CN104675389A - Composite high-speed collection and transmission system - Google Patents
Composite high-speed collection and transmission system Download PDFInfo
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- CN104675389A CN104675389A CN201410469384.1A CN201410469384A CN104675389A CN 104675389 A CN104675389 A CN 104675389A CN 201410469384 A CN201410469384 A CN 201410469384A CN 104675389 A CN104675389 A CN 104675389A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 73
- 239000002131 composite material Substances 0.000 title abstract 3
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims description 65
- 238000001914 filtration Methods 0.000 claims description 7
- 230000005669 field effect Effects 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000005553 drilling Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Disclosed is a composite high-speed collection and transmission system. When a first connector is connected with a voltage-type pressure sensor, a first control end of a single chip microcomputer processing unit outputs a first control signal to enable a second end and a third end of a first electronic switch to be communicated, a voltage collection unit receives voltage from a battery pack and outputs a voltage signal received through the first connector to a low-pass filter, the low-pass filter filters the received voltage signal and then outputs the same to an analog-digital converter, the analog-digital converter converts the received voltage signal into a digital signal and then outputs the digital signal to the single chip microcomputer processing unit, and a USB-TTL conversion circuit receives the digital signal from the single chip microcomputer processing unit, converts the same into a USB signal and then outputs the USB signal to a computer of a remote monitoring center through a second connector. The composite high-speed collection and transmission system is high in data transmission rate, high in reliability and high in interference resistance.
Description
Technical field
The present invention relates to a kind of high speed acquisition and transmission system, particularly the compound high speed acquisition of aboveground mud pressure signal and transmission system in a kind of field of oil drilling.
Background technology
Intelligent drilling instrument (rotary steering, vertical drilling) in field of oil drilling needs when underground work real-time to carry out bidirectional data communication with ground watch-dog, and uploading and passing down of data is that pulse frequency according to the mud pressure in special communication protocol adjustment wellbore tubular realizes.Wherein, downhole well tool is transferred to ground watch-dog by changing the continual various state parameters by downhole well tool of mud-pressure pulses frequency, and control instruction is transferred to downhole well tool to control it by changing mud-pressure pulses frequency by ground watch-dog simultaneously.
The watch-dog transmission signal gone up earthward due to the place of km a few from down-hole is distant, the mud pressure pulse signal that ground watch-dog may be caused to receive is very faint and be subject to a lot of humorous wave interference, and current existing ground acquisition and transmission equipment not only transfer rate is low, poor reliability, poor anti jamming capability, packet loss is serious, erroneous judgement and the maloperation of operating personnel can be caused, and function singleness, application surface are narrow, do not possess the sample and transform ability of universal integrated, under different environment for use, often have significant limitation.
Summary of the invention
Given this, the invention provides a kind of compound transceiver, possess high accuracy, two-forty, jamproof mud pressure sample and transform system, the not only acquisition mode of compatible current mode and voltage-type two kinds of pressure sensors, also be integrated with radio-type and the two kinds of data-transmission modes having line style, and merge transmitter and receiver in one, aboveground on-the-spot varying environment and demand can have been adapted to.
