CN110753309B - Electronic equipment positioning system, method and device - Google Patents
Electronic equipment positioning system, method and device Download PDFInfo
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- CN110753309B CN110753309B CN201911039040.6A CN201911039040A CN110753309B CN 110753309 B CN110753309 B CN 110753309B CN 201911039040 A CN201911039040 A CN 201911039040A CN 110753309 B CN110753309 B CN 110753309B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
Abstract
The embodiment of the invention discloses an electronic equipment positioning system which comprises two pieces of electronic equipment; the electronic equipment receiving the positioning trigger instruction is used as positioning equipment; and the electronic equipment which does not receive the positioning trigger instruction is used as the equipment to be searched. When the positioning equipment acquires a positioning trigger instruction, starting the double antennas; and sends a communication instruction to the device to be searched when the connection with the device is not disconnected. And when the equipment to be searched does not receive the positioning trigger instruction or the communication instruction, the single antenna is started to broadcast the radio frequency signal outwards. The positioning equipment periodically switches the double antennas to receive radio frequency signals; acquiring the phase difference of the double antennas through sampling; and calculating a deflection angle according to the phase difference, the distance value between the double antennas and the radio frequency wavelength so as to facilitate a user to quickly find the lost electronic equipment according to the deflection angle and realize accurate positioning of the electronic equipment in a short-distance range. The embodiment of the invention also discloses a method and a device for positioning the electronic equipment, and the effects are as described above.
Description
Technical Field
The present invention relates to the field of device positioning technologies, and in particular, to a system, a method, and an apparatus for positioning an electronic device.
Background
Along with the improvement of the intelligent level of electronic equipment, besides the improvement of the performance of a plurality of electronic equipment, the appearance of the electronic equipment is more exquisite and beautiful, the size of the electronic equipment is smaller and smaller, and the electronic equipment is more convenient for a user to carry and use.
Taking a bluetooth headset as an example, a wireless bluetooth headset has become a mainstream and a hot spot for bluetooth headset development, but because the two ears of the wireless bluetooth headset are independent, the wireless bluetooth headset is easy to lose and becomes a pain point of a product. There are several methods for outdoor positioning of wireless bluetooth headsets, such as GPS positioning, but the existing positioning method is generally a few meters of accuracy, for example, positioning in a building, but the specific orientation in the building is useless. There is no effective method for positioning within a short indoor range.
Therefore, how to achieve accurate positioning of a close range of an electronic device is a problem to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the invention aims to provide a system, a method and a device for positioning electronic equipment, which can realize accurate positioning of the electronic equipment in a short-distance range.
In order to solve the above technical problem, an embodiment of the present invention provides an electronic device positioning system, including two electronic devices; the electronic equipment receiving the positioning trigger instruction is used as positioning equipment; the electronic equipment which does not receive the positioning trigger instruction is used as equipment to be searched;
the positioning device is used for judging whether the connection with the device to be searched is disconnected; if yes, starting the double antennas when a positioning trigger instruction is obtained; if not, when a positioning trigger instruction is obtained, starting the double antennas, and sending a communication instruction to the equipment to be searched;
the device to be searched is used for broadcasting radio frequency signals outwards through a single antenna if a positioning trigger instruction is not received within a preset time after the device to be searched is detected to be disconnected from the positioning device; or when a communication instruction sent by the positioning equipment is received, broadcasting radio frequency signals outwards through a single antenna;
the positioning equipment is also used for periodically switching the double antennas to receive the radio frequency signals; sampling radio frequency signals received by the double antennas to acquire phase difference of the double antennas; and calculating the deflection angle of the equipment to be searched and the positioning equipment according to the phase difference, the distance value between the double antennas and the radio frequency wavelength, thereby determining the position direction of the equipment to be searched.
Optionally, a voice module is disposed on each of the two electronic devices.
Optionally, the two electronic devices are both provided with a dual antenna and a bluetooth module; in an initial state, the two electronic devices both start a single antenna, and when any one electronic device obtains a positioning trigger instruction, the two antennas are started.
Optionally, the positioning device is specifically configured to calculate a deflection angle between the device to be searched and the positioning device according to the following formula;
where λ represents a radio frequency wavelength, Φ represents a phase difference of the dual antennas, and d represents a distance value between the dual antennas.
Optionally, a key or a touch module is disposed on each of the two electronic devices, and is used for triggering the electronic devices to turn on or off the dual antennas.
