ZLG7289, keyboard 12,.Inside ZLG7289 Containing decoder, there is serial line interface, monolithic the repertoire of 12 interface of keyboard, external four rows, three row, 12 key board can be completed Matrix, when having by key pressing, KEY feet can become low level, and institute's key value can be read using instruction.
Display unit selects Liquid Crystal Module LCD12864, and two-dimensional curve is carried out to the true wind speed and direction data being calculated The wind angle of real-time display actual wind speed and each reference axis after fitting, facilitates tester to get information about measurement feelings in time Condition makes it work in the state of high conversion efficiency to determine the combustion adjustment scheme of wind energy conversion system.
Actual wind speed and direction data are also uploaded to host computer by LPC1768 by RS485 communication units, and RS485 is maximum Communication distance be about 1219m, peak transfer rate 10Mbps, the line between host computer only needs simply to use a pair of double " A ", the end " B " are connected and communication can be realized by twisted wire, very convenient, fully meet what off-line measurement system was transmitted at a distance It is required that.RS485 communication units select RS485 driver MAX487, and two Enable Pins of the RE of MAX487 and DE are connected together, are made The state that MAX487 is in a certain determination can work, and also save the I/O mouths of LPC1768.
The utility model provides a kind of off-line measurement trolley of wind speed and direction, and plane two is measured by ultrasonic wave time difference method Wind speed is tieed up, the direction of motion and speed of trolley are measured in conjunction with Hall sensor and electronic compass, the wind speed and direction measured is carried out It corrects to obtain accurate wind speed and direction data, and storage and real-time display is carried out to truthful data, tester is facilitated to see The wind angle of actual wind speed and each reference axis after two-dimensional curve fitting is examined, while can be by RS485 by test data long distance From host computer is sent to be further processed analysis, simple in structure, compact, good portability, system power dissipation is low, detection Precision is high, fast response time, and stability and good reliability, scalability is strong, easy to operate, has a wide range of application, and is suitable for pedestal Measurement in moving process.
Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality With novel claimed technology contents, all record in detail in the claims.

Claims (10)