A kind of compound high speed acquisition and transmission system, comprise a shell, be arranged on one first connector of described enclosure, one voltage acquisition unit, one low pass filter, one analog-digital converter, one single-chip microcomputer processing unit, one battery management circuit, one USB-TTL change-over circuit, one second connector, one battery pack, one press button and one first electronic switch, the input of described battery management circuit connects the first output of described battery pack through described press button, the output of described battery management circuit connects the voltage end of described single-chip microcomputer processing unit, described low pass filter, described analog-digital converter, described USB-TTL change-over circuit, described wireless radio frequency circuit, when described press button is pressed, described battery pack is by the voltage end of described battery management circuit to described single-chip microcomputer processing unit, described low pass filter, described analog-digital converter, described USB-TTL change-over circuit, described wireless radio frequency circuit is powered, the input of described voltage acquisition unit connects described first connector, the output of described voltage acquisition unit connects the first input end of described low pass filter, the output of described low pass filter connects the input of described analog-digital converter, the output of described analog-digital converter connects the input of described single-chip microcomputer processing unit, first control end of described single-chip microcomputer processing unit connects the first end of described first electronic switch, second end of described first electronic switch connects the second output of described battery pack, the voltage end of voltage acquisition unit described in the three-terminal link of described first electronic switch, the output of described single-chip microcomputer processing unit connects the input of described USB-TTL change-over circuit, the output of described USB-TTL change-over circuit connects described second connector, when described first connector connects a voltage-type pressure sensor, first control end of described single-chip microcomputer processing unit exports the first control signal to the first end of described first electronic switch, second end of described first electronic switch is communicated with the 3rd end, the voltage end of described voltage acquisition unit by described first electronic switch from described battery pack receiver voltage, the voltage signal received from described voltage-type pressure sensor by described first connector is exported to described low pass filter by the input of described voltage acquisition unit, filtered voltage signal is exported to described analog-digital converter after carrying out filtering to the voltage signal received by described low pass filter, being converted to after data signal through filtered voltage signal of receiving is exported to described single-chip microcomputer processing unit by described analog-digital converter, described single-chip microcomputer processing unit exports to described USB-TTL change-over circuit after the data signal received being processed, exported to the computer of remote monitoring center by described second connector after the data signal received is converted to usb signal by described USB-TTL change-over circuit.
Described compound high speed acquisition and transmission system can to gather voltage signal or current signal for voltage-type or current mode pressure sensor and after the signal collected is processed by wired or wireless way for transmitting to the computer at remote monitoring center, thus make the monitor staff of described remote monitoring center to be monitored drilling tool by described computer and control.Described compound high speed acquisition and transmission system transmitted data rates is high, reliability is high and antijamming capability is strong, realizes the universal integrated of the collection of mud pressure pulse signal, transmission and reception.
Accompanying drawing explanation
Fig. 1 is the block diagram of the better embodiment of the compound high speed acquisition of the present invention and transmission system.
Fig. 2 is that compound high speed acquisition in Fig. 1 and transmission system transmit the schematic diagram of data by wired mode.
Fig. 3 is the schematic diagram that compound high speed acquisition in Fig. 1 and transmission system wirelessly transmit data.
Component symbol explanation
Detailed description of the invention
Please refer to Fig. 1 to Fig. 3, compound high speed acquisition of the present invention and transmission system 100 are applied to field of oil drilling, for gathering aboveground mud pressure pulse signal and transmitting, can communicate with the drilling tool of down-hole to make the computer 1 of remote monitoring center.The better embodiment of described compound high speed acquisition and transmission system 100 comprises a shell 110, be arranged on one first connector 10 of described shell 110 inside, one voltage acquisition unit 20, one low pass filter 40, one analog-digital converter 50, one single-chip microcomputer processing unit 60, one battery management circuit 70, one USB-TTL change-over circuit 91, one second connector 92, one battery pack B1, one button switch K 1 and an electronic switch (are P-channel field-effect transistor (PEFT) pipe Q1 in the present embodiment, the grid of the corresponding described FET Q1 of the first to the 3rd end difference of described electronic switch, drain electrode and source electrode).In the present embodiment, described first connector 10 is Lemo 5 core socket, is arranged on voltage-type pressure sensor 21 on hydraulic fill pipeline or a current mode pressure sensor 31 for connecting one; Described second connector 92 is a USB connector, and for connecting a computer 1 of Surveillance center, described low pass filter 40 is that 2 passages 6 are situated between low pass filter; Described analog-digital converter 50 is 24 analog-digital converters, and described battery pack B1 is made up of 6 joint chargeable lithium cells.Described first connector 10 is arranged on the side 101 of described shell 110, and described button switch K 1 and described second connector 92 are arranged on the side 102 of described shell 110.Described shell 110 is blast shield metal shell, can prevent outside electromagnetic interference, and can waterproof.
The input of described battery management circuit 70 connects first output 1 of described battery pack B1 through described button switch K 1, the output of described battery management circuit 70 connects the voltage end 1 of described single-chip microcomputer processing unit 60, low pass filter 40, analog-digital converter 50, USB-TTL change-over circuit 91, wireless radio frequency circuit 80 (not shown).When described button switch K 1 is pressed (i.e. conducting), battery pack B1 is powered to the voltage end 1 of single-chip microcomputer processing unit 60, low pass filter 40, analog-digital converter 50, USB-TTL change-over circuit 91, wireless radio frequency circuit 80 by battery management circuit 70.The input 1 of described voltage acquisition unit 20 connects described first connector 10, the output 2 of described voltage acquisition unit 20 connects the first input end 1 of described low pass filter 40, the output 3 of described low pass filter 40 connects the input of described analog-digital converter 50, the output of described analog-digital converter 50 connects the input 4 of described single-chip microcomputer processing unit 60, first control end 2 of described single-chip microcomputer processing unit 60 connects the grid of described FET Q1, the drain electrode of described FET Q1 connects second output 2 of described battery pack B1, the source electrode of described FET Q1 connects the voltage end 3 of described voltage acquisition unit 20.The output 6 of described single-chip microcomputer processing unit 60 connects the input of described USB-TTL change-over circuit 91, and the output of described USB-TTL change-over circuit 91 connects described second connector 92.
When described first connector 10 connects described voltage-type pressure sensor 21, first control end 2 of described single-chip microcomputer processing unit 60 export the first control signal (as a low level signal) to as described in the grid of FET Q1, described FET Q1 conducting, the voltage end 3 of described voltage acquisition unit 20 is started working from described battery pack B1 receiver voltage by described FET Q1, the input of described voltage acquisition unit 20 exports to described low pass filter 40 by by described first connector 10 from the voltage signal that described voltage-type pressure sensor 21 receives, filtered voltage signal is exported to described analog-digital converter 50 after carrying out filtering (i.e. filtering interference signals) to the voltage signal received by described low pass filter 40, being converted to after data signal through filtered voltage signal of receiving is exported to described single-chip microcomputer processing unit 60 by described analog-digital converter 50, described single-chip microcomputer processing unit 60 exports to described USB-TTL change-over circuit 91 after the data signal received being processed, exported to the computer 1 of remote monitoring center by described second connector 92 after the data signal received is converted to usb signal by described USB-TTL change-over circuit 91, monitor to make the monitor staff of described remote monitoring center by described computer 1 pair of drilling tool and control.
Described compound high speed acquisition and transmission system 100 also comprise current acquisition unit 30, voltage conversion unit 93 and an electronic switch (be P-channel field-effect transistor (PEFT) pipe Q2 in the present embodiment, the first to the 3rd end of described electronic switch distinguishes the grid of corresponding described FET Q2, drain electrode and source electrode) that are arranged on described shell 110 inside.The input 1 of described current acquisition unit 30 connects described first connector 10, the output 2 of described current acquisition unit 30 connects the second input 2 of described low pass filter 40, the voltage end 3 of described current acquisition unit 30 connects the output of described voltage conversion circuit 93, the input of described voltage conversion circuit 93 connects the source electrode of described FET Q2, the grid of described FET Q2 connects the second control end 3 of described single-chip microcomputer processing unit 60, and the drain electrode of described FET Q2 connects second output 3 of described battery pack B1.
When described first connector 10 connects described current mode pressure sensor 31, second control end 3 of described single-chip microcomputer processing unit 60 export the second control signal (as a low level signal) to as described in the grid of FET Q2, described FET Q2 conducting, described voltage conversion circuit 93 exports to the voltage end 3 of described current acquisition unit 30 by described FET Q2 from described battery pack B1 receiver voltage after being changed, described current acquisition unit 30 is started working, described low pass filter 40 is exported to after the current signal received by described first connector 10 is converted to voltage signal by the input 1 of described current acquisition unit 30, filtered voltage signal is exported to described analog-digital converter 50 after carrying out filtering (i.e. filtering interference signals) to the voltage signal received by described low pass filter 40, being converted to after data signal through filtered voltage signal of receiving is exported to described single-chip microcomputer processing unit 60 by described analog-digital converter 50, described single-chip microcomputer processing unit 60 exports to described USB-TTL change-over circuit 91 after the data signal received being processed, exported to the computer 1 at remote monitoring center by described second connector 92 after the data signal received is converted to usb signal by described USB-TTL change-over circuit 91, monitor to make the monitor staff of described remote monitoring center by described computer 1 pair of drilling tool and control.
In the present embodiment, described compound high speed acquisition and transmission system 100 also carry out data transmission by wireless mode, and described compound high speed acquisition and transmission system 100 also comprise the 3rd connector 90 that a wireless radio frequency circuit 80 and being arranged on described shell 110 inside is arranged on the side 101 of described shell 110.The first end of described wireless radio frequency circuit 80 connects the input/output terminal 5 of described single-chip microcomputer processing unit 60, and the second end of described wireless radio frequency circuit 80 connects described 3rd connector 90.In the present embodiment, described 3rd connector 90 is a wireless radio frequency antenna connector, for connecting a radio-frequency antenna.
Please continue to refer to Fig. 3, when described compound high speed acquisition and transmission system 100 wirelessly carry out data transmit time, need to arrange two described compound high speed acquisition and transmission system 100, i.e. the first compound high speed acquisition and transmission system 100 and the second compound high speed acquisition and transmission system 100 simultaneously.First connector 10 of described first compound high speed acquisition and transmission system 100 is for being connected voltage-type pressure sensor 21 or a current mode pressure sensor 31, second connector 92 sky of described first compound high speed acquisition and transmission system 100 connects, first connector 10 sky of described second compound high speed acquisition and transmission system 100 connects, and the second connector 92 of described second compound high speed acquisition and transmission system 100 is connected the computer 1 of described remote monitoring center by a USB cable.Data signal after processing is launched by described first compound high speed acquisition and the wireless radio frequency circuit 80 of transmission system 100 and the 3rd connector 90 of described first compound high speed acquisition and transmission system 100 by the single-chip microcomputer processing unit 60 of described first compound high speed acquisition and transmission system 100.The single-chip microcomputer processing unit 60 of described second compound high speed acquisition and transmission system 100 receives by described second compound high speed acquisition and the 3rd connector 90 of transmission system 100 and the wireless radio frequency circuit 80 of described second compound high speed acquisition and transmission system 100 wireless signal that described first compound high speed acquisition and transmission system 100 launch and exports to the USB-TTL change-over circuit 91 of described second compound high speed acquisition and transmission system after being processed, exported to the computer 1 at remote monitoring center by the second connector 92 of described second compound high speed acquisition and transmission system 100 after the USB-TTL change-over circuit 91 of described second compound high speed acquisition and transmission system 100 is converted into usb signal, monitor to make the monitor staff of described remote monitoring center by described computer 1 pair of drilling tool and control.
Described compound high speed acquisition and transmission system 100 also comprise one and are arranged on waterproof indicator light 94 on described shell 110 side 101, described waterproof indicator light 94 is a light emitting diode, for being connected with described battery pack B1, when the electricity of described battery pack B1 is not enough, the luminescence of described waterproof indicator light 94 is to remind user to described battery pack B1 charging or to change battery.
Described compound high speed acquisition and transmission system 100 can gather voltage signal or current signal and after the voltage collected or current signal are processed by wired or wireless way for transmitting to the computer 1 at remote monitoring center, thus make the monitor staff of described remote monitoring center monitor by described computer 1 pair of drilling tool and control.Described compound high speed acquisition and transmission system 100 transmitted data rates is high, reliability is high and antijamming capability is strong.
