CN201421653Y - Wireless data acquisition unit - Google Patents
Wireless data acquisition unit Download PDFInfo
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- CN201421653Y CN201421653Y CN200920107740XU CN200920107740U CN201421653Y CN 201421653 Y CN201421653 Y CN 201421653Y CN 200920107740X U CN200920107740X U CN 200920107740XU CN 200920107740 U CN200920107740 U CN 200920107740U CN 201421653 Y CN201421653 Y CN 201421653Y
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Abstract
The utility model relates to a wireless data acquisition unit, which comprises a channel input module, a signal conditioning module, a data acquisition module, a data processing module, and a wirelesscommunication module connected in sequence; the channel input module comprises seven groups of analog channel signal connecting terminals, the signal conditioning module adopts quadruple independentdifferential amplifier circuits, wherein four groups of channels out of the analog channel signal connecting terminals are connected respectively with the quadruple independent differential amplifiercircuits, and the remaining three groups of channels are directly connected to the data acquisition module. The utility model has the beneficial effects that, firstly, the utility model is provided with flexible data acquisition method, thereby realizing 1/4,1/2, and complete Wheatstone bridge automatic controlling and switching data acquisition, which realizes the multi-channel differential and single-terminal data acquisition; secondly, by adopting the wireless communication and transmission for the data, on-site long wire arrangement is eliminated; thirdly, the sampling of 2 external analogsignals or one-way digital signal triggering can be realized; and fourthly, by adopting the USB, the on-line communication can be realized, and the equipment can be charged directly through the USB.
Description
Technical field
The utility model belongs to the commercial measurement field, and particularly a kind of data acquisition device, this collector are used for commercial measurements such as electric transmission pole tower, communication iron tower, bridge detection, the measurement of fuselage stress and strain, displacement measurement, torque measurement.
Background technology
In commercial measurement fields such as electric transmission pole tower, communication iron tower, bridge detection, the measurement of fuselage stress and strain, displacement measurement, torque measurements, need carry out data acquisition to the signal that produces from various sensor in the different location.Data acquisition unit in the past can only be realized data acquisition and transmission at the single kind sensor, and can not realize the real-time Data Transmission of complicated wireless network node, particularly for the high position measurement of iron tower or the measurement of specific position, survey crew is difficult to carry instrument and enters the scene and measure, if use lead that signal guidance is come out, just need the using compensation lead, brought measurement cost height, the inaccurate problem of the big measurement of error, be subjected to very large restriction in the engineering application.
Summary of the invention
The purpose of this utility model is to propose a kind of data acquisition device technical scheme, this scheme adopts module combinations that data acquisition unit is designed to have data processing and wireless receiving, emission function, data acquisition unit and survey sensor directly be connected be placed on measured point, realize that multidrop network connects, synchronous acquisition.
To achieve these goals, technical solutions of the utility model are achieved in that a kind of data acquisition device comprises passage load module, signal condition module, data acquisition module, data processing module and the wireless communication module that connects successively; Described passage load module comprises seven groups of analog channel signal terminal, described signal condition module is four tunnel differential amplifier circuits independently, described data acquisition module is an A/D converter, in seven groups of analog channel signal terminal of described passage load module, have four groups of passages to connect described four road differential amplifier circuits respectively, its excess-three group passage is connected directly to the input end of analog signal of data acquisition module A/D converter.
The beneficial effects of the utility model are:
1. have data acquisition modes flexibly, can realize 1/4,1/2 or full Wheatstone bridge control the switch data acquisition function automatically, and can realize hyperchannel difference, single-ended data acquisition;
2. data wireless communication transmission, the trouble of having exempted the long line of on-the-spot cloth, digital data transmission has improved antijamming capability;
3. can be configured to multiple different network topology expansion structure, be implemented in real-time collection, storage and the transfer function of multisensor node in different location in the same workplace;
4. can realize the sampling of 2 external analog signals or a way word signal triggering;
5. can adopt USB to realize online communication, and can directly implement charging by USB to equipment.
Below in conjunction with drawings and Examples the utility model is done a detailed description.
Description of drawings
Fig. 1 is the utility model logic diagram;
Fig. 2 is the utility model passage load module, signal condition module, a data acquisition module connection logic diagram each other;
Fig. 3 has the data processing module figure of USB interface for the utility model;
Fig. 4 is the utility model wireless communication module block diagram.
Embodiment
Embodiment:
A kind of data acquisition device embodiment, referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, described data acquisition unit comprise passage load module 1, signal condition module 2, data acquisition module 3, data processing module 4 and the wireless communication module 5 that connects successively; Described passage load module comprises seven groups of sub-1-1 of analog channel signal terminal, described signal condition module is four tunnel differential amplifier circuit 2-1 independently, described data acquisition module is an A/D converter, in seven groups of analog channel signal terminal of described passage load module as shown in Figure 2, have four groups of passages to connect described four road differential amplifier circuits respectively, its excess-three group passage is connected directly to the input end of analog signal of data acquisition module A/D converter.
The described data processing module of present embodiment is that model is the singlechip microprocessor chip of MSP430F169; Described differential amplifier circuit model is INA128; Described data acquisition module model is 16 A/D converters of eight passage low-power consumption of LTC1867; Described wireless communication module comprises a wireless telecommunications processor as shown in Figure 4, modulation delivery outlet end at the wireless telecommunications processor connects an emitting antenna 5-2 who has impedance transformation, connects a receiving antenna 5-3 who has impedance transformation at the modulation input port of wireless telecommunications processor end.
Present embodiment is connected with usb circuit 6 on the microprocessor input/output port of described data processing module.
The described four groups of channel parallels that connect four road differential amplifier circuits respectively of present embodiment go out four groups of Wheatstone bridge Wiring ports, are used for Testing of Feeble Signals.
One group in described its excess-three group passage is set to the reference voltage interface.
The described passage load module of present embodiment, signal condition module, data acquisition module, data processing module and wireless communication module and power module adopt unified electrical design standard from hanging down in higher slice is positioned over same housing.
The utility model data acquisition utensil has data acquisition modes flexibly, can realize 1/4,1/2, and full Wheatstone bridge is controlled the switch data acquisition function automatically, and can realize hyperchannel difference, single-ended data acquisition.This data acquisition device can be configured to multiple different network topology expansion structure, is implemented in real-time collection, storage and the transfer function of multisensor node in different location in the same workplace.This data acquisition utensil has automatic calibration function, but equipment such as pair of strain sensors, displacement transducer, torque measurement sensor calibrate automatically, improved the service efficiency and the accuracy of equipment greatly.This data acquisition device can integrated instrument amplifier, realizes the accurate amplification and the sampling of signal.This data acquisition device adopts accurate resistive element, realizes integrated circuit is implemented temperature compensation by the real-time collection to temperature, to measures such as offset signal software zeroings, has improved data precision, reduces the zero drift of signal.This data acquisition device adopts 16 AD of low-power consumption, and can realize to dynamic strain the data acquisition of static strain.This data acquisition device is connected directly in the data acquisition module at three groups of passages, adopts wherein one group as reference power configuration mode, and this data acquisition device can be realized external protection (overcurrent protection, the overcurrent protection electric current is set to 200mA).The simulation part of this data acquisition device can be closed automatically, but has 1-4 data acquisition channel, 8 data acquisition channel arrangement.The signal input part of this data acquisition device is directly imported for being chosen as terminal input or plug, and is convenient, flexible.This data acquisition device can adopt 2 external analog signals or way word signal triggering sampling.This data acquisition device adopts USB to realize online communication, and can directly implement charging (also can external power supply port) to equipment by USB.Have non-volatile 4M memory block in this data acquisition device microprocessor, realize the effective preservation of data in a period of time, improve the reliability and the validity of communicating by letter of data.This data acquisition device adopts digital filtering (0.5Hz resolution, 10KHz range), can realize noise control in the passband to input signal.
