CN107741865B - Standby system capable of self-awakening and standby method - Google Patents

Abstract

The invention provides a standby system and a standby method capable of self-awakening, which can automatically wake up the system regularly. The system includes: a first power supply module, a real-time clock module, a voltage regulator, a second power supply module, a main control module, a switch circuit, and other preset circuit elements; wherein, the first power supply module supplies power for the real-time clock module, and the first power supply module supplies power to the real-time clock module; The second power supply module supplies power to the voltage stabilizer, the main control module, the switching circuit, and other preset circuit components; the real-time clock module is used to make the voltage stabilizer enter the working state when the alarm signal is generated, so that the voltage stabilizer can output The working voltage required by the main control module activates the main control module; after the main control module is activated, the switch circuits used to control other preset circuit elements are turned on, and the system enters the working state, which is also used to wait for the end of the system work. , controlling the real-time clock module to clear the alarm signal of the alarm clock, so that the system enters a standby state. The present invention relates to the technical field of electronic products.

Description

A standby system and standby method capable of self-awakening

technical field

The invention relates to the technical field of electronic products, in particular to a standby system and a standby method capable of self-awakening.

Background technique

In some special industrial control, test and measurement fields, there are extremely strict requirements on the power consumption of the equipment. For example, some field instruments and equipment need to be placed in the field or buried deep underground for work, which is inaccessible or even inaccessible for users, and is powered by batteries, which has a certain volume limit, and it is necessary to ensure that the equipment can be used continuously for at least one year. This poses a great challenge to the power consumption control of the circuit, requiring the device to be in an ultra-low-power standby state most of the time, and to wake up on its own when needed to achieve preset functions.

The current mainstream low-power standby solution is to put the microprocessor in a deep sleep state, generally through the low-power real-time clock (Real-Time Clock, RTC) circuit built into the microcontroller to work for timing, and through the timing Wake up to complete the corresponding function, and then enter the sleep work. However, in this way, although the microprocessor is already in the low-power standby mode, the power supply circuit of the system is still in the open state, the power supply chip itself will have static power consumption, and other peripheral components will inevitably generate current consumption. , and therefore cannot be applied to the above occasions with strict requirements on power consumption.

In the patent with the application number of 201310349034.7, a low-power consumption standby circuit and control method of a single-chip microcomputer are proposed. When the system is in standby, the power supply of the single-chip microcomputer is completely cut off to achieve low power consumption. At the same time, a corresponding trigger switch is designed, which can The single-chip microcomputer can be easily switched to the normal working mode, which is convenient to use. For those electrical appliances that have used the single-chip microcomputer that does not have a low-power consumption mode or similar functions, it is not necessary to redesign the circuit, and it is easy to implement. However, this solution cannot automatically wake up when the circuit is in a standby state, and the outside world must manually press the standby button to wake up the system, which does not meet the requirements of the above occasions.

In the patent with the application number of 201210214428.7, before the system enters the standby state, the currently running system state information is saved to an appropriate medium, and the index of the current system state information is stored in the RTC power domain while saving the system state information; When receiving the standby command of the system, turn off the power of the system, and when restarting, quickly find and restore the system state information before standby from the index information saved before. This solution also does not provide a method for automatic wake-up of the system, so it is still not suitable for the above-mentioned occasions.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a standby system and a standby method capable of self-awakening, so as to solve the problem existing in the prior art that the system cannot be automatically awakened.

In order to solve the above technical problem, the embodiment of the present invention provides a standby system capable of self-awakening, including: a first power supply module, a real-time clock module, a voltage regulator, a second power supply module, a main control module, a switch circuit, and a preset power supply module. Other circuit elements; wherein, the first power supply module supplies power for the real-time clock module, and the second power supply module is connected to the voltage stabilizer and the switch circuit, and is used for the voltage stabilizer, the main control module, Power supply for switching circuits and other pre-set circuit components;

The real-time clock module is used to generate an alarm clock alarm signal according to a preset time interval, and when it generates an alarm clock alarm signal, the voltage stabilizer is put into a working state, so that the voltage stabilizer can connect the second power supply module. The output voltage is converted into the working voltage required by the main control module to start the main control module;

The main control module, after being started, is used to control the switching circuits of other preset circuit elements to be turned on, and the system enters the working state; it is also used to control the real-time clock module to clear the alarm signal after the system is finished, so as to stabilize the system. The voltage regulator stops working, and the system enters the standby state, waiting for the next wake-up.

Further, the real-time clock module is specifically configured to generate an alarm clock alarm signal according to a preset time interval, when the real-time clock module generates an alarm clock alarm signal, the alarm clock alarm signal pin of the real-time clock module outputs a valid signal, The valid signal is used to start the voltage stabilizer, so that the voltage stabilizer enters the working state.

Further, the voltage stabilizer is provided with an enable terminal, and the enable terminal is connected to the alarm signal pin of the real-time clock module;

When the alarm signal pin of the real-time clock module outputs a valid signal, the voltage stabilizer enters a working state; otherwise, the voltage stabilizer stops working.

Further, the generating of the alarm clock alarm signal according to the preset time interval includes:

Generate an alarm signal every second; or,

Generate an alarm signal every minute; or,

An alarm signal is generated every hour; or,

Generate an alarm signal once a day; or,

Generate an alarm alarm signal once a week; or,

Specifies to generate an alarm signal on a certain date; or,

Specifies to generate an alarm signal at a certain time, minute and second on a certain date.

Further, the switch circuit is used to turn on and off the power supply of other preset circuit elements in the system;

Further, the first power module is a button battery.

Further, the second power module is a lithium battery, a dry battery or a lead-acid battery.

The embodiment of the present invention also provides a standby method capable of self-awakening, including:

configuring a real-time clock module, so that the real-time clock module generates an alarm signal according to a preset time interval, and the real-time clock module is powered by the first power supply module;

When the real-time clock module generates an alarm signal, the voltage stabilizer enters a working state, so that the voltage stabilizer converts the voltage output by the second power supply module into a working voltage required by the main control module to start the voltage stabilizer main control module;

After the main control module is started, the switch circuits of other preset circuit elements are controlled to be turned on, and the system enters the working state;

After the system works, the main control module controls the real-time clock module to clear the alarm signal, so that the voltage regulator stops working, the system enters a standby state, and waits for the next wake-up;

Wherein, the second power supply module supplies power to the voltage stabilizer, the main control module, the switch circuit, and other preset circuit elements.

Further, the voltage stabilizer is provided with an enable terminal, and the enable terminal is connected to the alarm signal pin of the real-time clock module;

When the alarm signal pin of the real-time clock module outputs a valid signal, the voltage stabilizer enters a working state; otherwise, the voltage stabilizer stops working.

Further, the generating of the alarm clock alarm signal according to the preset time interval includes:

Generate an alarm signal every second; or,

Generate an alarm signal every minute; or,

An alarm signal is generated every hour; or,

Generate an alarm signal once a day; or,

Generate an alarm alarm signal once a week; or,

Specifies to generate an alarm signal on a certain date; or,

Specifies to generate an alarm signal at a certain time, minute and second on a certain date.

The beneficial effects of the above-mentioned technical solutions of the present invention are as follows:

In the above solution, the first power supply module supplies power to the real-time clock module, and the second power supply module supplies power to the voltage regulator, the main control module, the switch circuit, and other preset circuit elements, and the real-time clock module is used to supply power according to the preset power supply. The set time interval generates an alarm signal, and when it generates an alarm signal, the voltage stabilizer is put into a working state, so that the voltage stabilizer can convert the voltage output by the second power supply module into the required voltage of the main control module. The main control module starts the main control module with the working voltage of The real-time clock module clears the alarm signal and makes the voltage regulator stop working. At this time, the entire system except the real-time clock module is powered off, and the system enters a low-power standby state again, waiting for the next wake-up of the real-time clock module, so that the The system is in a low-power standby state most of the time, and can automatically wake up the system at regular intervals, so it is very suitable for working in the field where there is no one on duty, and it is powered by batteries and has strict power consumption requirements.

Description of drawings

FIG. 1 is a schematic structural diagram of a standby system capable of self-awakening provided by an embodiment of the present invention;

FIG. 2 is a schematic flowchart of a standby method capable of self-awakening provided by an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

The present invention provides a standby system and a standby method capable of self-awakening, aiming at the problem that the existing system cannot be automatically woken up.

Example 1

As shown in FIG. 1 , the standby system capable of self-awakening provided by the embodiment of the present invention includes: a first power supply module 11 , a real-time clock module 12 , a voltage regulator 13 , a second power supply module 14 , a main control module 15 , and a switch circuit 16. Other preset circuit elements 17; wherein, the first power supply module 11 supplies power to the real-time clock module 12, and the second power supply module 14 is connected to the voltage regulator 13 and the switch circuit 16 for use in supply power to the voltage stabilizer 13, the main control module 15, the switch circuit 16, and other preset circuit elements 17;

The real-time clock module 12 is used to generate an alarm clock alarm signal according to a preset time interval, and when it generates an alarm clock alarm signal, the voltage stabilizer 13 is brought into a working state, so that the voltage stabilizer 13 will The voltage output by the two power supply modules 14 is converted into the working voltage required by the main control module 15 to start the main control module 15;

After the main control module 15 is started, the switch circuit 16 used to control other preset circuit elements is turned on, and the system enters the working state; it is also used to control the real-time clock module 12 to clear the alarm signal after the system work is completed. , so that the voltage regulator 13 stops working, the system enters the standby state, and waits for the next wake-up.

The standby system capable of self-awakening according to the embodiment of the present invention supplies power to the real-time clock module through the first power supply module, and the second power supply module supplies power to the voltage regulator, the main control module, the switch circuit, and other preset circuit elements, and The real-time clock module is used to generate an alarm clock alarm signal according to a preset time interval, and when it generates an alarm clock alarm signal, the voltage stabilizer is put into a working state, so that the voltage stabilizer can connect the second power supply module. The output voltage is converted into the working voltage required by the main control module to start the main control module; after the main control module is started, the switch circuits used to control other preset circuit elements are turned on, and the system enters the working state; After the work of the system is completed, the real-time clock module is controlled to clear the alarm signal, so that the voltage regulator stops working. At this time, the entire system except the real-time clock module is powered off, and the system enters a low-power standby state again, waiting for real-time operation. The next wake-up of the clock module can make the system in a low-power standby state most of the time, and can realize the timing automatic wake-up of the system. Very demanding occasions.

As shown in FIG. 2 , the self-awakening standby system provided in this embodiment includes: a first power supply module, a real-time clock module (the real-time clock module may be a real-time clock circuit), a voltage regulator, and a second power supply module (the main power supply module), the main control module (the main control module may be a single-chip microcomputer), a switch circuit, and other preset circuit elements; wherein,

the first power supply module is connected to the real-time clock module, and is used to provide power for the real-time clock module, preferably, the first power supply module can be a button battery;

The real-time clock module is connected to the voltage regulator and the main control module, and is used for generating an alarm signal according to a preset time interval. When the real-time clock module generates an alarm signal, the real-time clock module The alarm signal pin of the alarm clock outputs a valid signal, and the valid signal is used to start the voltage stabilizer and make the voltage stabilizer enter the working state;

The voltage stabilizer is connected to the second power supply module and the main control module, and is used to convert the voltage output by the second power supply module into the working voltage required by the main control module, so as to start the main control module module; wherein, the voltage stabilizer has an enable terminal, and the enable terminal is connected with the alarm signal pin of the real-time clock module, when the alarm signal pin of the real-time clock module outputs a valid signal , the voltage stabilizer enters the working state, otherwise, the voltage stabilizer stops working;

The second power supply module is also connected with the switch circuit, and is used for the components in the system except the real-time clock module and the first power supply module (ie: voltage regulator, main control module, switch circuit, other preset circuit element) to provide power to make the system work normally to complete the required functions, preferably, the second power module can be a lithium battery, a dry battery or a lead-acid battery;

The switch circuit, connected to the other preset circuit elements, is used to turn on and off the power supply of the other preset circuit elements in the system, wherein the other preset circuit elements can be specific functions The module, in practical application, is determined by the actual application scenario;

The main control module, the core controller of the entire system, is used to execute all program logic, for example, it can be used to cooperate with the other preset circuit elements to realize the functions required by the system, and also to control the The real-time clock module clears the alarm signal and stops the voltage stabilizer.

In this embodiment, the real-time clock module: used to realize real-time clock timing, has an alarm clock alarm function, and can be set to generate an alarm clock alarm signal every second, every minute, hour, day, week or a specified date to make the voltage stabilizer work ; Specifically, an alarm signal can be generated every second; or,

Generate an alarm signal every minute; or,

An alarm signal is generated every hour; or,

Generate an alarm signal once a day; or,

Generate an alarm alarm signal once a week; or,

Specifies to generate an alarm signal on a certain date; or,

Specifies to generate an alarm signal at a certain time, minute and second on a certain date.

In this embodiment, before the system leaves the factory, the real-time clock module may be configured to generate an alarm signal at certain time intervals. The signal pin outputs an invalid signal, the voltage stabilizer does not work, the main control module does not work without power supply, the switch circuit is also in a closed state, and other pre-set circuit components do not work, and the system is actually in a complete power-off state. The main power module has no current output except its own loss. At this time, the only current consumption in the system is the real-time clock module, which is powered by a button battery and the current value is below 100uA; when the time is up, When the real-time clock module generates an alarm alarm signal, the corresponding alarm alarm signal pin outputs a valid signal, so that the voltage regulator enters the working state, and outputs the corresponding working voltage to the main control module to work. The switch circuits of the other circuit elements set are turned on, and the whole system enters the working state to realize the corresponding functions; after that, the main control module operates the real-time clock module to clear its alarm signal, so the voltage regulator stops working again, except for the real-time clock module. The entire system other than that is powered off, and the system enters a low-power standby state again, waiting for the next wake-up of the real-time clock module.

Therefore, the self-wake-up standby system provided in this embodiment is in a low-power standby state most of the time. At this time, the main power module is completely turned off, only the internal consumption of the main power module itself, and the current output is almost 0. The real-time clock module works under the power supply of the button battery. Only when the timing time arrives, the real-time clock module outputs a valid signal on its alarm signal pin, so that the voltage regulator starts to work, and the whole system is turned on to perform the corresponding function. After the execution is completed, the main control module clears the signal on the alarm signal pin of the real-time clock module, and the system enters the low-power standby state again, waiting for the next wake-up, realizing the timing automatic wake-up of the system.

Embodiment 2

The present invention also provides a specific implementation of a standby system capable of self-awakening. Since the standby system capable of self-awakening provided by the present invention corresponds to the specific implementation of the aforementioned standby method capable of self-awakening, the standby system capable of self-awakening The purpose of the present invention can be achieved by executing the process steps in the specific embodiment of the above method, so the explanations in the specific embodiment of the above-mentioned self-awakening standby method are also applicable to the specific implementation of the self-awakening standby system provided by the present invention. Embodiments, which will not be repeated in the following specific embodiments of the present invention.

As shown in FIG. 2 , an embodiment of the present invention further provides a standby method capable of self-awakening, including:

S101, configure a real-time clock module, so that the real-time clock module generates an alarm signal according to a preset time interval, and the real-time clock module is powered by a first power supply module;

S102, when the real-time clock module generates an alarm signal, the voltage stabilizer enters a working state, so that the voltage stabilizer converts the voltage output by the second power supply module into a working voltage required by the main control module to start the main control module;

S103, after the main control module is started, the switch circuits of other preset circuit elements are controlled to be turned on, and the system enters a working state;

S104, after the system work ends, the main control module controls the real-time clock module to clear the alarm signal of the alarm clock, so that the voltage regulator stops working, the system enters a standby state, and waits for the next wake-up;

Wherein, the second power supply module supplies power to the voltage stabilizer, the main control module, the switch circuit, and other preset circuit elements.

In the standby method capable of self-awakening according to the embodiment of the present invention, the first power supply module supplies power to the real-time clock module, and the second power supply module supplies power to the voltage regulator, the main control module, the switch circuit, and other preset circuit elements; configure A real-time clock module, which enables the real-time clock module to generate an alarm signal at preset time intervals; when the real-time clock module generates an alarm signal for an alarm, the voltage regulator is brought into a working state, so that the voltage regulator can be Convert the voltage output by the second power supply module into the working voltage required by the main control module to start the main control module; after the main control module is started, the switch circuits used to control other preset circuit elements are turned on, and the system enters Working state; it is also used to control the real-time clock module to clear the alarm signal after the system work is completed, so that the voltage regulator stops working. At this time, the entire system except the real-time clock module is powered off, and the system enters low power consumption again. Standby state, waiting for the next wake-up of the real-time clock module, so that the system can be in a low-power standby state most of the time, and the system can be automatically woken up at regular intervals. Power supply and occasions where power consumption requirements are very strict.

In the specific embodiment of the aforementioned standby method capable of self-awakening, further, the voltage regulator has an enable terminal, and the enable terminal is connected to the alarm signal pin of the real-time clock module;

When the alarm signal pin of the real-time clock module outputs a valid signal, the voltage stabilizer enters a working state; otherwise, the voltage stabilizer stops working.

In the specific embodiment of the aforementioned standby method capable of self-awakening, further, the generating an alarm signal according to a preset time interval includes:

Generate an alarm signal every second; or,

Generate an alarm signal every minute; or,

An alarm signal is generated every hour; or,

Generate an alarm signal once a day; or,

Generate an alarm alarm signal once a week; or,

Specifies to generate an alarm signal on a certain date; or,

Specifies to generate an alarm signal at a certain time, minute and second on a certain date.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (6)

1. A self-awakening standby system, comprising: the real-time clock circuit comprises a first power supply module, a real-time clock module, a voltage stabilizer, a second power supply module, a main control module, a switching circuit and other preset circuit elements; the first power supply module supplies power to the real-time clock module, and the second power supply module is connected with the voltage stabilizer and the switching circuit and used for supplying power to the voltage stabilizer, the main control module, the switching circuit and other preset circuit elements;

the real-time clock module is used for generating an alarm clock alarm signal according to a preset time interval, and when the alarm clock alarm signal is generated, the voltage stabilizer enters a working state, so that the voltage stabilizer converts the voltage output by the second power supply module into a working voltage required by the main control module to start the main control module;

the main control module is used for controlling the preset switching circuits of other circuit elements to be started after being started, and the system enters a working state; the system is also used for controlling the real-time clock module to clear alarm clock signals after the system finishes working, so that the voltage stabilizer stops working, the system enters a standby state, and the next awakening is waited;

the real-time clock module is specifically configured to generate an alarm clock alarm signal according to a preset time interval, and when the real-time clock module generates the alarm clock alarm signal, an alarm clock alarm signal pin of the real-time clock module outputs an effective signal, where the effective signal is used to start the voltage stabilizer, so that the voltage stabilizer enters a working state.

2. The self-awakenable standby system of claim 1, wherein the voltage regulator has an enable terminal connected to an alarm clock signal pin of the real-time clock module;

when the alarm clock signal pin of the real-time clock module outputs an effective signal, the voltage stabilizer enters a working state, otherwise, the voltage stabilizer stops working.

3. The self-awakenable standby system of claim 1, wherein the generating an alarm clock alert signal at the preset time interval comprises:

generating an alarm clock alarm signal once per second; or,

generating alarm clock alarm signals once per minute; or,

generating an alarm clock alarm signal every time; or,

generating an alarm clock alarm signal once a day; or,

generating an alarm clock alarm signal once every week; or,

appointing to generate an alarm clock alarm signal once on a certain date; or,

it is specified that an alarm clock alert signal is generated one time a minute and a second at a time on a certain date.

4. The self-awakenable standby system according to claim 1, wherein the switch circuit is used for switching on and off the power supply of the preset other circuit elements in the system.

5. The self-awakenable standby system of claim 1, wherein the first power module is a button cell.

6. The self-awakenable standby system of claim 1, wherein the second power module is a lithium battery, a dry battery or a lead-acid battery.

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