CN103426286B - Flow collecting device based on wireless data transmission - Google Patents
Flow collecting device based on wireless data transmission Download PDFInfo
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- CN103426286B CN103426286B CN201310388394.8A CN201310388394A CN103426286B CN 103426286 B CN103426286 B CN 103426286B CN 201310388394 A CN201310388394 A CN 201310388394A CN 103426286 B CN103426286 B CN 103426286B
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Abstract
The invention provides a signal collecting device based on wireless data transmission, and belongs to the technical field of flow collecting. The device comprises a power module, a flow sensor, a high-precision AD collecting module, an emitting end MCU micro controller, a wireless transmitting module, a transmitting end slip ring, a receiving end slip ring, a wireless receiving module, a receiving end MCU micro controller, and a CAN communication module. The transmitting end slip ring and the receiving end slip ring are connected together. The flow sensor, the high-precision AD collecting module, the transmitting end MCU micro controller and the wireless transmitting module are installed on the transmitting end slip ring. The wireless receiving module, the receiving end MCU micro controller and the CAN communication module are installed on the receiving end slip ring. The collecting module directly obtains a signal value from the sensor and sends out the signal value from the wireless transmitting module, the wireless receiving module at the other end provides received signal data information and the like to the MCU controller, and ultimately the MCU controller sends signals to a control and display end so that the signals can be processed, controlled and displayed.
Description
Technical field
The invention belongs to flow collection technical field, and in particular to a kind of flow collection based on wireless data transmission technology
Device.
Background technology
When drillng operation is carried out, staff's monitor in real time down-hole state on well, including equipment work are generally required
State, subsurface environment information etc..This is accomplished by constantly gathering down-hole information by various sensors, then transmits via signalling channel
On Hui Jing.It is general to be connected by the way of transmission [1] using slip ring in signalling channel, the slip ring that signal passes through rotating contact（A,B）
Transmission.Because the signal of most of sensors output is all light current, so when signal is transmitted by slip ring, the contact electricity of slip ring
Impact of the resistance to signal be can not ignore, and it substantially reduces the signal accuracy of collection, and collection is resulted even in sometimes
Signal completely offsets from actual value, so cannot ensure to collect correct signal numerical value on well at all.
The content of the invention
In view of this, present invention is primarily targeted at providing a kind of signal pickup assembly based on Wireless Data Transmission.
Acquisition module directly obtains signal value from sensor, then is sent by wireless transmitter module, the wireless receiving module of the other end
It is supplied to MCU controllers, last MCU controllers to send signal to control display end signal data information for receiving etc. again
Carry out processing control and display.
To reach above-mentioned purpose, the technical scheme is that what is be achieved in that：
A kind of signal pickup assembly based on Wireless Data Transmission, by power module, flow sensor, high-precision AD collection
Module, transmitting terminal MCU microcontrollers, wireless transmitter module, transmitting terminal slip ring, receiving terminal slip ring, wireless receiving module, receiving terminal
MCU microcontrollers and CAN are constituted, wherein：
Transmitting terminal slip ring and receiving terminal slip ring link together；Flow sensor, high-precision AD acquisition module, transmitting terminal
MCU microcontrollers and wireless transmitter module are arranged on transmitting terminal slip ring；Wireless receiving module, receiving terminal MCU microcontrollers and
CAN is arranged on receiving terminal slip ring；
Described power module adopts AMS1117 power supply chips, and other modules for harvester provide work electricity
, there are different power supply chips in source on power module, produce needed for modules normal work through the conversion of power supply chip
3.3V DC voltage；
Described flow sensor adopts BF350 type resistance strain plates, for the numerical value of fluid flow to be converted into into electricity
Signal；
The high-precision AD acquisition module adopts AD7799 high-precision AD acquisition chips, is directly connected with flow sensor
Connect.The signal that flow sensor is given is reached after high-precision AD acquisition module, and high-precision AD acquisition module is responsible for reception
Electric signal is converted into digital quantity signal, and using SPI communication mode MCU microcontrollers are sent to, used here as high-precision AD collection
The purpose of chip is that it can recognize that the faint change of flow sensor signal, improves the precision of gathered data；
Described transmitting terminal and receiving terminal MCU microcontrollers adopts the STM32103VE single-chip microcomputers of ST Microelectronics,
It is the core of whole signal pickup assembly.In signal acquisition terminal, transmitting terminal MCU microcontrollers are responsible for receiving by high-precision AD collection
The digital quantity signal that module sends, and the relation demarcated by gathering signal value and flow value calculates actual flow value, so
Afterwards flow number is sent by the communication with wireless transmitter module；In signal receiving end, receiving terminal MCU microcontrollers will
The flow number received from wireless receiving module is converted into the data needed for CAN communication, then by the CAN of periphery
Being sent to control display end carries out processing control and display；
Described CAN adopts A82C250 chips.
