CN203432709U - Frozen earth temperature measuring recorder - Google Patents
Frozen earth temperature measuring recorder Download PDFInfo
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- CN203432709U CN203432709U CN201320346849.5U CN201320346849U CN203432709U CN 203432709 U CN203432709 U CN 203432709U CN 201320346849 U CN201320346849 U CN 201320346849U CN 203432709 U CN203432709 U CN 203432709U
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- chip microcomputer
- sh78f166a
- sc91f712
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Abstract
The utility model relates to a frozen earth temperature measuring recorder which is composed of a power supply switch, a power supply processing module, a single chip microcomputer module, a liquid crystal display module, a key function module, a temperature measuring module, a clock module, an SD card module, a working state indication module, a communication module, a circuit board and a shell. All the modules are arranged on the 200mm*100mm*1.5mm circuit board. The measuring recorder can simultaneously measure and record temperatures of 1-64 points, temperature measurement is accurate, the working temperature ranges from minus 40 DEG C to 85 DEG C, the temperature resolution is up to 0.02 DEG C, the measurement precision is up to 0.05 DEG C, the sleep current in a non-online state is smaller than 20 muA, and the working temperature ranges from minus 40 DEG C to 85 DEG C. Meanwhile, the frozen earth temperature measuring recorder has the characteristics of small size, light weight, low power consumption, high integration degree, low-temperature resistance, low cost, reliable operation, high operation speed, good load performance and online real-time display capability and is especially suitable for long-term temperature measuring and recording in frozen earth areas.
Description
Technical field
The utility model relates to a kind of thermometric instruments, relates to specifically a kind of frozen soils temperature survey record instrument.
Background technology
In cryopedology research, temperature survey is one of the most measured physical quantity, and a lot of to the measuring method of temperature and relevant measuring equipment and instrument, thermistor temperature detecting is a kind of wherein the most frequently used high precision contact temperature-measuring method.Its temperature-measurement principle is to utilize thermistor (R) in certain temperature range, and its resistance coefficient becomes characteristic accurate, sensitive, regulated linear relation to measure with temperature.On the one hand, monitored field point is widely distributed, the point for measuring temperature of each some monitoring is many, so just need to configure a large amount of temperature measuring devices, the automatic temperature measurement instrument overwhelming majority who adopts is at present import equipment, expensive, and therefore many thermometric field points are all to measure by artificial going for 1 time/month or 1 times/year, the expense that not only wastes time and energy is large, and does not obtain continuously data accurately.On the other hand, to thermometric, many functions of import temperature measuring device are all idle, cause very large waste.So in thermometric process, economize on resources and great number cost must not be irrespective problem.
Summary of the invention
In view of above-mentioned, the purpose of this utility model aims to provide a kind of frozen soils temperature survey record instrument, for to frozen soils temperature survey record.
The purpose of this utility model completes like this:
A survey record instrument, is box body.In box body, comprise a slice main control singlechip SH78F166A, eight slice, thin piece single-chip microcomputer SC91F712, a QC12846B Chinese character image dot matrix lcd module, a SD card read-write memory module, a PCF8563 clock module, a slice L7805 tri-rectifies power supply voltage stabilizing integrated chip, a slice REG1117-3.3 is adjustable low voltage difference positive supply voltage stabilizing integrated chip, and all modules are arranged on the circuit main board of a 200mm * 100mm * 1.5mm.Utilize REG1117-3.3 to provide 3.3V voltage to SD memory card module circuit.Main control singlechip SH78F166A sends a pulse signal first to sub-single-chip microcomputer SC91F712, after receiving pulse signal, sub-single-chip microcomputer SC91F712 starts, sub-single-chip microcomputer SC91F712 adopts the alternately scan mode of input, voltage signal to tested thermistor by dividing potential drop gained gathers, realize A/D conversion, draw data, sub-single-chip microcomputer SC91F712 used serial mode to send to main control singlechip SH78F166A translation data again, main control singlechip SH78F166A in inside after treatment, by external LCD MODULE, data are shown, by external SD card read-write memory module, data are stored, by external communication interface module, data can be sent on computer.In addition, main control singlechip SH78F166A reads the time by external clock module and stores in SD card.
The beneficial effect of advantage of the present utility model and generation is:
The temperature of 1-64 points can be measured simultaneously and record to this survey record instrument, and thermometric is accurate, operating temperature range-40-85 ℃, temperature resolution reaches 0.02 ℃, measuring accuracy reaches 0.05 ℃, and under non-on line state, quiescent current is less than 20uA, and operating temperature range is-40-85 ℃.Have the features such as volume is little, lightweight, power consumption is little, integrated level is high, low temperature resistant, cost is low, reliable operation, travelling speed is fast, load characteristic good and can show in real time online, particularly suitable carries out long-term temperature survey record in Frozen Ground Area simultaneously.
Technical parameter of the present utility model is:
1, measure temperature spot scope: 1-64;
2, temperature resolution :≤0.02 ℃;
3, measuring accuracy :≤0.05 ℃;
4, quiescent current under non-on line state: < 20uA;
5, operating voltage: 10-14VDC;
6, operating temperature range :-40-85 ℃.
Accompanying drawing explanation
Fig. 1 is the structural representation of this survey record instrument.
?fig. 2 is the power supply processing module circuit diagram of this survey record instrument.
Fig. 3 is the main control singlechip SH78F166A circuit diagram of this survey record instrument.
Fig. 4 is the sub-single-chip microcomputer SC91F712 circuit diagram of this survey record instrument.
Fig. 5 is the LCD MODULE circuit diagram of this survey record instrument.
Fig. 6 is the clock module circuit diagram of this survey record instrument.
Fig. 7 is SD card memory module and the 3.3V power supply processing circuit figure of this survey record instrument.
Fig. 8 is the keypress function module circuit diagram of this survey record instrument.
Fig. 9 is the workflow diagram of this survey record instrument.
?
Embodiment
It is example that the present embodiment be take 64 thermistors, and wherein thermistor used is produced by Changzhou Borrow Electronics Co., Ltd., and model is 0568, and wherein 1-64 measurement port connect respectively corresponding 1-64# thermistor, and concentric line is corresponding to be connected.
Below in conjunction with accompanying drawing, the technical solution of the utility model is further described again:
As shown in Fig. 1-9, a kind of frozen soils temperature survey record instrument, this measuring instrument (or circuit) comprises a slice main control singlechip SH78F166A, as Master control chip, eight slice, thin piece single-chip microcomputer SC91F712, be used for realizing A/D conversion, a QC12846B Chinese character image dot matrix lcd module, for display measurement data, a SD card read-write memory module, measures the data of obtaining, a PCF8563 clock module for storing, for providing the time to main control chip SH79F166A, a slice L7805 tri-rectifies power supply voltage stabilizing integrated chip.Utilize L7805 to provide 5V voltage to circuit, a slice REG1117-3.3 is adjustable low voltage difference positive supply voltage stabilizing integrated chip, utilizes REG1117-3.3 to provide 3.3V voltage to SD memory card module circuit.All modules are arranged on the circuit main board of a 200mm * 100mm * 1.5mm
By the requirement of the required thermistor number of actual frozen soil thermometric, respectively the lead-in wire of thermistor is closely connected to the Wiring port of this survey record instrument.
When main control singlechip SH78F166A sends a pulse signal to eight sub-single-chip microcomputer SC91F712, after receiving pulse signal, sub-single-chip microcomputer SC91F712 starts, sub-single-chip microcomputer SC91F712 adopts the alternately scan mode of input, voltage signal to tested thermistor by dividing potential drop gained gathers, realize A/D conversion and draw data, sub-single-chip microcomputer SC91F712 used serial mode to send to main control singlechip SH78F166A translation data again, main control singlechip SH78F166A in inside after treatment, by external LCD MODULE, the data of obtaining are shown, by external SD card memory module, to obtaining data, store, by external communication interface module, data can be sent on computer.In addition, main control singlechip SH78F166A reads the time by external clock module and stores in SD card.System scan is measured 64 thermistors, and after the data of obtaining are stored, at this moment main control singlechip SH78F166A will be to stopping after corresponding pulse signal of sub-single-chip microcomputer SC91F712.After this measurement completes, wait for that measuring-signal arrives next time.
The present embodiment is under the environment of-20 ℃ in temperature, adopts this survey record instrument to measure the result of 64 thermistors, and temperature resolution reaches 0.02 ℃, and precision reaches 0.05 ℃, and under non-on line state, quiescent current is less than 20uA.
Claims (1)
1. a frozen soils temperature survey record instrument, be box body, in box body, comprise a slice main control singlechip SH78F166A, eight slice, thin piece single-chip microcomputer SC91F712, a QC12846B Chinese character image dot matrix lcd module, a SD card read-write memory module, a PCF8563 clock module, a slice L7805 tri-rectifies power supply voltage stabilizing integrated chip, a slice REG1117-3.3 is adjustable low voltage difference positive supply voltage stabilizing integrated chip, all modules are arranged on the circuit main board of a 200mm * 100mm * 1.5mm, it is characterized in that: main control singlechip SH78F166A first sends a pulse signal to sub-single-chip microcomputer SC91F712, after receiving pulse signal, sub-single-chip microcomputer SC91F712 starts, sub-single-chip microcomputer SC91F712 adopts the alternately scan mode of input, voltage signal to tested thermistor by dividing potential drop gained gathers, realize A/D conversion and draw data, sub-single-chip microcomputer SC91F712 used serial mode to send to main control singlechip SH78F166A translation data again, main control singlechip SH78F166A in inside after treatment, by external LCD MODULE, data are shown, by external SD card memory module, data are stored, by external communication interface module, data can be sent on computer, in addition, main control singlechip SH78F166A reads the time by external clock module and stores in SD card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320346849.5U CN203432709U (en) | 2013-06-18 | 2013-06-18 | Frozen earth temperature measuring recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320346849.5U CN203432709U (en) | 2013-06-18 | 2013-06-18 | Frozen earth temperature measuring recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203432709U true CN203432709U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320346849.5U Expired - Fee Related CN203432709U (en) | 2013-06-18 | 2013-06-18 | Frozen earth temperature measuring recorder |
Country Status (1)
| Country | Link |
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| CN (1) | CN203432709U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480823A (en) * | 2014-12-12 | 2015-04-01 | 中交第一公路勘察设计研究院有限公司 | Cold air collection device and cold air collection method for cooling large-scale frozen earth roadbed of highway |
| CN106525280A (en) * | 2016-11-25 | 2017-03-22 | 中交第公路勘察设计研究院有限公司 | Distributed high precision temperature monitoring system and method in high-altitude permafrost regions |
-
2013
- 2013-06-18 CN CN201320346849.5U patent/CN203432709U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480823A (en) * | 2014-12-12 | 2015-04-01 | 中交第一公路勘察设计研究院有限公司 | Cold air collection device and cold air collection method for cooling large-scale frozen earth roadbed of highway |
| CN106525280A (en) * | 2016-11-25 | 2017-03-22 | 中交第公路勘察设计研究院有限公司 | Distributed high precision temperature monitoring system and method in high-altitude permafrost regions |
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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: 20140212 Termination date: 20140618 |
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| EXPY | Termination of patent right or utility model |