CN203216666U - Micro-power-consumption wireless pressure transmitter - Google Patents
Micro-power-consumption wireless pressure transmitter Download PDFInfo
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- CN203216666U CN203216666U CN2013201385500U CN201320138550U CN203216666U CN 203216666 U CN203216666 U CN 203216666U CN 2013201385500 U CN2013201385500 U CN 2013201385500U CN 201320138550 U CN201320138550 U CN 201320138550U CN 203216666 U CN203216666 U CN 203216666U
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- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000013461 design Methods 0.000 abstract description 7
- 230000003750 conditioning effect Effects 0.000 abstract 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Abstract
A micro-power-consumption wireless pressure transmitter comprises a pressure sensing module, a signal conditioning module, a main control module, a temperature sensing module, a wireless communication module, a display module and an accuracy power supply management module. The micro-power-consumption wireless pressure transmitter is characterized in that: the main control module is connected with the signal conditioning module, the temperature sensing module, the wireless communication module and the display module; the accuracy power supply management module is connected with the pressure sensing module, the signal conditioning module, the main control module and the wireless communication module; and the signal conditioning module is also connected with the pressure sensing module. Pressure data is acquired via the pressure sensing module, and is converted via the signal conditioning module; environment temperature parameters, which are acquired by the temperature sensing module, of a converted digital signal are compensated and calculated via the main control module, and the digital signal is displayed via the display module and is transmitted to an upper computer via the wireless communication module; and, in order to reduce power consumption, an external circuit adopts a micro-power-consumption design approach, and unused modules are turned off via the accuracy power supply management module, so a device is allowed in a state of low power consumption.
Description
Technical field
The utility model relates to a kind of transmitter, especially the micro power consumption wireless pressure unit.
Background technology
In the oil exploitation, the oil well production situation is reflected in the daily management by the variation of tubing pressure, often oil pressure and the casing pressure according to well head changes, and carry out the oil well production analysis in conjunction with other data, the pressure of in time and exactly measuring well head is that very important field produces environment is more abominable, require instrument accurately to measure under-35～+ 55 ℃ the condition at 0～10MPa.Pressure unit is a kind of Single Chip Microcomputer (SCM) system that is used for gaging pressure, yet the data communication of present many pressure units adopts wired mode, power supply adopts centrally connected power supply, so both has been not easy to the installing/dismounting maintenance and repair, makes troubles for again various constructions and the daily production management of oil well.Therefore, need to consider to adopt wireless communication module to carry out data transmission, measuring system adopts powered battery in order to prolong the service time of battery, and the power consumption that reduces surveying instrument is very important.
Summary of the invention
In view of above reason, the utility model provides a kind of micro power consumption wireless pressure unit.Be used for realizing the measurement quick and precisely to wellhead pressure.In system's design, in order to reduce power consumption, external circuit all adopts little power consumption design, and by accurate power management, closes no module, makes equipment be in low power consumpting state.Simultaneously, adopt little power consumption programming technique, further prolonged the serviceable life of battery.In the design, select for use TR3001 wireless transmit receiving chip as the wireless transmit receiver module, realized the wireless transmission of measurement data, by rational research and design, improved the acquisition precision of pressure data.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of micro power consumption wireless pressure unit, comprise the pressure sensing module, the signal condition module, the main control module, the temperature sensing module, wireless communication module, display module, accurate power management module, it is characterized in that, the main control module respectively with the signal condition module, the temperature sensing module, wireless communication module, display module connects, accurately power management module also respectively with the pressure sensing module, the signal condition module, the main control module, wireless communication module connects, and the signal condition module also is connected with the pressure sensing module.The pressure sensing module is with the pressure data that collects, by the signal condition module converts, digital signal after the conversion is compensated and is calculated by the environment temperature parameter of main control module with the collection of temperature sensing module again, and show by display module, by wireless communication module data are sent to host computer at last, in order to reduce power consumption, external circuit all adopts little power consumption design, and by accurate power management module, close no module, make equipment be in low power consumpting state.
The beneficial effects of the utility model are that realization has advantages of high practicability to the measurement quick and precisely of wellhead pressure.
Description of drawings
Fig. 1 is theory diagram of the present utility model.
Embodiment
In Fig. 1, a kind of micro power consumption wireless pressure unit, comprise pressure sensing module 1, signal condition module 2, main control module 3, temperature sensing module 4, wireless communication module 5, display module 6, accurate power management module 7, it is characterized in that, main control module 3 respectively with signal condition module 2, temperature sensing module 4, wireless communication module 5, display module 6 connects, accurately power management module 7 also respectively with pressure sensing module 1, signal condition module 2, main control module 3, wireless communication module 5 connects, and signal condition module 2 also is connected with pressure sensing module 1.Pressure sensing module 1 is with the pressure data that collects, by 2 conversions of signal condition module, digital signal after the conversion is compensated and is calculated by the environment temperature parameter that main control module 3 is gathered temperature sensing module 4 again, and show by display module 6, by wireless communication module 5 data are sent to host computer at last, in order to reduce power consumption, external circuit all adopts little power consumption design, and by accurate power management module 7, close no module, make equipment be in low power consumpting state.
