CN1025459C - digital watch with alarm - Google Patents

Abstract

The electronic timepiece with an alarm of the present invention is characterized in that one or more groups of indicating hands indicate a current time in an alarm non-set state by means of an alarm control device and a stepping motor, the indicating hands indicating the current time indicate the alarm set time in and after the alarm setting, and the indicating hands indicate the current time again in the alarm non-set state after the alarm is sounded, so that the operation of prohibiting the alarm from being sounded again and the operation of canceling the prohibited state of the alarm from being sounded again at the time of the alarm setting are omitted after the alarm is sounded, and the operation can be simplified.

Description

The invention relates to an alarm function of an electronic watch with an alarm.

There are two types of electronic watches with alarm bells with analog display, alarm bell ringing mode and alarm non-ringing bell mode. For the alarm bell ringing mode, the alarm setting time is still maintained after the alarm bell rings. , after a certain period of time, when the same time as the alarm setting time occurs again, the alarm will still ring.

However, in the conventional analog display electronic watch with an alarm, if you do not want the alarm to ring again after the alarm has sounded, you must disable the alarm from ringing by switching or the like. When setting the alarm again in the disabled state, the disabled state of the alarm ringing must be released, so the operation is complicated.

In addition, when using the timer formula such as making the alarm ring after about 10 minutes, the user must calculate the current time plus the time after 10 minutes, and adjust the alarm setting time to this time, which requires complicated operating procedures.

Therefore, the object of the present invention is to overcome above-mentioned shortcoming, save the operation that the alarm bell that does not want to make the alarm bell to ring again after the alarm bell rings the bell, and when the alarm bell is set again, save the need to remove the alarm clock. The operation in the prohibition state of the ringing bell simplifies the operation, reduces the external operating parts, realizes the multi-function of the alarm function, and simplifies the usage of the timer of the alarm function.

The electronic watch with alarm of the present invention has a plurality of stepping motors and indication hands driven by these stepping motors and external operating parts, alarm ringing device and alarm control device, and is characterized in that: one or more groups The indicator pointer relies on the alarm control device and the stepping motor to indicate the current time in the non-setting state of the alarm, and the indicator pointer indicating the current time indicates the alarm setting time during and after the alarm is set. After the alarm bell rings, it becomes the non-setting state of the alarm bell, and the above-mentioned indicating hands indicate the present time again.

According to the above-mentioned structure of the present invention, one or more groups of indicating hands rely on the alarm control device and the stepper motor to indicate the current time in the non-setting state of the alarm, and the indicating hands indicating the current time are in the setting of the alarm and the alarm. After the bell is set, the alarm setting time is indicated, and after the alarm rings, the alarm is not set, and the above-mentioned indicating hands indicate the present time again.

In addition, relying on the setting of the alarm setting time by the alarm control device, when the current time is consistent with the alarm setting time, it becomes the non-setting state of the alarm; in the fast forward setting of the alarm setting time , when the current time is consistent with the alarm setting time, the fast-forward setting of the alarm setting time will stop.

Fig. 1 is the block diagram of the integrated circuit of an embodiment of the electronic watch with alarm bell of the present invention;

Fig. 2 is the block diagram of the specific structure example of the precision timing circuit 211 of Fig. 1;

Fig. 3 is the block diagram of the specific structure example of the motor needle movement control circuit 212 of Fig. 1;

Fig. 4 is the block diagram of the specific structure example of the needle movement reference signal forming circuit 220 of Fig. 1;

Fig. 5, Fig. 6, Fig. 7 and Fig. 8 are the motors output by the 1st driving pulse forming circuit 221, the 2nd driving pulse forming circuit 222, the 3rd driving pulse forming circuit 223 and the 4th driving pulse forming circuit 224 of Fig. 1 respectively. Timing diagram of driving pulses Pa, Pb, Pc and Pd;

Fig. 9 is the block diagram of the concrete structural example of the motor clock signal control circuit 226,227,228 and 229 of Fig. 1;

Figure 10 is a plan view of an embodiment of the analog electronic watch of the present invention;

Figure 11 is a sectional view of the gear train used for the usual hour and minute indication;

Figure 12 is a sectional view of the gear train used for the usual time second indication;

Figure 13 is a sectional view of the gear train for chronograph seconds indication;

Fig. 14 is a sectional view of a gear train for chronograph minute indication and chronograph second indication;

Fig. 15 is a sectional view of a gear train for an alarm setting time indication;

Fig. 16 is the circuit wiring diagram of the embodiment of Fig. 10;

Fig. 17 is an appearance view of the finished assembly of the multifunctional electronic watch of this embodiment;

Fig. 18 is a flowchart for indicating usual times;

Figure 19 is a flowchart of the precision timing function;

Figure 20 is a flowchart of the timer function;

Figure 21 is a flowchart of the alarm function;

Figure 22 is a flow chart of the needle movement method of the motor;

Fig. 23 is a block diagram of a digital display device added to the first embodiment in the second embodiment.

As shown in Figure 1, CMOS-IC20 is a single-chip microprocessor used to simulate electronic watches. On a piece of silicon, the central CPU is the center, integrating program memory, data memory, 4 motor drivers, and motor operation. Needle control circuit, sound generator and interrupt control circuit, etc. Fig. 1 will be described below.

201 is a central CPU, which is composed of arithmetic unit, arithmetic register, address control register, stack pointer, instruction register and instruction decoder, etc., and is connected with peripheral circuits through address bus and data bus by means of storage image input/output.

202 is a program memory, which is constituted by a mask read-only memory consisting of 2048 words x 12 bits, and stores software for operating the integrated circuit.

203 is an address decoder of the program memory 202 .

204 is a data memory, which is composed of a random access memory composed of 112 words×4 bits, and is used as a timer of various electronic watches and a counter for memorizing the position of each pointer.

205 is an address decoder of the data memory 204 .

206 is an oscillating circuit, which uses the tuning-fork crystal oscillator connected to the Xin and Xout terminals as the vibration source, and oscillates at a frequency of 32768 Hz.

207 is an oscillation stop detection circuit. When the oscillation circuit 206 stops oscillating, it detects the oscillation stop signal and resets the system.

208 is the first frequency dividing circuit, which outputs the 16 Hz signal Φ16 after sequential frequency division of the 32768 Hz signal Φ32K output by the oscillator circuit 206.

209 is a second frequency division circuit, which divides the frequency of the 16 Hz signal Φ16 output by the first frequency division circuit 208 into various signals up to the 1 Hz signal Φ1. In addition, the state of each sub-band from 8 Hz to 1 Hz can be read into the central CPU 201 by software.

In addition, in the integrated circuit of this embodiment, a 16 Hz signal Φ16 , an 8 Hz signal Φ8 , and a 1 Hz signal Φ1 are used as the timer interrupt signal Tint for processing such as timekeeping by an electronic watch. The timing interrupt signal Tint occurs on the trailing edge of each signal, and the reading, reset and masking of each interrupt cause are all performed by software, and the reset and masking can be performed separately according to each cause.

210 is a sound generator, which is used to form a buzzer driving signal and output it to the AL terminal. The driving frequency, on/off, and ringing form of the buzzer driving signal can be controlled by software.

211 is a precision timing circuit, the specific structure of which is shown in Figure 2. When a 1/100 second precision timer is formed, the movement of the 1/100 second hand is controlled by hardware, which can significantly reduce the burden on the software.

In FIG. 2, 2111 is a clock signal forming circuit, which forms a 100 Hz signal Φ100 as a reference clock signal for precision timing measurement from a 512 Hz signal Φ512 and a frequency of 100 Hz for forming a 1/100 second hand drive pulse Pf. A clock pulse Pfc with a width of 3.91ms. 2112 is a 50-ary precision timing counter, used to count Φ100 through the AND gate 2119, and rely on the control The chronograph reset signal Rcg output from the signal forming circuit 2118 is reset. 2113 is a register which stores the contents of the chronograph counter 2112 when the control signal forming circuit 2118 outputs the separation instruction command signal SP. 2114 is a 50-base needle position counter, which stores the indicated position of the 1/100 second hand by counting the driving pulse pf of the 1/100 second hand, and relies on the signal output by the control signal forming circuit 2118 to memorize the 0 position of the 1/100 second hand Rhnd resets. 2115 is a coincidence detection circuit, which compares the contents of the register 2113 and the needle position counter 2114, and outputs a coincidence signal Dty when the two coincide. 2116 is a 0 position detection circuit, when it is detected that the needle position counter 2114 is 0, it outputs a 0 detection signal Dto. 2117 is the 1/100 second hand movement control circuit, when the chronograph counter 2112 and the needle position counter 2114 are in agreement when the chronograph counter 2112 and the needle position counter 2114 are in the same state when the 1/100 second hand is in motion and the chronograph is being measured, the clock pulse pfc is used to separate and display And when the measurement is stopped, if the contents of the register 2113 and the needle position counter 2114 are inconsistent, the clock pulse Pfc is passed; in the non-action state of the 1/100 second hand, during the measurement of precise measurement, the content of the needle position counter 2114 is 0 When the value is other than the value, Pfc is pulsed by the hour hand. 2118 is a control signal forming circuit, which forms and outputs the start signal St commanding the start/stop of chronograph measurement, the separation signal Sp commanding separation display/release of separation display, and the chronograph commanding chronograph measurement reset according to software instructions. The reset signal Reg, the 0-position signal Rhnd for memorizing the 0-position of the 1/100 second hand, and the signal Drv commanding the action/non-action of the 1/100 second hand. In addition, the 1/100 second hand driving can be performed only by the stepping motor C. The chronograph interrupt signal CGint is generated by the 5 Hz carry signal Φ5 output by the chronograph counter 2112, and the chronograph measurement process of less than 1/5 second can be performed by software.

212 is a motor needle movement control circuit, the specific structure is as shown in Figure 3, it outputs motor drive pulses to each motor driver according to the instructions of the software. Next, it will be described with reference to FIG. 3 .

219 is the control circuit of the motor needle movement mode, which memorizes the needle movement modes of each motor according to the instructions of the software, and at the same time, forms and outputs Sa for selecting the forward rotation drive I, Sb for selecting the forward rotation drive II, Sc for selecting the reverse drive I, Select the control signals such as Sd for the reverse drive II and Se for the forward correction drive.

220 is a needle movement reference signal forming circuit, the specific structure is shown in Figure 4, it forms and outputs the needle movement reference hour hand signal Cdrv according to the instructions of the software.

