CN203642965U - Multi-interface temperature and humidity data collector - Google Patents
Multi-interface temperature and humidity data collector Download PDFInfo
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- CN203642965U CN203642965U CN201420015390.5U CN201420015390U CN203642965U CN 203642965 U CN203642965 U CN 203642965U CN 201420015390 U CN201420015390 U CN 201420015390U CN 203642965 U CN203642965 U CN 203642965U
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- interface
- voltage follower
- control module
- voltage
- mcu control
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Abstract
The utility model relates to a data collector and especially relates to a multi-interface temperature and humidity data collector. The collector comprises sensor connection interfaces, a compensation electrical bridge, a measurement electrical bridge, a voltage follower, an amplification setting circuit, an A/D converter and a MCU control module. There are two sensor connection interfaces which are a voltage type interface and a resistance type interface. The voltage type interface is connected with the voltage follower through the compensation electrical bridge. The resistance type interface is connected with the voltage follower through the measurement electrical bridge. The voltage follower is connected with the MCU control module successively through the amplification setting circuit and the A/D converter. According to the collector of the utility model, various kinds of sensor output interfaces can be integrated to the same data collector so that the data collector can be used for sensors with different types of interfaces simultaneously; system compatibility and adaptability are increased. Simultaneously, the data collector is simple in structure, is convenient in operation and is low in price.
Description
Technical field
The utility model relates to data acquisition unit, particularly a kind of many interfaces humiture data acquisition unit.
Background technology
In recent years along with the development of semiconductor technology and very large scale integration technology, release a large amount of Intelligent Digital Temperature Humidity Sensors, existing sensor is due to the diversity of its own interfaces, make the sensor must be supporting with corresponding data acquisition unit, that is to say the data acquisition unit that different sensors must be corresponding different, cause like this waste of data acquisition unit, and usually cause many restrictions, even for sensor is mated with data acquisition unit, the sacrificial section of having to measuring accuracy and function.Therefore, be badly in need of the humiture data acquisition unit of a kind of many interfaces of exploitation, be all suitable for for this data acquisition unit of sensor of distinct interface, and cost be lower.
Utility model content
For overcoming the deficiencies in the prior art, the utility model provides a kind of many interfaces humiture data acquisition unit, the sensor output interface of number of different types can be integrated on same data acquisition unit, can use the sensor of dissimilar interface simultaneously, the compatibility and the suitability that have improved system, meanwhile, the utility model is simple in structure, easy to operate, cheap.
For technical solution problem, the technical solution adopted in the utility model is: a kind of many interfaces humiture data acquisition unit, comprise sensor connecting interface 1, compensator bridge 2, measuring bridge 3, voltage follower 4, amplify the circuit 5 of adjusting, A/D converter 6 and MCU control module 7, described sensor connecting interface 1 is two, it is respectively voltage-type interface 8 and resistor-type interface 9, wherein, described voltage-type interface 8 is connected with voltage follower 4 by compensator bridge 2, described resistor-type interface 9 is connected with voltage follower 4 by measuring bridge 3, voltage follower 4 is connected with MCU control module 7 with A/D converter 6 by the amplification circuit 5 of adjusting successively.
Described interface also comprises an I2C interface 10, and described I2C interface 10 is directly connected with MCU control module 7.
Described interface also comprises a single bus interface 11, and described single bus interface 11 is directly connected with MCU control module 7.
Described compensator bridge 2, measuring bridge 3, voltage follower 4, amplify adjust circuit 5, A/D converter 6 and MCU control module 7 and be commercially available common kit, the utility model just improves the annexation of each element, does not relate to writing on any software.
The beneficial effects of the utility model: the utility model can be integrated in the sensor output interface of number of different types on same data acquisition unit, can use the sensor of dissimilar interface simultaneously, compatibility and the suitability of system are improved, simultaneously, the utility model is simple in structure, easy to operate, cheap.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model while being two interfaces;
Fig. 2 is the structured flowchart of the utility model while being four interfaces.
In figure: 1-sensor connecting interface, 2-compensator bridge, 3-measuring bridge, 4-voltage follower, 5-amplify adjust circuit, 6-A/D converter, 7-MCU control module, 8-voltage-type interface, 9-resistor-type interface, 10-I2C interface, 11-single bus interface.
Embodiment
Below in conjunction with accompanying drawing and implementation process, the utility model is described further, to facilitate the technical staff to understand.
As shown in Figure 1, a kind of many interfaces humiture data acquisition unit, comprise sensor connecting interface 1, compensator bridge 2, measuring bridge 3, voltage follower 4, amplify the circuit 5 of adjusting, A/D converter 6 and MCU control module 7, described sensor connecting interface 1 is two, it is respectively voltage-type interface 8 and resistor-type interface 9, wherein, described voltage-type interface 8 is connected with voltage follower 4 by compensator bridge 2, described resistor-type interface 9 is connected with voltage follower 4 by measuring bridge 3, voltage follower 4 is connected with MCU control module 7 with A/D converter 6 by the amplification circuit 5 of adjusting successively.Wherein:
(1) voltage-type interface 8: along with the variation of environment temperature, can cause thermopair reference junction temperature to change, thereby affect the precision of measurement data, therefore adopt auto compensatng circuit, the thermoelectrical potential that Compensative thermoelectric couple produces.Due to imitated output quantity-voltage that sensor 1 obtains, its numerical value is less, is generally microvolt.Therefore, this modular design voltage follower 4, amplify the circuit 5 of adjusting, obtain a standard voltage signal for A/D conversion, acquisition digital quantity after change by A/D.Then be connected with an I/O port of MCU control module 7, thereby realize reading of measurement data.
(2) resistor-type interface 9: due to imitated output quantity-resistance that sensor 1 obtains, must be converted into can be for the voltage signal of A/D conversion.Therefore, this modular design high stability and highly sensitive measuring bridge 3 first resistance variations is converted into change in voltage, then by voltage follower 4, amplify the circuit 5 of adjusting, obtain a standard voltage signal for A/D conversion, after changing by A/D, obtain digital quantity.Then be connected with an I/O port of MCU control module 7, thereby realize reading of measurement data.
Further as shown in Figure 2, described interface also comprises an I2C interface 10, and described I2C interface 10 is directly connected with MCU control module 7.What export because sensor 1 is own is serial digital amount, and therefore I2C interface 10 can directly be connected with the I/O port of MCU control module 7, thereby realizes reading of measurement data.
Further as shown in Figure 2, described interface also comprises a single bus interface 11, and described single bus interface 11 is directly connected with MCU control module 7.What export because sensor 1 is own is serial digital amount, and therefore, single bus interface 11 can directly be connected with an I/O port of MCU control module 7, thereby realizes reading of measurement data.
In the utility model, arranging of many interfaces can be integrated in the sensor output interface of number of different types on same data acquisition unit, the sensor of dissimilar interface is all suitable for, compatibility and the suitability of system are improved, and this multi-interface data collector hardware cost is not high, be convenient to very much promote the use of, meanwhile, it is simple that the utility model also has equipment, easy to operate, practical feature.
The utility model describes by accompanying drawing, in the situation that not departing from the utility model scope, can also carry out various conversion and be equal to replacement the utility model patent, therefore, the utility model patent is not limited to disclosed specific implementation process, and should comprise the whole embodiments that fall within the scope of the utility model Patent right requirement.
Claims (3)
1. the data acquisition unit of interface humiture more than a kind, comprise sensor connecting interface, compensator bridge, measuring bridge, voltage follower, amplification adjust circuit, A/D converter and MCU control module, it is characterized in that: described sensor connecting interface is two, it is respectively voltage-type interface and resistor-type interface, wherein, described voltage-type interface is connected with voltage follower by compensator bridge, described resistor-type interface is connected with voltage follower by measuring bridge, and voltage follower is connected with MCU control module with A/D converter by the amplification circuit of adjusting successively.
2. many interfaces of one humiture data acquisition unit as claimed in claim 1, is characterized in that: described sensor connecting interface also comprises an I2C interface, and described I2C interface is directly connected with MCU control module.
3. many interfaces of one humiture data acquisition unit as claimed in claim 1 or 2, is characterized in that: described sensor connecting interface also comprises a single bus interface, and described single bus interface is directly connected with MCU control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015390.5U CN203642965U (en) | 2014-01-10 | 2014-01-10 | Multi-interface temperature and humidity data collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015390.5U CN203642965U (en) | 2014-01-10 | 2014-01-10 | Multi-interface temperature and humidity data collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203642965U true CN203642965U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420015390.5U Expired - Fee Related CN203642965U (en) | 2014-01-10 | 2014-01-10 | Multi-interface temperature and humidity data collector |
Country Status (1)
| Country | Link |
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| CN (1) | CN203642965U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588951A (en) * | 2014-10-23 | 2016-05-18 | 北京自动化控制设备研究所 | Molecular electronic angular accelerometer weak signal processing circuit |
| CN104142645B (en) * | 2014-07-25 | 2017-02-15 | 广东志高空调有限公司 | Device and method capable of automatically switching to apply different types of sensor modules |
-
2014
- 2014-01-10 CN CN201420015390.5U patent/CN203642965U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142645B (en) * | 2014-07-25 | 2017-02-15 | 广东志高空调有限公司 | Device and method capable of automatically switching to apply different types of sensor modules |
| CN105588951A (en) * | 2014-10-23 | 2016-05-18 | 北京自动化控制设备研究所 | Molecular electronic angular accelerometer weak signal processing circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140611 Termination date: 20180110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |