CN114721246A - Software-free low-temperature-resistant timing timer - Google Patents
Software-free low-temperature-resistant timing timer Download PDFInfo
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- CN114721246A CN114721246A CN202210463106.XA CN202210463106A CN114721246A CN 114721246 A CN114721246 A CN 114721246A CN 202210463106 A CN202210463106 A CN 202210463106A CN 114721246 A CN114721246 A CN 114721246A
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- 239000013078 crystal Substances 0.000 claims abstract description 13
- 230000010355 oscillation Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
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- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F10/00—Apparatus for measuring unknown time intervals by electric means
- G04F10/02—Apparatus for measuring unknown time intervals by electric means using oscillators with passive electric resonator, e.g. lumped LC
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Measurement Of Predetermined Time Intervals (AREA)
Abstract
The invention relates to a timer, in particular to a software-free low-temperature-resistant timing timer which comprises a chip U5 with the model number of CD4060, a chip U2 with the model number of 74HC192, U3, U4, a chip U1 with the model number of 74HC00, a crystal oscillator circuit and a low-temperature-resistant battery, wherein the low-temperature-resistant battery is adopted as a driving power supply of the timing timer, the crystal oscillator circuit is used as the internal oscillation timing of the chip, the chip U5 is used as a total timing chip, the three combined chips are used as the frequency division timing of the oscillation circuit, the final design is calculated to be 5 minutes to output voltage feedback, a buzzer and an LED lamp are used for reminding that the timing time is in place, the reset button is used for resetting, a switch button is arranged on a power supply line of the driving power supply, and the internal circuit of the timer is arranged in a shell. The invention can be normally used in low temperature environment in the form of hardware combination without programmable controller, and through scientific calculation and overall layout, the timer has simple operation and convenient use, and meets the use requirement of the user for timing in low temperature environment.
Description
Technical Field
The invention relates to a timer, in particular to a software-free low-temperature-resistant timing timer.
Background
The timer is used for reminding after the appointed time is reached, and is generally commonly used in kitchens or other special places needing timing. Most timers capable of setting timing time adopt a programmable controller mode, are complex to operate and poor in low-temperature resistance effect, and the timers adopting a mechanical timing mode need to rotate reversely to operate every time, are not high in precision and difficult to operate, and are limited in use conditions in a low-temperature environment.
Disclosure of Invention
The invention aims to provide a timing timer which can be normally used in a low-temperature environment (50 ℃ below zero), adopts a hardware combination mode without a programmable controller, is simple to operate and convenient to use by scientific calculation and overall layout, and meets the use requirement of a user on timing in the low-temperature environment.
The invention is realized by adopting the following technical scheme: a software-free low-temperature-resistant timing timer comprises a shell and a circuit board in the shell, wherein a timing circuit is arranged on the circuit board and comprises a chip U5 with the model of CD4060, a chip A with the model of 74HC192, a chip U1 with the model of 74HC00, a crystal oscillator circuit, a switch button, a reset button and a battery, the battery is used as a circuit board driving power supply, the switch button adopts a self-locking button and is used for switching on and off power supply between the battery and the circuit board, the reset button adopts a self-resetting button and is used for starting timing in the starting timing or middle process of the timer, the number of the chips A is n, and the ith chip A is represented as Ai; a10 pin and an 11 pin of a chip U5 are connected with a crystal oscillator circuit, a 16 pin is connected with a power supply, A3 pin is connected with a 5 pin of a chip A1 as an output pin, through the crystal oscillator frequency and the frequency division calculation of the chip U5, a pulse signal is output to the chip A1 at an interval of 0.5S according to the requirement of the 3 pin of the chip U5, 4 pins, 13 pins and the 16 pin of the chip A1 are connected with the power supply, 1 pin, 8 pins, 9 pins, 10 pins, 11 pins and 15 pins are grounded, a 12 pin is connected with the 5 pin of the chip A2 as an output pin, a pulse signal is output to the chip A2 at an interval of 5S of the 12 pin of the chip A1 (the 3 pin, 2 pin, 6 pin, 7 pin and 12 pin of the chip A are used as output pins, and input signals are respectively output by 2 times, 4 times, 6 times, 8 times and 10 times), the 4 pins, 13 pins, 16 pins and the power supply and 1 pin of the chip A2, 8 pin, 9 pin, 10 pin, 11 pin, 15 pin are grounded, 12 pin is connected with 5 pin of chip A3 as output pin, 12 pin of chip A2 outputs a pulse signal to chip A3 at 50S interval, 4 pin, 13 pin, 16 pin of chip A3 are connected with power supply, 1 pin, 8 pin, 9 pin, 10 pin, 11 pin, 15 pin are grounded, 12 pin is connected with chip as output pinThe 5 pins of A4 are connected, and so on, the 12 pins of a chip An-2 are connected with the 5 pins of a chip An-1 as output pins, and the 12 pins of the chip An-2 are separated by 5 multiplied by 10n-3S outputs a pulse signal to be sent to a chip An-1, 4 pins, 13 pins and 16 pins of the chip An-1 are connected with a power supply, 1 pin, 8 pins, 9 pins, 10 pins, 11 pins and 15 pins are grounded, 12 pins of the chip An-1 are used as output pins and are connected with 5 pins of a chip U1, 12 pins of the chip An-1 are separated by 5 multiplied by 10 pinsn-2S outputs a pulse signal to be sent to a chip U1, 14 pins of chips A1, A2 and … An-1 are connected and grounded through resistors, a reset button is externally connected to the 14 pin of the chip A1, the 14 pin of the chip U1 is connected with a power supply, the 7 pin is grounded, the 1 pin and the 2 pin of the chip U1 are respectively connected with any two pins of the 2 pin, the 3 pin, the 6 pin and the 7 pin of the chip An, the 3 pin and the 4 pin of the chip U1 are connected, the 3 pin of the chip U1 is also connected with a buzzer and An LED lamp, the 6 pin of the chip U1 is connected with the 5 pin of the chip An, the 5 pin of the U1 is connected with the 4 pin of the U1 through NAND gate calculation, the 6 pin is used as An output to be connected with the input 5 pin of the chip An, the 4 pin, the 13 pin and the 16 pin of the chip An are connected with the power supply, the 1 pin, the 8 pin, the 9 pin, the 10 pin, the 11 pin and the 15 pin are grounded, after the chip U1 and the chip U4 work together, the 3 pins of the chip U1 are separated by 5X 10n-2S, outputting a pulse signal, wherein the buzzer rings, the LED lamp is on, and the timing time is reminded to arrive; the timing is restarted each time the reset button is pressed. X is the expansion multiple of the chip An and is related to which two pins of 2 pins, 3 pins, 6 pins and 7 pins are connected with the chip U1.
The software-free low-temperature-resistant timing timer has the advantages that the driving power supply and the electronic components are low-temperature-resistant in specification and model.
The invention has the following advantages:
1. accurate timing, namely resetting at any time and starting accurate timing at any time;
2. due to the low-temperature-resistant design, all components and batteries are low-temperature-resistant models, accurate timing can be performed in a low-temperature use environment, the complex operation of a mechanical timer and the incapability of meeting the requirements of the low-temperature use environment of an electronic timer are avoided, and an operator can conveniently perform accurate timing reminding;
3. through the design of a non-programming chip, the precise driving of a crystal oscillator is adopted, and the reasonable design and calculation of frequency division are carried out, so that the requirement of software-free timing design is finally met; the product has strong interactivity and man-machine performance, simple operation and convenient use, and is easier to control by a user.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
A software-free low-temperature-resistant timing timer comprises a chip U5 with a model of CD4060, three combined chips A1 with a model of 74HC192, A2 and A3, and a chip U1 with a model of 74HC00, a crystal oscillator circuit and a low-temperature-resistant battery, wherein the low-temperature-resistant battery is used as a driving power supply of the timing timer, the crystal oscillator circuit is used for internal oscillation timing of the chip, the chip U5 is used as a total timing chip, the three combined chips are used for frequency division timing of the oscillation circuit, the final design calculation is 5-minute output voltage feedback, a buzzer and an LED lamp are used for reminding that the timing time is in place, a reset button is used for resetting, a switch button is arranged on a power supply line of the driving power supply, and an internal circuit of the timing timer is arranged in a shell.
Chip U5 has 10 pins and 11 pins connected to a crystal oscillator circuit, 16 pins connected to a power supply, 3 pins connected as output pins to chip A1 at 5 pins, chip U5 having 3 pins connected to chip A1 at 0.5S intervals, chip A1 having 4 pins, 13 pins, and 16 pins connected to power supply, 1 pin, 8 pin, 9 pin, 10 pin, 11 pin, and 15 pins connected to ground, 12 pins connected as output pins to chip A2 at 5 pins, chip A1 having 12 pins connected to chip A2 at 5S intervals, chip A2 having 4 pins, 13 pins, and 16 pins connected to power supply, 1 pin, 8 pin, 9 pin, 10 pin, 11 pin, and 15 pin connected to ground, 12 pins connected as output pins to chip U1 at 5 pins, chip A2 having 12 pins connected to chip A1 at 50S intervals, chip A2 having 14 pins connected to chip A1 and connected to ground via resistors, a reset button is externally connected to a 14 pin of a chip A2, a 14 pin of a chip U1 is connected with a power supply, a 7 pin is grounded, a1 pin of a chip U1 is connected with a 6 pin of a chip A3, a2 pin of a chip U1 is connected with a2 pin of a chip A3, A3 pin of the chip U1 is connected with a4 pin, A3 pin of the chip U1 is also connected with a buzzer and an LED lamp, a 6 pin of the chip U1 is connected with a 5 pin of the chip A3, a4 pin, a 13 pin and a 16 pin of the chip A3 are connected with a power supply, a1 pin, an 8 pin, a 9 pin, a 10 pin, an 11 pin and a 15 pin are grounded, after the chip U1 and the chip A3 act together, the 3 pin of the chip U1 outputs a pulse signal at an interval of 300S, at the moment, the buzzer rings, the LED lamp is on, and the timing time is reminded; the timing is restarted each time the reset button is pressed.
The embodiment has the following advantages:
1. a hardware chip lap joint combination mode is adopted in the timer, the fixed chip is internally driven through the crystal oscillator, the crystal oscillator time of high frequency is subjected to frequency division calculation through reasonable and scientific design, and accurate five-minute timing is finally achieved;
2. the low-temperature resistant design is adopted, all raw materials and electronic components are designed in a low-temperature resistant type selection mode, the shell is designed in a closed mode, the circuit board is designed in a three-prevention mode, and the using effect in a low-temperature environment is guaranteed to the maximum extent;
3. the operation is simple, the timing is started at any time by pressing the reset key, the appearance design is simple, and the integration, the green design and the man-machine design are considered simultaneously.
Claims (2)
1. A software-free low-temperature-resistant timing timer is characterized in that: the chip comprises a chip U5 with the model number of CD4060, a chip A with the model number of 74HC192, a chip U1 with the model number of 74HC00, a crystal oscillator circuit and a battery, wherein the battery is used as a driving power supply, the number of the chips A is n, and the ith chip A is represented as Ai; chip U5 with 10 and 11 pins connected to crystal oscillator circuit, 16 pins connected to power supply, 3 pins as output pins connected to 5 pins of chip A1, chip A1 with 4, 13 and 16 pins connected to power supply, 1, 8, 9, 10, 11 and 15 pins grounded, 12 pins as output pins connected to 5 pins of chip A2, chip A2 with 4, 13 and 16 pins connected to power supply, 1, 8, 9, 10, 11 and 15 pins grounded, 12 pins as output pins connected to 5 pins of chip A3, chip A3 with 4, 13 and 16 pins connected to power supply, 1, 8, 9, 10, 11 and 15 pins grounded, 12 pins as output pins connected to 5 pins of chip A4, and so on, chip An-2 with 12 pins as output pins connected to 5 pins of chip An-1, the 4 pins, 13 pins and 16 pins of the chip An-1 are connected with a power supply, the 1 pin, 8 pins, 9 pins, 10 pins, 11 pins and 15 pins are grounded, the 12 pins of the chip An-1 are used as output pins to be connected with the 5 pins of the chip U1, the 14 pins of the chip A1, the chip A2 and … of the chip An-1 are connected with the ground through resistors, a reset button is externally connected on the 14 pin of the chip A1, the 14 pin of the chip U1 is connected with the power supply, the 7 pin is grounded, the 1 pin and the 2 pin of the chip U1 are respectively connected with any two pins of the 2 pin, the 3 pin, the 6 pin and the 7 pin of the chip An, the 3 pin and the 4 pin of the chip U1 are connected, the 3 pin of the chip U1 is also connected with a buzzer and An LED lamp, the 6 pin of the chip U1 is connected with the 5 pin of the chip An, the 4 pins, 13 pins, 16 pins, the 16 pins and the 1 pin of the chip An are connected with the power supply, and the 1 pin, Pins 8, 9, 10, 11 and 15 are grounded.
2. The software-free low temperature-resistant timing timer of claim 1, wherein: the driving power supply and the electronic components are both in low temperature resistant specifications and models.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210463106.XA CN114721246A (en) | 2022-04-29 | 2022-04-29 | Software-free low-temperature-resistant timing timer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210463106.XA CN114721246A (en) | 2022-04-29 | 2022-04-29 | Software-free low-temperature-resistant timing timer |
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| CN114721246A true CN114721246A (en) | 2022-07-08 |
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| CN202210463106.XA Pending CN114721246A (en) | 2022-04-29 | 2022-04-29 | Software-free low-temperature-resistant timing timer |
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Citations (14)
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| US5229981A (en) * | 1992-04-20 | 1993-07-20 | Maschi Louis P | Digital multi event timer |
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| CN103529376A (en) * | 2012-07-03 | 2014-01-22 | 鸿富锦精密工业（深圳）有限公司 | Clock test circuit |
| CN104184436A (en) * | 2014-07-29 | 2014-12-03 | 中国航天科技集团公司第九研究院第七七一研究所 | Triggerable accurate timing circuit with wide supply voltage range |
| US20160065132A1 (en) * | 2014-09-03 | 2016-03-03 | Seiko Instruments Inc. | Crystal oscillation circuit and electronic timepiece |
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2022
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Patent Citations (14)
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| US5444674A (en) * | 1994-06-08 | 1995-08-22 | Sellie; Clifford N. | Hand held decimal timer with improved frequency division |
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| CN110083100A (en) * | 2019-05-06 | 2019-08-02 | 广东石油化工学院 | A kind of SCM Based electronic timer |
| CN211653417U (en) * | 2020-04-01 | 2020-10-09 | 常州工学院 | Time-telling circuit and clock |
| CN216122225U (en) * | 2021-10-18 | 2022-03-22 | 中国人民解放军第六四零九工厂 | Intermediate frequency power supply |
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