CN102566617A - Microcomputer matrix temperature control device - Google Patents
Microcomputer matrix temperature control device Download PDFInfo
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- CN102566617A CN102566617A CN2011104360248A CN201110436024A CN102566617A CN 102566617 A CN102566617 A CN 102566617A CN 2011104360248 A CN2011104360248 A CN 2011104360248A CN 201110436024 A CN201110436024 A CN 201110436024A CN 102566617 A CN102566617 A CN 102566617A
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Abstract
A microcomputer matrix temperature control device uses an 8031 single chip microcomputer as a main machine. The 8031 single chip microcomputer is respectively connected with an 8-k byte EPROM-2764 which serves as a data memory, an 8-bit input analog-to-digital (A/D) converter 0809, an input/output (I/O) port chip 8155 programmable parallel I/O expanding port, an 8-bit light-emitting diode (LED) digital displayer, an input keyboard, a PP40 printer, an alarm device and a single chip microcomputer. The 8-bit input A/D converter 0809 is connected with two multi-path analogue switches CC4051 which pass through an amplifier, and an 8*8 matrix sensor temperature sensing circuit is formed by the two multi-path analogue switches CC4051. The measurement control device can achieve measurement of multi-point different areas, has a single passage and measures in circulation mode. The microcomputer matrix temperature control device has an over-temperature alarm and automatic control function, and when the temperature exceeds a set value, the system controls a relay to close a heating device. The microcomputer matrix temperature control device is high in reliability, has the capability of resisting, avoiding and eliminating interference and ensures stable working of the system.
Description
Technical field:
The invention belongs to measurement and control of temperature, particularly a kind of microcomputer matrix attemperating unit.
Background technology:
Temperature survey is in industry, agricultural, and industries such as national defence have a wide range of applications, and along with science and technology development is more and more high to thermometric accuracy requirement.Sometimes the temperature signal of the distant place of the observing and controlling of temperature needs transmission.Each signal wire transmits temperature signal, and control line selects point for measuring temperature and power lead thereof to connect together, and constitutes a huge tree network.Under usual condition, this thermometric mode can operate as normal, but many at temperature spot, at a distance of far, and particularly in the stronger place of electromagnetic interference (EMI), this system is difficult to operate as normal.
Summary of the invention:
Technical matters to be solved by this invention is: a kind of microcomputer matrix attemperating unit is provided.Can reach the observing and controlling simultaneously of long-range many measuring control points.Reliability is high, has antijamming capability and avoids, eliminates interference capability, can guarantee system's smooth working.
Technical scheme of the present invention is:
A kind of microcomputer matrix attemperating unit is characterized in that: with 8031 single-chip microcomputers is main frame, and 8031 single-chip microcomputers connect 8K byte EPROM-2764 as data-carrier store; 8031 single-chip microcomputers connect 8 input a/d converters 0809; 8031 single-chip microcomputers connect I/O interface chip 8155 programmable parallel I/O expansion interfaces; 8031 single-chip microcomputers connect 8 LED digital indicators; 8031 single-chip microcomputers connect input keyboard; 8031 single-chip microcomputers connect the PP40 printer; 8031 single-chip microcomputers connect warning device; 8031 single-chip microcomputers connect; 8 input a/d converters 0809 connect through two multiway analog switch CC4051 of amplifier; Two multiway analog switch CC4051 form 8*8 matrix sensor temperature sensing circuit.
Effect of the present invention is:
This measuring and controlling can realize the measurement of multiple spot (8 point) zones of different, single channel, and circulation is measured.Also have overtemperature alarm and automatic control function, when temperature surpassed a certain setting value, system's pilot relay cut out warming-up device.Reliability is high, and will have antijamming capability and avoid, eliminate interference capability, guarantees system's smooth working.
Description of drawings:
Fig. 1 is the structural representation of microcomputer matrix attemperating unit.
Fig. 2 is the structural representation of microcomputer matrix attemperating unit.
Embodiment:
A kind of microcomputer matrix attemperating unit as shown in Figure 1 is a main frame with 8031 single-chip microcomputers, and 8031 single-chip microcomputers connect 8K byte EPROM-2764 as data-carrier store; 8031 single-chip microcomputers connect 8 input a/d converters 0809; 8031 single-chip microcomputers connect I/O interface chip 8155 programmable parallel I/O expansion interfaces; 8031 single-chip microcomputers connect 8 LED digital indicators; 8031 single-chip microcomputers connect input keyboard; 8031 single-chip microcomputers connect the PP40 printer; 8031 single-chip microcomputers connect warning device; 8031 single-chip microcomputers connect; 8 input a/d converters 0809 connect through two multiway analog switch CC4051 of amplifier; Two multiway analog switch CC4051 form 8*8 matrix sensor temperature sensing circuit.
As shown in Figure 2 is that application example is on-the-spot measured through sensor, and the multiway analog switch CC4051 that amplifier connects microcomputer matrix attemperating unit forms 8*8 matrix sensor temperature sensing circuit.The observing and controlling that realization is measured to the scene.
Design proposal:
Single-chip microcomputer carries out temperature data acquisition as the forward position machine; Method with single-chip microcomputer and microcomputer communication is sent temperature data back to; Constitute the distributed PC that is specially adapted to use and measure temperature system, and the temperature data that can utilize temperature sensor to send back to is monitored.
Principle of work: TT&C system is the system that on-the-spot 8*8 matrix sensor is sampled that is made up of single-chip microcomputer, is that Keyboard Control is arranged, displays temperature and can print result, the detection system of automatic warning function when transfiniting.At first A/D converter carries out, samples No. 0 of 8*864 sensor, and sends into 8031 single-chip microcomputers to data and be shown on the display, and what this moment, display showed is the temperature of No. 0 sensor, just reports to the police if this temperature has surpassed specialized range.A/D converter shows that to 64 sensors are touring temperature value of every demonstration just compares like this, surpasses setting and just reports to the police.The temperature of when the temperature of No. 0 sensor shows, wanting to see No. nine sensors confirms just can see the temperature of No. 9 sensors just by 0.9, can print the result when adding by printing key.Native system is practical remote multi-point temp data logger system.This distributed frame constitutes an independently single chip computer measurement temperature system.
General introduction: temperature survey is in industry, agricultural, and industries such as national defence have a wide range of applications, and along with science and technology development is more and more high to thermometric accuracy requirement.Because limited its precision of design time of single-chip microcomputer is not very high, its temperature-measuring range can directly be applied in the less demanding various scenes of temperature accuracy between 0～100 ℃.
The single-chip microcomputer multichannel temperature is gathered TT&C system and is adopted the integrated temperature sensor satisfied temperature to measure; And convert temperature signal to electric current; Convert voltage signal into, finally transfer to mould/number conversion chip through amplifying circuit and convert digital signal to and handle and be shown in common anode charactron through output driving circuit through single-chip microcomputer.This measuring instrument can be realized the measurement of multiple spot (8 point) zones of different, single channel, and circulation is measured.Also have overtemperature alarm and automatic control function, when temperature surpassed a certain setting value, system's pilot relay cut out warming-up device.
The index of system:
1. with 8031 single-chip microcomputer construction systems, measure multi-point temp in the room, and show with charactron;
2. temperature-measuring range is-40 ℃～+ 60 ℃, temperature measurement error≤± 1 ℃, and when surpassing the temperature range of regulation, alarm indication, and can start the blower ventilation cooling;
3. measurement point is at least 64;
4. can communicate by letter with host computer, the print temperature function is arranged.
The composition of system: it is main frame that the room temperature TT&C system is selected 8031 single-chip microcomputers for use, because no program storage in the sheet, so be that core extends out 8K byte EPROM-2764 as data-carrier store with it.This system 74LS373 as address latch.8 input a/d converters 0809; I/O interface chip 8155 programmable parallel I/O expansion interfaces; 8255 is programmable parallel mouthful, and 8 LED digital indicators, keyboard under supporting by 8155 and 8255 import and PP40 printer warning device is realized the man-machine communication.System is with the AD590 integrated circuit temperature sensor, and two multiway analog switch CC4051 deliver to A/D converter through behind the amplifier, realizes 8*8 matrix sensor temperature sensing circuit.
