CN2497348Y

CN2497348Y - Time-calibrating control device

Info

Publication number: CN2497348Y
Application number: CN 00262119
Authority: CN
Inventors: 柴超; 肖广明
Original assignee: Individual
Current assignee: Hebei Maiao Mdt Infotech Ltd
Priority date: 2000-11-15
Filing date: 2000-11-15
Publication date: 2002-06-26
Anticipated expiration: 2010-11-15

Abstract

The utility model relates to a time calibration control device which comprises a receiver, an information processing and internal clock circuit and a display circuit, wherein the receiver can receive a mobile communicating net signal or a paging signal synchronously to a GPS time. The information processing and internal clock circuit comprises a demoding circuit, a microprocessor and an internal clock; a decoder coupled with the receiver decodes the GPS reference time carried by a system signal from the received system signal and sends the GPS reference signal to the microprocessor; the microprocessor generates actual time and calibrates the internal clock according to the GPS reference time and the clock signal of the internal clock. The display circuit displays the current actual time received from the microprocessor.

Description

A kind of time calibration control device

The utility model relates to a kind of time calibration of control device.More particularly, relate to a kind of like this device, promptly utilize this device, can be according to certain signal source, for example GPS reference time, utilize the reception that comprises the numerical information of reference time in gsm communication net or the paging system again, automatically timing devices such as clock and watch are carried out time calibration.

Clock and watch were invented a lot of years, it provides temporal information to people, people do various things according to temporal information, but all can produce accumulated error regardless of the clock and watch which company (producer) produces in daily life, the conventional approach of eliminating this accumulated error is chosen exactly and is adjusted clock and watch, and this brings inconvenience to people virtually.

Abroad had at present to receive the product that the Satellite GPS signal is calibrated automatically to wrist-watch, but this product needed GPS receiver, and equipment is very expensive, and can only receive the satellite-signal of direct projection, can't be in indoor use.

Current society has entered informationized society, has a lot of information can receive, handle and utilize.Signal transmission power such as the multi-frequency roaming paging system is strong, signal wide coverage (each base station can cover 30 kilometers), and signal frequency belongs to uhf band, and buildings etc. is had stronger diffracting power, can be in indoor reception.Therefore, press for a kind of device that can utilize existing signal resource that timing devices such as clock and watch are calibrated automatically at present.

In order to solve the above problems, the purpose of this utility model is to propose a kind ofly can regularly send automatically calibrating signal according to the GPS standard time, thus a kind of time calibration of the control device when the control clock and watch are walked.

Time calibration of the present utility model control device, comprising:

Receiver receives the mobile communication network signal or the paging signal that are synchronized to gps time;

Information processing and internal clock circuit and display circuit comprise:

Decoding circuit, described demoder and described receiver are coupled, and decode this system signal entrained GPS reference time from the system signal that described receiver receives,

Internal clocking,

Microprocessor is coupled with described decoding circuit, receives this GPS signal reference time from described decoding circuit; And be coupled with described internal clocking,, generate the real time, and calibration internal clocking with according to GPS reference time and from the clock signal of internal clocking;

Display circuit is coupled with described microprocessor, to show the current real time that receives from microprocessor.

Series of products that GPS standard time technological development goes out are extracted in the utility model utilization, and to have a volume little, in light weight, and little power consumption is highly sensitive, can use characteristics such as AC and DC power supply.These series of products can also be installed in the inside of miscellaneous equipment (or product).

Fig. 1 is the schematic diagram of full-automatic digital information reception of the present utility model and time calibrating installation.

Fig. 2 A and Fig. 2 B are that full-automatic digital information shown in Figure 1 receives and the detailed circuit diagram of time calibrating installation.

Fig. 3 is the sequential chart of Flex paging signal.

Realize time calibration device key of the present utility model be following some:

1. find a kind of time source (as GPS), receive signal reference time that this time source sends;

2. gather the signal of the current internal clocking state of expression, according to reference time and current internal clocking calculating calibration parameter, and this Parameters Transformation is become control signal;

3. send control signal to controlled device (or product), calibrate by the controller deadline.

Obtain gps signal at present dual mode can be arranged:

(1) receive the gps signal that satellite sends: this method needs the GPS receiver, and equipment is very expensive, and can only directly accept the satellite-signal of direct projection, can't be in indoor use.

(2) utilize the mobile radio communication (such as the GSM net) spread all over the country and the GPS synchronizing signal in the multi-frequency roaming paging network, can obtain the GPS time reference signal.Because the signal of mobile radio communication and multi-frequency roaming paging system and the signal transmission power of POCSAS sign indicating number roaming paging system are big, the signal wide coverage has stronger diffracting power to buildings etc., can be in indoor reception.

The utility model designer finds, utilizes the GPS reference time of FLEX multi-frequency roaming paging signal and POCSAS sign indicating number roaming paging signal, and regularly (as per 4 minutes) send the calibration control signal, can control miscellaneous equipment (or product).For example 1) product of control clock and watch can regularly send calibrating signal according to the GPS standard time, when the control clock and watch are walked, eliminate the accumulated error of clock and watch, use in fields such as very accurate when clock and watch are walked, this novel clock and watch can be in the hotel, restaurant, bank, post and telecommunications, communications and transportation, education; 2) product of control computer clock can make the system for computer time not have accumulated error according to the automatic calibration calculations machine time of GPS standard time.Can produce top-end computer with this product, particularly suitable with to the wide area network application system of time requirement strictness; 3) product of control instrument instrument can make the time of instrument and meter not have cumulative errors according to the time of automatic calibration instrument instrument of GPS standard time.Can produce the top-grade instrument instrument with this product, be particularly useful for field the time requirement strictness.

Referring to Fig. 1, Fig. 1 shows the schematic diagram of full-automatic digital information reception of the present utility model and time calibrating installation.This time calibration device comprises receiver, information processing and internal clock circuit and display circuit, and wherein information processing and internal clock circuit comprise decoding circuit, microprocessor and internal clocking.Receiver receives aerial the mobile radio communication signal or the paging signal that have the gps time benchmark by inside antenna, gives decoding circuit and carry out protocol-decoding after demodulation.This receiver can be any type of be used to receive in the above scope of 270MHz, by the receiver of the wireless signal of mobile radio communication or paging network emission.

Demoder and receiver are coupled, and according to respective protocol, decode this system signal entrained GPS reference time from the system signal that receiver receives, and this GPS reference signal is sent into microprocessor.Microprocessor is according to GPS reference time and from the clock signal of internal clocking, obtains the data such as starting time, date of current period, calculates the actual gps time of current time, and the calibration internal clocking.If extract the GPS standard time from the FLEX paging network, demoder can use Samsung, the logical FLEX demoder of being produced of Taiwan electricity.In the present invention, microprocessor can be the single-chip microcomputer that Hitachi, Samsung or Toshiba produce.Internal clocking can be the internal clocking that moves logical product, computing machine, instrument and meter or automatic control equipment, or their combination.

Display circuit and microprocessor are coupled, and show the current real time that receives with digital form or pointer form from microprocessor.

In addition, microprocessor can also be handled by temperature, the relevant data that humidity sensor is sent here, and these data are shown by display screen.

Fig. 2 A and Fig. 2 B show the full-automatic digital information reception shown in Figure 1 and the detailed circuit diagram of time calibrating installation.

Referring to Fig. 3, Fig. 3 has specifically described the formation sequential chart of Flex paging signal.

In existing GSM mobile handset broadcast channel and the paging system signal, all have to make mobile phone and pager be synchronized to the signal of system.With typical Flex paging signal is example, and the synchronous code of paging signal is: there are 15 cycle (cycle) each hour, and each cycle is 4 minutes, and each cycle includes 128 frames (every frame is 1.875 seconds), and each frame includes 11 Block (piece).Pager is in order to receive paging signal, and it at first will be synchronized on the cycle of paging system signal.Because paging signal is all issued the system signal that includes the initial gps time of current cycle, date data at each cycle, as long as therefore can gps time, date data extract real-time that the cycle in the current cycle system signal of paging system is initial come out, just can be with it as the parameter of calibrating automatically.

Owing to just can obtain the initial gps time of current cycle, date data every 4 minutes, and these data and self timekeeping system error have nothing to do, so this automatic calibrating method just disappears and made the deficiency of other calibration steps accumulated error.Because the automatic calibrating method accumulated error in 4 minutes, can be ignored.

Because series of products of the present utility model are according to the GPS standard time, regularly send calibrating signal (time calibration), so use equipment of the present utility model (or product) time consistency very good.As very accurate when utilizing the utility model clock and watch to walk, the automaticity height does not need manually to calibrate, if such clock and watch are put together, can find that all clock and watch all point to the same time (hour hands, minute hand, second hand are all very consistent).These clock and watch can also provide current year, month, day information in addition.This clock and watch are as long as energized just can indicate current year, month, day, hour, min, second within several minutes.This clock can use in fields such as this hotel, restaurant, bank, post and telecommunications, communications and transportation, education, also can be used as medium-to-high grade household electrical appliance and enters into family, accurate clock when providing away for the whole society.This in addition clock and watch can also provide information such as local temperature, humidity, to prompt facility is set individual's birthday and great festivals or holidays etc.

Claims

One kind time calibration control device, comprising:

Receiver receives the mobile communication network signal or the paging signal that are synchronized to gps time;

Information processing and internal clock circuit and display circuit comprise:

Decoding circuit, described demoder and described receiver are coupled, and decode this system signal entrained GPS reference time from the system signal that described receiver receives,

Internal clocking,

Microprocessor is coupled with described decoding circuit, receives this GPS signal reference time from described decoding circuit; And be coupled with described internal clocking,, generate the real time, and calibration internal clocking with according to GPS reference time and from the clock signal of internal clocking;

Display circuit is coupled with described microprocessor, to show the current real time that receives from microprocessor.