TWI669976B - Wireless communication system and method - Google Patents

Abstract

The present invention provides a wireless communication system including a wireless transceiver device and a processing device. The wireless transceiver transmits the wireless signal in the transmit power and the transmit direction, and senses in the scan direction. The processing device includes a direction control module, a power adjustment module, and a boundary drawing module. The direction control module controls the scanning direction according to the reference position and generates an end direction message. The power adjustment module adjusts the transmit power according to the reference position and the end direction message and generates an endpoint power message. The boundary rendering module generates a boundary message according to the reference location, the location of the wireless transceiver, the endpoint direction message, and the endpoint power message. The processing device controls the transmission direction and the transmission power according to the endpoint direction message, the endpoint power message, and the boundary message to limit the transmission of the wireless signal to a specific range.

Description

Wireless communication system and method

The present invention relates to a wireless communication system and method, and more particularly to a wireless communication system and method that can limit the transmission of wireless signals to a specific range.

Wireless networks have been widely used in daily life, and for security and management considerations, how to limit the transmission and access of wireless signals within a desired range is an important issue.

In the prior art, the area where communication is allowed is artificially defined, and the user's position is used to determine whether the user is located in the area where communication is permitted. However, the prior art cannot actively limit the transmission range of the wireless signal to the area where the communication is allowed. Therefore, in the case where the user's position is unknown, it is still difficult to ensure that the user can only receive the wireless signal in the area where the communication is permitted.

Therefore, how to develop a wireless communication system and method that can improve the above-mentioned prior art is an urgent need.

The purpose of the present invention is to provide a wireless communication system and method, in which a processing device generates a corresponding endpoint direction message and an endpoint power message according to each reference position, thereby generating a boundary message, and the processing device according to the endpoint direction message and the endpoint power message And the border message control wireless transmitting device transmits the wireless signal in a corresponding transmitting direction and transmitting power, thereby limiting the transmission of the wireless signal to a specific range.

To achieve the above object, the present invention provides a wireless communication system including a wireless transceiver device and a processing device. The wireless transceiver is configured to transmit wireless signals in the transmit power and the transmit direction, and sense in the scan direction. The processing device is connected to the wireless transceiver device and receives at least one reference position, and includes a direction control module, a power adjustment module, and a boundary drawing module. The direction control module is configured to control the transmitting direction and the scanning direction. The direction control module controls the scanning direction and generates the end direction information according to each reference position. The power adjustment module is configured to dynamically adjust the transmit power, wherein the power adjustment module adjusts the transmit power and generates the endpoint power message according to each reference position and the corresponding end direction message. The border rendering module receives at least one reference location, a location of the wireless transceiver, at least one endpoint direction message, and at least one endpoint power message, and generates a boundary message. The processing device controls the transmission direction and the transmission power according to the at least one endpoint direction message, the at least one endpoint power message, and the boundary message to limit the transmission of the wireless signal to a specific range.

In order to achieve the above object, the present invention further provides a wireless communication method, comprising the steps of: (a) receiving at least one reference position; (b) controlling the scanning direction of the wireless transceiver and generating an end direction information according to each reference position; c) adjusting the transmit power of the wireless transceiver to transmit the wireless signal and generating the endpoint power message according to each reference position and the corresponding endpoint direction message; (d) according to at least one reference location, the location of the wireless transceiver, at least one end The point direction message and the at least one endpoint power message generate a boundary message; and (e) controlling the transmitting direction and the transmitting power of the wireless transmitting device to transmit the wireless signal according to the at least one endpoint direction message, the at least one endpoint power message, and the boundary message, to send the wireless signal The transmission is limited to a specific range.

Some exemplary embodiments embodying the features and advantages of the present invention are described in detail in the following description. It should be understood that the present invention is capable of various modifications in various embodiments and is not to be construed as a limitation.

1 is a schematic diagram of a system architecture of a wireless communication system according to a preferred embodiment of the present invention, and FIG. 2 is a schematic diagram of a system architecture of the processing apparatus shown in FIG. 1. As shown in FIGS. 1 and 2, the wireless communication system 1 of the present invention includes a wireless transceiver 10 and a processing device 20. The wireless transceiver device 10 is configured to transmit a wireless signal in a transmit power and a transmit direction, and perform sensing in a scan direction. In some embodiments, the wireless transceiver device 10 includes an antenna array 101 and a wireless transmitting device 102. The antenna array 101 is configured to perform sensing, the wireless transmitting device 102 is configured to transmit wireless signals, and the antenna array 101 is configured to include a plurality of A controllable phase antenna or a plurality of directional antennas is preferred, but not limited thereto. It is worth mentioning that the communication technology used by the wireless transmitting device 102 to transmit wireless signals may be, for example, WiFi, BLE, Zigbee, LTE, RFID, etc., but is not limited to the above communication technologies.

The processing device 20 is coupled to the wireless transceiver 10 and receives at least one reference location. The processing device 20 includes a direction control module 201, a power adjustment module 202, and a boundary drawing module 203. The direction control module 201 is configured to control the transmitting direction and the scanning direction of the wireless transceiver device 10. The direction control module 201 controls the scanning direction of the wireless transceiver device 10 and generates the endpoint direction information according to each reference position. The power adjustment module 202 is configured to dynamically adjust the transmit power of the wireless transceiver device 10, wherein the power adjustment module 202 adjusts the transmit power and generates the endpoint power message according to each reference position and the corresponding endpoint direction message. The boundary rendering module 203 receives the reference location, the location of the wireless transceiver 10, the endpoint direction message, and the endpoint power message, and generates a boundary message. The processing device 20 controls the transmission direction and the transmission power according to the endpoint direction message, the endpoint power message, and the boundary message to limit the transmission of the wireless signal to a specific range.

In fact, the area within the specific range can be regarded as a wireless transmission area, and the reference position is regarded as an endpoint of the wireless transmission area, and the processing device 20 generates a corresponding endpoint power message and an endpoint direction message according to each endpoint. Taking either endpoint as an example, the corresponding endpoint power message represents the transmit power of the wireless transceiver 10 to transmit the wireless signal to the endpoint, and the corresponding endpoint direction message represents the direction of the wireless transceiver 10 toward the endpoint. Therefore, in the transmitting direction of the wireless transceiver device 10 toward any of the endpoints, the processing device 20 can control the transmit power of the wireless transceiver device 10 and limit the transmission of the wireless signal through the corresponding endpoint power message and the endpoint direction message. Between the wireless transceiver 10 and the endpoint. Furthermore, the reference location connection, that is, the connection between the endpoints, can be regarded as the boundary of the wireless transmission area, and the processing device 20 generates a boundary message according to all the endpoint power messages and all the endpoint direction messages, wherein the boundary message includes wireless transmission. The direction information and power message corresponding to each location on the boundary of the area, so that the processing device 20 can limit the transmission of the wireless signal to the boundary of the wireless transmission area according to the boundary message. Therefore, the processing device 20 controls the transmission direction and the transmission power of the wireless transceiver device 10 according to the endpoint direction message, the endpoint power message, and the boundary message to limit the transmission of the wireless signal to the wireless transmission region, where the wireless transmission region is The enclosed area defined for the connection between all reference locations and reference locations. Thereby, the wireless communication system 1 can limit the transmission of the wireless signal to a specific range regardless of whether there is a physical boundary (such as a wall), ensuring that the user can only receive the wireless signal within a specific range, and the specific The shape of the field of the range is not limited, and it may also have an irregular shape. By controlling the transmission direction by the direction control module 201, the wireless transmission area can be divided into a plurality of sub-areas, and the functions of data flow, communication authority, and monitoring enhancement are respectively adjusted by using the sub-area as a unit.

In addition, the more the number of reference positions, the closer the closed area formed by the reference position and its connection is to the desired wireless transmission area, that is, the wireless communication system can more accurately limit the transmission of the wireless signal to a specific range. . Taking the 3A and 3B diagrams as an example, the 3A and 3B diagrams are schematic diagrams showing the wireless communication system of FIG. 1 limiting the transmission of the wireless signal within a specific range. As shown in Figures 3A and 3B, the dashed area is the target wireless transmission area 50, as compared to the first wireless transmission area 51 defined by four reference locations 40 and their connections in Figure 3A, in Figure 3B. The second wireless transmission area 52 defined by the five reference locations 40 and their connections is significantly closer to the target wireless transmission area 50.

Furthermore, the source of the reference position is not limited, and can be obtained by the user setting or by receiving an external signal, or by the wireless transceiver 10 sensing the external signal. In some embodiments, the wireless communication system 1 further includes at least one boundary setting device (not shown). The boundary setting device is disposed at the reference position and is configured to transmit the position signal. After the wireless transceiver device 10 receives the position signal, the direction control module The group 201 controls the wireless transceiver device 10 to sense all beam directions, and uses the beam direction that senses the maximum intensity of the acquired signal energy as the direction of the boundary setting device relative to the direction of the wireless communication system 1, thereby knowing the reference position. In some embodiments, the position signal transmitted by the boundary setting device reflects the reference position, and the wireless transceiver device 10 receives the position signal and provides it to the processing device 20, so that the processing device 20 obtains the reference position via the position signal.

In some embodiments, the wireless communication system 1 further includes a storage device 30 that is configured to store signals and messages generated and received by the wireless transceiver device 10 and the processing device 20. In some embodiments, the processing device 20 further includes a band switching module 204 configured to switch the frequency band of the wireless signal transmitted by the wireless transceiver device 10.

In some embodiments, the processing device 20 further includes a signal grouping module 205, a path analysis module 206, and a radio frequency image module 207 for establishing a radio frequency image. The signal grouping module 205 receives at least one reflected signal through the wireless transceiver device 10, and classifies the reflected signals according to the signal characteristics. The signal grouping module 205 can classify the reflected signals according to the transmit power corresponding to the power of the reflected signals. But not limited to this. The path analysis module 206 receives and analyzes the classified reflection signals and generates an analysis result. The radio frequency image module 207 receives and generates a radio frequency image according to the analysis result. In some embodiments, the reflected signal is generated by the wireless signal being reflected by the at least one physical entity, and the analysis result reflects the physical characteristics of the physical entity, so that the physical entity in the wireless signal transmission range can be identified by using the radio frequency image. Positioning to achieve area monitoring.

In order to improve the accuracy of the radio frequency image, in some embodiments, during the process of establishing the radio frequency image, the direction control module 201 controls the radio transceiver device 10 to transmit the radio signals in a plurality of directions, correspondingly, the direction control mode. The group 201 controls the wireless transceiver device 10 to receive the reflected signals in a plurality of directions, wherein the band switching module 204 switches the wireless signals to have a plurality of frequency bands in any direction, and the power adjustment module is in any frequency band. 202 controls the wireless transceiver device 10 to transmit wireless signals at a plurality of transmission powers, respectively. In this embodiment, the processing device 20 further includes a frequency band comparison module 208. The frequency band comparison module 208 receives the plurality of classified reflected signals, and compares the plurality of reflected signals according to the plurality of frequency bands to generate As a result of the comparison, the RF image module 207 receives and generates a radio frequency image based on the analysis result and the comparison result. Since the physical entity has different physical characteristics (such as transmittance and reflectivity) with respect to the signals of the respective frequency bands, by transmitting the multi-band wireless signals, it is helpful to identify the physical entity and generate the generated radio frequency image. Closer to the real situation.

In order to facilitate the process of establishing a radio frequency image, the following describes an actual application environment of the wireless communication system 1 for explanation. Figure 4 is a schematic diagram of the actual application environment of the wireless communication system shown in Figure 1, and Figures 5A, 5B and 5C are schematic diagrams showing the relative positions between the wireless transceiver and the physical entity in each transmission direction, 6A The 6B and 6C diagrams are diagrams showing the reflected signals received by the radio transceiver in the transmission direction shown in FIG. 5A. As shown in FIG. 4, the wireless communication system 1 is placed in an actual environment. In the transmitting direction of each wireless transceiver device 10, the type and number of physical entities, and the relative positions between the wireless transceiver device 10 and the object entity are The difference, correspondingly, is different in the reflection signals in all directions. Taking the three emission directions 61, 62, and 63 shown in FIG. 4 as an example, the 5A, 5B, and 5C diagrams respectively show the relative positions of the radio transceiver 10 and the physical entity in the transmission directions 61, 62, and 63. As shown in FIGS. 5A, 5B, and 5C, the number of walls 64 and articles 65 are different in the three emission directions 61, 62, and 63, and the relative positions between the wireless transceiver device 10, the wall 64, and the article 65 are also There is a difference, so in the three transmission directions 61, 62 and 63, the reflected signals received by the radio transceiver 10 are not the same.

After receiving the reflected signal, the processing device 20 will process the reflected signal accordingly to facilitate the establishment of the radio frequency image. Taking the reflected signal in the emission direction 61 as an example, as shown in FIG. 6A, there is a wall 64 and two objects 65 in the emission direction 61, wherein the wireless signals are respectively transmitted at times T0, T1, T2 and T3. Distance required time. Based on the difference in physical characteristics between the wall 64 and the item 65, the wireless signal will reflect or/and transmit when it touches the wall 64 and the item 65. Therefore, as shown in FIG. 6B, the wireless transceiver 10 receives different propagation paths at different timings. And the reflected signal of the transmitted power. The signal grouping module 205 classifies the reflected signals received by the wireless transceiver device 10 according to the transmission power corresponding to the power of the reflected signals. The path analysis module 206 analyzes the classified reflected signals to know the relationship between the reflected signals before and after reaching the wireless transceiver 10, and produces a result as shown in FIG. 6C, where T4 = 2T0, T5 = 2 (T0) +T1), T6 = 2 (T0+T1+T2), T7 = 2 (T0+T1+T2+T3), T8 = 2(T0+T1). Thereby, the processing device 20 can derive the position of the wall 64 and the article 65 relative to the wireless transceiver device 10 by the timing corresponding to each of the reflected signals.

In some embodiments, the processing device 20 further includes an image comparison module 209 and an event determination module 210 for comparing and determining radio frequency images. The image comparison module 209 receives the plurality of radio frequency images generated by the radio frequency image module 207 and compares them to generate a comparison result. The event judging module 210 receives and obtains the position change amount of the physical entity according to the comparison result. By comparing the radio frequency images, the position change of the physical entity in the wireless signal transmission range can be obtained, and even the moving path is obtained through multiple position changes, which is beneficial to strengthen the area monitoring.

Figure 7 is a flow chart of the wireless communication method of the preferred embodiment of the present invention. The wireless communication method of this embodiment is applied to the wireless communication system 1 shown in Fig. 1, and includes the following steps.

First, at least one reference position is received (as shown in step S1), wherein preferably, but not limited to, the reference position is obtained by the position signal transmitted by the boundary setting means.

Then, according to each reference position, the scanning direction of the wireless transceiver device 10 is separately controlled and an endpoint direction message is generated (as shown in step S2).

Then, according to each reference position and the corresponding end direction direction message, the transmitting power of the wireless transmitting device 10 to transmit the wireless signal is respectively adjusted and an endpoint power message is generated (as shown in step S3).

Then, a boundary message is generated according to the reference location, the location of the wireless transceiver, the endpoint direction message, and the endpoint power message (as shown in step S4).

Finally, the transmitting direction and the transmitting power of the wireless signal transmitting device 10 are controlled according to the endpoint direction message, the endpoint power message and the boundary message to limit the transmission of the wireless signal to a specific range (as shown in step S5). Follow-up activities, such as other sensing activities and communications.

In some embodiments, the wireless communication method further includes the steps of: determining whether a band switching request is received, and if the determination result is yes, switching the frequency band of the wireless signal, and performing step S3, and if the determination result is no, performing the subsequent step. This step can be performed between steps S2 and S3, between steps S3 and S4, between step S4 or S5 or after step S5.

Figure 8 is a flow chart of a wireless communication method according to another preferred embodiment of the present invention. The wireless communication method of this embodiment is applicable to the wireless communication system 1 shown in Fig. 1, wherein the steps similar to those in Fig. 7 are They are denoted by the same reference numerals and will not be described again. However, compared with the wireless communication method shown in FIG. 7, the wireless communication method shown in FIG. 8 further includes the following steps:

Obtaining a power upper limit corresponding to a transmission direction according to a frequency band, a transmission direction, an end direction direction message, an endpoint power message, and a boundary message of the wireless signal, and adjusting the transmission power to the initial power, where the initial power is not greater than the power upper limit (as in step S6) The power upper limit is the transmission power of the wireless transceiver device 10 to transmit the transmitted wireless signal to the corresponding endpoint or boundary, and each transmission direction has a corresponding power upper limit, and the power upper limit is also changed as the frequency band of the wireless signal changes. Change with it;

The wireless transceiver device 10 transmits the wireless signal and receives at least one reflected signal, and classifies and analyzes the reflected signal according to the signal characteristic to generate an analysis result (as shown in step S7). In some embodiments, the reflected signal is based on the reflected signal. For the transmit power corresponding to the power, the reflected signal is classified, but not limited thereto. In some embodiments, the reflected signal is generated by the wireless signal being reflected by at least one physical entity, and the analysis result reflects the physical characteristics of the physical entity. ;

Switching the frequency band of the wireless signal and determining whether the first preset condition is met. If the determination result is yes, performing the subsequent steps. If the determination result is no, executing step S6 (as shown in step S8), in some embodiments. The first preset condition is that the number of times of switching the frequency band of the wireless signal is greater than the upper limit of the number of frequency band switching times, wherein the upper limit of the number of frequency band switching times is greater than or equal to one, and the upper limit of the number of frequency band switching times depends on the number of frequency bands used by the wireless communication system;

Generating a radio frequency image based on the analysis result (as shown in step S9);

The scanning direction of the wireless transceiver device 10 is switched, and it is determined whether the second preset condition is met. If the determination result is yes, the subsequent steps are performed. If the determination result is no, step S6 is performed (as shown in step S10). In an embodiment, the second preset condition is that the number of times of switching the scanning direction of the wireless transceiver device 10 is greater than the upper limit of the number of direction switching times, wherein the upper limit of the number of direction switching times is greater than or equal to zero, and the upper limit of the number of direction switching times is greater, and the physical entity is sensed and The accuracy of positioning is higher.

In some embodiments, the wireless communication method further includes the steps of: enhancing the transmit power, and determining whether the enhanced transmit power is greater than the power upper limit. If the determination is yes, performing the subsequent steps. If the determination result is no, step S7 is performed. This step can be performed between steps S7 and S8, between steps S8 and S9, between steps S9 and S10 or after step S10.

In some embodiments, before step S6, the scanning direction of the wireless transceiver device 10 is adjusted to the initial direction, and the frequency band of the wireless signal is adjusted to the initial frequency band.

Figure 9 is a flow chart of a wireless communication method according to still another preferred embodiment of the present invention. The wireless communication method of this embodiment is applied to the wireless communication system 1 shown in Fig. 1, wherein the steps similar to those in Fig. 8 are They are denoted by the same reference numerals and will not be described again. The wireless communication method shown in FIG. 9 further includes the steps of performing steps S6 to S9 and comparing the plurality of radio frequency images to generate a comparison result (as shown in step S300). ). In some embodiments, the amount of change in position of the physical entity is obtained based on the comparison.

Figure 10 is a flow chart of a wireless communication method according to still another preferred embodiment of the present invention. The wireless communication method of this embodiment is applicable to the wireless communication system 1 shown in Fig. 1, wherein the steps similar to those in Fig. 8 are They are denoted by the same reference numerals and will not be described again. However, compared with the wireless communication method shown in FIG. 8, the wireless communication method shown in FIG. 10 further includes the following steps:

Adjusting the transmit power to the upper power limit (as shown in step S11);

Randomly switching the scanning direction of the radio transceiver 10 and the frequency band of the wireless signal (as shown in step S12);

The wireless transceiver device 10 transmits the wireless signal and receives the reflected signal, and classifies and analyzes the reflected signal according to the signal characteristic to generate a simple analysis result, and generates a simple radio frequency image according to the simple analysis result (as shown in step S13), wherein The simple radio frequency image is generated under the conditions of a single transmission power, a single scanning direction, and a single wireless signal band, so the accuracy is lower than that of the radio frequency image generated in the foregoing step S9;

Comparing the simple radio frequency image and the radio frequency image to determine whether the position of the physical entity changes. If the determination result is yes, the subsequent steps are performed. If the determination result is no, step S12 is performed (as shown in step S14);

Steps S6 to S9 are performed, and a plurality of radio frequency images are compared to generate a comparison result, and a position change amount of the physical entity is obtained according to the comparison result (as shown in step S15), wherein any radio frequency image can be set to a ratio according to requirements. On the basis and store.

In summary, the present invention provides a wireless communication system and method, wherein a processing device generates a corresponding endpoint direction message and an endpoint power message according to each reference position, thereby generating a boundary message, and the processing device according to the endpoint direction message, the endpoint The power message and the boundary message control wireless transmitting device transmit the wireless signal in the corresponding transmitting direction and transmitting power, thereby limiting the transmission of the wireless signal to a specific range. In addition, the wireless communication system and method transmit a wireless signal and receive a reflected signal thereof to establish a radio frequency image, thereby identifying and locating a physical entity within a wireless signal transmission range to implement area monitoring. In addition, the wireless communication system and method can obtain the change of the physical entity in the wireless signal transmission range by comparing the radio frequency images at different time points, and obtain the moving path even through multiple position changes, which is beneficial to strengthen the area monitoring.

It should be noted that the above is only a preferred embodiment for the purpose of illustrating the present invention, and the present invention is not limited to the embodiments described above, and the scope of the present invention is determined by the scope of the patent application. Moreover, the case may be modified by those who are familiar with the technology, but it is not intended to be protected by the scope of the patent application.

1‧‧‧Wireless communication system

10‧‧‧Wireless transceiver

101‧‧‧Antenna array

102‧‧‧Wireless transmitter

20‧‧‧Processing device

201‧‧‧ Directional Control Module

202‧‧‧Power adjustment module

203‧‧‧Boundary drawing module

204‧‧‧Band Switching Module

205‧‧‧Signal Grouping Module

206‧‧‧Path Analysis Module

207‧‧‧RF image module

208‧‧‧band comparison module

209‧‧‧Image comparison module

210‧‧‧Event Judgment Module

30‧‧‧Storage device

40‧‧‧Reference location

50‧‧‧Target wireless transmission area

51‧‧‧First wireless transmission area

52‧‧‧Second wireless transmission area

61, 62, 63‧‧‧ Launch directions

64‧‧‧ wall

65‧‧‧ Items

T0, T1, T2, T3, T4, T5, T6, T7, T8‧‧‧ time

S1, S2, S3, S4, S5, S100, S6, S7, S8, S9, S10, S200, S300, S11, S12, S13, S14, S15‧‧‧ steps of the wireless communication method

FIG. 1 is a schematic diagram of a system architecture of a wireless communication system according to a preferred embodiment of the present invention.

Fig. 2 is a schematic diagram showing the system architecture of the processing apparatus shown in Fig. 1.

3A and 3B are diagrams showing the wireless communication system of Fig. 1 for limiting the transmission of wireless signals within a specific range.

Figure 4 is a schematic diagram of the actual application environment of the wireless communication system shown in Figure 1.

5A, 5B, and 5C are diagrams showing the relative positions of the radio transceiver and the physical entity in each transmission direction.

6A, 6B and 6C are diagrams showing the reflected signals received by the radio transceiver in the transmission direction shown in Fig. 5A.

Figure 7 is a flow chart of the wireless communication method of the preferred embodiment of the present invention.

Figure 8 is a flow chart of a wireless communication method in accordance with another preferred embodiment of the present invention.

Figure 9 is a flow chart of a wireless communication method according to still another preferred embodiment of the present invention.

Figure 10 is a flow chart of a wireless communication method in accordance with still another preferred embodiment of the present invention.

Claims (26)

A wireless communication system comprising: a wireless transceiver device configured to transmit a wireless signal in a transmit power and a transmit direction and to sense in a scan direction; and a processing device coupled to the wireless transceiver device Receiving at least one reference position, and comprising: a direction control module configured to control the direction of the emission and the direction of the scan, wherein the direction control module controls the scan direction and generates an end direction according to each of the reference positions a power adjustment module is configured to dynamically adjust the transmit power, wherein the power adjustment module separately adjusts the transmit power and generates an endpoint power message according to each of the reference positions and the corresponding end direction message; And a boundary drawing module, configured to receive the at least one reference location, the location of the wireless transceiver, the at least one endpoint direction message, and the at least one endpoint power message, and generate a boundary message, where the processing device The terminal according to at least one direction message, the at least one end of the message and the power control message of the boundary and the emission direction of the transmitting power to limit the transmission of the wireless signal within a particular range. The wireless communication system of claim 1, further comprising at least one boundary setting device configured to transmit a position signal, the wireless transceiver receiving the position signal and outputting to the processing device. The wireless communication system of claim 2, wherein the processing device controls the wireless transceiver to perform sensing to obtain the reference position. The wireless communication system of claim 2, wherein the position signal reflects the reference position, and the processing device obtains the reference position via the position signal. The wireless communication system of claim 1, wherein the processing device further comprises a band switching module, wherein the band switching module is configured to switch a frequency band of the wireless signal. The wireless communication system of claim 5, wherein the processing device further comprises: a signal grouping module, wherein the at least one reflected signal is received by the wireless transceiver, and the at least one reflected signal is performed according to the signal characteristic A path analysis module receives and analyzes the plurality of classified reflection signals and generates an analysis result; and a radio frequency image module receives and generates a radio frequency image according to the analysis result. The wireless communication system of claim 6, wherein the signal segmentation module classifies the at least one reflected signal according to the transmit power corresponding to the power of the reflected signal. The wireless communication system of claim 6, wherein the at least one reflected signal is generated by the wireless signal being reflected by the at least one physical entity, the analysis result reflecting physical characteristics of the at least one physical entity. The wireless communication system of claim 6, wherein the direction control module controls the wireless transceiver to transmit the wireless signal and receive the reflected signal in a plurality of directions, wherein the direction is in any one of the directions The frequency band switching module switches the wireless signal to a plurality of frequency bands, and in any one of the frequency bands, the power adjustment module controls the wireless transceiver to transmit the wireless signal by using the plurality of transmission powers. The wireless communication system of claim 9, wherein the processing device further comprises a frequency band comparison module, wherein the frequency band comparison module receives the plurality of classified reflected signals, and according to the plurality of frequency bands The plurality of reflected signals are compared to generate a comparison result, and the radio frequency image module receives and generates the radio frequency image according to the analysis result and the comparison result. The wireless communication system of claim 6, wherein the processing device further comprises: an image comparison module that receives and compares the plurality of radio frequency images generated by the radio frequency image module to Generating a comparison result; and an event judging module receives and obtains a change of the radio frequency image according to the comparison result. The wireless communication system of claim 1, further comprising a storage device coupled to the wireless transceiver device and the processing device, the storage device being configured to store and receive the wireless transceiver device and the processing device Signals and messages. The wireless communication system of claim 1, wherein the wireless transceiver comprises an antenna array and a wireless transmitting device, wherein the antenna array is configured to perform sensing, and the wireless transmitting device is configured to transmit the wireless signal . The wireless communication system of claim 13, wherein the antenna