CN108833034B - Wireless communication control method, device and system - Google Patents
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Abstract
The invention relates to the technical field of wireless communication, and discloses a wireless communication control method, wireless communication equipment and a wireless communication control system. The wireless communication control method includes: receiving a target signal radiated by a transmitting end by radiating detection beams with different directions; the relative direction of the transmitting end is determined by detecting the direction of the beam when the target signal is received, and the relative position of the transmitting end is determined by the signal intensity of the target signal. By the mode, the invention can improve the detection precision and efficiency of the position of the transmitting end.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a wireless communication control method, a wireless communication device, and a wireless communication control system.
Background
The body feeling means that people can directly use the limb actions to interact personally in a simulated virtual world by combining the surrounding environment. The body feeling device can detect the body actions of the user and convert the body actions into corresponding control signals, and therefore control of the electronic equipment is achieved. The current technical principle of body sensing device for detecting the user's limb movement is mainly realized by combining the optical principle with the sensor. For example, a plurality of cameras shoot a plurality of groups of pictures to be synthesized, and the body motions of the user are judged by using an algorithm in combination with a three-axis gyroscope device carried by the user. The realization method has the advantages of low general precision, poor resolution, slow response and more misjudgments. In a slow and simple scene, the method can also be barely coped with. If the simulation is more complicated movement or role playing in the game, the implementation method cannot meet the requirements of judgment precision and response delay.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide a wireless communication control method, a wireless communication device and a wireless communication control system, which can improve the detection accuracy and efficiency of the position of the transmitting end.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is a wireless communication control method including: receiving a target signal radiated by a transmitting end by radiating detection beams with different directions; the relative direction of the transmitting end is determined by detecting the direction of the beam when the target signal is received, and the relative position of the transmitting end is determined by the signal intensity of the target signal.
In an embodiment of the present invention, the step of receiving the target signal radiated by the transmitting end by radiating the detection beams with different directions includes: using radio signals with different phases of each antenna in the antenna array to integrate detection beams with different directions for receiving a target signal radiated by a transmitting terminal; wherein, the direction change of the detection beam accords with a preset rule.
In an embodiment of the present invention, the predetermined rule is that the pointing direction of the detection beam is changed row by row or column by column for scanning the target signal.
In an embodiment of the present invention, the step of determining the relative position of the transmitting end according to the signal strength of the target signal specifically includes: and determining the distance from the transmitting end according to the RSSI of the target signal, and combining the relative direction of the transmitting end to determine the relative position of the transmitting end.
In an embodiment of the present invention, the radio signals of the detection beam and the target signal are millimeter waves.
In an embodiment of the present invention, the wireless communication control method further includes: and decoding the target signal to obtain the identity code carried by the target signal so as to determine the identity information of the transmitting terminal.
In order to solve the technical problem, the invention adopts another technical scheme that: the processor is connected with the radio frequency chip, the radio frequency chip is connected with the antenna array, the processor can input radio signals with different phases to the antenna array through the radio frequency chip and control the radio frequency chip to integrate the radio signals with different phases of each antenna in the antenna array, so that the antenna array radiates detection beams with different directions to receive a target signal radiated by a transmitting end; the processor is further configured to determine a relative direction of the transmitting end by detecting a pointing direction of the beam when the target signal is received, and determine a relative position of the transmitting end by a signal strength of the target signal.
In order to solve the technical problem, the invention adopts another technical scheme that: provided is a wireless communication control method including: the receiving end receives the target signal radiated by the transmitting end by radiating the detection beams with different directions; the receiving end determines the relative direction of the transmitting end by detecting the direction of the wave beam when receiving the target signal, and determines the relative position of the transmitting end by the signal intensity of the target signal.
In order to solve the technical problem, the invention adopts another technical scheme that: a wireless communication control system is provided, which includes a transmitting end and a receiving end, and the transmitting end and the receiving end can implement the wireless communication control method described in the foregoing embodiment.
In an embodiment of the present invention, the wireless communication control system includes a plurality of transmitting terminals, the plurality of transmitting terminals respectively correspond to different identity codes, and the plurality of transmitting terminals alternately radiate the target signal at intervals of a preset duration.
In an embodiment of the present invention, the transmitting end includes a plurality of target antennas, the plurality of target antennas respectively correspond to different identity codes, and the transmitting end can control the plurality of target antennas to alternately radiate the target signals at intervals of a preset duration.
In an embodiment of the invention, the target signal carries an identity code.
The invention has the beneficial effects that: different from the prior art, the invention provides a wireless communication control method, which receives a target signal radiated by a transmitting terminal by radiating detection beams with different directions. The relative direction of the transmitting end is determined by detecting the direction of the beam when the target signal is received, and the relative position of the transmitting end is determined by the signal intensity of the target signal. The invention can rapidly determine the relative position of the transmitting end by using the detecting beams with different directions, thereby improving the detecting precision and efficiency of the position of the transmitting end.
Drawings
Fig. 1 is a flowchart illustrating a first embodiment of a wireless communication control method according to the present invention;
fig. 2 is a flowchart illustrating a second embodiment of a wireless communication control method according to the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of a detection space according to the present invention;
fig. 4 is a flowchart illustrating a wireless communication control method according to a third embodiment of the present invention;
FIG. 5 is a block diagram of an embodiment of a wireless communication device of the present invention;
fig. 6 is a flowchart illustrating a fourth embodiment of a wireless communication control method according to the present invention;
fig. 7 is a schematic structural diagram of a first embodiment of the wireless communication control system of the present invention;
fig. 8 is a schematic structural diagram of a second embodiment of the wireless communication control system of the present invention;
fig. 9 is a schematic structural diagram of a wireless communication control system according to a third embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a wireless communication control method according to a first embodiment of the present invention.
S101: receiving a target signal radiated by a transmitting end by radiating detection beams with different directions;
in this embodiment, the transmitting end is a point signal source, which may be equipped with a point source antenna through which a target signal of an omnidirectional type is radiated. In order to detect the target signal radiated by the transmitting end, the technical scheme adopted in this embodiment is to utilize a beam forming technique to radiate detection beams with different directions, and when the detection beams cover the transmitting end, the target signal can be detected, so as to receive the target signal radiated by the transmitting end.
S102: determining the relative direction of a transmitting end by detecting the pointing direction of a wave beam when a target signal is received, and determining the relative position of the transmitting end by the signal intensity of the target signal;
in this embodiment, since the detection beam is a directional radio wave, when the detection beam is radiated to cover the transmitting end, the relative direction of the transmitting end can be determined according to the direction of the detection beam. The relative position of the transmitting end is determined, and the distance between the transmitting end and the transmitting end is also required to be determined. It can be understood that the closer to the transmitting end, the stronger the signal strength of the received target signal. In view of this, the technical solution adopted by the present embodiment for determining the distance to the transmitting end is to determine the distance to the transmitting end according to the signal strength of the target signal, so as to determine the relative position of the transmitting end.
It can be seen from the above that, the wireless communication control method provided by the present invention receives the target signal radiated by the transmitting end by radiating the detection beams with different directions. The relative direction of the transmitting end is determined by detecting the direction of the beam when the target signal is received, and the relative position of the transmitting end is determined by the signal intensity of the target signal. The invention can rapidly determine the relative position of the transmitting end by using the detecting beams with different directions, thereby improving the detecting precision and efficiency of the position of the transmitting end.
Referring to fig. 2, fig. 2 is a flowchart illustrating a wireless communication control method according to a second embodiment of the present invention.
In order to solve the technical problems of low judgment precision and serious response delay of the implementation method applied to motion sensing in the prior art, the wireless communication control method set forth in the embodiment can quickly determine the relative position of the transmitting end, and has high precision. Therefore, the wireless communication control method described in this embodiment can improve the determination accuracy and reduce the response delay as a motion sensing implementation method. Of course, the applicable environment of the wireless communication control method described in this embodiment includes, but is not limited to, motion sensing applications, and the technical field requiring the radio wave to rapidly detect the target radio wave signal may also be the applicable environment of the wireless communication control method described in this embodiment, and is not limited herein.
S201: receiving a target signal radiated by a transmitting end by radiating detection beams with different directions;
in this embodiment, the transmitting end is a point signal source, which may be equipped with a point source antenna through which a target signal of an omnidirectional type is radiated. In order to detect the target signal radiated by the transmitting end, the technical scheme adopted in this embodiment is to utilize a beam forming technique to radiate detection beams with different directions, and when the detection beams cover the transmitting end, the target signal can be detected, so as to receive the target signal radiated by the transmitting end.
Beamforming (Beamforming) is a general signal processing technique used to control the direction of propagation and reception of radio frequency signals. The beam forming is that the transmitting end weights data first and then transmits the data to form a narrow transmitting beam, and energy is directed to a target, so that the demodulation signal-to-noise ratio of the target is improved.
Further, the detection beams are directional radio waves, and the detection beams for radiating different directions can be specifically detection beams with different directions obtained by antenna array integration. The antenna array includes a plurality of antennas, and performs phase mathematical synthesis of different radio signals by using radio signals with different phases in each antenna to integrate detection beams with different radiation angles, i.e. detection beams with different directions.
The direction of the detection beam can be changed according to a preset rule, and the change of the direction of the detection beam accords with the preset rule, so that the detection beam can quickly and effectively scan all positions in a specified space, and the scanning precision of the detection beam is prevented from being influenced due to omission of a local area. The preset rule may be manually preset or determined after comprehensive evaluation according to the specific application environment and the scanning performance of the detection beam.
For example, in a somatosensory environment formed by a transmitting end and a receiving end, the receiving end determines the position of the transmitting end by receiving a target signal radiated by the transmitting end, so that somatosensory interaction is realized. The receiving end can radiate the detection beam towards any direction of the space where the receiving end is located, and the radiation range of the detection beam is a sphere. However, in an actual somatosensory environment, the transmitting end is usually disposed opposite to the receiving end, and the transmitting end moves in a space where the receiving end faces in a direction, so that the detection beams do not need to be scanned in all directions. In order to reduce the power consumed by the receiving end to radiate the detection beam, the radiation range of the detection beam can be reduced, specifically: referring to fig. 3, in a three-dimensional coordinate system with the receiving end 11 as the origin, a detection space 12 formed along an X-axis ± 45 ° angle direction and along a Y-axis ± 45 ° angle direction is a space to be scanned by the detection beam 13, and the detection space 12 is located on a side indicated by a Z-axis forward direction. The predetermined rule may be that the direction of the detection beam 13 changes and cycles within the detection space 12 row by row or row by row to quickly and efficiently scan all areas within the detection space 12 to capture the target signal 14 within the detection space 12.
In other embodiments of the present invention, the detection space is not limited to the above, the angular direction along the axis X, Y may be any angle from 0 ° to 90 °, and the direction change rule of the detection beam is not limited to the above-mentioned scanning the target signals row by row or row by row, for example, the detection beam may circumferentially surround the detection space and scan the target signals from outside to inside or from inside to outside. It should be noted that the receiving end only needs to radiate the detection beam toward a space on one side close to the transmitting end, and the radiation range of the detection beam is reduced, so that the efficiency of scanning the target signal by the detection beam can be improved, and the power consumed by the receiving end is reduced.
S202: determining the relative direction of a transmitting end by detecting the direction of a wave beam when a target signal is received;
in this embodiment, since the detection beam is a directional radio wave, when the detection beam is radiated to cover the transmitting end, the relative direction of the transmitting end can be determined according to the direction of the detection beam. The method specifically comprises the following steps: the antenna array is integrated to obtain and continuously radiate detection beams with different radiation angles outwards, when the detection beams cover the transmitting end, the target signals can be detected, and at the moment, the detection beams are considered to receive the target signals. Recording the radiation angle of the detection beam at the moment, wherein the relative angle direction of the position of the transmitting end is the radiation angle direction of the detection beam at the moment, so that the relative direction of the transmitting end is determined.
S203: determining the relative position of the transmitting terminal according to the signal strength of the target signal;
in this embodiment, after determining the relative direction of the transmitting end, in order to determine the relative position of the transmitting end, the distance to the transmitting end needs to be determined. It can be understood that the closer to the transmitting end, the stronger the signal strength of the received target signal. In view of this, the technical solution adopted by the present embodiment for determining the distance to the transmitting end is to determine the distance to the transmitting end according to the signal strength of the target signal, so as to determine the relative position of the transmitting end.
The method specifically comprises the following steps: after receiving the target Signal, the RSSI (Received Signal Strength Indication) of the target Signal is detected, and the RSSI value of the target Signal is used to describe the Signal Strength of the target Signal. The following empirical formula exists between RSSI and distance d:
RSSI＝A-10nlgd
wherein, A is the power of the target signal when the target signal is transmitted at a distance of 1 meter, n is a signal propagation factor, and the value of n depends on the interference of the wireless signal such as attenuation, reflection, multipath effect and the like in the air. The values of a and n are preset according to the application environment of the wireless communication control method described in this embodiment, that is, the relative distance from the target signal source, that is, the distance from the transmitting end, is determined according to the RSSI value of the received target signal, and the relative position of the transmitting end is determined by combining the determined relative direction of the transmitting end.
