CN103885379A - Rotating speed type multisensory signal collecting device - Google Patents
Rotating speed type multisensory signal collecting device Download PDFInfo
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- CN103885379A CN103885379A CN201410058014.9A CN201410058014A CN103885379A CN 103885379 A CN103885379 A CN 103885379A CN 201410058014 A CN201410058014 A CN 201410058014A CN 103885379 A CN103885379 A CN 103885379A
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Abstract
The invention discloses a rotating speed type multisensory signal collecting device, which is used for collecting various kinds of signals of a sensor group. The collection device comprises a power supply module, an industrial personal computer, a PLC, a signal conditioning circuit and an AD collection card. The power supply module is connected to the industrial personal computer, the sensor group and the PLC; the industrial personal computer is connected to the PLC; the industrial computer is connected to the AD collection card; the PCL transmits control signals for switching on and off the signal conditioning circuit to receive the signals transmitted by the sensor; the AD collection card is connected to the signal conditioning circuit for collecting the signal outputted by the signal conditioning circuit. Compared with the prior art, the invention has advantages of easy operation, reducing error and saving cost.
Description
Technical field
The present invention relates to a kind of signal pickup assembly, especially relate to a kind of rotating speed class multiple sensor signals harvester.
Background technology
Along with the development of electronic technology, automotive electronics degree improves constantly, and common mechanical system has been difficult to solve some problem relevant with automobile function requirement, and is replaced by electronic control system.In Hyundai Motor Electronic Control, sensor is widely used in engine control system, chassis control system, body control system and navigational system.Sensor can be identified the variation of extraneous and system itself in time, to the information such as temperature, pressure, position, rotating speed, volumetric flow rate carry out in real time, measurement accurately, and information passed to computer process, thereby realize the Electronic Control of the each system of automobile.
More and more higher for the performance requirement of rotating speed class sensor for domestic each automobile sensor manufacturer, for the permanance of rotating speed class sensor detecting device, stability, intelligent grade all proposed very high requirement.
Mostly the at present domestic detection to vehicle speed sensor is by manually observing to realize with oscillograph, therefore efficiency is low, the limitation of low precision, data processing and analysis ability, be difficult for the reasons such as storage data, the needs that are more and more difficult to the test that meets modernization automobile sensor.
Summary of the invention
Object of the present invention is exactly to provide a kind of rotating speed class multiple sensor signals harvester in order to overcome the defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
A kind of rotating speed class multiple sensor signals harvester, for the multi-signal of pick-up transducers group, it is characterized in that, described harvester comprises power module, industrial computer, PLC, signal conditioning circuit and AD capture card, described power module respectively with industrial computer, sensor group is connected with PLC, described industrial computer is connected with PLC, described industrial computer is connected with AD capture card, described PLC sends the signal that control signal is opened or cut-off signals modulate circuit receiving sensor sends, described AD capture card is connected with signal conditioning circuit, the output signal of collection signal modulate circuit.
Described industrial computer is connected by network interface with PLC.
Described industrial computer is connected by pci interface with AD capture card.
Described signal conditioning circuit comprises electrode input end, negative input, output terminal, resistance R 1, resistance R 2, resistance R 3, potentiometer RW1, relay K 1, relay K 2 and relay K 3, described electrode input end, resistance R 1, resistance R 2, resistance R 3, potentiometer RW1 and negative input are connected successively, described relay K 1, the coil of relay K 2 and relay K 3 is connected with PLC respectively, the contact of described relay K 1 is connected with electrode input end and output terminal respectively, contact one end of described relay K 2 is connected between resistance R 1 and resistance R 2, the other end is connected with output terminal, contact one end of described relay K 3 is connected between resistance R 2 and resistance R 3, the other end is connected with output terminal.
The resistance of described resistance R 1 is 40.2K Ω.
The resistance of described resistance R 2 is 5.1K Ω.
The resistance of described resistance R 3 is 5.1K Ω.
The resistance of described potentiometer RW1 is 1K Ω.
Described multisensor has 9, comprises three kinds of sensors can measuring the speed of a motor vehicle, position and rotating speed, and every kind of sensor has 3.
Described AD capture card has 3 passages, and described vehicle speed sensor, position transducer and speed probe is connected with 3 passages respectively by signal conditioning circuit.
