CN105525604A - Cableless data unvarnished transmission device for static penetrometer - Google Patents
Cableless data unvarnished transmission device for static penetrometer Download PDFInfo
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- CN105525604A CN105525604A CN201610025240.6A CN201610025240A CN105525604A CN 105525604 A CN105525604 A CN 105525604A CN 201610025240 A CN201610025240 A CN 201610025240A CN 105525604 A CN105525604 A CN 105525604A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/02—Non-electrical signal transmission systems, e.g. optical systems using infrasonic, sonic or ultrasonic waves
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Abstract
The invention discloses a cableless data unvarnished transmission device for a static penetrometer. The cableless data unvarnished transmission device is characterized by comprising a receiving module and a transmitting module. The transmitting module is mounted in a probing rod and penetrates into the ground along a static penetration probe. A battery of the transmitting module is respectively connected with a first power module and a high voltage power module. A first microprocessor, a high-speed mos pipeline driving circuit, an exciting pulse generating circuit and a transmitting transducer are in signal connection in sequence. The high-voltage power module is respectively connected with the first microprocessor and the exciting pulse generating circuit. The first power module is connected with the first microprocessor. The first microprocessor and the transmitting transducer are respectively connected with the static penetration probe and an ultrasonic receiving transducer. The transmitting module is used for modulating probe data into an ultrasonic signal and transmitting the ultrasonic signal along the probing rod. The receiving module is used for receiving the ultrasonic signal from the probing rod, demodulating original data of the probe and outputting the original data to the static penetrometer. The cableless data unvarnished transmission device replaces an original cable to conduct data transmission, so that the cableless static penetration test process is realized.
Description
Technical field
The present invention relates to a kind of data penetration transmission device, particularly relate to a kind of data transmission device without cable formula static penetrometer, this device can be applicable to engineering geologic investigation and technical field of sea exploration.
Technical background
Static sounding is a kind of home position testing method in geological mapping, is applicable to weak soil, general cohesive soil, silt and sand, and having soft soil to distribute more area, static sounding can improve the degree of reliability of investigation result.
Static penetrometer used is at present by popping one's head in, and more piece feeler lever and pressure cap composition, in probe, integrated multiple sensors can gather multiple geologic parameter in test process, and survey data is sent to ground installation by the nine core cables be through in more piece feeler lever.In cone penetration test process, probe is connected to cable and there is a lot of inconvenience, often need several personnel to coordinate when connecting feeler lever feeler lever is added one by one, cable and connector be easily accidental damage also, these strongly limit speed and the quality of exploration, are also the large obstacles realizing automation mechanized operation simultaneously.
Be unfavorable for the deficiency operated for cable, domestic and international only a few producer adopts different technologies to have developed without the full-automatic static sounding system of cable, mainly contains two kinds of transmission means: wireless radio transmission, optic communication transmission.Although these two kinds of transmission means solve the inconvenience of cable mode to a certain extent, its drawback is also obvious.For wireless radio transmission, because feeler lever internal diameter is generally less than 20mm, radio can only realize more short-range transmission in the air column of this 20mm diameter, This significantly limits depth of exploration.For optic communication transmission, first because opto-electronic receiver head requires higher cleanliness factor, increase maintenance cost; And same when feeler lever length is longer, that feeler lever easily occurs to a certain degree is bending, and in uniform dielectric, light is then strict linear transmission, so communication reliability also can significantly decline when depth of exploration strengthens.These two kinds also have an obvious defect without cable formula transmission means in addition, exactly when static sounding be work in seabed time, can be full of by seawater in feeler lever, and light and radio all cannot be able to realize communicating because of in the transmission attenuation in water too soon and substantially.
From foregoing, the domestic and international research transmitted without cable formula about data in static sounding at present can't meet actual needs well.
Summary of the invention
Technical problem to be solved by this invention is for the deficiency in the problem of above-mentioned existing feeler inspection operation and existing solution, there is provided a kind of structure simple, reasonable in design, use simple operation, reliability is high, operating efficiency high without cable formula static penetrometer data transmission device.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of static penetrometer, without cable formula data penetration transmission device, comprises receiver module and loads feeler lever inner and with the transmitter module of static sounding probe injection underground; Described transmitter module comprises first microprocessor, high speed mos tube drive circuit, driving pulse generation circuit, battery, the first power module, high-voltage power module and transmitting transducer; Battery is connected with the first power module and high-voltage power module respectively, and first microprocessor, high speed mos tube drive circuit, driving pulse produce circuit and be connected with transmitting transducer successively signal; High-voltage power module produces circuit with first microprocessor and driving pulse respectively and is connected; First power module is connected with first microprocessor; First microprocessor and transmitting transducer are connected with static sounding probe and ultrasonic wave receiving transducer respectively;
Described receiver module comprises the second microprocessor, ultrasonic wave receiving transducer, elementary instrument differential amplifier circuit, signal amplification circuit, bandpass filter, level comparator, positive-negative power module, second source module and battery; Second microprocessor, level comparator, bandpass filter, signal amplification circuit, elementary instrument differential amplifier circuit are connected with ultrasonic wave receiving transducer successively signal; Second microprocessor is connected with signal amplification circuit; Positive-negative power module is connected with level comparator, bandpass filter, signal amplification circuit and elementary instrument differential amplifier circuit respectively; Second source module respectively with battery, the second microprocessor and positive-negative power model calling; Second microprocessor connects with static sounding analyzer.
For realizing the object of the invention further, preferably, described first microprocessor is a single-chip microcomputer STM8S103F3P6 carrying senior timer function; Static sounding probe is received the survey data of static sounding probe input by first microprocessor by serial ports, be stored in data buffer zone; Program timing poll buffer area, therefrom takes out data and carries out Bose-Chaudhuri-Hocquenghem Code; Add that guidance code, byte are digital, CRC check code forms a complete packet to the data of having encoded again, packet data then sends into modulating data buffer area; Program timing poll modulating data buffer area, if there are data, takes out 1bit data, and according to the generation phase place of data point reuse timer pwm ripple, opens corresponding pin level output function, produce the modulation signal of a code-element period; If the countless certificate in modulating data buffer area, then timeing closing device pin level output function, produces without modulation signal.
Preferably, described high speed mos tube drive circuit comprises grid displacement driving circuit and quick breaking circuit; Wherein, 2n3904 and 2n3906 forms the grid displacement driving circuit that inside is the plug-type driving of bipolar transistor; Diode and pnp pipe form quick breaking circuit.
Preferably, described transmitting transducer adopts compressional wave transducer; Described receiving transducer adopts the compressional wave transducer identical with transmitting transducer; Described driving pulse generation circuit forms primarily of the high speed diode 31gf4 of high-voltage high-speed switch mos pipe IRF840,20nF high-voltage energy storage capacitor and two Limited Current trends.
Preferably, described high-voltage power module comprises boost switching circuit and MCP4018 digital regulation resistance; TPS40210DGQR Switching Power Supply managing chip is used to form a boost switching circuit; MCP4018 digital regulation resistance is used to replace output voltage feedback resistance; Wherein MCP4018 digital regulation resistance is connected with first microprocessor by i2c bus, and boost switching circuit exports and is also connected with an AD input pin of first microprocessor through a divider resistance.
Preferably, described battery is that four joint 18650 lithium batteries are composed in series, and the first power module adopts Switching Power Supply managing chip LM2675M.
Preferably, described elementary instrument differential amplifier circuit adopts AD620 instrumentation amplifier; Described signal amplifier adopts AD623 programmable amplifier.
Preferably, described bandpass filter adopts TS5532 to form quadravalence Butterworth filter.
Preferably, described level comparator is made up of LM393 voltage comparator.
Preferably, described battery is the lithium battery of band output protection plate; Described second source module is the Switching Boost Converter Used circuit adopting MP1542 chip to form.
Preferably, described positive-negative power module is formed primarily of charge pump reversed polarity switch integrated regulator MAX660.
Preferably, STM32F103VET6 single-chip microcomputer selected by described second microprocessor, second microprocessor catches input waveform by timer capture function, the time point of tracer signal rising edge and trailing edge respectively, calculate high level lasting time, if high level time is less than 0.9 carrier cycle, the intermediate time of record high level; High level time is compared moment value with the signal near a code-element period time point, draws phase information, be recorded to buffer area; The guidance code degree of correlation is calculated to the data in buffer area, higher than the point of discrimination threshold at degree of correlation peak, upgrades synchronizing information, start data demodulates; First decode valid data byte number, then receive all valid data and check code according to byte number, then decoding FEC is carried out to valid data and check code, finally check that whether data are wrong according to check code; If data are errorless, then export data by serial ports to host computer, and start next decoding periods; If data still verify failure after decoding FEC, then directly abandon, and start next decoding periods.
The present invention compared with prior art has the following advantages:
1) the present invention adopts ultrasonic transmission data, alleviate the difficulty of cone penetration test, shirtsleeve operation can realize the in-situ test of deep formation more rapidly and accurately, overcome conventional static feeler inspection investigation depth limited, and use cable and the joint that brings is fragile, defective insulation, operating cost time etc. deficiency, increase substantially depth of exploration and quality, reduction exploration cost.
2) be of the present inventionly embodied as an independently data transmission module, interface and original cable interface compatible, directly can be installed on existing static penetrometer and replace cable to use, greatly save device upgrade cost;
3) the present invention adopts the mode of steel pipe sound communication, realizes wider scope on probation.Data import transmits along steel pipe with the form of mechanical wave on ultrasonic wave, has higher reliability, also can well adapt to the situation that foreign material in feeler lever enter the even inner water-filling of feeler lever when water-bed operation simultaneously.
4) power supply mode of the present invention is flexible, and adopt 4 joint 18650 powered battery, and circuit realiration adopts low-power consumption components and parts and scheme, the system of ensure that can at least continuous operation more than 6 hours.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of static penetrometer of the present invention without cable formula data penetration transmission device.
Fig. 2 is that static penetrometer of the present invention is without transmitter module process chart in cable formula data penetration transmission device.
Fig. 3 is that static penetrometer of the present invention is without receiver module process chart in cable formula data penetration transmission device.
Shown in figure: transmitter module 1, first microprocessor 1 ?1, high speed mos tube drive circuit 1 ?2, driving pulse produce circuit 1 ?3, battery 1 ?4, first power module 1 ?5, high-voltage power module 1 ?6, transmitting transducer 1 ?7, receiver module 2, second microprocessor 2 ?1, level comparator 2 ?2, bandpass filter 2 ?3, signal amplification circuit 2 ?4, elementary instrument differential amplifier circuit 2 ?5, ultrasonic wave receiving transducer 2 ?6, second source module 2 ?7, positive-negative power module 2 ?8, battery 2 ?9, static sounding probe 3, static sounding analyzer 4, feeler lever 5.
Detailed description of the invention
For understanding the present invention better, below in conjunction with accompanying drawing, technical scheme of the present invention is further described, but embodiments of the present invention are not limit so.
As shown in Figure 1, a kind of static penetrometer, without cable formula data penetration transmission device, comprises that to load feeler lever 5 inner and with the transmitter module 1 of static sounding probe 3 injection underground and receiver module 2; Described transmitter module 1 connects with static sounding probe 3, and receiver module 2 connects with static sounding analyzer 4.Transmitter module 1 is responsible for receiving detection data from static sounding probe 3, and converts data to ultrasonic signal in real time and launched by drilling rod; Receiver module 2 is responsible for the ultrasonic signal receiving the carry information transmitted along steel pipe, and therefrom extracts detection data and be sent to static sounding analyzer 4.
Transmitter module 1 comprise first microprocessor 1 ?1, high speed mos tube drive circuit 1 ?2, driving pulse produce circuit 1 ?3, battery 1 ?the 4, first power module 1 ?5, high-voltage power module 1 ?6 and ultrasound transmitting transducer 1 ?7; Battery 1 ?4 respectively with the first power module 1 ?5 and high-voltage power module 1 ?6 to be connected, first microprocessor 1 ?1, high speed mos tube drive circuit 1 ?2, driving pulse produce circuit 1 ?3 with transmitting transducer 1 ?7 successively signal be connected; High-voltage power module 1 ?6 respectively with first microprocessor 1 ?1 and driving pulse produce circuit 1 ?3 to be connected; First power module 1 ?5 with first microprocessor 1 ?1 to be connected; First microprocessor 1 ?1 with transmitting transducer 1 ?7 respectively with static sounding probe 3 and ultrasonic wave receiving transducer 2 ?6 to be connected; High-voltage power module 1 ?6 for driving pulse produce circuit 1 ?3 provide high-voltage power supply.
Receiver module 2 comprise the second microprocessor 2 ?1, ultrasonic wave receiving transducer 2 ?6, elementary instrument differential amplifier circuit 2 ?5, signal amplification circuit 2 ?4, bandpass filter 2 ?3, level comparator 2 ?2, positive-negative power module 2 ?8, second source module 2 ?7 and battery 2 ?9; Second microprocessor 2 ?1, level comparator 2 ?2, bandpass filter 2 ?3, signal amplification circuit 2 ?4, elementary instrument with differential amplifier circuit 2 ?5 with ultrasonic wave receiving transducer 2 ?6 successively signal be connected; Second microprocessor 2 ?1 with signal amplification circuit 2 ?4 to be connected; Positive-negative power module 2 ?8 respectively with level comparator 2 ?2, bandpass filter 2 ?3, signal amplification circuit 2 ?4 and elementary instrument with differential amplifier circuit 2 ?5 to be connected, be each electricity consumption module for power supply; Second source module 2 ?7 respectively with battery 2 ?the 9, second microprocessor 2 ?1 and positive-negative power module 2 ?8 to be connected; Second microprocessor 2 ?1 to connect with static sounding analyzer 4.
As shown in Figure 2, first microprocessor 1 ?1 be a single-chip microcomputer STM8S103F3P6 carrying senior timer function, the survey data that static sounding probe 3 inputs is packed and is converted to DPSK modulation signal, receive the survey data of static sounding probe 3 input specifically by serial ports, be stored in data buffer zone; Program timing poll buffer area, therefrom takes out data and carries out Bose-Chaudhuri-Hocquenghem Code; Add that guidance code, byte are digital, CRC check code forms a complete packet to the data of having encoded again, packet data then sends into modulating data buffer area; Program (first microprocessor 1 ?1 in be responsible for the program producing modulation waveform) automatic regular polling modulating data buffer area, if there are data, take out 1bit data, and according to the generation phase place of data point reuse timer pwm ripple, open corresponding pin level output function, produce the modulation signal of a code-element period; If the countless certificate in modulating data buffer area, then timeing closing device pin level output function, produces without modulation signal.
High speed mos tube drive circuit 1 ?2 comprise grid displacement driving circuit and quick breaking circuit; Wherein, 2n3904 and 2n3906 forms the grid displacement driving circuit that inside is the plug-type driving of bipolar transistor; Diode and pnp pipe form quick breaking circuit.High speed mos tube drive circuit 1 ?2 make first microprocessor 1 ?the 1 pwm signal exported can to driving pulse produce circuit 1 ?high speed mos pipe in 3 open fast and turn off.High speed mos tube drive circuit 1 ?2 achieve to first microprocessor 1 ?the function of level translation of 1 modulation signal exported, strengthen the driving force of modulation signal, ensure that the high-speed switching capability to rear class high speed mos pipe.