In FIG. 4, 2201 is a 3-bit register, which stores data for determining the frequency of the needle movement reference clock signal Cdrv according to software instructions (output signal of the address decoder 2202). 2203 is a 3-bit register, which reads and memorizes the data stored in the register 2201 at the trailing edge of the needle reference clock signal Cdrv output by the programmable frequency divider 2205. 2204 is a decoder, which outputs numbers such as 2, 3, 4, 5, 6, 8, 10 and 16 in binary form according to the data stored in register 2203. 2205 is a programmable frequency divider, assuming that the value output by the decoder 2204 is n, it divides the 256 Hz signal Φ256 output by the first frequency divider 208 into 1/n and outputs it. Therefore, the needle movement reference signal forming circuit 220 can select the needle movement reference clock signal from 8 frequencies of 128 Hz, 85.3 Hz, 64 Hz, 51.2 Hz, 42.7 Hz, 32 Hz, 25.6 Hz and 16 Hz according to the instructions of the software. The frequency of Cdrv. In addition, the frequency change of the hand reference clock signal Cdrv can be performed when the register 2203 reads data, and the data read into the register 2203 is carried out synchronously with the hand reference clock signal Cdrv, so the previous frequency fa is switched to the next frequency In the case of fb, the interval of 1/fa can be guaranteed.

In addition, when the forward rotation drive I and the reverse rotation drive are continuously performed, the frequency of the hand movement reference clock signal Cdrv is limited to 64 Hz or less.

221 is a first drive pulse forming circuit which forms and outputs a drive pulse Pa for forward rotation drive I shown in FIG. 5 .

222 is a second driving pulse forming circuit which forms and outputs the driving pulse Pb for forward rotation driving II shown in FIG. 6 .

223 is a third driving pulse forming circuit which forms and outputs the driving pulse Pd for forward rotation driving I shown in FIG. 7 .

224 is a fourth driving pulse forming circuit which forms and outputs the driving pulse PC for reverse driving II shown in FIG. 8 .

225 is the fifth drive pulse forming circuit, which forms and outputs the pulse group Pe used for correction drive (normal drive pulse P ₁ , correction drive pulse P ₂ , pulse P during AC magnetic field detection published in JP-A-60-260883 _3. AC magnetic field detection pulse SP ₁ and rotation detection pulse SP ₂ ).

226, 227, 228 and 229 are motor clock signal control circuits, the specific structure is as shown in Figure 9, according to the instructions of the software to control the needle movement of stepper motor A, stepper motor B, stepper motor C and stepper motor D respectively number of pulses.

In Fig. 9, 2261 is a 4-bit register, which memorizes the number of needle movement pulses specified by the software. 2262 is a 4 bit up counter. It counts the needle movement reference clock signal Cdrv passing through the AND gate 2274, and resets by means of the control signal Sreset. 2263 is a coincidence detection circuit, it will register 2261 and the up-down counter 2262 for comparison, and when the two are consistent, the consistency signal Dy is output. 2264 is an all-ones detection circuit. When the content of the register 2261 is all ones, it outputs an all-ones detection signal D15. 2265 is a trigger signal generation circuit for forming motor drive pulses, consisting of NOT gates 2266 and 2267, and a three-input AND gate 2268. 2. Two-input AND gate 2269 and two-input OR gate 2270. When the register 2261 is set to all 1s (15), the repetitive motor pulses will be output continuously until data other than all 1s are set. When all 1s are set, When the data is other than 1, only the motor pulse corresponding to the data is output, and the motor pulse output is stopped until the next data is set. 2271 is a two-way switch, when the control signal Sread is output, it is turned on, and the data of the forward counter 2262 is sent to the data bus 2272. The control signal forming circuit is formed and output according to the instructions of the software, which is used to set the register 2261. The signal Sset of the needle pulse number, the signal Sread for reading the data of the forward counter 2262, and the signal Sreset for resetting the register 2261 and the forward counter 2262. In addition, when the signal Sread is output, the needle movement reference clock signal Cdrv is prohibited to pass through by means of the NOT gate 2273 and the AND gate 2274 . At this time, the signal Sreset must be generated to reset the register 2261 and the up-down counter 2262 after reading. In addition, when the coincidence detection circuit 2263 detects a coincidence signal (when the output of the set number of pulses is completed), each motor generates a motor control interruption signal (Mint). When the motor control interrupt signal is generated, the software can judge which motor has the interrupt signal, and it can be reset after reading it.

230, 231, 232 and 233 are trigger signal forming circuits, which output the trigger signals corresponding to the needle movement mode control signals Sa, Sb, Sc, Sd and Se output by the motor clock signal control circuit and the needle movement mode control circuit 219 of the motor Tr, as 221, 222, 223, 224 and 225 and other drive pulse control circuits, is used to form trigger signals Sat, Sbt, Sct, Sdt and Set of motor drive pulses Pa, Pb, Pc, Pd and Pe to pass.

234, 235, 236 and 237 are motor drive pulse selection circuits, which output motor drive pulses Pa, Pb, Pc, Pd corresponding to the needle movement mode control signals Sa, Sb, Sc, Sd, Se from each drive pulse forming circuit , Pe to select and output the drive pulse required by each stepping motor. The above description of FIG. 3 is all over.

213, 214, 215 and 216 are motor drivers, which alternately output the motor drive pulses output by the motor drive pulse selection circuit to the two output terminals of each motor drive circuit to drive each stepper motor.

217 is an input control and reset signal forming circuit, which processes the inputs of switches such as A, B, C, D, RA1, RA2, RB1, and RB2 and the inputs of K, T, and R. When any one of the above A, B, C, D or any one of RA1, RA2, RB1, RB2 is input, the switch interrupt signal Swint will be generated. In this case, the reading and resetting of the interrupt factors are performed by software. In addition, each input terminal is pulled down to Vss, and the data is 0 in the open state, and the data is 1 in the state connected to VDD.

The K terminal is the specification conversion terminal, and two specifications can be selected according to the data of the K terminal. In addition, the data read-in of the K terminal depends on the software.

The R terminal is the system reset terminal. When the R terminal is connected to VDD, the central CPU, the frequency division circuit and other peripheral circuits can be forcibly set to the initial state by using hardware.

The T terminal is the test mode conversion terminal. In the state where the RA2 terminal is connected to VDD, by inputting the clock signal into the T terminal, 16 test modes for testing the peripheral circuit can be converted. As the main inspection methods, there are forward rotation I confirmation method, forward rotation II confirmation method, reverse rotation I confirmation method, reverse rotation II confirmation method, corrected drive confirmation method and precise timing 1/100 second confirmation method, etc. Among these confirmation methods, Each motor drive pulse output end automatically outputs a motor drive pulse.

For system reset, in addition to the method of connecting the R terminal to VDD, it can also be carried out by using the simultaneous input of the switch. In this integrated circuit, when one of A or C is input simultaneously with B and RA2, and A, B When one of , C and RA2, RB2 are input at the same time, the system can be forced to reset by relying on hardware.

In addition, the reset functions that can be handled by software include frequency division circuit reset and peripheral circuit reset. When peripheral circuits are reset, the frequency division circuit can also be reset.

218 is an interrupt signal control circuit, for the switch interrupt signal, the precision timing interrupt signal and the motor control interrupt signal, according to the priority order of each interrupt signal, the memory before reading and the reset process after reading are carried out.

200 is a voltage stabilizing circuit, which forms a low stable voltage of about 1.2V from the battery voltage (about 1.58V) applied between VDD-Vss, and outputs it to the VSI terminal.

The above description of FIG. 1 comes to an end.

As detailed above,

CMOS-IC20 has the following characteristics for driving stepper motors, and is very suitable for use as an integrated circuit for multi-pin multi-function analog electronic watches. Its characteristics are:

①It has motor drivers 213, 214, 215 and 216, which can drive 4 stepping motors at the same time;

② It has a motor needle movement control circuit 219, a drive pulse forming circuit 221-225, and a motor drive pulse selection circuit 234-237. Depending on the software, the four stepping motors can respectively perform three types of forward rotation drive and two types of reverse rotation drive;

③ It has a needle movement reference signal forming circuit 220, and the needle movement speed of each stepping motor can be freely changed by software;

④ There are motor clock signal forming circuits 226-229 corresponding to the four stepping motors respectively, and the number of needle movement pulses of each stepping motor can be freely set by software.

Next, a plan view of an embodiment of the multifunctional analog electronic watch of the present invention is shown in FIG. 10 and explained. This embodiment has used 4 stepping motors, has realized multifunctionality. Next, it will be described with reference to FIG. 10 .

1 is the bottom plate made by resin molding, and 2 is the battery. 3 is a stepper motor A used to indicate the usual time, which is composed of a magnetic core 3a made of high magnetic permeability material, a coil assembly 3b, a stator 3c and a rotor 4. The coil assembly 3b consists of a coil wound on the magnetic core 3a and two ends passing through The coil lead plate and the coil frame that have been treated at the conduction end are composed of; the stator 3c is made of high magnetic permeability material; the rotor 4 is composed of a rotor magnet and a pinion; in addition, 5, 6, 7, and 8 are respectively the fifth gear, No. 4 gear, No. 3 gear and No. 2 gear, 9 is back gear, and 10 is barrel gear. The second gear and the cylindrical gear are arranged at the center of the electronic watch, and rely on the gear train structure to perform the minute indication and hour indication of the usual time at the center of the electronic watch. Fig. 11 is a cross-sectional view of a meshing state of a gear train for normal hour and minute indication. As shown, the rotor pinion 4a meshes with the fifth gear 5a, and the fifth pinion 5b meshes with the fourth gear 6a. In addition, the fourth pinion 6b meshes with the third gear 7a, and the third pinion 7b meshes with the second gear 8a. The reduction ratio from the rotor pinion 4b to the second gear 8a is 1/1800, and the rotor 4 rotates half a circle in 1 second, and the second gear rotates 1 circle in 3600 seconds, that is, in 60 minutes, so that the normal time can be performed. sub-instructions. 11 is a minute hand for minute indication, which is fitted on the front end of the second gear 8. In addition, the second pinion 8 b meshes with the back gear 9 a , and the back pinion 9 b meshes with the barrel gear 10 . The speed reduction ratio from the second pinion 8b to the cylindrical gear 10 is 1/12, and it is possible to indicate the hour of the normal time. 12 is an hour hand for indicating the hour, which is fitted on the front end of the cylindrical gear 10 . In addition, in Fig. 10, 13 is the small second gear, which is arranged on the axis of the 9 o'clock direction of the electronic watch, relying on the gear train structure composed of the rotor 4, the fifth gear 5 and the small second gear 13, at 9 o'clock of the electronic watch The second indication of the usual time is performed on the axis of the hour direction. Fig. 12 is a cross-sectional view of the meshing state of the gear train for the usual time-of-day second indication. As shown, the fifth pinion 5b meshes with the small second gear 13a. The reduction ratio from the rotor pinion 4a to the small second gear 13 is 1/30, and the rotor 4 rotates 180° in 1 second, and the small second gear 13 rotates 1 circle in 60 seconds, that is, 6 rotations in 1 second °, so that the second indication at the usual time can be carried out. 14 is a small second hand used for second indication, which is fitted on the front end of the small second gear 13 .

In FIG. 10, 15 is a stepping motor B used for chronograph second hand indication, which is composed of a magnetic core 15a made of high magnetic permeability material, a rotor 16, a coil assembly 15b and a stator 15c. The coil assembly 15b is composed of the coil on 15a, the coil lead plate and the coil frame whose two ends have been treated with conductive ends; the stator 15c is made of high magnetic permeability material; the rotor 16 is composed of a rotor magnet and a rotor pinion. In addition, 17, 18, and 19 are respectively the 1/5 second CG intermediate gear, the 1/5 second CG second intermediate gear and the 1/5 second CG gear, and the 1/5 second CG gear is arranged at the center of the electronic watch. Relying on this gear train structure, the seconds indication of the chronograph is performed at the center position of the electronic watch. Fig. 13 is a cross-sectional view of a meshing state of a gear train for chronograph second indication. As shown in the figure, the rotor pinion 16a meshes with the 1/5 second CG first intermediate gear 17a, and the 1/5 second CG first intermediate pinion 17b meshes with the 1/5 second CG second intermediate gear 18a. In addition, the 1/5 second CG second intermediate pinion 18b meshes with the 1/5 second CG gear 19a. The reduction ratio from the rotor pinion 16a to the 1/5 second CG gear 19a is 1/150. The rotor 16 rotates 180° in 1/5 second according to the electrical signal of the CMOS-IC20. Therefore, the 1/5 second CG gear 19 rotates 1.2° in 1/5 second, that is, rotates 1.2×5 steps in 1 second, and can carry out chronograph second indication of 1/5 second scale. 21 is a 1/5 second CG hand used for chronograph second indication, fitted in the front end of the 1/5 second CG gear. In addition, the 1/5 second CG needle 21 also serves as a timer setting needle for timer time setting. The action of the timer will be introduced later.

27 is the stepping motor C that is used for the minute indication of precision timing and the second indication of the time passed by the timer. It is made of a magnetic core 27a made of high magnetic permeability material, a coil assembly 27b, a stator 27c and a rotor 28. The coil assembly 27b is formed by winding on The coil on the magnetic core 27a is composed of a coil lead plate and a coil frame whose two ends have been conducted and processed; the stator is made of high magnetic permeability material; the rotor is composed of a rotor magnet and a rotor pinion. In addition, 29 and 30 are the sub-CG intermediate gear and the sub-CG gear respectively, and the sub-CG gear 30 is arranged at 12 of the electronic watch. on the time axis. Depending on the structure of this gear train, the minute indication of the chronometer and the second indication of the elapsed time of the timer are performed on the axis of the 12 o'clock direction of the electronic watch. Fig. 14 is a sectional view of a gear train meshing state for chronograph minute indication and timer elapsed time second indication. As shown, the rotor pinion 28a meshes with the minute CG intermediate gear 29a, and the minute CG intermediate pinion 29b meshes with the minute CG gear 30a. The reduction ratio from the rotor pinion 28a to the minute CG gear 30a is 1/30. In the chronograph mode, the rotor 28 rotates at a rate of 360° within 1 minute according to the electric signal of the CMOS-IC 20 , that is, at a rate of 180°×2 steps. Therefore, the minute CG gear turns 12° in 1 minute, that is, it turns 360° (12°×30 steps) in 30 minutes, and can perform minute indication for 30-minute precision timing. 31 is the minute CG needle used for precision timing and minute indication, which is fitted on the front end of the minute CG gear. The combination of the minute CG hand 31 and the above-mentioned 1/5 second CG hand 21 enables chronograph second indication with a minimum reading unit of 1/5 second and a maximum measurement of 30 minutes. Next is the timing mode. At this time, the rotor 28 rotates in the opposite direction to the precision timing mode according to the electrical signal of the CMOS-IC20, and rotates 180°×1 step in 1 second, and the minute CG needle 31 moves counterclockwise by 1 The second scale rotates, and the second indication of the elapsed time of the timer of 60 seconds per cycle is possible. In addition, at this time, the rotor 16 rotates in the opposite direction to that in the chronograph mode according to the electric signal of the CMOS-IC 20, and rotates 180° x 5 steps in 1 minute. Therefore, the 1/5 second CG hand 21 rotates in the counterclockwise direction at a rate of 6° per minute to indicate the minutes of the elapsed time of the timer. In addition, it is the setting of the timer time. When the second crown 23 in FIG. Turning in units of 6° (1 minute unit on the scale) can indicate the set time of the timer up to 60 minutes.

Among Fig. 10, 32 is the stepper motor D that is used for alarm setting time indication, is made of magnetic core 32a, coil assembly 32b, stator 32c and rotor 33 made of high magnetic permeability material, and coil assembly 32b is wound on the magnetic core The coil on 32a is composed of a coil lead plate and a coil frame that have been treated at the ends to make its two ends conduction; the stator 32c is made of high magnetic permeability material; the rotor 33 is composed of a rotor magnet and a rotor pinion. In addition, 34, 35, 36 and 37 are the AL intermediate gear, the AL minute gear, the AL back gear and the AL cylindrical gear respectively, and the AL minute gear 35 and the AL cylindrical gear are arranged on the axis at 6 o'clock of the electronic watch. Relying on this gear structure, the alarm setting time is indicated on the axis of the electronic watch at 6 o'clock. Fig. 15 is a cross-sectional view of the meshing state of the gear train for displaying the alarm set time. As shown, the rotor pinion 33a meshes with the AL intermediate gear 34a, and the AL intermediate pinion 34b meshes with the AL minute gear 35a. In addition, the AL branch pinion 35 b meshes with the AL back gear 36 a , and the AL back pinion 36 b meshes with the AL cylindrical gear 37 . The reduction ratio from the rotor pinion 33a to the AL minute gear 35a is 1/30, and the reduction ratio from the AL minute gear 35b to the AL barrel gear 37 is 1/12. 38 is the AL minute hand, which fits in the AL minute gear 35 The front end, 39 , is the AL hour hand, which is fitted on the front end of the AL cylindrical gear 37 .

When the second crown is at the first step, it is the alarm B mode. If the C switch 26 is pressed, the rotor 23 will rotate 180° according to the electrical signal of the CMOS-IC 20, so the AL minute hand will rotate 0.5°. In this way, the alarm setting time can be set in units of 1 minute, and the maximum setting is 12 hours. When the current time is consistent with the set time of the alarm, the alarm will ring. In the alarm mode B, after 12 hours have elapsed after the alarm rings, when the current time coincides with the set alarm setting time again, the alarm rings again. When the second crown is at the 0th step, it is the alarm A mode, and when the alarm is not set, the AL minute hand 38 and the AL hour hand 39 indicate the current time. At this time, the rotor 33 rotates 180° in 1 minute according to the electric signal of the IMOS-IC 20 . Therefore, the AL minute hand 38 performs a 1-minute movement. When the C switch is pressed, the same as the alarm B mode, the alarm is set, and the AL minute hand 38 stops moving for 1 minute. When the current time is consistent with the set alarm time, the alarm will ring a different sound from the alarm B mode. After the alarm rings, the setting state of the alarm will be released, and the AL minute hand 38 will move again for 1 minute. Needle. In addition, during the correction process, when the current time coincides with the alarm setting time, the alarm setting state will be released. In addition, especially in the fast-forward correction process, when the current time coincides with the alarm setting time, the correction operation is interrupted.

This concludes the description of FIG. 10 .

FIG. 16 is a circuit connection diagram of CMOS-IC20 and other electronic components. In Figure 16, 2 is silver oxide battery (SR928W), 3b is the coil assembly of stepping motor A, 15b is the coil assembly of stepping motor B, 24 is A switch, 25 is B switch, 26 is C switch, 27b is the coil assembly of stepping motor C, 32b is the coil assembly of stepping motor D, 55 and 56 are buzzer driving components, 55 is a boost coil, 56 is a micro-mode transistor with protection diode, 57 is integrated in The chip capacitor in CMOS-IC20 used to suppress the voltage fluctuation of the voltage regulator circuit has a capacitance of 0.1μF, and 58 is an ultra-small tuning fork crystal oscillator 46a integrated in CMOS-IC20 as the vibration source of the oscillation circuit Be the switch that constitutes a part of locking bar 46, 59a is the switch that constitutes a part of the 2nd mandarin duck 59, and 64 is the piezoelectric buzzer that is close to the electronic watch case back cover, does not show among Fig. 10. In addition, the switches 24, 25 and 26 are push-button switches that enable input only when pressed. The switch 46a is a switch linked with the first crown 22. When the first crown 22 is at the first step, it is closed with the RA1 terminal; when it is at the second step, it is closed with the RA2 terminal; when it is at the normal position, it is open . In addition, the switch 59a is a switch interlocked with the second crown 23. When the second crown 23 is at the first step, it is closed with the RB1 terminal; when it is at the second step, it is closed with the RB2 terminal; It's open.

Fig. 17 is an appearance view of the assembled multifunctional electronic watch of this embodiment. The specification and operation method of this embodiment will be briefly described below based on the flow charts in Fig. 17 and Figs. 18-22.

In Fig. 17, 40 is a casing, and 41 is a dial. On the dial, 42 is a normal time indication part, 43 is a chronograph minute indication and a timer elapsed time second indication part, and 44 is an alarm setting time indication part.

Introduce the usual time first. As mentioned earlier, it is indicated by the small second hand 14, the minute hand 11 and the hour hand 12 that move hands every second. By pulling out the first crown 22 to the second step, the time can be adjusted. At this time, rely on the correction control lever 47 coupled with the mandarin duck 45 and the lock lever 46 shown in Figure 10 to correct the fourth gear 6, stop the rotor 4, and stop the movement of the small second hand. In this state, if the first crown 22 is turned, the rotational force will be transmitted to the back gear 9 through the crown gear 48 and the small iron gear 50 . Since the No. 2 gear 8a has a certain slip torque and is combined with the No. 2 pinion 8b, even when the No. 4 gear 6 is corrected, the small iron gear 50, the back gear 9, the No. 2 pinion 8b and the cylinder Shape gear 10 also rotates. Therefore, the minute hand 11 and the hour hand 12 rotate, so that an arbitrary time can be set.