Compared with prior art, the present invention has the following advantages:
1, easy and simple to handle.This device all operations all can pass through on industrial computer host computer, and human-computer interaction interface is realized the sequence of operations such as the signals collecting, measurement, storage of multisensor.Compare traditional manual measurement, recording mode more reliably, more convenient, stability is higher, dirigibility is stronger.Can meet the many-sided demand of user.Facilitate sensor production producer that the indices of sensor is measured and preserved.
2, reduce error.This device adopts 20M high-speed collection card to sample to sensor signal, and it is higher that precision is compared traditional measurement mode precision.And such as hall sensor etc. often needs the rise and fall edge of survey sensor output signal, can reduce for the measurement of this class Microsecond grade the error producing because of measuring accuracy.
3, cost-saving.Adopt the passage of PLC control inputs signal and the switching of decay multiplying power, can be just with 3 AD sampling channels simultaneously to 3 kinds, every kind each 3, totally 9 sensor continuous acquisition.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is signal conditioning circuit module diagram of the present invention.
Fig. 3 is AD capture card interface schematic diagram of the present invention.
In Fig. 2, Ui+, Ui-are input signal, and Uo+, Uo-are output signal, and KEY1, KEY2, KEY3 are respectively relay control signal.
In Fig. 3, AI1+ and AI1-Wei Yi road signal are input to the passage 1 of capture card, and AI2+, AI2-, AI3+, AI3-are input to respectively in passage 2 and 3.OUT-C1 and C1-, OUT-C2 and C2-, OUT-C3 and C3-are respectively the output signal of three tunnel vehicle speed sensor after modulate circuit; OUT-W1 and W1-, OUT-W2 and W2-, OUT-W3 and W3-are respectively the output signal of No. three position transducers after modulate circuit; OUT-Z1 and Z1-, OUT-Z2 and Z2-, OUT-Z3 and Z3-are respectively the output signal of No. three speed probes after modulate circuit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The present embodiment is implemented as prerequisite taking technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of rotating speed class multiple sensor signals harvester, for the multi-signal of pick-up transducers group, described harvester comprises power module, industrial computer, PLC, signal conditioning circuit and AD capture card, described power module respectively with industrial computer, sensor group is connected with PLC, described industrial computer is connected with PLC, described industrial computer is connected with AD capture card, described PLC sends the signal that control signal is opened or cut-off signals modulate circuit receiving sensor sends, described AD capture card is connected with signal conditioning circuit, the output signal of collection signal modulate circuit.
Described industrial computer is connected by network interface with PLC.Described industrial computer is connected by pci interface with AD capture card.
Described signal conditioning circuit comprises electrode input end, negative input, output terminal, resistance R 1, resistance R 2, resistance R 3, potentiometer RW1, relay K 1, relay K 2 and relay K 3, described electrode input end, resistance R 1, resistance R 2, resistance R 3, potentiometer RW1 and negative input are connected successively, described relay K 1, the coil of relay K 2 and relay K 3 is connected with PLC respectively, the contact of described relay K 1 is connected with electrode input end and output terminal respectively, contact one end of described relay K 2 is connected between resistance R 1 and resistance R 2, the other end is connected with output terminal, contact one end of described relay K 3 is connected between resistance R 2 and resistance R 3, the other end is connected with output terminal.
In the time of KEY1 output high level, relay K 1 closure, output signal U o=Ui, i.e. undamped output;
In the time of KEY2 output high level, relay K 2 closures, output signal U o=(RW1+R3+R2)/(RW1+R3+R2+R1) * Ui, i.e. 5 times of decay outputs;
In the time of KEY3 output high level, relay K 3 closures, output signal U o=(RW1+R3)/(RW1+R3+R2+R1) * Ui, i.e. 10 times of decay outputs.
The resistance of described resistance R 1 is 40.2K Ω.The resistance of described resistance R 2 is 5.1K Ω.The resistance of described resistance R 3 is 5.1K Ω.The resistance of described potentiometer RW1 is 1K Ω.
Described multisensor has 9, comprises three kinds of sensors can measuring the speed of a motor vehicle, position and rotating speed, and every kind of sensor has 3.
