TW477919B - Timer capable of controlling power - Google Patents

Abstract

The conventional timer is mainly divided into mechanical and electronic timers, in which the function of timer is not beyond the scope of conducting switch control of power at the specific time in order to output full-load or load-less power for the load. The present invention combines microprocessor, special-purpose timer chip, electricity and electronics related technique to design a timer capable of controlling power. Therefore, the timer is made to be able to perform on/off timing control of the general electric products. In addition, the output power at a specific moment of the timer can be arbitrarily planned and is not limited to perform only the function of full load or load-less switch control. By combining the function of special-purpose timing chip, accuracy of setting time can be increased; additionally, the timer-related setting data is stored in the memory of the timing chip such that function setting of timing is not affected by power failure. Consequently, the function of conventional timer and its application range can be greatly increased.

Description

477919 V. Description of the invention (1) [Field of the invention] The present invention is mainly related to the design and operation method of the timer. Timing devices are commonly used in daily life, which can increase convenience in life. For example, the start of the electric pan in the early morning or the regular start of other home appliances. The present invention further comprehensively improves the traditional timer. In addition to the functions of a conventional timer, it also has functions of variable output power, real-time power control, and adjustable timing cycle to increase its use range. [Background of the Invention] The timers commonly used in the general market can be divided into mechanical timers and electronic timers according to the timing structure they adopt. Whether it is a mechanical timer ® or an electronic timer, its main function is to perform full load or unloaded on and off control for a controlled load at a set time. The operation of the mechanical timer is simple, but the accuracy of the timing is not accurate enough. The electronic timer can perform more precise timing control, and the timing period is longer. However, whether it is a mechanical timer or an electronic timer, its timing function can only control the load power at full load or no load, and its flexibility in use is more limited. For example, in a general smart home anti-theft system, when the owner is away from home for a long time, it can simulate the automatic start of home appliances at a specific time, such as the control of lights. However, if the light control is to change the brightness according to the darkness of the night, the conventional timer cannot achieve this function. Therefore, the development of a timer with a variable output power function to enhance the function of the traditional timer is the motivation source of the present invention. [Objective of the Invention] As mentioned above, the main object of the present invention is to provide an output power

Page 4 477919 V. Description of the invention (2) The variable timer controls the output power of the timer socket by controlling the phase angle change of the switch crystal. In order to give full play to the function of the microprocessor and through the planning of the control software program, another object of the present invention is to provide a timer with digital real-time load power adjustment, that is, the timer can be adjusted in real time through the operation of a simple button. Output power of the socket. In order to improve the function of the timer, another object of the present invention is to provide a timer whose timing period can be arbitrarily adjusted. In the embodiment of the present invention, the minimum cycle period is divided into minutes. [Inventive Features] In order to achieve the purpose and effect disclosed in the present invention, the present invention mainly combines the technologies of a microprocessor, a dedicated timing chip, and related circuits such as power electronics, so that the output power of the timer socket can be adjusted. The main technical feature is that a power switch crystal is connected in series with the socket of the timer. The crystal can change the output power of the socket by adjusting the conduction angle. The control of the conduction angle of the power crystal is based on the set value of the power sent by the microprocessor at a certain time point, and compared with the value of the timing circuit starting from the zero point of each power cycle. If the value is equal, a trigger signal is sent to change the power The conduction angle of the crystal is achieved, and the output power is controlled. At the same time, in order to avoid the power-off from affecting the system-related settings and ensuring the accuracy of the timer when it is used for a long time, another feature of this case is that the system time is generated by a dedicated timing chip, while using the memory reserved by the timing chip To save the time and the set value of power. Since the chronograph