High-voltage power module 1 ?6 comprise boost switching circuit and MCP4018 digital regulation resistance; Use TPS40210DGQR Switching Power Supply managing chip to form a boost switching circuit, the series voltage of 4 joint lithium batteries is boosted to the highest 200v; MCP4018 digital regulation resistance is used to replace output voltage feedback resistance, for adjusting the output voltage of booster circuit.Wherein MCP4018 by i2c bus and first microprocessor 1 ?1 to be connected, provide program-controlled resistor to regulate interface, booster circuit output also through a divider resistance and first microprocessor 1 ?1 an AD input pin be connected.Thus, first microprocessor 1 ?1 can monitor current boost module output voltage, also can adjust output voltage.High-voltage power module can as driving pulse produce circuit 1 ?3 high-voltage power supply, ensure the amplitude of output drive signal.
Battery 1 ?4 be four joint 18650 lithium batteries series connection, directly to high-voltage power module 1 ?6 and first power module 1 ?5 to power, the first power module 1 ?5 adopt Switching Power Supply managing chip LM2675M that input voltage is carried out lowering and stabilizing blood pressure to 5v, power for processor.For first microprocessor 1 ?1 provide and stablize suitable supply voltage, ensure that the steady operation of microprocessor.
Driving pulse produce circuit 1 ?3 for generation of the spike of excitation transducer, spike adopts the electric capacity method that sparks to produce, circuit forms primarily of the high speed diode 31gf4 of high-voltage high-speed switch mos pipe IRF840,20nF high-voltage energy storage capacitor and two Limited Current trends, and the storage capacitor come in control circuit by the switch of control mos pipe during work charges from high-voltage power module 1 ?6 or discharges toward transmitting transducer 1 ?7.Driving pulse produce circuit 1 ?3 achieve function modulation signal being converted to transducer drive signal, according to modulation signal, accurately can export high-pressure sharp pulse and effectively encourage transducer work, produce ultrasonic signal.
Transmitting transducer 1 ?7 YT1409 adopting Ultrasonics Corporation of E-TEN Corp to produce ?30 bolt-tightened type compressional wave transducers, be mechanical energy for converting electrical energy, drive steel pipe to carry out the vibration of supersonic range.Ultrasound transmitting transducer achieves the function of acoustic-electric conversion, efficiently and accurately the driving signal of telecommunication is converted to mechanical oscillation signal.
Receiving transducer 2-6 adopts the compressional wave transducer identical with transmitting transducer 1-7, transfers the corresponding signal of telecommunication to, for rear class process for the vibration wave in the working frequency range that passed over by steel pipe.
Elementary instrument differential amplifier circuit 2-5 adopts AD620 instrumentation amplifier, mainly there is high cmrr, high input impedance, low noise, low linearity error, low offset drift gain arrange the feature such as flexibly, can be used for the small-signal that receiving transducer 2-6 exports being carried out the preliminary supply late-class circuit that amplifies and do further process.
Signal amplifier 2-4 adopts AD623 programmable amplifier, signal is amplified further, because elementary amplifying circuit 2-5 fixes multiplication factor and the amplitude of Received signal strength may change in a big way, so the multiplication factor of this grade of amplifier can by the second microprocessor 2-1 by programme-control, signal is amplified to a suitable amplitude.
Bandpass filter 2-3 adopts TS5532 to form quadravalence Butterworth filter, for all noises outside filtering telecommunications band.Except the vibration of transmitting transducer generation in actual working environment, steel pipe also also exists the vibration that other factors various cause, these vibrations all can be converted into the signal of telecommunication on receiving transducer, the signal of telecommunication also superposes various environment electromagnetic noise simultaneously, but because the noise of the overwhelming majority is all distributed in outside communication band, by postifiler by its filtering, improve the signal to noise ratio of signal.
Level comparator 2-2 is made up of LM393 voltage comparator, is mainly the PWM ripple carrying phase information that first microprocessor 1-1 exports by signals revivification, for the second microprocessor 2-1 process.Specifically the sinusoidal wave signal that wave filter exports is converted to square-wave signal.
Battery 2-9 is the lithium polymer battery of a band output protection plate; power directly to second source module 2-7; second source module 2-7 is the Switching Boost Converter Used circuit that an employing MP1542 chip is formed; the input voltage of lithium battery 3-4.2v can be converted to the voltage stabilizing output voltage of 5v, and the load capacity of maximum 2A is provided.Second source module 2-7 is mainly the second microprocessor 2-1 and positive-negative power module 2-8 and powers.
Positive-negative power module 2-8 is formed primarily of charge pump reversed polarity switch integrated regulator MAX660, MAX660 can become+5v the voltage of input-5v the voltage of negative output, + the 5v inputted with second source module 2-7 again forms one ± 5v power module, is elementary instrument differential amplifier circuit 2-5, signal amplification circuit 2-4, bandpass filter 2-3 and these input signal conditioning module for power supply of level comparator 2-2.
As shown in Figure 3, the STM32F103VET6 single-chip microcomputer that the second microprocessor 2-1 selects disposal ability stronger, demodulates survey data wherein from input waveform data, and exports to host computer static sounding analyzer 4 by serial ports.Be specially: the second microprocessor 2-1 catches input waveform by timer capture function, the time point of tracer signal rising edge and trailing edge respectively, calculate high level lasting time, if high level time is less than 0.9 carrier cycle, the intermediate time of record high level; High level time is compared moment value with the signal near a code-element period time point, draws phase information, be recorded to buffer area; The guidance code degree of correlation is calculated to the data in buffer area, higher than the point of discrimination threshold at degree of correlation peak, upgrades synchronizing information, start data demodulates; First decode valid data byte number, then receive all valid data and check code according to byte number, then decoding FEC is carried out to valid data and check code, finally check that whether data are wrong according to check code; If data are errorless, then export data by serial ports to host computer, and start next decoding periods; If data still verify failure after decoding FEC, then directly abandon, and start next decoding periods.
Using method:
Transmitter module 1 is designed to strip, and Breadth Maximum is 18mm, therefore transmitter module 1 can be enclosed in a joint steel pipe, and the reserved interface mated with static sounding probe 3.Directly be connected with static sounding probe 3 steel pipe one end of this band transmitter module 1, one end connects common feeler lever in addition.
Receiver module 2 encapsulates into a steel column, can be directly connected on final section feeler lever.This steel column being packaged with receiver module 2 also reserves the cable interface matched with static sounding analyzer 4 data-interface simultaneously.
When static sounding probe exports data, Data Modulation can be just that ultrasonic signal is transferred to receiving terminal along feeler lever by transmitter module, the effective ultrasonic signal received then can be demodulated into original probe and export data by receiving terminal, export to static sounding analyzer, thus replace the data-transformation facility of original cable, realize experience cone penetration test in data transmission without cable.
The invention provides a kind of structure simple, reasonable in design, use simple operation, reliability is high, operating efficiency high without cable formula static penetrometer data transmission device.This solves in current static sounding without cable formula static penetrometer data transmission device the deficiency using cable transmission data to exist, easily damage as assembled difficulty, cable and joint, and the data-interface of described data penetration transmission device and original cable interface are compatible, can be directly used in existingly has cable static penetrometer directly to replace cable to carry out work.Described data penetration transmission device adopts sound communication transmission means, transmits data transmission module and compares, have the wider scope of application and more simply use operation with the external existing wireless radio transmission for static sounding probe with optic communication.
Above-mentioned embodiment not imposes any restrictions the present invention, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solution of the present invention.
Claims (10)
1. static penetrometer is without a cable formula data penetration transmission device, it is characterized in that comprising receiver module and load feeler lever inner and with the transmitter module of static sounding probe injection underground; Described transmitter module comprises first microprocessor, high speed mos tube drive circuit, driving pulse generation circuit, battery, the first power module, high-voltage power module and transmitting transducer; Battery is connected with the first power module and high-voltage power module respectively, and first microprocessor, high speed mos tube drive circuit, driving pulse produce circuit and be connected with transmitting transducer successively signal; High-voltage power module produces circuit with first microprocessor and driving pulse respectively and is connected; First power module is connected with first microprocessor; First microprocessor and transmitting transducer are connected with static sounding probe and ultrasonic wave receiving transducer respectively;
Described receiver module comprises the second microprocessor, ultrasonic wave receiving transducer, elementary instrument differential amplifier circuit, signal amplification circuit, bandpass filter, level comparator, positive-negative power module, second source module and battery; Second microprocessor, level comparator, bandpass filter, signal amplification circuit, elementary instrument differential amplifier circuit are connected with ultrasonic wave receiving transducer successively signal; Second microprocessor is connected with signal amplification circuit; Positive-negative power module is connected with level comparator, bandpass filter, signal amplification circuit and elementary instrument differential amplifier circuit respectively; Second source module respectively with battery, the second microprocessor and positive-negative power model calling; Second microprocessor connects with static sounding analyzer.
2. static penetrometer according to claim 1 is without cable formula data penetration transmission device, it is characterized in that, described first microprocessor is a single-chip microcomputer STM8S103F3P6 carrying senior timer function; Static sounding probe is received the survey data of static sounding probe input by first microprocessor by serial ports, be stored in data buffer zone; Program timing poll buffer area, therefrom takes out data and carries out Bose-Chaudhuri-Hocquenghem Code; Add that guidance code, byte are digital, CRC check code forms a complete packet to the data of having encoded again, packet data then sends into modulating data buffer area; Program timing poll modulating data buffer area, if there are data, takes out 1bit data, and according to the generation phase place of data point reuse timer pwm ripple, opens corresponding pin level output function, produce the modulation signal of a code-element period; If the countless certificate in modulating data buffer area, then timeing closing device pin level output function, produces without modulation signal.
3. static penetrometer according to claim 1 is without cable formula data penetration transmission device, it is characterized in that, described high speed mos tube drive circuit comprises grid displacement driving circuit and quick breaking circuit; Wherein, 2n3904 and 2n3906 forms the grid displacement driving circuit that inside is the plug-type driving of bipolar transistor; Diode and pnp pipe form quick breaking circuit.
4. static penetrometer according to claim 1 is without cable formula data penetration transmission device, it is characterized in that, described transmitting transducer adopts compressional wave transducer; Described receiving transducer adopts the compressional wave transducer identical with transmitting transducer; Described driving pulse generation circuit forms primarily of the high speed diode 31gf4 of high-voltage high-speed switch mos pipe IRF840,20nF high-voltage energy storage capacitor and two Limited Current trends.
5. static penetrometer according to claim 1 is without cable formula data penetration transmission device, it is characterized in that, described high-voltage power module comprises boost switching circuit and MCP4018 digital regulation resistance; TPS40210DGQR Switching Power Supply managing chip is used to form a boost switching circuit; MCP4018 digital regulation resistance is used to replace output voltage feedback resistance; Wherein MCP4018 digital regulation resistance is connected with first microprocessor by i2c bus, and boost switching circuit exports and is also connected with an AD input pin of first microprocessor through a divider resistance.
6. static penetrometer according to claim 1 is without cable formula data penetration transmission device, it is characterized in that, described battery is that four joint 18650 lithium batteries are composed in series, and the first power module adopts Switching Power Supply managing chip LM2675M.
7. static penetrometer according to claim 1 is without cable formula data penetration transmission device, it is characterized in that, described elementary instrument differential amplifier circuit adopts AD620 instrumentation amplifier; Described signal amplifier adopts AD623 programmable amplifier; Described bandpass filter adopts TS5532 to form quadravalence Butterworth filter; Described level comparator is made up of LM393 voltage comparator.
8. static penetrometer according to claim 1 is without cable formula data penetration transmission device, it is characterized in that, described battery is the lithium battery of band output protection plate; Described second source module is the Switching Boost Converter Used circuit adopting MP1542 chip to form.
9. static penetrometer according to claim 1 is without cable formula data penetration transmission device, it is characterized in that, described positive-negative power module is formed primarily of charge pump reversed polarity switch integrated regulator MAX660.
10. static penetrometer according to claim 1 is without cable formula data penetration transmission device, it is characterized in that, STM32F103VET6 single-chip microcomputer selected by described second microprocessor, second microprocessor catches input waveform by timer capture function, the time point of tracer signal rising edge and trailing edge respectively, calculate high level lasting time, if high level time is less than 0.9 carrier cycle, the intermediate time of record high level; High level time is compared moment value with the signal near a code-element period time point, draws phase information, be recorded to buffer area; The guidance code degree of correlation is calculated to the data in buffer area, higher than the point of discrimination threshold at degree of correlation peak, upgrades synchronizing information, start data demodulates; First decode valid data byte number, then receive all valid data and check code according to byte number, then decoding FEC is carried out to valid data and check code, finally check that whether data are wrong according to check code; If data are errorless, then export data by serial ports to host computer, and start next decoding periods; If data still verify failure after decoding FEC, then directly abandon, and start next decoding periods.
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| CN109031469A (en) * | 2018-06-25 | 2018-12-18 | 成都智棚农业科技有限公司 | Integral photovoltaic is wireless weather station |
| CN110336579A (en) * | 2019-07-16 | 2019-10-15 | 武汉磐索地勘科技有限公司 | The untethered feeler lever communication means of tandem type and circuit |
| CN110365356A (en) * | 2019-06-20 | 2019-10-22 | 东南大学 | The device of hole pressure touching methods test data wireless transmission can be achieved |
| CN110359441A (en) * | 2019-06-20 | 2019-10-22 | 东南大学 | Wireless hole pressure touching methods test macro based on sonic transmissions |
| CN110424913A (en) * | 2019-07-16 | 2019-11-08 | 武汉磐索地勘科技有限公司 | A kind of method that the untethered feeler lever of tandem type obtains survey data |
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| CN2038259U (en) * | 1988-09-12 | 1989-05-24 | 李敏生 | Radio signal transmitting device of static contact-detector |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031469A (en) * | 2018-06-25 | 2018-12-18 | 成都智棚农业科技有限公司 | Integral photovoltaic is wireless weather station |
| CN110365356A (en) * | 2019-06-20 | 2019-10-22 | 东南大学 | The device of hole pressure touching methods test data wireless transmission can be achieved |
| CN110359441A (en) * | 2019-06-20 | 2019-10-22 | 东南大学 | Wireless hole pressure touching methods test macro based on sonic transmissions |
| CN110336579A (en) * | 2019-07-16 | 2019-10-15 | 武汉磐索地勘科技有限公司 | The untethered feeler lever communication means of tandem type and circuit |
| CN110424913A (en) * | 2019-07-16 | 2019-11-08 | 武汉磐索地勘科技有限公司 | A kind of method that the untethered feeler lever of tandem type obtains survey data |
| CN110424913B (en) * | 2019-07-16 | 2022-02-01 | 武汉磐索地勘科技有限公司 | Method for acquiring exploration data by cascading type cableless probe rod |
| CN110336579B (en) * | 2019-07-16 | 2024-06-07 | 武汉磐索地勘科技有限公司 | Cascade type cable-free probe rod communication method and circuit |
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| Publication number | Publication date |
|---|---|
| CN105525604B (en) | 2017-09-22 |
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