CN113740916A - Proximity detection circuit, proximity detection method, proximity detection device, and electronic apparatus - Google Patents
Proximity detection circuit, proximity detection method, proximity detection device, and electronic apparatus Download PDFInfo
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Abstract
The application discloses a proximity detection circuit, a proximity detection method, a proximity detection device and electronic equipment, and belongs to the technical field of detection. The circuit comprises: a first switch; the first proximity sensor is connected with the first detection body through the first detection branch, and the second proximity sensor is connected with the second detection body through the second detection branch; and the control module is respectively connected with the first switch, the first detection branch, the second detection branch, the first proximity sensor and the second proximity sensor. In the embodiment of the application, a single proximity sensor can simultaneously utilize the first detection body and the second detection body to carry out detection so as to improve the detection precision and realize the full utilization of detection resources, and two proximity sensors can also respectively and independently utilize one of the first detection body and the second detection body to carry out detection so as to ensure the normal detection of two sides of a screen when the folding screen is unfolded.
Description
Technical Field
The application belongs to the technical field of detection, and particularly relates to a proximity detection circuit, a proximity detection method, a proximity detection device and electronic equipment.
Background
As electronic device designs iterate and change, foldable screens are increasingly being used in electronic device designs. Electronic equipment can adopt proximity sensor to realize being close to detecting usually, however, to the electronic equipment who has folding screen, the detection ring border when folding screen expandes and folding can change, and accurate the detecting can not be realized to single sensor, and a plurality of sensors independently detect and have the detection wasting of resources again.
Disclosure of Invention
The embodiment of the application aims to provide a proximity detection circuit, a proximity detection method, a proximity detection device and electronic equipment, and can solve the problems that in the prior art, a single sensor cannot realize accurate detection, and a plurality of sensors independently detect and waste detection resources.
In a first aspect, an embodiment of the present application provides a proximity detection circuit, which is applied to an electronic device, where the electronic device includes a first body and a second body that are relatively rotatable, the first body is provided with a first detection body and a first proximity sensor, the second body is provided with a second detection body and a second proximity sensor, and the circuit includes:
a first switch through which the first detection body and the second detection body are connected;
the first proximity sensor is connected with the first detection body through the first detection branch, and the second proximity sensor is connected with the second detection body through the second detection branch;
the control module is respectively connected with the first switch, the first detection branch, the second detection branch, the first proximity sensor and the second proximity sensor, and the controller controls the on-off of the first switch, the first detection branch and the second detection branch according to the folding angle formed by the first body and the second body.
Optionally, the control module includes:
an angle sensor for detecting a folding angle formed by the first body and the second body;
and a first input end of the comparator is connected with the angle sensor, and an output end of the comparator is connected with the first switch.
Optionally, the first detection branch includes a first detection switch, the second detection branch includes a second detection switch, and the control module is connected to the first detection switch and the second detection switch respectively.
Optionally, the first switch, the first detection switch and the second detection switch all use MOS transistors.
Optionally, the first detection branch further includes a first capacitor, a first inductor, and a first resistor, a first end of the first detection switch is connected to the first detection body, a second end of the first detection switch is connected to the first end of the first capacitor and the first end of the first inductor, a second end of the first capacitor is grounded, a second end of the first inductor is connected to the first end of the first resistor, and a second end of the first resistor is connected to the first proximity sensor;
the second detection branch circuit further comprises a second capacitor, a second inductor and a second resistor, a first end of the second detection switch is connected with the second detection body, a second end of the second detection switch is connected with a first end of the second capacitor and a first end of the second inductor, a second end of the second capacitor is grounded, a second end of the second inductor is connected with a first end of the second resistor, and a second end of the second resistor is connected with the second proximity sensor.
Optionally, the first detection body is a metal frame of the first body, and the second detection body is a metal frame of the second body.
In a second aspect, an embodiment of the present application provides an electronic apparatus, which includes a first body and a second body that are relatively rotatable, the first body is provided with a first detection body and a first proximity sensor, the second body is provided with a second detection body and a second proximity sensor, and the electronic apparatus further includes a proximity detection circuit according to the first aspect. .
In a third aspect, an embodiment of the present application provides a proximity detection method, which is applied to the electronic device according to the second aspect, and the method includes:
detecting the folding angle of the folding screen;
and under the condition that the folding angle is smaller than a preset angle threshold value, controlling the first switch to be communicated, controlling the first detection branch to be communicated in a first time period, and controlling the second detection branch to be communicated in a second time period, wherein when the first detection branch is communicated, the first proximity sensor detects through the first detection branch, the first detection body and the second detection body, and when the second detection branch is communicated, the second proximity sensor detects through the second detection branch, the first detection body and the second detection body.
Optionally, after detecting the folding angle of the folding screen, the method further includes:
and under the condition that the folding angle is larger than a preset angle threshold value, controlling the first switch to be switched off, and controlling the first detection branch and the second detection branch to be communicated, wherein the first proximity sensor detects through the first detection branch and the first detection body, and the second proximity sensor detects through the second detection branch and the second detection body.
In a fourth aspect, an embodiment of the present application provides a proximity detection apparatus, including:
the angle detection module is used for detecting the folding angle of the folding screen;
the first proximity detection module is used for controlling the first switch to be communicated under the condition that the folding angle is smaller than a preset angle threshold value, controlling the first detection branch to be communicated in a first time period and controlling the second detection branch to be communicated in a second time period, wherein when the first detection branch is communicated, the first proximity sensor detects through the first detection branch, the first detection body and the second detection body, and when the second detection branch is communicated, the second proximity sensor detects through the second detection branch, the first detection body and the second detection body.
Optionally, the apparatus further comprises:
the second proximity detection module is used for controlling the first switch to be switched off and controlling the first detection branch and the second detection branch to be communicated under the condition that the folding angle is larger than a preset angle threshold value, the first proximity sensor detects through the first detection branch and the first detection body, and the second proximity sensor detects through the second detection branch and the second detection body.
In a fifth aspect, the present application provides an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the third aspect.
In a sixth aspect, the present application provides a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to the third aspect.
In a seventh aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the third aspect.
In the embodiment of the application, the on-off of the first detection branch and the second detection branch and the parallel connection between the first detection body and the second detection body are controlled according to the folding angle between the first body and the second body, so that a single proximity sensor can simultaneously use the first detection body and the second detection body to perform detection so as to improve the detection precision, the full utilization of detection resources is realized, two proximity sensors can also respectively and independently use one of the first detection body and the second detection body to perform detection, and the normal detection of two sides of a screen when the folding screen is unfolded is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a proximity detection circuit according to an embodiment of the present disclosure;
fig. 2 is a second schematic structural diagram of a proximity detection circuit according to an embodiment of the present disclosure;
fig. 3 is a schematic view of a folding screen provided in an embodiment of the present application in an unfolded state;
FIG. 4 is a schematic view of a folding screen provided in an embodiment of the present application in a folded state;
fig. 5 is a schematic flowchart of a proximity detection method according to an embodiment of the present application;
FIG. 6 is a timing diagram of control provided by an embodiment of the present application;
fig. 7 is a schematic flow chart of another approach detection method provided in the embodiment of the present application;
fig. 8 is a schematic structural diagram of a proximity detection device according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
fig. 10 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The proximity detection circuit, the proximity detection method, the proximity detection apparatus, and the electronic device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 and fig. 2, fig. 1 is a first schematic structural diagram of a proximity detection circuit provided in an embodiment of the present application, and fig. 2 is a second schematic structural diagram of the proximity detection circuit provided in the embodiment of the present application. The embodiment of the first aspect of the present application provides a proximity detection circuit, which is applied to an electronic device, where the electronic device includes a first body and a second body that are relatively rotatable, the first body is provided with a first detection body 11 and a first proximity sensor 12, and the second body is provided with a second detection body 21 and a second proximity sensor 22; the proximity detection circuit includes a first switch 30, a first detection branch 13, a second detection branch 23, and a control module, wherein the first detection body 11 and the second detection body 21 are connected by the first switch 30, the first detection body 11 and the second detection body 21 are disconnected when the first switch 30 is disconnected, and the first detection body 11 and the second detection body 21 are electrically connected when the first switch 30 is connected; the first proximity sensor 12 is connected to the first detection body 11 via the first detection branch 13, so that the first proximity sensor 12 can perform proximity detection using the first detection body 11, and the second proximity sensor 22 is connected to the second detection body 21 via the second detection branch 23, so that the second proximity sensor 22 can perform proximity detection using the second detection body 21; the control module is respectively connected with the first switch 30, the first detection branch 13, the second detection branch 23, the first proximity sensor 12 and the second proximity sensor 22, the control module can control the on-off of the first switch 30, the first detection branch 13 and the second detection branch 23 according to the folding angle formed by the first body and the second body, the control module can also acquire data detected by the first proximity sensor 12 and the second proximity sensor 22, and therefore the acquired data are processed to achieve proximity judgment.
For example, in the embodiment of the present application, the control module obtains the folding angle formed by the first body and the second body, compares the folding angle with the preset angle threshold, and when the folding angle formed by the first body and the second body is greater than the preset angle threshold, that is, the control module controls the first switch 30 to be turned off, that is, the first detection body 11 and the second detection body 21 to be turned off, at this time, the first proximity sensor 12 is connected with only the first detection body 11 through the first detection branch 13 to perform the proximity detection alone, and the second proximity sensor 22 is connected with only the second detection body 21 through the second detection branch 23 to perform the proximity detection alone; and under the condition that the folding angle formed by the first body and the second body is smaller than the preset angle threshold, the control module controls the first switch 30 to be communicated, at this time, namely, the first detection body 11 and the second detection body 21 are connected in parallel, the first proximity sensor 12 can be simultaneously connected with the first detection body 11 and the second detection body 21 through the first detection branch 13, and the second proximity sensor 22 can also be simultaneously connected with the first detection body 11 and the second detection body 21 through the second detection branch 23, so that the first proximity sensor 12 and the second proximity sensor 22 can be connected with more detection bodies only through the original detection branches, and on the premise of not losing the detection performance of a single channel, the human body proximity detection performance is improved. In addition, the control module can also control the on-off of the first detection branch 13 and the second detection branch 23 according to the folding angle formed by the first body and the second body, so that the time-sharing work of the first proximity sensor 12 and the second proximity sensor 22 is realized, and the first proximity sensor 12 and the second proximity sensor 22 are not interfered with each other.
Therefore, in the embodiment of the application, the on-off of the first detection branch and the second detection branch and the parallel connection between the first detection body and the second detection body are controlled according to the folding angle between the first body and the second body, so that a single proximity sensor can simultaneously use the first detection body and the second detection body to detect so as to improve the detection precision, the full utilization of detection resources is realized, two proximity sensors can also respectively and independently use one of the first detection body and the second detection body to detect, and the normal detection of two sides of the screen when the folding screen is unfolded is ensured.
In some embodiments of the present application, the first proximity sensor 12 and the second proximity sensor 22 are SAR (Specific Absorption Rate) sensors, the SAR sensors are smart capacitive proximity sensors, and when a user uses an electronic device equipped with the SAR sensors, the proximity is reported when the human body approaches.
Taking a capacitive proximity sensor as an example, when a folding angle formed by a first body and a second body is smaller than a preset angle threshold, a control module controls a first switch 30 to be communicated, in this case, namely, the first detection body 11 and the second detection body 21 are connected in parallel, the first proximity sensor 12 can be simultaneously connected with the first detection body 11 and the second detection body 21 through a first detection branch 13, and the second proximity sensor 22 can also be simultaneously connected with the first detection body 11 and the second detection body 21 through a second detection branch 23, when any one of the first proximity sensor 12 and the second proximity sensor 22 performs detection, an oscillation circuit is formed between the first detection body 11 and the ground, when a human body or the like approaches the first detection body 11, capacitance of the circuit changes, thereby realizing proximity detection, and the second detection body 21 has the same effect, in this case, the first detector 11 and the second detector 21 are connected by the first switch 30 to form a parallel connection, so that the detection accuracy is improved by using the first detector and the second detector to perform detection at the same time without losing the single-channel detection performance, the detection resources are fully utilized, and the human body proximity detection performance is improved.
As shown in fig. 1 and 2, in some embodiments of the present application, optionally, the control module includes a controller 43, an angle sensor 42 and a comparator 41, where the angle sensor 42 is configured to detect a folding angle of the folding screen, the folding angle is an angle formed by the first body and the second body, the folding angle detected by the angle sensor 42 is transmitted to the controller 43 in real time, the angle sensor 42 is connected to a first input end of the comparator 41, a second input end of the comparator 41 may be configured as a preset angle threshold, and an output end of the comparator 41 is connected to the first switch 30, so that the comparator 41 outputs a control signal to control on/off of the first switch 30 by comparing the folding angle detected by the angle sensor 42 with the preset angle threshold.
In other embodiments of the present application, the first detection branch 13 includes a first detection switch 131, the second detection branch 23 includes a second detection switch 231, and the control module is connected to the first detection switch and the second detection switch, that is, the controller 43 is connected to the first detection switch 131 and the second detection switch 231, so as to control the on/off of the first detection branch 13 and the second detection branch 23 through the on/off of the first detection switch 131 and the second detection switch 231, and then control whether the first proximity sensor 12 and the second proximity sensor 22 can normally perform detection, thereby providing a circuit basis and a control logic for the time-sharing operation of the first proximity sensor 12 and the second proximity sensor 22, and ensuring that the two do not interfere with each other.