Optionally, the positioning device is a left earphone provided with a bluetooth module, and the device to be searched is a right earphone matched with the left earphone and provided with a bluetooth module; or the positioning device is a right earphone provided with a Bluetooth module, and the device to be searched is a left earphone which is matched with the right earphone and is provided with the Bluetooth module.
Optionally, the positioning device is an earphone provided with a bluetooth module, and the device to be searched is a charging box provided with a bluetooth module.
Optionally, the positioning device is a mobile phone, a watch, a bracelet or a ring provided with a bluetooth module, and the device to be searched is an earphone or a charging box provided with a bluetooth module.
The embodiment of the invention also provides an electronic equipment positioning method, which is suitable for electronic equipment provided with double antennas, and the method comprises the following steps:
judging whether the connection with the target electronic equipment is disconnected;
if yes, starting the double antennas when a positioning trigger instruction is obtained;
if not, when a positioning trigger instruction is obtained, starting the dual antennas, and sending a communication instruction to the target electronic equipment;
periodically switching the dual antennas to receive radio frequency signals broadcast by the target electronic equipment; sampling radio frequency signals received by the double antennas to acquire phase difference of the double antennas; and calculating the deflection angle between the target electronic equipment and the electronic equipment according to the phase difference, the distance value between the double antennas and the radio frequency wavelength, thereby determining the position direction of the target electronic equipment.
The embodiment of the invention also provides an electronic equipment positioning device which is suitable for the electronic equipment provided with the double antennas, and the device comprises a judging unit, an opening unit, a sending unit, a switching unit, a sampling unit and a positioning unit;
the judging unit is used for judging whether the connection with the target electronic equipment is disconnected;
the starting unit is used for starting the dual antennas if a positioning trigger instruction is acquired when the electronic equipment is disconnected from the target electronic equipment; or when the connection between the electronic equipment and the target electronic equipment is not disconnected, if a positioning trigger instruction is acquired, starting the dual antennas, and triggering the sending unit to send a communication instruction to the target electronic equipment;
the switching unit is used for periodically switching the dual antenna to receive the radio frequency signal broadcast by the target electronic equipment;
the sampling unit is used for sampling the radio frequency signals received by the double antennas so as to obtain the phase difference of the double antennas;
and the positioning unit is used for calculating a deflection angle between the target electronic equipment and the electronic equipment according to the phase difference, the distance value between the double antennas and the radio frequency wavelength, so as to determine the position direction of the target electronic equipment.
According to the technical scheme, the electronic equipment positioning system comprises two pieces of electronic equipment; the electronic equipment receiving the positioning trigger instruction is used as positioning equipment; and the electronic equipment which does not receive the positioning trigger instruction is used as the equipment to be searched. The positioning device is used for judging whether the connection with the device to be searched is disconnected; if yes, starting the double antennas when a positioning trigger instruction is obtained; correspondingly, when the device to be searched detects that the connection with the positioning device is disconnected, if the positioning trigger instruction is not received within the preset time, the single antenna is started, and the radio frequency signal is broadcasted outwards. When the connection between the positioning device and the device to be searched is not disconnected, the positioning device starts the dual antennas and sends a communication instruction to the device to be searched after acquiring the positioning trigger instruction. Correspondingly, after receiving the communication instruction sent by the positioning device, the device to be searched broadcasts the radio frequency signal outwards through the single antenna. The positioning equipment periodically switches the double antennas to receive radio frequency signals; sampling radio frequency signals received by the double antennas to obtain phase difference of the double antennas; and calculating the deflection angle of the equipment to be searched and the positioning equipment according to the phase difference, the distance value between the double antennas and the radio frequency wavelength, thereby determining the position direction of the equipment to be searched. The two electronic devices are in communication connection, when any one electronic device is lost, the lost electronic device can broadcast radio frequency signals outwards through the single antenna, the electronic device which is not lost can analyze the radio frequency signals received by the double antennas, the deflection angle of the lost electronic device relative to the electronic device which is not lost can be determined, a user can quickly find the lost electronic device according to the deflection angle, accurate positioning of the electronic device in a short-distance range is achieved, and the defect that the existing various outdoor anti-loss technologies cannot perform indoor short-distance range positioning is overcome.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a schematic structural diagram of an electronic device positioning system according to an embodiment of the present invention;
fig. 2 is a schematic format diagram of a switching time for periodically switching dual antennas by a positioning device according to an embodiment of the present invention;
fig. 3 is a schematic view of an angle formed between a radio frequency signal broadcast by a device to be searched and a positioning device according to an embodiment of the present invention;
fig. 4 is a flowchart of an electronic device positioning method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a positioning apparatus for electronic equipment according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Next, a positioning system for electronic devices according to an embodiment of the present invention is described in detail. Fig. 1 is a schematic structural diagram of an electronic device positioning system according to an embodiment of the present invention, where the electronic device positioning system includes two electronic devices. When any one electronic device is lost, another electronic device can be used as the positioning device 1 to locate and search the lost electronic device.
Since the electronic device cannot determine whether itself is in a lost state or an unreleased state, a user-triggered manner is required to determine the state of the electronic device.
When the electronic equipment is lost, the user can not operate the electronic equipment. In the embodiment of the present invention, the electronic device that receives the positioning trigger instruction may be used as the positioning device 1; the electronic device which does not receive the positioning trigger instruction is used as the device to be searched 2.
In practical application, it cannot be determined which electronic device is lost, so that a physical key or a touch module can be set on both the two electronic devices, and a user can trigger the electronic devices to turn on or turn off the positioning mode through the physical key or the touch module. The electronic device in the positioning mode will switch on the dual antenna 11.
Taking a physical key as an example, a physical key may be set on the electronic device, and in an initial state, the electronic device may perform normal communication with other electronic devices through the single antenna. When the physical key is pressed by the user, the electronic device equivalently receives the positioning trigger instruction, and at the moment, the electronic device enters a positioning mode and turns on the dual antenna 11. The electronic equipment is used as the positioning equipment 1, and the dual antenna 11 is periodically switched to receive radio frequency signals. When the physical key is pressed again by the user, the electronic device exits the locate mode, at which point the electronic device reverts to an initial state of normal communication with other electronic devices via the single antenna. In addition, two physical keys may be arranged on the electronic device, one physical key is used for triggering the electronic device to enter the positioning mode, and the other physical key is used for triggering the electronic device to exit the positioning mode.
Taking the touch module as an example, the touch module may be a touch sensor. The dual antenna 11 of the electronic device is triggered to be turned on or off by sensing the pressing time of the user. For example, a user may click the touch module for a short time to trigger the electronic device to enter a positioning mode, i.e., turn on the dual antennas; the touch module is pressed for a long time, the electronic equipment is triggered to exit the positioning mode, namely, the double antennas are closed, and at the moment, the electronic equipment can be restored to the initial state of normal communication with other electronic equipment through the single antenna.
In practical applications, the device 2 to be searched and the positioning device 1 may always have a communication connection or may have a communication connection that is disconnected.
When the connection between the device 2 to be searched and the positioning device 1 is not disconnected, if the user needs to position the device 2 to be searched at this time, the user can trigger the electronic device which is not lost to enter a positioning mode through a physical key or a touch module, and the electronic device which is not lost at this time is used as the positioning device 1 to start the dual antenna. Because the connection is not disconnected, the positioning device 1 can send a communication instruction to the device to be searched 2, and accordingly, when the device to be searched 2 receives the communication instruction, the radio frequency signal can be broadcast outwards through the single antenna 21.
When the connection between the device 2 to be searched and the positioning device 1 is disconnected, if the user needs to position the device 2 to be searched at this time, the user can trigger the electronic device which is not lost to enter a positioning mode through a physical key or a touch module, and the electronic device which is not lost at this time is used as the positioning device 1 to start the dual antenna. Since the connection is disconnected, the device 2 to be searched cannot receive any instruction information, and therefore, a mechanism for automatically broadcasting the radio frequency signal to the outside can be provided on the device 2 to be searched. Specifically, when the device 2 to be searched detects that the connection with the positioning device 1 is disconnected, timing may be started, and when the preset time is reached and no instruction information is received, the radio frequency signal may be broadcast to the outside through the single antenna 21.
After the positioning device 1 turns on the dual antenna 11, it can receive the rf signal broadcast by the device to be searched through the two antennas. In order to avoid interference, the two antennas can be controlled in a time-sharing manner to acquire radio frequency signals.
In practical applications, a radio frequency switch may be provided on the positioning device 1 to control the switching of the dual antenna 11. The positioning apparatus 1 may periodically switch the dual antennas in the format of the switching time as shown in fig. 2. The time slot of the switch switching and sampling can be set to 1 microsecond or 2 microseconds.
The positioning device 1 performs orthogonal sampling on the radio frequency signals received by the dual antennas 11, so as to obtain the phase difference of the dual antennas 11; the positioning device 1 can calculate the distance difference between the rf signal and the two antennas according to the rf wavelength and the phase difference between the rf signal and the two antennas. Because the distance between the two antennas 1 on the positioning device 1 is fixed, the distance difference between the two antennas is reached by combining the radio frequency signal, so that the included angle between the device 2 to be searched and the positioning device 1 can be calculated.
In a specific implementation, the positioning device 1 may calculate a deviation angle between the device 2 to be searched and the positioning device 1 according to the following formula;
where λ represents the radio frequency wavelength, Φ represents the phase difference of the dual antennas 11, and d represents the distance value between the dual antennas 11.
FIG. 3 is a schematic diagram showing an angle formed between an RF signal broadcast by the device 2 to be searched and the positioning device 1, wherein d in FIG. 3 represents a distance value between the dual antennas 11, and r is a tableIndicating the difference in distance of the RF signal from the two antennas, wherein
In practical application, the horizontal line of the dual antenna 11, i.e., the vertical line in fig. 3, may be taken as a dividing line for positive and negative values of the deflection angle, the deflection angle on the left side of the horizontal line takes a negative value, and the deflection angle on the right side of the horizontal line takes a positive value. In fig. 3, the value of θ is a negative value, which indicates that the device 2 to be searched is in the left area of the positioning device.
It should be noted that, in the embodiment of the present invention, two antennas are respectively disposed on two electronic devices, and in an initial state, the two electronic devices can both realize normal communication with other electronic devices through a single antenna. When an electronic device is lost, the electronic device that is not lost is the positioning device 1, and the lost electronic device is the device to be searched 2. During the searching process of the electronic device, the positioning device 1 will turn on the dual antennas. The device 2 to be searched only needs to broadcast the rf signal outwards, and at this time, the device 2 to be searched can complete the broadcast of the rf signal through the single antenna 21, and the single antenna on the left side broadcasts the rf signal outwards in fig. 1 as an example.
In the embodiment of the invention, the voice modules can be arranged on the two electronic devices. After the deviation angle is calculated, the positioning device 1 can play the deviation angle between the device to be searched 2 and the positioning device 1 through the voice module, so that the user can determine the region direction of the device to be searched 2 according to the played deviation angle, and the device to be searched can be quickly found.
When the connection between the two electronic devices is disconnected, it is possible that a certain electronic device is lost, which results in disconnection, so that the user can find the loss of the electronic device in time, and when the electronic device detects the disconnection between the electronic devices connected with the electronic device in specific communication, the electronic device can play a positioning prompt tone through the voice module, so that the user is reminded to trigger the electronic device which is not lost to open the double antennas in time, and the lost electronic device is searched in a positioning manner.
Wireless communication between two electronic devices is possible without losing the electronic devices. In a specific implementation, the bluetooth modules may be disposed on both the two electronic devices, thereby implementing wireless communication.
Because it cannot be determined which electronic device is lost in practical application, in order to ensure that both electronic devices can implement positioning and searching, two antennas need to be arranged on both electronic devices. In an initial state, the two electronic devices both turn on the single antenna 21, and when any one electronic device obtains a positioning trigger instruction, the dual antenna 11 is turned on.
The electronic equipment positioning system provided by the embodiment of the invention is suitable for positioning and searching indoor short-distance electronic equipment. In combination with practical application requirements, the two electronic devices may be portable intelligent electronic devices. The positioning device 1 may be an electronic device that is not easy to lose and is carried by a user, for example, the positioning device 1 may be a mobile phone, a watch, a bracelet or a ring, etc. provided with a bluetooth module. The device to be searched 2 may be an electronic device that a user easily forgets to place or is easily lost, for example, the device to be searched 2 may be an earphone or a charging box provided with a bluetooth module.
For example, the positioning device 1 and the device to be searched 2 may be two wireless headsets provided with bluetooth modules, including a left headset and a right headset, where when the left headset is not lost and the right headset is lost, the left headset is the positioning device 1, and the right headset is the device to be searched 2; when the right earphone is not lost and the left earphone is lost, the right earphone is the positioning device 1, and the left earphone is the device to be searched 2. The lost earphone can broadcast radio frequency signals outwards through the single antenna, the missed earphone receives the radio frequency signals through the double antennas, and the deviation angle between the lost earphone and the missed earphone is calculated according to the radio frequency signals so as to determine the area direction of the lost earphone.
The earphone that is provided with bluetooth module and the box that charges that is provided with bluetooth module are taken as the example, and the user need rely on the box that charges to the earphone, compare in the earphone, because the frequency of use of the box that charges is lower, often forget after the user uses and put which position indoor with the box that charges. When the charging box is lost, the headset can be used as the positioning device 1, and the charging box is the device to be searched 2. The box that charges can be through the outside radio frequency signal of broadcasting of single antenna, and the earphone passes through dual antenna receiving radio frequency signal, calculates the partial angle of the box that charges and bracelet according to radio frequency signal to determine the regional direction at the box that charges place.
It should be noted that, in the above examples, two electronic devices are taken as examples, one electronic device is taken as the positioning device 1, and the other electronic device is taken as the device to be searched 2. In practical applications, the number of the devices 2 to be searched may be multiple, and the radio frequency signals broadcast by the multiple devices 2 to be searched may adopt different frequency bands, so that the positioning device 1 can distinguish the multiple devices 2 to be searched.
According to the technical scheme, the electronic equipment positioning system comprises two pieces of electronic equipment; the electronic equipment receiving the positioning trigger instruction is used as positioning equipment; and the electronic equipment which does not receive the positioning trigger instruction is used as the equipment to be searched. The positioning device is used for judging whether the connection with the device to be searched is disconnected; if yes, starting the double antennas when a positioning trigger instruction is obtained; correspondingly, when the device to be searched detects that the connection with the positioning device is disconnected, if the positioning trigger instruction is not received within the preset time, the single antenna is started, and the radio frequency signal is broadcasted outwards. When the connection between the positioning device and the device to be searched is not disconnected, the positioning device starts the dual antennas and sends a communication instruction to the device to be searched after acquiring the positioning trigger instruction. Correspondingly, after receiving the communication instruction sent by the positioning device, the device to be searched broadcasts the radio frequency signal outwards through the single antenna. The positioning equipment periodically switches the double antennas to receive radio frequency signals; sampling radio frequency signals received by the double antennas to obtain phase difference of the double antennas; and calculating the deflection angle of the equipment to be searched and the positioning equipment according to the phase difference, the distance value between the double antennas and the radio frequency wavelength, thereby determining the position direction of the equipment to be searched. The two electronic devices are in communication connection, when any one electronic device is lost, the lost electronic device can broadcast radio frequency signals outwards through the single antenna, the electronic device which is not lost can analyze the radio frequency signals received by the double antennas, the deflection angle of the lost electronic device relative to the electronic device which is not lost can be determined, a user can quickly find the lost electronic device according to the deflection angle, accurate positioning of the electronic device in a short-distance range is achieved, and the defect that the existing various outdoor anti-loss technologies cannot perform indoor short-distance range positioning is overcome.
Fig. 4 is a flowchart of a positioning method for an electronic device according to an embodiment of the present invention, which is suitable for an electronic device with dual antennas, and the method includes:
s401: and judging whether the connection with the target electronic equipment is disconnected.
The target electronic device refers to an electronic device having a communication connection with an electronic device provided with a dual antenna. In the initial state, the electronic device can normally communicate with the target electronic device through the single antenna.
In practical application, a physical button or a touch module can be arranged on the electronic device, and a user can trigger the electronic device to turn on or turn off the positioning mode through the physical button or the touch module. The electronic device will turn on the dual antenna in the locate mode.
When the target electronic device is disconnected from the electronic device, if the user needs to locate the target electronic device, the user may trigger the electronic device that is not lost to enter a location mode through a physical key or a touch module, and the electronic device that is not lost at this time is used as a location device to perform the operation of S402.
When the connection between the target electronic device and the electronic device is not disconnected, if the user needs to locate the target electronic device at this time, the user may trigger the electronic device that is not lost to enter a location mode through a physical key or a touch module, and the electronic device that is not lost at this time is used as a location device to perform the operation of S403.
S402: and when a positioning trigger instruction is obtained, the double antennas are started.
S403: and when the positioning trigger instruction is obtained, starting the double antennas and sending a communication instruction to the target electronic equipment.
When the electronic equipment sends a communication instruction to the target electronic equipment, correspondingly, when the target electronic equipment receives the communication instruction, the radio-frequency signal can be broadcast outwards through the single antenna.
S404: and periodically switching the double antennas to receive the radio frequency signals broadcast by the target electronic equipment.
After the electronic equipment opens the double antennas, the radio frequency signals broadcast by the target electronic equipment can be received through the two antennas. In order to avoid interference, the two antennas can be controlled in a time-sharing manner to acquire radio frequency signals.
The target electronic device may broadcast the radio frequency signal through the single antenna if the command information is not received within a preset time after the communication connection with the electronic device is disconnected through a mechanism set by the target electronic device. The target electronic device may also broadcast the radio frequency signal to the outside through the single antenna when receiving a communication instruction sent by the electronic device when the communication connection with the electronic device is not disconnected.
A physical key or a touch module can be arranged on the electronic equipment, and when the lost electronic equipment needs to be located and searched, a user can trigger the electronic equipment to open the double antennas through the physical key or the touch module.
After the electronic equipment opens the double antennas, the radio frequency signals broadcast by the target electronic equipment can be received through the two antennas. In order to avoid interference, the electronic device can periodically switch the two antennas to acquire radio frequency signals, namely, the radio frequency signals are acquired through one antenna, when the set signal acquisition time is reached, the other antenna is switched to acquire the radio frequency signals, and the radio frequency signals are sequentially circulated, so that the periodic switching of the two antennas is realized.
S405: and sampling the radio frequency signals received by the double antennas to acquire the phase difference of the double antennas.
The electronic equipment performs orthogonal sampling on the radio frequency signals received by the double antennas, and can acquire the phase difference of the double antennas.
S406: and calculating the deflection angle between the target electronic equipment and the electronic equipment according to the phase difference, the distance value between the double antennas and the radio frequency wavelength, thereby determining the position direction of the target electronic equipment.
The electronic device can calculate the distance difference of the radio frequency signal reaching the two antennas according to the radio frequency wavelength and the phase difference of the radio frequency signal reaching the two antennas. Because the distance between the two antennas on the electronic equipment is fixed, the distance difference between the two antennas is achieved by combining the radio-frequency signals, and the included angle between the target electronic equipment and the electronic equipment can be calculated.
In a specific implementation, the electronic device may calculate a deflection angle between the target electronic device and the electronic device according to the following formula;
where λ represents the radio frequency wavelength, Φ represents the phase difference of the dual antennas 11, and d represents the distance value between the dual antennas 11.
The description of the features in the embodiment corresponding to fig. 4 may refer to the related description of the embodiment corresponding to fig. 1, and is not repeated here.
According to the technical scheme, the electronic equipment provided with the double antennas can judge whether the connection between the target electronic equipment in communication connection with the electronic equipment is disconnected; if yes, the double antennas are started when the positioning trigger instruction is obtained. When the connection between the electronic equipment and the target electronic equipment is not disconnected, the electronic equipment starts the double antennas and sends a communication instruction to the target electronic equipment after acquiring the positioning trigger instruction. The electronic equipment periodically switches the double antennas to receive the radio frequency signals broadcast by the target electronic equipment; sampling radio frequency signals received by the double antennas to obtain phase difference of the double antennas; and calculating the deflection angle between the target electronic equipment and the electronic equipment according to the phase difference, the distance value between the double antennas and the radio frequency wavelength, thereby determining the position direction of the target electronic equipment. The two electronic devices are in communication connection, when any one electronic device is lost, the lost electronic device can broadcast radio frequency signals outwards through the single antenna, the electronic device which is not lost can analyze the radio frequency signals received by the double antennas, the deflection angle of the lost electronic device relative to the electronic device which is not lost can be determined, a user can quickly find the lost electronic device according to the deflection angle, accurate positioning of the electronic device in a short-distance range is achieved, and the defect that the existing various outdoor anti-loss technologies cannot perform indoor short-distance range positioning is overcome.
