CN105004428A - Intelligent temperature measuring device - Google Patents
Intelligent temperature measuring device Download PDFInfo
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- CN105004428A CN105004428A CN201510400277.8A CN201510400277A CN105004428A CN 105004428 A CN105004428 A CN 105004428A CN 201510400277 A CN201510400277 A CN 201510400277A CN 105004428 A CN105004428 A CN 105004428A
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- microprocessor
- temperature measuring
- temperature sensor
- measuring equipment
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- 238000001514 detection method Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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Abstract
The invention discloses an intelligent temperature measuring device comprising a microprocessor, an infrared temperature sensor, an environment temperature sensor, an LED display, a keyboard, a digital-to-analog converter, a first amplifier and a power supply module, wherein the infrared temperature sensor, the environment temperature sensor, the LED display, the keyboard and the digital-to-analog converter are respectively connected with the microprocessor; the first amplifier is connected with the digital-to-analog converter; and the power supply module is connected with the microprocessor and supplies power to the microprocessor. The intelligent temperature measuring device is simple in structure, convenient to realize and low in cost; a non-contact mode is adopted for industrial equipment surface temperature detection when the intelligent temperature measuring device is used, and comprehensive analysis is carried out according to the environment where the industrial equipment is placed, the detection is convenient, and the measurement precision is ensured.
Description
Technical field
The present invention relates to temperature measuring equipment, specifically intelligent temperature measuring equipment.
Background technology
Temperature is one of important parameter determining state of matter, and its Measurement & Control occupies very consequence in national defence, military affairs, scientific research and industrial and agricultural production.In the industrial production, we carry out the operation conditions of monitoring equipment usually by the temperature on measuring equipment surface, and the commercial unit in modern times runs often under the dangerous situation such as high voltage, big current, the method that tradition relies on human contact's formula to detect both was lost time, manpower, again with certain danger.How to carry out non-contact detection to the temperature on commercial unit surface, and ensure the precision detecting data, this becomes current people's question of common concern.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of employing contactless mode and commercial unit surface temperature is detected, and the intelligent temperature measuring equipment measuring precision can be ensured.
The present invention solves the problem and is achieved through the following technical solutions: intelligent temperature measuring equipment, comprise microprocessor, infrared temperature sensor, environment temperature sensor, light-emitting diode display, keyboard, digital to analog converter, the first amplifier and power module, described infrared temperature sensor, environment temperature sensor, light-emitting diode display, keyboard and digital to analog converter are all connected with microprocessor, described first amplifier is connected with digital to analog converter, and described power module is connected with microprocessor and is microprocessor power supply.When the present invention applies, infrared temperature sensor is for detecting the temperature on commercial unit surface, environment temperature sensor is for detecting the temperature of environment residing for commercial unit, the signal input microprocessor that infrared temperature sensor and environment temperature sensor detect, the commercial unit surface temperature detected and environment temperature are shown on light-emitting diode display by after microprocessor process, light-emitting diode display is shown to observer intuitively the temperature value measured again.The data that sensor of the present invention collects are after microprocessor processes, control signal can be sent by microprocessor, the control signal that microprocessor sends changes simulating signal into through digital to analog converter, then carries out signal through the first amplifier and amplify backward controlled well heater or refrigeratory and send steering order.The present invention utilizes infrared radiation temperature measurement technology, can carry out the real-time detection of non-contact detecting formula to the commercial unit run.
Further, described digital to analog converter adopts DAC0832 chip.
Further, described first amplifier adopts OP-07 chip.
Further, the second amplifier is provided with between described environment temperature sensor and microprocessor.
Further, described second amplifier adopts TLC4502ID amplifier chip.
Further, intelligent temperature measuring equipment, also comprises RS232 converter, and described RS232 converter is connected with microprocessor.The present invention, by RS232 converter, can make microprocessor carry out serial communication with PC easily, and can receive simultaneously or transmit the data sent here outside.
Further, described RS232 converter adopts MAX232 chip.
Further, described infrared sensor adopts MLX90614 chip.
Further, described environment temperature sensor adopts LM75CIM5 chip.
Further, described microprocessor adopts STC89C51 single-chip microcomputer.
In sum, the present invention has following beneficial effect: (1) one-piece construction of the present invention is simple, be convenient to realize, cost is low, the present invention reaches by measuring the infrared radiation of commercial unit the object measuring commercial unit surface temperature, infrared radiation temperature measurement technology is utilized to carry out non-contact detecting, simple operation during detection commercial unit surface temperature; The present invention is also equipped with environment temperature sensor to detect the temperature of environment residing for commercial unit, is beneficial to microprocessor and comprehensively analyzes, and can promote measurement precision of the present invention, and then make the present invention easy to utilize.
(2) features such as the present invention has dependable performance, thermometric is accurate, structure is simple, cheap, and have the advantages such as circuit is simple and direct, use is flexible, anti-interference is good, portability is strong concurrently, therefore, be also convenient to apply in Other Engineering.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention's specific embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing, detailed description is further done to the present invention, but embodiments of the present invention are not limited thereto.
Embodiment:
As shown in Figure 1, intelligent temperature measuring equipment, comprise microprocessor, infrared temperature sensor, environment temperature sensor, light-emitting diode display, keyboard, digital to analog converter, the first amplifier, RS232 converter and power module, wherein, infrared temperature sensor, environment temperature sensor, light-emitting diode display, keyboard, digital to analog converter and RS232 converter are all connected with microprocessor, and the first amplifier is connected with digital to analog converter, and power module is connected with microprocessor and is microprocessor power supply.The environment temperature sensor of the present embodiment adopts LM75CIM5 chip, microprocessor adopts STC89C51 single-chip microcomputer, STC89C51 single-chip microcomputer has in-system programmable components (ISP) characteristic, purchase universal programmer can be saved like this, it can download/burning user program in custom system, single-chip microcomputer need not be pulled down from the product produced, can design while perfect for some still unshaped designs, accelerate design rate, decrease some software defect risks, operation result is seen owing to program can be directly downloaded into single-chip microcomputer in the goal systems of user, therefore need not emulator.The infrared sensor of the present embodiment adopts MLX90614 chip, built-in 16 bit digital signal processors of MLX90614 and sensor head, and integral lens and other treatment circuits, resolution is high, low in energy consumption.Because RS232 generating positive and negative voltage carrys out presentation logic state, and TTL low and high level carrys out presentation logic state, therefore, in order to connect with the TTL device of PC interface or terminal, level conversion must be carried out between RS232 and Transistor-Transistor Logic level.The RS232 converter of the present embodiment adopts MAX232 chip, it comprises the IC chip of two-way receiver and driver, be applicable to various EIA-232C and communication interface V.28/V.24, MAX232 chip internal has a voltage changer, + 5V the supply voltage inputted can be for conversion into the voltage needed for RS232 institute output level, therefore, it can complete the conversion of TTL to EIA bidirectional level.Be provided with the second amplifier between the environment temperature sensor of the present embodiment and microprocessor, the second amplifier adopts TLC4502ID amplifier chip.The digital to analog converter of the present embodiment adopts DAC0832 chip, and this chip is the D/A integrated chip of 8 bit resolutions, completely compatible with microprocessor, has the advantages such as cheap, interface is simple, conversion and control is easy.Because DAC0832 is a kind of current-output type D/A chip, therefore termination first amplifier forms anti-phase output circuit to realize voltage signal output thereafter.First amplifier of the present embodiment adopts OP-07 chip, and its open-loop gain and common-mode rejection ratio are very high, and offset voltage and offset current, temperature drift and noise are very little, can ensure the stability that the present embodiment outputs signal.
Kernel because of STC89C51 is powered as 5v, and the supply voltage of infrared temperature sensor in the present embodiment, environment temperature sensor, light-emitting diode display, keyboard all can be 5V, so external input voltage is converted to the single-chip microcomputer operating voltage of 5V by the power module of the present embodiment, so, the device in the present embodiment all can adopt power module to power.
The keyboard of the present embodiment adopts 1 × 8 determinant keyboard.Its principle of work is: microprocessor, by the continuous keyboard scan of working procedure, has checked whether that key is pressed, when having scanned key and having pressed, found out the key assignments pressed through routine processes, and calls the key operation that corresponding key operation program completes correspondence.The light-emitting diode display of the present embodiment adopts the mode of Dynamic Announce, and it is made up of two panels 74HC164 and 88 sections of LED charactrons.The keyboard of the present embodiment adopts the mode of dynamic scan, and keyboard scanning circuit output terminal and light-emitting diode display segment encode control port share the output Q0 ~ Q7 of 74HC164, reduces taking more I/O mouth like this.
Above content is the further description done the present invention in conjunction with concrete preferred implementation, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments drawn under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (10)
1. intelligent temperature measuring equipment, it is characterized in that, comprise microprocessor, infrared temperature sensor, environment temperature sensor, light-emitting diode display, keyboard, digital to analog converter, the first amplifier and power module, described infrared temperature sensor, environment temperature sensor, light-emitting diode display, keyboard and digital to analog converter are all connected with microprocessor, described first amplifier is connected with digital to analog converter, and described power module is connected with microprocessor and is microprocessor power supply.
2. intelligent temperature measuring equipment according to claim 1, is characterized in that, described digital to analog converter adopts DAC0832 chip.
3. intelligent temperature measuring equipment according to claim 1, is characterized in that, described first amplifier adopts OP-07 chip.
4. intelligent temperature measuring equipment according to claim 1, is characterized in that, is provided with the second amplifier between described environment temperature sensor and microprocessor.
5. intelligent temperature measuring equipment according to claim 4, is characterized in that, described second amplifier adopts TLC4502ID amplifier chip.
6. intelligent temperature measuring equipment according to claim 1, is characterized in that, also comprises RS232 converter, and described RS232 converter is connected with microprocessor.
7. intelligent temperature measuring equipment according to claim 1, is characterized in that, described RS232 converter adopts MAX232 chip.
8. intelligent temperature measuring equipment according to claim 1, is characterized in that, described infrared sensor adopts MLX90614 chip.
9. intelligent temperature measuring equipment according to claim 1, is characterized in that, described environment temperature sensor adopts LM75CIM5 chip.
10. according to the intelligent temperature measuring equipment in claim 1 ~ 9 described in any one, it is characterized in that, described microprocessor adopts STC89C51 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400277.8A CN105004428A (en) | 2015-07-10 | 2015-07-10 | Intelligent temperature measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400277.8A CN105004428A (en) | 2015-07-10 | 2015-07-10 | Intelligent temperature measuring device |
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| CN105004428A true CN105004428A (en) | 2015-10-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973476A (en) * | 2016-07-28 | 2016-09-28 | 安徽精鑫汽车电子电器有限公司 | Infrared temperature measuring table |
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|---|---|---|---|---|
| GB2343245B (en) * | 1998-10-31 | 2001-05-02 | Lg Electronics Inc | Temperature sensing circuit using thermopile sensor |
| US20090182526A1 (en) * | 2008-01-16 | 2009-07-16 | Welch-Allyn, Inc. | Guiding ir temperature measuring device with probe cover |
| CN101614591A (en) * | 2009-07-21 | 2009-12-30 | 太原理工大学 | A temperature monitoring device for high voltage isolating switch contacts |
| CN202563781U (en) * | 2012-05-22 | 2012-11-28 | 张鹏 | Single chip microcomputer experimental system |
| CN202903334U (en) * | 2012-11-27 | 2013-04-24 | 宁波电业局 | Cable intermediate joint temperature monitoring system |
| CN104457996A (en) * | 2013-09-14 | 2015-03-25 | 孙仁 | Infrared temperature measurer |
| CN204924447U (en) * | 2015-07-10 | 2015-12-30 | 四川奇胜科技有限公司 | Multi -functional intelligent temperature measurement device |
-
2015
- 2015-07-10 CN CN201510400277.8A patent/CN105004428A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2343245B (en) * | 1998-10-31 | 2001-05-02 | Lg Electronics Inc | Temperature sensing circuit using thermopile sensor |
| US20090182526A1 (en) * | 2008-01-16 | 2009-07-16 | Welch-Allyn, Inc. | Guiding ir temperature measuring device with probe cover |
| CN101614591A (en) * | 2009-07-21 | 2009-12-30 | 太原理工大学 | A temperature monitoring device for high voltage isolating switch contacts |
| CN202563781U (en) * | 2012-05-22 | 2012-11-28 | 张鹏 | Single chip microcomputer experimental system |
| CN202903334U (en) * | 2012-11-27 | 2013-04-24 | 宁波电业局 | Cable intermediate joint temperature monitoring system |
| CN104457996A (en) * | 2013-09-14 | 2015-03-25 | 孙仁 | Infrared temperature measurer |
| CN204924447U (en) * | 2015-07-10 | 2015-12-30 | 四川奇胜科技有限公司 | Multi -functional intelligent temperature measurement device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973476A (en) * | 2016-07-28 | 2016-09-28 | 安徽精鑫汽车电子电器有限公司 | Infrared temperature measuring table |
| CN105973476B (en) * | 2016-07-28 | 2019-08-13 | 六安皖智知识产权运营有限公司 | A kind of infrared thermometry platform |
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Application publication date: 20151028 |