CN105157745A - Multi-sensor signal acquisition and processing device and information acquisition method - Google Patents
Multi-sensor signal acquisition and processing device and information acquisition method Download PDFInfo
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- CN105157745A CN105157745A CN201510228729.9A CN201510228729A CN105157745A CN 105157745 A CN105157745 A CN 105157745A CN 201510228729 A CN201510228729 A CN 201510228729A CN 105157745 A CN105157745 A CN 105157745A
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Abstract
Disclosed are a multi-sensor signal acquisition and processing device and an information acquisition method. Currently, a thermal resistor, a thermocouple and a humidity sensor output signals which are often very weak and at only micro-volt levels, accurate data are difficult to obtain in the presence of strong electromagnetic interference and external noises, the obtained data are low in precision, and signals are weak and therefore are difficult to transmit effectively. The multi-sensor signal acquisition and processing device comprises a metal shield shell (1). The metal shield shell is equipped internally with a PCB (2) in which an input interface (3) is mounted. The input interface is connected electrically with a power supply module (4). The power supply module is connected electrically with a decoupling capacitor (5). The decoupling capacitor is connected electrically with a differential amplifier (6). The differential amplifier is connected electrically with a sensor group (7) and a shunt capacitor (8). The shunt capacitor is connected electrically with an output interface (9). The invention is used for accurately acquiring information.
Description
technical field:
the present invention relates to a kind of multiple sensor signals acquisition processing device and information collecting method.
background technology:
current thermal resistance, thermopair and humidity sensor output signal is often very faint, only has microvolt level, be difficult to accurately obtain data under the environment having strong electromagnetism and outside noise interference, the low and weak output signal of the data high precision obtained, is difficult to effective transmission.
summary of the invention:
the object of this invention is to provide a kind of multiple sensor signals acquisition processing device and information collecting method.
above-mentioned object is realized by following technical scheme:
a kind of multiple sensor signals acquisition processing device, its composition comprises: Metal shielding shell, described Metal shielding shell is built with pcb board, described pcb board is equipped with input interface, described input interface is electrically connected with power module, and described power module is electrically connected with decoupling capacitor, and described decoupling capacitor is electrically connected with differential amplifier, described differential amplifier is electrically connected respectively with sensor group and shunt capacitance, and described shunt capacitance is electrically connected with output interface.
described multiple sensor signals acquisition processing device, described power module, described decoupling capacitor, described differential amplifier, described shunt capacitance, described output interface are all contained on described pcb board, and it is outside that described sensor group is arranged on described Metal shielding shell; Described sensor group comprises temperature sensor, humidity sensor, seal sensor, pressure transducer.
the information collecting method of described multiple sensor signals acquisition processing device, during use, described sensor group is placed on the relevant position needing the equipment carrying out information acquisition, input interface and output interface are electrically connected with supporting messaging device, after switching on power, the various information of equipment by after the collection of sensor group through being transferred to messaging device by after differential amplifier process; The decoupling capacitor be electrically connected with power module helps the electric current of circuit with stable, and the radio-frequency component be mixed with in the alternating current of high-frequency current and low-frequency current filters by shunt capacitance.
beneficial effect:
1. when the present invention uses, described sensor group is placed on the relevant position needing the equipment carrying out information acquisition, input interface and output interface are electrically connected with supporting messaging device, after switching on power, the various information of equipment by after the collection of sensor group through being transferred to messaging device by after differential amplifier process; The decoupling capacitor be electrically connected with power module helps the electric current of circuit with stable, and the radio-frequency component be mixed with in the alternating current of high-frequency current and low-frequency current filters by shunt capacitance.
present invention employs the differential amplifier circuit of restraint speckle, voltage gain is less, effectively the amplification of restraint speckle signal, so the prestage being used in amplifying circuit can obtain low-noise characteristic; When pcb board makes, input and output are directly received on circuit board, make input and output signal directly deliver to circuit board and output, shorten input and output line, cut down the number of intermediate links, vital role is served to reduction noise and good input, output signal.
present invention employs Metal shielding shell shielding, shielding external interference that can be good, and do good ground connection, have employed the interference of decoupling capacitor and shunt capacitance suppression power supply simultaneously.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present invention.
accompanying drawing 2 is circuit diagrams of power module of the present invention.
accompanying drawing 3 is circuit diagrams of differential amplifier of the present invention.
embodiment:
embodiment 1:
a kind of multiple sensor signals acquisition processing device, its composition comprises: Metal shielding shell 1, described Metal shielding shell is built with pcb board 2, input interface 3 described pcb board is equipped with, described input interface is electrically connected with power module 4, and described power module is electrically connected with decoupling capacitor 5, and described decoupling capacitor is electrically connected with differential amplifier 6, described differential amplifier is electrically connected respectively with sensor group 7 and shunt capacitance 8, and described shunt capacitance is electrically connected with output interface 9.
embodiment 2:
multiple sensor signals acquisition processing device according to embodiment 1, described power module, described decoupling capacitor, described differential amplifier, described shunt capacitance, described output interface are all contained on described pcb board, and it is outside that described sensor group is arranged on described Metal shielding shell; Described sensor group comprises temperature sensor 10, humidity sensor 11, seal sensor 12, pressure transducer 13.
embodiment 3:
a kind of information collecting method utilizing multiple sensor signals acquisition processing device described in embodiment 1-2, during use, described sensor group is placed on the relevant position needing the equipment carrying out information acquisition, input interface and output interface are electrically connected with supporting messaging device, after switching on power, the various information of equipment by after the collection of sensor group through being transferred to messaging device by after differential amplifier process; The decoupling capacitor be electrically connected with power module helps the electric current of circuit with stable, and the radio-frequency component be mixed with in the alternating current of high-frequency current and low-frequency current filters by shunt capacitance.
Claims (3)
1. a multiple sensor signals acquisition processing device, its composition comprises: Metal shielding shell, it is characterized in that: described Metal shielding shell is built with pcb board, described pcb board is equipped with input interface, described input interface is electrically connected with power module, and described power module is electrically connected with decoupling capacitor, and described decoupling capacitor is electrically connected with differential amplifier, described differential amplifier is electrically connected respectively with sensor group and shunt capacitance, and described shunt capacitance is electrically connected with output interface.
2. multiple sensor signals acquisition processing device according to claim 1, it is characterized in that: described power module, described decoupling capacitor, described differential amplifier, described shunt capacitance, described output interface are all contained on described pcb board, it is outside that described sensor group is arranged on described Metal shielding shell; Described sensor group comprises temperature sensor, humidity sensor, seal sensor, pressure transducer.
3. one kind utilizes the information collecting method of the multiple sensor signals acquisition processing device described in claim 1-2, it is characterized in that: during use, described sensor group is placed on the relevant position needing the equipment carrying out information acquisition, input interface and output interface are electrically connected with supporting messaging device, after switching on power, the various information of equipment by after the collection of sensor group through being transferred to messaging device by after differential amplifier process; The decoupling capacitor be electrically connected with power module helps the electric current of circuit with stable, and the radio-frequency component be mixed with in the alternating current of high-frequency current and low-frequency current filters by shunt capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228729.9A CN105157745A (en) | 2015-05-07 | 2015-05-07 | Multi-sensor signal acquisition and processing device and information acquisition method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228729.9A CN105157745A (en) | 2015-05-07 | 2015-05-07 | Multi-sensor signal acquisition and processing device and information acquisition method |
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| CN105157745A true CN105157745A (en) | 2015-12-16 |
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| CN201510228729.9A Pending CN105157745A (en) | 2015-05-07 | 2015-05-07 | Multi-sensor signal acquisition and processing device and information acquisition method |
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Citations (6)
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| CN101581713A (en) * | 2009-06-15 | 2009-11-18 | 山西农业大学 | Farmland information collector |
| CN101907480A (en) * | 2010-08-11 | 2010-12-08 | 富美科技有限公司 | Weighting sensor preamplifier circuit |
| US20130027058A1 (en) * | 2010-04-01 | 2013-01-31 | Koninklijke Philips Electronics N.V. | Signal measuring system, method for electrically conducting signals and a signal cable |
| CN103399201A (en) * | 2013-08-16 | 2013-11-20 | 中国科学院微电子研究所 | Universal detection chip system for weak signals of sensor |
| CN204031119U (en) * | 2014-07-28 | 2014-12-17 | 成都航天通信设备有限责任公司 | Multichannel avionics signals collecting interface circuit |
| CN204556030U (en) * | 2015-05-07 | 2015-08-12 | 黑龙江省科学院自动化研究所 | Multiple sensor signals acquisition processing device |
-
2015
- 2015-05-07 CN CN201510228729.9A patent/CN105157745A/en active Pending
Patent Citations (6)
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|---|---|---|---|---|
| CN101581713A (en) * | 2009-06-15 | 2009-11-18 | 山西农业大学 | Farmland information collector |
| US20130027058A1 (en) * | 2010-04-01 | 2013-01-31 | Koninklijke Philips Electronics N.V. | Signal measuring system, method for electrically conducting signals and a signal cable |
| CN101907480A (en) * | 2010-08-11 | 2010-12-08 | 富美科技有限公司 | Weighting sensor preamplifier circuit |
| CN103399201A (en) * | 2013-08-16 | 2013-11-20 | 中国科学院微电子研究所 | Universal detection chip system for weak signals of sensor |
| CN204031119U (en) * | 2014-07-28 | 2014-12-17 | 成都航天通信设备有限责任公司 | Multichannel avionics signals collecting interface circuit |
| CN204556030U (en) * | 2015-05-07 | 2015-08-12 | 黑龙江省科学院自动化研究所 | Multiple sensor signals acquisition processing device |
Non-Patent Citations (2)
| Title |
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| 丁晖、汤晓君主编: "《现代测试技术与系统设计》", 28 February 2015, 西安交通大学出版社 * |
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Application publication date: 20151216 |
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