CN105352548A - Temperature and humidity measuring device and method - Google Patents
Temperature and humidity measuring device and method Download PDFInfo
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- CN105352548A CN105352548A CN201510819360.9A CN201510819360A CN105352548A CN 105352548 A CN105352548 A CN 105352548A CN 201510819360 A CN201510819360 A CN 201510819360A CN 105352548 A CN105352548 A CN 105352548A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
An embodiment of the invention discloses a temperature and humidity measuring device and method and relates to the technical field of sensor control, and can solve the problem of cost and meanwhile, can widen the application prospect of the temperature and humidity measuring device. The device comprises a data acquisition module, a central processing module connected with the data acquisition module, an information display module connected with the central processing module and an alarm circuit module connected with the central processing module, wherein the central processing module comprises a DSP chip. The temperature and humidity measuring device and method are suitable for solving the problem of cost in temperature and humidity measuring and widening the application prospect.
Description
Technical field
The present invention relates to sensor and control control technology field, particularly relate to a kind of humiture measurement mechanism and method.
Background technology
In recent years, the aggravation of climate change has had a strong impact on production and the life of the people, especially, in agricultural planting and the industrial process manufactured, need the change of the humiture in implementing monitoring surrounding environment, the qualitative effects of height to product and crop of humiture is very large.Because the detection control of humiture is improper, us may be made to cause inestimable economic loss, intelligent control system is set in production environment and control and monitor the humiture in each environment, almost become one of necessary means of production.
But, due to the raising of the intelligence degree of all kinds of intelligent control system, can the data volume of analyzing and processing and complexity also in increase.This just needs to arrange more humiture measurement mechanism in the environment.If improve the density of setting of humiture measurement mechanism and measure granularity, the extra funds of cost must be needed to purchase more humiture measurement mechanism.Because high-precision measurement mechanism is often expensive, for the consideration of controlling cost, while the density of setting of measurement mechanism, the reduction of measurement mechanism measuring accuracy can be caused.But the reduction of measuring accuracy is also unfavorable for the operation of whole system, finally still can cause the problem that the quality of product and crop declines.And be equipped with the scheme that the high-precision measurement mechanism of a small amount of movable type carries out tour inspection, the requirement of intelligent control system for real-time and promptness cannot be met especially.Therefore, due to Cost Problems, the application prospect of current humiture measurement mechanism is restricted.
Summary of the invention
Embodiments of the invention provide a kind of humiture measurement mechanism and method, can expand the application prospect of humiture measurement mechanism while workout cost problem.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, embodiments of the invention provide a kind of humiture measurement mechanism,
Data acquisition module, the central processing module be connected with described data acquisition module, the information display module be connected with described central processing module, the warning circuit module be connected with described central processing module, described central processing module comprises dsp chip; Described data acquisition module, for gathering the measuring-signal of the humiture in surrounding environment, and is converted to electric signal and sends to described central processing module; Described central processing module, for selecting corresponding threshold value according to described surrounding environment, when exceeding corresponding threshold value according to humiture in described electrical signal detection surrounding environment, sends alerting signal to described warning circuit module and described information display module; Described warning circuit module, for sending warning message; Described information display module, for display alarm prompting and the humiture of described surrounding environment.
Second aspect, embodiments of the invention provide a kind of temperature and humidity measurement method, for a kind of humiture measurement mechanism, it is characterized in that, comprise: data acquisition module, the central processing module be connected with described data acquisition module, the information display module be connected with described central processing module, the warning circuit module be connected with described central processing module, described central processing module comprises dsp chip, described dsp chip is MSP430F122, described Temperature Humidity Sensor is DHT11 Temperature Humidity Sensor chip, and described A/D converter is ADC0809; Described method comprises: by the measuring-signal of the humiture in data collecting module collected surrounding environment, and is converted to electric signal and sends to described central processing module, is shown the humiture of described surrounding environment by information display module simultaneously; Corresponding threshold value is selected according to described surrounding environment, when exceeding corresponding threshold value according to humiture in described electrical signal detection surrounding environment, send alerting signal to described warning circuit module and described information display module, and point out in information display module display alarm; Generate warning message according to described alerting signal and send.
The humiture measurement mechanism that the embodiment of the present invention provides and method, the MSP430F122 single-chip microcomputer adopted and DHT11 sensor have the advantages that processing capacity is powerful, travelling speed is fast, system works is stable, these 2 low energy-consumption electronic devices choose the precision and accuracy that ensure that humiture measurement mechanism image data, reduce energy consumption simultaneously, reduce volume.Relative to existing humiture measurement mechanism, while guarantee measuring accuracy, reduce buying and O&M cost, cost performance is higher than existing humiture measurement mechanism.The humiture measurement mechanism provided due to the embodiment of the present invention is again unibus serial communication, and system architecture is simple, has saved mcu resource, and has been easy to the Function Extension of system, therefore while workout cost problem, also extended application prospect.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the humiture measurement mechanism that Fig. 1 provides for the embodiment of the present invention;
The specific structural details schematic diagram of the humiture measurement mechanism that Fig. 2 provides for the embodiment of the present invention;
The process flow diagram of the temperature and humidity measurement method that Fig. 3 provides for the embodiment of the present invention.
Embodiment
For making those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Hereinafter will describe embodiments of the present invention in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording used in instructions of the present invention " comprises " and refers to there is described feature, integer, step, operation, element and/or assembly, but does not get rid of and exist or add other features one or more, integer, step, operation, element, assembly and/or their group.Should be appreciated that, when we claim element to be " connected " or " coupling " to another element time, it can be directly connected or coupled to other elements, or also can there is intermediary element.In addition, " connection " used herein or " coupling " can comprise wireless connections or couple.Wording "and/or" used herein comprises one or more arbitrary unit listing item be associated and all combinations.Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
The embodiment of the present invention provides a kind of humiture measurement mechanism, as shown in Figure 1, comprise: data acquisition module, the central processing module be connected with described data acquisition module, the information display module be connected with described central processing module, the warning circuit module be connected with described central processing module, described central processing module comprises dsp chip.
Described data acquisition module, for gathering the measuring-signal of the humiture in surrounding environment, and is converted to electric signal and sends to described central processing module.
Described central processing module, for selecting corresponding threshold value according to described surrounding environment, when exceeding corresponding threshold value according to humiture in described electrical signal detection surrounding environment, sends alerting signal to described warning circuit module and described information display module.
Described warning circuit module, for sending warning message.
Described information display module, for display alarm prompting and the humiture of described surrounding environment.
In the present embodiment, described dsp chip is MSP430F122, be the FLASH memory of 4KB and capacity is the RAM of 256B comprising 16 bit CPUs, RISC (reducedinstructionsetcomputer) order set, the timer of 16, serial communication interface, 3 parallel port P1, P2 and P3 mouths, 24 I/O mouth lines, capacity.
In the present embodiment, described data acquisition module comprises Temperature Humidity Sensor and A/D converter, and described Temperature Humidity Sensor connects described dsp chip by described A/D converter.
Described Temperature Humidity Sensor is DHT11 Temperature Humidity Sensor chip, and the measuring accuracy of temperature is 2 DEG C, and the measuring accuracy of humidity is 5.0%RH.Such as: have in DHT11 and calibrated digital signal and export Temperature Humidity Sensor chip, for by temperature sensing, humidity function i ntegration to a chip, integrated level is high, can measure humiture simultaneously.The measuring accuracy of its temperature is 2 DEG C, and the measuring accuracy of humidity is 5.0%RH, and have high reliability and remarkable stability, have extra small volume and ultralow power consumption, it is encapsulated as the single pin package of 4 pin, and signal transmission distance can reach more than 20 meters.
It should be noted that, DHT11 sensor contains the humiture compound sensor calibrated digital signal and export, the digital module acquisition technique of its application specific and temperature and humidity sensing technology, guarantees that device has high reliability and remarkable long-time stability.The parameter collected by sensor is converted to data via A/D and sends into after Single Chip Microcomputer (SCM) system carries out calculating, judges process, result is delivered to LED show, the storage of complete paired data simultaneously, and threshold value that can be different according to different environment sets, sound and light alarm is carried out to point out harm to the threshold value exceeded.In the present embodiment, by Porting embedded system in DSP, software merit rating can be completed, system is better optimized allocation of resources and coordinates the work between each task.
Described A/D converter is ADC0809, for successive comparison 8 tunnel analog input, 8 bit digital quantity export, comprises 28 pins, adopt dual-in-line package, by single+5V Power supply, a change-over period is 100 μ s, and is connected with the data bus of described MSP430F122.
Concrete, as shown in Figure 2, the information that information display module is used for humiture measurement mechanism exports and input, can comprise LED display, keyboard.Warning circuit module can be sound light alarming circuit and peripheral assembly.Wherein, warning circuit is supported to report to the police in 6 tunnels and is inputted, and reporting to the police and export in 3 tunnels, supports that delayed alarm filters, and group alarm filtration and programmable alarm filter.
The embodiment of the present invention provides a kind of temperature and humidity measurement method, and device as shown in Figure 1 and Figure 2 runs, and as shown in Figure 3, described method comprises:
101, by the measuring-signal of the humiture in data collecting module collected surrounding environment, and be converted to electric signal and send to described central processing module, shown the humiture of described surrounding environment simultaneously by information display module.
102, corresponding threshold value is selected according to described surrounding environment, when exceeding corresponding threshold value according to humiture in described electrical signal detection surrounding environment, send alerting signal to described warning circuit module and described information display module, and point out in information display module display alarm.
103, generate warning message according to described alerting signal and send.
Method carrying out practically flow process on device as shown in Figure 1 and Figure 2 of the present embodiment comprises:
Central processing module, using MSP430F122 as system dsp chip, adopts digital LED to be display device, and display interface is realized switching by " keypad " type button, coordinates DHT11 Temperature Humidity Sensor and relevant peripheral circuit composition detection system.All measurement operations can be realized by Host control software, the measuring-signal that Temperature Humidity Sensor detects, be electric signal through circuit conversion, then deliver to single-chip microcomputer by A/D conversion and carry out analyzing and processing, display device display is delivered to after system process, the data that testing staff can be shown by LED, understand the temperature and humidity change of surrounding enviroment in real time.Simultaneity factor adds the warm and humid angle value monitor that has sound and light of alarm, it can detect the concentration of humiture in air ambient, and the threshold value different according to different environment sets, if exceed given threshold value, startup acoustic-optic alarm is pointed out harm by system.
The humiture measurement mechanism that the embodiment of the present invention provides and method, the MSP430F122 single-chip microcomputer adopted and DHT11 sensor have the advantages that processing capacity is powerful, travelling speed is fast, system works is stable, these 2 low energy-consumption electronic devices choose the precision and accuracy that ensure that humiture measurement mechanism image data, reduce energy consumption simultaneously, reduce volume.Relative to existing humiture measurement mechanism, while guarantee measuring accuracy, reduce buying and O&M cost, cost performance is higher than existing humiture measurement mechanism.The humiture measurement mechanism provided due to the embodiment of the present invention is again unibus serial communication, and system architecture is simple, has saved mcu resource, and has been easy to the Function Extension of system, therefore while workout cost problem, also extended application prospect.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for apparatus embodiments, because it is substantially similar to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (4)
1. a humiture measurement mechanism, it is characterized in that, comprise: data acquisition module, the central processing module be connected with described data acquisition module, the information display module be connected with described central processing module, the warning circuit module be connected with described central processing module, described central processing module comprises dsp chip;
Described data acquisition module, for gathering the measuring-signal of the humiture in surrounding environment, and is converted to electric signal and sends to described central processing module;
Described central processing module, for selecting corresponding threshold value according to described surrounding environment, when exceeding corresponding threshold value according to humiture in described electrical signal detection surrounding environment, sends alerting signal to described warning circuit module and described information display module;
Described warning circuit module, for sending warning message;
Described information display module, for display alarm prompting and the humiture of described surrounding environment.
2. device according to claim 1, it is characterized in that, described dsp chip is MSP430F122, be the FLASH memory of 4KB and capacity is the RAM of 256B comprising 16 bit CPUs, RISC order set, the timer of 16, serial communication interface, 3 parallel port P1, P2 and P3 mouths, 24 I/O mouth lines, capacity.
3. device according to claim 2, is characterized in that, described data acquisition module comprises Temperature Humidity Sensor and A/D converter, and described Temperature Humidity Sensor connects described dsp chip by described A/D converter;
Described Temperature Humidity Sensor is DHT11 Temperature Humidity Sensor chip, and the measuring accuracy of temperature is 2 DEG C, and the measuring accuracy of humidity is 5.0%RH;
Described A/D converter is ADC0809, for successive comparison 8 tunnel analog input, 8 bit digital quantity export, comprises 28 pins, adopt dual-in-line package, by single+5V Power supply, a change-over period is 100 μ s, and is connected with the data bus of described MSP430F122.
4. a temperature and humidity measurement method, it is characterized in that, for a kind of humiture measurement mechanism, it is characterized in that, comprise: data acquisition module, the central processing module be connected with described data acquisition module, the information display module be connected with described central processing module, the warning circuit module be connected with described central processing module, described central processing module comprises dsp chip, described dsp chip is MSP430F122, described Temperature Humidity Sensor is DHT11 Temperature Humidity Sensor chip, and described A/D converter is ADC0809;
Described method comprises:
By the measuring-signal of the humiture in data collecting module collected surrounding environment, and be converted to electric signal and send to described central processing module, shown the humiture of described surrounding environment simultaneously by information display module;
Corresponding threshold value is selected according to described surrounding environment, when exceeding corresponding threshold value according to humiture in described electrical signal detection surrounding environment, send alerting signal to described warning circuit module and described information display module, and point out in information display module display alarm;
Generate warning message according to described alerting signal and send.
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| CN201510819360.9A CN105352548A (en) | 2015-11-20 | 2015-11-20 | Temperature and humidity measuring device and method |
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| CN201510819360.9A CN105352548A (en) | 2015-11-20 | 2015-11-20 | Temperature and humidity measuring device and method |
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| CN1587915A (en) * | 2004-07-09 | 2005-03-02 | 荆铭璞 | Multifunction environment monitor |
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| CN202748050U (en) * | 2012-05-11 | 2013-02-20 | 广东联塑科技实业有限公司 | Temperature and humidity sensor |
| CN203385446U (en) * | 2013-07-30 | 2014-01-08 | 大连民族学院 | SHT11 based digital relative humidity and temperature detecting instrument for laboratories |
| CN104048700A (en) * | 2014-06-25 | 2014-09-17 | 徐良贵 | Temperature and humidity measurement instrument |
| CN205138548U (en) * | 2015-11-20 | 2016-04-06 | 南京工程学院 | Temperature and humidity measuring apparatus |
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2015
- 2015-11-20 CN CN201510819360.9A patent/CN105352548A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587915A (en) * | 2004-07-09 | 2005-03-02 | 荆铭璞 | Multifunction environment monitor |
| CN102550371A (en) * | 2011-11-15 | 2012-07-11 | 无锡科技职业学院 | System and method for internet-of-things technology based automatic irrigation control for districts or villas |
| CN202748050U (en) * | 2012-05-11 | 2013-02-20 | 广东联塑科技实业有限公司 | Temperature and humidity sensor |
| CN203385446U (en) * | 2013-07-30 | 2014-01-08 | 大连民族学院 | SHT11 based digital relative humidity and temperature detecting instrument for laboratories |
| CN104048700A (en) * | 2014-06-25 | 2014-09-17 | 徐良贵 | Temperature and humidity measurement instrument |
| CN205138548U (en) * | 2015-11-20 | 2016-04-06 | 南京工程学院 | Temperature and humidity measuring apparatus |
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Application publication date: 20160224 |