CN201583353U - Thermohygrograph based on MSP430 single-chip computer - Google Patents

Thermohygrograph based on MSP430 single-chip computer Download PDF

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Publication number
CN201583353U
CN201583353U CN2010200493985U CN201020049398U CN201583353U CN 201583353 U CN201583353 U CN 201583353U CN 2010200493985 U CN2010200493985 U CN 2010200493985U CN 201020049398 U CN201020049398 U CN 201020049398U CN 201583353 U CN201583353 U CN 201583353U
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China
Prior art keywords
module
humidity
communication
control
power supply
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Expired - Fee Related
Application number
CN2010200493985U
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Chinese (zh)
Inventor
邹洪波
付华圆
王俊宏
鲁仁全
薛安克
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Hangzhou Dianzi University
Hangzhou Electronic Science and Technology University
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Hangzhou Electronic Science and Technology University
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Priority to CN2010200493985U priority Critical patent/CN201583353U/en
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Publication of CN201583353U publication Critical patent/CN201583353U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model relates to a thermohygrograph based on an MSP430F149 single-chip computer. A traditional measurement instrument has larger volume, and mechanical components are incompatible with electronic control equipment. The thermohygrograph comprises a control module, a temperature module, a humidity module, an RS232 communication module, an RS485 communication module, an alarm module, a power supply module and a power supply voltage measurement module. The temperature module and the humidity module are respectively connected with the signal of an A/D sampling interface in the control module, and the RS232 communication module and the RS485 communication module are respectively connected with the signal of a universal asynchronous serial interface in the control module; the alarm module and the power supply voltage measurement module are respectively connected with the signal of an I/O interface in the control module; and the power supply module supplies power for the control module, the temperature module, the humidity module, the RS232 communication module, the RS485 communication module and the power supply voltage measurement module. The utility model has low power consumption and high accuracy and can receive analog and digital signals.

