CN101655394A - Wooden package temperature real-time detector - Google Patents
Wooden package temperature real-time detector Download PDFInfo
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- CN101655394A CN101655394A CN200810054216A CN200810054216A CN101655394A CN 101655394 A CN101655394 A CN 101655394A CN 200810054216 A CN200810054216 A CN 200810054216A CN 200810054216 A CN200810054216 A CN 200810054216A CN 101655394 A CN101655394 A CN 101655394A
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Abstract
The invention relates to a wooden package temperature real-time detector, which consists of a temperature probe, a shell and a control circuit arranged in the shell, wherein the temperature probe is connected with the control circuit in the shell through a cable; the control circuit consists of a sensor module, a current and voltage conversion module and a singlechip; the output port of the sensormodule is connected with the input port of the current and voltage conversion module in the shell through a cable; the output port of the current and voltage conversion module is connected with the input port of the singlechip; and the output port of the singlechip is connected with an input end of a microcomputer through a communication interface chip. The detector is scientific and reasonable in structural design, can monitor the temperature of a heat treatment storehouse in real time, accurately achieves the acquisition and transmission of temperature data, and has convenient management.
Description
Technical field
The invention belongs to the measurement and control of temperature field, especially a kind of Wooden package temperature real-time detector.
Background technology
The quarantine disposal route of having ratified to use in the plant quarantine measure international standard " wood package materials control criterion in the international trade " has thermal treatment (HT) and methyl bromide fumigation to handle (MB), the regulation wood package materials must according to the rules time and temperature carry out heat treated in the standard, and the timber central temperature need reach 56 ℃ and keep more than 30 minutes.The existing supervision that quarantine is handled to Wooden package is essentially artificial regulatory format, employing is buried the temperature probe mode underground and is detected the core temperature in handling timber, though this acquisition mode can be realized the measurement of core temperature, but still there is insoluble problem: (1). this kind pattern mainly adopts and manually reads measurement data, the data that read are difficult to keep continuity, make deal with data lose real-time, and initial during thermal treatment, stand-by time is difficult to control; (2). this kind pattern time owing to measurement data in heat treatment process is longer, and the survey crew workload is easy to fatigue more greatly, thereby error of omission, the misdescription phenomenon of frequent occurrence temperature data; (3). this kind type collection to the core temperature can not accomplish entirely accurate, and can't guarantee that the humidity in the heat treatment library in the heat treatment process reaches standard; (4). sampled assortment, thickness, water percentage and the probe of wooden unit of this kind pattern buried multiple factor affecting such as sealing underground.
In sum, artificial regulatory format can't be monitored in real time to the data in the heat treatment process, it supervises poor in timeliness, the supervision deficiency, can not guarantee accuracy, validity that Wooden package quarantine is handled, nor it is in short supply and solve the practical problems that, dispersion many because of process points and distance are brought to alleviate the quarantine supervision personnel; Increase the burden of enterprise, and be difficult to reach the purpose of tight supervision.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of Wooden package temperature real-time detector is provided, this detector can be monitored in real time, realizes the collection and the transmission of temperature data accurately, convenient management.
The present invention solves its technical matters and is achieved through the following technical solutions:
A kind of Wooden package temperature real-time detector, by temperature probe, housing with and the control circuit of interior installation constitute, temperature probe is by the control circuit in the cable connection housing, wherein said control circuit is made of sensor assembly, current/voltage modular converter and single-chip microcomputer, wherein the output port of sensor assembly connects the input port of current/voltage modular converter in the housing by cable, the output port of current/voltage modular converter connects input of single chip, and single machine output end connects the input end of microcomputer by communication interface chip.
And the model of described sensor assembly is XTR105.
And the model of described current/voltage modular converter is RCV420.
And described single-chip microcomputer has analog-digital conversion function, and its concrete model is PIC16F877.
And described temperature probe is a high-precision platinum resistor.
And the model of described communication interface chip is MAX232 or 75174.
Advantage of the present invention and beneficial effect are:
1. the control circuit of this Wooden package temperature real-time detector is by sensor assembly, current/voltage modular converter and single-chip microcomputer constitute, its annexation is: the output terminal of sensor assembly connects the input end of current/voltage modular converter in the housing by cable, the output terminal of current/voltage modular converter connects the input end of single-chip microcomputer, the output terminal of single-chip microcomputer connects the input end of microcomputer, the design of this control circuit has realized full-automatic temperature data acquisition and data transmission, avoided because of the influence of human factor, and can make temperature probe that heat treatment library is carried out the monitoring of efficient temperature data in real time the data processing.
2. the sensor assembly of this Wooden package temperature real-time detector can carry out the adjustment and the linearization process of measurement range to signal, makes the electric signal of output with actual temperature value good linear relationship be arranged in measurement range.
3. scientific structure design of the present invention is reasonable, can monitor the temperature of heat treatment library in real time, realizes the collection and the transmission of temperature data accurately, is a kind of more convenient Wooden package temperature real-time detector of managing.
