CN205205799U - Pressure sensor data acquisition unit - Google Patents
Pressure sensor data acquisition unit Download PDFInfo
- Publication number
- CN205205799U CN205205799U CN201521053295.5U CN201521053295U CN205205799U CN 205205799 U CN205205799 U CN 205205799U CN 201521053295 U CN201521053295 U CN 201521053295U CN 205205799 U CN205205799 U CN 205205799U
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- Prior art keywords
- pressure sensor
- collecting unit
- data acquisition
- acquisition unit
- sensor data
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Abstract
The utility model discloses a pressure data acquisition device, specifically speaking are pressure sensor data acquisition unit, including pore pressure cell, its characterized in that: pore pressure cell's pressure sensor is connected with acquisition unit, acquisition unit includes withstand voltage storehouse and fixes processing board and the constant current source in withstand voltage storehouse, pressure sensor is connected with processing board and constant current source through 4 core shielded cable lines, owing to adopted above -mentioned technical scheme, a pressure sensor data acquisition unit adopt automatic data acquisition mode to substitute artifical methods of measurement, data storage that the data acquisition unit can not only be gathered the sensor can control the operating time and the mode of this unit through host computer software to the SD card in in addition, acquisition unit's precision is high, stability reliably, data acquisition cellular system is full -automatic mode in addition.
Description
Technical field
The utility model relates to a kind of pressure data harvester, specifically a kind of pressure sensor data collecting unit.
Background technology
Pore pressure gauge is also often called osmotic pressure machine, sensor for pore water pressure, can be divided into differential resistance type, steel chord type, pressure resistance type and resistance-strain chip etc. by instrument type.Domestic normal employing differential resistance type or steel chord type pore pressure gauge.
Pore pressure gauge can be used to measure pore water or other fluid pressures.Measured data can evaluation of subterranean current situation and for design with detect following items: water conservancy project fabrication, basis and retaining wall, dam and dyke, side slope and open excavation, tunneling and underground engineering etc.
The object that pore pressure gauge detects is the stability of the permitted bearing capacity evaluated on ground, the order of severity of predicted link freeze injury, the size of Pit Discharge and hole wall.By the long-term observation to groundwater dynamic, the effect of the dam foundation, dam abutment Anti-seeping technology also can be checked.Pore pressure gauge, in reservoir-induced earthquake, has significant role in surface settlement and slope stability, to designing landfill earth dam, Hai Ba and dam, road etc. and having significant role.
But the data acquisition of existing pore pressure gauge major part is by manually carrying out, and image data is easily made mistakes, and wastes time and energy.
Utility model content
In order to make up above deficiency, the utility model provides a kind of pressure sensor data collecting unit of automatic data collection, to solve the problem in above-mentioned background technology.
The technical solution of the utility model is:
A kind of pressure sensor data collecting unit, comprise pore pressure gauge, it is characterized in that: the pressure sensor of described pore pressure gauge is connected with collecting unit, described collecting unit comprises withstand voltage storehouse and the disposable plates be fixed in withstand voltage storehouse and constant-current source, described pressure sensor is connected with disposable plates and constant-current source by 4 core shielded cables, described constant-current source comprises potentiometer and voltage-stabilized power supply, the input of described potentiometer is connected with voltage-stabilized power supply, the output of described potentiometer is connected with pressure sensor, described potentiometer and triode and resistance that the connection line between pressure sensor is also connected, described disposable plates comprises STM32F103RCT6 Master control chip and the analog-digital converter be attached thereto and IWDG module, described disposable plates also arranges real-time timepiece chip, described real-time timepiece chip is connected with Master control chip, RS232 communication serial interface one end is separately had to connect computer, the other end is connected with the data-interface of STM32F103RCT6 Master control chip.
As preferred technical scheme, described withstand voltage storehouse shell is the shell of POM material.
As preferred technical scheme, the stabilizator that described voltage-stabilized power supply comprises battery pack and is connected with battery pack, described stabilizator exports 5V voltage.
As preferred technical scheme, described disposable plates also arranges SD card, interaction data is delivered on SD card by described STM32F103RCT6 Master control chip.
Owing to have employed technique scheme, a kind of pressure sensor data collecting unit described in the utility model adopts automatic data collection mode to substitute manual measurement method, the data that sensor collects can not only be saved in SD card by data acquisition unit, and working time and the mode of operation of this unit is controlled by upper computer software, the precision of collecting unit is high, stability is reliable, and data acquisition unit system is fully automatic working pattern, the time point setting collection is only needed before work, without the numerical value that concern and the record pore pressure gauge in moment collect, the data collected and current time can be saved in SD card and conveniently record and check by pressure sensor data collecting unit system.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the utility model collecting unit;
Fig. 2 is the input schematic diagram of the utility model collecting unit;
Fig. 3 is the electrical block diagram of the utility model constant-current source part.
Detailed description of the invention
Embodiment one: as shown in Figure 1, a kind of pressure sensor data collecting unit described in the utility model, comprise pore pressure gauge, described pore pressure gauge adopts YY-2B type pore pressure gauge, the pressure sensor of described pore pressure gauge is connected with collecting unit, described collecting unit comprises withstand voltage storehouse and the disposable plates be fixed in withstand voltage storehouse and constant-current source, described withstand voltage storehouse shell is the shell of POM material, shell adopts novel POM material, volume is little, anticorrosive and favorable sealing property, described pressure sensor is connected with disposable plates and constant-current source by 4 core shielded cables, described constant-current source comprises potentiometer and voltage-stabilized power supply, the input of described potentiometer is connected with voltage-stabilized power supply, the output of described potentiometer is connected with pressure sensor, as shown in Figure 2, described potentiometer and triode and resistance that the connection line between pressure sensor is also connected, described disposable plates comprises STM32F103RCT6 Master control chip and the analog-digital converter be attached thereto and IWDG module, described disposable plates also arranges real-time timepiece chip, described real-time timepiece chip is connected with Master control chip, the data of analog-digital converter switching to pressure sensor are controlled by STM32F103RCT6 Master control chip, convert pressure signal to the signal of telecommunication, IWDG module energy monitoring hardware mistake ensures the normal operation of system, RS232 communication serial interface one end is separately had to connect computer, the other end is connected with the data-interface of STM32F103RCT6 Master control chip., working time and the mode of operation of this unit is controlled by upper computer software.
The stabilizator that described voltage-stabilized power supply comprises battery pack and is connected with battery pack, described stabilizator exports 5V voltage.
Described disposable plates also arranges SD card, interaction data is delivered on SD card by described STM32F103RCT6 Master control chip, without the numerical value that concern and the record pore pressure gauge in moment collect, the data collected and current time can be saved in SD card and conveniently record and check by pressure sensor data collecting unit system.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a pressure sensor data collecting unit, comprise pore pressure gauge, it is characterized in that: the pressure sensor of described pore pressure gauge is connected with collecting unit, described collecting unit comprises withstand voltage storehouse and the disposable plates be fixed in withstand voltage storehouse and constant-current source, described pressure sensor is connected with disposable plates and constant-current source by 4 core shielded cables, described constant-current source comprises potentiometer and voltage-stabilized power supply, the input of described potentiometer is connected with voltage-stabilized power supply, the output of described potentiometer is connected with pressure sensor, described potentiometer and triode and resistance that the connection line between pressure sensor is also connected, described disposable plates comprises STM32F103RCT6 Master control chip and the analog-digital converter be attached thereto and IWDG module, described disposable plates also arranges real-time timepiece chip, described real-time timepiece chip is connected with Master control chip, RS232 communication serial interface one end is separately had to connect computer, the other end is connected with the data-interface of STM32F103RCT6 Master control chip.
2. a kind of pressure sensor data collecting unit as claimed in claim 1, is characterized in that: described withstand voltage storehouse shell is the shell of POM material.
3. a kind of pressure sensor data collecting unit as claimed in claim 2, is characterized in that: the stabilizator that described voltage-stabilized power supply comprises battery pack and is connected with battery pack, and described stabilizator exports 5V voltage.
4. a kind of pressure sensor data collecting unit as claimed in claim 3, is characterized in that: described disposable plates also arranges SD card, and interaction data is delivered on SD card by described STM32F103RCT6 Master control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521053295.5U CN205205799U (en) | 2015-12-17 | 2015-12-17 | Pressure sensor data acquisition unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521053295.5U CN205205799U (en) | 2015-12-17 | 2015-12-17 | Pressure sensor data acquisition unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205205799U true CN205205799U (en) | 2016-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521053295.5U Expired - Fee Related CN205205799U (en) | 2015-12-17 | 2015-12-17 | Pressure sensor data acquisition unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205205799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI642923B (en) * | 2016-11-11 | 2018-12-01 | 國立雲林科技大學 | In-tube fluid leak detection system |
| CN110006585A (en) * | 2019-05-06 | 2019-07-12 | 上海掌门科技有限公司 | A kind of data acquisition device and method of pressure sensor |
-
2015
- 2015-12-17 CN CN201521053295.5U patent/CN205205799U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI642923B (en) * | 2016-11-11 | 2018-12-01 | 國立雲林科技大學 | In-tube fluid leak detection system |
| CN110006585A (en) * | 2019-05-06 | 2019-07-12 | 上海掌门科技有限公司 | A kind of data acquisition device and method of pressure sensor |
| CN110006585B (en) * | 2019-05-06 | 2023-10-24 | 上海掌门科技有限公司 | Data acquisition device and method of pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20161217 |