Fig. 5 is a schematic structural diagram of an electronic device positioning apparatus according to an embodiment of the present invention, which is suitable for an electronic device with dual antennas, and the apparatus includes a determining unit 51, an opening unit 52, a sending unit 53, a switching unit 54, a sampling unit 55, and a positioning unit 56;
a judgment unit 51 for judging whether the connection with the target electronic apparatus is disconnected;
the starting unit 52 is configured to, when the electronic device is disconnected from the target electronic device, start the dual antennas if the positioning trigger instruction is obtained; or when the connection between the electronic device and the target electronic device is not disconnected, if the positioning trigger instruction is acquired, the dual antennas are turned on, and the sending unit 53 is triggered to send a communication instruction to the target electronic device;
a switching unit 54, configured to periodically switch the dual antennas to receive the radio frequency signal broadcast by the target electronic device;
a sampling unit 55, configured to sample a radio frequency signal received by the dual antennas to obtain a phase difference between the dual antennas;
and the positioning unit 56 is configured to calculate a deflection angle between the target electronic device and the electronic device according to the phase difference, the distance value between the two antennas, and the radio frequency wavelength, so as to determine a position direction of the target electronic device.
The description of the features in the embodiment corresponding to fig. 5 may refer to the related description of the embodiment corresponding to fig. 1, and is not repeated here.
According to the technical scheme, the electronic equipment provided with the double antennas can judge whether the connection between the target electronic equipment in communication connection with the electronic equipment is disconnected; if yes, the double antennas are started when the positioning trigger instruction is obtained. When the connection between the electronic equipment and the target electronic equipment is not disconnected, the electronic equipment starts the double antennas and sends a communication instruction to the target electronic equipment after acquiring the positioning trigger instruction. The electronic equipment periodically switches the double antennas to receive the radio frequency signals broadcast by the target electronic equipment; sampling radio frequency signals received by the double antennas to obtain phase difference of the double antennas; and calculating the deflection angle between the target electronic equipment and the electronic equipment according to the phase difference, the distance value between the double antennas and the radio frequency wavelength, thereby determining the position direction of the target electronic equipment. The two electronic devices are in communication connection, when any one electronic device is lost, the lost electronic device can broadcast radio frequency signals outwards through the single antenna, the electronic device which is not lost can analyze the radio frequency signals received by the double antennas, the deflection angle of the lost electronic device relative to the electronic device which is not lost can be determined, a user can quickly find the lost electronic device according to the deflection angle, accurate positioning of the electronic device in a short-distance range is achieved, and the defect that the existing various outdoor anti-loss technologies cannot perform indoor short-distance range positioning is overcome.
The electronic device positioning system, method and apparatus provided by the embodiments of the present invention are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
Claims (9)
1. An electronic device positioning system, comprising two electronic devices; the electronic equipment receiving the positioning trigger instruction is used as positioning equipment; the electronic equipment which does not receive the positioning trigger instruction is used as equipment to be searched; the two electronic devices are both provided with double antennas and Bluetooth modules; in an initial state, the two electronic devices both start a single antenna, and when any one electronic device obtains a positioning trigger instruction, the two antennas are started;
the positioning device is used for judging whether the connection with the device to be searched is disconnected; if yes, starting the double antennas when a positioning trigger instruction is obtained; if not, when a positioning trigger instruction is obtained, starting the double antennas, and sending a communication instruction to the equipment to be searched;
the device to be searched is used for broadcasting radio frequency signals outwards through a single antenna if a positioning trigger instruction is not received within a preset time after the device to be searched is detected to be disconnected from the positioning device; or when a communication instruction sent by the positioning equipment is received, broadcasting radio frequency signals outwards through a single antenna;
the positioning equipment is also used for periodically switching the double antennas to receive the radio frequency signals; sampling radio frequency signals received by the double antennas to acquire phase difference of the double antennas; and calculating the deflection angle of the equipment to be searched and the positioning equipment according to the phase difference, the distance value between the double antennas and the radio frequency wavelength, thereby determining the position direction of the equipment to be searched.
2. The system of claim 1, wherein a voice module is disposed on both of the electronic devices.
3. The system according to claim 1, wherein the positioning device is specifically configured to calculate a deflection angle between the device to be searched and the positioning device according to the following formula;
where λ represents a radio frequency wavelength, Φ represents a phase difference of the dual antennas, and d represents a distance value between the dual antennas.
4. The system according to any one of claims 1 to 3, wherein a button or touch module is provided on each of the two electronic devices for triggering the electronic devices to turn on or off the dual antenna.
5. The system according to claim 1, wherein the positioning device is a left earphone provided with a Bluetooth module, and the device to be searched is a right earphone matched with the left earphone and provided with a Bluetooth module; or the positioning device is a right earphone provided with a Bluetooth module, and the device to be searched is a left earphone which is matched with the right earphone and is provided with the Bluetooth module.
6. The system of claim 1, wherein the positioning device is a headset provided with a bluetooth module, and the device to be searched is a charging box provided with a bluetooth module.
7. The system according to claim 1, wherein the positioning device is a mobile phone, a watch, a bracelet or a ring provided with a bluetooth module, and the device to be searched is an earphone or a charging box provided with a bluetooth module.
8. The electronic equipment positioning method is characterized by being suitable for electronic equipment with double antennas, wherein the two pieces of electronic equipment are both provided with the double antennas and a Bluetooth module; in an initial state, both the two electronic devices open a single antenna, and when any one electronic device obtains a positioning trigger instruction, the two antennas are opened, and the method includes:
judging whether the connection with the target electronic equipment is disconnected;
if yes, starting the double antennas when a positioning trigger instruction is obtained;
if not, when a positioning trigger instruction is obtained, starting the dual antennas, and sending a communication instruction to the target electronic equipment;
periodically switching the dual antennas to receive radio frequency signals broadcast by the target electronic equipment; the radio frequency signal is a radio frequency signal which is broadcast outwards through a single antenna if the target electronic equipment does not receive the instruction information within the preset time after detecting that the communication connection with the electronic equipment is disconnected; or when the communication connection with the electronic equipment is not disconnected and a communication instruction sent by the electronic equipment is received, the radio frequency signal is broadcast outwards through the single antenna;
sampling radio frequency signals received by the double antennas to acquire phase differences of the double antennas; and calculating the deflection angle between the target electronic equipment and the electronic equipment according to the phase difference, the distance value between the double antennas and the radio frequency wavelength, thereby determining the position direction of the target electronic equipment.
9. The electronic equipment positioning device is characterized by being suitable for electronic equipment with double antennas, wherein the two pieces of electronic equipment are both provided with the double antennas and a Bluetooth module; in an initial state, the two electronic devices both start a single antenna, and when any one electronic device acquires a positioning trigger instruction, the two antennas are started, wherein the device comprises a judging unit, a starting unit, a sending unit, a switching unit, a sampling unit and a positioning unit;
the judging unit is used for judging whether the connection with the target electronic equipment is disconnected;
the starting unit is used for starting the dual antennas if a positioning trigger instruction is acquired when the electronic equipment is disconnected from the target electronic equipment; or when the connection between the electronic equipment and the target electronic equipment is not disconnected, if a positioning trigger instruction is acquired, starting the dual antennas, and triggering the sending unit to send a communication instruction to the target electronic equipment;
the switching unit is used for periodically switching the dual antenna to receive the radio frequency signal broadcast by the target electronic equipment; the radio frequency signal is a radio frequency signal which is broadcast outwards through a single antenna if the target electronic equipment does not receive the instruction information within the preset time after detecting that the communication connection with the electronic equipment is disconnected; or when the communication connection with the electronic equipment is not disconnected and a communication instruction sent by the electronic equipment is received, the radio frequency signal is broadcast outwards through the single antenna;
the sampling unit is used for sampling the radio frequency signals received by the double antennas so as to obtain the phase difference of the double antennas;
and the positioning unit is used for calculating a deflection angle between the target electronic equipment and the electronic equipment according to the phase difference, the distance value between the double antennas and the radio frequency wavelength, so as to determine the position direction of the target electronic equipment.
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| CN111405508A (en) * | 2020-02-19 | 2020-07-10 | 华为技术有限公司 | Wearable device positioning method and wearable device |
| CN113411446B (en) * | 2020-03-16 | 2023-07-21 | 维沃移动通信有限公司 | Sound channel switching method and electronic equipment |
| CN114363820A (en) * | 2020-09-29 | 2022-04-15 | 华为终端有限公司 | Electronic equipment searching method and electronic equipment |
| CN112163061A (en) * | 2020-10-10 | 2021-01-01 | Oppo广东移动通信有限公司 | User positioning method and device, storage medium and electronic equipment |
| CN113207055A (en) * | 2021-05-06 | 2021-08-03 | 台湾立讯精密有限公司 | Charging device and method for positioning electronic device |
| CN117041853B (en) * | 2023-08-31 | 2024-02-09 | 上海柯锐芯微电子有限公司 | Device and method for detecting and quickly retrieving loss of low-power-consumption wireless earphone |
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