WO2020057288A1 - 角度确定电路、方法及折叠屏终端 - Google Patents

角度确定电路、方法及折叠屏终端 Download PDF

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Publication number
WO2020057288A1
WO2020057288A1 PCT/CN2019/099924 CN2019099924W WO2020057288A1 WO 2020057288 A1 WO2020057288 A1 WO 2020057288A1 CN 2019099924 W CN2019099924 W CN 2019099924W WO 2020057288 A1 WO2020057288 A1 WO 2020057288A1
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WO
WIPO (PCT)
Prior art keywords
screen
resistor
angle
value
resistance value
Prior art date
Application number
PCT/CN2019/099924
Other languages
English (en)
French (fr)
Inventor
罗春晖
刘全忠
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to JP2021515612A priority Critical patent/JP7066054B2/ja
Priority to KR1020217011336A priority patent/KR102473469B1/ko
Priority to EP19863091.5A priority patent/EP3855709A4/en
Publication of WO2020057288A1 publication Critical patent/WO2020057288A1/zh
Priority to US17/207,422 priority patent/US11706325B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1677—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for detecting open or closed state or particular intermediate positions assumed by movable parts of the enclosure, e.g. detection of display lid position with respect to main body in a laptop, detection of opening of the cover of battery compartment
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0241—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings using relative motion of the body parts to change the operational status of the telephone set, e.g. switching on/off, answering incoming call
    • H04M1/0243—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings using relative motion of the body parts to change the operational status of the telephone set, e.g. switching on/off, answering incoming call using the relative angle between housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/34—Microprocessors

Definitions

  • Embodiments of the present disclosure relate to the technical field of folding screens, and in particular, to an angle determining circuit, method, and folding screen terminal.
  • the folding screen terminal includes two screens connected by rotation, and the user can adjust the angle between the two screens according to the actual use needs (this angle can also be called the folding angle, and the folding angle can be from 0 degrees to 180 degrees) .
  • a common determination method is to add a gravity sensor to the two screens respectively, and calculate the folding angle according to the component data of the gravity sensor.
  • the gravity sensor contains a relatively complicated mechanical structure, which is susceptible to thermal stress. In this way, the component data of the gravity sensor is very easily affected by temperature factors, so the accuracy of the above determination method is low.
  • the embodiments of the present disclosure provide an angle determination circuit, a method, and a folding screen terminal, so as to solve the problem that the current method for determining the folding angle of a folding screen terminal has low accuracy.
  • an embodiment of the present disclosure provides an angle determination circuit applied to a folding screen terminal, the folding screen terminal including a first screen and a second screen connected by a rotating shaft, and a resistance ring is provided on the outer fixing sleeve of the rotating shaft.
  • the circuit includes:
  • a first resistor one end of which is electrically connected to an output terminal of the first power source
  • the sliding path of the first conductive element and the second conductive element on the resistance ring is located in the same annular region in the circumferential direction of the resistance ring;
  • a processor configured to obtain a voltage division value between the other end of the first resistor and the other end of the second conductive element, and according to a voltage value of the first power source and a resistance value of the first resistor And the obtained partial pressure value, determining an included angle between the first screen and the second screen.
  • an embodiment of the present disclosure provides a folding screen terminal including the above-mentioned angle determining circuit.
  • an embodiment of the present disclosure provides a method for determining an angle, which is applied to the foregoing angle determining circuit.
  • the method includes:
  • an embodiment of the present disclosure provides a folding screen terminal including a memory, a processor, and a computer program stored on the memory and executable on the processor, and the computer program is executed by the processor.
  • the steps of the angle determination method described above are implemented at times.
  • an angle determining circuit may be provided in the folding screen terminal.
  • the angle determining circuit may include a first power source, a first resistor, a first conductive element, a second conductive element, and a processor.
  • the folding screen terminal may be fixed outside the shaft. Set with resistance ring.
  • the processor may The resistance value of the resistor and the voltage division value of the voltage dividing circuit module determine the folding angle of the folding screen terminal.
  • the folding angle of the folding screen terminal is determined by the angle determination circuit
  • the overall structure of the angle determination circuit is very simple
  • the angle determination circuit does not include a complicated mechanical structure
  • each of the angle determination circuits The performance of the element is not easily affected by the temperature factor. Therefore, compared with the related art, when determining the folding angle, the embodiments of the present disclosure can effectively avoid the influence of the temperature factor on the determination result, thereby improving the determined folding angle. Accuracy.
  • FIG. 1 is one of the structural schematic diagrams of an angle determining circuit according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a folding screen terminal according to an embodiment of the present disclosure
  • FIG. 3 is a working flowchart of an angle determining circuit according to an embodiment of the present disclosure
  • FIG. 5 is a second schematic structural diagram of an angle determination circuit according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a slot-shaped optical coupler
  • FIG. 7 is a third schematic structural diagram of an angle determination circuit according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a hardware structure of a folding screen terminal according to an embodiment of the present disclosure.
  • the angle determining circuit is applied to a folding screen terminal.
  • the folding screen terminal includes a first screen 1 and a second screen 2 connected by a rotating shaft, and a resistance ring 3 is provided on the outer fixing sleeve of the rotating shaft.
  • connection section 101, the connection section 102, and the connection section 103 are fixedly disposed on the first screen 1
  • connection section 201 and the connection section 202 are fixedly disposed on the second screen 2.
  • the angle determining circuit includes a first power source 4, a first resistor 5, a first conductive element 6, a second conductive element 7, and a processor.
  • One end of the first resistor 5 is electrically connected to the output end of the first power source 4.
  • the first power source 4 may be a regulated power source.
  • the first conductive element 6 is fixedly disposed on the first screen 1, one end of the first conductive element 6 is electrically connected to the other end of the first resistor 5, and the other end of the first conductive element 6 slides against the resistance ring 3.
  • the first conductive element 6 may be made of a metal material, and the first conductive element 6 may be parallel to the display surface 9 of the first screen 1.
  • the other end of the first conductive element 6 may be provided with a first contact elastic piece, the first contact elastic piece may slide against the resistance ring 3, and a contact manner between the first contact elastic piece and the resistance ring 3 may be point contact.
  • the second conductive element 7 is fixedly disposed on the second screen 2. One end of the second conductive element 7 slides against the resistance ring 3, and the other end of the second conductive element 7 is grounded. Among them, the first conductive element 6 and the second conductive element 7 The sliding path on the resistance ring 3 is located in the same annular area in the circumferential direction of the resistance ring 3.
  • the second conductive element 7 may also be made of a metal material.
  • the metal materials used for the second conductive element 7 and the first conductive element 6 may be the same or different; the second conductive element 7 may be parallel to the second Display surface 10 of screen 2.
  • one end of the second conductive element 7 may be provided with a second contact elastic piece, the second contact elastic piece may slide against the resistance ring 3, and a contact manner between the second contact elastic piece and the resistance ring 3 may also be a point contact.
  • both the first contact elastic sheet and the second contact elastic sheet slide against the resistance ring 3.
  • the first contact elastic sheet and the second contact elastic sheet are in contact with each other.
  • the position of the contacts on the resistance ring 3 will change relatively.
  • the resistance value of the voltage dividing circuit module composed of the first conductive element 6, the resistance coil 3 and the second conductive element 7 will change, and the voltage dividing value of the voltage dividing circuit module in the angle determining circuit will also change. Corresponding changes will occur. It can be seen that there is a certain relationship between the resistance value of the voltage dividing circuit module and the angle between the first screen 1 and the second screen 2. In other words, the resistance value of the voltage dividing circuit module is related to the folding angle of the folding screen terminal. Link.
  • the processor is configured to obtain a divided voltage value between the other end of the first resistor 5 and the other end of the second conductive element 7, and according to the voltage value of the first power source 4, the resistance value of the first resistor 5, and the obtained divided voltage Value, calculate the included angle between the first screen 1 and the second screen 2 (also known as the folding angle).
  • the processor may be a central processing unit (Central Processing Unit).
  • Central Processing Unit Central Processing Unit
  • the voltage division value between the other end of the first resistor 5 and the other end of the second conductive element 7 can be considered as the voltage division value of the voltage division circuit module in the angle determination circuit, and the processor obtains the voltage division
  • the specific implementation forms of the values are various, and examples are described below.
  • the angle determination circuit further includes: an analog-to-digital converter (ADC); wherein the processor is electrically connected to the common end of the first resistor 5 and the first conductive element 6 through the ADC.
  • ADC analog-to-digital converter
  • the processor is specifically used to obtain the divided voltage value obtained by the ADC sampling.
  • the other end of the first resistor 5 can be electrically connected to one end of the first conductive element 6 through a connection line 11, and the processor can be electrically connected to the connection line 11 through an ADC to realize the processor and the first resistance 5 Electrical connection with the common terminal of the first conductive element 6.
  • the ADC can be used to obtain Vo, and Vo is the voltage division value of the voltage division circuit module.
  • the folding angle of the folding screen terminal changes.
  • the resistance value of the voltage dividing circuit module changes, and the voltage dividing value of the voltage dividing circuit module changes accordingly.
  • the ADC can sample the voltage division value of the voltage division circuit module, and report the sampled voltage division value to the processor.
  • the processor can determine the folding angle of the folding screen terminal according to the divided voltage value reported by the ADC.
  • the processor can obtain the voltage division value of the voltage division circuit module very conveniently through the ADC.
  • the ADC can convert an analog signal into a digital signal. Therefore, the voltage value finally obtained by the processor is a digital signal, and the processor can identify and process the digital signal to determine the folding angle based on the digital signal.
  • the manner in which the processor obtains the voltage division value of the voltage division circuit module is not limited to this, and may be specifically determined according to actual conditions, which is not limited in the embodiments of the present disclosure.
  • an angle determining circuit may be provided in the folding screen terminal.
  • the angle determining circuit may include a first power source 4, a first resistor 5, a first conductive element 6, a second conductive element 7, and a processor.
  • a resistance ring 3 can be fixedly sleeved outside the rotating shaft.
  • the processor may The resistance value of a resistor 5 and the voltage division value of the voltage dividing circuit module determine the folding angle of the folding screen terminal.
  • the folding angle of the folding screen terminal is determined by the angle determination circuit
  • the overall structure of the angle determination circuit is very simple
  • the angle determination circuit does not include a complicated mechanical structure
  • each of the angle determination circuits The performance of the element is not easily affected by the temperature factor. Therefore, compared with the related art, when determining the folding angle, the embodiments of the present disclosure can effectively avoid the influence of the temperature factor on the determination result, thereby improving the determined folding angle. Accuracy.
  • the abutment positions of the first conductive element 6 and the second conductive element 7 on the resistance ring 3 divide the annular region into a first arc-shaped segment 12 and a second arc-shaped segment 13.
  • An arc-shaped segment 12 is far from the display surface 9 of the first screen 1 with respect to the second arc-shaped segment 13. It can be understood that the first curved segment 12 is also far from the display surface 10 of the second screen 2 relative to the second curved segment 13.
  • the processor is specifically used for:
  • the included angle between the first screen 1 and the second screen 2 is calculated according to the preset resistance value of the ring region and the first parallel resistance value.
  • the angle determination circuit in FIG. 1 can be equivalent to the circuit shown in FIG. 4.
  • the resistor at the lower end can be regarded as a variable resistor, which is equivalent to the voltage dividing circuit module composed of the first conductive element 6, the resistance coil 3, and the second conductive element 7 in FIG. 1; the resistor at the upper end can be It is considered to be a fixed resistance, which is equivalent to the first resistance 5 in FIG. 1; VDD is equivalent to the voltage value of the first power supply 4 in FIG. 1; Vo is the voltage division value obtained by the ADC sampling (that is, the voltage division value of the voltage division circuit module) ). Assuming that the resistance value of the first resistor 5 is R1 and the resistance value of the voltage-dividing circuit module is R2, then R1, R2, VDD, and Vo satisfy the following formula (1).
  • Vo VDD ⁇ R2 / (R1 + R2) (1)
  • the resistance values of the first conductive element 6 and the second conductive element 7 are very small and can be ignored compared with the resistance values of the resistance-type elements (for example, the resistance coil 3 and the first resistance 5).
  • the resistance value of the voltage dividing circuit module may specifically be the parallel resistance value of the first arc segment 12 and the second arc segment 13. Assuming that the resistance value of the first arc-shaped segment 12 is r1 and the resistance value of the second arc-shaped segment 13 is r2, then three of r1, r2, and R2 satisfy the following formula (2).
  • R2 r1 ⁇ r2 / (r1 + r2) (1) r2 (r1 + r2) (2)
  • the included angle (that is, the folding angle) of the first screen 1 and the second screen 2 is ⁇ .
  • r1, r2, and ⁇ satisfy a certain geometric relationship.
  • the geometric relationship is specifically shown in the following formula (3) .
  • the sum of r1 and r2 (that is, r1 + r2) is the preset resistance value in the ring region.
  • the preset resistance value can be considered as a certain value, and the processor can store the preset resistance value in advance. .
  • the processor may further store a voltage value VDD of the first power source 4 and a resistance value R1 of the first resistor 5 in advance.
  • the processor may obtain the divided voltage value Vo of the voltage dividing circuit module obtained by the ADC sampling, and substitute the previously stored VDD, R1, and the obtained Vo into the above formula (1) to obtain R2.
  • the obtained R2 As a first parallel resistance value of the first arc-shaped section 12 and the second arc-shaped section 13.
  • the processor may substitute the pre-stored preset resistance value (that is, the sum of r1 and r2) and R2 as the first parallel resistance value of the first arc segment 12 and the second arc segment 13 into the above-mentioned Equation (2) to get the product of r1 and r2. It can be understood that when the sum and product of r1 and r2 are known, the processor can calculate r1 and r2 very conveniently.
  • the processor may substitute the calculated r1 and r2 into the above-mentioned formula (3), respectively, to obtain ⁇ which is an included angle (ie, a folding angle) of the first screen 1 and the second screen 2.
  • the processor can calculate the ratio of r1 and r2 (ie r1 / r2). After that, the processor may substitute the calculated ratio of r1 and r2 into the above formula (4) to obtain ⁇ as the folding angle, which is also feasible.
  • the processor can calculate the first arc segment 12 and the second arc very conveniently.
  • the processor can calculate the folding angle of the folding screen terminal very conveniently according to the preset resistance value and the first parallel resistance value in the annular area.
  • the angle determination circuit further includes: a detection module; wherein the detection module is electrically connected to the processor, and the detection module is configured to detect a target event, where the angle between the first screen 1 and the second screen 2 is a preset angle event;
  • the processor is also used to:
  • the preset angle may be 45 degrees, 90 degrees, or 180 degrees.
  • the value of the preset angle is not limited to this. It is only necessary to ensure that the preset angle is between 0 degrees and 180 degrees. This embodiment There is no limitation on the specific value of the preset angle.
  • the resistance ring 3 Since the first conductive element 6 and the second conductive element 7 slide against the resistance ring 3 respectively, during the working process, the resistance ring 3 will be mechanically worn, and the degree of mechanical wear of the resistance ring 3 will increase as the working time increases. Will intensify. In this way, the actual resistance value (that is, the actual sum of r1 and r2) and the contact resistance of the ring region will change. Then, when the processor calculates the folding angle according to the above formula (1) to formula (3), The accuracy of the calculation results will be affected to some extent.
  • the processor may calibrate the sum (ie, the preset resistance value) of r1 and r2 involved in both formula (2) and formula (3).
  • a detection module for detecting a target event may be provided in the angle determination circuit; wherein the target event is an event whose folding angle is a preset angle.
  • the processor can detect the target event through the detection module.
  • the current ⁇ that is, the folding angle
  • the processor can obtain the Vo currently sampled by the ADC (that is, the voltage division value of the voltage divider circuit module), and substitute the VDD, R1, and Vo currently sampled by the ADC into the above formula (1) to R2 is obtained, and at this time, the obtained R2 is used as the second parallel resistance value of the first arc segment 12 and the second arc segment 13.
  • the processor may substitute R2 as the second parallel resistance value of the first arc segment 12 and the second arc segment 13 into the above formula (2), and substitute the preset angle as the value of ⁇ into the above formula. (3), and solve equations (2) and (3) simultaneously to obtain r1 and r2, respectively.
  • the processor may use the obtained sum of r1 and r2 as the calculated real-time resistance value of the ring region.
  • the processor can update the preset resistance value in the ring region to the calculated real-time resistance value, thereby realizing the calibration of the preset resistance value.
  • the processor can easily calibrate the preset resistance value. In this way, the processor can subsequently determine the folding angle based on the calibrated preset resistance value, so the accuracy of the determination result can be Effectively guaranteed.
  • the first screen 1 is fixedly provided with a first connection portion 14, the second screen 2 is fixedly provided with a second connection portion 15, and the second connection portion 15 and the first connection portion 14 are nested with each other. . It should be noted that when the first screen 1 and the second screen 2 are relatively rotated, the second connection portion 15 and the first connection portion 14 may be relatively rotated.
  • the detection module includes a slot-shaped photocoupler 16 and a metal baffle 17.
  • the slot-shaped photocoupler 16 is fixedly disposed on the wall surface of the second connection portion 15 and has an angle of 0 degrees with the display surface 10 of the second screen 2.
  • the metal blocking piece 17 is fixedly disposed on the wall surface of the first connection portion 14 and the included angle with the display surface 9 of the first screen 1 is a preset angle, and the preset angle is greater than 0 degrees and less than or equal to 180 degrees; wherein, the first screen 1 During the relative rotation with the second screen 2, the metal blocking piece 17 can enter and exit the groove 18 of the groove-shaped optical coupler 16.
  • the processor is electrically connected to the collector of the slot photocoupler 16, and the processor is specifically used for:
  • the second connection portion 15 may be sleeved outside the first connection portion 14.
  • the slot-shaped photocoupler 16 may be welded to the inner wall of the second connection portion 15, and the metal stopper 17 may be welded to the first connection portion 14.
  • the second connection portion 15 can also be nested inside the first connection portion 14.
  • the slot-shaped photocoupler 16 can be welded to the outer wall of the second connection portion 15, and the metal stopper 17 can be welded to the first connection portion 14.
  • Inner wall for ease of description, in this embodiment, the case where the second connecting portion 15 is sleeved outside the first connecting portion 14 is taken as an example for description.
  • the slot-shaped photocoupler 16 has the structure shown in FIG. 6.
  • the slot-shaped photocoupler 16 includes an infrared light-emitting tube 19 and a phototransistor 20.
  • the groove 18 of the slot-shaped photocoupler 16 is provided in the infrared light-emitting tube.
  • the collector of the slot-shaped photocoupler 16 is specifically the collector of the infrared light-emitting tube 19.
  • the phototransistor 20 when there is no metal shield between the infrared light-emitting tube 19 and the phototransistor 20, the phototransistor 20 is in a conductive state; when there is a metal shield between the infrared light-emitting tube 19 and the phototransistor 20, the phototransistor 20 is off . Since the slot-shaped photocoupler 16 has the above-mentioned features, the slot-shaped photocoupler 16 can be used for mechanical rotation positioning.
  • the preset angle is less than 180 degrees
  • the processor is specifically used for:
  • the preset angle is equal to 180 degrees
  • the processor is specifically used for:
  • the output state of the collector is the first state to indicate that the phototransistor 20 is on, and the output state of the collector is the second state to indicate that the phototransistor 20 is off;
  • the first state can be represented by 1 and the second state can be represented by 0.
  • the preset angle is less than 180 degrees (for example, 90 degrees)
  • the output state of the collector of the phototransistor 20 is the second state.
  • the phototransistor 20 is in a conducting state. Then, the output state of the collector of the phototransistor 20 is the first state.
  • the processor may determine that a target event is detected.
  • the preset angle is equal to 180 degrees
  • the phototransistor 20 is in an off state.
  • the output state of the collector of the phototransistor 20 is the second state.
  • the phototransistor 20 is in a conducting state.
  • the output state of the collector of the phototransistor 20 is the first state. Because the maximum folding angle can only be 180 degrees, when the folding angle is switched from not 180 degrees to 180 degrees, the output state of the collector will only be switched from the first state to the second state.
  • the processor may determine that a target event is detected.
  • the structure of the detection module is very simple, and the processor can reliably detect the target event by detecting a change in the output state of the collector.
  • the preset angle is less than 180 degrees
  • the processor is specifically used for:
  • the resistance value of the first resistor 5 and the average value of the two divided voltage values, the second parallel resistance values of the first arc segment 12 and the second arc segment 13 are calculated.
  • the preset angle is 90 degrees.
  • the output state of the collector will switch from 0 to 1, and then from 1 to 0.
  • the processor can obtain two voltage division values of the voltage dividing circuit module, that is, V 90 1 and V 90 2 when the two output states before and after the output state switches to 1 are 0.
  • the processor can calculate the average of V 90 1 and V 90 2 , which is (V 90 1 + V 90 2 ) / 2.
  • the processor may substitute (V 90 1 + V 90 2 ) / 2 as the actual value of Vo into the above formula (1) for calculation, so as to avoid the slot-shaped photocoupler.
  • the structural dimensions of 16 and metal stopper 17 affect the calculation results.
  • the processor may perform the calculation based on the voltage value of the first power source 4, the resistance value of the first resistor 5, and the average value of the two divided voltage values.
  • the calculation of the second parallel resistance value can effectively prevent the structural size of the slot-shaped photocoupler 16 and the metal baffle 17 from affecting the calculation result, thereby effectively ensuring the calibration effect of the processor when calibrating the preset resistance value.
  • the outer wall of the first connecting portion 14 may be provided with two metal baffles 17 at the same time; among them, the preset angle corresponding to one metal baffle 17 may be 90 degrees, and the other metal baffle 17 The corresponding preset angle can be 180 degrees.
  • the processor can also calibrate the preset resistance value according to the preset angles of V 90 1 , V 90 2 and 180 degrees.
  • the processor when the processor detects that the output state of the collector has switched from 0 to 1, the processor can obtain the voltage division value V 180 0 of the voltage division module after the output state is switched to 1. . Then, according to the characteristics of the linear resistance, the processor can obtain V 180 according to the following formula (5).
  • V 180 V 180 0 + (V 90 1 --V 90 2 ) / 2 (5)
  • the processor may substitute V 180 as the actual value of Vo into the above formula (1) for calculation, and calibrate the preset resistance value according to the calculation result.
  • 0 degrees to 180 degrees can be divided into two sections of 0 to 90 degrees and 90 to 180 degrees. Linearity.
  • the processor can calibrate the preset resistance values separately.
  • the outer wall of the first connection portion 14 may be provided with two or more metal baffles 17 (for example, based on FIG. 5, a metal baffle 17 is provided at 170 degrees) to set the angle from 0 to 180 The degree is divided into two or more intervals.
  • the first screen 1 is fixedly provided with a first connection portion 14
  • the second screen 2 is fixedly provided with a second connection portion 15, and the second connection portion 15 and the first connection portion 14 are nested with each other.
  • the second connection portion 15 and the first connection portion 14 may be relatively rotated.
  • the detection module includes a second power source (not shown in the figure), a second resistor (not shown in the figure), a metal dome 21 (such as a soft metal dome), and a metal baffle 17.
  • One end of the second resistor is electrically connected to the output end of the second power source.
  • the voltage value of the second power source may be 1.8V.
  • the metal elastic piece 21 is fixedly disposed on the wall surface of the second connection portion 15 and has an angle of 0 degrees with the display surface 10 of the second screen 2.
  • the metal elastic piece 21 is electrically connected to the other end of the second resistor.
  • the metal baffle 17 is fixedly disposed on the wall surface of the first connection portion 14 and the included angle between the metal baffle 17 and the display surface 9 of the first screen 1 is a preset angle.
  • the metal baffle 17 is grounded, and the preset angle is greater than 0 degrees and less than or equal to 180 degrees;
  • the metal elastic piece 21 and the metal blocking piece 17 may be in contact with each other.
  • the metal blocking piece 17 can be connected to the main ground of the mobile phone.
  • the processor is also electrically connected to the metal dome 21, and the processor is specifically used for:
  • the second connection portion 15 may be sleeved outside the first connection portion 14.
  • the metal elastic piece 21 may be welded to the inner wall of the second connection portion 15, and the metal stopper 17 may be welded to the outer wall of the first connection portion 14.
  • the second connection portion 15 can also be sleeved inside the first connection portion 14.
  • the metal elastic piece 21 can be welded to the outer wall of the second connection portion 15, and the metal stopper 17 can be welded to the inner wall of the first connection portion 14.
  • the case where the second connecting portion 15 is sleeved outside the first connecting portion 14 is taken as an example for description.