The wireless transmission and receiver module adopt 24L01 type wireless communication modules, and it is a Monolithic RF transceiver
Part, works in 2.4GHz～2.5GHz ISM bands；Our design includes two wireless communication modules, a responsible transmission
The data on flows for collecting, i.e. wireless transmitter module；Another is responsible for receiving data on flows, i.e. wireless receiving module, and they divide
It is not connected with the transmitting terminal or receiving terminal MCU microcontrollers of oneself one end.
It is provided by the present invention that advantages below is had based on the flow harvester being wirelessly transferred：
The design philosophy of the present invention is primarily directed to interference of the slip ring to signals collecting during flow collection, so the device can
To be effectively prevented from the problems referred to above, certainty of measurement is improved, make collection result accurately credible；Be not merely to flow collection, other
The collection of signal can also use the device, and effect is equally good.
Description of the drawings
Fig. 1 is the flow harvester structural representation of the present invention；
Specific embodiment
The method of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 show the structural representation of the signal pickup assembly of the present invention, and the signal pickup assembly includes power module
Two, high-precision AD acquisition module one, MCU micro controller modules two, wireless communication module two, CAN one
Individual, two, slip ring of contact.The connected mode of each module such as Fig. 1 is directly connected using wire, and is fixed on two panels slip ring.
As seen from Figure 1：Two power modules both are from same power supply, and power supply is powered in the power module to right side
Meanwhile, slip ring B is also accessed, so pass through slip ring A and transmit electrical power to the power module in left side, other moulds with the contact of slip ring B
The power supply of block both is from the two power modules, and so device just can be with normal work；
Described slip ring inner ring is copper material, outside 12V can be transmitted in the course of the work and is powered, by 2 slip rings
On power supply chip realize the power supply of modules.The flow sensor is directly connected with high-precision AD acquisition module, and AD is adopted
Collection module can accurately obtain the signal that flow sensor is provided, and flow signal is converted into into digital quantity, while slip ring A left sides
Each operational module all controlled by a MCU micro controller module simultaneously, it is logical between microcontroller and AD acquisition modules
Crossing SPI communication carries out data interaction, and microcontroller constantly asks for flow sensor signal value to AD acquisition modules, and then AD is adopted
The flow value for collecting ceaselessly is sent to microcontroller by collection module；Meanwhile, microcontroller is receiving AD acquisition modules
After the data sent, at once the data for receiving are transmitted to into wireless transmitter module by another road SPI communication, in microcontroller
Flow signal is launched under the control of device；
As shown in figure 1, in normal work, slip ring A and slip ring B contact, so two radio communication molds
The distance between block is close；After above-mentioned wireless transmitter module sends out flow signal, the wireless receiving of slip ring B sides
Module can quickly and accurately receive wireless signal, and by SPI communication the flow signal for receiving is sent to into cunning immediately
The MCU microcontrollers of ring B sides, similar with slip ring A sides, the modules on right side are also all by a MCU microcontrollers institute
Control；Equally, after the flow signal that wireless module is sended over is received, microcontroller is logical according to what is determined immediately
Letter agreement, by flow signal numerical value CAN message is converted into, then is sent to flow signal numerical value by CAN communication total on well
The external equipments such as controller.
More than description be single flow signal acquisition flow process, described each part uses nothing except 2 wireless modules
Line communication is outer, and other are all directly connected to using wire.Above flow process is repeated continuously in the application, is achieved that monitor in real time stream
The purpose of amount information.
Being more than flow collection signal in fact can be using the present invention, and other any faint analog signalses collections all may be used
So that using the present invention, effect is the same.
All simple conversion made according to the claims in the present invention and description, should all belong to the guarantor of present invention covering
Shield scope.