The multichannel Wiring port of front end simulating signal consists of: the multichannel Wiring port of simulating signal comprises two parts composition.A part is the Wheatstone bridge Wiring port, is used for Testing of Feeble Signals, and another part is general Wiring port.One group is the reference voltage interface in described its excess-three group passage, is provided by the power module unification.Two parts Wiring port has only a Wiring port job when real work, another Wiring port free time.The method makes things convenient for user flexibility configuration input end of analog signal.
Claims (6)
1. a data acquisition device comprises the passage load module, signal condition module, data acquisition module, data processing module and the wireless communication module that connect successively; It is characterized in that, described passage load module comprises seven groups of analog channel signal terminal, described signal condition module is four tunnel differential amplifier circuits independently, described data acquisition module is an A/D converter, in seven groups of analog channel signal terminal of described passage load module, have four groups of passages to connect described four road differential amplifier circuits respectively, its excess-three group passage is connected directly to the input end of analog signal of data acquisition module A/D converter.
2. a kind of data acquisition device according to claim 1 is characterized in that, data processing module is that model is the singlechip microprocessor chip of MSP430F169.
3. a kind of data acquisition device according to claim 1 is characterized in that described differential amplifier circuit model is INA128.
4. a kind of data acquisition device according to claim 1 is characterized in that, described data acquisition module model is 16 A/D converters of eight passage low-power consumption of LTC1867.
5. a kind of data acquisition device according to claim 1, it is characterized in that, described wireless communication module comprises a wireless communication process device, modulation delivery outlet end at the wireless communication process device connects an emitting antenna that has impedance transformation, connects a receiving antenna that has impedance transformation at the modulation input port of wireless communication process device end.
6. a kind of data acquisition device according to claim 1 is characterized in that, described four groups of channel parallels that connect four road differential amplifier circuits respectively go out four groups of Wheatstone bridge Wiring ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920107740XU CN201421653Y (en) | 2009-04-28 | 2009-04-28 | Wireless data acquisition unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920107740XU CN201421653Y (en) | 2009-04-28 | 2009-04-28 | Wireless data acquisition unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201421653Y true CN201421653Y (en) | 2010-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200920107740XU Expired - Fee Related CN201421653Y (en) | 2009-04-28 | 2009-04-28 | Wireless data acquisition unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105265A (en) * | 2011-11-11 | 2013-05-15 | 沈阳金凯瑞科技有限公司 | On-line monitor for strain gauge load cell |
| CN103728941A (en) * | 2013-12-23 | 2014-04-16 | 平湖市紫欣自动化科技有限公司 | Material level monitoring method and equipment |
| CN108447238A (en) * | 2018-03-22 | 2018-08-24 | 江苏麦酷博信息科技有限公司 | The intelligent radio data collector and its working method that slitless connection multipoint data collects and surveys |
| CN113670304A (en) * | 2021-07-01 | 2021-11-19 | 格物感知（深圳）科技有限公司 | Data transmission equipment and method capable of acquiring multiple paths of inertia measurement units |
-
2009
- 2009-04-28 CN CN200920107740XU patent/CN201421653Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105265A (en) * | 2011-11-11 | 2013-05-15 | 沈阳金凯瑞科技有限公司 | On-line monitor for strain gauge load cell |
| CN103105265B (en) * | 2011-11-11 | 2015-04-29 | 沈阳金凯瑞科技有限公司 | On-line monitor for strain gauge load cell |
| CN103728941A (en) * | 2013-12-23 | 2014-04-16 | 平湖市紫欣自动化科技有限公司 | Material level monitoring method and equipment |
| CN108447238A (en) * | 2018-03-22 | 2018-08-24 | 江苏麦酷博信息科技有限公司 | The intelligent radio data collector and its working method that slitless connection multipoint data collects and surveys |
| CN113670304A (en) * | 2021-07-01 | 2021-11-19 | 格物感知（深圳）科技有限公司 | Data transmission equipment and method capable of acquiring multiple paths of inertia measurement units |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20180428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |