CN104634499A - Intelligent pressure transmitter - Google Patents
Intelligent pressure transmitter Download PDFInfo
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- CN104634499A CN104634499A CN201410711438.0A CN201410711438A CN104634499A CN 104634499 A CN104634499 A CN 104634499A CN 201410711438 A CN201410711438 A CN 201410711438A CN 104634499 A CN104634499 A CN 104634499A
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- pressure transmitter
- microprocessor
- intelligent pressure
- wireless communication
- communication module
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- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses an intelligent pressure transmitter, and belongs to the technical field of electronics. The intelligent pressure transmitter is characterized by comprising a pressure sensor, a temperature measuring component, a signal conditioning module, a digital-to-analog converter, a display screen, a sensor parameter storage, a microprocessor, a communication parameter storage, an information acquirer, a wireless communication module and a communication terminal; the pressure sensor and the temperature measuring component are connected with the signal conditioning module; the signal conditioning module is connected with the microprocessor by the digital-to-analog converter; the display screen is connected with the digital-to-analog converter; the sensor parameter storage, the communication parameter storage, the information acquirer and the wireless communication module are connected with the microprocessor; the communication terminal is connected with the wireless communication module. The intelligent pressure transmitter has the advantages that the microprocessor and the wireless communication module are used with each other, so that the problem of output errors of an existing transmitter can be effectively solved, and output signals are excellent in linear characteristic; the intelligent pressure transmitter is simple in structure, convenient to operate and easy to popularize.
Description
Technical field
the invention belongs to electronic technology field, particularly relate to a kind of intelligent pressure transmitter.
Background technology
Along with the continuous progress of science and technology, increasing intelligent electronic device has entered into the life of people, bring great convenience to the life of people, along with the development of electronic technology, the requirement of industrial stokehold to transmitter performance also improves day by day, sputtered film sensor utilizes ceramic dielectric to instead of the adhesive of traditional strain pressure transducer, makes it be greatly improved at aspect of performances such as stability, high temperature resistant, high output impedances.But its measured pressure value still can be subject to the external factor impacts such as temperature and produce system performance drift, if zero point drift, sensitivity drift etc. are the topmost interference volumes of sensing system.Conventional pressure sensor mainly adopts hardware to eliminate its impact, but cost is high, and adaptability is poor.
Summary of the invention
The present invention is intended to solve the problem, and provides a kind of intelligent pressure transmitter.
A kind of intelligent pressure transmitter, is characterized in that comprising pressure transducer, temperature element, Signal-regulated kinase, digital to analog converter, display screen, sensor parameters storage, microprocessor, messaging parameter storage, information acquisition, wireless communication module, communication terminal; Wherein pressure transducer is all connected with Signal-regulated kinase with temperature element; Signal-regulated kinase is connected with microprocessor by digital to analog converter; Display screen is connected with digital to analog converter; Sensor parameters stores, messaging parameter stores, information acquisition is all connected with microprocessor with wireless communication module; Communication terminal is connected with wireless communication module.
A kind of intelligent pressure transmitter of the present invention, is characterized in that described Signal-regulated kinase is provided with instrument amplifier.
A kind of intelligent pressure transmitter of the present invention, is characterized in that the gain margin of described instrument amplifier is 1-10000.
A kind of intelligent pressure transmitter of the present invention, is characterized in that the employing AD620 of described instrument amplifier.
A kind of intelligent pressure transmitter of the present invention, is characterized in that described microprocessor adopts STM32F103 microprocessor.
A kind of intelligent pressure transmitter of the present invention, is characterized in that described wireless communication module adopts ZigBee communication mode.
A kind of intelligent pressure transmitter of the present invention, by being combined of microprocessor and wireless communication module, efficiently solves the output error problem of transmitter, makes to output signal to be provided with good linear feature.Intelligent pressure transmitter structure of the present invention is simple, easy to operate, is easy to promote.
Embodiment
A kind of intelligent pressure transmitter, is characterized in that comprising pressure transducer, temperature element, Signal-regulated kinase, digital to analog converter, display screen, sensor parameters storage, microprocessor, messaging parameter storage, information acquisition, wireless communication module, communication terminal; Wherein pressure transducer is all connected with Signal-regulated kinase with temperature element; Signal-regulated kinase is connected with microprocessor by digital to analog converter; Display screen is connected with digital to analog converter; Sensor parameters stores, messaging parameter stores, information acquisition is all connected with microprocessor with wireless communication module; Communication terminal is connected with wireless communication module.
A kind of intelligent pressure transmitter of the present invention, described Signal-regulated kinase is provided with instrument amplifier.The gain margin of described instrument amplifier is 1-10000.The employing AD620 of described instrument amplifier, mainly the feeble signal that sensor exports is amplified, with the scope of satisfied output needs, this is a low-power consumption, high-precision instrument amplifier, a non-essential resistance is only needed just can gain to be set, gain margin is 1 ~ 10 000, and has the characteristic such as low maladjustment voltage and low offset drift.The zero point that a voltage follower regulates AD620 is formed with OP07.Described microprocessor adopts STM32F103 microprocessor, the compensation operation realizing signal and the control communicated.STM32F103 is the low-power consumption arm processor of a intermediate size enhancement mode, its core is with 128 KB FLASH program memory, up to the SRAM of 20 KB, processor operating voltage is 2.0 ~ 3.6 V, and with programmable voltage detecting device (PVD), minimum running current is 0.1 μ A, there are 3 kinds of low power mode of operation: sleep pattern, shutdown mode and standby mode, wherein builtin voltage pressure regulator is closed in stand-by mode, and the power supply of therefore all inside 1.8 V parts is cut off; RC oscillator and the HSE crystal oscillator of PLL, HSI are also closed, thus realize the low-power consumption of work.Microprocessor internal is integrated with 12 ADC A/D converters of 28 passages, the switching time of 1 μ s, simultaneously with 2 I2C interfaces, 2 USART interfaces, 2 SPI interfaces, 1 CAN interfaces and USB interface at full speed, facilitates the transmission of various communication data.Described wireless communication module adopts ZigBee communication mode.After the feeble signal that sensor exports is amplified by signal conditioning circuit, deliver to microprocessor after converting simulating signal to digital signal by A/D converter AD7799 and carry out a series of data processing such as nonlinear compensation, temperature compensation, eventually through wireless communication module, real-time for measurement data is sent to data center, monitors in order to managerial personnel.Intelligent pressure transmitter adopts pressure transducer and temperature sensor to measure two target parameters respectively, utilizes linear regression analysis, two output informations are carried out fusion treatment, thus improves the measuring accuracy of two target parameters.
Claims (6)
1. an intelligent pressure transmitter, is characterized in that comprising pressure transducer, temperature element, Signal-regulated kinase, digital to analog converter, display screen, sensor parameters storage, microprocessor, messaging parameter storage, information acquisition, wireless communication module, communication terminal; Wherein pressure transducer is all connected with Signal-regulated kinase with temperature element; Signal-regulated kinase is connected with microprocessor by digital to analog converter; Display screen is connected with digital to analog converter; Sensor parameters stores, messaging parameter stores, information acquisition is all connected with microprocessor with wireless communication module; Communication terminal is connected with wireless communication module.
2. a kind of intelligent pressure transmitter as claimed in claim 1, is characterized in that described Signal-regulated kinase is provided with instrument amplifier.
3. a kind of intelligent pressure transmitter as claimed in claim 2, is characterized in that the gain margin of described instrument amplifier is 1-10000.
4. a kind of intelligent pressure transmitter as claimed in claim 2 or claim 3, is characterized in that the employing AD620 of described instrument amplifier.
5. a kind of intelligent pressure transmitter as claimed in claim 1, is characterized in that described microprocessor adopts STM32F103 microprocessor.
6. a kind of intelligent pressure transmitter as claimed in claim 1, is characterized in that described wireless communication module adopts ZigBee communication mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711438.0A CN104634499A (en) | 2014-12-01 | 2014-12-01 | Intelligent pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711438.0A CN104634499A (en) | 2014-12-01 | 2014-12-01 | Intelligent pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104634499A true CN104634499A (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410711438.0A Pending CN104634499A (en) | 2014-12-01 | 2014-12-01 | Intelligent pressure transmitter |
Country Status (1)
| Country | Link |
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| CN (1) | CN104634499A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181188A (en) * | 2015-07-20 | 2015-12-23 | 湖南菲尔斯特传感器有限公司 | Intelligent pressure transmitter |
| CN105319002A (en) * | 2015-11-27 | 2016-02-10 | 上海立格仪表有限公司 | Natural ventilation pressure measuring instrument |
| CN105841876A (en) * | 2016-05-06 | 2016-08-10 | 上海燃气浦东销售有限公司 | Pressure regulator pressure automatic monitoring handheld equipment |
| CN106679861A (en) * | 2016-12-28 | 2017-05-17 | 天津汇誉丰机电科技有限公司 | Intelligent pressure transmitter |
| CN110411651A (en) * | 2019-06-18 | 2019-11-05 | 重庆布莱迪仪器仪表有限公司 | Pressure acquisition system |
| CN110595664A (en) * | 2019-08-19 | 2019-12-20 | 江苏杰克仪表有限公司 | Novel high-precision pressure transmitter |
-
2014
- 2014-12-01 CN CN201410711438.0A patent/CN104634499A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181188A (en) * | 2015-07-20 | 2015-12-23 | 湖南菲尔斯特传感器有限公司 | Intelligent pressure transmitter |
| CN105319002A (en) * | 2015-11-27 | 2016-02-10 | 上海立格仪表有限公司 | Natural ventilation pressure measuring instrument |
| CN105841876A (en) * | 2016-05-06 | 2016-08-10 | 上海燃气浦东销售有限公司 | Pressure regulator pressure automatic monitoring handheld equipment |
| CN105841876B (en) * | 2016-05-06 | 2018-09-28 | 上海燃气浦东销售有限公司 | A kind of pressure regulator automatic monitor of pressure handheld device |
| CN106679861A (en) * | 2016-12-28 | 2017-05-17 | 天津汇誉丰机电科技有限公司 | Intelligent pressure transmitter |
| CN110411651A (en) * | 2019-06-18 | 2019-11-05 | 重庆布莱迪仪器仪表有限公司 | Pressure acquisition system |
| CN110595664A (en) * | 2019-08-19 | 2019-12-20 | 江苏杰克仪表有限公司 | Novel high-precision pressure transmitter |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |