CN204515405U - Reliability good multiple analog quantity sensor data acquisition system (DAS) - Google Patents
Reliability good multiple analog quantity sensor data acquisition system (DAS) Download PDFInfo
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- CN204515405U CN204515405U CN201520054574.7U CN201520054574U CN204515405U CN 204515405 U CN204515405 U CN 204515405U CN 201520054574 U CN201520054574 U CN 201520054574U CN 204515405 U CN204515405 U CN 204515405U
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Abstract
The utility model relates to a kind of reliability good multiple analog quantity sensor data acquisition system (DAS), comprise: sensor array interface, multi pass acquisition card, this multi pass acquisition card is connected with multiselect one switch, the output terminal of this multiselect one switch is connected with the input end of Circuit tuning module, the output terminal of Circuit tuning module is connected with the input end of an A/D module, the output terminal of this A/D module is connected with processor module, and the control signal output terminal of this processor module is connected with a communication interface; Described processor module is also connected with a wireless module, and this wireless module adopts gsm wireless module; Processor module adopts ARM chip, and described communication interface is CAN interface.
Description
The application is divisional application, the application number 2014206653882 of original application, applying date 2014-11-7, title: multiple analog quantity sensor data acquisition system (DAS).
Technical field
The utility model belongs to the field of sensor data acquisition, particularly relates to one kind of multiple analog sensor data acquisition system (DAS)s.
Background technology
Along with the development of automatic control system, the kind of industrial field device is more and more intelligent, kind is more and more diversified, when controlling, often depend on multiple sensors to detect simultaneously, to reach the object of Multi-mode control, but often there is the low shortcoming of data acquisition efficiency in existing control system.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, reliability good multiple analog quantity sensor data acquisition system (DAS).
In order to solve the problems of the technologies described above, the utility model provides a kind of reliability good multiple analog quantity sensor data acquisition system (DAS), comprise: sensor array interface, for obtaining the multi pass acquisition card of sensor array interface input data, this multi pass acquisition card is connected with multiselect one switch, the output terminal of this multiselect one switch is connected with the input end of a Circuit tuning module, the output terminal of this Circuit tuning module is connected with the input end of an A/D module, the output terminal of this A/D module is connected with processor module, the control signal output terminal of this processor module is connected with a communication interface.
In order to improve the versatility of Circuit tuning module, make all can nurse one's health the data of outside multiple voltage scope, described Circuit tuning module comprises: first, second channel unit, channel selection unit, described channel selection unit comprises: comparer, the in-phase end of this comparer is as the input end of Circuit tuning module, end of oppisite phase accesses a reference voltage, the output terminal of this comparer respectively with NPN triode, the base stage of PNP triode is connected, the collector of described NPN triode, the emitter of PNP triode is connected with power end respectively, the emitter of described NPN triode, the collector of PNP triode respectively with first passage unit, the feeder ear of second channel unit is connected, the in-phase end of described comparer is also connected with the input end of first, second channel unit respectively, and first passage unit comprises: for carrying out the bleeder circuit of step-down to input signal, the output terminal of bleeder circuit is connected with the input end of the first voltage follower, second channel unit comprises: the second voltage follower, and the output terminal of first, second voltage follower described is connected as the signal output part of Circuit tuning module.
In order to solve the technical matters that data store, described processor module is also connected with the storer for storage of collected data.In order to realize Long-range Data Transmission, save wiring cost, described processor module is also connected with a wireless module, and this wireless module adopts bluetooth or gsm wireless module.
The beneficial effects of the utility model are, analog data to be converted to digital quantity by sensor array interface, multi pass acquisition card, multiselect one switch, Circuit tuning module and A/D module and to input to processor module and process by the utility model, achieve multiple sensors data sampling and processing and carry out the effect of corresponding control, and it is high that this control system has integrated level, the advantage that picking rate is fast.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 shows the theory diagram of multiple analog quantity sensor data acquisition system (DAS);
Fig. 2 shows the theory diagram of Circuit tuning module;
Fig. 3 shows the theory diagram of channel selection unit;
In figure: comparer U1A, NPN triode T1, PNP triode T2, the first integrated operational amplifier U1A, the second integrated operational amplifier U1B, the 3rd integrated operational amplifier U1C.
Embodiment
As Fig. 1, multiple analog quantity sensor data acquisition system (DAS) comprises: sensor array interface, for obtaining the multi pass acquisition card of sensor array interface input data, this multi pass acquisition card is connected with multiselect one switch, the output terminal of this multiselect one switch is connected with the input end of a Circuit tuning module, the output terminal of this Circuit tuning module is connected with the input end of an A/D module, the output terminal of this A/D module is connected with processor module, the control signal output terminal of this processor module is connected with a communication interface, and by this communication interface, control signal is sent to host computer to control situ industrial equipment, the control output end of described processor module is connected with the control end of multiselect one switch.Wherein, processor module can adopt single-chip microcomputer or PLC or ARM chip.Described communication interface is CAN interface.
Described sensor array interface can when the process of many scale data, connect multiple sensors, also adding the FEEDBACK CONTROL of another sensor array interface for signal, namely feedback control circuit can be added on the technical scheme basis of multi-modal Process Control System.
Described Circuit tuning module comprises: first, second channel unit, channel selection unit, described channel selection unit comprises: comparer U1A, the in-phase end of this comparer U1A is as the input end of Circuit tuning module, end of oppisite phase accesses a reference voltage, the output terminal of this comparer respectively with NPN triode T1, the base stage of PNP triode T2 is connected, the collector of described NPN triode T1, the emitter of PNP triode T2 is connected with power end respectively, the emitter of described NPN triode T1, the collector of PNP triode T2 respectively with first passage unit, the feeder ear of second channel unit is connected, the in-phase end of described comparer U1A is also connected with the input end of first, second channel unit respectively, and first passage unit comprises: for carrying out the bleeder circuit of step-down to input signal, the output terminal of bleeder circuit is connected with the input end of the first voltage follower, second channel unit comprises: the second voltage follower, and the output terminal of first, second voltage follower described is connected as the signal output part of Circuit tuning module.Wherein, described bleeder circuit is in series by resistance R2 and resistance R3, one end access input signal ui of resistance R2, the other end of resistance R2 is connected with one end of resistance R3, and as the output terminal of described bleeder circuit, and resistance R2 or resistance R3 can adopt adjustable potentiometer (multiturn potentiometer) to regulate its output voltage.Described comparer and first, second voltage follower adopt the first integrated operational amplifier U1A, the second integrated operational amplifier U1B, the 3rd integrated operational amplifier U1C respectively.
The principle of work of described Circuit tuning module is, compared by reference voltage and input signal ui, such as reference voltage adopts 5V, namely, input signal ui scope is greater than 5V, then reduce magnitude of voltage by first passage unit, namely adjust within 5V scope by bleeder circuit, A/D module is accessed after the first voltage follower, if input signal ui scope is less than 5V, then directly carry out A/D module by the first voltage follower in second channel, therefore, this Circuit tuning module all can be able to be nursed one's health the input signal being greater than or less than reference voltage, improve the versatility of Circuit tuning module.Because the process of divider resistance to signal is linear, therefore, signal transacting can not distortion, and improves the stability of signal.
Described processor module is also connected with the storer for storage of collected data.Processor module is also connected with a wireless module, and this wireless module adopts bluetooth or gsm wireless module.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on instructions, must determine its technical scope according to right.
Claims (1)
1. a reliability good multiple analog quantity sensor data acquisition system (DAS), it is characterized in that comprising: sensor array interface, for obtain sensor array interface input data multi pass acquisition card, this multi pass acquisition card is connected with multiselect one switch, the output terminal of this multiselect one switch is connected with the input end of a Circuit tuning module, the output terminal of this Circuit tuning module is connected with the input end of an A/D module, the output terminal of this A/D module is connected with processor module, and the control signal output terminal of this processor module is connected with a communication interface;
Described processor module is also connected with a wireless module, and this wireless module adopts gsm wireless module; Processor module adopts ARM chip, and described communication interface is CAN interface;
Described Circuit tuning module comprises: first, second channel unit, channel selection unit,
Described channel selection unit comprises: comparer, the in-phase end of this comparer is as the input end of Circuit tuning module, end of oppisite phase accesses a reference voltage, the output terminal of this comparer is connected with the base stage of NPN triode, PNP triode respectively, the described collector of NPN triode, the emitter of PNP triode are connected with power end respectively, and the emitter of described NPN triode, the collector of PNP triode are connected with the feeder ear of first passage unit, second channel unit respectively.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420665388.2U CN204215195U (en) | 2014-11-07 | 2014-11-07 | Multiple analog quantity sensor data acquisition system (DAS) |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420665388.2U Division CN204215195U (en) | 2014-11-07 | 2014-11-07 | Multiple analog quantity sensor data acquisition system (DAS) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204515405U true CN204515405U (en) | 2015-07-29 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520055099.5U Expired - Fee Related CN204557103U (en) | 2014-11-07 | 2014-11-07 | Multiple analog quantity sensor data acquisition system (DAS) |
| CN201520054574.7U Expired - Fee Related CN204515405U (en) | 2014-11-07 | 2014-11-07 | Reliability good multiple analog quantity sensor data acquisition system (DAS) |
| CN201420665388.2U Expired - Fee Related CN204215195U (en) | 2014-11-07 | 2014-11-07 | Multiple analog quantity sensor data acquisition system (DAS) |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520055099.5U Expired - Fee Related CN204557103U (en) | 2014-11-07 | 2014-11-07 | Multiple analog quantity sensor data acquisition system (DAS) |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420665388.2U Expired - Fee Related CN204215195U (en) | 2014-11-07 | 2014-11-07 | Multiple analog quantity sensor data acquisition system (DAS) |
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| CN (3) | CN204557103U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154956B (en) * | 2016-08-29 | 2018-08-28 | 苏州盖恩茨电子科技有限公司 | A kind of intelligent electric-controlled drive-type temperature control simple two-way signal collector |
| CN107703827A (en) * | 2017-11-09 | 2018-02-16 | 成都才智圣有科技有限责任公司 | The multi-modal Process Control System of industrial big data driving |
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2014
- 2014-11-07 CN CN201520055099.5U patent/CN204557103U/en not_active Expired - Fee Related
- 2014-11-07 CN CN201520054574.7U patent/CN204515405U/en not_active Expired - Fee Related
- 2014-11-07 CN CN201420665388.2U patent/CN204215195U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN204215195U (en) | 2015-03-18 |
| CN204557103U (en) | 2015-08-12 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20151107 |
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| EXPY | Termination of patent right or utility model |