[1] Liu Xinping, Fang Jun, Jin Youhai.Well logging data transmission technology application present situation and prospect：China, 1004-
1338(2008)03-0249-05.2008-06。
Claims (7)
1. a kind of signal pickup assembly based on Wireless Data Transmission, it is characterised in that：By two power modules, flow sensings
It is device, high-precision AD acquisition module, transmitting terminal MCU microcontrollers, wireless transmitter module, transmitting terminal slip ring, receiving terminal slip ring, wireless
Receiver module, receiving terminal MCU microcontrollers and CAN composition, transmitting terminal slip ring and receiving terminal slip ring link together；
Flow sensor, high-precision AD acquisition module, transmitting terminal MCU microcontrollers and wireless transmitter module are arranged on transmitting terminal slip ring
On；Wireless receiving module, receiving terminal MCU microcontrollers and CAN are arranged on receiving terminal slip ring；To be wireless receiving
The power module that module, receiving terminal MCU controllers and CAN are powered is labeled as the first power module, will be high accuracy
The power module that AD acquisition modules, transmitting terminal MCU controllers and wireless transmitter module are powered is labeled as second source module, power supply
To second source module for power supply, and power supply transmits electrical power to the first power supply by receiving terminal slip ring with the contact of transmitting terminal slip ring
Module, described flow sensor is BF350 type resistance strain plates, for the numerical value of fluid flow to be converted into into electric signal,
The high-precision AD acquisition module adopts AD7799 high-precision AD acquisition chips；The signal that flow sensor is given reaches high accuracy
After AD acquisition modules, high-precision AD acquisition module is responsible for for the electric signal of reception being converted into digital quantity signal, using SPI communication
Mode is sent to MCU microcontrollers.
2. a kind of signal pickup assembly based on Wireless Data Transmission as claimed in claim 1, it is characterised in that：Described electricity
Source module adopts AMS1117 power supply chips, other modules for harvester to provide working power.
3. a kind of signal pickup assembly based on Wireless Data Transmission as claimed in claim 1, it is characterised in that：Described sends out
Penetrate the STM32103VE single-chip microcomputers of end MCU microcontrollers and receiving terminal MCU microcontrollers using ST Microelectronics.
4. a kind of signal pickup assembly based on Wireless Data Transmission as claimed in claim 1, it is characterised in that：Transmitting terminal
MCU microcontrollers are responsible for receiving the digital quantity signal sent by high-precision AD acquisition module, and by gathering signal value and flow
The relation that value is directly proportional calculates actual flow value, is then sent out flow number by the communication with wireless transmitter module
Go；The flow number received from wireless receiving module is converted into receiving terminal MCU microcontrollers the data needed for CAN communication,
Being sent to control display end by the CAN of periphery again carries out processing control and display.
5. a kind of signal pickup assembly based on Wireless Data Transmission as claimed in claim 1, it is characterised in that：CAN communication
Module adopts A82C250 chips.
6. a kind of signal pickup assembly based on Wireless Data Transmission as claimed in claim 1, it is characterised in that：It is described wireless
Transmitter module and wireless receiving module adopt 24L01 type wireless communication modules.
7. a kind of signal pickup assembly based on Wireless Data Transmission as claimed in claim 1, it is characterised in that：It is described wireless
Transmitter module and wireless receiving module adopt NRF24L01 type wireless communication modules, work in 2.4GHz～2.5GHz ISM frequencies
Section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388394.8A CN103426286B (en) | 2013-08-31 | 2013-08-31 | Flow collecting device based on wireless data transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388394.8A CN103426286B (en) | 2013-08-31 | 2013-08-31 | Flow collecting device based on wireless data transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103426286A CN103426286A (en) | 2013-12-04 |
| CN103426286B true CN103426286B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310388394.8A Expired - Fee Related CN103426286B (en) | 2013-08-31 | 2013-08-31 | Flow collecting device based on wireless data transmission |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242064A (en) * | 2015-11-02 | 2016-01-13 | 中国水利水电科学研究院 | Wireless electromagnetic current meter |
| CN109668001A (en) * | 2019-01-02 | 2019-04-23 | 吴俊霖 | A kind of double containment filling type sleeve compensator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676874A (en) * | 2005-04-14 | 2005-10-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Well deflection and position gamma measuring nistrument during drilling |
| CN101645617A (en) * | 2009-08-26 | 2010-02-10 | 中国海洋石油总公司 | Slip ring |
| CN102394910A (en) * | 2011-09-06 | 2012-03-28 | 西南石油大学 | High-speed transmission monitoring system and method of digital well site |
| CN203433664U (en) * | 2013-08-31 | 2014-02-12 | 吉林大学 | Flow rate acquiring device based on wireless data transmission |
-
2013
- 2013-08-31 CN CN201310388394.8A patent/CN103426286B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676874A (en) * | 2005-04-14 | 2005-10-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Well deflection and position gamma measuring nistrument during drilling |
| CN101645617A (en) * | 2009-08-26 | 2010-02-10 | 中国海洋石油总公司 | Slip ring |
| CN102394910A (en) * | 2011-09-06 | 2012-03-28 | 西南石油大学 | High-speed transmission monitoring system and method of digital well site |
| CN203433664U (en) * | 2013-08-31 | 2014-02-12 | 吉林大学 | Flow rate acquiring device based on wireless data transmission |
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Granted publication date: 20170510 Termination date: 20190831 |