  • the signal state of the metal dome 21 is a third state to indicate that no current passes through the metal dome 21, and the signal state of the metal dome 21 is a fourth state to indicate that a current is passed through the metal dome 21;
  • the three states can be represented by 1, and the fourth state can be represented by 0.
  • the number of the metal blocking pieces 17 may be one, two, three, or more than three, which are not listed here one by one.
  • the processor may determine that a target event is detected.
  • the structure of the detection module is very simple, and the processor can reliably detect the target event by detecting a change in the signal state of the metal dome 21.
  • the processor is specifically configured to:
  • the first arc is calculated according to the voltage value of the first power source 4, the resistance value of the first resistor 5, and the obtained divided voltage value.
  • the preset angle is 90 degrees. If the metal dome 21 is a soft metal dome, the metal dome 21 is in contact with the metal dome 17 (that is, the folding angle is 90 degrees) and detached from the metal dome 17 in the process of the metal dome 21 will vibrate. Due to the vibration of the metal dome 21, even if the folding angle is not 90 degrees (for example, 91 degrees, 92 degrees, etc.), the processor may still detect that the signal state of the metal dome 21 is switched from the third state to the fourth state. At this time, the processor calibrates the preset resistance value according to the folding angle of 90 degrees, which will cause the preset preset resistance value to be different from the actual situation.
  • the processor may use a debounce algorithm. Specifically, the processor may store a correspondence between a preset angle and a preset voltage range; wherein the preset voltage range corresponding to any preset angle includes a voltage dividing circuit module when the folding angle is a preset angle Reasonable value of the partial pressure value.
  • the preset voltage range corresponding to 90 degrees can be (V 90 3 , V 90 4 ); among them, V 90 3 is less than V 90 4 , and V 90 3 can be considered as a certain folding angle (for example, 90- ⁇
  • V 90 4 can be regarded as a partial pressure value corresponding to another folding angle (for example, the folding angle of 90 + ⁇ ), and the value of ⁇ is very small.
  • the processor can obtain a divided voltage value obtained by sampling by the ADC. Next, the processor can determine whether the obtained divided voltage value is between V 90 3 and V 90 4 .
  • the processor may calculate the second parallel resistance value to calibrate the preset resistance value.
  • the processor can accurately recognize that the folding angle is a preset angle. Only when the folding angle is indeed a preset angle, the processor will calibrate the preset resistance value. Effectively save processor resource consumption and guarantee the calibration effect when calibrating the preset resistance value.
  • the above-mentioned calibration method using the slot-shaped photocoupler 16 and the calibration method using the metal baffle 17 may be combined to improve the calibration accuracy of the preset resistance value.
  • the outer wall of the second connection portion 15 may be provided with a slot-shaped photocoupler 16 and a metal baffle 17 at the same time; wherein the slot-shaped photocoupler 16 may be used to detect that the folding angle is not 180 degrees (for example, 90 degrees, 170 degrees, etc. ),
  • the metal stopper 17 can be used to detect the case where the folding angle is 180 degrees.
  • the types of folding screen terminals involved in the foregoing embodiments are various.
  • the folding screen terminal may be: a computer (Computer), a mobile phone, a tablet (Personal Computer), a laptop computer (Laptop), a personal digital assistant (personal digital assistant) (PDA), a mobile Internet electronic device ( Mobile Internet Device (MID), Wearable Device (Wearable Device), etc.
  • this embodiment when determining the folding angle, this embodiment can effectively avoid the influence of temperature factors on the determination result, thereby improving the accuracy of the determined folding angle.
  • An embodiment of the present disclosure further provides a folding screen terminal.
  • the folding screen terminal includes the foregoing angle determining circuit.
  • the specific implementation process of the angle determination circuit may refer to the foregoing description, and the embodiment of the present disclosure does not limit this in any way.
  • the folding screen terminal having the angle determining circuit also has corresponding technical effects, and details are not described herein again.
  • the method is applied to an angle determination circuit in a folding screen terminal.
  • the folding screen terminal includes a first screen and a second screen connected by a rotating shaft.
  • the rotating shaft is fixed with a resistance ring.
  • the angle determining circuit includes:
  • a first resistor one end of which is electrically connected to the output terminal of the first power source
  • a first conductive element the first conductive element is fixedly disposed on the first screen, one end of the first conductive element is electrically connected to the other end of the first resistor, and the other end of the first conductive element slides against the resistance ring;
  • the second conductive element is fixedly disposed on the second screen, one end of the second conductive element slides against the resistance ring, and the other end of the second conductive element is grounded; wherein the first conductive element and the second conductive element are The sliding path on the resistance ring is located in the same annular area in the circumferential direction of the resistance ring;
  • the method includes the following steps:
  • Step 801 Obtain a voltage division value between the other end of the first resistor in the angle determination circuit and the other end of the second conductive element in the angle determination circuit.
  • Step 802 Determine the clip between the first screen and the second screen in the folding screen terminal having the angle determination circuit according to the voltage value of the first power source, the resistance value of the first resistor, and the obtained divided voltage value in the angle determination circuit. angle.
  • the abutment position of the first conductive element and the second conductive element on the resistance ring divides the annular region into a first arc-shaped segment and a second arc-shaped segment, and the first arc-shaped segment is opposite to the second arc-shaped segment. Away from the display surface of the first screen;
  • an angle between the first screen and the second screen in the folding screen terminal having an angle determination circuit is calculated.
  • the angle determination circuit further includes:
  • a detection module configured to detect a target event, where the target event is an event where the angle between the first screen and the second screen is a preset angle;
  • the method also includes:
  • the first screen is fixedly provided with a first connection portion
  • the second screen is fixedly provided with a second connection portion
  • the second connection portion and the first connection portion are nested with each other;
  • Detection module including:
  • the slot-shaped photocoupler is fixedly disposed on the wall surface of the second connection portion and has an angle of 0 degrees with the display surface of the second screen;
  • a metal baffle the metal baffle is fixedly disposed on a wall surface of the first connecting portion and an included angle between the metal baffle and the display surface of the first screen is a preset angle, and the preset angle is greater than 0 degrees and less than or equal to 180 degrees; During the relative rotation of the second screen, the metal baffle can enter and exit the groove of the groove-shaped photocoupler;
  • obtaining a divided voltage value between the other end of the first resistor and the other end of the second conductive element includes:
  • the preset angle is less than 180 degrees
  • the preset angle is equal to 180 degrees
  • the preset angle is less than 180 degrees
  • the second parallel resistance value of the first arc segment and the second arc segment is calculated.
  • the first screen is fixedly provided with a first connection portion
  • the second screen is fixedly provided with a second connection portion
  • the second connection portion and the first connection portion are nested with each other;
  • Detection module including:
  • a second resistor one end of which is electrically connected to the output terminal of the second power source
  • a metal spring sheet the metal spring sheet is fixedly disposed on the wall surface of the second connection portion and the angle between the metal spring sheet and the display surface of the second screen is 0 degree, and the metal spring sheet is electrically connected to the other end of the second resistor;
  • a metal baffle the metal baffle is fixedly disposed on the wall surface of the first connection portion and the included angle with the display surface of the first screen is a preset angle; the metal baffle is grounded, and the preset angle is greater than 0 degrees and less than or equal to 180 degrees; During the relative rotation of the first screen and the second screen, the metal shrapnel and the metal baffle can contact each other;
  • obtaining a divided voltage value between the other end of the first resistor and the other end of the second conductive element includes:
  • calculating the second parallel resistance value of the first arc segment and the second arc segment according to the voltage value of the first power source, the resistance value of the first resistor, and the obtained voltage division value includes:
  • the first arc segment is calculated according to the voltage value of the first power source, the resistance value of the first resistor, and the obtained divided voltage value. And a second parallel resistance value of the second arc segment.
  • the angle determining circuit further includes an ADC, and the ADC is electrically connected to a common end of the first resistor and the first conductive element;
  • Obtaining a voltage division value between the other end of the first resistor in the circuit and the other end of the second conductive element in the circuit includes:
  • the folding angle of the folding screen terminal is determined by the angle determination circuit
  • the overall structure of the angle determination circuit is very simple
  • the angle determination circuit does not include a complicated mechanical structure
  • each of the angle determination circuits The performance of the element is not easily affected by the temperature factor. Therefore, compared with the related art, when determining the folding angle, the embodiments of the present disclosure can effectively avoid the influence of the temperature factor on the determination result, thereby improving the determined folding angle. Accuracy.
  • the folding screen terminal 900 includes, but is not limited to, a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, and a memory 909. , Processor 9010, and power supply 9011.
  • a radio frequency unit 901 for example, a radio frequency unit
  • a network module 902 for example, a radio frequency unit 901
  • an audio output unit 903 an input unit 904
  • a sensor 905 a display unit 906, a user input unit 907, an interface unit 908, and a memory 909.
  • Processor 9010 and power supply 9011.
  • the folding screen terminal 900 may include more or fewer components than shown in the figure, or combine some components. , Or different component arrangements.
  • the folding screen terminal 900 includes, but is not limited to, a mobile phone, a tablet computer, a palmtop computer, a car terminal, a wearable device, a pedometer, and the like. It should be noted that the folding screen terminal 900 includes a first screen and a second screen that are connected by a rotating shaft, and a resistance ring is provided on the outer shaft of the rotating shaft.
  • the folding screen terminal 900 further includes an angle determining circuit.
  • the circuit includes:
  • a first resistor one end of which is electrically connected to the output terminal of the first power source
  • a first conductive element the first conductive element is fixedly disposed on the first screen, one end of the first conductive element is electrically connected to the other end of the first resistor, and the other end of the first conductive element slides against the resistance ring;
  • the second conductive element is fixedly disposed on the second screen, one end of the second conductive element slides against the resistance ring, and the other end of the second conductive element is grounded; wherein the first conductive element and the second conductive element are The sliding path on the resistance ring is located in the same annular area in the circumferential direction of the resistance ring;
  • the processor 9010 is used for:
  • the angle between the first screen and the second screen in the folding screen terminal having the angle determination circuit is determined.
  • the folding angle of the folding screen terminal 900 is determined by an angle determination circuit.
  • the overall structure of the angle determination circuit is very simple.
  • the angle determination circuit does not include a complicated mechanical structure, and the performance of each element in the angle determination circuit It is not easily affected by the temperature factor. Therefore, compared with the related art, when determining the folding angle, the embodiments of the present disclosure can effectively avoid the influence of the temperature factor on the determination result, thereby improving the accuracy of the determined folding angle.
  • the abutment position of the first conductive element and the second conductive element on the resistance ring divides the annular region into a first arc-shaped segment and a second arc-shaped segment, and the first arc-shaped segment is opposite to the second arc-shaped segment. Away from the display surface of the first screen;
  • Processor 9010 specifically for:
  • an angle between the first screen and the second screen in the folding screen terminal having an angle determination circuit is calculated.
  • the angle determination circuit further includes:
  • a detection module configured to detect a target event, where the target event is an event where the angle between the first screen and the second screen is a preset angle;
  • the processor 9010 is also used for:
  • the first screen is fixedly provided with a first connection portion
  • the second screen is fixedly provided with a second connection portion
  • the second connection portion and the first connection portion are nested with each other;
  • Detection module including:
  • the slot-shaped photocoupler is fixedly disposed on the wall surface of the second connection portion and has an angle of 0 degrees with the display surface of the second screen;
  • a metal baffle the metal baffle is fixedly disposed on a wall surface of the first connecting portion and an included angle between the metal baffle and the display surface of the first screen is a preset angle, and the preset angle is greater than 0 degrees and less than or equal to 180 degrees; During the relative rotation of the second screen, the metal baffle can enter and exit the groove of the groove-shaped photocoupler;
  • Processor 9010 specifically for:
  • the preset angle is less than 180 degrees
  • Processor 9010 specifically for:
  • the preset angle is equal to 180 degrees
  • Processor 9010 specifically for:
  • the preset angle is less than 180 degrees
  • Processor 9010 specifically for:
  • the second parallel resistance value of the first arc segment and the second arc segment is calculated.
  • the first screen is fixedly provided with a first connection portion
  • the second screen is fixedly provided with a second connection portion
  • the second connection portion and the first connection portion are nested with each other;
  • Detection module including:
  • a second resistor one end of which is electrically connected to the output terminal of the second power source
  • a metal spring sheet the metal spring sheet is fixedly disposed on the wall surface of the second connection portion and the angle between the metal spring sheet and the display surface of the second screen is 0 degree, and the metal spring sheet is electrically connected to the other end of the second resistor;
  • a metal baffle the metal baffle is fixedly disposed on the wall surface of the first connection portion and the included angle with the display surface of the first screen is a preset angle; the metal baffle is grounded, and the preset angle is greater than 0 degrees and less than or equal to 180 degrees; During the relative rotation of the first screen and the second screen, the metal shrapnel and the metal baffle can contact each other;
  • Processor 9010 specifically for:
  • processor 9010 is specifically configured to:
  • the first arc segment is calculated according to the voltage value of the first power source, the resistance value of the first resistor, and the obtained divided voltage value. And a second parallel resistance value of the second arc segment.
  • the angle determining circuit further includes an ADC, and the ADC is electrically connected to a common end of the first resistor and the first conductive element;
  • Processor 9010 specifically for:
  • the radio frequency unit 901 may be used to receive and send signals during the transmission and reception of information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 9010; The uplink data is sent to the base station.
  • the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 901 can also communicate with a network and other devices through a wireless communication system.
  • the folding screen terminal provides users with wireless broadband Internet access through the network module 902, such as helping users to send and receive email, browse web pages, and access streaming media.
  • the audio output unit 903 may convert audio data received by the radio frequency unit 901 or the network module 902 or stored in the memory 909 into audio signals and output them as sound. Moreover, the audio output unit 903 may also provide audio output (for example, a call signal receiving sound, a message receiving sound, etc.) related to a specific function performed by the folding screen terminal 900.
  • the audio output unit 903 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 904 is used for receiving audio or video signals.
  • the input unit 904 may include a graphics processing unit (Graphics Processing Unit, GPU) 9041 and a microphone 9042.
  • the graphics processor 9041 pairs images 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. Data is processed.
  • the processed image frames may be displayed on the display unit 906.
  • the image frames processed by the graphics processor 9041 may be stored in the memory 909 (or other storage medium) or transmitted via the radio frequency unit 901 or the network module 902.
  • the microphone 9042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 901 in the case of a telephone call mode.
  • the folding screen terminal 900 further includes at least one sensor 905, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 9061 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 9061 when the folding screen terminal 900 is moved to the ear. And / or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, which can be used to identify the attitude of the folding screen terminal (such as horizontal and vertical screen switching, related Games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc .; sensor 905 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer , Infrared sensors, etc., will not repeat them here.
  • the display unit 906 is configured to display information input by the user or information provided to the user.
  • the display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in a form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light emitting diode (Organic Light-Emitting Diode, OLED), or the like.
  • LCD Liquid Crystal Display
  • OLED Organic Light-Emitting Diode
  • the user input unit 907 may be used to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the folding screen terminal.
  • the user input unit 907 includes a touch panel 9071 and other input devices 9072.
  • Touch panel 9071 also known as touch screen, can collect user's touch operations on or near it (such as the user using a finger, stylus, etc. any suitable object or accessory on touch panel 9071 or near touch panel 9071 operating).
  • the touch panel 9071 may include two parts, a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, and detects the signal caused by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it
  • the processor 9010 receives and executes a command sent by the processor 9010.
  • various types such as resistive, capacitive, infrared, and surface acoustic wave can be used to implement the touch panel 9071.
  • the user input unit 907 may further include other input devices 9072.
  • other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, and details are not described herein again.
  • the touch panel 9071 may be overlaid on the display panel 9061.
  • the touch panel 9071 detects a touch operation on or near the touch panel 9071, the touch panel 9071 transmits the touch operation to the processor 9010 to determine the type of the touch event.
  • the type of event provides corresponding visual output on the display panel 9061.
  • the touch panel 9071 and the display panel 9061 are implemented as two independent components to implement the input and output functions of the folding screen terminal, in some embodiments, the touch panel 9071 and the display panel 9061 may be used. It is integrated to realize the input and output functions of the folding screen terminal, which is not specifically limited here.
  • the interface unit 908 is an interface for connecting an external device with the folding screen terminal 900.
  • the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, and audio input / output (I / O) port, video I / O port, headphone port, and more.
  • the interface unit 908 may be used to receive an input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements in the folding screen terminal 900 or may be used in the folding screen terminal 900 Transfer data to and from external devices.
  • the memory 909 may be used to store software programs and various data.