Description

A kind of humiture instrument based on the MSP430 single-chip microcomputer
Technical field
The utility model belongs to the measurement sensory field, is specifically related to a kind of humiture instrument based on the MSP430 single-chip microcomputer.
Background technology
Temperature humidity and people's life and commercial production are closely bound up, and we will know the exact value of the two a lot of occasions.How not only accurately but also easily measure them, people have proposed a lot of methods, the mercury thermometer of surveying body temperature is arranged as thermometry, alcohol thermometer, survey the kerosene thermometer of room temperature, the thermopair that industry spot is used more has the infrared non-contact temperature measuring technology of measuring high temperature, based on the thermometry and the laser temperature-measuring technology of colored CCD three primary colours.Above-mentioned thermometry respectively has relative merits, and with regard to thermometry commonly used in the life, mercury thermometer is used at most, and is also very convenient, but it generally only is used for measurement of bldy temperature, needs artificial reading, and data can not be uploaded automatically.The development of temperature sensor technology in recent years is very fast, occurs on market already based on the electronic thermometer of singlechip technology.This instrument can directly show measuring numerical value, but powered battery, and data can link to each other with host computer by interface, can be used for data collection and analysis.
The method of measuring humidity for another example has hair hygrometer, psychrometer, chilled-mirror type dew point instrument etc.The instrument of last planar survey humidity adopts classical sense moor reason mostly, because volume is bigger, has mechanical part, incompatible with control electronics, though also have application, be not enough to satisfy modern development in science and technology, particularly the demand of humidity control in some field.Along with development of science and technology, people have found that humidity changes certain relation that presents in the electrical characteristics of some material and the air, can be with these material humidity sensors.It is applicable to automation field, mainly contains three kinds of resistance-types, condenser type, photo-electric, and other is uncommon to also have surface acoustic wave type, microwave type, diode-type, infrared-type or the like.Capacitance type humidity sensor particularly, it utilizes the variation of the variation of some material capacitances and ambient humidity to be linear approximate relationship and measures humidity.Sensor more advances with particular electrical circuit is integrated in some major companies, makes its output linear voltage, is converted to digital signal by A/D, changes through certain mathematics then, can very easily humidity value be shown.
Summary of the invention
The utility model has proposed a kind of humiture instrument based on the MSP430F149 single-chip microcomputer at the deficiencies in the prior art, and it is applicable to the temperature survey under the normal temperature.
A kind of humiture instrument based on the MSP430F149 single-chip microcomputer comprises control module, thermal module, humidity module, RS232 communication module, RS485 communication module, alarm module, power module and supply voltage measurement module.
Thermal module and humidity module are connected with A/D thief hatch signal in the control module respectively, and the RS232 communication module is connected with universal asynchronous serial interface (UART) signal in the control module respectively with the RS485 communication module; Alarm module is connected with I/O mouth signal in the control module respectively with the supply voltage measurement module; Power module is control module, thermal module, humidity module, RS232 communication module, RS485 communication module and the power supply of supply voltage measurement module.
Principal feature of the present utility model is low-power consumption, can charge automatically, and high precision can receive analog-and digital-two kinds of signals.Low-power consumption is to realize by the super low-power consumption series monolithic MSP460F149 that uses TI company, cooperates software design, and instrument can be in dormant state when not working.This instrument when linking to each other with host computer, can transfer the host computer powering mode by the DB9 mouth to automatically, can also charge to accumulator, has prolonged battery serviceable life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of humiture instrument based on the MSP430F149 single-chip microcomputer comprises control module 1, thermal module 2, humidity module 3, RS232 communication module 4, RS485 communication module 5, alarm module 6, power module 7 and supply voltage measurement module 8.
Thermal module 2 and humidity module 3 are connected with A/D thief hatch signal in the control module 1 respectively, and RS232 communication module 4 is connected with universal asynchronous serial interface (UART) signal in the control module 1 respectively with RS485 communication module 5; Alarm module 6 is connected with I/O mouth signal in the control module 1 respectively with supply voltage measurement module 8; Power module 7 is control module 1, thermal module 2, humidity module 3, RS232 communication module 4, RS485 communication module 5 and 8 power supplies of supply voltage measurement module.
The utility model adopts the MSP430F149 single-chip microcomputer as control chip, coordinates the work of instrument various piece.The amplifying circuit of charged bridge is adopted in the reception of sensor signal, and 12 A/D of MSP430F149 inside are used in the A/D conversion.Adopt storage battery power supply, when linking to each other, can transfer the host computer power supply to host computer, and to charge in batteries.Adopt two kinds of communication modes of RS232/RS485, two kinds of shared DB9 mouths of communication mode are discerned concrete communication mode automatically.Reception by incompatible realization simulating signal of the soldering group of several Zero-ohm resistors or digital signal.Expand outside FLASH storer, can store historical data, be uploaded to host computer.The utlity model has the battery voltage detection function, the LED charactron is adopted in the demonstration among the embodiment, and the software dish provides Man Machine Interface.

Claims (1)

1. the humiture instrument based on the MSP430 single-chip microcomputer comprises control module, thermal module, humidity module, RS232 communication module, RS485 communication module, alarm module, power module and supply voltage measurement module; It is characterized in that:
Thermal module and humidity module are connected with A/D thief hatch signal in the control module respectively, and the RS232 communication module is connected with universal asynchronous serial interface signal in the control module respectively with the RS485 communication module; Alarm module is connected with I/O mouth signal in the control module respectively with the supply voltage measurement module; Power module is control module, thermal module, humidity module, RS232 communication module, RS485 communication module and the power supply of supply voltage measurement module.
CN2010200493985U 2010-01-05 2010-01-05 Thermohygrograph based on MSP430 single-chip computer Expired - Fee Related CN201583353U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010200493985U CN201583353U (en) 2010-01-05 2010-01-05 Thermohygrograph based on MSP430 single-chip computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010200493985U CN201583353U (en) 2010-01-05 2010-01-05 Thermohygrograph based on MSP430 single-chip computer

Publications (1)

Publication Number Publication Date
CN201583353U true CN201583353U (en) 2010-09-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010200493985U Expired - Fee Related CN201583353U (en) 2010-01-05 2010-01-05 Thermohygrograph based on MSP430 single-chip computer

Country Status (1)

Country Link
CN (1) CN201583353U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103714320A (en) * 2013-12-24 2014-04-09 杭州电子科技大学 Raster control circuit for spraying robot figure sampling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103714320A (en) * 2013-12-24 2014-04-09 杭州电子科技大学 Raster control circuit for spraying robot figure sampling
CN103714320B (en) * 2013-12-24 2017-02-08 杭州电子科技大学 Raster control circuit for spraying robot figure sampling

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100915

Termination date: 20130105