Pressure sensing module 1 is the pressure sensor that utilizes the piezoresistive effect of semiconductor material to make, and its core is a circular silicon diaphragm of the N-type along certain crystal orientation cutting.P type resistance in that diaphragm utilizes 4 resistances of integrated circuit technology method diffusion to equate constitutes Wheatstone bridge with lead with it.Use constant current source to Wheatstone bridge power supply original state bridge balance, when the pressure of measured medium acts on the diaphragm of sensor, diaphragm will produce the micrometric displacement that is directly proportional with pressure medium, the resistance value of sensor changes simultaneously, at this moment, electric bridge is in non-equilibrium state, and output voltage is non-vanishing.The core component that signal condition module 2 is selected for use is AD694.AD694 is a kind of monolithic voltage current converter.It converts input voltage signal 0～20mA current signal of standard to, is not very regular because frequency signal produces the waveform that circuit produces, and must carry out shaping through CD4013 and handle.That main control module 3 adopts is super low power consuming single chip processor MSP430F449, low-work voltage: 1.8～3.6V; Super low-power consumption: working current is 0.28mA under the activity pattern, be 0.001mA under the standby mode, aboundresources in the sheet, accurate hardware multiplier is arranged, 2 16 bit timing devices, 18 tunnel 12 A/D analog to digital converter with the maintenance of internal reference level sampling and autoscan characteristic has LCD and drives function in the sheet, can directly drive LCD and show, drive hop count and can reach 160 sections.Temperature sensing module 4 uses the DS18B20 temperature sensor to read the environment temperature parameter, offers signal single-chip microcomputer MSP430F449, as the foundation of software temperature compensation.The TR3001 wireless transmit receiving chip that wireless communication module 5 adopts, it is monolithic short-distance wireless transceiver chip, frequency of operation is 315MHz, integrated circuit such as high-frequency emission, high frequency reception, OOK/ASK modulation and demodulation, pulse producer, AGC in the chip of 20 pin, its emission mode working current is 12mA.That display module 6 adopts is LCM128645ZK, and this module can show Chinese character and figure, built-in 8192 Chinese characters (16 * 16 dot matrix), 128 characters (8 * 16 dot matrix).Accurately power management module 7 adopts the power management module LTC3548 of double-voltage electric power, LTC3548 is binary channels synchronous buck type DC/DC voltage stabilizer, the work input voltage range of this device is 2.5 ~ 5.5V, and have the fixed switching frequency of 2.25MHz, its output can be in 0.6～5V scope independent regulation.2 built-in switch have very high efficient under the maximum output current condition, and the internal compensation function has farthest reduced number and the board area of outer member.
Claims (1)
1. micro power consumption wireless pressure unit, comprise pressure sensing module (1), signal condition module (2), main control module (3), temperature sensing module (4), wireless communication module (5), display module (6), accurate power management module (7), it is characterized in that, main control module (3) respectively with signal condition module (2), temperature sensing module (4), wireless communication module (5), display module (6) connects, accurately power management module (7) also respectively with pressure sensing module (1), signal condition module (2), main control module (3), wireless communication module (5) connects, and signal condition module (2) also is connected with pressure sensing module (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201385500U CN203216666U (en) | 2013-03-26 | 2013-03-26 | Micro-power-consumption wireless pressure transmitter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013201385500U CN203216666U (en) | 2013-03-26 | 2013-03-26 | Micro-power-consumption wireless pressure transmitter |
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| CN203216666U true CN203216666U (en) | 2013-09-25 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542960A (en) * | 2013-10-08 | 2014-01-29 | 上海世昕软件开发有限公司 | Pressure sensor |
| CN103871219A (en) * | 2014-03-14 | 2014-06-18 | 江苏红光仪表厂有限公司 | Voltage signal wireless transmission device |
| CN104280157A (en) * | 2014-11-07 | 2015-01-14 | 上海艾络格电子技术有限公司 | Low-power-consumption transmitter |
| CN105157913A (en) * | 2015-09-16 | 2015-12-16 | 成都众山科技有限公司 | Layered-power-supply pressure transmitter circuit |
| CN105526952A (en) * | 2014-09-28 | 2016-04-27 | 沈阳中科奥维科技股份有限公司 | Low-power wireless meter realizing device and realizing method |
| CN107976144A (en) * | 2017-12-06 | 2018-05-01 | 江苏泰斯特电子设备制造有限公司 | A kind of small power radio deformeter |
-
2013
- 2013-03-26 CN CN2013201385500U patent/CN203216666U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542960A (en) * | 2013-10-08 | 2014-01-29 | 上海世昕软件开发有限公司 | Pressure sensor |
| CN103542960B (en) * | 2013-10-08 | 2016-04-20 | 上海世昕软件开发有限公司 | Pressure Sensor |
| CN103871219A (en) * | 2014-03-14 | 2014-06-18 | 江苏红光仪表厂有限公司 | Voltage signal wireless transmission device |
| CN105526952A (en) * | 2014-09-28 | 2016-04-27 | 沈阳中科奥维科技股份有限公司 | Low-power wireless meter realizing device and realizing method |
| CN104280157A (en) * | 2014-11-07 | 2015-01-14 | 上海艾络格电子技术有限公司 | Low-power-consumption transmitter |
| CN105157913A (en) * | 2015-09-16 | 2015-12-16 | 成都众山科技有限公司 | Layered-power-supply pressure transmitter circuit |
| CN107976144A (en) * | 2017-12-06 | 2018-05-01 | 江苏泰斯特电子设备制造有限公司 | A kind of small power radio deformeter |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20140326 |