CN203338169U - A multi-point temperature measuring and controlling device - Google Patents
A multi-point temperature measuring and controlling device Download PDFInfo
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- CN203338169U CN203338169U CN2013203394684U CN201320339468U CN203338169U CN 203338169 U CN203338169 U CN 203338169U CN 2013203394684 U CN2013203394684 U CN 2013203394684U CN 201320339468 U CN201320339468 U CN 201320339468U CN 203338169 U CN203338169 U CN 203338169U
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Abstract
The utility model discloses a multi-point temperature measuring and controlling device comprising a controller. The controller is connected with a mode selecting switch, a toggle switch, a testing pedestal, a LCD display, a temperature sensor array, and a relay array connected with a heater array. The multi-point temperature measuring and controlling device is capable of simultaneously detecting the temperature of different geographically-dispersed monitoring places, displaying the temperature on a LCD display screen, and performing temperature control according to a temperature setting value. The multi-point temperature measuring and controlling device has multiple functions and flexible use. The temperature sensor array is connected with a single chip microcomputer via a single bus so as to greatly simplify system wiring, increase reliability, and reduce cost.
Description
Technical field
The utility model relates to multi-point temp observation and control technology and single-chip microcomputer control technology, and what be specifically related to is a kind of multi-point temp measure and control device.
Background technology
Temperature is one of controlled parameter main in Industry Control, particularly, in the industry such as metallurgy, chemical industry, building materials, food, machinery, oil, has very important effect.Traditional temperature survey will be through the processing of a plurality of links, first by thermopair, temperature signal is converted to electric signal, through multipole operational amplification circuit, the electric signal shaping is amplified again, then be digital signal through the A/D conversion chip by analog signal conversion, send computing machine or digital signal processor processes.Along with developing rapidly of electronic technology and computer technology, microcomputer measurement and control technology have obtained development rapidly and application widely.Single-chip microcomputer has the advantages such as processing power is strong, travelling speed is fast, low in energy consumption, especially aspect temperature survey and control, controls simple and conveniently, and measurement range is wide, and precision is higher, is widely applied.The Novel digital type 1-wire temperature sensor occurs, makes temperature in-site measurement and sensor and processor interface become more easy.
The utility model content
The purpose of this utility model is to overcome the above problem that prior art exists, and a kind of multi-point temp measure and control device is provided, and can be applied to the industry spot multiple temperature measurement and control.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
A kind of multi-point temp measure and control device, comprise controller, and described controller connected mode selector switch, toggle switch, Test bench, LCD display, array of temperature sensor and relay array, described relay array are connected heater arrays.
Further, described controller is selected 8 AVR single chip computer AT mega16, described LCD display is selected the liquid crystal display LCD1602 of 2*16 character type, mode by parallel transmission between described controller and described LCD display is connected, one group of I/O port of described controller is connected with the 8 position datawire D0-D7 of described LCD1602, three I/O ports of described ATmega16 select port, data/command selection port to be connected with enable port, the read/write of described LCD1602, the external regulating circuit of bias voltage pin of described LCD1602.
Further, described array of temperature sensor is connected by unibus with described controller.
The beneficial effects of the utility model are:
The utility model can detect the temperature in the difference monitoring place of local position distribution simultaneously, send LCD display to show, and carries out temperature control according to desired temperature, and perfect function and use are flexibly.Array of temperature sensor adopts unibus to be connected with single-chip microcomputer, thereby has greatly simplified system wiring, has improved reliability, has reduced cost.
The accompanying drawing explanation
Fig. 1 one-piece construction schematic diagram.
Number in the figure explanation: 1, mode selector switch, 2, toggle switch, 3, Test bench, 4, controller, 5, LCD display, 6, array of temperature sensor, 7, relay array, 8, heater arrays.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Shown in Fig. 1, a kind of multi-point temp measure and control device, comprise controller 4, described controller 4 connected mode selector switch 1, toggle switch 2, Test bench 3, LCD display 5, array of temperature sensor 6 are connected heater arrays 8 with relay array 7, described relay array 7.
Further, described controller 4 is selected 8 AVR single chip computer AT mega16, described LCD display 5 is selected the liquid crystal display LCD1602 of 2*16 character type, mode by parallel transmission between described controller 4 and described LCD display 5 is connected, one group of I/O port of described controller 4 is connected with the 8 position datawire D0-D7 of described LCD1602, three I/O ports of described ATmega16 select port, data/command selection port to be connected with enable port, the read/write of described LCD1602, the external regulating circuit of bias voltage pin of described LCD1602.
