CN201007792Y

CN201007792Y - Time synchronization electronic clock

Info

Publication number: CN201007792Y
Application number: CN 200620145490
Authority: CN
Inventors: 顾西雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-30
Filing date: 2006-12-30
Publication date: 2008-01-16
Anticipated expiration: 2016-12-30

Abstract

The utility model discloses a time synchronization electronic clock, which comprises a plurality of electronic clocks, a single chip processing circuit in the electronic clocks and a LED display screen, and is characterized in that the utility model further comprises a time signal generator which is connected with a signal carrier modulation module, and a signal carrier demodulation module which is connected with the single chip processing circuit arranged in the electronic clock. The signal carrier demodulation modules of a plurality of electronic clocks are connected with the signal carrier modulation module through a signal transmission line, time signals produced by the time signal generator are modulated to modulation signals through the signal carrier modulation module, and the modulation signals are output through the signal transmission line, the signal carrier demodulation modules read and demodulate the modulation signals from the signal transmission line and then output the modulation signals to the single chip processing circuit, a single chip r employs the time signals which are demodulated to modify a travel time in the electronic clock, and the modified travel time are output to the LED display screen to display. The time signals of each electronic clock are completely identical, and thereby the times displayed are absolutely uniform.

Description

The time synchronized electronic clock

Technical field

The utility model relates to a kind of time synchronized electronic clock, and this electronic clock is proofreaied and correct when receiving time and date synchronizing signal on the line of electric force to the walking of electronic clock the time, when making every the electronic clock that is connected on the line of electric force keep synchronous walking.Can be widely used in office field and public situation.

Background technology

Present clock miscellaneous all uses at individual and family and designs, and the clock in not chummery use is separate usually.Owing to often have the regular hour drift between each clock; make that the interior clock of chummery does not show the not quite identical time; and along with the accumulation of time, if clock is not in time proofreaied and correct, the deviation between each clock may differ greatly.For the collective activity of the time of strict demand, such clock just can't be coordinated people and unify synchronous action.

In addition, clock in the past carries out by hand for setting and the correction of time.Watch time or the TV of receiving, wireless giving the correct time were provided with and proofread and correct as the clock of reference time to oneself accurately when people walked other usually.Often also there is very big time deviation in this restriction that the setting and the correcting mode of clock time usually are subjected to the place and the time of giving the correct time.Time is engaged in something accurately owing to often needing in the office field, the people of chummery or different places not, often need finish jointly at one time a task, as the program making and the broadcast of the going to school and leaving school of on and off duty, the school of company, TV station, the performance of theater etc.Therefore, have a kind of like this demand of clock system, it should guarantee the precisely errorless of clock time, the time in the time of guaranteeing to make the clock of each room or different places to keep synchronous fully walking again.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of time synchronized electronic clock, and the time that each electronic clock is shown is in full accord.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of time synchronized electronic clock is provided, comprise single-chip microcomputer treatment circuit, LED display in several electronic clocks and the electronic clock, it is characterized in that: also have a time signal generator, time signal generator connects a carrier modulation module; Be provided with the carrier wave demodulation module that is connected with the single-chip microcomputer treatment circuit in the electronic clock; The carrier wave demodulation module of several electronic clocks is connected in the carrier modulation module by a signal transmssion line; The time signal that time signal generator produces is modulated to modulation signal through the carrier modulation module, spread out of by signal transmssion line, the carrier wave demodulation module is from exporting to the single-chip microcomputer treatment circuit in the electronic clock after signal transmssion line is read modulation signal and demodulation, the time was revised when single-chip microcomputer adopted time signal after the demodulation to walking in the electronic clock, exported to LED display and showed.

Further improvement in the technical proposal is:

Described time signal generator comprises a GPS receiver module and a single-chip microcomputer, the GPS receiver module receives gps satellite signal and is transferred to single-chip microcomputer, be decoded as time signal and export to the carrier modulation module through single-chip microcomputer, and time signal is modulated on the signal transmssion line.

Described time signal generator also can comprise a ratio long wave receiver module and a single-chip microcomputer, the ratio long wave receiver module receives the time reference signal that the cell site, ground sends with long wave, be decoded as the time signal of electronic clock and export to the carrier modulation module through single-chip microcomputer, and time signal is modulated on the signal transmssion line.

Described signal transmssion line is a line of electric force.

The inner single-chip microcomputer treatment circuit of described electronic clock also connects a receiver of remote-control sytem.

The beneficial effects of the utility model are: because several electronic clocks of the present utility model are connected in signal transmssion line jointly, the time signal that time signal generator produces is modulated to modulation signal through the carrier modulation module, spread out of by signal transmssion line, the carrier wave demodulation module is exported to the single-chip microcomputer treatment circuit after signal transmssion line is read modulation signal and demodulation, single-chip microcomputer is revised and is exported to LED display with the time signal that receives to its internal time and shows, therefore, the time signal of each electronic clock is identical, and the shown time is definitely unified.

Description of drawings

Fig. 1 is the system principle diagram of the utility model time synchronized electronic clock.

Fig. 2 is the theory diagram of the utility model time signal generator.

Fig. 3 is the theory diagram of the utility model time synchronized electronic clock.

Below in conjunction with accompanying drawing the utility model is described further:

Embodiment

See also Fig. 1 to 3:

A kind of time synchronized electronic clock of the utility model comprises single-chip microcomputer treatment circuit, LED display in several electronic clocks and the electronic clock, also has a time signal generator, and time signal generator connects a carrier modulation module; Be provided with the carrier wave demodulation module that is connected with the single-chip microcomputer treatment circuit in the electronic clock; The carrier wave demodulation module of several electronic clocks is connected in the carrier modulation module by a signal transmssion line; The time signal that time signal generator produces is modulated to modulation signal through the carrier modulation module, spread out of by signal transmssion line, the carrier wave demodulation module is exported to the single-chip microcomputer treatment circuit after signal transmssion line is read modulation signal and demodulation, single-chip microcomputer is revised and exported to LED display with the time signal that receives to its internal time and shows.

Time signal generator is the generation time signal voluntarily, also can receive gps satellite signal and come the generation time signal, also can receive the time reference signal that the cell site, ground sends with long wave, such as, time signal generator comprises a GPS receiver module and a single-chip microcomputer, the GPS receiver module receives gps satellite signal and is transferred to single-chip microcomputer, is decoded as time signal and exports to the carrier wave demodulation mould through single-chip microcomputer to be modulated on the signal transmssion line.

Time signal both can transmit with special signal transmssion line, also can utilize the line of electric force that is seen everywhere to transmit.Line of electric force is except the working power that offers electronic clock, and also the while is as the signal wire delivery time and the date synchronizing signal of system.These characteristics are that the installation of system is implemented to have brought very big convenience, promptly do not need to lay special signal pipe line, as long as there is the room of line of electric force just can synchronous electronic clock of set-up time.

The single-chip microcomputer treatment circuit of electronic clock inside can also connect a receiver of remote-control sytem, can carry out straighforward operation.

Principle of work and process:

1) the GPS digital signal that will comprise time and date information of the GPS receiver module in the time signal generator sends the time decoder single-chip microcomputer in the time signal generator to, and this single-chip microcomputer receives gps data and decoding converses " time, minute, second " time data and " month, day, week " date data.

2) the time decoder single-chip microcomputer with the time and date data by appointment the serial type data transfer protocol of form be packaged as synchronization packets, its transmission protocol format is as follows:

1. time synchronized packet: data head, time type codes, time-code, demal, second sign indicating number, check code, data tail.

2. date synchronization packets: data head, date type sign indicating number, month sign indicating number, day sign indicating number, week sign indicating number, check code, data tail.

Single-chip microcomputer produced 1 loyal time synchronized packet every 5 seconds, produced 1 loyal date synchronization packets every 1 minute.

3) synchronization packets adopts one of following three kinds of forms that synchronization packets is transmitted to the electronic clock system by the power line carrier modulation module on the time signal generator: 1. transmit between phase line by line of electric force and the zero line; 2. transmit between zero line by line of electric force and the ground wire; 3. transmit by special connection.

4) be connected on electronic clock on the signal transmssion line, its inner carrier wave demodulation module is carried out demodulation to the carrier signal on the signal transmssion line, and gives the single-chip microcomputer treatment circuit with the time and date synchronous data transmission after the demodulation.The main task of the single-chip microcomputer treatment circuit on the electronic clock is 1. time of reception and date synchrodata, with reference time and the date of this synchrodata as its internal clocking; 2. accept infrared remote controller external control order; 3. produce internal clocking; 4. produce the shows signal of LED charactron.

During the walking of time synchronized electronic clock and the gps satellite time be on all four, and the time and date of electronic clock system is not need manually to be provided with and to proofread and correct.Every synchronous electronic clock on this external system also can work independently, and receives the setting of telepilot to time and date by the infrared remote receiver on the synchronous mode electronic clock.Therefore the utility model digital and electronic master slave system can satisfy occasions such as office building, performance venue, public place, school fully for accuracy and the synchronism requirement of time, and have practicality widely.

Because electronic clock itself also has independently high-precision timing, by telepilot time and date is set,, also can constitute the electronic clock of an independence for Taiwan from work in the occasion that does not have the line of electric force synchronizing signal.

Claims

1. a time synchronized electronic clock comprises single-chip microcomputer treatment circuit, LED display in several electronic clocks and the electronic clock, and it is characterized in that: also have a time signal generator, time signal generator connects a carrier modulation module; Be provided with the carrier wave demodulation module that is connected with the single-chip microcomputer treatment circuit in the electronic clock; The carrier wave demodulation module of several electronic clocks is connected in the carrier modulation module by a signal transmssion line; The time signal that time signal generator produces is modulated to the time modulation signal through the carrier modulation module, spread out of by signal transmssion line, the carrier wave demodulation module is exported to the single-chip microcomputer treatment circuit after signal transmssion line modulation signal readout time and demodulation, the time was revised when single-chip microcomputer adopted time signal after the demodulation to walking in the electronic clock, exported to LED display and showed.

2. time synchronized electronic clock as claimed in claim 1, it is characterized in that described time signal generator comprises a GPS receiver module and a single-chip microcomputer, the GPS receiver module receives gps satellite signal and is transferred to single-chip microcomputer, be decoded as signal reference time of electronic clock through single-chip microcomputer, and export to the carrier modulation module it is modulated on the transmission line.

3. time synchronized electronic clock as claimed in claim 1, it is characterized in that: described time signal generator also can comprise a ratio long wave receiver module and a single-chip microcomputer, the ratio long wave receiver module receives the time reference signal that the cell site, ground sends with long wave, be decoded as signal reference time of electronic clock through single-chip microcomputer, and export to the carrier modulation module it is modulated on the transmission line.

4. time synchronized electronic clock as claimed in claim 1 is characterized in that: described signal transmssion line is a line of electric force.

5. time synchronized electronic clock as claimed in claim 1 is characterized in that: described treatment circuit also connects a receiver of remote-control sytem.