CN105021286A - Temperature measuring instrument - Google Patents
Temperature measuring instrument Download PDFInfo
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- CN105021286A CN105021286A CN201510400367.7A CN201510400367A CN105021286A CN 105021286 A CN105021286 A CN 105021286A CN 201510400367 A CN201510400367 A CN 201510400367A CN 105021286 A CN105021286 A CN 105021286A
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- microprocessor
- temperature sensor
- temperature measuring
- measuring set
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Abstract
The invention discloses a temperature measuring instrument which comprises a microprocessor, an infrared temperature sensor, an environment temperature sensor, an LED displayer, a keyboard and a power supply module. The infrared temperature sensor, the environment temperature sensor, the LED displayer and the keyboard are connected with the microprocessor; and the power supply module is connected with the microprocessor and provides power for the microprocessor. The temperature measuring instrument is simple in overall structure, convenient to realize and low in cost. When used, the temperature measuring instrument measures the temperature on the surface of industrial equipment through a non-contact mode, and can carry out integrated analysis according to the environment where the industrial equipment locates, so that measurement is done conveniently, and measurement precision can be guaranteed.
Description
Technical field
The present invention relates to temperature measuring equipment, specifically temperature measuring set.
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 temperature measuring set measuring precision can be ensured.
The present invention solves the problem and is achieved through the following technical solutions: temperature measuring set, comprise microprocessor, infrared temperature sensor, environment temperature sensor, light-emitting diode display, keyboard and power module, described infrared temperature sensor, environment temperature sensor, light-emitting diode display and keyboard are all connected with microprocessor, 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 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, amplifier is provided with between described environment temperature sensor and microprocessor.
Further, described amplifier adopts TLC4502ID amplifier chip.
Further, temperature measuring set, 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, temperature measuring set, comprise microprocessor, infrared temperature sensor, environment temperature sensor, light-emitting diode display, keyboard, RS232 converter and power module, wherein, infrared temperature sensor, environment temperature sensor, light-emitting diode display, keyboard and RS232 converter are all connected with microprocessor, 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 amplifier between the environment temperature sensor of the present embodiment and microprocessor, amplifier adopts TLC4502ID amplifier chip.
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 (8)
1. temperature measuring set, it is characterized in that, comprise microprocessor, infrared temperature sensor, environment temperature sensor, light-emitting diode display, keyboard and power module, described infrared temperature sensor, environment temperature sensor, light-emitting diode display and keyboard are all connected with microprocessor, and described power module is connected with microprocessor and is microprocessor power supply.
2. temperature measuring set according to claim 1, is characterized in that, is provided with amplifier between described environment temperature sensor and microprocessor.
3. temperature measuring set according to claim 2, is characterized in that, described amplifier adopts TLC4502ID amplifier chip.
4. temperature measuring set according to claim 1, is characterized in that, also comprises RS232 converter, and described RS232 converter is connected with microprocessor.
5. temperature measuring set according to claim 1, is characterized in that, described RS232 converter adopts MAX232 chip.
6. temperature measuring set according to claim 1, is characterized in that, described infrared sensor adopts MLX90614 chip.
7. temperature measuring set according to claim 1, is characterized in that, described environment temperature sensor adopts LM75CIM5 chip.
8. according to the temperature measuring set in claim 1 ~ 7 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 |
|---|---|---|---|
| CN201510400367.7A CN105021286A (en) | 2015-07-10 | 2015-07-10 | Temperature measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400367.7A CN105021286A (en) | 2015-07-10 | 2015-07-10 | Temperature measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105021286A true CN105021286A (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510400367.7A Pending CN105021286A (en) | 2015-07-10 | 2015-07-10 | Temperature measuring instrument |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614591A (en) * | 2009-07-21 | 2009-12-30 | 太原理工大学 | A kind of device for detecting temperature that is used for high voltage isolation switch contact |
| 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 |
| CN204924446U (en) * | 2015-07-10 | 2015-12-30 | 四川奇胜科技有限公司 | Infrared thermodetector |
-
2015
- 2015-07-10 CN CN201510400367.7A patent/CN105021286A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614591A (en) * | 2009-07-21 | 2009-12-30 | 太原理工大学 | A kind of device for detecting temperature that is used for high voltage isolation switch contact |
| 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 |
| CN204924446U (en) * | 2015-07-10 | 2015-12-30 | 四川奇胜科技有限公司 | Infrared thermodetector |
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Application publication date: 20151104 |