In some embodiments of the present application, the first switch 30, the first detection switch 131 and the second detection switch 231 may all adopt MOS transistors, and the MOS transistors, i.e. metal-oxide semiconductor field effect transistors (MOS-FETs), may work under the condition of very small current and very low voltage, and adopt a Pulse Width Modulation (PWM) mode to control the on and off thereof, so as to reduce power consumption and reduce occupied volume.
The connection relationship between the structures of the first detection branch 13 and the second detection branch 23 will be described below by taking MOS transistors as an example for both the first detection switch 131 and the second detection switch 231.
As shown in fig. 2, in some embodiments of the present invention, the first detection branch 13 further includes a first capacitor 132, a first inductor 133 and a first resistor 135, a first end of the first detection switch 131 is connected to the first detection body 11, a second end of the first detection switch 131 is connected to the first end of the first capacitor 132 and the first end of the first inductor 133, a third end of the first detection switch 131 is connected to the controller 50, a second end of the first capacitor 132 is grounded, a second end of the first inductor 133 is connected to the first end of the first resistor 135, and a second end of the first resistor 135 is connected to the first proximity sensor 12. The first inductor 133 serves as an isolation inductor of the detection path, and the first resistor 135 serves as a current limiting resistor of the detection path, so that when a human body approaches or moves away from the first detection object 11, the capacitance value of the first capacitor 132 changes, thereby realizing proximity detection. In an exemplary embodiment, the first terminal, the second terminal, and the third terminal of the first detection switch 131 are a source, a drain, and a gate of the MOS transistor, respectively.
As shown in fig. 2, in other embodiments of the present application, the second detection branch 23 further includes a second capacitor 232, a second inductor 233 and a second resistor 235, a first end of the second detection switch 231 is connected to the second detection body 21, a second end of the second detection switch 231 is connected to the first end of the second capacitor 232 and the first end of the second inductor 233, a third end of the second detection switch 231 is connected to the controller 50, a second end of the second capacitor 232 is grounded, a second end of the second inductor 233 is connected to the first end of the second resistor 235, and a second end of the second resistor 235 is connected to the second proximity sensor 22. The second inductor 233 is an isolation inductor of the detection path, and the second resistor 235 is a current limiting resistor of the detection path, so that when a human body approaches or moves away from the second detection body 21, the capacitance value of the second capacitor 232 changes, thereby realizing proximity detection. In an exemplary embodiment, the first terminal, the second terminal, and the third terminal of the second detection switch 231 are the source, the drain, and the gate of the MOS transistor, respectively.
Optionally, the first detecting branch 13 further includes a first analog signal line 134, and the second end of the first inductor 133 is connected to the first end of the first resistor 135 through the first analog signal line 134; the second detecting branch 23 further includes a second analog signal line 234, and the second end of the second inductor 233 and the first end of the second resistor 235 are connected via the second analog signal line 234.
In still other embodiments of the present application, the first body and the second body are metal frames of an electronic device, the first detection body 11 is formed by at least a part of the metal frame of the first body, and the second detection body 21 is formed by at least a part of the metal frame of the second body. For example, the first detection body 11 may be formed of a metal frame at a bent corner of the outer periphery of the first body, both ends of the metal frame at the bent corner being blocked from other partial frames, and similarly, the second detection body 21 may be formed of a metal frame at a bent corner of the outer periphery of the second body, both ends of the metal frame at the bent corner being blocked from other partial frames. Alternatively, the first detection body 11 and the second detection body 21 are located at the same corner of the electronic apparatus when the folding screen is in the folded state.
In the embodiment of the present application, a third resistor 31 may be further provided in the connection path between the first detector 11 and the second detector 21, that is, the first switch 30 and the third resistor 31 are sequentially connected between the first detector 11 and the second detector 21, and the third resistor 31 functions as a protection resistor. Specifically, taking the example where the first switch 30 is a MOS transistor, the gate of the first switch 30 is connected to the output terminal of the comparator 41, the source of the first switch 30 is connected to the sources of the first detector 11 and the first detection switch 131, the drain of the first switch 30 is connected to the first end of the third resistor 31, and the second end of the third resistor 31 is connected to the drains of the second detector 12 and the second detection switch 231, respectively.
Referring to fig. 3 and 4, fig. 3 is a schematic view illustrating a folded screen provided in an embodiment of the present application in an unfolded state, and fig. 4 is a schematic view illustrating the folded screen provided in the embodiment of the present application in a folded state. In this application embodiment, first body and second body are used for supporting electronic equipment's folding screen, and relative rotation between first body and the second body can drive electronic equipment's folding screen to expand or fold promptly. The angle sensor 42 detects a folding angle formed by the first body and the second body, and when the folding angle is greater than a preset angle threshold, as shown in fig. 3, the first switch 30 is controlled to be turned off, and the first detection branch 13 and the second detection branch 23 are controlled to be connected, the first proximity sensor 12 detects through the first detection branch 13 and the first detection body 11, the second proximity sensor 22 detects through the second detection branch 23 and the second detection body 21, and at this time, the proximity detection circuit can detect whether a human body approaches the electronic device through the first proximity sensor 12 and the second proximity sensor 22 at the same time; in the case where the folding angle is smaller than the preset angle threshold, as shown in fig. 4, the first switch 30 is controlled to be connected, and the first detection branch 13 and the second detection branch 23 are controlled to be connected in a time-sharing manner, wherein when the first detection branch 13 is connected, the first proximity sensor 12 detects the human body through the first detection branch 13, the first detection body 11, and the second detection body 21, and when the second detection branch 23 is connected, the second proximity sensor 22 detects the human body through the second detection branch 23, the first detection body 11, and the second detection body 21, and at this time, the proximity detection circuit can detect whether the human body is approaching the electronic device through the first proximity sensor 12 and the second proximity sensor 22 in a time-sharing manner, and since the first detection body 11 and the second detection body 21 are connected in parallel, the distance detection effect in a single direction can be doubled, and in a time-sharing manner, without losing the detection performance of a single channel, the dynamic controllability of the detection mechanism configuration of the proximity sensor is realized, so that the human body proximity detection performance is improved.
In the embodiment of the application, the on-off of the first detection branch and the second detection branch and the parallel connection between the first detection body and the second detection body are controlled according to the folding angle between the first body and the second body, so that a single proximity sensor can simultaneously use the first detection body and the second detection body to perform detection so as to improve the detection precision, the full utilization of detection resources is realized, two proximity sensors can also respectively and independently use one of the first detection body and the second detection body to perform detection, and the normal detection of two sides of a screen when the folding screen is unfolded is ensured.
An embodiment of the second aspect of the present application further provides an electronic device, where the electronic device includes a first body and a second body that are relatively rotatable, the first body is provided with a first detection body and a first proximity sensor, the second body is provided with a second detection body and a second proximity sensor, and the electronic device further includes a proximity detection circuit as in any of the above embodiments.
The electronic device in the embodiment of the present application has the structure of the proximity detection circuit in the above embodiment, and can achieve the same technical effect, and is not described herein again to avoid repetition.
Referring to fig. 5, fig. 5 is a schematic flow chart of a proximity detection method according to an embodiment of the present disclosure. As shown in fig. 5, an embodiment of the third aspect of the present application further provides a proximity detection method, where the proximity detection method is applied to the electronic device in the embodiment of the second aspect, and the method includes the following steps:
step 501: detecting the folding angle of the folding screen;
step 502: and under the condition that the folding angle is smaller than a preset angle threshold value, controlling the first switch to be communicated, controlling the first detection branch to be communicated in a first time period, and controlling the second detection branch to be communicated in a second time period, wherein when the first detection branch is communicated, the first proximity sensor detects through the first detection branch, the first detection body and the second detection body, and when the second detection branch is communicated, the second proximity sensor detects through the second detection branch, the first detection body and the second detection body.
In the embodiment of the application, the folding angle formed between the first body and the second body of the electronic device can be detected by the angle sensor, the detected folding angle is transmitted to the comparator and the controller in real time, the comparator outputs a comparison result according to the current folding angle and a preset angle threshold value, and therefore the control signal is output to control the on-off of the first switch.
Specifically, when the folding angle formed between the first body and the second body is smaller than a preset angle threshold, the first switch is controlled to be communicated, the first detection branch is controlled to be communicated in a first time period, the second detection branch is controlled to be communicated in a second time period, the first time period and the second time period are different and alternate with each other, wherein when the first detection branch is communicated, the first proximity sensor is simultaneously connected with the first detection body and the second detection body through the first detection branch, so that the first detection body and the second detection body are used for simultaneous detection, when the second detection branch is communicated, the second proximity sensor is simultaneously connected with the first detection body and the second detection body through the second detection branch, so that the first detection body and the second detection body are used for simultaneous detection, and at the moment, the proximity detection circuit can detect whether a human body is close to the electronic equipment through the first proximity sensor and the second proximity sensor in a time sharing manner, and because the first detection body and the second detection body are connected in parallel and in short circuit, the distance detection effect in a single direction can be multiplied, and the dynamic controllability of the configuration of a detection mechanism of the proximity sensor is realized through a time-sharing multiplexing mode on the premise of not losing the detection performance of a single channel, so that the human body proximity detection performance is improved.
In other embodiments of the present application, after detecting the folding angle of the folding screen, the method further comprises:
under the condition that the folding angle is larger than the preset angle threshold value, the first switch is controlled to be switched off, the first detection branch and the second detection branch are controlled to be communicated, the first proximity sensor detects through the first detection branch and the first detection body, and the second proximity sensor detects through the second detection branch and the second detection body.
That is to say, under the condition that the folding angle that becomes between first body and the second body is greater than preset angle threshold, control first switch disconnection, and control first detection branch road and second detection branch road and all communicate, then this moment, first proximity sensor only is connected with first detection body through first detection branch road, carry out proximity detection, second proximity sensor passes through second detection branch road and is connected with the second detection body, carry out proximity detection, proximity detection circuit can detect whether the human body is close to electronic equipment through first proximity sensor and second proximity sensor simultaneously this moment, with the normal detection of screen both sides when ensureing folding screen and expandeing.
Referring to fig. 6, fig. 6 is a control timing diagram according to an embodiment of the present disclosure. As shown in fig. 6, when the folding angle formed between the first body and the second body is greater than the preset angle threshold, that is, after the folding screen is unfolded, the comparator outputs a low level to control the first switch to be turned off, and at this time, the first detection body and the second detection body are turned off, the controller outputs a high level to the first detection switch and the second detection switch respectively according to a low level signal output by the comparator to control the first detection switch and the second detection switch to be turned on, and at this time, the first proximity sensor and the second proximity sensor operate independently at the same time to perform proximity detection; when the folding angle formed between the first body and the second body is smaller than a preset angle threshold value, the comparator outputs a high level to control the connection of the first switch and the connection between the first detection body and the second detection body when the folding screen is folded, the controller respectively controls the first detection switch and the second detection switch to be switched on in a time-sharing mode in a PWM mode according to the high level output by the comparator, specifically, the controller outputs a low level to the first detection switch in a first control period and outputs a high level to the second detection switch to control the first detection switch to be switched off and the second detection switch to be switched on, the first proximity sensor cannot detect the folding screen, and the second proximity sensor can detect the folding screen by using the first detection body and the second detection body; then, the controller outputs a high level to the first detection switch and a low level to the second detection switch in a second control period, and the first detection switch can be controlled to be connected, and the second detection switch is disconnected, at the moment, the second proximity sensor cannot detect, and the first proximity sensor can detect by using the first detection body and the second detection body; by doing so, the first proximity sensor and the second proximity sensor operate in a time-sharing manner, and the first detection body and the second detection body are multiplexed in a time-sharing manner by the first proximity sensor and the second proximity sensor.
Referring to fig. 7, fig. 7 is a schematic flowchart illustrating another approach detection method according to an embodiment of the present disclosure. As shown in fig. 7, the proximity detection method includes the steps of:
step 201: initializing and configuring a system;
step 202: detecting the folding angle of the folding screen, judging whether the folding angle meets a trigger threshold value theta, if so, performing a step 203, otherwise, jumping to a step 216;
step 203: controlling the first switch to be closed to enable the first detection body and the second detection body to be communicated;
step 204: a first detection switch of the first detection branch is closed, so that the first detection branch is communicated;
step 205: a second detection switch of the second detection branch is disconnected, so that the second detection branch is disconnected;
step 206: the first detection branch completes one-time calibration, and the calibration can reduce errors introduced by a detection channel;
step 207: the first proximity sensor completes a sampling period of 1 external volume value change, namely the first proximity sensor completes one proximity detection through the first detection branch, the first detection body and the second detection body;
step 208: the controller acquires sampling data of the first proximity sensor;
step 209: exiting the first proximity sensor sample data sampling mode;
step 210: a first detection switch in the first detection branch is disconnected, so that the first detection branch is disconnected;
step 211: a second detection switch in the second detection branch is closed, so that the second detection branch is communicated;
step 212: the second detection branch completes one-time calibration, and the calibration can reduce errors introduced by the detection channel;
step 213: the second proximity sensor completes the sampling period of 1 external volume value change, namely the second proximity sensor completes one proximity detection through the second detection branch, the first detection body and the second detection body;
step 214: the controller acquires sampling data of the second proximity sensor;
step 215: exiting the second proximity sensor sampling data sampling mode and jumping to step 221;
step 216: controlling the first switch to be turned off to disconnect the first detection body and the second detection body;
step 217: a first detection switch of the first detection branch is closed, so that the first detection branch is communicated;
step 218: a second detection switch in the second detection branch is closed, so that the second detection branch is communicated;
step 219: entering a synchronous sampling mode;
step 220: the first proximity sensor and the second proximity sensor finish data acquisition, namely the first proximity sensor finishes one-time proximity detection through the first detection branch and the first detection body, and the second proximity sensor finishes one-time proximity detection through the second detection branch and the second detection body;
step 221: is the job turned off? If yes, the process is ended, otherwise, the process jumps back to step 202.
The folding angle of the folding screen corresponds to the folding angle formed between the first body and the second body.
In the embodiment of the application, the on-off of the first detection branch and the second detection branch and the parallel connection between the first detection body and the second detection body are controlled according to the folding angle of the folding screen, so that a single proximity sensor can simultaneously use the first detection body and the second detection body to perform detection so as to improve the detection precision, the full utilization of detection resources is realized, two proximity sensors can also respectively and independently use one of the first detection body and the second detection body to perform detection, and the normal detection of two sides of the screen when the folding screen is unfolded is ensured.
It should be noted that, in the proximity detection method provided in the embodiment of the present application, the execution main body may be a proximity detection device, or a control module in the proximity detection device for executing the proximity detection method. In the embodiment of the present application, a proximity detection apparatus executes a proximity detection method as an example, and the proximity detection apparatus provided in the embodiment of the present application is described.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a proximity detection device according to an embodiment of the present disclosure. As shown in fig. 8, a proximity detection apparatus according to a fourth embodiment of the present application is further provided, where the apparatus 800 includes:
an angle detection module 801, configured to detect a folding angle of the folding screen;
the first proximity detection module 802 is configured to control the first switch to be connected when the folding angle is smaller than a preset angle threshold, control the first detection branch to be connected in a first time period, and control the second detection branch to be connected in a second time period, where when the first detection branch is connected, the first proximity sensor detects through the first detection branch, the first detection body, and the second detection body, and when the second detection branch is connected, the second proximity sensor detects through the second detection branch, the first detection body, and the second detection body.
Optionally, the apparatus further comprises:
the second proximity detection module is used for controlling the first switch to be switched off under the condition that the folding angle is larger than a preset angle threshold value, controlling the first detection branch and the second detection branch to be communicated, detecting the first proximity sensor through the first detection branch and the first detection body, and detecting the second proximity sensor through the second detection branch and the second detection body.
In the embodiment of the application, the on-off of the first detection branch and the second detection branch and the parallel connection between the first detection body and the second detection body are controlled according to the folding angle of the folding screen, so that a single proximity sensor can simultaneously use the first detection body and the second detection body to perform detection so as to improve the detection precision, the full utilization of detection resources is realized, two proximity sensors can also respectively and independently use one of the first detection body and the second detection body to perform detection, and the normal detection of two sides of the screen when the folding screen is unfolded is ensured.
The proximity detection device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a Personal Computer (PC), a Television (TV), a teller machine, a self-service machine, and the like, and the embodiments of the present application are not particularly limited.
The proximity detection device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system (Android), an iOS operating system, or other possible operating systems, which is not specifically limited in the embodiments of the present application.
The proximity detection device provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 5 to 7, and is not described here again to avoid repetition.
Optionally, as shown in fig. 9, an electronic device 900 is further provided in this embodiment of the present application, and includes a processor 901, a memory 902, and a program or an instruction stored in the memory 902 and executable on the processor 901, where the program or the instruction is executed by the processor 901 to implement each process of the proximity detection method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic device and the non-mobile electronic device described above.
Fig. 10 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.
The electronic device 1000 includes, but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.
Those skilled in the art will appreciate that the electronic device 1000 may further comprise a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 1010 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The electronic device structure shown in fig. 10 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is not repeated here.
The sensor 1005 is used for detecting the folding angle of the folding screen;
and a processor 1010 configured to control the first switch to be connected to each other when the folding angle is smaller than a preset angle threshold, control the first detection branch to be connected to each other in a first time period, and control the second detection branch to be connected to each other in a second time period, wherein when the first detection branch is connected to each other, the first proximity sensor detects the first detection object through the first detection branch, the first detection object, and the second detection object, and when the second detection branch is connected to each other, the second proximity sensor detects the second detection object through the second detection branch, the first detection object, and the second detection object.
In the embodiment of the application, the on-off of the first detection branch and the second detection branch and the parallel connection between the first detection body and the second detection body are controlled according to the folding angle of the folding screen, so that a single proximity sensor can simultaneously use the first detection body and the second detection body to perform detection so as to improve the detection precision, the full utilization of detection resources is realized, two proximity sensors can also respectively and independently use one of the first detection body and the second detection body to perform detection, and the normal detection of two sides of the screen when the folding screen is unfolded is ensured.
Optionally, the processor 1010 is further configured to control the first switch to be turned off and control the first detection branch and the second detection branch to be connected when the folding angle is greater than the preset angle threshold, where the first proximity sensor detects through the first detection branch and the first detection body, and the second proximity sensor detects through the second detection branch and the second detection body.
It should be understood that in the embodiment of the present application, the input Unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042, and the Graphics Processing Unit 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 may include two parts, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 1009 may be used to store software programs as well as various data, including but not limited to application programs and operating systems. Processor 1010 may integrate an application processor that handles primarily operating systems, user interfaces, applications, etc. and a modem processor that handles primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1010.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the proximity detection method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the proximity detection method embodiment, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A proximity detection circuit applied to an electronic apparatus including a first body and a second body which are relatively rotatable, the first body being provided with a first detection body and a first proximity sensor, the second body being provided with a second detection body and a second proximity sensor, the circuit comprising:
a first switch through which the first detection body and the second detection body are connected;
the first proximity sensor is connected with the first detection body through the first detection branch, and the second proximity sensor is connected with the second detection body through the second detection branch;
the control module is respectively connected with the first switch, the first detection branch, the second detection branch, the first proximity sensor and the second proximity sensor, and the controller controls the on-off of the first switch, the first detection branch and the second detection branch according to the folding angle formed by the first body and the second body.
2. The proximity detection circuit of claim 1, wherein the control module comprises:
an angle sensor for detecting a folding angle formed by the first body and the second body;
and a first input end of the comparator is connected with the angle sensor, and an output end of the comparator is connected with the first switch.
3. The proximity detection circuit according to claim 1, wherein the first detection branch comprises a first detection switch, the second detection branch comprises a second detection switch, and the control module is connected to the first detection switch and the second detection switch respectively.
4. The proximity detection circuit according to claim 3, wherein the first switch, the first detection switch, and the second detection switch are MOS transistors.
5. The proximity detection circuit of claim 3,
the first detection branch circuit further comprises a first capacitor, a first inductor and a first resistor, wherein a first end of the first detection switch is connected with the first detection body, a second end of the first detection switch is connected with a first end of the first capacitor and a first end of the first inductor, a second end of the first capacitor is grounded, a second end of the first inductor is connected with a first end of the first resistor, and a second end of the first resistor is connected with the first proximity sensor;
the second detection branch circuit further comprises a second capacitor, a second inductor and a second resistor, a first end of the second detection switch is connected with the second detection body, a second end of the second detection switch is connected with a first end of the second capacitor and a first end of the second inductor, a second end of the second capacitor is grounded, a second end of the second inductor is connected with a first end of the second resistor, and a second end of the second resistor is connected with the second proximity sensor.
6. The proximity detection circuit according to claim 1, wherein the first detection body is a metal bezel of the first body, and the second detection body is a metal bezel of the second body.
7. An electronic apparatus comprising a first body and a second body which are relatively rotatable, the first body being provided with a first detection body and a first proximity sensor, the second body being provided with a second detection body and a second proximity sensor, the electronic apparatus further comprising the proximity detection circuit according to any one of claims 1 to 6.
8. A proximity detection method applied to the electronic device of claim 7, the method comprising:
detecting the folding angle of the folding screen;
and under the condition that the folding angle is smaller than a preset angle threshold value, controlling the first switch to be communicated, controlling the first detection branch to be communicated in a first time period, and controlling the second detection branch to be communicated in a second time period, wherein when the first detection branch is communicated, the first proximity sensor detects through the first detection branch, the first detection body and the second detection body, and when the second detection branch is communicated, the second proximity sensor detects through the second detection branch, the first detection body and the second detection body.
9. The method of claim 8, wherein after detecting the fold angle of the folded screen, the method further comprises:
and under the condition that the folding angle is larger than a preset angle threshold value, controlling the first switch to be switched off, and controlling the first detection branch and the second detection branch to be communicated, wherein the first proximity sensor detects through the first detection branch and the first detection body, and the second proximity sensor detects through the second detection branch and the second detection body.
10. A proximity detection apparatus, applied to an electronic device according to claim 7, the apparatus comprising:
the angle detection module is used for detecting the folding angle of the folding screen;
the first proximity detection module is used for controlling the first switch to be communicated under the condition that the folding angle is smaller than a preset angle threshold value, controlling the first detection branch to be communicated in a first time period, and controlling the second detection branch to be communicated in a second time period, wherein when the first detection branch is communicated, the first proximity sensor detects through the first detection branch, the first detection body and the second detection body, and when the second detection branch is communicated, the second proximity sensor detects through the second detection branch, the first detection body and the second detection body.
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