Claims (1)
1. microcomputer matrix attemperating unit, it is characterized in that: with 8031 single-chip microcomputers is main frame, 8031 single-chip microcomputers connect 8K byte EPROM-2764 as data-carrier store; 8031 single-chip microcomputers connect 8 input a/d converters 0809; 8031 single-chip microcomputers connect I/O interface chip 8155 programmable parallel I/O expansion interfaces; 8031 single-chip microcomputers connect 8 LED digital indicators; 8031 single-chip microcomputers connect input keyboard; 8031 single-chip microcomputers connect the PP40 printer; 8031 single-chip microcomputers connect warning device; 8031 single-chip microcomputers connect; 8 input a/d converters 0809 connect through two multiway analog switch CC4051 of amplifier; Two multiway analog switch CC4051 form 8*8 matrix sensor temperature sensing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104360248A CN102566617A (en) | 2011-12-23 | 2011-12-23 | Microcomputer matrix temperature control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104360248A CN102566617A (en) | 2011-12-23 | 2011-12-23 | Microcomputer matrix temperature control device |
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| CN102566617A true CN102566617A (en) | 2012-07-11 |
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| CN2011104360248A Pending CN102566617A (en) | 2011-12-23 | 2011-12-23 | Microcomputer matrix temperature control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904916A (en) * | 2021-01-15 | 2021-06-04 | 小熊电器股份有限公司 | Drive circuit, method and device for realizing constant temperature of load |
Citations (6)
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| US5135045A (en) * | 1989-05-23 | 1992-08-04 | Samsung Electronics Co., Ltd. | Space temperature control system and control method thereof |
| CN1080741A (en) * | 1992-12-25 | 1994-01-12 | 南京航空航天大学 | Multi-channel intelligent damp-warm syndrome degree measurement and control instrument |
| CN2416808Y (en) * | 2000-04-19 | 2001-01-31 | 王洪彬 | Safety cabinet for storage of poisons |
| CN2733327Y (en) * | 2004-08-31 | 2005-10-12 | 中国科学院安徽光学精密机械研究所 | Totally digitalized multipoint temperature monitoring system based on intelligent temperature sensor |
| CN101739042A (en) * | 2008-11-24 | 2010-06-16 | 苏州市职业大学 | Singlechip-based networked temperature monitor |
| CN202394133U (en) * | 2011-12-23 | 2012-08-22 | 天津市东文浩达能源技术有限公司 | Microcomputer matrix temperature control device |
-
2011
- 2011-12-23 CN CN2011104360248A patent/CN102566617A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5135045A (en) * | 1989-05-23 | 1992-08-04 | Samsung Electronics Co., Ltd. | Space temperature control system and control method thereof |
| CN1080741A (en) * | 1992-12-25 | 1994-01-12 | 南京航空航天大学 | Multi-channel intelligent damp-warm syndrome degree measurement and control instrument |
| CN2416808Y (en) * | 2000-04-19 | 2001-01-31 | 王洪彬 | Safety cabinet for storage of poisons |
| CN2733327Y (en) * | 2004-08-31 | 2005-10-12 | 中国科学院安徽光学精密机械研究所 | Totally digitalized multipoint temperature monitoring system based on intelligent temperature sensor |
| CN101739042A (en) * | 2008-11-24 | 2010-06-16 | 苏州市职业大学 | Singlechip-based networked temperature monitor |
| CN202394133U (en) * | 2011-12-23 | 2012-08-22 | 天津市东文浩达能源技术有限公司 | Microcomputer matrix temperature control device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904916A (en) * | 2021-01-15 | 2021-06-04 | 小熊电器股份有限公司 | Drive circuit, method and device for realizing constant temperature of load |
| CN112904916B (en) * | 2021-01-15 | 2022-08-23 | 小熊电器股份有限公司 | Drive circuit, method and device for realizing constant temperature of load |
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Application publication date: 20120711 |