Claims (10)
1. a compound high speed acquisition and transmission system, comprise a shell, be arranged on one first connector of described enclosure, one voltage acquisition unit, one low pass filter, one analog-digital converter, one single-chip microcomputer processing unit, one battery management circuit, one USB-TTL change-over circuit, one second connector, one battery pack, one press button and one first electronic switch, the input of described battery management circuit connects the first output of described battery pack through described press button, the output of described battery management circuit connects the voltage end of described single-chip microcomputer processing unit, described low pass filter, described analog-digital converter, described USB-TTL change-over circuit, described wireless radio frequency circuit, when described press button is pressed, described battery pack is by the voltage end of described battery management circuit to described single-chip microcomputer processing unit, described low pass filter, described analog-digital converter, described USB-TTL change-over circuit, described wireless radio frequency circuit is powered, the input of described voltage acquisition unit connects described first connector, the output of described voltage acquisition unit connects the first input end of described low pass filter, the output of described low pass filter connects the input of described analog-digital converter, the output of described analog-digital converter connects the input of described single-chip microcomputer processing unit, first control end of described single-chip microcomputer processing unit connects the first end of described first electronic switch, second end of described first electronic switch connects the second output of described battery pack, the voltage end of voltage acquisition unit described in the three-terminal link of described first electronic switch, the output of described single-chip microcomputer processing unit connects the input of described USB-TTL change-over circuit, the output of described USB-TTL change-over circuit connects described second connector, when described first connector connects a voltage-type pressure sensor, first control end of described single-chip microcomputer processing unit exports the first control signal to the first end of described first electronic switch, second end of described first electronic switch is communicated with the 3rd end, the voltage end of described voltage acquisition unit by described first electronic switch from described battery pack receiver voltage, the voltage signal received from described voltage-type pressure sensor by described first connector is exported to described low pass filter by the input of described voltage acquisition unit, filtered voltage signal is exported to described analog-digital converter after carrying out filtering to the voltage signal received by described low pass filter, being converted to after data signal through filtered voltage signal of receiving is exported to described single-chip microcomputer processing unit by described analog-digital converter, described single-chip microcomputer processing unit exports to described USB-TTL change-over circuit after the data signal received being processed, exported to the computer of remote monitoring center by described second connector after the data signal received is converted to usb signal by described USB-TTL change-over circuit.
2. compound high speed acquisition as claimed in claim 1 and transmission system, is characterized in that: described shell is a blast shield metal shell.
3. compound high speed acquisition as claimed in claim 1 and transmission system, is characterized in that: described first electronic switch is a P-channel field-effect transistor (PEFT) pipe, and the first to the 3rd end of described electronic switch distinguishes the grid of corresponding described FET, drain electrode and source electrode.
4. compound high speed acquisition as claimed in claim 2 and transmission system, is characterized in that: described first connector is Lemo5 core socket, is arranged on voltage-type pressure sensor on hydraulic fill pipeline or a current mode pressure sensor for connecting one; Described second connector is a USB connector, for connecting a computer at remote monitoring center, described low pass filter is that 2 passages 6 are situated between low pass filter, described analog-digital converter is 24 analog-digital converters, described battery pack is made up of 6 joint chargeable lithium cells, described first connector is arranged on the first side of described shell, and described press button and described second connector are arranged on second side of relatively described first side of described shell.
5. compound high speed acquisition as claimed in claim 2 and transmission system, it is characterized in that: described compound high speed acquisition and transmission system also comprise the current acquisition unit being arranged on described enclosure, one voltage conversion unit and one second electronic switch, the input of described current acquisition unit connects described first connector, the output of described current acquisition unit connects the second input of described low pass filter, the voltage end of described current acquisition unit connects the output of described voltage conversion circuit, the input of described voltage conversion circuit connects the 3rd end of described second electronic switch, the first end of described second electronic switch connects the second control end of described single-chip microcomputer processing unit, second end of described second electronic switch connects the second output of described battery pack, when described first connector connects a current mode pressure sensor, second control end of described single-chip microcomputer processing unit exports the second control signal to the first end of described second electronic switch, second end of described second electronic switch is communicated with the 3rd end, described voltage conversion circuit exports to the voltage end of described current acquisition unit after described battery pack receiver voltage also conversion by described second electronic switch, the current signal received by described first connector is exported to described low pass filter by the input of described current acquisition unit, filtered current signal is exported to described analog-digital converter after carrying out filtering to the current signal received by described low pass filter, being converted to after data signal through filtered current signal of receiving is exported to described single-chip microcomputer processing unit by described analog-digital converter, described single-chip microcomputer processing unit exports to described USB-TTL change-over circuit after the data signal received being processed, exported to the computer at remote monitoring center by described second connector after the data signal received is converted to usb signal by described USB-TTL change-over circuit.
6. compound high speed acquisition as claimed in claim 5 and transmission system, it is characterized in that: described second electronic switch is a P-channel field-effect transistor (PEFT) pipe, the first to the 3rd end of described second electronic switch distinguishes the grid of corresponding described FET, drain electrode and source electrode.
7. compound high speed acquisition as claimed in claim 5 and transmission system, it is characterized in that: described compound high speed acquisition and transmission system also comprise the 3rd connector that a wireless radio frequency circuit and being arranged on described enclosure is arranged on the first side of described shell, the first end of described wireless radio frequency circuit connects the input/output terminal of described single-chip microcomputer processing unit, second end of described wireless radio frequency circuit connects described 3rd connector, when described compound high speed acquisition and transmission system wirelessly carry out data transmit time, need to arrange the first compound high speed acquisition and transmission system and the second compound high speed acquisition and transmission system simultaneously, first connector of described first compound high speed acquisition and transmission system is for being connected a voltage-type pressure sensor or a current mode pressure sensor, second connector sky of described first compound high speed acquisition and transmission system connects, first connector sky of described second compound high speed acquisition and transmission system connects, described second compound high speed acquisition is connected the computer of far-end control centre with the second connector of transmission system, data signal after processing is launched by described first compound high speed acquisition and the wireless radio frequency circuit of transmission system and the 3rd connector of described first compound high speed acquisition and transmission system by the single-chip microcomputer processing unit of described first compound high speed acquisition and transmission system, the single-chip microcomputer processing unit of described second compound high speed acquisition and transmission system receives by described second compound high speed acquisition and the 3rd connector of transmission system and the wireless radio frequency circuit of described second compound high speed acquisition and transmission system wireless signal that described first compound high speed acquisition and transmission system launch and exports to the USB-TTL change-over circuit of described second compound high speed acquisition and transmission system after processing, exported to the computer at remote monitoring center by the second connector of described second compound high speed acquisition and transmission system after the USB-TTL change-over circuit of described second compound high speed acquisition and transmission system is converted into usb signal.
8. compound high speed acquisition as claimed in claim 7 and transmission system, is characterized in that: described 3rd connector is a wireless radio frequency antenna connector.
9. compound high speed acquisition as claimed in claim 2 and transmission system, it is characterized in that: described compound high speed acquisition and transmission system also comprise one and be arranged on waterproof indicator light on the first side of described shell, described waterproof indicator light is connected with described battery pack, is used to indicate described battery electric quantity not enough.
10. compound high speed acquisition as claimed in claim 9 and transmission system, is characterized in that: described waterproof indicator light is a light emitting diode.
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| CN201410469384.1A CN104675389B (en) | 2014-09-15 | 2014-09-15 | Compound high speed acquisition and Transmission system |
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| CN201410469384.1A CN104675389B (en) | 2014-09-15 | 2014-09-15 | Compound high speed acquisition and Transmission system |
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| CN104675389A true CN104675389A (en) | 2015-06-03 |
| CN104675389B CN104675389B (en) | 2017-09-29 |
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Cited By (1)
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| CN107104493A (en) * | 2016-08-31 | 2017-08-29 | 威盛电子股份有限公司 | Charger and power transmission control chip and charging method thereof |
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| CN107104493B (en) * | 2016-08-31 | 2019-05-31 | 威盛电子股份有限公司 | Charger and power transmission control chip and charging method thereof |
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| CN104675389B (en) | 2017-09-29 |
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