CN202066819U - Humidity collector with improved structure - Google Patents
Humidity collector with improved structure Download PDFInfo
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- CN202066819U CN202066819U CN2011201509186U CN201120150918U CN202066819U CN 202066819 U CN202066819 U CN 202066819U CN 2011201509186 U CN2011201509186 U CN 2011201509186U CN 201120150918 U CN201120150918 U CN 201120150918U CN 202066819 U CN202066819 U CN 202066819U
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- humidity
- module
- card
- main control
- control module
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- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 4
- 238000013480 data collection Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A humidity collector with an improved structure comprises a humidity collection module, a main control module, an SD card (Secure Digital Memory Card) interface module, an SD storage card and a humidity display module. The humidity collector is characterized in that the humidity collection module, the main control module, the SD card interface module and the SD storage card are connected in sequence, and the main control module is further connected with the humidity display module. The humidity collection module sends collected data after AD (Analog-Digital) conversion to the main control module; after time point information is added to by the main control module, the data is displayed on a local humidity display module while the collected data is stored in the SD storage card through the SD card interface module.
Description
Technical field
The utility model relates to a kind of data collector, especially improves the humidity collector of structure.
Background technology
Humidity data is captured in the food product environment such as silo and often uses.Traditional humidity data collection all is to carry out data presentation by instrument, but save historical data, and check on computers at any time and be not easily, and the SD card humidity collector of my the invention (patent No.: ZL201020526813.1) the local data presentation function of design.
Summary of the invention
Existing humidity data collection saves historical data and the deficiency of data presentation comprehensive function aspect in order to overcome, the utility model provides a kind of humidity collector that improves structure, the humidity collector of this improvement structure can be kept temperature data and the acquisition time point that collects by the SD card, and be convenient for carrying, also can carry out data presentation in this locality simultaneously.
The technical scheme that its technical matters that solves the utility model adopts is: the humidity collector that improves structure, comprise humidity acquisition module, main control module, SD card interface module, SD storage card, humidity display module, it is characterized in that: humidity acquisition module, main control module, SD card interface module, SD storage card connect successively, and main control module also is connected with the humidity display module.The data that the humidity acquisition module collects after AD is changed are dealt into main control module, behind the main control module joining day dot information, show at the enterprising line data of the humidity display module of this locality when depositing the data that collect in the SD storage card by the SD card interface module.
The beneficial effects of the utility model are, can preserve the comprehensive function that historical image data and local data show, data check that backup is convenient, simple in structure, with low cost.
Description of drawings
Fig. 1 is a theory diagram of the present utility model; Fig. 2 is an electric structural drawing of the present utility model.
Embodiment
In Fig. 1, improve the humidity collector of structure, comprise humidity acquisition module 1, main control module 2, SD card interface module 3, SD storage card 4, humidity display module 5, it is characterized in that: humidity acquisition module 1, main control module 2, SD card interface module 3, SD storage card 5 connect successively, and main control module 2 also is connected with humidity display module 5.Humidity is gathered 1 of mould the data that collect after the AD conversion is dealt into main control module 2, behind 2 joining day of the main control module dot information, the humidity display module 5 enterprising line data in this locality when depositing the data that collect in SD storage card 4 by SD card interface module 3 show.
In Fig. 2, adopt the accurate dew point of digital hygro sensor SHT11 to measure, fully in the immersion water; Detect based on the request formula, so low energy consumption; Detection ability certainly with humidity sensor element also can obtain high precision and stability.Adopt the AT89S52 single-chip microcomputer of MCS251 framework.AT89S52 is a kind of low cost, low-power consumption, high performance CMOS 8 8-digit microcontrollers, has 8KB at system programmable Flash storer.Use AT89S52 read-write SD card, at first will determine the communication plan between them.The SD card has 2 kinds of optional communication protocols: SD pattern and SPI pattern.The SD pattern is the standard read-write mode of SD card, selects for use this pattern to need the MCU of select tape SD card control interface or extra SD card control units; The SPI pattern is finished communicating by letter of SD card and master controller by spi bus.Adopt the SPI communication pattern of SD card.Though AT89S52 does not have integrated SPI interface module yet, can simulate the SPI interface sequence with the mode of software.The problem that another one will solve is the level match of SD card and AT89S52.The logic level of SD card is equivalent to the Transistor-Transistor Logic level standard of 3.3V, and the logic level of AT89S52 is a 5V CMOS level.The principle that solves the level match problem has 2: the minimum value of a high level of exporting for the output level device should be identified as the minimum voltage value of high level greater than the incoming level device; Another is the maximum voltage value of output level device output low level, should be identified as low level maximum voltage value less than the incoming level device.Consider that SD is stuck under the SPI mode of operation, the transmission of data all is unidirectional, can adopt transistor to add the method for pull down resistor when the SD card transmits data at single-chip microcomputer like this.And when single-chip microcomputer transmits data, can adopt direct connection at the SD card, because the level between them just satisfies the compatible principle of above-mentioned level, main control module 2 is shown to humidity information on the LED display with the standard communications protocol that the LED display of serial ports type is connected by LED display by serial ports.
Claims (1)
1. humidity collector that improves structure, comprise humidity acquisition module (1), main control module (2), SD card interface module (3), SD storage card (4), humidity display module (5), it is characterized in that: humidity acquisition module (1), main control module (2), SD card interface module (3), SD storage card (4) connect successively, and main control module (2) also is connected with humidity display module (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201509186U CN202066819U (en) | 2011-05-12 | 2011-05-12 | Humidity collector with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201509186U CN202066819U (en) | 2011-05-12 | 2011-05-12 | Humidity collector with improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202066819U true CN202066819U (en) | 2011-12-07 |
Family
ID=45060679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201509186U Expired - Fee Related CN202066819U (en) | 2011-05-12 | 2011-05-12 | Humidity collector with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202066819U (en) |
-
2011
- 2011-05-12 CN CN2011201509186U patent/CN202066819U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20120512 |