It should be noted that, the method for determining the relative position of the transmitting end by the wireless communication control method described in this embodiment can determine the relative position of the transmitting end only by recording the pointing direction of the detection beam when the target signal is detected and simply determining the RSSI value of the target signal, so that the processing efficiency is high, and the program structure for implementing the algorithm itself is simple, thereby improving the efficiency of detecting the specific position of the transmitting end. In addition, in the embodiment, the radio signal forms of the detection beam and the target signal are millimeter waves, and by means of the advantages of strong millimeter wave directivity and high pointing accuracy and by combining the antenna array with the beam forming technology, the scanning accuracy of the detection beam in the detection space can be improved, so that the accuracy of detecting the position of the transmitting end is improved, and misjudgment is effectively avoided. Meanwhile, the millimeter wave delay is low, the response speed between the detection wave beam and the target signal is high, and the implementation algorithm for determining the relative position of the transmitting end is simple in structure, so that the response speed is further improved, and the efficiency for detecting the specific position of the transmitting end is further improved. In addition, because the wavelength of the millimeter wave is short, and the wavelength corresponding to the 60G frequency band is only 5mm, the volume of the antenna transceiving structure corresponding to the millimeter wave is small, and even if the antenna array is adopted to realize the transceiving of millimeter wave signals, the design structure volume of the antenna array can tend to be miniaturized. The physical characteristics of the millimeter wave itself and the application thereof in communication are within the understanding range of those skilled in the art, and thus the detailed description thereof is omitted here.
The wireless communication control method described in this embodiment is applied to a motion sensing scene, and by detecting the positions of the transmitting ends at different times, the connecting line of the positions of the transmitting ends is the motion track of the transmitting ends. Because the scanning speed of the detection beam is high (can be microsecond level) and is far greater than the moving speed of the transmitting end, the motion track of the transmitting end can be accurately obtained, and input of different control instructions in a somatosensory scene (such as left shifting of the transmitting end to increase television volume) can be realized.
It can be seen from the above that, the wireless communication control method provided by the present invention receives the target signal radiated by the transmitting end by radiating the detection beams with different directions. The relative direction of the transmitting end is determined by detecting the pointing direction of the wave beam when the target signal is received, and the relative position of the transmitting end is determined by the signal strength of the target signal in combination with the RSSI ranging principle. The detection beam used in the invention is a millimeter wave combined with a beam forming technology, so that the scanning precision and the response speed of the detection target signal are greatly improved, the relative position determination algorithm of the transmitting end is simple in structure, and the detection efficiency of the position of the transmitting end can be improved.
Referring to fig. 4, fig. 4 is a flowchart illustrating a wireless communication control method according to a third embodiment of the present invention.
S301: receiving a target signal radiated by a transmitting end by radiating detection beams with different directions;
in this embodiment, the transmitting end is a point signal source, which may be equipped with a point source antenna through which a target signal of an omnidirectional type is radiated. In order to detect the target signal radiated by the transmitting end, the technical scheme adopted in this embodiment is to utilize a beam forming technique to radiate detection beams with different directions, and when the detection beams cover the transmitting end, the target signal can be detected, so as to receive the target signal radiated by the transmitting end.
S302: determining the relative direction of a transmitting end by detecting the direction of a wave beam when a target signal is received;
in this embodiment, since the detection beam is a directional radio wave, when the detection beam is radiated to cover the transmitting end, the relative direction of the transmitting end can be determined according to the direction of the detection beam. The method specifically comprises the following steps: the antenna array is integrated to obtain and continuously radiate detection beams with different radiation angles outwards, when the detection beams cover the transmitting end, the target signals can be detected, and at the moment, the detection beams are considered to receive the target signals. Recording the radiation angle of the detection beam at the moment, wherein the relative angle direction of the position of the transmitting end is the radiation angle direction of the detection beam at the moment, so that the relative direction of the transmitting end is determined.
S303: determining the relative position of the transmitting terminal according to the signal strength of the target signal;
in this embodiment, after determining the relative direction of the transmitting end, in order to determine the relative position of the transmitting end, the distance to the transmitting end needs to be determined. It can be understood that the closer to the transmitting end, the stronger the signal strength of the received target signal. In view of this, the technical solution adopted by the present embodiment for determining the distance to the transmitting end is to determine the distance to the transmitting end according to the signal strength of the target signal, so as to determine the relative position of the transmitting end.
S304: decoding the target signal to obtain an identity code carried by the target signal, thereby determining identity information of a transmitting terminal;
the difference between this embodiment and the above embodiments is that the wireless communication control method described in this embodiment further includes performing a decoding operation on the target signal to obtain the identity code carried by the target signal. In a practical application scenario, there may be multiple transmitting ends radiating a target signal. In order to distinguish the target signals radiated by different transmitting terminals, the transmitting terminals will encode the corresponding identity codes into the target signals when the transmitting terminals radiate the target signals, and the identity codes corresponding to different transmitting terminals are different. After receiving the target signal, decoding the target signal to obtain the identity code carried by the target signal, thereby determining the identity information of the transmitting terminal radiating the target signal, i.e. determining the transmitting terminal to which the target signal belongs. Through the mode, the positions of different transmitting ends can be respectively determined in an application scene with a plurality of transmitting ends, and the positions of the transmitting ends can be simultaneously detected.
It can be seen from the above that, the wireless communication control method provided by the present invention receives the target signal radiated by the transmitting end by radiating the detection beams with different directions. The relative direction of the transmitting end is determined by detecting the direction of the wave beam when the target signal is received, and the relative position of the transmitting end is determined by the signal intensity of the target signal, so that the detection precision and efficiency of the position where the transmitting end is located can be improved. And the target signals radiated by different transmitting terminals are distinguished by using the identity codes, so that the positions of the transmitting terminals can be simultaneously detected.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a wireless communication device according to an embodiment of the present invention.
In the embodiment, the wireless communication device 2 includes a processor 21, a radio frequency chip 22 and an antenna array 23, the processor 21 is connected to the radio frequency chip 22, the radio frequency chip 22 is connected to the antenna array 23, the processor 21 can input radio signals with different phases to the antenna array 23 through the radio frequency chip 22, and control the radio frequency chip 22 to integrate the radio signals with different phases of antennas in the antenna array 23, so that the antenna array 23 radiates detection beams with different directions to receive a target signal radiated by a transmitting end. The processor 21 is further configured to determine the relative direction of the transmitting end by detecting the pointing direction of the beam when receiving the target signal, and determine the relative position of the transmitting end by the signal strength of the target signal.
It should be noted that, the process and the principle of the processor 21 for determining the relative position of the transmitting end described in the embodiment have been described in detail in the above embodiment, and are not described herein again.
In the present embodiment, the processor 21 is integrated with the MAC layer and the physical layer of ieee802.11ad and WiGig, and is integrated with the CPU having independent computing capability, so that the power consumption is low, and the processor can be applied to a portable electronic terminal. The processor 21 supports multiple phase modulation modes such as BPSK, QPSK, QAM and the like, supports a USB3.0 control protocol, supports debugging and development modes such as UART, PWM, SPI, GPIO and the like, can be suitable for expanding various peripherals, and is simple and mature in secondary development.
The radio frequency chip 22 adopts a zero intermediate frequency mode, and has the characteristics of low power consumption, low noise, high sensitivity and the like. The rf chip 22 supports a beam forming technique, which can support phase variation of multiple antennas, so that the rf chip has the capability of integrating radio signals with different phases, thereby obtaining detection beams with different directions for receiving a target signal. The signals transmitted between the radio frequency chip 22 and the processor 21 are communicated by IQ demodulation, and timing signals are given to the processor 21 to control the wireless communication device 2 to radiate target signals in a time-sharing manner.
Referring to fig. 6, fig. 6 is a flowchart illustrating a wireless communication control method according to a fourth embodiment of the present invention.
S401: the receiving end receives the target signal radiated by the transmitting end by radiating the detection beams with different directions;
in this embodiment, the transmitting end is a point signal source, which may be equipped with a point source antenna through which a target signal of an omnidirectional type is radiated. In order to detect the target signal radiated by the transmitting end, the technical scheme adopted in this embodiment is that the receiving end utilizes a beam forming technique to radiate detection beams with different directions, and when the detection beams cover the transmitting end, the target signal can be detected, so that the receiving end receives the target signal radiated by the transmitting end.
S402: the receiving end determines the relative direction of the transmitting end by detecting the pointing direction of the wave beam when receiving the target signal, and determines the relative position of the transmitting end by the signal intensity of the target signal;
in this embodiment, since the detection beam is a directional radio wave, when the detection beam radiated by the receiving end covers the transmitting end, the receiving end can determine the relative direction of the transmitting end according to the direction of the detection beam. The relative position of the transmitting end is determined, and the distance between the transmitting end and the transmitting end is also required to be determined. It can be understood that, the closer the receiving end is to the transmitting end, the stronger the signal strength of the target signal received by the receiving end is. In view of this, the technical solution adopted in the present embodiment for determining the distance between the receiving end and the transmitting end is to determine the distance between the receiving end and the transmitting end according to the signal strength of the target signal, so as to determine the relative position of the transmitting end.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a wireless communication control system according to a first embodiment of the present invention.
In this embodiment, the wireless communication control system 3 includes a transmitting end 31 and a receiving end 32, and the transmitting end 31 and the receiving end 32 can implement the wireless communication control method described in the above embodiments, which is not described herein again.
The connection and functions of the elements of the receiving end 32 are described in detail in the above embodiments, and will not be described herein. It should be noted that the transmitting end 31 and the receiving end 32 have similar device structures, except that the transmitting end 31 includes a target antenna 311 having a structure different from the antenna array 321 of the receiving end 32, and the target antenna 311 of the transmitting end 31 is a point-source omnidirectional antenna, and does not perform an integration operation of radio signals, but simply radiates omnidirectional target signals as required, but does not mean that the transmitting end 31 does not have an integration function of radio signals with different phases, and is not limited herein.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a wireless communication control system according to a second embodiment of the present invention.
In the present embodiment, the wireless communication control system 4 includes a transmitting end 41 and a receiving end 42. The difference from the above embodiment is that the wireless communication control system 4 includes a plurality of transmitting terminals 41, and the identity codes corresponding to the transmitting terminals 41 are different. When a plurality of transmitting terminals 41 simultaneously radiate target signals, the receiving terminal 42 simultaneously receives different target signals from different transmitting terminals 41, and the different target signals interfere with each other, so that the receiving terminal 42 cannot decode the target signals, and the identity information of the transmitting terminal 41 to which the target signals belong cannot be determined.
In order to avoid the foregoing situation, the wireless communication control system 4 described in this embodiment adopts a time-sharing technique, that is, the rf chips of different transmitting terminals 41 give different timing signals (CLK signals) to their corresponding processors, and the different timing signals are used to enable the different transmitting terminals 41 to alternately radiate the target signals at intervals of a preset duration, so as to avoid signal interference caused by the target signals being simultaneously radiated by the different transmitting terminals 41.
The preset time period may be 1 to 5ms, for example, 1 ms. The speed of alternately radiating the target signal by the different transmitting terminals 41 with the preset duration as the periodic interval is much higher than the moving speed of the transmitting terminals 41, so that the time-sharing technique adopted by the different transmitting terminals 41 does not affect the signal transceiving between the transmitting terminals 41 and the receiving terminals 42. And because the target signals radiated by different transmitting terminals 41 are similar, the difference is only that the carried identity codes are different, and the specific position of the transmitting terminal 41 is indicated, the radiation process of the target signal does not need to transmit complex data, so that a complex synchronization process is not needed, the data transmission amount of the transmitting terminal 41 is small, and the structural reliability is high.
A specific application scenario of the wireless communication control system 4 set forth in this embodiment is provided below. The wireless communication control system 4 is applied to the adjustment of the volume of the television and the program channel. The wireless communication control system 4 includes at least two transmitting terminals 41, and the transmitting terminals 41 are at least worn on the left and right hands of the user. When the left hand of the user moves to the left of the user, the receiving end 42 determines the positions of the transmitting end 41 on the left hand of the user at different times according to the identity code of the transmitting end 41 on the left hand of the user, so as to determine the motion track of the transmitting end to be left-moving, and therefore, a control instruction is input into the television to adjust the volume of the television. The transmitting terminal 41 worn by the right hand of the user is used for controlling the adjustment of the program channel, and the same principle as the volume adjustment is adopted.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a wireless communication control system according to a third embodiment of the present invention.
In the present embodiment, the wireless communication control system 5 includes a transmitting end 51 and a receiving end 52. The difference from the above embodiment is that the transmitting terminal 51 includes a plurality of target antennas 511, the identity codes corresponding to the target antennas 511 are different, the target antennas 511 are parts worn by a user of the wireless communication control system 5, and each target antenna 511 is electrically connected to the body of the transmitting terminal 51 through a circuit trace. When the target signals are radiated by the multiple target antennas 511 at the same time, the receiving end 52 receives different target signals from different target antennas 511 at the same time, and the different target signals interfere with each other, so that the receiving end 52 cannot decode the target signals, and the identity information of the target antenna 511 to which the target signals belong cannot be determined.
To avoid the above situation, the wireless communication control system 5 described in this embodiment adopts a time-sharing technique, i.e., the rf chip gives different timing signals (CLK signals) to the processor. The processor transmits target signals corresponding to different target antennas 511 to the radio frequency chip through the IQ channel according to different timing signals, and the radio frequency chip converts the target signals to a millimeter wave frequency band, so that the different target antennas 511 alternately radiate the target signals at intervals of a preset time length, thereby avoiding signal interference caused by the simultaneous radiation of the target signals by the different target antennas 511.
The preset time period may be 1 to 5ms, for example, 1 ms. The speed of the different target antennas 511 alternately radiating the target signals with the preset time length as the periodic interval is much higher than the moving speed of the target antennas 511, so that the time-sharing technique adopted by the transmitting terminal 51 does not affect the signal transceiving between the transmitting terminal 51 and the receiving terminal 52. And because the target signals radiated by different target antennas 511 are similar, the difference is only that the carried identity codes are different, and the specific position of the target antenna 511 is indicated, the radiation process of the target signal does not need to transmit complex data, so that a complex synchronization process is not needed, the data transmission amount of the transmitting terminal 51 is small, and the structural reliability is high.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A wireless communication control method, characterized in that the wireless communication control method comprises:
receiving a target signal radiated by a transmitting end by radiating detection beams with different directions; the change of the direction of the detection beam conforms to a preset rule, so that the detection beam scans a specified space;
the change of the pointing direction of the detection beam conforms to a preset rule, so that the detection beam scans a designated space, and the method comprises the following steps: in a three-dimensional coordinate system taking a receiving end as an origin, a detection space formed along an X-axis +/-45-degree angle direction and a Y-axis +/-45-degree angle direction is a space required to be scanned by a detection beam, and the detection space is positioned on one side indicated by a Z-axis forward direction; the preset rule may be that, in the detection space, the pointing direction of the detection beam changes row by row or row by row and circulates back and forth to scan the area in the detection space, so as to capture the target signal in the detection space;
the change of the pointing direction of the detection beam conforms to a preset rule, so that the detection beam scans a designated space, or comprises: the angle direction of the detection space along the X, Y axis can be any angle of 0-90 degrees; the preset rule of the directional change of the detection beam can also be that the detection beam circumferentially surrounds the detection space and scans a target signal from outside to inside or from inside to outside;
the receiving end only needs to radiate the detection beam towards one side space close to the transmitting end so as to reduce the radiation range of the detection beam;
determining the relative direction of the transmitting terminal through the pointing direction of the detection wave beam when the target signal is received, and determining the relative position of the transmitting terminal through the signal strength of the target signal;
the determining the relative position of the transmitting end comprises: the method comprises the steps that the positions of the transmitting ends at different times are detected, and a connecting line of the positions of the transmitting ends at different times is used as a motion track of the transmitting ends, so that different control instructions in a somatosensory scene can be input;
the plurality of transmitting terminals are respectively corresponding to different identity codes so as to distinguish target signals radiated by different transmitting terminals; when the transmitting end radiates the corresponding target signal, the corresponding identity code is coded into the corresponding target signal, and the identity codes corresponding to different transmitting ends are different;
after receiving a target signal, decoding the target signal to obtain an identity code carried by the target signal, thereby determining identity information of the transmitting terminal, namely determining the transmitting terminal corresponding to the target signal;
the detection beam and the radio signal form of the target signal are millimeter waves.
2. The method according to claim 1, wherein the step of receiving the target signal radiated from the transmitting end by radiating the detection beams with different directions includes:
and integrating the detection beams with different directions by utilizing the radio signals with different phases of each antenna in the antenna array so as to receive the target signal radiated by the transmitting terminal.
3. The method according to claim 1, wherein the step of determining the relative position of the transmitting end according to the signal strength of the target signal specifically comprises:
and determining the distance between the target signal and the transmitting terminal according to the RSSI of the target signal, and determining the relative position of the transmitting terminal by combining the relative direction of the transmitting terminal.
4. A wireless communication device is characterized by comprising a processor, a radio frequency chip and an antenna array, wherein the processor is connected with the radio frequency chip, the radio frequency chip is connected with the antenna array, the processor can input radio signals with different phases to the antenna array through the radio frequency chip and control the radio frequency chip to integrate the radio signals with different phases of antennas in the antenna array, so that the antenna array radiates detection beams with different directions to receive a target signal radiated by a transmitting end; the change of the direction of the detection beam conforms to a preset rule, so that the detection beam scans a specified space;
the change of the pointing direction of the detection beam conforms to a preset rule, so that the detection beam scans a designated space, and the method comprises the following steps: in a three-dimensional coordinate system taking a receiving end as an origin, a detection space formed along an X-axis +/-45-degree angle direction and a Y-axis +/-45-degree angle direction is a space required to be scanned by a detection beam, and the detection space is positioned on one side indicated by a Z-axis forward direction; the preset rule may be that, in the detection space, the pointing direction of the detection beam changes row by row or row by row and circulates back and forth to scan the area in the detection space, so as to capture the target signal in the detection space;
the change of the pointing direction of the detection beam conforms to a preset rule, so that the detection beam scans a designated space, or comprises: the angle direction of the detection space along the X, Y axis can be any angle of 0-90 degrees; the preset rule of the directional change of the detection beam can also be that the detection beam circumferentially surrounds the detection space and scans a target signal from outside to inside or from inside to outside;
the receiving end only needs to radiate the detection beam towards one side space close to the transmitting end so as to reduce the radiation range of the detection beam;
the processor is further configured to determine a relative direction of the transmitting end according to the pointing direction of the detection beam when the target signal is received, and determine a relative position of the transmitting end according to the signal strength of the target signal; the determining the relative position of the transmitting end comprises: the method comprises the steps that the positions of the transmitting ends at different times are detected, and a connecting line of the positions of the transmitting ends at different times is used as a motion track of the transmitting ends, so that different control instructions in a somatosensory scene can be input; the plurality of transmitting terminals are respectively corresponding to different identity codes so as to distinguish target signals radiated by different transmitting terminals; when the transmitting end radiates the corresponding target signal, the corresponding identity code is coded into the corresponding target signal, and the identity codes corresponding to different transmitting ends are different;
the processor is further configured to decode the target signal after receiving the target signal to obtain an identity code carried by the target signal, so as to determine identity information of the transmitting end, that is, determine the transmitting end corresponding to the target signal;
the detection beam and the radio signal form of the target signal are millimeter waves.
5. A wireless communication control method, characterized in that the wireless communication control method comprises:
the receiving end receives the target signal radiated by the transmitting end by radiating the detection beams with different directions; the change of the direction of the detection beam conforms to a preset rule, so that the detection beam scans a specified space;
the change of the pointing direction of the detection beam conforms to a preset rule, so that the detection beam scans a designated space, and the method comprises the following steps: in a three-dimensional coordinate system taking a receiving end as an origin, a detection space formed along an X-axis +/-45-degree angle direction and a Y-axis +/-45-degree angle direction is a space required to be scanned by a detection beam, and the detection space is positioned on one side indicated by a Z-axis forward direction; the preset rule may be that, in the detection space, the pointing direction of the detection beam changes row by row or row by row and circulates back and forth to scan the area in the detection space, so as to capture the target signal in the detection space;
the change of the pointing direction of the detection beam conforms to a preset rule, so that the detection beam scans a designated space, or comprises: the angle direction of the detection space along the X, Y axis can be any angle of 0-90 degrees; the preset rule of the directional change of the detection beam can also be that the detection beam circumferentially surrounds the detection space and scans a target signal from outside to inside or from inside to outside;
the receiving end only needs to radiate the detection beam towards one side space close to the transmitting end so as to reduce the radiation range of the detection beam;
the receiving end determines the relative direction of the transmitting end through the pointing direction of the detection wave beam when receiving the target signal, and determines the relative position of the transmitting end through the signal intensity of the target signal; the determining the relative position of the transmitting end comprises: the method comprises the steps that the positions of the transmitting ends at different times are detected, and a connecting line of the positions of the transmitting ends at different times is used as a motion track of the transmitting ends, so that different control instructions in a somatosensory scene can be input; the plurality of transmitting terminals are respectively corresponding to different identity codes so as to distinguish target signals radiated by different transmitting terminals; when the transmitting end radiates the corresponding target signal, the corresponding identity code is coded into the corresponding target signal, and the identity codes corresponding to different transmitting ends are different;
after receiving a target signal, the receiving end decodes the target signal to obtain an identity code carried by the target signal, so as to determine identity information of the transmitting end, namely determine the transmitting end corresponding to the target signal;
the detection beam and the radio signal form of the target signal are millimeter waves.
6. A wireless communication control system, comprising a transmitting end and a receiving end, wherein the transmitting end and the receiving end are capable of implementing the wireless communication control method according to claim 5.
7. The wireless communication control system according to claim 6, wherein the wireless communication control system includes a plurality of the transmitting terminals, the plurality of transmitting terminals respectively correspond to different identity codes, and the plurality of transmitting terminals alternately radiate the target signal at intervals of a preset duration; or
The transmitting end comprises a plurality of target antennas, the target antennas are respectively corresponding to different identity codes, and the transmitting end can control the target antennas to alternately radiate the target signals at intervals of preset time length;
wherein the target signal carries an identity code.
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| CN112311482B (en) * | 2020-11-26 | 2023-06-09 | Oppo（重庆）智能科技有限公司 | Positioning method, device, system, receiving node, transmitting node and storage medium |
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