array comprises a plurality of controllable phase antennas or a plurality of directional antennas. A wireless communication method includes: (a) receiving at least one reference position; (b) controlling a scanning direction of a wireless transceiver and generating an endpoint direction message according to each of the reference positions; (c) according to each Adjusting, by the reference location and the corresponding endpoint direction message, a transmit power of the wireless transceiver to transmit a wireless signal and generating an endpoint power message; (d) according to the at least one reference location, the location of the wireless transceiver, at least Transmitting, by the endpoint direction information, the at least one endpoint power message a boundary message; and (e) controlling the wireless transceiver to transmit the at least one endpoint direction message, the at least one endpoint power message, and the boundary message A direction of transmission of the wireless signal and the transmitted power to limit transmission of the wireless signal to a specific range. The wireless communication method of claim 15, wherein in the step (a), the at least one position signal is received to obtain the reference position by the position signal, wherein the position signal reflects the reference position. The wireless communication method according to claim 15, wherein in the step (a), at least one position signal is received, and the wireless transceiver is controlled to perform sensing to obtain the reference position. The wireless communication method of claim 15, further comprising the steps of: determining whether a frequency band switching request is received, and if the determination result is yes, switching the frequency band of the wireless signal, and performing step (c). The wireless communication method of claim 15, further comprising the steps of: (f) obtaining the transmission according to the frequency band of the wireless signal, the transmission direction, the direction information of the endpoint, the power message of the endpoint, and the boundary message. a power upper limit corresponding to the direction, and adjusting the transmit power to an initial power, wherein the initial power is not greater than the power upper limit; (g) transmitting, by the wireless transceiver, the wireless signal and receiving at least one reflected signal, and according to the signal The characteristic classifies and analyzes the at least one reflected signal to generate an analysis result; (h) switches the frequency band of the wireless signal, and determines whether a first preset condition is met, and if the determination result is yes, performing a subsequent step, If the determination result is no, the step (f) is performed; (i) generating a radio frequency image according to the analysis result; and (j) switching the scanning direction, and determining whether a second preset condition is satisfied, if the determination result is If not, perform step (f), wherein the upper limit of the number of direction switches is greater than or equal to zero. The wireless communication method of claim 19, wherein in the step (g), the at least one reflected signal is classified according to the transmit power corresponding to the power of the reflected signal. The wireless communication method according to claim 19, further comprising the steps of: enhancing the transmit power, and determining whether the enhanced transmit power is greater than the power upper limit, and if the determination result is no, performing the step (g) . The wireless communication method of claim 19, wherein the first preset condition is that the number of times the frequency band of the wireless signal is switched is greater than a maximum number of frequency band switching times, wherein the upper limit of the number of frequency band switching times is greater than or equal to one. The wireless communication method of claim 19, wherein the second preset condition is that the number of times of switching the scanning direction is greater than the upper limit of the number of switching times of one direction, wherein the upper limit of the number of switching times is greater than or equal to zero. The wireless communication method according to claim 19, further comprising the steps of: performing the step (f) to the step (i), and comparing the plurality of radio frequency images to generate a comparison result. The wireless communication method of claim 19, wherein the at least one reflected signal is generated by the wireless signal being reflected by the at least one physical entity, the analysis result reflecting physical characteristics of the at least one physical entity. The wireless communication method according to claim 25, further comprising the steps of: (k) adjusting the transmission power to the upper power limit; (m) randomly switching the scanning direction and the frequency band of the wireless signal; (n) utilizing the The wireless transceiver transmits the wireless signal and receives the at least one reflected signal, and classifies and analyzes the at least one reflected signal according to the signal characteristic to generate a simple analysis result, and generates a simple radio frequency image according to the simple analysis result; o) comparing the simple radio frequency image and the radio frequency image to determine whether the position of the at least one physical entity changes, and if the determination result is yes, performing the subsequent step, and if the determination result is no, performing the step (m And (p) performing the step (f) to the step (i), and comparing the plurality of radio frequency images to generate a comparison result, and obtaining a position change amount of the at least one physical entity according to the comparison result.