CN108566226B - State adjusting method of electronic equipment - Google Patents

State adjusting method of electronic equipment Download PDF

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Publication number
CN108566226B
CN108566226B CN201810680451.2A CN201810680451A CN108566226B CN 108566226 B CN108566226 B CN 108566226B CN 201810680451 A CN201810680451 A CN 201810680451A CN 108566226 B CN108566226 B CN 108566226B
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state
comparator
gpio
potentiometer
processor
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CN108566226A (en
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孙钦利
张冰
刘渊
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Datang Terminal Technology Co Ltd
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Datang Terminal Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/401—Circuits for selecting or indicating operating mode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

The invention provides a state adjusting device and method of electronic equipment, comprising the following steps: a potentiometer, a comparator array, and a processor, wherein the comparator array comprises: the comparators are connected with the potentiometer and the processor, and the processor is connected with the electronic equipment; when the potentiometer is regulated, the tap voltage of the potentiometer changes, when the voltage exceeds the reference voltage of one of the comparators, the output state of the comparator changes, the change signal wakes up the processor, and the processor judges the current state level by reading the output level state of each current comparator and utilizing the preset mapping relation between GPIO and the state level, and sends a state regulation instruction to the electronic equipment to control the electronic equipment to regulate the state signal of the electronic equipment according to the state level. The invention realizes state adjustment by using the potentiometer on the broadband interphone, has convenient operation and simple structure, and is convenient for popularization.

Description

State adjusting method of electronic equipment
Technical Field
The present invention relates to the field of electronic devices, and in particular, to a method for adjusting a state of an electronic device.
Background
Volume adjustment knobs are used in many electronic devices. Taking an interphone widely used in various industries as an example, the interphone uses a volume switch to adjust the volume of a speaker. Currently, the volume switch with more applications in the industry is actually a sliding rheostat. Typically, a sliding rheostat processor has one end applied with a voltage, the other end grounded, and a tap in the middle. The voltage dividing circuit is formed, the angles of the potentiometers are different, the voltage division is also different, and the voltage corresponds to the volume. Typically, the processor collects the voltage signal on the potentiometer via an analog to digital conversion circuit (ADC). And adjusting the output volume according to the corresponding relation between the voltage and the volume. Currently, users in the industry have become accustomed to adjusting volume using potentiometer knobs.
The broadband interphone is different from the narrowband interphone in that the interphone adopts a built-in application program to encode and pack the acquired voice data and send the voice data to a formulated user or user group through a public network. The user or group of users receiving the data decodes the data and sends it to the speaker. Broadband interphones are more similar to cell phones.
The broadband interphone is standby in the working process. If the middle tap of the potentiometer is directly connected to the pin of the ADC of the processor on the circuit, the system cannot be awakened when the knob is adjusted, the current volume level cannot be displayed, and the current volume level does not accord with the use habit of a user.
Disclosure of Invention
The object of the present invention is to solve at least one of the technical drawbacks.
To this end, the present invention aims to propose a method for regulating the state of an electronic device.
An embodiment of another aspect of the present invention provides a method for adjusting a state of an electronic device, including the steps of: step S1, a potentiometer is regulated, the tap voltage of the potentiometer changes, and when the voltage exceeds the reference voltage of one of the comparators, the output state of the comparator changes;
s2, the processor is awakened by the output state change signals of the comparators, the processor detects the reporting interruption of the GPIO corresponding to each comparator by reading the output level state of each comparator, and judges the current state level by utilizing the mapping relation between the preset GPIO and the state level, and sends a state adjustment instruction to the electronic equipment to control the electronic equipment to adjust the state signals of the electronic equipment according to the state level;
step S3, after the processor adjusts the corresponding state level, shielding the interrupt function of the GPIO at the same time, and enabling the interrupt functions of the previous-stage GPIO and the next-stage GPIO of the GPIO at the same time; the comparators are connected with the potentiometer and the processor, and the processor is connected with the electronic equipment;
the connection mode of the comparators comprises one of the following modes:
(1) The inverting terminal of each comparator is connected with different input voltages, the non-inverting terminal of each comparator is connected to a tap of the potentiometer, and the output terminal of each comparator is connected to a general purpose input/output interface GPIO of the processor;
(2) The non-inverting terminal of each comparator is connected to a reference voltage, the inverting terminal of each comparator is connected together and is connected with a tap of the potentiometer, and the output terminal of each comparator is connected to a general purpose input/output interface GPIO of the processor;
wherein the output states of the comparators of the mode (1) and the mode (2) are opposite,
when the potentiometer is regulated, the tap voltage of the potentiometer changes, when the voltage exceeds the reference voltage of one of the comparators, the output state of the comparator changes, the change signal wakes up the processor, the processor judges the current state level by reading the output level state of each current comparator and utilizing the mapping relation between the preset GPIO and the state level, and sends a state regulation instruction to the electronic equipment to control the electronic equipment to regulate the state signal of the electronic equipment according to the state level.
Further, in the step S3, after the interrupt function of the GPIO corresponding to the mask state level, if the level of the potentiometer tap is just at the comparison threshold of the comparator, even if there is a change in the potential generated by the power noise, and the output pin of the comparator repeatedly changes, the GPIO interrupt will not be triggered.
Further, the status signal of the electronic device includes: volume, brightness, temperature and humidity.
According to the state adjusting method of the electronic equipment, the state adjustment is realized by using the potentiometer on the broadband interphone, and the state knob is adjusted to automatically wake up the interphone in the standby state. After waking up the interphone, the information required by the user, such as the current state, can be displayed. The invention is convenient for the user to operate, can realize adjustment by rotating the knob of the potentiometer, has simple structure and is convenient for popularization. It will be apparent that the invention is equally applicable to non-dormant devices. Its application is not limited by whether the device is dormant.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a circuit diagram of a state adjusting device of an electronic apparatus according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for adjusting the state of an electronic device according to an embodiment of the invention;
FIG. 3 is a schematic diagram of turning up volume of an electronic device according to an embodiment of the invention;
fig. 4 is a flow chart of the volume adjustment of the 5-stage comparator of the electronic device according to the embodiment of the invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1, a state adjusting device of an electronic device according to an embodiment of the present invention includes: potentiometer RP1, a comparator array and a processor. Wherein the comparator array comprises: the comparators D1-DN are connected with the potentiometer RP1 and the processor U1, and the processor U1 is connected with the electronic equipment.
The potentiometer RP1 is used as a state adjusting knob and mainly plays a role of voltage division, the angles of the knob are different, the corresponding voltage division is also different, and the angles of the knob and the voltage division values are basically in a linear relation. The N comparators D1-DN output voltage comparison results according to the voltage magnitude relation between the non-inverting terminal and the inverting terminal.
In one embodiment of the present invention, the connection manner of the plurality of comparators includes one of the following manners:
(1) The inverting terminal of each comparator is connected with different input voltages, the non-inverting terminal of each comparator is connected to a tap of the potentiometer, and the output terminal of each comparator is connected to a general purpose input/output interface GPIO of the processor.
Specifically, a plurality of comparators are used to form an array, the voltage thresholds at the opposite ends of the comparators are different and are arranged in a certain order, the same-phase ends of the comparators are connected together and are connected to a tap of the potentiometer RP 1. A voltage is applied across the potentiometer RP 1. The output of each comparator needs to be connected to a wakeable general purpose input output interface (GPIO). The GPIO may be either processor U1 itself or may be extended using an external extension chip.
In one embodiment of the invention, the inverting terminal of each comparator is connected to different voltage dividing resistors respectively by arranging a plurality of voltage dividing resistors to be connected in series so as to connect different voltages.
Referring to fig. 1, n+1 resistors R0 to RN are provided, and the resistors are connected in series to perform voltage division. Preferably, the voltage dividing resistors may have the same resistance.
(2) The non-inverting terminal of each comparator is connected to the reference voltage, the inverting terminal of each comparator is connected together and is connected with the tap of the potentiometer, and the output terminal of each comparator is connected to the general purpose input/output interface GPIO of the processor.
The output states of the comparators of the mode (1) and the mode (2) are opposite.
The processor U1 monitors the output state of each comparator via GPIOs, and if it is desired to turn the knob on the processor to wake up in the sleep state, each GPIO needs to support interrupt wakeup. In addition, the processor may determine a status level based on the status of the comparator and adjust a status signal of the electronic device.
In one embodiment of the invention, the status signal of the electronic device comprises: volume, brightness, temperature and humidity. It should be noted that the above-mentioned states of the electronic device are merely examples, and are not intended to limit the present invention. The status signal in the present invention also includes the status of other electronic devices, which will not be described herein.
In one embodiment of the present invention, the state adjusting device of the electronic device of the embodiment of the present invention further includes: and the display unit is connected with the electronic equipment. The display device U3 is for displaying system information.
When the state signal is volume, the state adjusting device of the electronic equipment further comprises a loudspeaker, and the loudspeaker is connected with the electronic equipment. The loudspeaker is used for converting the electric signal into a sound signal for playing.
It should be noted that, the voltage applied by the potentiometer RP1 needs to be matched with the voltage comparison ranges of the plurality of comparators, for example, the voltage applied across the potentiometer RP1 is 1.8V, which means that the voltage variation range of the potentiometer RP1 is 0-1.8V, and accordingly, the comparator array needs to divide the voltage range of 0-1.8V into multiple dry sections. For example, using 7 comparators, the level of the potentiometer can be divided into 8. I.e. at most 8-level state adjustment can be supported. In addition, the output level of the comparator needs to be matched with the level of the GPIO, for example, the high level of the output of the comparator is 1.8V, and the low level is 0V, so that the GPIO also needs to support the level.
The working principle of the state adjusting device of the electronic equipment provided by the embodiment of the invention is as follows:
when the potentiometer is regulated, the tap voltage of the potentiometer changes, when the voltage exceeds the reference voltage of one of the comparators, the output state of the comparator changes, the change signal wakes up the processor (or wakes up the processor through the interrupt signal of the extended chip), the processor judges the current state level by reading the output level state of each current comparator and utilizing the mapping relation between the preset GPIO and the state level, sends a state regulation instruction to the electronic equipment, controls the electronic equipment to play a corresponding sound signal according to the state level, and can display the state level through the display device.
Fig. 3 is a schematic diagram of turning up volume of an electronic device according to an embodiment of the invention.
(S101) adjusting a volume knob in a direction in which the volume increases;
(S102) the tap voltage of the potentiometer RP1 increases accordingly;
(S103) the comparator is always monitoring the voltage of RP1, and the processor U1 is always monitoring the output signal of the comparator;
(S104) when the voltage reaches a certain degree, the output state of a certain comparator is changed, and an interrupt signal is given to the processor through the GPIO by the change signal;
(S105) the processor U1 inquires of the state of each comparator, adjusts the volume of the speaker U2 according to the correspondence between the state and the volume, and can display the volume information through the display device.
In one embodiment of the present invention, the method and steps for volume reduction are similar to the method and steps for volume increase, and are not described in detail herein.
The correspondence relation between the state and the volume of the comparator is described as follows: for example, using 5 comparators, the voltage of the potentiometer RP1 is divided into 6 levels, i.e., 6 levels of volume adjustment can be supported. The volume level and H in the GPIO state indicate that the GPIO state is high and L indicates that the GPIO state is low. The table is merely illustrative of one embodiment, and the number of volume levels supported by the table may be less than or equal to +1 of the number of comparators.
As shown in fig. 2, the method for adjusting the state of the electronic device according to the embodiment of the invention includes the following steps:
step S1, a potentiometer is regulated, the tap voltage of the potentiometer changes, and when the voltage exceeds the reference voltage of one of the comparators, the output state of the comparator changes accordingly.
Step S2, the processor is awakened by the output state change signals of the comparators, and the processor detects the reporting interruption of the GPIO corresponding to each comparator by reading the output level state of each comparator, judges the current state level by utilizing the mapping relation between the preset GPIO and the state level, sends a state adjustment instruction to the electronic equipment, and controls the electronic equipment to adjust the state signals of the electronic equipment according to the state level.
In one embodiment of the invention, the status signal of the electronic device comprises: volume, brightness, temperature and humidity. It should be noted that the above-mentioned states of the electronic device are merely examples, and are not intended to limit the present invention. The status signal in the present invention also includes the status of other electronic devices, which will not be described herein.
And S3, after the processor adjusts the corresponding state level, shielding the interrupt function of the GPIO of the bit and enabling the interrupt functions of the previous-stage GPIO and the next-stage GPIO of the bit. If the level of the potentiometer tap is just at the comparison threshold of the comparator, even if there is a tiny change in the potential generated by power supply noise, and the output pin of the comparator repeatedly changes, the GPIO interrupt will not be triggered, because the GPIO interrupt function is shielded. At this time, the state level is stable and does not jump repeatedly.
It should be noted that, when the initial value of the state level is the lowest level state 0, the interrupt of the gpio_1 needs to be set to the mask state until the state level is adjusted to the state level 1 when the gpio_2 is changed, and at the same time, the interrupt of the gpio_2 is set to the disable state. Interrupts of the previous stage GPIO (gpio_3) and the next stage GPIO (gpio_1) thereof need to be set to an enabled state.
Referring to fig. 4, a specific operational procedure is described below with reference to a specific flowchart, taking a 5-stage comparator circuit and volume adjustment as examples.
(S201) the initial state volume level is set to volume 0;
(S202) masking the gpio_1 interrupt, enabling the gpio_2 interrupt;
(S203) monitoring whether the GPIO_2 has interrupt report, if not, waiting in the step, if so, jumping to S204;
(S204) the volume level is set to volume 1;
(S205) enabling gpio_1 interrupts, masking gpio_2 interrupts, enabling gpio_3 interrupts;
(S206) monitoring whether the GPIO_3 has interrupt report, if not, jumping to S207, and if so, jumping to S208;
(S207) monitoring whether the GPIO_1 has interrupt report, if so, jumping to S201, if not, jumping to S206;
(S208) the volume level is set to volume 2;
(S209) enabling gpio_2 interrupts, masking gpio_3 interrupts, enabling gpio_4 interrupts;
(S210) monitoring whether the GPIO_4 has interrupt report, if not, jumping to S211, and if so, jumping to S212;
(S211) monitoring whether the GPIO_2 has interrupt report, if so, jumping to S204, and if not, jumping to S210;
(S212) the volume level is set to volume 3;
(S213) enable gpio_3 interrupt, mask gpio_4 interrupt, enable gpio_5 interrupt;
(S214) monitoring whether the GPIO_5 has interrupt report, if not, jumping to S215, and if so, jumping to S216;
(S215) monitoring whether the GPIO_3 has interrupt report, if so, jumping to S208, if not, jumping to S214;
(S216) setting the volume level to volume 4;
(S217) enabling gpio_4 interrupts, masking gpio_5 interrupts;
(S218) monitoring whether the GPIO_4 has interrupt report, if not, waiting in the step, if so, jumping to S212;
the method can achieve the effect of solving the volume jump.
According to the state adjusting method of the electronic equipment, the state adjustment is realized by using the potentiometer on the broadband interphone, and the state knob is adjusted to automatically wake up the interphone in the standby state. After waking up the interphone, the information required by the user, such as the current state, can be displayed. The invention is convenient for the user to operate, can realize adjustment by rotating the knob of the potentiometer, has simple structure and is convenient for popularization. It will be apparent that the invention is equally applicable to non-dormant devices. Its application is not limited by whether the device is dormant.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (3)

1. A method for adjusting the state of an electronic device, comprising the steps of:
step S1, a potentiometer is regulated, the tap voltage of the potentiometer changes, and when the voltage exceeds the reference voltage of one of the comparators, the output state of the comparator changes;
step S2, the output state change signal of the comparator wakes up the processor, and the processor detects the reporting interruption of the GPIO corresponding to the comparator by reading the output level state of each current comparator, judges the current state level by utilizing the mapping relation between the preset GPIO and the state level, sends a state adjustment instruction to the electronic equipment, and controls the electronic equipment to adjust the state signal of the electronic equipment according to the state level;
step S3, after the processor adjusts the corresponding state level, shielding the interrupt function of the GPIO at the same time, and enabling the interrupt functions of the previous-stage GPIO and the next-stage GPIO of the GPIO at the same time;
the comparators are connected with the potentiometer and the processor, and the processor is connected with the electronic equipment;
the connection mode of the comparators comprises one of the following modes:
(1) The inverting terminal of each comparator is connected with different input voltages, the non-inverting terminal of each comparator is connected to a tap of the potentiometer, and the output terminal of each comparator is connected to a general purpose input/output interface GPIO of the processor;
(2) The non-inverting terminal of each comparator is connected to a reference voltage, the inverting terminal of each comparator is connected together and is connected with a tap of the potentiometer, and the output terminal of each comparator is connected to a general purpose input/output interface GPIO of the processor;
the output states of the comparators of the mode (1) and the mode (2) are opposite.
2. The method of state adjustment of an electronic device according to claim 1, wherein in the step S3, after the interrupt function of the GPIO corresponding to the mask state level, if the level of the potentiometer tap is just at the comparison threshold of the comparator, even if there is a change in the potential due to power supply noise, and the output pin of the comparator repeatedly changes, the GPIO interrupt is not triggered.
3. The method for adjusting the state of an electronic device according to claim 1, wherein the state signal of the electronic device comprises: volume, brightness, temperature and humidity.
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