Page 5 477919 V. Description of the invention (3) Lithium battery is included in the chip, even if the power is off, important system setting data can be kept, and the operation of the system is not affected by power interruption. The timing period of a general timer is usually in the unit of day or month. Short cycle periods cannot be set. In order to solve the problem of setting short cycle periods, another feature of the present invention is to use the time at the timing point to set the field ( (Day, hour, minute) to give a specific value to indicate the cycle period in days or hours or minutes. This can reduce the timing cycle to minutes. With this function, for example, ordinary electric fans can be used for natural wind operation. In order to allow your reviewers to better understand the technical characteristics, efficacy, and progress of this case, the following illustrations are provided with illustrations. [Preferred Embodiment] The basic functional block diagram of the present invention is shown in Fig. 1. 1 is a power supply circuit, which mainly uses a full-wave rectification to generate a DC power supply (5 volts) required for a controllable power timer. 2 is the zero point detection circuit. Since the power control is controlled by the conduction angle in each sine wave period, the zero point detection is mainly used to detect the time point when the power supply voltage passes through the zero value, which can be used for conduction. The reference point for angle timing. The steady-state oscillation circuit 3 provides a basic pulse wave for timing. When the zero point is detected, this basic pulse wave is fed into the counting circuit 6 for counting, and the count value represents the time elapsed since the voltage zero point. In the program flow of the microprocessor 5, when the time is up, the relative power setting value (0 ~ 2 5 5) at that time point will be sent through the output port. This setting value is compared through the hardware comparison circuit 8. , If they are equal, the trigger signal of the power crystal 10 will be sent to control the on-time of the crystal in each power cycle

Page 6 477919 V. Description of the invention (4) Length, to achieve the purpose of power control. LCD display interface 4 and input settings Interface 7 is part of the man-machine interface, and provides functions of key input and screen display. In order to simplify the operation of the buttons, there are four buttons for the controllable power timer. With the prompt of the LCD display, the timer can be operated easily (to be explained later with the software control process). The timing memory chip 9 is used as a time counter, and uses its internal memory to store the set important data and its internal lithium battery to prevent the setting data from being lost due to power failure. Figures 2 and 3 are detailed circuit diagrams. The dotted squares are numbered the same as in Figure 1. Please refer to Figure 2 and Figure 3. 2 is the zero detection circuit. When the positive edge of the power supply passes the zero point, a pulse signal is generated at its output 2A. This pulse signal simultaneously enables the oscillation circuit 3 to operate and clears the counting circuit 6. The zero point detection circuit can be designed to detect one or two zero points in one cycle. In this embodiment, zero points of positive edges are detected. For example, if a positive edge zero is detected and the load power level is 2 5 6 (octet resolution), then the frequency of the oscillating circuit is 60x 256x 1 = 15360 Hz. Each positive edge zero starts, and the eight-bit counter consisting of 7 4 1 9 3 starts counting. If the power level sent by the microprocessor at a certain timing is 1 2 8 (half load), the comparison circuit will be 1 2 8/1 5 3 6 0 = 1/1 2 0 seconds after each positive edge zero. The trigger is turned on, that is, it is turned on only half of the time in a power cycle (1/60 seconds). If the zero-point detection circuit detects zero points of positive and negative half cycles, the frequency of the non-steady-state oscillation circuit can be adjusted to achieve the same function. The control angle of the power crystal triggering angle of the present invention is partly achieved through a hardware circuit. The microprocessor 5 specializes in the processing of human-machine interface signals and the time setting, power setting and time comparison of each timing point. As shown in Figure 3, the microprocessor 5 uses a liquid crystal display.

Page 7 477919 V. Description of the invention (5)

The indicator 4 is used as the system time display and related setting prompts (please refer to the operating instructions on the next page), while the input setting interface 7 is composed of four simple keys. The microprocessor cooperates with the input interface and the display interface to easily perform related set value input to perform different functional operations. The operation flow will be described later in cooperation with the software flow. 9 is a dedicated timing chip. Although the microprocessor itself also provides the function of a timing counter, the software required for its timing operation is more complicated and the accuracy of timing is poor. The timing value is prone to errors due to interruption of power supply. Therefore, the present invention uses a dedicated timing chip as the system time for timing, and the microprocessor then transmits the relevant time data through the data line, address line and control line. And because the dedicated timing chip contains 1 2 8by t e s of memory and lithium battery, it can ensure that the time and related setting data stored on the timing chip will not affect the function of the timer due to data loss caused by power failure. [Software control process and operation instructions]

The software control flow of the main program designed by the present invention is shown in Figure 4. In addition to the initial settings, the design of the main program mainly includes four functions: system time setting, load timing and power setting, real-time load power control, and start and stop of the controllable power timing system. The main function of the interrupt program is to read the system time and display it at a predetermined period, and compare it at regular time points to determine whether to output the power control of each socket. The system time setting is the input setting value of the input interface through the microprocessor, and the precise initial time is written into the DS1 2 88 7 chip. When this writing operation is completed, the timing chip is completely responsible for the timing chip. And the slightest

Page 8 477919 V. Description of the invention (6) The processor will periodically read this time data at every predetermined time (interruption period) to know the correct system time. The load time power setting is mainly used to set the time and power of each group of output, that is, when to start the output of the power supply and how much power is output. The invention can control the timing of controllable power of two loads at the same time. After receiving the input timing point and power setting value, the microprocessor will transfer these setting values to the corresponding memory in the dedicated timing chip. When reading the system time, it is also compared with the set timing point. Once the set timing point is reached, the output power set value set at this timing point is sent to the output port. The comparison circuit compares the value of the output port with the value of the counting circuit at any time to generate the power crystal conduction The trigger signal completes the timing function of controllable power. The real-time load power setting is similar to the manual operation mode. The user can arbitrarily set the output power of each output switch. This function is an accessory function of the controllable power timer, similar to an electronic dimmer, the difference is that the conventional analog dimmer is changed to a digital type. The start and stop of the controllable power timing system is to determine whether the function of the system is started. After setting the required settings, the system must be set to the start-up state, at which time the system can enter the timing mode of controllable power. The following describes the detailed operation flow of the main program in cooperation with the operation mode. After the controllable power timer starts, it operates in standby mode. At this time, the user can plan the controllable power timer to do what he wants. Under the programming framework, there are mainly four functional options. And 477919 V. Description of Invention (7) The keys for operation are simplified to four U (Up), D (Down), E (Enter) and S (Shi ft) keys. After booting, the LCD first displays the current date and time of the system. The screen looks like this: 89-07-17 M0N PM 03:49:36

At this time, press the S key to enter the first function display Day & Time A > P0WER CONTROL B > L0AD TIME SET

Press the U key to move through the four function display items. When you move to the C and D display items, the second function display screen will appear. OSYSTEM TIME SET D > L0AD ON OFF The setting function of these four function options respectively represents function A. : Real-time load power control function B: Load timing start and power setting function C: System time change and setting function D: Load timing control start and stop Press U to move to the desired display item and press the D key to further Enter the setting of this option, press E to return to the current time display. Option A is the control of real-time load power: you can also change the power delivered to the load in real time through this option. After selecting option A, the display screen is as follows; A > 0UT_1 B > 0UT_2

Page 10 477919 V. Description of the invention (8) ^ At this time, press ϋ to select the first or second group of output, press D to confirm the option, and press E to return to the screen displaying the current time. For example, if OUT-1 is selected, the displayed text is as follows:-L = _% = 000 At this time, press the S key to switch between the two options on the left and right. If you select u / D on the left, you can switch and the load is 〇N / 〇FF. On the right, press U / D to increase or decrease the output power setting. If there is an external load (such as a light bulb) at this time, when the power setting value is increased or decreased, I7 will immediately see the output power change (brightness change). B, B is the load timing start and power setting. After selecting the B option, the displayed screen is 1.

A > 〇UT ~ 1 B > 0UT one 2 ^% ^ 1 key can be used to select the output of the first group or the second group. Press D to confirm the selection. For example, after selecting the first group of outputs, 1 88-12-17 ° / 〇 = 128 AM 11:12:13

Press S key to choose among various options, press U / X value, press E to return to the previous page. , J is the setting of the reduction system

The number in the upper left corner (b. 6) indicates that the groups are set in sequence when setting—day—hour—minute—second to work \ point group, press the δ key ring), the group of time point refers to when the same virginity When the rate does not set the value of the sequential power output, you can set multiple groups of 5 days at different start times, or the number of groups can be set according to the available memory to control the power of six groups. Set by this function

Page 11 477919 V. Description of the invention (9) Cycles with the monthly set value, for example, setting the setting time on the 17th, and the setting time on the 17th of each month The timer will operate. If cycle control with smaller time is required, in the present invention, if it is set to 0, the cycle is set at the daily setting value. For example, the setting value of hour, minute, and second is AM 1 1: 1 2: 1 3, then AM 1 1 ·· 1 2 ·· 1 3 will operate every day. If you set the hour to 0 0, it means to cycle with the hour set value. For example, if the setting value of minute is 1 2: 1 3, the system will operate at the 12: 1 3 every hour. Similarly, if the minute is set to 60, it means to cycle with the set value of the minute. For example, if the second is set to 13, the system will operate every 13 minutes. The design of a short-time loop function can improve the application level of the timer. For example, the system is set to be divided into cycles, and six timing points are set in one minute, and each timing point is given a different power setting value. At this time, an external load ordinary fan can output the function of natural wind. Option C is to adjust the system time. After entering option C, the display at this time will be as follows (Take 1988, February 17th, 11th, 12th, 13th, and 3 seconds as an example). 88-12-17 TUE AM 11:12:13 First, the cursor blinks in the year, which means the year can be adjusted by pressing the U and D keys. If it is adjusted properly, press S key to go to the month and wait for adjustment, and so on to adjust the current time properly. After the adjustment, press E to return to the current time display. Option D is the start and stop of the load timing function setting. The displayed screen is as follows.

Page 12 477919 V. Description of the Invention (ίο)

A > OUT_l L = OFF B > OUT_2 L = OFF At this time, press the S key to switch the control of the first group or the second group of output, and press u / D to switch the function of the group of outputs ON or OFF. Press E to return to the current moment screen.

After completing the operation of the desired function option, the system will return to the standby state, and the main program waits for any key input. The execution of the controllable power timer is the responsibility of the interrupt program. Figure 5 (A) shows the first interrupt subroutine. The trigger of this interrupt subroutine is relative to the interrupt request of the timing chip. Please refer to Figure 3. The timing chip informs the microprocessor to read the system time through the I RQ pin at a predetermined frequency. This can ensure that the system timing value is stable and prevent the microprocessor from reading the transient value of the timing chip. After entering the first interrupt subroutine, the microprocessor first reads each time field value from the memory on the timing chip and transfers it to the memory of the microprocessor on chip. Make necessary processing to the time field of on ch i p (A S C I I C 0 D E conversion), then display it on the LCD screen and return to the main program. Figure 5 (B) shows the second interrupt subroutine. This interrupt subroutine is to plan the timer / counter inside the microprocessor, and to make an interrupt request to the microprocessor at a predetermined frequency. This frequency is less than the execution frequency of the first interrupt program. Its main function is to perform time comparison and power output control at timing points. In the embodiment of this case, each output socket can be set with six sets of timing points at the same time. Each time column of these timing points is located in the memory of the timekeeping chip when the main program is executed. When the second interrupt subroutine is executed, the microprocessor first reads the data of the first group of timing points, and then compares it with the blocks of the current time. The first is to judge the cycle. example

Page 13 477919 V. Description of the invention (π) If the time field of the day is 0 0, it means that the day is a cyclic cycle. You only need to compare the hours, minutes, and seconds to determine whether the opening time has arrived. If the time is equal, read the time The power value of the point is output to the corresponding output 璋. Similarly, if the time field is 0 0, it means that the cycle is in hours. You only need to compare the minutes and seconds to determine whether the opening time has reached. If they are equal, read the power value at that time point and output it to the corresponding one. Output port. The operation principle of other cycles can be deduced by analogy. The timing points of each group are compared in sequence. Once there is an equal value, the power setting value of the group of timing points is output and returned to the main program. If there are still no equal numbers after comparing all the groups, it returns to the main program.

Fig. 6 is a trial product made according to the technical features of the present invention, and after many long-term tests by the inventor, it can indeed exert the effects disclosed in this case. The effect is obviously better than the traditional mechanical timer or electronic timer. Its main advantages can be summarized as follows: 1. Combined with the technology of microprocessor and power electronics and special timing chip, the output of the timer has adjustable output power. Function, the timing is accurate and not affected by power failure. Second, through the specific value of the set time point, such as the day time is set to 0 0, the minute is set to 60 to indicate the short time cycle (day, hour, minute) respectively, the timer cycle can be flexibly adjusted to improve the timer Application level.

3. It has the function of digital electronic dimmer, and the output power of the socket can be changed in real time through the operation of simple keys. In summary, the present invention has deep industrial applicability. The related products and approved patent announcements on the market have not been found to be similar to the present invention.

Page 14 477919 V. Description of the invention (12) The statutory patent application requirements for industrial use, novelty, and advancement requested by this case 'are to file a patent application according to law. We kindly urge your review committee to grant the patent in this case early to ensure the applicant's rights. However, what is disclosed above is only a preferred embodiment of the present invention, and the scope of rights of the present invention cannot be limited by this. Any equivalent changes or modifications made in accordance with the spirit of the present invention are still covered by the scope of patent application of the present invention.

P. 15 c C. Map map map map block flow path flow. Fang Dian electric current type map energy department type Chengguangong fine detail external breakage AMV Av AMVc4b F0 器 器 器 器 器 器 器 Temple rob the temple ηρ ΩΜ Π DM DM nQ Q Αν —ny ^^ / ^^^^ / 控 控 控 控 控 控 I 1 \ ·· I \ F • I〆 '·-1 \ ·· _! \ ·· 1 Cocoa Cocoa Cocoa Month Month Month Month Monthly printing, printing, printing, printing, printing, printing, printing, printing, printing, printing, copying ... Figure 477919 Brief description of component symbols] Power supply circuit 8 Comparison circuit Zero point detection circuit 9 Timing memory chip without steady state oscillation circuit 1 0 Power drive circuit LCD display interface 1 1 Load microprocessor 2 A Zero detection signal counting circuit 3A oscillator output signal input setting interface 8A power crystal trigger signal

Page 16

Claims (1)

477919 VI. Scope of patent application [Scope of patent application] 1. A controllable power timer mainly refers to a timer with timing and power control, including: a microprocessor, LCD display interface, key input interface, dedicated timing Chip, oscillator circuit, timing circuit, comparison circuit, power switch crystal, power switch crystal drive circuit, zero detection circuit, power supply circuit and output socket. The main technical feature is that a power switch crystal is connected in series with the output socket of the timer. The crystal can change the output power of the socket by adjusting the conduction angle. 2. The controllable power timer according to item 1 of the scope of patent application, the control of the conduction angle of the power crystal is based on the set value of the power sent by the microprocessor at a certain timing point, and the counting circuit from each power cycle The value of the zero-point count is compared. When the values are equal, the comparison circuit sends a conduction trigger signal to make the power crystal conduct, so as to change the conduction angle of the power crystal to achieve output power control. 3. The controllable power timer according to item 1 of the scope of patent application, wherein the oscillation frequency of the oscillation circuit is the product of the AC power frequency, the power setting level, and the number of detection zeros per power cycle. 4. According to the controllable power timer described in item 2 of the scope of patent application, the microprocessor reads the time value of the system from the timing chip at a predetermined period, and compares the system time with the timing time point stored in the timing chip. When the comparison is equal, the output port of the microprocessor sends the power setting value at the time point to the comparison circuit. 5. The controllable power timer as described in item 1 of the patent application scope, in which the microprocessor can input the timing point and power setting by inputting a button Page 17 477919 6. The value of the patent application, and the set value is transferred to the memory inside the timing chip. 6. The controllable power timer as described in item 5 of the scope of patent application, the timing point of each group of output sockets is six groups, and the power setting value is 0 to 2 5 5. 7. The controllable power timer as described in item 1 of the patent application scope, its further technical feature is that the output power of each group of output sockets can be real-time and controlled online, and the power set value can be increased or decreased immediately by pressing a button, which can be changed immediately. Output power of the output socket. 8. The controllable power timer as described in item 1 of the scope of the patent application, the default time cycle of which is a month. Yet another technical feature is that the cycle period is adjustable and the minimum cycle period is minutes. The setting of its cycle period is adjusted through the specific value of the time slot. Setting the date booth to 0 0 indicates that the day is a cyclic cycle. The hour column is set to 0 0 to indicate the hour as a cycle cycle. The minute stop is set to 60 to indicate a cycle cycle. Page 18