TW200524297A - Method for decoding radio waves received from radio-controlled clock - Google Patents

Abstract

This invention relates to a method for decoding radio wave received from a radio clock. Wherein, the time unit is in second. The digital codes within one-second pulse-width interval are used to represent the year, month, day, hour, minute, second and the initialization mark of the time signal. Each set of received time signal all goes through a step of received second initialization, a step of received minute initialization and a treatment process for the received year, month, day, hour, minute, second time signal. Even though a reception error occurred in the first set or any set of time signal, the error is corrected in the subsequently received time signal. Eventually, it ensures that each received time is correct.

Description

200524297

V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a method for decoding a radio wave receiving radio wave, which is used to determine the definition of the pulse width and level of a time signal, which can avoid the distortion of the waveform of the upper cell and Noise affects and incorrectly interprets incorrect time, 包 = method for designating the start of new time and signal content. X-transmission [Previous technology] The invention of clocks and watches has made it possible for people to master the precise timing of time. For the time being, the timing technology is divided into mechanical straight time, quartz timekeeping and radio timekeeping, and the latter's timekeeping precision is the traditional mechanical and quartz timekeeping. The radio wave system is a technology that benefits from obsolescence. The accuracy of the timer depends on the signal reception, reliability, signal-to-noise ratio and decoding accuracy. The timing data of 9 broken radio clocks are radio waves. In order to obtain 'radio clocks must receive radio regularly or irregularly. 2 Timing = time error' It ’s not the same, so it ’s extended that “Every kind is not the same, but the square wave clock that decodes the time code works in a stable state and receives the shoulders. You must ensure that the electrical time is accurate. i 'Decoded EP0 60 6 73 3B1, which reveals electric turbid bamboo shoots-μ The sigh is like the European patent Emperor Sui is called Kauri Kali, who is constantly working or not working in the process of receiving signals & / The control method is to make the receiving circuit work or not to work. It is to control the power consumption of the receiving circuit, but make the receiving circuit; J = The purpose is to save electricity and not work. Switching at any time 200524297 V. Description of the invention (2) '------ = Stable = State, the unstable of the received signal will affect the decoding action and the output of the B-inch 仏, resulting in unstable decoding and round Produced by, brother The time signal contained in the radio signal of the radio clock is a long series of time-coded signals. After the microprocessor searches for t: 舯 二: 二 二 ΐίyear signals, it is converted into a display unit such as a second environmental factor, or The transmitting equipment deforms the electrical waveform. :,,,,, And are deformed, and affect the time signal:: zhi] f Decoding is wrong to judge the display time error caused by the master, if you enter or say, it is very likely to receive the error line that has generated the error ;: ： ", For the decoding result of the change, the helmet method made the instant # 不 、、、 波 'to give the correct %% error without error, but cannot guarantee the received time. 【Abstract】 If the method is Provide a radio wave clock receiving radio wave decoding narrow second =: ^^ 二, Lee " the beginning of the pulse width sign in the clock has been, each received _ group of month, day, day, day, day, minute, second and time The processing of the inter-signal signal = steps, and the case of receiving errors when receiving the year, month, hour, minute, etc., and then]] Any time in the group-signal signal can determine that the time of each reception is = time ^ Tiger will correct at any time, And the other purpose of the present invention is to take the responsibility of receiving radio waves. The radio wave clock enters the receiving state with a negative beam, and can improve the stability of the circuit operation and the working state until the receiving node / receiving k number. 200524297 V. Description of the Invention (3) The embodiment is shown in Figure 1, It is a sectional view of the structure of the mechanical timing mechanism of the present invention. The mechanical timing mechanism includes: the radio-controlled clock includes: an antenna magnetic rod 11 for inductive radio signals. A receiving circuit 12 for receiving radio signals and The amplified detection is transmitted to the microprocessor 13. A microprocessor 1 3 is the main control unit of the radio wave clock, which mainly controls the time display of the time display interface and the decoding of the receiving radio. No; it includes the display unit 15 and the pointer display unit 161 display! &Quot; Single unit 15 can be LCD or LED, which displays the time digitally, and the hand-indicator unit 16 is a mechanical display structure. The micro-processor control drive circuit 14 adjusts the pointer display unit 16 to the correct time ^. The characteristics of the time code of the bad radio waves received by the service month are described in the following example: Μ 、、、 Member 1 · Each minute packet + contains a complete set of time signals (marks), that is, it contains the year, month +, day, hour, minute, second and start bit marking information. 'Guangjian code format is 1 second 1 second pulse Width (PUlSe Width) stands for 0, 1 or marker. In the second, the ancient low!?: The wave width is 50 ms as shown in Figure 2A. The width of the radio wave is ㈣ms as shown in Fig. 2A, which means that this heart-the width of the low wave is 800ms as shown in Fig. 2A, which means that the signal is marked.丨 clothing this number 3. The starting position SP per second is the falling edge of the signal waveform every 1 second,

200524297 V. Description of the invention (4) With the definition of distinguishing every 1 second, the starting position sp can also be a time code of different countries or a positive or negative rotation signal of the receiving circuit for a rising edge. 4 • The parent group time signal (minutes, hours, days, and years) is an interval mark composed of two consecutive mark waveforms (as shown in the figure). The definition of the interpretation area on the 5th is shown in Figure 2D. The foregoing definition is the width of the waveform of the ^ bit signal, and the time from the starting position to the rising edge of the high potential is defined as the T1 interpretation area; the foregoing definition is 1 digit The width of the signal waveform is defined as the time from the starting position to the rising edge of the high potential as the T2 interpretation area; the aforementioned definition is the width of the waveform of the labeled digital signal and the time from the starting position to the rising edge of the high potential is defined as the T3 interpretation plaque area. After the radio-controlled clock enters the receiving state, it is the reference point of the start position SP of the receiving second. The microprocessor will set up a temporary register STN to store the complete parameters of each waveform. The highest potential of this waveform !! Take the width of the low potential and set a register stb waveform width value to compare the private waveform width with the preset waveform width value to find the initial W-: a £ SP reference point Contains the following steps = Step a. Set a time τ value, which is the reception time · Step b. Store the received time signal in the temporary cry 'vStep 0 · Determine the ancient value of the STN memory value of the temporary register, temporarily store Whether the waveform preset value of the STB, the second bit, and the low potential fall between step d and step S. If the result of step c is affirmative, say that the low potential value is stored in the temporary register STB < , Mark; & 疋 register STB has been replaced

200524297

If the result of step c is negative, initialize the register stn. F. Determine whether the comparison time NT has reached the reception time τ; if not yet, repeat the step a 'for the α beam. stn's day guard step g. End of reception time D, determine whether the STB memory value has been replaced again; force break step h. step a step i. The memory value is compared with the SP parameter high parameter ratio, must be shown in the fourth Step a. Step b. Step c. Step g; Step d. Step e. Time step f. Right register STB is not replaced 'Re-receive; Right register STB has been replaced, then the replaced temporary register The register uses the falling edge of the pulse as a reference point for the start position SP of the received second. After the two pseudo numbers decode the reference point of the start position SP of the second, the microprocessor starts from T2 to D3 (see Figure 2D: Private: Drink the waveform. After the wave office = find the reference point of the starting point MP of the receiving point, in this case, the factory has found two consecutive marks to complete the search (as shown in Figure 2C), such as ^ 歹 ', including the following steps: Timing reading at the reference point of the starting position SP. Set a timing time T to determine whether the time T is between T2 and T3. If it is not, execute the step scene. The number of times to read the signal n (.N + 1) in the T3-T2 area. ); Determine whether it is low potential, if it is, repeat step b, and read; πb a right is low potential, then increase the low power of the signal in the T3_T2 area

200524297 V. Description of the invention (6) Number of digits N1 (N1 = N1 + 1); Repeat step b, and proceed to the next time reading step g. · Determine whether to set the day guard T to 1 second, if not 1 second Then repeat step b; Step h · If time T is 1 second, reset time τ to 0; Step i · Determine whether the ratio of the low potential number N1 of the reading signal to the number of reading signals! ^ Is greater than a preset value (in (The preferred preset value of this embodiment is 70%); if not, step m is performed; step j · Let an MC add 1 to MC 'to indicate that the mark μ c has been received · Step k · Determine whether the mark MC has received 2 Go Mang I η η, μ /, judge z people, if not right, then go to step η Step 1: Continue it twice to mark the table has found the reference point of the receiving point starting position Μρ, Step I set the mark MC to 0, indicating that the received flag was not received; step η. Reset the number of times of the interpretation signal N and the interpretation letter to 0, and return to step b. . Day] Low potential-number of people N1 then find the reception second, minute start position sp, start reception time signal, the micro-processing cry @@ 2 will be turned on after W, meanwhile, if 乂 t owes the number of reception time group N: will exit Receiving = When the time signal is not received within two, micro processing: No. 5 and No. 5 :) When the time that was originally timed continues to go, the second step of reception =; = = This parameter automatically adds H to determine the timing parameter for each cycle. Is Ding between _ (Group i to Group 8 time

200524297 V. Description of the invention (7) Step c. Perform step 1 after receiving the time signal (mi nu te); Step d. Determine whether the timing parameter T is between 12 and 18 (12th to 18th groups) Time signal); Step e · Perform step 1 after receiving (h ur) time signal; Step f · Determine whether the timing parameter T is between 2 2 and 3 3 (2nd to 3rd group of time signals); Step g · After receiving the day ((iay)) time signal, execute step 1; Step h · Determine whether the timing parameter T is between 45 and 53 (45th to 53th time signal); Step i · Receive the year (year) time After the signal, execute step 1; Step j. Determine whether the timing parameter T is between 55 and 58 (55th to 58th time signals); Step k. After receiving the DST & Leap second & Leap year time signal, perform the step 1; Step 丨 · Determine whether the timing parameter T is 60, if not, go back to step a; Step m · Set the timing parameter T to 0; 乂 Ride n · Determine whether the number of N time groups (T rz N) has been received; = Determine whether the preset reception time has arrived. If the reception time to be set " arrives, repeat step a; preset time When the arrival is completed, the reception ends. ^ In the foregoing method, if the first group or any error condition, and the subsequent time step is received, the P group has completed the N group of time groups and the number of minutes of the original timing time is ended. The received time replaces the radio wave. A set of time signals in the set of time signals will be corrected at any time.

