CN106225825A - A kind of wireless sensor system - Google Patents
A kind of wireless sensor system Download PDFInfo
- Publication number
- CN106225825A CN106225825A CN201610507256.0A CN201610507256A CN106225825A CN 106225825 A CN106225825 A CN 106225825A CN 201610507256 A CN201610507256 A CN 201610507256A CN 106225825 A CN106225825 A CN 106225825A
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- China
- Prior art keywords
- module
- main control
- control module
- wireless sensor
- sensor system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/06—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for operation by a null method
- G01D3/063—Comparing the measuring value with a reference value which periodically or incidentally scans the measuring range
Abstract
The invention discloses a kind of wireless sensor system, including sensor, signal conditioner, mu balanced circuit, A/D converter, main control module, memory module, communication interface, host computer, power module and zeroing module；Described sensor, signal conditioner, mu balanced circuit, A/D converter, main control module are sequentially connected with, and described main control module is connected with memory module, power module and zeroing module respectively, and described main control module is connected with host computer by communication interface.The present invention can realize host computer to the Real-time Collection of data and process, and has that certainty of measurement is high, capacity of resisting disturbance is strong, transmission range length, the feature of convenient zeroing, is suitable for popularization and application.
Description
Technical field
The present invention relates to sensor technical field, specifically, relate to a kind of wireless sensor system.
Background technology
Sensor (English name: transducer/sensor) is a kind of detection device, can experience measured letter
Breath, and the information that can will experience, be for conversion into the information output of the signal of telecommunication or other desired forms, according to certain rules to meet
The transmission of information, process, store, show, record and the requirement such as control.The feature of sensor includes: miniaturization, digitized, intelligence
Energyization, multifunction, systematization, networking.It is the primary link realizing automatically detecting and automatically controlling.The existence of sensor
And development, allow object have the sense organ such as sense of touch, taste and smell, allow object slowly become to have lived.Basic generally according to it
Perceptive function is divided into temperature-sensitive element, light-sensitive element, gas sensor, force sensing element, magneto sensor, dew cell, acoustic sensor, puts
The ten big classes such as radiation sensor, color sensor and the quick element of taste.Sensor penetrates into such as that commercial production, universe are opened already
Send out, neck that marine exploration, environmental conservation, resource investigation, medical diagnosis, biological engineering, even historical relic's protection etc. are the most general
Territory.
Along with the development of sensor technology, certainty of measurement, data transmission distance and information to sensor in application process
Disposal ability is had higher requirement.General wireless sensor device is mainly with the in-plant object less than tens meters
As measuring object, when ambient temperature, supply voltage change in rated range, certainty of measurement can be affected, cause it anti-dry
Disturb ability；Traditional machine zero method is to increase a potentiometer in circuit, utilizes change partial pressure value to obtain method and carries out
Zeroing, this adjusting zero method governing speed is very slow, and accuracy rate also ratio is relatively low, it addition, do not use communication protocol on sensor, leads
Causing it cannot directly and host computer communication.Sensor of the prior art exists that transmission range is short, certainty of measurement is low, anti-interference energy
Power is poor, zeroing is difficult, measuring point cannot directly and the shortcoming such as host computer communication.
Summary of the invention
It is an object of the invention to the defect overcoming above-mentioned technology to exist, it is provided that a kind of wireless sensor system, Ke Yishi
Existing host computer is to the Real-time Collection of data and process, and has that certainty of measurement is high, capacity of resisting disturbance is strong, transmission range length, convenience
The feature of zeroing, is suitable for popularization and application.
Its concrete technical scheme is:
A kind of wireless sensor system, including sensor, signal conditioner, mu balanced circuit, A/D converter, master control mould
Block, memory module, communication interface, host computer, power module and zeroing module；Described sensor, signal conditioner, voltage stabilizing electricity
Road, A/D converter, main control module are sequentially connected with, described main control module respectively with memory module, power module and zeroing module
Connecting, described main control module is connected with host computer by communication interface；
Described signal conditioner is for nursing one's health the signal of sensor output and amplify；
Described mu balanced circuit is used for ensureing to keep output voltage constant；
Described A/D converter is used for converting analog signals into digital signal；
Described memory module is for the storage of data；
Described zeroing module is for being set to reference zero by input value；
Described power module provides power supply for system.