  • the memory 909 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store data according to Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 909 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 9010 is a control center of the folding screen terminal, and connects various parts of the entire folding screen terminal by using various interfaces and lines, and runs or executes software programs and / or modules stored in the memory 909 and calls stored in the memory 909 Data, execute various functions of the folding screen terminal and process data, so as to monitor the folding screen terminal as a whole.
  • the processor 9010 may include one or more processing units; optionally, the processor 9010 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, etc.
  • the tuning processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 9010.
  • the folding screen terminal 900 may further include a power source 9011 (such as a battery) for supplying power to various components.
  • a power source 9011 such as a battery
  • the power source 9011 may be logically connected to the processor 9010 through a power management system, thereby implementing management of charging, discharging, and power through the power management system. Consumption management and other functions.
  • folding screen terminal 900 includes some functional modules that are not shown, and details are not described herein again.
  • an embodiment of the present disclosure further provides a folding screen terminal, which includes a processor 9010 and a memory 909, and a computer program stored on the memory 909 and executable on the processor 9010.
  • the computer program is processed by the processor 9010.
  • each process of the embodiment of the angle determination method is implemented, and the same technical effects can be achieved. To avoid repetition, details are not described herein again.
  • An embodiment of the present disclosure also provides a computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the processes of the foregoing angle determination method embodiments are implemented, and the same technology can be achieved. Effect, in order to avoid repetition, it will not be repeated here.
  • the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

Abstract

本公开提供一种角度确定电路、方法及折叠屏终端。该电路应用于折叠屏终端，折叠屏终端包括通过转轴转动连接的第一屏幕和第二屏幕，转轴外固定套设有电阻圈，该电路包括：第一电源；第一电阻，一端与第一电源电连接；第一导电元件，固设于第一屏幕，其一端与第一电阻的另一端电连接，其另一端滑动抵靠于电阻圈；第二导电元件，固设于第二屏幕，其一端滑动抵靠于电阻圈，其另一端接地；处理器，用于获取第一电阻的另一端与第二导电元件的另一端之间的分压值，根据第一电源的电压值、第一电阻的电阻值和分压值，确定第一屏幕和第二屏幕的夹角。

Description

角度确定电路、方法及折叠屏终端
相关申请的交叉引用
本申请主张在2018年9月20日在中国提交的中国专利申请号No.201811101734.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开实施例涉及折叠屏技术领域，尤其涉及一种角度确定电路、方法及折叠屏终端。
背景技术
随着通信技术的迅速发展，折叠屏终端的使用越来越普遍。一般而言，折叠屏终端包括转动连接的两块屏幕，用户可以根据实际使用需要，调节两块屏幕的夹角(该夹角也可称为折叠角度，折叠角度可以呈0度至180度)。
在许多情况下，用户往往希望能够确定折叠屏终端的折叠角度，目前常用的确定方法是：在两块屏幕中分别加入重力传感器，根据重力传感器的分量数据，计算折叠角度。然而，重力传感器中包含较为复杂的机械结构，该机械结构容易受到热应力的作用，这样，重力传感器的分量数据非常容易受到温度因素的影响，因此，上述确定方法的准确度较低。
发明内容
本公开实施例提供一种角度确定电路、方法及折叠屏终端，以解决现有确定折叠屏终端的折叠角度的方法准确度较低的问题。
为了解决上述技术问题，本公开是这样实现的：
第一方面，本公开实施例提供一种角度确定电路，应用于折叠屏终端，所述折叠屏终端包括通过转轴转动连接的第一屏幕和第二屏幕，所述转轴外固定套设有电阻圈，所述电路包括：
第一电源；
第一电阻，所述第一电阻的一端与所述第一电源的输出端电连接；
第一导电元件，所述第一导电元件固定设置于所述第一屏幕，所述第一导电元件的一端与所述第一电阻的另一端电连接，所述第一导电元件的另一端滑动抵靠于所述电阻圈；
第二导电元件，所述第二导电元件固定设置于所述第二屏幕，所述第二导电元件的一端滑动抵靠于所述电阻圈，所述第二导电元件的另一端接地；其中，所述第一导电元件和所述第二导电元件在所述电阻圈上的滑动路径位于所述电阻圈周向的同一环形区域；
处理器，用于获取所述第一电阻的另一端与所述第二导电元件的另一端之间的分压值，并根据所述第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，确定所述第一屏幕和所述第二屏幕的夹角。
第二方面，本公开实施例提供一种折叠屏终端，包括上述的角度确定电路。
第三方面，本公开实施例提供一种角度确定方法，应用于上述的角度确定电路，所述方法包括：
获取所述电路中的第一电阻的另一端与所述电路中的第二导电元件的另一端之间的分压值；
根据所述电路中的第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，确定具有所述电路的折叠屏终端中的第一屏幕和第二屏幕的夹角。
第四方面，本公开实施例提供一种折叠屏终端，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现上述的角度确定方法的步骤。
本公开实施例中，折叠屏终端中可以设置角度确定电路，角度确定电路可以包括第一电源、第一电阻、第一导电元件、第二导电元件和处理器，折叠屏终端的转轴外可以固定套设有电阻圈。通过对第一导电元件和第二导电元件与其他部件的连接关系的合理设置，第一导电元件、电阻圈和第二导电元件可以构成分压电路模块，且分压电路模块的电阻值和分压值与折叠屏的折叠角度关联。基于分压电路模块的电阻值和分压值与折叠屏的折叠角度之间的关联性，在获取到分压电路模块的分压值之后，处理器可以根据第一电源的电压值、第一电阻的电阻值和分压电路模块的分压值，确定折叠屏终端 的折叠角度。
可以看出，本公开实施例中，折叠屏终端的折叠角度通过角度确定电路确定，角度确定电路的整体结构非常简单，角度确定电路中不包含复杂的机械结构，并且，角度确定电路中的各元件的性能并不容易受到温度因素的影响，因此，与相关技术相比，在确定折叠角度时，本公开实施例能够有效地避免温度因素对确定结果的影响，从而提高确定出的折叠角度的准确度。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获取其他的附图。
图1是本公开实施例提供的角度确定电路的结构示意图之一；
图2是本公开实施例提供的折叠屏终端的结构示意图；
图3是本公开实施例提供的角度确定电路的工作流程图；
图4是本公开实施例提供的角度确定电路的等效电路图；
图5是本公开实施例提供的角度确定电路的结构示意图之二；
图6是槽形光耦的结构示意图；
图7是本公开实施例提供的角度确定电路的结构示意图之三；
图8是本公开实施例提供的角度确定方法的流程图；
图9是本公开实施例提供的折叠屏终端的硬件结构示意图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获取的所有其他实施例，都属于本公开保护的范围。
参见图1，图中示出了本公开实施例提供的角度确定电路的结构示意图。该角度确定电路应用于折叠屏终端，折叠屏终端包括通过转轴转动连接的第 一屏幕1和第二屏幕2，转轴外固定套设有电阻圈3。
由于第一屏幕1和第二屏幕2通过转轴转动连接，第一屏幕1和第二屏幕2的相对位置可以呈图1或者图2中所示的状态。在图2中，连接段101、连接段102和连接段103固定设置于第一屏幕1，连接段201和连接段202固定设置于第二屏幕2。
如图1所示，本公开实施例提供的角度确定电路包括：第一电源4、第一电阻5、第一导电元件6、第二导电元件7和处理器。
其中，第一电阻5的一端与第一电源4的输出端电连接。具体地，第一电源4可以为稳压电源。
第一导电元件6固定设置于第一屏幕1，第一导电元件6的一端与第一电阻5的另一端电连接，第一导电元件6的另一端滑动抵靠于电阻圈3。
具体地，第一导电元件6可以采用金属材料制成，第一导电元件6可以平行于第一屏幕1的显示面9。另外，第一导电元件6的另一端可以设置有第一接触弹片，第一接触弹片可以滑动抵靠于电阻圈3，第一接触弹片与电阻圈3之间的接触方式可以为点接触。
第二导电元件7固定设置于第二屏幕2，第二导电元件7的一端滑动抵靠于电阻圈3，第二导电元件7的另一端接地；其中，第一导电元件6和第二导电元件7在电阻圈3上的滑动路径位于电阻圈3周向的同一环形区域。
具体地，第二导电元件7也可以采用金属材料制成，第二导电元件7与第一导电元件6所采用的金属材料可以相同，也可以不相同；第二导电元件7可以平行于第二屏幕2的显示面10。另外，第二导电元件7的一端可以设置有第二接触弹片，第二接触弹片可以滑动抵靠于电阻圈3，第二接触弹片与电阻圈3之间的接触方式也可以为点接触。
本公开实施例中，第一接触弹片和第二接触弹片均滑动抵靠于电阻圈3，在第一屏幕1和第二屏幕2相对转动的过程中，第一接触弹片和第二接触弹片在电阻圈3上的触点位置会发生相对变化。
由于第一导电元件6和第二导电元件7在电阻圈3上的滑动路径位于电阻圈3周向的同一环形区域，随着第一接触弹片和第二接触弹片在电阻圈3上的触点位置的相对变化，由第一导电元件6、电阻圈3和第二导电元件7 三者组成的分压电路模块的电阻值会发生变化，分压电路模块在角度确定电路中的分压值也会发生相应变化。可以看出，分压电路模块的电阻值与第一屏幕1和第二屏幕2的夹角之间呈现一定的关系，换句话说，分压电路模块的电阻值与折叠屏终端的折叠角度相关联。
处理器用于获取第一电阻5的另一端与第二导电元件7的另一端之间的分压值，并根据第一电源4的电压值、第一电阻5的电阻值和所获取的分压值，计算第一屏幕1和第二屏幕2的夹角(也可以称之为折叠角度)。
其中，处理器可以为中央处理器(Central Processing Unit，CPU)。
需要说明的是，第一电阻5的另一端与第二导电元件7的另一端之间的分压值可以认为是分压电路模块在角度确定电路中的分压值，处理器获取该分压值的具体实现形式多样，下面进行举例介绍。
在一种实施方式中，角度确定电路还包括：模数转换器(Analog-to-Digital Converter，ADC)；其中，处理器通过ADC与第一电阻5和第一导电元件6的公共端电连接，处理器具体用于获取ADC采样得到的分压值。
如图1所示，第一电阻5的另一端可以通过连接线路11与第一导电元件6的一端电连接，处理器可以通过ADC与连接线路11电连接，以实现处理器与第一电阻5和第一导电元件6的公共端的电连接。这样，ADC可以采用得到Vo，Vo即为分压电路模块的分压值。
当采用这种实施方式时，如图3所示，随着第一屏幕1和第二屏幕2的相对转动，折叠屏终端的折叠角度发生变化。这样，分压电路模块的电阻值发生变化，分压电路模块的分压值发生相应变化。接下来，ADC可以采样得到分压电路模块的分压值，并将采样得到的分压值上报给处理器。之后，处理器可以根据ADC上报的分压值，确定出折叠屏终端的折叠角度。
可以看出，这种实施方式中，处理器通过ADC能够非常便捷地获取到分压电路模块的分压值。另外，ADC可以将模拟信号转换为数字信号，因此，处理器最终获取的电压值是数字信号，处理器能够对该数字信号进行识别和处理，以便于基于该数字信号，确定折叠角度。
当然，处理器获取分压电路模块的分压值的方式并不局限于此，具体可以根据实际情况来确定，本公开实施例对此不做任何限定。
本公开实施例中，折叠屏终端中可以设置角度确定电路，角度确定电路可以包括第一电源4、第一电阻5、第一导电元件6、第二导电元件7和处理器，折叠屏终端的转轴外可以固定套设有电阻圈3。通过对第一导电元件6和第二导电元件7与其他部件的连接关系的合理设置，第一导电元件6、电阻圈3和第二导电元件7可以构成分压电路模块，且分压电路模块的电阻值和分压值与折叠屏的折叠角度关联。基于分压电路模块的电阻值和分压值与折叠屏的折叠角度之间的关联性，在获取到分压电路模块的分压值之后，处理器可以根据第一电源4的电压值、第一电阻5的电阻值和分压电路模块的分压值，确定折叠屏终端的折叠角度。
可以看出，本公开实施例中，折叠屏终端的折叠角度通过角度确定电路确定，角度确定电路的整体结构非常简单，角度确定电路中不包含复杂的机械结构，并且，角度确定电路中的各元件的性能并不容易受到温度因素的影响，因此，与相关技术相比，在确定折叠角度时，本公开实施例能够有效地避免温度因素对确定结果的影响，从而提高确定出的折叠角度的准确度。
可选地，如图1所示，第一导电元件6和第二导电元件7在电阻圈3上的抵靠位置将环形区域划分为第一弧形段12和第二弧形段13，第一弧形段12相对于第二弧形段13远离第一屏幕1的显示面9。可以理解的是，第一弧形段12相对于第二弧形段13也远离第二屏幕2的显示面10。
处理器具体用于：
根据第一电源4的电压值、第一电阻5的电阻值和所获取的分压值，计算第一弧形段12和第二弧形段13的第一并联电阻值；
根据环形区域的预设电阻值和第一并联电阻值，计算第一屏幕1和第二屏幕2的夹角。
需要指出的是，无论第一屏幕1和第二屏幕2的相对位置呈何种状态，图1中的角度确定电路均可以等效为图4中所示的电路。在图4中，位于下端的电阻可以认为是可变电阻，其相当于图1中由第一导电元件6、电阻圈3和第二导电元件7构成的分压电路模块；位于上端的电阻可以认为是固定电阻，其相当于图1中的第一电阻5；VDD相当于图1中第一电源4的电压值；Vo为ADC采样得到的分压值(即分压电路模块的分压值)。假设第一电阻5 的电阻值为R1，分压电路模块的电阻值为R2，那么，R1、R2、VDD和Vo满足下面的公式(1)。
Vo＝VDD×R2/(R1+R2)                        (1)
需要说明的是，与电阻类元件(例如电阻圈3、第一电阻5)的电阻值相比，第一导电元件6和第二导电元件7的电阻值非常小，可以忽略不计。结合图1容易看出，分压电路模块的电阻值具体可以为第一弧形段12和第二弧形段13的并联电阻值。假设第一弧形段12的电阻值为r1，第二弧形段13的电阻值为r2，那么，r1、r2和R2三者满足下面的公式(2)。
R2＝r1×r2/(r1+r2)                            (2)
假设第一屏幕1和第二屏幕2的夹角(即折叠角度)为Ф，由图1可知，r1、r2和Ф三者满足一定的几何关系，该几何关系具体见下面的公式(3)。
Ф＝360×r2/(r1+r2)                            (3)
其中，r1和r2的和值(即r1+r2)为环形区域的预设电阻值，理想情况下，预设电阻值可以认为是一个确定的值，处理器中可以预先存储有预设电阻值。
本实施例中，处理器中还可以预先存储有第一电源4的电压值VDD和第一电阻5的电阻值R1。处理器可以获取ADC采样得到的分压电路模块的分压值Vo，并将预先存储的VDD、R1，以及所获取的Vo代入上述的公式(1)，以得到R2，此时，得到的R2作为第一弧形段12和第二弧形段13的第一并联电阻值。
接下来，处理器可以将预先存储的预设电阻值(即r1和r2的和值)，以及作为第一弧形段12和第二弧形段13的第一并联电阻值的R2代入上述的公式(2)，以得到r1和r2的乘积。可以理解的是，在r1和r2的和值和乘积均为已知的情况下，处理器可以非常便捷地计算出r1和r2。
之后，处理器可以将计算出的r1和r2分别代入上述的公式(3)，以得到作为第一屏幕1和第二屏幕2的夹角(即折叠角度)的Ф。
需要指出的是，上述的公式(3)可以变形为下面的公式(4)。
Ф＝360×1/(r1/r2+1)                            (4)
那么，在计算出r1和r2之后，处理器可以计算r1和r2的比值(即r1/r2)。 之后，处理器可以将计算出的r1和r2的比值代入上述的公式(4)，以得到作为折叠角度的Ф，这也是可行的。
可以看出，本实施例中，根据第一电源4的电压值、第一电阻5的电阻值和所获取的分压值，处理器可以非常便捷地计算出第一弧形段12和第二弧形段13的第一并联电阻值。之后，根据环形区域的预设电阻值和第一并联电阻值，处理器可以非常便捷地计算出折叠屏终端的折叠角度。
可选地，角度确定电路还包括：检测模块；其中，检测模块与处理器电连接，检测模块用于检测目标事件，目标事件为第一屏幕1和第二屏幕2的夹角为预设角度的事件；
处理器还用于：
在通过检测模块检测到目标事件的情况下，获取第一电阻5的另一端与第二导电元件7的另一端之间的分压值；
根据第一电源4的电压值、第一电阻5的电阻值和所获取的分压值，计算第一弧形段12和第二弧形段13的第二并联电阻值；
根据预设角度和第二并联电阻值，计算环形区域的实时电阻值；
将环形区域的预设电阻值更新为计算得到的实时电阻值。
其中，预设角度可以为45度、90度或者180度，当然，预设角度的取值并不局限于此，只需保证预设角度位于0度至180度之间即可，本实施例对预设角度的具体取值不做任何限定。
由于第一导电元件6和第二导电元件7分别滑动抵靠于电阻圈3，在工作过程中，电阻圈3会产生机械磨损，并且，随着工作时间的增加，电阻圈3机械磨损的程度会加烈。这样，环形区域的实际电阻值(即r1和r2的实际和值)以及接触阻抗均会发生变化，那么，在处理器根据上述的公式(1)至公式(3)进行折叠角度的计算时，计算结果的准确度会受到一定的影响。
有鉴于此，本实施例中，处理器可以对公式(2)和公式(3)中均涉及到的r1和r2的和值(即预设电阻值)进行校准。为了实现对预设电阻值的校准，角度确定电路中可以设置用于检测目标事件的检测模块；其中，目标事件为折叠角度为预设角度的事件。
由于检测模块的设置，处理器可以通过检测模块检测目标事件。在通过 检测模块检测到目标事件的情况下，可以认为当前的Ф(即折叠角度)为预设角度。这时，处理器可以获取ADC当前采样得到的Vo(即分压电路模块的分压值)，并将预先存储的VDD、R1，以及ADC当前采样得到的Vo代入上述的公式(1)，以得到R2，此时，得到的R2作为第一弧形段12和第二弧形段13的第二并联电阻值。
接下来，处理器可以将作为第一弧形段12和第二弧形段13的第二并联电阻值的R2代入上述的公式(2)，将预设角度作为Ф的取值代入上述的公式(3)，并将公式(2)和公式(3)联立求解，以分别得到r1和r2。之后，处理器可以将得到的r1和r2的和值作为计算得到的环形区域的实时电阻值。最后，处理器可以将环形区域的预设电阻值更新为计算得到的实时电阻值，从而实现对预设电阻值的校准。
可以看出，本实施例中，处理器可以非常便捷地实现对预设电阻值的校准，这样，处理器后续可以根据经校准后的预设电阻值确定折叠角度，故确定结果的准确度能够得到有效地保证。
可选地，如图5所示，第一屏幕1固定设置有第一连接部14，第二屏幕2固定设置有第二连接部15，第二连接部15和第一连接部14相互套设。需要指出的是，在第一屏幕1和第二屏幕2相对转动的情况下，第二连接部15和第一连接部14可以发生相对转动。
检测模块包括：槽形光耦16和金属挡片17。
其中，槽形光耦16固定设置于第二连接部15的壁面且与第二屏幕2的显示面10的夹角为0度。
金属挡片17固定设置于第一连接部14的壁面且与第一屏幕1的显示面9的夹角为预设角度，预设角度大于0度且小于等于180度；其中，第一屏幕1和第二屏幕2相对转动的过程中，金属挡片17可进出槽形光耦16的凹槽18。
处理器与槽形光耦16的集电极电连接，处理器具体用于：
在检测到集电极的输出状态发生预设变化的情况下，确定检测到目标事件。
具体地，第二连接部15可以套设于第一连接部14外，这时，槽形光耦 16可以焊接于第二连接部15的内壁，金属挡片17可以焊接于第一连接部14的外壁。当然，第二连接部15也可以套设于第一连接部14内，这时，槽形光耦16可以焊接于第二连接部15的外壁，金属挡片17可以焊接于第一连接部14的内壁。为了便于说明，本实施例中均以第二连接部15套设于第一连接部14外的情况为例进行说明。
一般而言，槽形光耦16为图6中所示的结构，槽形光耦16中包括红外发光管19和光电三极管20；其中，槽形光耦16的凹槽18设置于红外发光管19和光电三极管20之间，槽形光耦16的集电极具体为红外发光管19的集电极。
可以理解的是，在红外发光管19和光电三极管20中间没有金属遮挡时，光电三极管20呈导通状态；在红外发光管19和光电三极管20中间有金属遮挡时，光电三极管20呈断开状态。由于槽形光耦16具有上述特征，槽形光耦16可以用于机械旋转定位。
本实施例中，根据预设角度的不同，处理器通过检测模块检测目标事件的方式存在一定的差别。
在一种实现形式中，预设角度小于180度；
处理器具体用于：
在检测到集电极的输出状态由第一状态切换为第二状态后切换回第一状态的情况下，确定检测到目标事件。
在另一种实现形式中，预设角度等于180度；
处理器具体用于：
在检测到集电极的输出状态由第一状态切换为第二状态的情况下，确定检测到目标事件。
在以上两种实现形式中，集电极的输出状态为第一状态用于表征光电三极管20呈导通状态，集电极的输出状态为第二状态用于表征光电三极管20呈断开状态；其中，第一状态可以用1进行表示，第二状态可以用0进行表示。
假设预设角度小于180度(例如为90度)，由图5容易看出，在折叠角度为90度的情况下，金属挡片17的一端正好位于凹槽18内，这时，光电三 极管20呈断开状态，那么，光电三极管20的集电极的输出状态为第二状态。在折叠角度不为90度的情况下，金属挡片17的一端位于凹槽18外，这时，光电三极管20呈导通状态，那么，光电三极管20的集电极的输出状态为第一状态。
这样，在第一连接部14和第二连接部15相对转动，以使折叠角度跨越90度的过程中，集电极的输出状态会由第一状态切换为第二状态后切换回第一状态。有鉴于此，在检测到集电极的输出状态由第一状态切换为第二状态后切换回第一状态的情况下，处理器可以确定检测到目标事件。
假设预设角度等于180度，由图5容易看出，在折叠角度为180度的情况下，金属挡片17的一端正好位于凹槽18内，这时，光电三极管20呈断开状态，那么，光电三极管20的集电极的输出状态为第二状态。在折叠角度不为180度的情况下，金属挡片17的一端位于凹槽18外，这时，光电三极管20呈导通状态，那么，光电三极管20的集电极的输出状态为第一状态。由于折叠角度最大只能是180度，因此，在折叠角度由不是180度切换为180度时，集电极的输出状态仅会由第一状态切换为第二状态。
这样，在第一连接部14和第二连接部15相对转动，以使折叠角度达到180度时，集电极的输出状态会由第一状态切换为第二状态。有鉴于此，在检测到集电极的输出状态由第一状态切换为第二状态后的情况下，处理器可以确定检测到目标事件。
可以看出，本实施例中，检测模块的结构非常简单，处理器通过检测集电极的输出状态变化即可可靠地检测出目标事件。
可选地，预设角度小于180度；
处理器具体用于：
在确定检测到目标事件的情况下，获取输出状态切换为第二状态之前和之后的两个第一状态下，第一电阻5的另一端与第二导电元件7的另一端之间的两个分压值；
根据第一电源4的电压值、第一电阻5的电阻值以及两个分压值的平均值，计算第一弧形段12和第二弧形段13的第二并联电阻值。
下面以一个具体的例子对本实施例的具体实施过程进行说明。
假设预设角度为90度，在折叠角度跨越90度的过程中，集电极的输出状态会经历从0到1，再从1到0的切换。处理器可以获取输出状态切换为1之前和之后的两个输出状态为0的情况下，分压电路模块的两个分压值，即V 90 1和V 90 2。接下来，处理器可以计算V 90 1和V 90 2的平均值，即(V 90 1+V 90 2)/2。之后，在进行第二并联电阻值的计算时，处理器可以将(V 90 1+V 90 2)/2作为Vo的实际取值代入上述的公式(1)进行计算，以避免槽形光耦16和金属挡片17的结构尺寸对计算结果造成影响。
可以看出，本实施例中，在预设角度小于180度的情况下，处理器可以根据第一电源4的电压值、第一电阻5的电阻值以及两个分压值的平均值来进行第二并联电阻值的计算，这样可以有效地避免槽形光耦16和金属挡片17的结构尺寸对计算结果造成影响，从而有效地保证处理器对预设电阻值进行校准时的校准效果。
可选地，如图5所示，第一连接部14的外壁可以同时设置两个金属挡片17；其中；一个金属挡片17对应的预设角度可以为90度，另一个金属挡片17对应的预设角度可以为180度。在得到V 90 1和V 90 2之后，处理器还可以根据V 90 1、V 90 2以及180度这个预设角度，对预设电阻值进行校准。
具体地，针对180度这个预设角度，在处理器检测到集电极的输出状态经历从0到1的切换时，处理器可以获取输出状态切换为1之后分压模块的分压值V 180 0。之后，按照线性电阻的特性，处理器可以根据下面的公式(5)，得到V 180。
V 180＝V 180 0+(V 90 1—V 90 2)/2        (5)
之后，在进行第二并联电阻值的计算时，处理器可以将V 180作为Vo的实际取值代入上述的公式(1)进行计算，并根据计算结果，对预设电阻值进行校准。
可以看出，本实施例中，通过在第一连接部14外壁设置两个金属挡片17，0度至180度可以被划分为0～90度和90～180度两个区间，结合电阻的线性度，在90度和180度处，处理器可以分别对预设电阻值进行校准。为了进一步提高校准效果，第一连接部14外壁可以设置两个以上的金属挡片17(例如在图5的基础上，在170度处再设置一个金属挡片17)，以将0度至 180度划分为两个以上的区间。
可选地，如图7所示，第一屏幕1固定设置有第一连接部14，第二屏幕2固定设置有第二连接部15，第二连接部15和第一连接部14相互套设。需要指出的是，在第一屏幕1和第二屏幕2相对转动的情况下，第二连接部15和第一连接部14可以发生相对转动。
检测模块包括：第二电源(图中未示出)、第二电阻(图中未示出)、金属弹片21(例如金属软弹片)和金属挡片17。
其中，第二电阻的一端与第二电源的输出端电连接。具体地，第二电源的电压值可以为1.8V。
金属弹片21固定设置于第二连接部15的壁面且与第二屏幕2的显示面10的夹角为0度，金属弹片21与第二电阻的另一端电连接。
金属挡片17固定设置于第一连接部14的壁面且与第一屏幕1的显示面9的夹角为预设角度，金属挡片17接地，预设角度大于0度且小于等于180度；其中，第一屏幕1和第二屏幕2相对转动的过程中，金属弹片21和金属挡片17可相接触。可选地，金属挡片17可以接手机主地。
处理器还与金属弹片21电连接，处理器具体用于：
在检测到金属弹片21的信号状态由第三状态切换为第四状态的情况下，确定检测到目标事件。
具体地，第二连接部15可以套设于第一连接部14外，这时，金属弹片21可以焊接于第二连接部15的内壁，金属挡片17可以焊接于第一连接部14的外壁。当然，第二连接部15也可以套设于第一连接部14内，这时，金属弹片21可以焊接于第二连接部15的外壁，金属挡片17可以焊接于第一连接部14的内壁。为了便于说明，本实施例中均以第二连接部15套设于第一连接部14外的情况为例进行说明。
本实施例中，金属弹片21的信号状态为第三状态用于表征金属弹片21上无电流通过，金属弹片21的信号状态为第四状态用于表征金属弹片21上有电流通过；其中，第三状态可以用1进行表示，第四状态可以用0进行表示。
具体地，金属挡片17的数量可以为一个、两个、三个或者三个以上，在 此不再一一列举。
由图7容易看出，在折叠角度为预设角度的情况下，金属弹片21和金属挡片17正好相接触，金属弹片21上会有电流通过，那么，金属弹片21的信号状态为第三状态。在折叠角度不为预设角度的情况下，金属弹片21和金属挡片17不相接触，金属弹片21上不会有电流通过，那么，金属弹片21的信号状态为第四状态。
这样，在第一连接部14和第二连接部15相对转动，以使折叠角度达到预设角度的情况下，金属弹片21的信号状态会由第三状态切换为第四状态。有鉴于此，在检测到金属弹片21的信号状态由第三状态切换为第四状态的情况下，处理器可以确定检测到目标事件。
可以看出，本实施例中，检测模块的结构非常简单，处理器通过检测金属弹片21的信号状态的变化即可可靠地检测出目标事件。
可选地，处理器具体用于：
在所获取的分压值位于预设角度对应的预设电压范围内的情况下，根据第一电源4的电压值、第一电阻5的电阻值和所获取的分压值，计算第一弧形段12和第二弧形段13的第二并联电阻值。
假设预设角度为90度，若金属弹片21为金属软弹片，那么，金属弹片21从与金属挡片17相接触(即折叠角度为90度)到脱离金属挡片17的过程中，金属弹片21会发生振动。由于金属弹片21的振动，即使折叠角度不为90度(例如为91度、92度等)，处理器仍有可能检测到金属弹片21的信号状态由第三状态切换为第四状态的情况，这时，处理器按照折叠角度为90度对预设电阻值进行校准会导致校准后的预设电阻值与实际情况不符。
为了解决上述问题，本实施例中，处理器可以使用消抖算法。具体地，处理器中可以存储有预设角度与预设电压范围之间的对应关系；其中，任一预设角度对应的预设电压范围中包括折叠角度为预设角度时，分压电路模块的分压值的合理取值。
举例而言，90度对应的预设电压范围可以为(V 90 3，V 90 4)；其中，V 90 3小于V 90 4，V 90 3可以认为是与某一折叠角度(例如90-△这个折叠角度)对应的分压值，V 90 4可以认为是与另一折叠角度(例如90+△这个折叠角度)对应 的分压值，△的取值非常小。这样，在通过检测金属弹片21的信号状态的变化检测出目标事件之后，处理器可以获取ADC采样得到的分压值。接下来，处理器可以判断获取的分压值是否位于V 90 3和V 90 4之间。
如果判断结果为是，处理器可以进行第二并联电阻值的计算，以对预设电阻值进行校准。
如果确定结果为否，这说明折叠角度实际上并不是预设角度，处理器检测到目标事件很有可能是由于金属弹片21的振动造成的，因此，处理器不进行第二并联电阻值的计算，也不对预设电阻值进行校准。
可以看出，本实施例中，处理器可以准确地识别出折叠角度为预设角度的情况，只有当折叠角度确实为预设角度时，处理器才会对预设电阻值进行校准，这样可以有效地节约处理器的资源消耗，并保证对预设电阻值进行校准时的校准效果。
可选地，上述采用槽形光耦16进行校准的方式和采用金属挡片17进行校准的方式可以结合起来，以提高预设电阻值的校准精度。具体而言，第二连接部15的外壁可以同时设置槽形光耦16和金属挡片17；其中，槽形光耦16可以用于检测折叠角度不为180度(例如90度、170度等)的情况，金属挡片17可以用于检测折叠角度为180度的情况。
需要说明的是，上述实施例中涉及的折叠屏终端的类型多样。具体地，折叠屏终端可以为：计算机(Computer)、手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant，简称PDA)、移动上网电子设备(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)等。
综上，与相关技术相比，在确定折叠角度时，本实施例能够有效地避免温度因素对确定结果的影响，从而提高确定出的折叠角度的准确度。
本公开实施例还提供一种折叠屏终端，该折叠屏终端包括上述的角度确定电路。其中，角度确定电路的具体实施过程参照上述说明即可，本公开实施例对此不做任何限定。
由于角度确定电路具有上述技术效果，故具有该角度确定电路的折叠屏终端也具有相应的技术效果，在此不再赘述。
参见图8，图中示出了本公开实施例提供的角度确定方法的流程图。该方法应用于折叠屏终端中的角度确定电路，折叠屏终端包括通过转轴转动连接的第一屏幕和第二屏幕，转轴外固定套设有电阻圈，角度确定电路包括：
第一电源；
第一电阻，第一电阻的一端与第一电源的输出端电连接；
第一导电元件，第一导电元件固定设置于第一屏幕，第一导电元件的一端与第一电阻的另一端电连接，第一导电元件的另一端滑动抵靠于电阻圈；
第二导电元件，第二导电元件固定设置于第二屏幕，第二导电元件的一端滑动抵靠于电阻圈，第二导电元件的另一端接地；其中，第一导电元件和第二导电元件在电阻圈上的滑动路径位于电阻圈周向的同一环形区域；
如图8所示，该方法包括如下步骤：
步骤801，获取角度确定电路中的第一电阻的另一端与角度确定电路中的第二导电元件的另一端之间的分压值；
步骤802，根据角度确定电路中的第一电源的电压值、第一电阻的电阻值和所获取的分压值，确定具有角度确定电路的折叠屏终端中的第一屏幕和第二屏幕的夹角。
可选地，第一导电元件和第二导电元件在电阻圈上的抵靠位置将环形区域划分为第一弧形段和第二弧形段，第一弧形段相对于第二弧形段远离第一屏幕的显示面；
根据角度确定电路中的第一电源的电压值、第一电阻的电阻值和所获取的分压值，确定具有角度确定电路的折叠屏终端中的第一屏幕和第二屏幕的夹角，包括：
根据角度确定电路中的第一电源的电压值、第一电阻的电阻值和所获取的分压值，计算第一弧形段和第二弧形段的第一并联电阻值；
根据环形区域的预设电阻值和第一并联电阻值，计算具有角度确定电路的折叠屏终端中的第一屏幕和第二屏幕的夹角。
可选地，角度确定电路还包括：
检测模块，检测模块用于检测目标事件，目标事件为第一屏幕和第二屏幕的夹角为预设角度的事件；
该方法还包括：
在通过角度确定电路中的检测模块检测到目标事件的情况下，获取第一电阻的另一端与第二导电元件的另一端之间的分压值；
根据第一电源的电压值、第一电阻的电阻值和所获取的分压值，计算第一弧形段和第二弧形段的第二并联电阻值；
根据预设角度和第二并联电阻值，计算环形区域的实时电阻值；
将环形区域的预设电阻值更新为计算得到的实时电阻值。
可选地，第一屏幕固定设置有第一连接部，第二屏幕固定设置有第二连接部，第二连接部和第一连接部相互套设；
检测模块，包括：
槽形光耦，槽形光耦固定设置于第二连接部的壁面且与第二屏幕的显示面的夹角为0度；
金属挡片，金属挡片固定设置于第一连接部的壁面且与第一屏幕的显示面的夹角为预设角度，预设角度大于0度且小于等于180度；其中，第一屏幕和第二屏幕相对转动的过程中，金属挡片可进出槽形光耦的凹槽；
在通过角度确定电路中的检测模块检测到目标事件的情况下，获取第一电阻的另一端与第二导电元件的另一端之间的分压值，包括：
在检测到槽形光耦的集电极的输出状态发生预设变化的情况下，确定检测到目标事件，并获取第一电阻的另一端与第二导电元件的另一端之间的分压值。
可选地，预设角度小于180度；
在检测到槽形光耦的集电极的输出状态发生预设变化的情况下，确定检测到目标事件，包括：
在检测到槽形光耦的集电极的输出状态由第一状态切换为第二状态后切换回第一状态的情况下，确定检测到目标事件；
或者，
预设角度等于180度；
在检测到槽形光耦的集电极的输出状态发生预设变化的情况下，确定检测到目标事件，包括：
在检测到槽形光耦的集电极的输出状态由第一状态切换为第二状态的情况下，确定检测到目标事件。
可选地，预设角度小于180度；
确定检测到目标事件，并获取第一电阻的另一端与第二导电元件的另一端之间的分压值，包括：
确定检测到目标事件，并获取输出状态切换为第二状态之前和之后的两个第一状态下，第一电阻的另一端与第二导电元件的另一端之间的两个分压值；
根据第一电源的电压值、第一电阻的电阻值和所获取的分压值，计算第一弧形段和第二弧形段的第二并联电阻值，包括：
根据第一电源的电压值、第一电阻的电阻值以及两个分压值的平均值，计算第一弧形段和第二弧形段的第二并联电阻值。
可选地，第一屏幕固定设置有第一连接部，第二屏幕固定设置有第二连接部，第二连接部和第一连接部相互套设；
检测模块，包括：
第二电源；
第二电阻，第二电阻的一端与第二电源的输出端电连接；
金属弹片，金属弹片固定设置于第二连接部的壁面且与第二屏幕的显示面的夹角为0度，金属弹片与第二电阻的另一端电连接；
金属挡片，金属挡片固定设置于第一连接部的壁面且与第一屏幕的显示面的夹角为预设角度，金属挡片接地，预设角度大于0度且小于等于180度；其中，第一屏幕和第二屏幕相对转动的过程中，金属弹片和金属挡片可相接触；
在通过角度确定电路中的检测模块检测到目标事件的情况下，获取第一电阻的另一端与第二导电元件的另一端之间的分压值，包括：
在检测到金属弹片的信号状态由第三状态切换为第四状态的情况下，确定检测到目标事件，并获取第一电阻的另一端与第二导电元件的另一端之间的分压值。
可选地，根据第一电源的电压值、第一电阻的电阻值和所获取的分压值， 计算第一弧形段和第二弧形段的第二并联电阻值，包括：
在所获取的分压值位于预设角度对应的预设电压范围内的情况下，根据第一电源的电压值、第一电阻的电阻值和所获取的分压值，计算第一弧形段和第二弧形段的第二并联电阻值。
可选地，角度确定电路还包括ADC，ADC与第一电阻和第一导电元件的公共端电连接；
获取电路中的第一电阻的另一端与电路中的第二导电元件的另一端之间的分压值，包括：
获取ADC采样得到的分压值。
可以看出，本公开实施例中，折叠屏终端的折叠角度通过角度确定电路确定，角度确定电路的整体结构非常简单，角度确定电路中不包含复杂的机械结构，并且，角度确定电路中的各元件的性能并不容易受到温度因素的影响，因此，与相关技术相比，在确定折叠角度时，本公开实施例能够有效地避免温度因素对确定结果的影响，从而提高确定出的折叠角度的准确度。
参见图9，图中示出了实现本公开各个实施例的折叠屏终端900的硬件结构示意图。如图9所示，折叠屏终端900包括但不限于：射频单元901、网络模块902、音频输出单元903、输入单元904、传感器905、显示单元906、用户输入单元907、接口单元908、存储器909、处理器9010、以及电源9011等部件。本领域技术人员可以理解，图9中示出的折叠屏终端结构并不构成对折叠屏终端900的限定，折叠屏终端900可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，折叠屏终端900包括但不限于手机、平板电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。需要说明的是，折叠屏终端900包括通过转轴转动连接的第一屏幕和第二屏幕，转轴外固定套设有电阻圈，折叠屏终端900还包括角度确定电路，该电路包括：
第一电源；
第一电阻，第一电阻的一端与第一电源的输出端电连接；
第一导电元件，第一导电元件固定设置于第一屏幕，第一导电元件的一端与第一电阻的另一端电连接，第一导电元件的另一端滑动抵靠于电阻圈；
第二导电元件，第二导电元件固定设置于第二屏幕，第二导电元件的一端滑动抵靠于电阻圈，第二导电元件的另一端接地；其中，第一导电元件和第二导电元件在电阻圈上的滑动路径位于电阻圈周向的同一环形区域；
其中，处理器9010，用于：
获取角度确定电路中的第一电阻的另一端与角度确定电路中的第二导电元件的另一端之间的分压值；
根据角度确定电路中的第一电源的电压值、第一电阻的电阻值和所获取的分压值，确定具有角度确定电路的折叠屏终端中的第一屏幕和第二屏幕的夹角。
本公开实施例中，折叠屏终端900的折叠角度通过角度确定电路确定，角度确定电路的整体结构非常简单，角度确定电路中不包含复杂的机械结构，并且，角度确定电路中的各元件的性能并不容易受到温度因素的影响，因此，与相关技术相比，在确定折叠角度时，本公开实施例能够有效地避免温度因素对确定结果的影响，从而提高确定出的折叠角度的准确度。
可选地，第一导电元件和第二导电元件在电阻圈上的抵靠位置将环形区域划分为第一弧形段和第二弧形段，第一弧形段相对于第二弧形段远离第一屏幕的显示面；
处理器9010，具体用于：
根据角度确定电路中的第一电源的电压值、第一电阻的电阻值和所获取的分压值，计算第一弧形段和第二弧形段的第一并联电阻值；
根据环形区域的预设电阻值和第一并联电阻值，计算具有角度确定电路的折叠屏终端中的第一屏幕和第二屏幕的夹角。
可选地，角度确定电路还包括：
检测模块，检测模块用于检测目标事件，目标事件为第一屏幕和第二屏幕的夹角为预设角度的事件；
处理器9010，还用于：
在通过角度确定电路中的检测模块检测到目标事件的情况下，获取第一电阻的另一端与第二导电元件的另一端之间的分压值；
根据第一电源的电压值、第一电阻的电阻值和所获取的分压值，计算第 一弧形段和第二弧形段的第二并联电阻值；
根据预设角度和第二并联电阻值，计算环形区域的实时电阻值；
将环形区域的预设电阻值更新为计算得到的实时电阻值。
可选地，第一屏幕固定设置有第一连接部，第二屏幕固定设置有第二连接部，第二连接部和第一连接部相互套设；
检测模块，包括：
槽形光耦，槽形光耦固定设置于第二连接部的壁面且与第二屏幕的显示面的夹角为0度；
金属挡片，金属挡片固定设置于第一连接部的壁面且与第一屏幕的显示面的夹角为预设角度，预设角度大于0度且小于等于180度；其中，第一屏幕和第二屏幕相对转动的过程中，金属挡片可进出槽形光耦的凹槽；
处理器9010，具体用于：
在检测到槽形光耦的集电极的输出状态发生预设变化的情况下，确定检测到目标事件，并获取第一电阻的另一端与第二导电元件的另一端之间的分压值。
可选地，预设角度小于180度；
处理器9010，具体用于：
在检测到槽形光耦的集电极的输出状态由第一状态切换为第二状态后切换回第一状态的情况下，确定检测到目标事件；
或者，
预设角度等于180度；
处理器9010，具体用于：
在检测到槽形光耦的集电极的输出状态由第一状态切换为第二状态的情况下，确定检测到目标事件。
可选地，预设角度小于180度；
处理器9010，具体用于：
确定检测到目标事件，并获取输出状态切换为第二状态之前和之后的两个第一状态下，第一电阻的另一端与第二导电元件的另一端之间的两个分压值；
根据第一电源的电压值、第一电阻的电阻值以及两个分压值的平均值，计算第一弧形段和第二弧形段的第二并联电阻值。
可选地，第一屏幕固定设置有第一连接部，第二屏幕固定设置有第二连接部，第二连接部和第一连接部相互套设；
检测模块，包括：
第二电源；
第二电阻，第二电阻的一端与第二电源的输出端电连接；
金属弹片，金属弹片固定设置于第二连接部的壁面且与第二屏幕的显示面的夹角为0度，金属弹片与第二电阻的另一端电连接；
金属挡片，金属挡片固定设置于第一连接部的壁面且与第一屏幕的显示面的夹角为预设角度，金属挡片接地，预设角度大于0度且小于等于180度；其中，第一屏幕和第二屏幕相对转动的过程中，金属弹片和金属挡片可相接触；
处理器9010，具体用于：
在检测到金属弹片的信号状态由第三状态切换为第四状态的情况下，确定检测到目标事件，并获取第一电阻的另一端与第二导电元件的另一端之间的分压值。
可选地，处理器9010，具体用于：
在所获取的分压值位于预设角度对应的预设电压范围内的情况下，根据第一电源的电压值、第一电阻的电阻值和所获取的分压值，计算第一弧形段和第二弧形段的第二并联电阻值。
可选地，角度确定电路还包括ADC，ADC与第一电阻和第一导电元件的公共端电连接；
处理器9010，具体用于：
获取ADC采样得到的分压值。
应理解的是，本公开实施例中，射频单元901可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器9010处理；另外，将上行的数据发送给基站。通常，射频单元901包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器 等。此外，射频单元901还可以通过无线通信系统与网络和其他设备通信。
折叠屏终端通过网络模块902为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元903可以将射频单元901或网络模块902接收的或者在存储器909中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元903还可以提供与折叠屏终端900执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元903包括扬声器、蜂鸣器以及受话器等。
输入单元904用于接收音频或视频信号。输入单元904可以包括图形处理器(Graphics Processing Unit，GPU)9041和麦克风9042，图形处理器9041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元906上。经图形处理器9041处理后的图像帧可以存储在存储器909(或其它存储介质)中或者经由射频单元901或网络模块902进行发送。麦克风9042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元901发送到移动通信基站的格式输出。
折叠屏终端900还包括至少一种传感器905，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板9061的亮度，接近传感器可在折叠屏终端900移动到耳边时，关闭显示面板9061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别折叠屏终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器905还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元906用于显示由用户输入的信息或提供给用户的信息。显示单元906可包括显示面板9061，可以采用液晶显示器(Liquid Crystal Display, LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板9061。
用户输入单元907可用于接收输入的数字或字符信息，以及产生与折叠屏终端的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元907包括触控面板9071以及其他输入设备9072。触控面板9071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板9071上或在触控面板9071附近的操作)。触控面板9071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器9010，接收处理器9010发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板9071。除了触控面板9071，用户输入单元907还可以包括其他输入设备9072。具体地，其他输入设备9072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板9071可覆盖在显示面板9061上，当触控面板9071检测到在其上或附近的触摸操作后，传送给处理器9010以确定触摸事件的类型，随后处理器9010根据触摸事件的类型在显示面板9061上提供相应的视觉输出。虽然在图9中，触控面板9071与显示面板9061是作为两个独立的部件来实现折叠屏终端的输入和输出功能，但是在某些实施例中，可以将触控面板9071与显示面板9061集成而实现折叠屏终端的输入和输出功能，具体此处不做限定。
接口单元908为外部装置与折叠屏终端900连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元908可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到折叠屏终端900内的一个或多个元件或者可以用于在折叠屏终端900和外部装置之间传输数据。
存储器909可用于存储软件程序以及各种数据。存储器909可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器909可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器9010是折叠屏终端的控制中心，利用各种接口和线路连接整个折叠屏终端的各个部分，通过运行或执行存储在存储器909内的软件程序和/或模块，以及调用存储在存储器909内的数据，执行折叠屏终端的各种功能和处理数据，从而对折叠屏终端进行整体监控。处理器9010可包括一个或多个处理单元；可选的，处理器9010可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器9010中。
折叠屏终端900还可以包括给各个部件供电的电源9011(比如电池)，可选的，电源9011可以通过电源管理系统与处理器9010逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，折叠屏终端900包括一些未示出的功能模块，在此不再赘述。
可选地，本公开实施例还提供一种折叠屏终端，包括处理器9010，存储器909，存储在存储器909上并可在所述处理器9010上运行的计算机程序，该计算机程序被处理器9010执行时实现上述角度确定方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述角度确定方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意 在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (19)

  1. 一种角度确定电路，应用于折叠屏终端，所述折叠屏终端包括通过转轴转动连接的第一屏幕和第二屏幕，其中，所述转轴外固定套设有电阻圈，所述电路包括：
    第一电源；
    第一电阻，所述第一电阻的一端与所述第一电源的输出端电连接；
    第一导电元件，所述第一导电元件固定设置于所述第一屏幕，所述第一导电元件的一端与所述第一电阻的另一端电连接，所述第一导电元件的另一端滑动抵靠于所述电阻圈；
    第二导电元件，所述第二导电元件固定设置于所述第二屏幕，所述第二导电元件的一端滑动抵靠于所述电阻圈，所述第二导电元件的另一端接地；其中，所述第一导电元件和所述第二导电元件在所述电阻圈上的滑动路径位于所述电阻圈周向的同一环形区域；
    处理器，用于获取所述第一电阻的另一端与所述第二导电元件的另一端之间的分压值，并根据所述第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，确定所述第一屏幕和所述第二屏幕的夹角。
  2. 根据权利要求1所述的电路，其中，所述第一导电元件和所述第二导电元件在所述电阻圈上的抵靠位置将所述环形区域划分为第一弧形段和第二弧形段，所述第一弧形段相对于所述第二弧形段远离所述第一屏幕的显示面；
    所述处理器具体用于：
    根据所述第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，计算所述第一弧形段和所述第二弧形段的第一并联电阻值；
    根据所述环形区域的预设电阻值和所述第一并联电阻值，计算所述第一屏幕和所述第二屏幕的夹角。
  3. 根据权利要求2所述的电路，其中，所述电路还包括：
    检测模块，所述检测模块与所述处理器电连接，所述检测模块用于检测目标事件，所述目标事件为所述第一屏幕和所述第二屏幕的夹角为预设角度的事件；
    所述处理器还用于：
    在通过所述检测模块检测到所述目标事件的情况下，获取所述第一电阻的另一端与所述第二导电元件的另一端之间的分压值；
    根据所述第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，计算所述第一弧形段和所述第二弧形段的第二并联电阻值；
    根据所述预设角度和所述第二并联电阻值，计算所述环形区域的实时电阻值；
    将所述环形区域的预设电阻值更新为计算得到的实时电阻值。
  4. 根据权利要求3所述的电路，其中，所述第一屏幕固定设置有第一连接部，所述第二屏幕固定设置有第二连接部，所述第二连接部和所述第一连接部相互套设；
    所述检测模块，包括：
    槽形光耦，所述槽形光耦固定设置于所述第二连接部的壁面且与所述第二屏幕的显示面的夹角为0度；
    金属挡片，所述金属挡片固定设置于所述第一连接部的壁面且与所述第一屏幕的显示面的夹角为所述预设角度，所述预设角度大于0度且小于等于180度；其中，所述第一屏幕和所述第二屏幕相对转动的过程中，所述金属挡片可进出所述槽形光耦的凹槽；
    所述处理器与所述槽形光耦的集电极电连接，所述处理器具体用于：
    在检测到所述集电极的输出状态发生预设变化的情况下，确定检测到所述目标事件。
  5. 根据权利要求4所述的电路，其中，
    所述预设角度小于180度；
    所述处理器具体用于：
    在检测到所述集电极的输出状态由第一状态切换为第二状态后切换回第一状态的情况下，确定检测到所述目标事件；
    或者，
    所述预设角度等于180度；
    所述处理器具体用于：
    在检测到所述集电极的输出状态由第一状态切换为第二状态的情况下，确定检测到所述目标事件。
  6. 根据权利要求5所述的电路，其中，所述预设角度小于180度；
    所述处理器具体用于：
    在确定检测到所述目标事件的情况下，获取所述输出状态切换为第二状态之前和之后的两个第一状态下，所述第一电阻的另一端与所述第二导电元件的另一端之间的两个分压值；
    根据所述第一电源的电压值、所述第一电阻的电阻值以及所述两个分压值的平均值，计算所述第一弧形段和所述第二弧形段的第二并联电阻值。
  7. 根据权利要求3所述的电路，其中，所述第一屏幕固定设置有第一连接部，所述第二屏幕固定设置有第二连接部，所述第二连接部和所述第一连接部相互套设；
    所述检测模块，包括：
    第二电源；
    第二电阻，所述第二电阻的一端与所述第二电源的输出端电连接；
    金属弹片，所述金属弹片固定设置于所述第二连接部的壁面且与所述第二屏幕的显示面的夹角为0度，所述金属弹片与所述第二电阻的另一端电连接；
    金属挡片，所述金属挡片固定设置于所述第一连接部的壁面且与所述第一屏幕的显示面的夹角为所述预设角度，所述金属挡片接地，所述预设角度大于0度且小于等于180度；其中，所述第一屏幕和所述第二屏幕相对转动的过程中，所述金属弹片和所述金属挡片可相接触；
    所述处理器还与所述金属弹片电连接，所述处理器具体用于：
    在检测到所述金属弹片的信号状态由第三状态切换为第四状态的情况下，确定检测到所述目标事件。
  8. 根据权利要求7所述的电路，其中，所述处理器具体用于：
    在所获取的分压值位于所述预设角度对应的预设电压范围内的情况下，根据所述第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，计算所述第一弧形段和所述第二弧形段的第二并联电阻值。
  9. 根据权利要求1至8中任一项所述的电路，其中，所述电路还包括：
    模数转换器ADC，所述处理器通过所述ADC与所述第一电阻和所述第一导电元件的公共端电连接，所述处理器具体用于获取所述ADC采样得到的分压值。
  10. 一种折叠屏终端，包括如权利要求1至9中任一项所述的角度确定电路。
  11. 一种角度确定方法，应用于如权利要求1所述的角度确定电路，所述方法包括：
    获取所述电路中的第一电阻的另一端与所述电路中的第二导电元件的另一端之间的分压值；
    根据所述电路中的第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，确定具有所述电路的折叠屏终端中的第一屏幕和第二屏幕的夹角。
  12. 根据权利要求11所述的方法，其中，应用于如权利要求2所述的角度确定电路；
    所述根据所述电路中的第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，确定具有所述电路的折叠屏终端中的第一屏幕和第二屏幕的夹角，包括：
    根据所述电路中的第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，计算第一弧形段和第二弧形段的第一并联电阻值；
    根据环形区域的预设电阻值和所述第一并联电阻值，计算具有所述电路的折叠屏终端中的第一屏幕和第二屏幕的夹角。
  13. 根据权利要求12所述的方法，其中，应用于如权利要求3所述的角度确定电路；
    所述方法还包括：
    在通过所述电路中的检测模块检测到目标事件的情况下，获取所述第一电阻的另一端与所述第二导电元件的另一端之间的分压值；其中，所述目标事件为所述第一屏幕和所述第二屏幕的夹角为预设角度的事件；
    根据所述第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，计算所述第一弧形段和所述第二弧形段的第二并联电阻值；
    根据所述预设角度和所述第二并联电阻值，计算所述环形区域的实时电阻值；
    将所述环形区域的预设电阻值更新为计算得到的实时电阻值。
  14. 根据权利要求13所述的方法，其中，应用于如权利要求4所述的角度确定电路；
    所述在通过所述电路中的检测模块检测到目标事件的情况下，获取所述第一电阻的另一端与所述第二导电元件的另一端之间的分压值，包括：
    在检测到槽形光耦的集电极的输出状态发生预设变化的情况下，确定检测到所述目标事件，并获取所述第一电阻的另一端与所述第二导电元件的另一端之间的分压值。
  15. 根据权利要求14所述的方法，其中，
    所述预设角度小于180度；
    所述在检测到槽形光耦的集电极的输出状态发生预设变化的情况下，确定检测到所述目标事件，包括：
    在检测到槽形光耦的集电极的输出状态由第一状态切换为第二状态后切换回第一状态的情况下，确定检测到所述目标事件；
    或者，
    所述预设角度等于180度；
    所述在检测到槽形光耦的集电极的输出状态发生预设变化的情况下，确定检测到所述目标事件，包括：
    在检测到槽形光耦的集电极的输出状态由第一状态切换为第二状态的情况下，确定检测到所述目标事件。
  16. 根据权利要求15所述的方法，其中，所述预设角度小于180度；
    所述确定检测到所述目标事件，并获取所述第一电阻的另一端与所述第二导电元件的另一端之间的分压值，包括：
    确定检测到所述目标事件，并获取所述输出状态切换为第二状态之前和之后的两个第一状态下，所述第一电阻的另一端与所述第二导电元件的另一端之间的两个分压值；
    所述根据所述第一电源的电压值、所述第一电阻的电阻值和所获取的分 压值，计算所述第一弧形段和所述第二弧形段的第二并联电阻值，包括：
    根据所述第一电源的电压值、所述第一电阻的电阻值以及所述两个分压值的平均值，计算所述第一弧形段和所述第二弧形段的第二并联电阻值。
  17. 根据权利要求13所述的方法，其中，应用于如权利要求7所述的角度确定电路；
    所述在通过所述电路中的检测模块检测到目标事件的情况下，获取所述第一电阻的另一端与所述第二导电元件的另一端之间的分压值，包括：
    在检测到金属弹片的信号状态由第三状态切换为第四状态的情况下，确定检测到所述目标事件，并获取所述第一电阻的另一端与所述第二导电元件的另一端之间的分压值。
  18. 根据权利要求17所述的方法，其中，所述根据所述第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，计算所述第一弧形段和所述第二弧形段的第二并联电阻值，包括：
    在所获取的分压值位于所述预设角度对应的预设电压范围内的情况下，根据所述第一电源的电压值、所述第一电阻的电阻值和所获取的分压值，计算所述第一弧形段和所述第二弧形段的第二并联电阻值。
  19. 根据权利要求11至18中任一项所述的方法，其中，应用于如权利要求9所述的角度确定电路；
    所述获取所述电路中的第一电阻的另一端与所述电路中的第二导电元件的另一端之间的分压值，包括：
    获取模数转换器ADC采样得到的分压值。
PCT/CN2019/099924 2018-09-20 2019-08-09 角度确定电路、方法及折叠屏终端 WO2020057288A1 (zh)

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