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Page 11 200524297 Brief description of the drawings [Simplified description of the drawings] Fig. 1 is a schematic block diagram of a radio clock of the present invention; Fig. 2A is a schematic diagram of a time code format waveform defined by the present invention; Fig. 2B is the present invention Schematic diagram of the start position waveform of the second in the defined time code format. Figure 2C is the intentional waveform of the start position of each set of time signals defined in the present invention. Figure 2D is the interpretation area of the time code format defined in the present invention. Waveform diagram, Figure 3 is a flowchart of the steps of judging the second reference point of the present invention; Figure 4 is a flowchart of the steps of judging the start position of each group of time signals according to the present invention, and Figure 5 is a flowchart of the steps of receiving the time signal according to the present invention Illustration. [Illustration of drawing number] 10 Radio-controlled clock 11 Antenna magnetic rod 1 2 Receiving circuit 1 3 Microprocessor 1 4 Driving circuit 1 5 Display unit 1 6 Pointer display unit

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Claims (1)

200524297 Scope of patent application ^ A kind of radio wave decoding method of radio wave clock, this early position uses narrow pulse width within one second. Qiu ', taking the seconds as the minutes and time signals for the sake of showing the year, month, time, and time at this time, all passed the following steps: Do not receive every set of time signals received by g. Read the starting position reference point of the second Steps:: Start from the starting position reference point, and judge the steps of receiving and updating the time signal from the starting position reference point. The method is as follows: The receiving radio wave decoding method of the radio wave clock described in the first item is the second digit: in the pulse wave of Γ, the low radio wave width of Λ is ~, that is, the table is 0.2, and the high and low search degree is 2 0 0msgp indicates this digital signal. 3. If the applied wave width is 800 mS, it indicates that this digital signal is a mark. Method, i = the connection of the pico clock of the itu project 2 & the radio wave decodes the i-line ^ ^ is a digital signal of 0 seconds, from the starting position to the high electric signal: "ΐ" means η interpretation area; The foregoing is defined as the time from the starting position of the reading area of the digital signal to the potential rising edge of T2. T2 is set to the high band. ^ 34 is defined as the mark of the digital signal—second, from the starting bit 4 such as; = rising edge time. Defined as the interpretation area of T3. Method, ° H H ϋ11 _ The first item of the radio clock to receive the radio wave decoding method d. Ratio; Γ HAI step ^ includes: high pulse position Ϊ :: pulse signal and micro Pre-stored time signal value package of the processor 丨 Er Xing Low Power 4 e · Replace the pre-stored time signal with a private signal of 4 Μ, time signal P, smart potential and low potential wave width Page 13 200524297 6. Scope of patent application --- f · Use the falling edge of the pulse of the replaced time signal as the reference point of A. For example, the receiving radio wave solution of the radio wave clock as described in the first position of the receiving second 5. The scope of the patent application, wherein step b includes: · g · microprocessor for high-speed interpretation of the waveform; h. Whether the result is in the aforementioned T2 to T3 area and the potential is low. I obtained the result of step b twice in a row, then the table has found the reference point for the start of the receiving point. σ 1 6 'Receiving the radio wave solution of the radio wave clock as described in item 1 of the scope of patent application', wherein step c is to receive the time signal of a specific group number, and the time operation is used to define the number of groups in a certain section as the receiving time. Time signal, time signal, 9 time signal, time signal, year time signal, etc., and after a certain number of time signals have passed through %%, the original time is replaced with a new reception time. The receiving signal is the receiving signal of the radio-controlled timepiece as described in item 6 of the scope of the patent application, in which the time signal of the specific group number i to 8 is transmitted. Qi Qi Ding is V. As described in Gan Shen's patent, the radio wave clock receiving radio wave decoder A 1 /, in this special group number time signal, the 12th to 18th group time e is Receive time signal. Door L soul system 9 If the J of the radio bell of the scope of the patent application arrives in the time data of the specific group, groups 22 to 33; the two parties receive the day time signal. The method of receiving electricity and waves of the radio-controlled timepiece as described in the item #% of the patent consumption scope item β, where the signal of the particular group is the time signal, is 45 to ^ 200524297. 6. The scope of patent application To receive the year time signal. 11 · The receiving radio wave decoding method of the radio wave clock as described in item 6 of the scope of the patent application, wherein among the time signals of the specific group number, the 5th to 58th group of time signals _ are DST & Leap second & Leap year time signal. 1 2 · The method of receiving radio wave decoding _ of the radio wave clock as described in item 1 of the scope of patent application, wherein if no time signal is received in step c, the time will continue to travel with the original time in the radio wave. Page 15