Further, described array of temperature sensor 6 is connected by unibus with described controller 4.
The principle of work of the present embodiment is as follows:
Described mode selector switch 1 for selective system in test pattern or mode of operation, need only switch one end is connected to 4 one I/O ports of described controller during connection, other end ground connection gets final product, should make to be set up connecting resistance in described controller 4 these I/O ports during the program operation effective, when switch disconnects, port is high level, system works is in mode of operation, work as switch connection, port is low level, and system works is in test pattern.Under test pattern, temperature sensor is put as on described Test bench 3, and by described toggle switch 2 input position numberings, described controller reads this temperature sensor sequence number by program, and set up Position Number and sensor sequence number corresponding table, be stored in the E of AVR single-chip microcomputer
2pROM, so as when normal operation measure and control and use.Under mode of operation, described array of temperature sensor 6 gathers the each point temperature value, send described controller 4 to process, and described controller 4 is controlled the break-make of described relay array 7 according to desired temperature, to switch on and off heater arrays, to realize multi-point temp, controls.
Described toggle switch 2 and described Test bench 3 are for the sequence number of each temperature sensor of test under test pattern.
Described toggle switch 2 is one group of switch, connects successively on one group of I/O port of described controller 4, for the I/O port to described controller 4, inputs one group of low and high level.
Described Test bench 3 is the temperature sensor locking device, and three pin of temperature sensor are connected to power supply, ground wire and a single-chip processor i/o port.Numbered to described controller 4 input geographic position by described toggle switch 2 during test, read temperature sensor sequence number on described Test bench 3 by described controller 4, and set up Position Number and sensor sequence number corresponding table, be stored in the E of AVR single-chip microcomputer
2pROM, so as when normal operation measure and control and use.
Temperature sensor is selected single bus interface device DS18B20, and each temperature sensor that geographic position is disperseed is connected in the same data bus, forms array of temperature sensor.Itself and interface microcontroller are very simple, only an I/O port of ATmegal6 single-chip microcomputer is connected to unibus DQ the external pull-up resistor of DS18B20, then the vdd terminal of DS18B20 is connected to positive source, and the GND end ground connection of DS18B20 gets final product.Thereby greatly simplified system wiring, improved reliability, reduced cost.
Described heater arrays 8 is for heating production equipment to promote its temperature, and its each well heater disperseed by geographic position forms.
Each relay that described relay array 7 is disperseed by geographic position forms, and for being switched on or switched off each heater circuit, with the temperature that realizes each monitoring point, controls.During the system operation, described controller, according to actual temperature and the design temperature of each monitoring point, is switched on or switched off the corresponding relay of described relay array 7, to control respective heater break-make in described heater arrays 8, with the temperature that realizes each monitoring point, controls.
Claims (3)
1. a multi-point temp measure and control device, it is characterized in that: comprise controller (4), described controller (4) connected mode selector switch (1), toggle switch (2), Test bench (3), LCD display (5), array of temperature sensor (6) and relay array (7), described relay array (7) are connected heater arrays (8).
2. multi-point temp measure and control device according to claim 1, it is characterized in that: described controller (4) is selected 8 AVR single chip computer AT mega16, described LCD display (5) is selected the liquid crystal display LCD1602 of 2*16 character type, mode by parallel transmission between described controller (4) and described LCD display (5) is connected, one group of I/O port of described controller (4) is connected with the 8 position datawire D0-D7 of described LCD1602, three I/O ports of described ATmega16 and the enable port of described LCD1602, read/write is selected port, data/command selection port connects, the external regulating circuit of bias voltage pin of described LCD1602.
3. multi-point temp measure and control device according to claim 1, it is characterized in that: described array of temperature sensor (6) is connected by unibus with described controller (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203394684U CN203338169U (en) | 2013-06-13 | 2013-06-13 | A multi-point temperature measuring and controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203394684U CN203338169U (en) | 2013-06-13 | 2013-06-13 | A multi-point temperature measuring and controlling device |
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| Publication Number | Publication Date |
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| CN203338169U true CN203338169U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203394684U Expired - Fee Related CN203338169U (en) | 2013-06-13 | 2013-06-13 | A multi-point temperature measuring and controlling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103324219A (en) * | 2013-06-13 | 2013-09-25 | 苏州大学 | Multipoint temperature measurement and control device |
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2013
- 2013-06-13 CN CN2013203394684U patent/CN203338169U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103324219A (en) * | 2013-06-13 | 2013-09-25 | 苏州大学 | Multipoint temperature measurement and control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20150613 |
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| EXPY | Termination of patent right or utility model |