CN210294571U - Integrated meteorological six-element sensor system - Google Patents
Integrated meteorological six-element sensor system Download PDFInfo
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- CN210294571U CN210294571U CN201822090662.9U CN201822090662U CN210294571U CN 210294571 U CN210294571 U CN 210294571U CN 201822090662 U CN201822090662 U CN 201822090662U CN 210294571 U CN210294571 U CN 210294571U
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Abstract
The utility model discloses a six essential element sensor systems of integration weather, meteorological detection instrument design technical field, including sensor module, with sensor module communication connection's master controller and with master controller communication connection's computer terminal host computer, wherein sensor module includes temperature and humidity sensor, baroceptor, wind speed and direction sensor and rain sensor, including the AD converter, wind speed and direction sensor passes through the AD converter and is connected to the master controller, wind speed and direction sensor adopts ultrasonic wave formula wind speed and direction sensor, be equipped with filtering and amplifying circuit and detection circuit between wind speed and direction sensor and the AD converter in proper order, this system has guaranteed that the high accuracy detects, has extensive suitability simultaneously.
Description
Technical Field
The utility model belongs to the technical field of meteorological detecting instrument designs, specifically relate to a six key element sensor systems in integration weather.
Background
The operation of naval vessels has very close relation with weather conditions all the time, the sailing, weapon launching, material supply, investigation communication and the like of the vessels have very high requirements on parameters such as atmospheric temperature, humidity, atmospheric pressure, wind speed, wind direction, rainfall and the like, particularly the modern naval vessel pursues high-precision operation, the demand on high-precision weather data is greatly increased, and the naval vessels in China are in the outbreak period of equipment replacement at present, and the demand on the equipment is stronger and stronger. In practical application, not only military application but also applications such as meteorological observation have requirements on meteorological condition monitoring.
Through the discovery of prior art document retrieval, Chinese utility model patent with application number 2014207763396 discloses an integral type meteorological sensor, this integral type meteorological sensor is including setting up meteorological element sensor module, signal processing module and the output port module on the meteorological sensor body, wherein meteorological element sensing module specifically includes the radar that sets up at the meteorological sensor top and measures rainfall module, ultrasonic wave that sets up in the meteorological sensor middle part surveys wind speed wind direction module and MEMS and surveys atmospheric pressure module, and set up the humiture detection module in the meteorological sensor lower part, each module in meteorological element sensing module all is connected with signal processing module, signal processing module is connected with the output port module, the device is easy to maintain's integral type meteorological sensor, can detect temperature, humidity, wind speed, wind direction, atmospheric pressure simultaneously through a sensor, the device is a, The rainfall is six meteorological factors. However, the device has certain defects, in the device, the temperature and humidity sensor, the rainfall sensor, the ultrasonic probe and the like are directly connected with the signal processing module, additional processing is not performed through any circuit, which can cause inaccuracy of information acquisition of the sensor and further influence the accuracy of the system, other types of sensors are not integrated in the device, only the sensor can be used for acquiring data information of a few types, the applicability is poor, the effect of the sensor is completed through one meteorological sensor, but the sensor is actually obtained through actual detection of a plurality of sensing modules integrated in the meteorological sensor, and the fact that one sensor detects temperature, humidity, wind speed, wind direction, air pressure and rainfall at the same time is not realized in the actual sense.
Through to prior art document retrieval discovery, application number 2016213645381's chinese utility model patent discloses a six key element monitors in meteorology, including base, middle safety cover and top covering slag, install the draft hood above the base, the inside aviation plug of transferring of draft hood is equipped with, and the inside top of draft hood is equipped with water joint and temperature and humidity sensor side by side, is connected with middle safety cover above the draft hood, middle safety cover internally mounted has main control circuit board, main control circuit board both ends are equipped with ultrasonic transducer, are located the main control circuit board in the middle of and are equipped with pressure sensor between the ultrasonic transducer, top safety cover bottom is equipped with the concave arc face, and rain gauge is installed to top safety cover top. The utility model discloses an each sensor of reasonable order installation detector for this monitor outward appearance is small and exquisite, pleasing to the eye, reaches the characteristics that measuring parameter precision is high to a certain extent. However, this device has the drawback that the sensor unit is also directly connected to the master controller without any additional processing by the circuitry, which can lead to inaccuracies in the information collected by the sensor.
The invention discloses a six-element automatic weather station comparison device, which is found by searching documents in the prior art and has the application number of CN2011203216620, wherein a rain sensor acquisition module in the device adopts a tipping bucket type rain sensor; the wind direction sensor acquisition module outputs in a Gray code mode. The device has simple principle and has the following defects: the size of the sensor is not considered, and the sensor is complex to debug and install and is inconvenient to carry; in addition, the diversification of the communication interface is not considered, the communication interface is single, the use condition is harsh, and the wide applicability is not realized.
Above all there is the inaccurate defect of sensor detection information among the prior art, and simultaneously, sensor unit structure is not compact, and occupation space is big, is unfavorable for carrying, consequently, needs to propose a neotype sensor system and is used for meteorological information's detection.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects in the prior art and the low acquisition precision of the meteorological six-element sensor in the prior art, the invention provides an integrated meteorological six-element sensor system which ensures high-precision detection and has wide applicability.
The technical scheme is as follows: in order to achieve the purpose, the integrated six-element meteorological sensor system comprises a sensor module, a main controller in communication connection with the sensor module and a computer terminal upper computer in communication connection with the main controller, wherein the sensor module comprises a temperature and humidity sensor, an air pressure sensor, a wind speed and direction sensor and a rainfall sensor, the wind speed and direction sensor comprises an A/D converter, the wind speed and direction sensor is connected to the main controller through the A/D converter, the wind speed and direction sensor adopts an ultrasonic wind speed and direction sensor, and a filtering amplification circuit and a detection circuit are sequentially arranged between the wind speed and direction sensor and the A/D converter.
Furthermore, the rainfall sensor is connected to the master controller through an A/D converter, and a charge amplification circuit is arranged between the rainfall sensor and the A/D converter.
Furthermore, the temperature and humidity sensor adopts imitation I2And the mode C is in communication connection with the master controller.
Furthermore, the air pressure sensor is in communication connection with the master controller in an SPI mode.
Further, including power module and multistage step-down circuit, this multistage step-down circuit includes one-level step-down circuit and second grade step-down circuit, power module and one-level step-down circuit connection, the output voltage of one-level step-down circuit is connected to second grade step-down circuit, second grade step-down circuit transmits output voltage to temperature and humidity sensor, baroceptor, rainfall sensor and master controller.
Further, the wind speed and direction sensor comprises a BOOST circuit, the output voltage of the main controller is connected to the BOOST circuit for boosting, the output voltage of the primary voltage reduction circuit is connected to the BOOST circuit for boosting, and the two boosted voltages are transmitted to the wind speed and direction sensor as output voltages.
Further, the master controller adopts an STM32F103ZET6 chip based on an ARM Cortex-M3 kernel.
Furthermore, the main controller is in communication connection with the upper computer of the computer terminal through a communication cable.
Further, the wind speed and wind direction sensor rain-proof device comprises a grid, the temperature and humidity sensor and the air pressure sensor are arranged in the grid, the air pressure sensor is located above the temperature and humidity sensor, the master controller is arranged above the air pressure sensor, the wind speed and wind direction sensor is arranged above the master controller, and the rain sensor is arranged above the wind speed and wind direction sensor.
Furthermore, the wind speed and direction sensors comprise 4 wind speed and direction sensors, the 4 wind speed and direction sensors are arranged in a 2x2 array, and any two wind speed and direction sensors are vertically distributed.
Has the advantages that:
compared with the prior art, the utility model, the advantage that has is:
1. the ultrasonic wind speed and direction sensor is adopted, and the ultrasonic wind speed and direction sensor is sequentially connected with the filtering amplification circuit and the detection circuit to the A/D converter, so that the strength of an acquired signal of the ultrasonic wind speed and direction sensor is improved, and the detection precision of a system is further improved;
2. the wind speed and wind direction sensor comprises a power module and a multi-stage voltage reduction circuit, wherein the multi-stage voltage reduction circuit comprises a first-stage voltage reduction circuit and a second-stage voltage reduction circuit, the first-stage voltage reduction circuit and the second-stage voltage reduction circuit form a two-stage voltage reduction mode, the two-stage voltage reduction mode is different from the first-stage voltage reduction mode, the detection precision of the sensor can be improved in the actual use process, the risk that the sampling precision of the sensor is influenced due to the fact that only one-stage voltage reduction design is adopted is avoided, the power supply of the wind;
3. the invention has strong environment adaptability, can well meet the requirements of warships, is also suitable for other fields, such as power transmission systems, meteorological disaster monitoring, emergency rescue and the like, can rapidly increase the requirements of various production fields on equipment along with the arrival of a big data era, and has wide applicability;
4. the invention integrates six meteorological parameter measuring functions of temperature, humidity, atmospheric pressure, wind speed, wind direction and rainfall into a whole, the whole sensor adopts a compact design, emphasizes the integrated design, and is small, exquisite, light and convenient to carry;
5. the invention adopts diversified communication interfaces, and has wide applicability;
6. the invention has low cost;
7. in the aspect of functional design, the digital mature scheme is adopted, the integrated design is emphasized, and the integrated design highlights the portability, the light weight, the low cost, the high precision and the high environment adaptability of the invention, does not need manual maintenance, and is convenient and fast to operate and calibrate;
8. the sound wave type wind speed and direction sensor detects in two opposite directions on the two channels, the two ultrasonic wave type sensors are vertically distributed in pairs, the influence of temperature on sound wave speed is negligible at the moment, and the detection accuracy is further improved.
Drawings
FIG. 1 is a block diagram of the system of the present invention.
Fig. 2 is a power supply layout of the present invention.
FIG. 3 is a schematic diagram of a driving and boosting circuit of the wind speed and direction sensor according to the present invention.
FIG. 4 is an amplifying and comparing circuit of the wind speed and direction sensor of the present invention.
FIG. 5 is a schematic diagram of the system of the present invention.
FIG. 6 is a schematic diagram of the distribution of wind speed and direction sensors in the present invention.
Description of reference numerals:
1. a steel cover; 2. a piezoelectric acceleration sensor; 3. a rainfall sensor; 4. a wind speed and direction sensor; 5. a master controller; 6. an air pressure sensor; 7. a temperature and humidity sensor; 8. a grid.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
The first embodiment is as follows:
the integrated six-element meteorological sensor system of the embodiment, referring to fig. 1, comprises a sensor module, a main controller in communication connection with the sensor module, and a computer terminal upper computer in communication connection with the main controller, wherein the sensor module comprises a temperature and humidity sensor, an air pressure sensor, a wind speed and direction sensor and a rainfall sensor, and the temperature and humidity sensor, the air pressure sensor, the wind speed and direction sensor and the rainfall sensor are all in communication connection with the main controller; the temperature and humidity sensor is used for collecting meteorological elements: the temperature and the humidity are measured, and data information is sent to the main controller; the air pressure sensor is used for acquiring meteorological elements: air pressure and sending data information to the main controller; the wind speed and direction sensor is used for acquiring meteorological elements: wind speed and wind direction, and sending data information to the main controller; the rainfall sensor is used for collecting meteorological elements: rainfall and data information is sent to the master controller; the six sensor modules form a six-element sensor system for acquiring six meteorological elements: temperature, humidity, wind speed, wind direction, rainfall and air pressure; the main controller is used for sending the received meteorological six-element data information to the upper computer of the computer terminal; the computer terminal upper computer is used for accessing all parameters of the meteorological sensor by a user; the embodiment adopts a modularized collaborative design method, can simultaneously measure various meteorological parameters such as temperature, humidity, wind speed, wind direction, rainfall, air pressure and the like, and reads all data through the upper computer of the connected computer terminal.
The wind speed and wind direction sensor sends collected wind speed and wind direction electric signals to the A/D converter, and the electric signals are converted into digital signals through the A/D converter and then sent to the main controller; the wind speed and direction sensor adopts an ultrasonic wind speed and direction sensor, the ultrasonic wind speed and direction sensor adopts an ultrasonic time difference method to realize the measurement of wind speed and wind direction, the ultrasonic principle is adopted to measure, the ultrasonic time difference method is utilized to realize the measurement of wind speed, and the ultrasonic wind speed and direction sensor is sequentially connected with a filter amplifying circuit and a detection circuit to an A/D converter;
the loss of ultrasonic signals is large in the process of transmission in the air, the electric signals converted after the receiving transducer receives the ultrasonic signals are weak and cannot be directly identified by a main controller chip, meanwhile, the received signals are accompanied by various noises, the measurement precision is influenced, a filtering amplification circuit is required to be designed for filtering and amplifying the received signals, the signals amplified by the filtering amplification circuit are in a sine wave form, and a detection circuit is adopted to convert the sine wave signals into square wave signals and transmit the square wave signals to an A/D converter in order to facilitate the main controller chip to identify the received signals;
in the embodiment, the filtering and amplifying circuit comprises a filtering circuit and an amplifying circuit, wherein the filtering circuit comprises a low-pass filtering circuit and a high-pass filtering circuit, the designed cut-off frequency of the low-pass filtering circuit is about 220KHZ, the designed cut-off frequency of the high-pass filtering circuit is about 180KHZ, and finally, a band-pass filtering circuit with the central frequency of about 200KHZ and the bandwidth of 40KHZ is formed; in this embodiment, the low-pass and high-pass filter circuits both adopt Sally-key type filter design schemes, and in order to improve the filter effect of the filter, four-order circuits are designed by adopting two groups of filters so as to improve the filter effect.
In order to facilitate the master chip to recognize the received signal, a detection circuit is used to convert the sine wave signal into a square wave signal and transmit the square wave signal to the a/D converter, and the detection circuit is shown in fig. 4. In the figure, the operational amplifier 1 and the operational amplifier 2 are used for rectifying the filtered signal waveform, and the comparator U1A converts the analog signal into a square wave signal, so that the main controller can recognize the received signal for timing.
The effect of this embodiment is that the signal intensity that gathers of ultrasonic wave formula wind speed and direction sensor has further improved system detection precision.
Example two:
in the integrated weather six-element sensor system of the embodiment, based on the first embodiment, referring to fig. 1, the rainfall sensor is connected to the master controller through the a/D converter, and a charge amplification circuit is arranged between the rainfall sensor and the a/D converter;
the rainfall sensor is connected with a charge amplifying circuit, the charge amplifying circuit is connected with an A/D converter, the A/D converter is connected with a main controller, and the A/D converter is used for converting an electric signal analog quantity into a digital quantity;
the rainfall sensor adopts a piezoelectric rainfall sensor, the piezoelectric rainfall sensor is designed by adopting a piezoelectric conversion principle, pressure is converted into corresponding electric signals to calculate a rainfall value, the piezoelectric conversion principle is realized by a piezoelectric acceleration sensor, when raindrops fall onto a stress surface of the piezoelectric acceleration sensor, under the action of force, a charge signal in direct proportion to the force is formed on the surface of the piezoelectric acceleration sensor, and the output charge signal is converted into a voltage signal through a charge amplification circuit;
the effect of this embodiment is that the acquisition signal intensity of improvement rainfall sensor has further improved system detection precision.
Example three:
the integrated weather six-element sensor system of the embodiment is based on the first embodiment, referring to fig. 1, wherein the temperature and humidity sensor module adopts the imitation I2C mode is connected with master controller in communication mode, the simulation I2C communication mode and I2The C communication mode adopts the same mode, and 2-wire communication is used, but the mode is similar to the I communication mode2The command format and the communication protocol of the communication mode are different;
the temperature and humidity sensor module integrates a sensing element and a signal processing circuit on a miniature circuit board, and comprises a chip, a capacitive polymer humidity measuring sensitive element and a temperature measuring element made of energy gap materials, wherein the capacitive polymer humidity measuring sensitive element and the temperature measuring element are arranged on the chip;
the temperature and humidity sensor module is connected with the 14-bit A/D converter through a serial interface circuit to realize seamless connection;
the effect of this embodiment is that the acquisition signal intensity of improvement temperature and humidity sensor has further improved system detection precision.
Example four:
the integrated weather six-element sensor system of the embodiment is based on the first embodiment, referring to fig. 1,
the air pressure sensor is in communication connection with the main controller in an SPI mode and can directly output a completely calibrated digital signal;
the air pressure sensor comprises a precise piezoresistive pressure sensor and an ADC (analog to digital converter) conversion interface, 16-bit pressure parameters can be output, and the measurement range can reach 10mbar at least and 1100mbar at most; a 16-bit temperature parameter can be output, and temperature compensation can be carried out according to the temperature parameter; the air pressure sensor has the characteristics of low voltage, low power consumption and the like;
the air pressure sensor comprises an automatic power-off switch, and can automatically realize power-off;
the air pressure sensor adopts a 3-wire interface, and can meet various communications with the main controller;
the air pressure sensor has extremely high sealing protection capability and can resist water pressure 100 meters deep;
the effect of this embodiment is that the acquisition signal intensity of atmospheric pressure sensor has further improved system detection precision.
Example five:
the integrated meteorological six-element sensor system of the embodiment is based on the first embodiment, and referring to fig. 1, the system comprises a power module and a multistage voltage reduction circuit, wherein the power module is used for providing power for a main controller, a temperature and humidity sensor module, an air pressure sensor, a wind speed and direction sensor module, a rainfall sensor and a computer on a computer terminal;
referring to fig. 2, the multistage voltage reduction circuit includes a primary voltage reduction circuit and a secondary voltage reduction circuit, the power module is connected to the primary voltage reduction circuit, the output voltage of the primary voltage reduction circuit is connected to the secondary voltage reduction circuit, and the secondary voltage reduction circuit transmits the output voltage to the temperature and humidity sensor, the air pressure sensor, the rainfall sensor and the main controller;
the ultrasonic wind speed and direction sensor has higher driving voltage, the highest output voltage of the PWM waveform generated by the main controller is only 3.3V and cannot meet the requirement, so the PWM waveform generated by the main controller needs to be boosted;
the BOOST circuit in the analog circuit is a mature circuit boosting scheme at present, has a wide boosting range and simple circuit design, is a common switching direct current boosting circuit, and can enable the output voltage to be higher than the input voltage;
therefore, the wind speed and wind direction sensor further comprises a BOOST circuit, the output voltage of the main controller is connected to the BOOST circuit for boosting, the output voltage of the primary voltage reducing circuit is connected to the BOOST circuit for boosting, the two boosted voltages are used as output voltages and transmitted to the wind speed and wind direction sensor, the output voltage of the main controller is transmitted to the wind speed and wind direction sensor through the BOOST circuit and the voltage after being stepped down by the primary voltage reducing circuit, and the two boosted voltages are used as output voltages and transmitted to the wind speed and wind direction sensor; IN fig. 3, IN is an input voltage signal, OUT is a boosted voltage signal output position, and a boosted voltage output end is directly connected with the ultrasonic wind speed and direction sensor to drive the ultrasonic wind speed and direction sensor to transmit an ultrasonic signal. IN the figure, a voltage signal at IN is used for controlling the on and off of a MOS tube Q2 behind a resistor R11, Q5 and Q2 can increase the driving capability of the MOS tube, L1 is used for storing energy when the MOS tube is on and releasing energy when the MOS tube is off, so that a pulse signal higher than an input voltage can be output, when the voltage output by L1 is higher than the voltage of a base of Q3 by 5V, a triode is turned on to drive a transducer at OUT to emit an ultrasonic signal, and when the triode is turned off, the transducer at OUT is used for receiving the ultrasonic signal and transmitting the signal to an echo signal processing circuit through a gating switch.
The power supply of the embodiment generates 12V-24V voltage, wherein the first-stage voltage reduction circuit adopts an LM22676 chip, and the LM22676 chip reduces the 12V-24V voltage to 5V; the secondary voltage reduction circuit uses an LDO chip, the LDO reduces 5V voltage to 3.3V, the 3.3V output voltage is transmitted to the temperature and humidity sensor module, the air pressure sensor, the rainfall sensor and the main controller, the main controller outputs the voltage through the BOOST voltage boosting circuit, the 5V voltage output by the primary voltage reduction circuit is transmitted to the wind speed and direction sensor through the BOOST voltage boosting circuit, and the two voltage boosting circuits are both transmitted to the wind speed and direction sensor;
the first-stage voltage reduction circuit and the second-stage voltage reduction circuit form a two-stage voltage reduction mode, the two-stage voltage reduction mode is different from the first-stage voltage reduction mode, the detection precision of the sensor can be improved in the actual use process, and the risk of influencing the sampling precision of the sensor due to the fact that only one-stage voltage reduction design is adopted is avoided;
the function of the embodiment is to solve the problem of power supply of the wind speed and direction sensor.
Example six:
according to the integrated meteorological six-element sensor system, based on the first embodiment and referring to fig. 1, the main controller adopts an STM32F103ZET6 chip based on an ARM Cortex-M3 kernel.
Example seven:
according to the integrated meteorological six-element sensor system, based on the first embodiment, referring to fig. 1, the upper computer of the computer terminal is written in the C # language, serial ports are configured on the computer, and parameters in the meteorological sensor can be easily accessed by debugging the upper computer.
Example eight:
in the integrated six-element weather sensor system of the embodiment, based on the first embodiment, referring to fig. 1, a main controller is in communication connection with an upper computer of a computer terminal, and the main controller is in communication connection with the upper computer of the computer terminal through a communication cable;
the communication cable provides three interfaces of RS232/RS485/RS422, the communication protocol provides three formats of ASCII/NMEA 0183/hexadecimal, the communication cable can be selected for use according to actual conditions, and the RS232/RS485/RS422 interface function is a selective function and can be customized according to user requirements;
the main controller receives the six meteorological element data collected by the sensor system and sends the data to the upper computer of the computer terminal for display through the communication cable, the communication cable provides three interfaces of RS232/RS485/RS422, the communication protocol provides three formats of ASCII/NMEA 0183/hexadecimal, and the data can be selectively used according to actual conditions;
the communication cable is connected with an upper computer end interface of the computer terminal and adopts a USB interface;
the communication cable is connected with the end interface of the main controller by adopting air insertion;
the provided RS232/RS485/RS422 interface function is a selective function and can be customized according to the needs of a user, so that different types of communication interfaces are reserved in the circuit design by using compatible design, and a proper communication mode is selected according to actual needs in the using and operating process. Corresponding circuit devices are welded, the cable joints are tightly clamped and are not easy to fall off under severe conditions, and meanwhile, the cable insulation layer is wear-resistant and corrosion-resistant;
the effect of this embodiment is to improve system applicability.
Example nine:
the integrated meteorological six-element sensor system of the embodiment, based on the fifth embodiment, with reference to fig. 5, includes a rainfall sensor 3, a steel cover 1, a piezoelectric acceleration sensor 2, a wind speed and direction sensor 4, a main controller 5, an air pressure sensor 6, a temperature and humidity sensor 7, and a grid 8; the main controller 5 adopts a main control board structure;
the temperature and humidity sensor 7 and the air pressure sensor 6 are arranged in the grid 8, the air pressure sensor 6 is located above the temperature and humidity sensor 7, the main controller 5 is arranged above the air pressure sensor 6, the wind speed and wind direction sensor 4 is arranged above the main controller 5, the rainfall sensor 3 is arranged above the wind speed and wind direction sensor 4, the rainfall sensor module 3 comprises a steel cover 1 and a piezoelectric acceleration sensor 2, the piezoelectric acceleration sensor 2 is mounted and attached below the rigid cover 1, and raindrops do not directly fall on the piezoelectric acceleration sensor 2;
the effect of this embodiment is compact structure, conveniently carries, makes things convenient for the dismouting.
Example ten:
the integrated weather six-element sensor system of the embodiment is based on the ninth embodiment, and referring to fig. 5 and 6,
the wind speed and direction sensors comprise 4 wind speed and direction sensors, the 4 wind speed and direction sensors are arranged in a 2x2 mode, any two wind speed and direction sensors are vertically distributed, the wind speed and direction sensors 4 are arranged in a 2x2 mode, the transducers are vertically distributed in pairs and used for measuring wind speeds in two vertical directions, finally, the actual wind speed and direction are obtained through synthesis, the time difference is obvious when the signal propagation distance in the ultrasonic transducer is long, the measurement is convenient, therefore, the transducer adopts a reflection type receiving mode, the signal transmitted by the transducer is reflected at the bottom of the steel cover, and the ultrasonic transducer at the other end receives the reflected ultrasonic signal;
the propagation speed of sound in the air can be superposed with the air flow speed in the wind direction, under the fixed detection condition, the propagation speed of ultrasonic waves in the air can correspond to a wind speed function, and the accurate wind speed and wind direction can be obtained through calculation; because the speed is greatly influenced by the temperature when sound waves are transmitted in the air, the ultrasonic wind speed and direction sensor detects in two opposite directions on two channels, the transducers are vertically distributed in pairs, the influence of the temperature on the sound wave speed can be ignored, and the detection accuracy is further improved.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (10)
1. Six key element sensor systems of integration weather, including sensor module, with sensor module communication connection's master controller and with master controller communication connection's computer terminal host computer, wherein sensor module includes temperature and humidity sensor, baroceptor, wind speed and direction sensor and rainfall sensor, its characterized in that, including the AD converter, wind speed and direction sensor passes through the AD converter and is connected to the master controller, wind speed and direction sensor adopts ultrasonic wave formula wind speed and direction sensor, be equipped with filter amplifier circuit and detection circuit between wind speed and direction sensor and the AD converter in proper order.
2. The integrated weather-meteorological six-element sensor system according to claim 1, wherein the rainfall sensor is connected to the master controller through an A/D converter, and a charge amplification circuit is arranged between the rainfall sensor and the A/D converter.
3. The integrated weather-meteorological six-element sensor system of claim 1, wherein the temperature and humidity areThe degree sensor adopts imitation I2And the mode C is in communication connection with the master controller.
4. The integrated weather-meteorological six-element sensor system according to claim 1, wherein the air pressure sensor is in communication connection with the master controller by an SPI mode.
5. The integrated six-element weather sensor system according to claim 1, wherein the system comprises a power module and a multistage voltage reduction circuit, the multistage voltage reduction circuit comprises a primary voltage reduction circuit and a secondary voltage reduction circuit, the power module is connected with the primary voltage reduction circuit, the output voltage of the primary voltage reduction circuit is connected to the secondary voltage reduction circuit, and the secondary voltage reduction circuit transmits the output voltage to the temperature and humidity sensor, the air pressure sensor, the rainfall sensor and the main controller.
6. The integrated six-element meteorological sensor system according to claim 5, wherein the system comprises a BOOST voltage BOOST circuit, the output voltage of the main controller is connected to the BOOST voltage BOOST circuit to be boosted, the output voltage of the primary voltage reduction circuit is connected to the BOOST voltage BOOST circuit to be boosted, and the two boosted voltages are transmitted to the wind speed and direction sensor as output voltages.
7. The integrated weather six-element sensor system according to claim 1, wherein the master controller is an STM32F103ZET6 chip based on an ARM Cortex-M3 kernel.
8. The integrated six-element weather sensor system according to claim 1, wherein the main controller is in communication connection with a computer on a computer terminal through a communication cable.
9. The integrated six-element weather sensor system according to claim 6, wherein the system comprises a grid, the temperature and humidity sensor and the air pressure sensor are both arranged in the grid, the air pressure sensor is arranged above the temperature and humidity sensor, the main controller is arranged above the air pressure sensor, the wind speed and direction sensor is arranged above the main controller, and the rain sensor is arranged above the wind speed and direction sensor.
10. The integrated six-element meteorological sensor system according to claim 9, wherein the anemometry sensors comprise 4 anemometry sensors, the 4 anemometry sensors are arranged in a 2x2 array, and any two anemometry sensors are vertically distributed.
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| CN109343150A (en) * | 2018-12-12 | 2019-02-15 | 南京埃森环境技术股份有限公司 | Six essential sensor systems of integrated meteorology |
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| CN109343150A (en) * | 2018-12-12 | 2019-02-15 | 南京埃森环境技术股份有限公司 | Six essential sensor systems of integrated meteorology |
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