1. a kind of off-line measurement trolley of wind speed and direction, including ontology, pedestal, front wheels and rear wheels, the ontology is located at the base Above, two front-wheels are connected by preceding rotation axis with the pedestal seat respectively, and two trailing wheels turn after passing through respectively Moving axis is connected with the pedestal, it is characterised in that:The body upper surface is equipped with ultrasonic transducer group, the ultrasonic waves Energy device group includes the first~the 4th ultrasonic transducer, first ultrasonic transducer and the second ultrasonic transducer phase To positioned at the horizontal central line both ends of the body upper surface, first ultrasonic transducer and second ultrasonic wave transducer Device constitutes ultrasonic transducer transmitting-receiving pair, the third ultrasonic transducer and the 4th ultrasonic transducer is opposite is located at The vertical center line both ends of the body upper surface, the third ultrasonic transducer and the 4th ultrasonic transducer are also constituted Ultrasonic transducer transmitting-receiving pair;Speed measuring device is arranged below in the pedestal, and the speed measuring device is located between two front-wheels, It is stained with magnet steel on one of them described front-wheel;The ontology front is equipped with liquid crystal display, and the liquid crystal display side is equipped with Keyboard, the keyboard are four rows, three row, 12 key board matrix;The ontology back side is equipped with battery compartment, the battery compartment both sides difference Equipped with SD card slot and RS485 interfaces;The body interior be equipped with control circuit board, the control circuit board include control unit, Self-excited driving unit, signal condition unit, storage unit, key-press input unit, display unit and RS485 communication units;It is described Base interior is equipped with direction measuring unit, and the speed measuring device is internally provided with pedestal and tests the speed unit;The key-press input unit with The keyboard electrical connection inputs start and stop or modification setting test parameter by the keyboard;Described control unit output drive arteries and veins The input terminal that signal gives the self-excited driving unit is rushed, the self-excited driving unit carries out self-excitation to the excitation pulse signal Concussion drives the emission part transmitting ultrasonic signal of the ultrasonic transducer transmitting-receiving pair, and the signal condition unit is to described The ultrasonic signal that is received of receiving part of ultrasonic transducer transmitting-receiving pair is amplified, filters and envelope detection, obtains The arrival time data of the ultrasonic signal are sent into described control unit;The direction measuring unit and described control unit UART0 mouthfuls are connected, and the measurement data of trolley travel direction is sent into described control unit;The pedestal test the speed unit with it is described The UART1 mouths of control unit are connected, and the measurement data of trolley travel speed is sent into described control unit;Described control unit Analysis is handled to the test data of acquisition, the truthful data of wind speed and direction is calculated, output connects the storage unit and institute State display unit;The storage unit and SD card slot electrical connection will calculate data and be stored in SD card;The display unit It is electrically connected with the liquid crystal display, the wind angle of actual wind speed and each reference axis after the fitting of real-time display two-dimensional curve; The RS485 communication units are electrically connected with the RS485 interfaces, described control unit also by the RS485 communication units with Host computer is connected, and the truthful data of the wind speed and direction, which is uploaded to the host computer, to be stored and be further processed point Analysis.
2. a kind of off-line measurement trolley of wind speed and direction according to claim 1, it is characterised in that:Described control unit is selected With 32 ARM controller LPC1768.
3. a kind of off-line measurement trolley of wind speed and direction according to claim 1, it is characterised in that:Described first~the 4th Ultrasonic transducer selects FUS-200 type ultrasonic transducers.
4. a kind of off-line measurement trolley of wind speed and direction according to claim 1, it is characterised in that:The self-excited driving list Member includes pulse transformer, field-effect tube, the first and second triodes, inductance, first~third diode, the first~the 4th electricity Hold and the first~the 9th resistance.
5. a kind of off-line measurement trolley of wind speed and direction according to claim 1, it is characterised in that:The signal condition list Member includes amplifying circuit, filter circuit and envelope detection circuit;The amplifying circuit includes two panels operational amplifier OP37 and RC Network, the filter circuit are the voltage controlled voltage source second-order bandpass filter that single operational amplifier TL082 is core, the envelope Detecting circuit selects voltage comparator LM393.
6. a kind of off-line measurement trolley of wind speed and direction according to claim 1, it is characterised in that:The orientation measurement list Member selects electronic compass LSM303DLH.
7. a kind of off-line measurement trolley of wind speed and direction according to claim 1, it is characterised in that:The pedestal tests the speed list Member, which is selected, integrates normal open switch type Hall sensor A04E.
8. a kind of off-line measurement trolley of wind speed and direction according to claim 1, it is characterised in that:The key-press input list Member includes keyboard scan chip, keyboard, quartz crystal oscillator, the 5th~the 7th capacitance and the tenth~the 16th resistance, wherein the key It is four rows, three row, 12 key board matrix that sweeping, which retouches chip and selects ZLG7289, the keyboard,.
9. a kind of off-line measurement trolley of wind speed and direction according to claim 1, it is characterised in that:The display unit choosing With Liquid Crystal Module LCD12864.
10. a kind of off-line measurement trolley of wind speed and direction according to claim 1, it is characterised in that:The RS485 communications Unit selects RS485 drivers MAX487.
CN201721862098.7U 2017-12-27 2017-12-27 A kind of off-line measurement trolley of wind speed and direction Active CN207798875U (en)

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Application Number Priority Date Filing Date Title
CN201721862098.7U CN207798875U (en) 2017-12-27 2017-12-27 A kind of off-line measurement trolley of wind speed and direction

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Application Number Priority Date Filing Date Title
CN201721862098.7U CN207798875U (en) 2017-12-27 2017-12-27 A kind of off-line measurement trolley of wind speed and direction

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111089985A (en) * 2018-10-23 2020-05-01 丰田自动车株式会社 Information processing system, nonvolatile storage medium storing program, and information processing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111089985A (en) * 2018-10-23 2020-05-01 丰田自动车株式会社 Information processing system, nonvolatile storage medium storing program, and information processing method

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Effective date of registration: 20190530

Address after: 030000 Shanxi Taiyuan City Shanxi Comprehensive Reform Demonstration Zone Taiyuan Tanghuai Park Hengjian Company Complex Building 2 Floor 201

Patentee after: Shanxi Luyuan Environmental Protection Group Co., Ltd.

Address before: 313000 208, room 2, 212 Hongqi Road, Wuxing District, Huzhou, Zhejiang.

Patentee before: Huzhou inspiration Electronic Technology Co., Ltd.