Fig. 18 is a flow chart for displaying the normal time. As shown in Fig. 18, when a 1 Hz interrupt signal is input, the signal whether the switch RA ₂ is disconnected is read in; when RA ₂ is in the disconnected state, the motor running The needle mode control circuit 219 sets the positive rotation correction drive of the stepping motor A, and sets the number of needles to be 1 for the motor hour hand signal control circuit A226; when the switch RA ₂ is on (time correction state), the motor is stopped drive, and momentarily reset the divider circuits 208 and 209 so that the motor can be driven 1 second after RA ₂ is disconnected.

Fig. 19 is a flowchart showing the chronograph function. The symbol "CG" used in Fig. 19 is an abbreviation for chronometer. In addition, "CG start" shows the state in which the chronograph measurement and the separation display are cancelled. When the second watch handle 23 is in the normal position (when both RB ₁ and RB ₂ are off), it is in the chronograph mode, and whenever the A switch is input, the start and stop of the chronograph measurement are repeated. When the chronograph starts, the CG 1/5 second counter forming part of the data memory 204 is incremented by 1 according to the CG interrupt signal, and the 1/5 second CG needle 21 moves with the 1/5 second scale. At the same time, when 1/5 second After the 5-second counter counts to 1 minute, the CG minute counter constituting a part of the data memory 204 is incremented by 1, and the CG minute hand 31 moves at the 1-minute scale. In addition, at the time of "CG start", if the B switch is input, it will become the separation instruction state, and in the separation instruction state, when the B switch is input, it will become CG open as ", 1/5 second CG hand 21 and minute CG hand 31 fast Advance to the indicated measurement time. In addition, when the chronograph measurement is stopped, when the B switch is input, the chronograph measurement is reset, and each CG hand fast-forwards to the state indicating the 0 position. Regarding the method of fast-forwarding the needle, Shown in the flow chart of Figure 22.

Fig. 20 is a flowchart showing the timer function. The setting time of the timer is indicated by the 1/5 second CG needle 21. When the second crown 23 is at the first step (when RB1 is turned on), it is a timer mode. When the timer is set, if the B switch is input, the timer set time will increase by 1 minute, 1/5 The second CG needle 21 is moved in units of 1 minute (5 steps). The scale on the dial 41 indicated by the 1/5 second CG needle 21 indicates the set time of the timer, and the maximum can be set to 60 minutes. The start and stop of the timer is controlled by the A switch 24 . When the action of the timer starts, the minute CG hand 31 moves counterclockwise for 1 second and 1 second, and the 1/5 second CG hand 21 moves counterclockwise for 1 minute and 1 minute to indicate that the timer has passed time. In addition, when the timer is set to 1 minute and the last minute, the minute CG hand 31 stops moving, the 1/5 second CG hand 211 second by second, and the pre-alarm bell sounds from the last 3 seconds before, When it reaches 0 seconds, a bell will sound when the timing is up, and the timer action will end.

Fig. 21 is a flowchart showing the alarm function. As shown in Figure 21(a), when the second crown 23 is at the 0th step or the 1st step, that is, when RB ₂ is off, if the C switch 26 is pressed, the motor drive pulse selection circuit D237 will follow the instructions of the CPU Select forward rotation drive II, set the register of the trigger signal forming circuit D233 (hereinafter referred to as the motor pulse register) to 15, and start the fast-forward correction of the alarm hour and minute. In the alarm A mode, that is, under the condition that the second crown is at the 0th step, when the alarm is in the non-setting state (the state where the alarm ringing is prohibited), the time when the correction starts is the alarm setting time , so as to cancel the state of prohibiting the alarm ringing, that is, to become the alarm setting state. When outputting 15 motor pulses, the trigger signal forming circuit D233 generates a control interruption signal. When the control interruption signal occurs, as shown in Figure 21(b), if it is the alarm B mode, the alarm time B increases by 15, and the motor pulse register is loaded with 15 again, and the correction is continued. In the alarm A mode, when the difference between the current time and the alarm time A is greater than 15, the alarm time A is increased by 15. As a result, when the difference between the current time and the alarm time A becomes less than 15, the The motor pulse register sets this difference. At this time, since the hour and minute hands of the alarm will display the current time when the next control interrupt signal occurs, the motor pulse register is set to 0 to interrupt the correction, prohibit the alarm from ringing, and cancel the alarm setting state. If the C switch is turned off, then as shown in Figure 21 (a), the forward counter 2262 (hereinafter referred to as motor pulse forward counting) is read in, and the fast forward of the AL minute hand 38 is stopped. At this time, since the AL minute hand 38 has advanced by an amount corresponding to the read value since the previous control interruption signal was generated, correction is performed. In addition, in the alarm A mode, at this time, when the current time coincides with the alarm time, the alarm is prohibited from ringing, and the alarm is not set. The ringing of the alarm is shown in Figure 21(c). After counting the 1 Hz interrupt signal, the alarm rings when the current time coincides with the alarm time. But, under the alarm bell A mode, when the alarm bell ringing is prohibited, the alarm bell ringing is not performed, and the alarm bell AL minute hand 38 is moved by 1 minute. In addition, in the alarm A mode, the alarm setting state is canceled after the alarm rings, and further alarm ringing is prohibited.

In this embodiment, the alarm control device controls the current time, the alarm setting time A and the alarm setting time B respectively with absolute values, but it is also possible to use the alarm setting time A and the current time The relative value of the difference and the difference between the alarm setting time B and the current time is controlled.

In addition, in this embodiment, a CPU is used for the control device, but it can also be realized by only logic circuits.

The normal time is corrected by rotating the second crown in the state of the second step through the AL crown gear 49 and the AL pinion gear 51 shown in FIG. 10 .

Fig. 22 is a flow chart of the needle movement method of each motor. Figure 22(a) is the motor needle movement method when the number of needle movements is less than 14, and Figure 22(b) and (c) are the fast-forward (128 Hz) needle movement methods when the number of needle movements is greater than 15. Used in the figure: motor pulse register" refers to the register 2261 of Fig. 9.

This completes the description of the embodiment.

Next, a second embodiment of the present invention will be described.

This embodiment is shown in FIG. 23, and a liquid crystal driver and a latch 3001 and a liquid crystal display device 3002 are added to the first embodiment. The liquid crystal display device 3002 displays the current time, current time and other second Time, calendar, alarm time, timer time, mode and precision timing time etc. are digitally displayed.

As mentioned above, according to the present invention, by relying on the alarm control device and the stepping motor, one or more groups of indicating pointers indicate the current time in the alarm non-setting state, and the above-mentioned indicating pointers indicating the current time are activated when the alarm is set. After the alarm is set, it indicates the alarm setting time. After the alarm rings, the alarm is not set. The above-mentioned indicator pointer indicates the current time again. Therefore, it is not necessary to make the alarm ring again after the alarm rings. In the case of a clock, the operation of prohibiting the alarm ringing is omitted, and when the alarm is set again, the operation of disabling the prohibition of the alarm ringing is omitted, thereby simplifying the operation.

In addition, since the operation is simple, the wear and tear of switching elements will be reduced, thereby improving the long-term reliability of the electronic watch.

Owing to indicate the time of the alarm under the setting state of the city bell, and indicate the present time under the non-setting state of the alarm, it is possible to know whether it is the setting state of the alarm without a special display device. In this way, the user can know whether it is necessary to perform the next operation without looking at the instruction.

In addition, since the sound of the alarm can be changed according to different modes, you can know the mode just by listening to the sound of the alarm. In this way, the user can know whether it is necessary to perform the next operation without looking at the instruction. In addition, the sound of the alarm can be changed according to the purpose of the alarm.

Depending on the setting of the alarm setting time, when the current time is consistent with the alarm setting time, the alarm setting state will be canceled and the correction of the alarm setting time will be interrupted. No special operation or confirmation of the indication status is required. to cancel the alarm setting state.

As described above, according to the present invention, the commerciality of an electronic watch with an alarm can be improved.

Claims (6)

1. An electronic watch with an alarm is characterized in that it has an indicator pointer driven by multiple stepping motors and an external operating device, an alarm ringing device and an alarm control device, and stores a device for starting the alarm ringing device. And the program storage device of the software of the alarm control device; one or more groups of indicating pointers indicate the current time in the non-setting state of the alarm, according to the instructions of the program storage device, during and after the alarm is set The above-mentioned indicating hand indicating the current time indicates the alarm setting time, and at the same time, after the alarm rings, the alarm is not set, and the above-mentioned indicating hand indicates the current time again. 2. The feature of the electronic watch with alarm according to claim 1 is: there is such a device, which relies on the setting of the alarm setting time by the alarm control device. When they match, make it the alarm non-setting state. 3. The electronic watch with alarm according to claim 1 is characterized in that: it has such a device, which relies on the alarm control device, and in the fast-forward setting of the alarm setting time, when the current time is the same as When the alarm setting time matches, the fast forward setting of the alarm setting time is suspended. 4. An electronic watch with an alarm is characterized in that it has an indicator pointer and an external operating device driven by a plurality of stepping motors, an alarm bell ringing device and an alarm control device, and is stored for starting the alarm control device and The program storage device of the software of the alarm control device; it also has a selection device, and the selection device can also keep the alarm setting time after the alarm rings by relying on the alarm control device. When consistent, the alarm has the function of ringing again. 5. The electronic watch with alarm according to claim 4 is characterized in that: after the alarm rings, the alarm setting time can also be kept, and when the next current time is consistent with the alarm setting time, the alarm rings again The alarm sound produced by the clock function is different from the alarm sound produced by the function where the alarm is turned off after the alarm has sounded. 6. An electronic watch with an alarm is characterized in that it has a digital display function, an external operating device, an alarm ringing device, an alarm control device, and a program storing software for starting the alarm ringing device and the alarm control device. Storage device, one or more groups of indication pointers indicate the current time when the alarm is not set, according to the instructions of the program storage device, the above-mentioned indication pointer indicates the current time during and after the alarm is set Alarm setting time, at the same time, become alarm non-setting state after the alarm rings, and the above-mentioned indicator pointer indicates the present time again.

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