Description of drawings
The structural representation that Fig. 1 is connected with microcomputer for the present invention;
Fig. 2 is a control circuit block scheme of the present invention.
Embodiment
The invention will be further described by specific embodiment below in conjunction with accompanying drawing, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of Wooden package temperature real-time detector, by temperature probe 1, housing 4 with and the control circuit 5 of interior installation constitute, its middle shell front is provided with switch 3, the control circuit that temperature probe connects in the housing by cable 2, temperature probe adopts high-precision platinum resistor as front-end probe, the sensing range of probe can reach-200 ℃-600 ℃, temperature coefficient TCR=3850ppm/ ℃, and signal is carried out the adjustment and the linearization process of measurement range with sensor assembly, make the electric signal of output in measurement range, good linear relationship be arranged with actual temperature value.Wherein said control circuit is by sensor assembly, current/voltage modular converter and single-chip microcomputer constitute, the model of sensor assembly is XTR105, the model of current/voltage modular converter is RCV420, single-chip microcomputer has analog-digital conversion function, its concrete model is PIC16F877, its annexation is: the output port of sensor assembly connects the input port of current/voltage modular converter in the housing by cable, the output port of current/voltage modular converter connects input of single chip, single machine output end connects the input end of microcomputer 6 by communication interface chip, the model of described communication interface chip is MAX232 or 75174, and what present embodiment adopted is the MAX232 communication interface chip.
Signal after sensor assembly of the present invention will be handled sends the current/voltage modular converter to, the current/voltage modular converter is converted to voltage signal with the current signal of sensor and it is sent on the input port with A/D translation function on the single-chip microcomputer, carries out corresponding data processing by single-chip microcomputer and by the MAX232 communication interface chip result is sent to microcomputer.The present invention adopts the single-chip microcomputer with analog-digital conversion function to carry out Based Intelligent Control as CPU (central processing unit), mainly finish signals collecting, with functions such as microcomputer communication, control in real time.
The present invention can rely on internet and control area net independently with computing machine, remote data processing system, forms whole Real-time Monitor Management network.Real-time control management can allow Wooden package temperature real-time detector be interconnected at computing machine with different structures and mode, and is simultaneously interconnected with a plurality of reference mark, adopts identical communication infrastructure agreement between them.
In the thermal treatment business, needs at professional decision rule, Wooden package temperature real-time detector is handled storehouse for each and is disposed two groups of totally four temperature probes, wherein two is " dry bulb " temperature, two is " wet bulb " temperature, and every temperature data is real-time transmitted to computing machine through RS-232 communication protocol.
Claims (6)
1. Wooden package temperature real-time detector, by temperature probe, housing with and the control circuit of interior installation constitute, temperature probe is by the control circuit in the cable connection housing, it is characterized in that: described control circuit is by sensor assembly, current/voltage modular converter and single-chip microcomputer constitute, wherein the output port of sensor assembly connects the input port of current/voltage modular converter in the housing by cable, the output port of current/voltage modular converter connects input of single chip, and single machine output end connects the input end of microcomputer by communication interface chip.
2. Wooden package temperature real-time detector according to claim 1 is characterized in that: the model of described sensor assembly is XTR105.
3. Wooden package temperature real-time detector according to claim 1 is characterized in that: the model of described current/voltage modular converter is RCV420.
4. Wooden package temperature real-time detector according to claim 1 is characterized in that: described single-chip microcomputer has analog-digital conversion function, and its concrete model is PIC16F877.
5. Wooden package temperature real-time detector according to claim 1 is characterized in that: described temperature probe is a high-precision platinum resistor.
6. Wooden package temperature real-time detector according to claim 1 is characterized in that: the model of described communication interface chip is MAX232 or 75174.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054216A CN101655394A (en) | 2008-08-22 | 2008-08-22 | Wooden package temperature real-time detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054216A CN101655394A (en) | 2008-08-22 | 2008-08-22 | Wooden package temperature real-time detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101655394A true CN101655394A (en) | 2010-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200810054216A Pending CN101655394A (en) | 2008-08-22 | 2008-08-22 | Wooden package temperature real-time detector |
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| CN (1) | CN101655394A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110545970A (en) * | 2017-03-14 | 2019-12-06 | 威廉·约翰·巴克斯特·赫弗南 | Wood heating system and method |
| CN111397748A (en) * | 2020-04-24 | 2020-07-10 | 向文军 | Wooden package heat treatment temperature recorder |
-
2008
- 2008-08-22 CN CN200810054216A patent/CN101655394A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110545970A (en) * | 2017-03-14 | 2019-12-06 | 威廉·约翰·巴克斯特·赫弗南 | Wood heating system and method |
| US11181318B2 (en) | 2017-03-14 | 2021-11-23 | The University Of Canterbury Of Ilam Road | Wood heating system and method |
| CN111397748A (en) * | 2020-04-24 | 2020-07-10 | 向文军 | Wooden package heat treatment temperature recorder |
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Open date: 20100224 |