CN2396387Y - Micropower small multi-sectional temp measuring recorder - Google Patents
Micropower small multi-sectional temp measuring recorder Download PDFInfo
- Publication number
- CN2396387Y CN2396387Y CN 99247743 CN99247743U CN2396387Y CN 2396387 Y CN2396387 Y CN 2396387Y CN 99247743 CN99247743 CN 99247743 CN 99247743 U CN99247743 U CN 99247743U CN 2396387 Y CN2396387 Y CN 2396387Y
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- parameter input
- microcomputer
- data output
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Abstract
The utility model relates to a micropower small multi-sectional temperature measuring recorder, which belongs to the filed of computer electronic technology. The utility model is mainly characterized in that the utility model is composed of a microcomputer, a measurement sensor circuit, a data storage circuit, a set-up parameter input circuit and a recording data output circuit. The set-up parameter input circuit is provided with a set-up parameter input port, and the recording data output circuit is provided with a recording data output port. The utility model does not work with AC commercial power, and can carry out long time temperature measurement according to different time interval values and record and store the temperature values measured at each time of day. The utility model can be widely used in places where temperature measurement needs to be recorded.
Description
The utility model relates to the small-sized multistage temperature survey of a kind of little power consumption register, belongs to the computing machine electronic technology field.
Known to the applicant, and, there is not to find identical therewith invention through the information inquiry.The instrument of survey record temperature is generally made power supply with electric main, when AC outage now, instrument can not be worked, even the instrument that has can be measured displays temperature without alternating current, but can only show at that time, can not note each moment temperature value measured for a long time.
The purpose of this utility model is to provide the small-sized multistage temperature survey of a kind of little power consumption register, can measure temperature by different time interval values, and each moment temperature value measured recording storage is got off.
The purpose of this utility model is achieved in that microcomputer links to each other with the temperature probe circuit through the I/O mouth, link to each other with data storage circuitry through the serial data and bus, the resistance of the temperature-measuring thermistor of temperature probe circuit is different and different with the temperature of environment of living in, the charge-discharge circuit that thermistor and capacitor C are formed is charged to the used time of same level on capacitor C also just different, with another fixed resistance under same supply voltage, on same capacitor C, be charged to the difference of same used time of level, draw the temperature value of thermistor place environment through the microprocessor conversion of temperature probe circuit.An I/O mouth of microcomputer sends a positive level signal regularly for the light emitting diode of working indicating, make light emitting diode regularly once glittering at interval, working properly with the small-sized multistage temperature survey of this little power consumption of expression register, saved the power consumption during light emitting diode is disconnected again.Microcomputer links to each other respectively with the record data output circuit with the setup parameter input circuit by different I/O mouths, and the setup parameter input circuit has the setup parameter input port, and the record data output circuit has the record data output port.Microcomputer, temperature probe circuit, data storage circuitry, setup parameter input circuit, record data output circuit are all done the power supply power supply by dry cell.Each circuit chip is all selected the CMOS chip of little power consumption for use, and computing machine is by the program among the ROM of execution own, and control temperature probe circuit carries out temperature survey, and each temperature value stored record constantly in data storage circuitry.
Because adopt such scheme, the utility model has following advantage and good effect: make power supply with dry cell, not influenced by electric main.Use the low power consumption cmos device, work indication light emitting diode is interrupted glittering, saves electricity consumption.The setup parameter input port of setup parameter input circuit is connected with outer CPU 486 above computing machine RS232 serial ports, receives the thermometric setting of interval time, presses the different intervals thermometric as need, and sectional is provided with different thermometric values interval time.Program among the ROM of microcomputer execution own by the interval time of setting, is carried out temperature survey and store recording automatically.When needs are understood the temperature of observed and recorded, the output port of record data output circuit links to each other with outer CPU 486 above computing machine RS232 serial ports, can be on computer screen time one the temperature form or the curve of displayed record, connect printer as computing machine, then can come out form that shows on the screen and curve printing.Owing to the support of microcomputer software program is arranged, makes simple in structure, reliable and stable.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a theory diagram of the present utility model.
Microcomputer in Fig. 1 (1) is by different I/O mouth and temperature probe circuit (2), working indicating (4), setup parameter input circuit (5), record data output circuit (6) links to each other respectively, microcomputer (1) links to each other with data storage circuitry (3) by the serial data and bus, power supply (7) is received microcomputer (1), temperature probe circuit (2), data storage circuitry (3), setup parameter input circuit (5), record data output circuit (6), supply with working power, setup parameter input circuit (5) and record data output circuit (6) leave port A and B respectively, link to each other with outer CPU 486 above computing machine RS232 serial ports.
Fig. 2 is the circuit theory diagrams of the small-sized multistage temperature survey of the little power consumption of the utility model register, in conjunction with as follows to implementation of the present utility model:
Microcomputer (1) is IC1 ultra low-power microcontroller PIC16C84, link to each other respectively with temperature probe circuit (2), working indicating (4), setup parameter input circuit (5), record data output circuit (6) by different I/O mouths, link to each other with data storage circuitry (3) by the serial data and bus, IC1 realizes pressing different intervals and measures temperature and recording storage by the control of the realization of the program among the ROM of execution own to the each several part circuit.
Temperature probe circuit (2) is by the little power consumption microprocessor of IC2 PIC12C508; thermistor RT; fixed resistance R1; protective resistance R2; capacitor C forms; R1; RT; the end of R2 meets the RC constant pin RC of IC2 respectively; dynamic RC constant pin RM; detect pin TR; R1; RT; the other end of R2 connects together and links to each other with RC constant capacitor C; the other end ground connection of C; the resistance of thermistor RT is different and different with the temperature of RT environment of living in; the charge-discharge circuit that RT and capacitor C are formed is charged to the used time of same level on C also just different; with fixed resistance R1 under same supply voltage; on same capacitor C, be charged to same level; receive the detection pin TR of IC2 respectively through protective resistance R2, the time difference that is produced converts through IC2 and draws the temperature value of RT place environment.Two I/O mouths that the data preparation pin READY of IC2 and data output pin DO meet microcomputer IC1 respectively carry out temperature survey and transmission according to the program of IC1.
Data storage circuitry (3) is made up of the little power consumption EEPROM24LC16 of IC3, and IC3 links to each other with microcomputer IC1 by the serial data and bus, time one Temperature numerical that recording storage is measured.
Working indicating (4) is made up of resistance R 3 and light emitting diode D, the I/O mouth of resistance R 3 one termination IC1, the positive pole of other end sending and receiving optical diode D, the minus earth of D in the IC1 normal operating conditions, connects the I/O mouth of the IC1 of R3, regularly export a positive level at interval, make D glittering luminous, represent that the small-sized multistage temperature survey of this little power consumption register is working properly, saved the power consumption during D disconnects again.
Setup parameter input circuit (5) is made up of resistance R 4, resistance R 5, NPN triode T2, the grounded emitter of T2, collector connect the I/O mouth of IC1, and meet power supply V through resistance R 5, the end of base stage connecting resistance R4, the other end of R4 are setup parameter input port A.
Record data output circuit (6) is made up of resistance R 6, PNP triode T1, the I/O mouth of R6 one termination IC1, and the base stage of another termination T1, the emitter of T1 meets power supply V, and current collection is record data output port B very.
Power supply (7) is dry cell E, and the negativing ending grounding of E, anode V connect the power supply V end of microcomputer (1), temperature probe circuit (2), data storage circuitry (3), setup parameter input circuit (5), record data output circuit (6), supply with working power.
Claims (6)
1, the small-sized multistage temperature survey of a kind of little power consumption register, it is characterized in that microcomputer (1) links to each other with data storage circuitry (3) by the serial data and bus, by different I/O mouths and temperature probe circuit (2), working indicating (4), setup parameter input circuit (5), record data output circuit (6) links to each other respectively, power supply (7) is dry cell E, connect microcomputer (1), temperature probe circuit (2), data storage circuitry (3), setup parameter input circuit (5), the power supply V end of record data output circuit (6), setup parameter input circuit (5) has setup parameter input port A, record data output circuit (6) has record data output port B, microcomputer (1) carries out temperature survey and stores record by the program among the ROM of execution own.
2, the small-sized multistage temperature survey of little power consumption according to claim 1 register, it is characterized in that described microcomputer (1) is IC1 single-chip microcomputer PIC16C84, IC1 links to each other with data storage circuitry (3) by the serial data and bus, link to each other respectively with temperature probe circuit (2), working indicating (4), setup parameter input circuit (5), record data output circuit (6) by different I/O mouths, microcomputer (1) is controlled each circuit by the program among the ROM of execution own.
3; the small-sized multistage temperature survey of little power consumption according to claim 1 register; it is characterized in that described temperature probe circuit (2) is by microprocessor IC2; thermistor RT; fixed resistance R1; protective resistance R2; capacitor C forms; R1; RT; the end of R2 meets the RC constant pin RC of IC2 respectively; dynamic RC constant pin RM; detect pin TR; R1; RT; the other end of R2 connects together and links to each other with the end of capacitor C; the other end ground connection of C; two I/O mouths that the data preparation READY pin of IC2 and data output pin DO connect microcomputer (1) respectively carry out temperature survey and transmission according to the program of microcomputer (1).
4, the small-sized multistage temperature survey of little power consumption according to claim 1 register, it is characterized in that described working indicating (4) is made up of resistance R 3 and light emitting diode D, the I/O mouth of resistance R 3 one termination microprocessor (1) IC1, the positive pole of other end sending and receiving diode D, the minus earth of D.
5, the small-sized multistage temperature survey of little power consumption according to claim 1 register, it is characterized in that described setup parameter input circuit (5) is made up of resistance R 4, resistance R 5, NPN triode T2, the grounded emitter of T2, collector connects the I/O mouth of IC1, collector is the end of connecting resistance R5 also, another termination power V of R5, the end of the base stage connecting resistance R4 of T2, the other end of R4 are setup parameter input port A.
6, the small-sized multistage temperature survey of little power consumption according to claim 1 register, it is characterized in that described record data input circuit (6) is made up of resistance R 6, PNP triode T1, the I/O mouth of R6 one termination IC1, the base stage of another termination T1, the emitter of T1 meets power supply V, and the current collection of T1 is the record data output port very.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99247743 CN2396387Y (en) | 1999-11-19 | 1999-11-19 | Micropower small multi-sectional temp measuring recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99247743 CN2396387Y (en) | 1999-11-19 | 1999-11-19 | Micropower small multi-sectional temp measuring recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2396387Y true CN2396387Y (en) | 2000-09-13 |
Family
ID=34033112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99247743 Expired - Fee Related CN2396387Y (en) | 1999-11-19 | 1999-11-19 | Micropower small multi-sectional temp measuring recorder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2396387Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727275A (en) * | 2017-11-02 | 2018-02-23 | 国网山西省电力公司大同供电公司 | A kind of switch cubicle contact temperature measuring equipment |
-
1999
- 1999-11-19 CN CN 99247743 patent/CN2396387Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727275A (en) * | 2017-11-02 | 2018-02-23 | 国网山西省电力公司大同供电公司 | A kind of switch cubicle contact temperature measuring equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |