A control method and device for enhancing UWB communication distance

Abstract

The present invention discloses a control method and device for enhancing UWB communication distance, including: obtaining the current power of the control device; if the current power is greater than the preset power, controlling the UWB device communication based on the first control strategy; if the current transmission power is greater than the preset power, controlling the current transmission power to adjust to the preset power, and controlling the UWB device communication based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy; if the current transmission power is less than or equal to the preset power, controlling the UWB device communication based on the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy; if the current power is less than or equal to the preset power, controlling the UWB device communication based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy. The present invention can better enhance the communication distance of the UWB device and increase the robustness of the entire communication system.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a control method and a device for enhancing UWB communication distance. Background Art

[0002] In existing communication devices based on UWB (Ultra-Wideband) device communication, the control strategy of the UWB device is often set at the factory, and the existing control strategies are all single implementations, such as single control power, single control bandwidth, etc., which results in the UWB device being unable to cope with complex communication environments, resulting in low robustness of the entire communication system. Summary of the invention

[0003] The present invention provides a control method and device for enhancing the UWB communication distance, so as to achieve better enhancement of the UWB communication distance and increase the robustness of the entire communication system.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A control method for enhancing UWB communication distance is applied to a control device for enhancing UWB communication distance, wherein the control device realizes communication based on an ultra-wideband UWB device, and comprises:

[0006] Obtaining the current power of the control device;

[0007] If the current power is greater than the preset power, the UWB device is controlled based on the first control strategy to enhance the transmission power of the UWB device and obtain the current transmission power of the UWB device; if the current transmission power is greater than the preset power, the current transmission power is controlled to be adjusted to the preset power, and the UWB device communication is controlled based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; if the current transmission power is less than or equal to the preset power, the UWB device communication is directly controlled based on the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; or,

[0008] If the current power is less than or equal to the preset power, controlling the communication of the UWB device based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device;

[0009] Among them, the first control strategy represents the adjustment of the UWB transmission power, the second control strategy represents the adjustment of the UWB receiving sensitivity, the third control strategy represents the adjustment of the UWB transmission data rate, the fourth control strategy represents the adjustment of the UWB communication bandwidth, and the fifth control strategy represents the adjustment of the UWB communication frequency.

[0010] The present invention also provides a control device for enhancing the UWB communication distance, wherein the control device realizes communication based on an ultra-wideband UWB device, and comprises:

[0011] An acquisition module, used to acquire the current power of the control device;

[0012] A first control module is used to control the UWB device based on a first control strategy to enhance the transmission power of the UWB device and obtain the current transmission power of the UWB device if the current power is greater than a preset power; if the current transmission power is greater than a preset power, control the current transmission power to be adjusted to the preset power, and control the UWB device to communicate based on a second control strategy, a third control strategy, a fourth control strategy and a fifth control strategy to enhance the communication distance of the UWB device; if the current transmission power is less than or equal to the preset power, directly control the UWB device to communicate based on the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; or,

[0013] A second control module, configured to control the communication of the UWB device based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy if the current power is less than or equal to the preset power, so as to enhance the communication distance of the UWB device;

[0014] Among them, the first control strategy represents the adjustment of the UWB transmission power, the second control strategy represents the adjustment of the UWB receiving sensitivity, the third control strategy represents the adjustment of the UWB transmission data rate, the fourth control strategy represents the adjustment of the UWB communication bandwidth, and the fifth control strategy represents the adjustment of the UWB communication frequency.

[0015] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the control method for enhancing the UWB communication distance as described in any one of the above items is implemented.

[0016] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the control method for enhancing the UWB communication distance described in any one of the above items is implemented.

[0017] The present invention also provides a computer product having a computer program stored thereon, wherein the computer program, when executed by a processor, implements any of the above-mentioned control methods for enhancing the UWB communication distance.

[0018] The embodiment of the present invention controls the communication of UWB devices by combining multiple control strategies, including a first control strategy for adjusting the transmission power of UWB, a second control strategy for adjusting the receiving sensitivity of UWB, a third control strategy for adjusting the transmission data rate of UWB, a fourth control strategy for adjusting the communication bandwidth of UWB, and a fifth control strategy for adjusting the communication frequency of UWB, so as to better enhance the communication distance of UWB devices. Therefore, UWB devices can cope with complex communication environments, so that communication can be guaranteed regardless of the environment in which the UWB devices are located, thereby increasing the robustness of the entire communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a flow chart of a control method for enhancing UWB communication distance provided by the present invention;

[0020] Figure 2 It is a schematic diagram of a scenario of a control method for enhancing UWB communication distance provided by the present invention;

[0021] Figure 3 is a schematic diagram of the priority of the switching operation provided by an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of a power switching process provided by an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of a bandwidth switching process provided by an embodiment of the present invention;

[0024] Figure 6 is a schematic diagram of a process of switching a receiving sensitivity mode provided by an embodiment of the present invention;

[0025] Figure 7 is a schematic diagram of a frequency switching process provided by an embodiment of the present invention;

[0026] Figure 8 It is a structural schematic diagram of a control device for enhancing UWB communication distance provided by the present invention;

[0027] Fig. 9 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0029] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details to obscure the description of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0031] UWB devices can be applied to wireless sensor networks, indoor positioning systems, intelligent transportation systems, remote monitoring and control, and other fields.