Described AD capture card has 3 passages, and described vehicle speed sensor, position transducer and speed probe is connected with 3 passages respectively by signal conditioning circuit. Vehicle speed sensor 1,2,3 is connected with capture card passage 1 by relay K 1; Position transducer 1,2,3 is connected with capture card passage 2 by relay K 2; Speed probe 1,2,3 is connected with capture card passage 3 by relay K 3.
Claims (10)
1. a rotating speed class multiple sensor signals harvester, for the multi-signal of pick-up transducers group, it is characterized in that, described harvester comprises power module, industrial computer, PLC, signal conditioning circuit and AD capture card, described power module respectively with industrial computer, sensor group is connected with PLC, described industrial computer is connected with PLC, described industrial computer is connected with AD capture card, described PLC sends the signal that control signal is opened or cut-off signals modulate circuit receiving sensor sends, described AD capture card is connected with signal conditioning circuit, the output signal of collection signal modulate circuit.
2. a kind of rotating speed class multiple sensor signals harvester according to claim 1, is characterized in that, described industrial computer is connected by network interface with PLC.
3. a kind of rotating speed class multiple sensor signals harvester according to claim 1, is characterized in that, described industrial computer is connected by pci interface with AD capture card.
4. a kind of rotating speed class multiple sensor signals harvester according to claim 1, it is characterized in that, described signal conditioning circuit comprises electrode input end, negative input, output terminal, resistance R 1, resistance R 2, resistance R 3, potentiometer RW1, relay K 1, relay K 2 and relay K 3, described electrode input end, resistance R 1, resistance R 2, resistance R 3, potentiometer RW1 and negative input are connected successively, described relay K 1, the coil of relay K 2 and relay K 3 is connected with PLC respectively, the contact of described relay K 1 is connected with electrode input end and output terminal respectively, contact one end of described relay K 2 is connected between resistance R 1 and resistance R 2, the other end is connected with output terminal, contact one end of described relay K 3 is connected between resistance R 2 and resistance R 3, the other end is connected with output terminal.
5. a kind of rotating speed class multiple sensor signals harvester according to claim 1, is characterized in that, the resistance of described resistance R 1 is 40.2K Ω.
6. a kind of rotating speed class multiple sensor signals harvester according to claim 1, is characterized in that, the resistance of described resistance R 2 is 5.1K Ω.
7. a kind of rotating speed class multiple sensor signals harvester according to claim 1, is characterized in that, the resistance of described resistance R 3 is 5.1K Ω.
8. a kind of rotating speed class multiple sensor signals harvester according to claim 1, is characterized in that, the resistance of described potentiometer RW1 is 1K Ω.
9. a kind of rotating speed class multiple sensor signals harvester according to claim 1, is characterized in that, described multisensor has 9, comprises three kinds of sensors can measuring the speed of a motor vehicle, position and rotating speed, and every kind of sensor has 3.
10. according to a kind of rotating speed class multiple sensor signals harvester described in claim 1 and 7, it is characterized in that, described AD capture card has 3 passages, and described vehicle speed sensor, position transducer and speed probe is connected with 3 passages respectively by signal conditioning circuit.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106773892A (en) * | 2016-11-09 | 2017-05-31 | 北京许继电气有限公司 | The digital and analogue signals harvester of industry is equipped towards electrician |
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CN101377526A (en) * | 2007-08-31 | 2009-03-04 | 比亚迪股份有限公司 | Device for detecting vehicle speed sensor performance |
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- 2014-02-20 CN CN201410058014.9A patent/CN103885379A/en active Pending
Patent Citations (3)
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US20040193988A1 (en) * | 2003-03-26 | 2004-09-30 | James Saloio | Engine speed sensor with fault detection |
CN101377526A (en) * | 2007-08-31 | 2009-03-04 | 比亚迪股份有限公司 | Device for detecting vehicle speed sensor performance |
CN202970919U (en) * | 2012-10-11 | 2013-06-05 | 成都赛腾自动化工程有限公司 | Generator set monitoring system based on PLC |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106773892A (en) * | 2016-11-09 | 2017-05-31 | 北京许继电气有限公司 | The digital and analogue signals harvester of industry is equipped towards electrician |
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Application publication date: 20140625 |