CN201974238U - Temperature collector capable of automatically storing data - Google Patents
Temperature collector capable of automatically storing data Download PDFInfo
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- CN201974238U CN201974238U CN2011200169670U CN201120016967U CN201974238U CN 201974238 U CN201974238 U CN 201974238U CN 2011200169670 U CN2011200169670 U CN 2011200169670U CN 201120016967 U CN201120016967 U CN 201120016967U CN 201974238 U CN201974238 U CN 201974238U
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- temperature
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- data memory
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- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
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Abstract
A temperature collector capable of automatically storing data comprises a temperature sensing and collecting module, a main control module, an SD data storing interface and an SD data storing module and is characterized in that the temperature sensing and collecting module, the main control module, the SD data storing interface and the SD data storing module are sequentially connected. After the temperature sensing and collecting module digitalizes an ambient temperature, the main control module converts the data format and the data is stored in the SD data storing module in the form of a file through the SD data storing interface.
Description
Technical field
The utility model relates to a kind of temperature collecting device, especially the Temperature sampler of automaticdata storage.
Background technology
Need on-the-spot temperature data acquisition at a lot of industrial circles, traditional temperature data acquisition all is that the temperature acquisition instrument does not have memory function, has caused the decline of travelling performance, uses inconvenient.
Summary of the invention
In order to overcome the bad deficiency of existing temperature data acquisition movability, the utility model provides a kind of Temperature sampler of automaticdata storage, and the Temperature sampler of this automaticdata storage can be saved in the historical temperature data of gathering in the SD card and be convenient for carrying.
The technical scheme that its technical matters that solves the utility model adopts is: the Temperature sampler of automaticdata storage, comprise temperature sensing acquisition module, main control module, SD data memory interface, SD data memory module, it is characterized in that temperature sensing acquisition module, main control module, SD data memory interface, SD data memory module connect successively.By the temperature sensing acquisition module with the environment temperature digitizing after Data Format Transform by main control module, store in the SD data memory module by the SD data memory interface with the form of file.
The beneficial effects of the utility model are, are convenient for carrying, and are easy to use, have very high practical value.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
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, the Temperature sampler of automaticdata storage, comprise temperature sensing acquisition module 1, main control module 2, SD data memory interface 3, SD data memory module 4, it is characterized in that temperature sensing acquisition module 1, main control module 2, SD data memory interface 3, SD data memory module 4 connect successively.By temperature sensing acquisition module 1 with the environment temperature digitizing after Data Format Transform by main control module 2, store in the SD data memory module 4 by SD data memory interface 3 with the form of file.
In Fig. 2, 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.Adopt SHT10 single-chip digital humiture integrated sensor.It adopts the little processing patented technology of CMOS process (CMOSens technology), guarantees that product has high reliability and outstanding long-time stability.This sensor is made up of 1 condenser type condensate hygrometric element and 1 energy gap formula temperature element, and with 1 14 A/D converter and 1 2-wire digital interface seamless combination in single-chip.Temperature data is transferred to behind the AT91SAM7S256 to be saved in the SD card by the SD interface module with figure pattern and stores.
Claims (1)
1. the Temperature sampler of automaticdata storage, comprise temperature sensing acquisition module (1), main control module (2), SD data memory interface (3), SD data memory module (4), it is characterized in that temperature sensing acquisition module (1), main control module (2), SD data memory interface (3), SD data memory module (4) connect successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200169670U CN201974238U (en) | 2011-01-18 | 2011-01-18 | Temperature collector capable of automatically storing data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200169670U CN201974238U (en) | 2011-01-18 | 2011-01-18 | Temperature collector capable of automatically storing data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974238U true CN201974238U (en) | 2011-09-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200169670U Expired - Fee Related CN201974238U (en) | 2011-01-18 | 2011-01-18 | Temperature collector capable of automatically storing data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201974238U (en) |
-
2011
- 2011-01-18 CN CN2011200169670U patent/CN201974238U/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: 20110914 Termination date: 20120118 |