Further, described mu balanced circuit is switching mode mu balanced circuit.
Further, described A/D converter is Wilkinson transducer.
Further, the technical specification of described signal conditioner:
Port number 2-16
Constant current-supplying electric current 4mA
Constant current-supplying voltage 24V DC
Gain: require default value customized to be 1 between 1-100 according to user
High frequency limit: require default value customized to be 30kHz between 1-100kHz according to user
Low-frequency minimum: 0.08Hz
Supply voltage: DC 24V (supporting power supply adaptor AC220V--24VDC)
Operating temperature :-10+40 DEG C
Working relative humidity :≤85%.
Preferably, described main control module chip is MC9S08SH4, MC9S08SH4MTJ, MC9S08SH4MPJ.
Preferably, described memory module uses the storage chip of FPGA technology.
Compared with prior art, beneficial effects of the present invention:
The present invention uses software adjusting zero method, utilizes the transformation result work gathering A/D converter when sensor zero inputs
For reference zero, and it is stored in a global variable, the most every time the value of A/D converter conversion and the ginseng in global variable
Examining zero point to compare, the result after i.e. can being corrected, software adjusting zero method accuracy is high, and governing speed is fast, it is adaptable to surveying
Amount fruit arranges reference zero immediately, when the temperature of external environment, supply voltage change time, do not affect its certainty of measurement,
Thus improving its capacity of resisting disturbance, present system and host computer communication use RS-485 communication protocol, it is achieved the high speed of data,
Long Distant Transmit, has outdoor communication distance up to 300m.The certainty of measurement of the present invention reaches ± 0.5dBm, the present invention can realize
Host computer is to the Real-time Collection of data and process.The present invention has that convenient zeroing, capacity of resisting disturbance be strong, transmission range length, measurement
The feature that precision is high, is suitable for popularization and application.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of wireless sensor system of the present invention.
Detailed description of the invention
With specific embodiment, technical scheme is described in more detail below in conjunction with the accompanying drawings.
With reference to Fig. 1, a kind of wireless sensor system, including sensor, signal conditioner, mu balanced circuit, analog/digital conversion
Device, main control module, memory module, communication interface, host computer, power module and zeroing module；Described sensor, signal condition
Device, mu balanced circuit, A/D converter, main control module are sequentially connected with, described main control module respectively with memory module, power module
Connecting with zeroing module, described main control module is connected with host computer by communication interface；
Described signal conditioner is for nursing one's health the signal of sensor output and amplify；
Described mu balanced circuit is used for ensureing to keep output voltage constant；
Described A/D converter is used for converting analog signals into digital signal；
Described memory module is for the storage of data；
Described zeroing module is for being set to reference zero by input value；
Described power module provides power supply for system.
Described mu balanced circuit is switching mode mu balanced circuit.
Described A/D converter is Wilkinson transducer.
The technical specification of described signal conditioner:
Port number 2-16
Constant current-supplying electric current 4mA
Constant current-supplying voltage 24V DC
Gain: require default value customized to be 1 between 1-100 according to user
High frequency limit: require default value customized to be 30kHz between 1-100kHz according to user
Low-frequency minimum: 0.08Hz
Supply voltage: DC 24V (supporting power supply adaptor AC220V--24VDC)
Operating temperature :-10+40 DEG C
Working relative humidity :≤85%.
Described main control module chip is MC9S08SH4, MC9S08SH4MTJ, MC9S08SH4MPJ.
Described memory module uses the storage chip of FPGA technology.
The present invention, in concrete application process, first initializes, data by sensor, signal conditioner, mu balanced circuit,
A/D converter then A/D converter carries out numerical value conversion, arranges reference zero by zeroing module and carries out Data correction,
Finally transfer data to host computer.
The above, the only present invention preferably detailed description of the invention, protection scope of the present invention is not limited to this, any ripe
Know those skilled in the art in the technical scope of present disclosure, the letter of the technical scheme that can become apparent to
Altered or equivalence are replaced and are each fallen within protection scope of the present invention.
Claims (6)
1. a wireless sensor system, it is characterised in that include sensor, signal conditioner, mu balanced circuit, analog/digital conversion
Device, main control module, memory module, communication interface, host computer, power module and zeroing module；Described sensor, signal condition
Device, mu balanced circuit, A/D converter, main control module are sequentially connected with, described main control module respectively with memory module, power module
Connecting with zeroing module, described main control module is connected with host computer by communication interface；
Described signal conditioner is for nursing one's health the signal of sensor output and amplify；
Described mu balanced circuit is used for ensureing to keep output voltage constant；
Described A/D converter is used for converting analog signals into digital signal；
Described memory module is for the storage of data；
Described zeroing module is for being set to reference zero by input value；
Described power module provides power supply for system.
Wireless sensor system the most according to claim 1, it is characterised in that described mu balanced circuit is switching mode voltage stabilizing electricity
Road or Intellight voltage-stabilizing circuit.
Wireless sensor system the most according to claim 1, it is characterised in that described A/D converter is Wilkinson
Transducer.
Wireless sensor system the most according to claim 1, it is characterised in that the technical specification of described signal conditioner:
Port number 2-16
Constant current-supplying electric current 4mA
Constant current-supplying voltage 24V DC
Gain: require that default value customized is 1 between 1-100 according to user
High frequency limit: require that default value customized is 30kHz between 1-100kHz according to user
Low-frequency minimum: 0.08Hz
Supply voltage: DC 24V
Operating temperature :-10+40 DEG C
Working relative humidity :≤85%.
Wireless sensor system the most according to claim 1, it is characterised in that described main control module chip is
MC9S08SH4, MC9S08SH4MTJ, MC9S08SH4MPJ.
Wireless sensor system the most according to claim 1, it is characterised in that described memory module uses FPGA technology
Storage chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610507256.0A CN106225825A (en) | 2016-06-24 | 2016-06-24 | A kind of wireless sensor system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610507256.0A CN106225825A (en) | 2016-06-24 | 2016-06-24 | A kind of wireless sensor system |
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| CN106225825A true CN106225825A (en) | 2016-12-14 |
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| CN201610507256.0A Pending CN106225825A (en) | 2016-06-24 | 2016-06-24 | A kind of wireless sensor system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681210A (en) * | 2016-12-29 | 2017-05-17 | 重庆奥海辉龙大数据有限公司 | Integrated intelligent sensor system and data collection method |
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| CN201993167U (en) * | 2010-11-22 | 2011-09-28 | 柳松 | Wireless vibration sensing device |
| CN102749864A (en) * | 2012-07-16 | 2012-10-24 | 中交公路规划设计院有限公司 | Bridge acceleration signal conditioner |
| CN102937459A (en) * | 2012-11-06 | 2013-02-20 | 昆山北极光电子科技有限公司 | State detection system for rotating machinery |
| CN105469583A (en) * | 2016-02-06 | 2016-04-06 | 武汉大学 | Self-powered multivariate distributed online monitoring system and method based on 3G/GSM network |
-
2016
- 2016-06-24 CN CN201610507256.0A patent/CN106225825A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201993167U (en) * | 2010-11-22 | 2011-09-28 | 柳松 | Wireless vibration sensing device |
| CN102749864A (en) * | 2012-07-16 | 2012-10-24 | 中交公路规划设计院有限公司 | Bridge acceleration signal conditioner |
| CN102937459A (en) * | 2012-11-06 | 2013-02-20 | 昆山北极光电子科技有限公司 | State detection system for rotating machinery |
| CN105469583A (en) * | 2016-02-06 | 2016-04-06 | 武汉大学 | Self-powered multivariate distributed online monitoring system and method based on 3G/GSM network |
Non-Patent Citations (3)
| Title |
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| 佚名: "信号调理器（http://www.baike.com/wikdoc/sp/qr/history/compare.do?his=1-4000000003816257&his=8-4000000012845864）", 《互动百科》 * |
| 王艳春等: "基于MC9S08SH4和AD7705的智能传感器系统设计", 《电子技术应用》 * |
| 罗少轩等: "MC9S08QG8在智能力敏传感器系统中的应用", 《自动化与仪表》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681210A (en) * | 2016-12-29 | 2017-05-17 | 重庆奥海辉龙大数据有限公司 | Integrated intelligent sensor system and data collection method |
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Application publication date: 20161214 |