CN104020662A

CN104020662A - Electronic clock with year error absolute value smaller than one second

Info

Publication number: CN104020662A
Application number: CN201410278974.6A
Authority: CN
Inventors: 管存忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-22
Filing date: 2014-06-22
Publication date: 2014-09-03

Abstract

The invention provides an electronic clock with a year error absolute value smaller than one second. The electronic clock comprises a power supply, a single-chip microcomputer, an LED lattice screen, an infrared receiver and a battery, and further comprises an FM31T37x-series built-in crystal oscillator temperature compensation real-time clock chip and a voltage stabilization chip. The single-chip microcomputer is connected with the real-time clock chip, the LED lattice screen, the infrared receiver and the power supply respectively. The power supply is further connected with the real-time clock chip and the infrared receiver through the voltage stabilization chip. Under the support of software, the electronic clock with the built-in crystal oscillator temperature compensation real-time clock chip has the functions of calibrating year, month, week, day, hour, minute and second registers of the real-time clock chip and also has the function of calibrating a built-in 32768-Hz crystal oscillator of the real-time clock chip, frequency deviation of the crystal oscillator can be recalibrated conveniently, and the purpose that the year error absolute value is smaller than one second is achieved through individual compensation and calibration on the crystal oscillator; besides, the electronic clock is simple in structure and low in use condition and cost, so that high-precision timekeeping becomes simple, convenient and efficient, and the electronic clock is more convenient than a radio controlled clock and a GPS clock in use.

Description

The electronic clock that a kind of year Error Absolute Value is less than 1 second

Technical field

The present invention relates to electronic clock, a kind of year Error Absolute Value that particularly relates to built-in crystal oscillator temperature compensation real-time clock is less than the electronic clock structure of 1 second.

Background technology

At present, although the radio wave clock on market and GPS clock error are little, receive electric wave signal school every day time, 1 ability meets precision needs, and receive that the condition of electric wave signal is high, hardware configuration is complicated, fetch long price, use be flexibly inconvenient.

Summary of the invention

The technical problem to be solved in the present invention is, the electronic clock that provides a kind of year Error Absolute Value to be less than 1 second, the built-in crystal oscillator temperature compensation real-time timepiece chip that this electronic clock utilizes single-chip microcomputer to connect respectively, LED dot matrix screen, infrared receiving terminal, Bluetooth chip, power supply, described real-time timepiece chip is connected with power supply by voltage stabilizing chip, under software support, make the electronic clock of traditional built-in crystal oscillator temperature compensation real-time timepiece chip, not only there is the year of calibration real-time timepiece chip, month, week, day, time, point, the function of second register, calibrate in addition the function of the built-in 32768Hz crystal oscillator of real-time timepiece chip, it is convenient that crystal oscillator frequency skew is recalibrated, can realize the electronic clock that year Error Absolute Value is less than 1 second by its crystal oscillator of personalized compensation calibration, and simple in structure, service condition and cost are low, thereby make high-precision timing become easy and efficient, can feel more convenient than radio wave clock and GPS clock, thereby solved, although the radio wave clock on market and GPS clock error are little, receive electric wave signal school every day time, 1 ability meets precision needs, and receive that the condition of electric wave signal is high, hardware configuration is complicated, fetch long price, use inconvenience problem flexibly.

for achieving the above object, technical scheme of the present invention is as follows:

The electronic clock that a kind of year Error Absolute Value is less than 1 second, comprise, 5V to 5.5V D.C. regulated power supply, single-chip microcomputer, LED dot matrix screen, infrared receiving terminal, 3V battery, wherein, also comprise the built-in crystal oscillator temperature compensation real-time timepiece chip of FM31T37x series, 3V voltage stabilizing chip; Described single-chip microcomputer is connected with described real-time timepiece chip, described LED dot matrix screen, described infrared receiving terminal, described power supply respectively, described power supply is also connected with described LED dot matrix screen, described voltage stabilizing chip respectively, described voltage stabilizing chip is also connected with described real-time timepiece chip, described infrared receiving terminal respectively, and described real-time timepiece chip is also connected with described 3V battery.

Preferably, described LED dot matrix screen is 16x15 dual base color paster LED dot matrix screen.

Preferably, described LED dot matrix screen is 16x16 three primary colours paster LED dot matrix screen.

Preferably, described LED dot matrix screen is the mono-primary colours paster LED of 16x16 dot matrix screen.

Preferably, described single-chip microcomputer has also connected a Bluetooth chip, and this Bluetooth chip is for receiving the remote-control data of blue Tooth remote controller transmitting.

beneficial effect of the present invention:

The present invention, the electronic clock that a kind of year Error Absolute Value providing is less than 1 second, the built-in crystal oscillator temperature compensation real-time timepiece chip of FM31T37x series that this electronic clock utilizes single-chip microcomputer to connect respectively, LED dot matrix screen, infrared receiving terminal, Bluetooth chip, power supply, described real-time timepiece chip is connected with power supply by voltage stabilizing chip, under software support, make the electronic clock of traditional built-in crystal oscillator temperature compensation real-time timepiece chip, not only there is the year of calibration real-time timepiece chip, month, week, day, time, point, the function of second register, calibrate in addition the function of the built-in 32768Hz crystal oscillator of real-time timepiece chip, it is convenient that crystal oscillator frequency skew is recalibrated, can realize the electronic clock that year Error Absolute Value is less than 1 second by its crystal oscillator of personalized compensation calibration, and simple in structure, service condition and cost are low, thereby make high-precision timing become easy and efficient, can feel more convenient than radio wave clock and GPS clock.

Brief description of the drawings

Fig. 1 is the structural representation that a kind of year Error Absolute Value of the present invention is less than the electronic clock of 1 second.

Fig. 2 is the electronic clock workflow diagram that a kind of year Error Absolute Value of the present invention is less than 1 second.

Embodiment

In order to further illustrate principle of the present invention and structure, existing by reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail, but described embodiment is only for furnishing an explanation and the use of explaining, can not be used for limiting scope of patent protection of the present invention.

The electronic clock that a kind of year Error Absolute Value is as shown in Figure 1 and Figure 2 less than 1 second, comprise, 5V to 5.5V D.C. regulated power supply 1, single-chip microcomputer 6, LED dot matrix screen 5, infrared receiving terminal 7,3V battery 4, wherein, also comprise the built-in crystal oscillator temperature compensation real-time timepiece chip 3 of FM31T37x series, 3V voltage stabilizing chip 2; Described single-chip microcomputer 6 is connected with described real-time timepiece chip 3, described LED dot matrix screen 5, described infrared receiving terminal 7, described power supply 1 respectively, described power supply 1 is also connected with described LED dot matrix screen 5, described voltage stabilizing chip 2 respectively, described voltage stabilizing chip 2 is also connected with described real-time timepiece chip 3, described infrared receiving terminal 7 respectively, and described real-time timepiece chip 3 is also connected with described 3V battery 4.

When dispatching from the factory, calibrates the crystal oscillator of the built-in crystal oscillator temperature compensation real-time timepiece chip 3 of described FM31T37x series, but it has just calibrated the frequency error of these components and parts, and the precision of electronic clock is to be determined by complete circuit, that is to say, the crystal oscillator of having calibrated when its circuit and the electronic component being connected with this circuit all affect and dispatch from the factory, can cause this crystal oscillator frequency skew, affect the precision of electronic clock finished product, and the invention is characterized in, there is the function of the built-in 32768Hz crystal oscillator of calibration real-time timepiece chip 3, it is convenient that crystal oscillator frequency skew is recalibrated, can realize the timing that year Error Absolute Value is less than 1 second by its crystal oscillator of personalized compensation calibration.

Preferably, described LED dot matrix screen 5 is 16x15 dual base color paster LED dot matrix screen.

Preferably, described LED dot matrix screen 5 is 16x16 three primary colours paster LED dot matrix screen.

Preferably, described LED dot matrix screen 5 is the mono-primary colours paster LED of 16x16 dot matrix screen.

Preferably, described single-chip microcomputer 6 has also connected a Bluetooth chip 8, and this Bluetooth chip 8 is for receiving the remote-control data of blue Tooth remote controller (not shown) transmitting.

Described embodiment advantage and beneficial effect are, this in embodiment year the Error Absolute Value electronic clock that is less than 1 second, the built-in crystal oscillator temperature compensation real-time timepiece chip of FM31T37x series that this electronic clock utilizes single-chip microcomputer to connect respectively, LED dot matrix screen, infrared receiving terminal, Bluetooth chip, 5V to 5.5V D.C. regulated power supply, described real-time timepiece chip is connected with power supply by voltage stabilizing chip, under software support, make the electronic clock of traditional built-in crystal oscillator temperature compensation real-time timepiece chip, not only there is the year of calibration real-time timepiece chip, month, week, day, time, point, the function of second register, calibrate in addition the function of the built-in 32768Hz crystal oscillator of real-time timepiece chip, it is convenient that crystal oscillator frequency skew is recalibrated, can realize the electronic clock that year Error Absolute Value is less than 1 second by its crystal oscillator of personalized compensation calibration, and simple in structure, service condition and cost are low, thereby make high-precision timing become easy and efficient, can feel more convenient than radio wave clock and GPS clock.

The just embodiment of invention described above; various not illustrating limited essence of an invention Composition of contents; person of an ordinary skill in the technical field read after instructions can to before described embodiment make an amendment or be out of shape, all should be considered as belonging to protection scope of the present invention.

Claims

One kind year the Error Absolute Value electronic clock that is less than 1 second, comprise, 5V to 5.5V D.C. regulated power supply, single-chip microcomputer, LED dot matrix screen, infrared receiving terminal, 3V battery, is characterized in that, also comprise the built-in crystal oscillator temperature compensation real-time timepiece chip of FM31T37x series, 3V voltage stabilizing chip; Described single-chip microcomputer is connected with described real-time timepiece chip, described LED dot matrix screen, described infrared receiving terminal, described power supply respectively, described power supply is also connected with described LED dot matrix screen, described voltage stabilizing chip respectively, described voltage stabilizing chip is also connected with described real-time timepiece chip, described infrared receiving terminal respectively, and described real-time timepiece chip is also connected with described 3V battery.
2. the electronic clock that a kind of year according to claim 1 Error Absolute Value is less than 1 second, is characterized in that: described LED dot matrix screen is 16x15 dual base color paster LED dot matrix screen.
3. the electronic clock that a kind of year according to claim 1 Error Absolute Value is less than 1 second, is characterized in that: described LED dot matrix screen is 16x16 three primary colours paster LED dot matrix screen.
4. the electronic clock that a kind of year according to claim 1 Error Absolute Value is less than 1 second, is characterized in that: described LED dot matrix screen is the mono-primary colours paster LED of 16x16 dot matrix screen.
5. the electronic clock that is less than 1 second according to a kind of year Error Absolute Value described in arbitrary claim in claim 1 to 4, is characterized in that: described single-chip microcomputer has also connected a Bluetooth chip, and this Bluetooth chip is for receiving the remote-control data of blue Tooth remote controller transmitting.