CN203224305U - Temperature measuring and alarming device - Google Patents
Temperature measuring and alarming device Download PDFInfo
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- CN203224305U CN203224305U CN 201320143915 CN201320143915U CN203224305U CN 203224305 U CN203224305 U CN 203224305U CN 201320143915 CN201320143915 CN 201320143915 CN 201320143915 U CN201320143915 U CN 201320143915U CN 203224305 U CN203224305 U CN 203224305U
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Abstract
The utility model provides a temperature measuring and alarming device, comprises a signal acquiring unit, a setting unit, a crystal oscillation resetting circuit, a controlling unit, a displaying unit, and an alarming unit, wherein the signal acquiring unit is connected with an input terminal of the controlling unit; the setting unit and the crystal oscillation resetting circuit are connected with the controlling unit; the controlling unit transmits acquired signals to the displaying unit; and the alarming unit is connected with the controlling unit. According to the temperature measuring and alarming device, the setting unit can be used to adjust the temperature and when the temperature reaches a set upper limit or lowers down below a lower limit, a light emitting diode gives an alarm through emitting light.
Description
Technical field
The utility model relates to test panalarm field, relates in particular to a kind of temperature test warning device.
Background technology
Embedded microcontroller, the abbreviation MCU of English alphabet commonly used represents single-chip microcomputer, and single-chip microcomputer claims single chip microcontroller again, and it is not the chip of finishing some logic functions, but a computer system is integrated on the chip, become the requisite important tool of observation and control technology modernization.Single-chip microcomputer has advantages such as volume is little, function is strong, cost is low, wide application.Sensing system can be used widely in environmental monitoring, health care, space exploration, hazard prediction and other commercial uses.General device for monitoring temperature cost is difficult to go on a large scale to arrange monitoring device than higher.
Temperature sensor of the prior art, the basic function that realizes is probe temperature, and the function of temperature is not set, and in some special environment, needs temperature special, when surpassing uniform temperature or being lower than certain temperature, can cause certain loss.
Summary of the invention
A kind of temperature test warning device comprises signal gathering unit, the unit is set, crystal oscillator reset circuit, control module, display unit and alarm unit; Described signal gathering unit is connected with described control module input end; Describedly the unit is set and the crystal oscillator reset circuit is connected in described control module; Described control module is with the signal transmission and described display unit of gathering; Described alarm unit is connected in control module.
Further, described signal gathering unit is the single line intelligent temperature sensor; Described control module is single-chip microcomputer.
Further, described alarm unit is light emitting diode.
A kind of temperature test warning device circuit, described single line intelligent temperature sensor is DS18B20; Described single line intelligent temperature sensor interface DQ is connected in the P3.3 pin of described single-chip microcomputer, connects resistance between single line intelligent temperature sensor VCC interface and the DQ interface; Described crystal oscillator reset circuit is connected on the XTAL1 and XTAL2 pin of described single-chip microcomputer; Described display unit is LCD, D0～D7 of described LCD is connected single-chip microcomputer P0.0～P0.7 and P2.0～P2.2 interface respectively with RS, R/W and E interface, be connected with pull-up resistor between single-chip microcomputer and the LCD, be connected with described pull-up resistor respectively on the connecting line of described D0～D7 interface and P0.0～P0.7 interface; Described alarm unit light emitting diode is connected in described single-chip microcomputer P2.5 interface; The described unit that arranges is four buttons, and described button is connected to single-chip microcomputer P1.4～P1.7 interface, and four buttons are connected with pull-up resistor respectively.
The beneficial effects of the utility model: temperature test warning device of the present utility model, can regulate temperature by the unit is set, and can by button arrange temperature on roll off the production line, reach the warning purpose, when temperature reaches going up in limited time of setting and is lower than down in limited time the lumination of light emitting diode warning.
Description of drawings
Fig. 1 is the utility model temperature test warning system synoptic diagram;
Fig. 2 is the utility model temperature test warning circuit synoptic diagram.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, be a kind of system chart of temperature test warning device, this device comprises signal gathering unit 2, unit 7 is set, crystal oscillator reset circuit 3, control module 1, display unit 5 and alarm unit 6; Signal gathering unit 2 is connected with control module 1 input end; Unit 7 and crystal oscillator reset circuit 3 are set are connected in described control module 1; Control module 1 is transferred to display unit 5 with the signal of gathering; Alarm unit connects 6 and is connected to control module 1.
Be illustrated in figure 2 as the circuit of temperature test warning device, the signal gathering unit 2 in the temperature test warning device circuit is the single line intelligent temperature sensor; Control module 1 is single-chip microcomputer, and alarm unit 6 is light emitting diode, and the single line intelligent temperature sensor is DS18B20; Single line intelligent temperature sensor interface DQ connects the P3.3 pin of single-chip microcomputer, connects resistance 21 between the VCC interface of single line intelligent temperature sensor and the DQ interface; Crystal oscillator reset circuit 3 connects on the XTAL1 and XTAL2 pin of single-chip microcomputer; Crystal oscillator reset circuit 3 comprises electric capacity 31, electric capacity 32 and a crystal oscillator 33, and crystal oscillator 33 two ends are connected on the XTAL1 and XTAL2 pin of single-chip microcomputer, and electric capacity 31, electric capacity 32 1 ends connect crystal oscillator 33 two ends, electric capacity 31, electric capacity 32 other end ground connection; Display unit 5 is LCD, D0～D7 of described LCD and RS, R/W and E interface are connected P0.0～P0.7 and the P2.0～P2.2 interface of single-chip microcomputer respectively, be connected with pull-up resistor 4 between single-chip microcomputer and the LCD, be connected with pull-up resistor 41 pull-up resistors 42, pull-up resistor 43, pull-up resistor 44, pull-up resistor 45, pull-up resistor 46, pull-up resistor 47 and pull-up resistor 48 on the connecting line of described D0～D7 interface and P0.0～P0.7 interface respectively; Light emitting diode connects the P2.5 interface of single-chip microcomputer; It is four buttons 72 that unit 7 is set, and button 72 is connected to the P1.4～P1.7 interface of single-chip microcomputer, and four buttons 72 are connected with pull-up resistor 71 respectively, and the utility model shows by 72 pairs of high low temperature alarming values of four buttons of scanning or arranges; Two keys are realized showing; Three keys are realized arranging, and also have a high low temperature alarming value of key control to revise direction (increase or reduce).
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. a temperature test warning device is characterized in that, comprises signal gathering unit (2), unit (7) is set, crystal oscillator reset circuit (3), control module (1), display unit (5) and alarm unit (6); Described signal gathering unit (2) is connected with described control module (1) input end; Describedly unit (7) is set and crystal oscillator reset circuit (3) is connected in control module (1); Described alarm unit (6) is connected in control module (1).
2. temperature test warning device according to claim 1 is characterized in that, described signal gathering unit (2) is the single line intelligent temperature sensor; Described control module (1) is single-chip microcomputer.
3. temperature test warning device according to claim 1 is characterized in that, described alarm unit (6) is light emitting diode.
4. as claim 2 or 3 described temperature test warning devices, it is characterized in that described single line intelligent temperature sensor is DS18B20; Described single line intelligent temperature sensor interface DQ is connected in the P3.3 pin of described single-chip microcomputer, connects resistance (21) between single line intelligent temperature sensor VCC interface and the DQ interface; Described crystal oscillator reset circuit (3) is connected on the XTAL1 and XTAL2 pin of described single-chip microcomputer; Described display unit (5) is LCD, D0～D7 of described LCD is connected single-chip microcomputer P0.0～P0.7 and P2.0～P2.2 interface respectively with RS, R/W and E interface, be connected with pull-up resistor (4) between single-chip microcomputer and the LCD, be connected pull-up resistor (41) pull-up resistor (42), pull-up resistor (43), pull-up resistor (44), pull-up resistor (45), pull-up resistor (46), pull-up resistor (47) and pull-up resistor (48) respectively successively on the connecting line of described D0～D7 interface and P0.0～P0.7 interface; Described light emitting diode is connected in single-chip microcomputer P2.5 interface; The described unit (7) that arranges is four buttons (72), and described button (72) is connected to single-chip microcomputer P1.4～P1.7 interface, and four buttons (72) are connected with pull-up resistor (71) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320143915 CN203224305U (en) | 2013-03-27 | 2013-03-27 | Temperature measuring and alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320143915 CN203224305U (en) | 2013-03-27 | 2013-03-27 | Temperature measuring and alarming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203224305U true CN203224305U (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320143915 Expired - Fee Related CN203224305U (en) | 2013-03-27 | 2013-03-27 | Temperature measuring and alarming device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203224305U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289578A (en) * | 2016-07-22 | 2017-01-04 | 蚌埠大洋传感系统工程有限公司 | A kind of temperature sensor intelligent checking system |
| CN110379142A (en) * | 2019-07-02 | 2019-10-25 | 大唐微电子技术有限公司 | A kind of method, apparatus, computer storage medium and terminal for calibrating warning message |
-
2013
- 2013-03-27 CN CN 201320143915 patent/CN203224305U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289578A (en) * | 2016-07-22 | 2017-01-04 | 蚌埠大洋传感系统工程有限公司 | A kind of temperature sensor intelligent checking system |
| CN110379142A (en) * | 2019-07-02 | 2019-10-25 | 大唐微电子技术有限公司 | A kind of method, apparatus, computer storage medium and terminal for calibrating warning message |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20140327 |