[0032] Wireless sensor network: The application of UWB communication technology in wireless sensor networks, such as smart home, smart city, industrial automation and other fields. By enhancing the UWB communication distance, the communication reliability and stability between sensor nodes can be improved.

[0033] Indoor positioning system: The application of UWB positioning technology in indoor positioning systems, such as indoor navigation, personnel positioning, object tracking, etc. By enhancing the UWB communication distance, the accuracy and coverage of the positioning system can be improved.

[0034] Intelligent Transportation System: The application of UWB communication technology in intelligent transportation systems, such as Internet of Vehicles, smart parking, traffic management, etc. By enhancing the UWB communication distance, the reliability and security of communication between vehicles and between vehicles and infrastructure can be improved.

[0035] Remote monitoring and control: The application of UWB communication technology in the field of remote monitoring and control, such as telemedicine, smart agriculture, environmental monitoring, etc. By enhancing the UWB communication distance, reliable monitoring and control of remote equipment can be achieved.

[0036] The control method for enhancing the UWB communication distance provided by the present invention can be flexibly adjusted according to the specific product and field requirements. For example, in a wireless sensor network, the present invention can be applied to data transmission and communication distance extension between sensor nodes; in an indoor positioning system, the present invention can be applied to enhancing the communication distance between a positioning tag and a base station; in an intelligent transportation system, the present invention can be applied to enhancing the communication distance between vehicles and between vehicles and infrastructure, etc.

[0037] It should be noted that the control method for enhancing the UWB communication distance provided by the present invention includes the following control strategies: The first control strategy represents the adjustment of the UWB transmission power. By adding a power circuit (PA) in the circuit design to adjust the transmission power, the intensity of the signal transmission can be increased, thereby enhancing the distance of the UWB communication. The second control strategy represents the adjustment of the UWB receiving sensitivity. By switching antennas with different additions at the receiving end, the receiving ability of weak signals can be improved, and the distance of the UWB communication can be enhanced. Therefore, the receiving sensitivity can be understood as modulation coding. The third control strategy represents the adjustment of the UWB transmission data rate. For some application scenarios, high-speed transmission is not necessary, so bandwidth resources can be saved by reducing the transmission data rate, and the communication distance can be increased. The fourth control strategy represents the adjustment of the UWB communication bandwidth. By adjusting the communication bandwidth, the power consumption of signal transmission can be reduced and the communication distance can be enhanced. The fifth control strategy represents the adjustment of the UWB communication frequency. By adjusting the communication frequency band (communication frequency), the signal transmission loss can be reduced, the signal penetration ability can be improved, and the UWB communication distance can be enhanced.

[0038] Reference Figure 1 , Figure 1 1 is a flow chart of a control method for enhancing UWB communication distance provided by the present invention. The method is applied to a control device for enhancing UWB communication distance. The control device realizes communication based on UWB (Ultra-Wideband) equipment, and includes steps 10 to 30:

[0039] Step 10, obtaining the current power of the control device;

[0040] Step 20, if the current power is greater than the preset power, the UWB device is controlled based on the first control strategy to adjust the transmission power of the UWB device and obtain the current transmission power of the UWB device; if the current transmission power is greater than the preset power, the current transmission power is controlled to be adjusted to the preset power, and the UWB device communication is controlled based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; if the current transmission power is less than or equal to the preset power, the UWB device communication is directly controlled based on the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; or,

[0041] Step 30: If the current power level is less than or equal to the preset power level, the UWB device communication is controlled based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device.

[0042] Optionally, the current power of the control device is obtained. The current power may be a percentage value or a specific value, such as the current power is 80%, which is 80% of the total power of the control device, such as the current power is 200 coulombs.

[0043] Optionally, it is determined whether the current power is greater than a preset power, wherein the preset power may be a percentage value or a specific value, such as 80%, 200 coulombs, and the like.

[0044] Optionally, if it is determined that the current power level is greater than the preset power level, the UWB device is controlled by a first control strategy to adjust the transmit power of the UWB device and obtain the current transmit power of the UWB device.

[0045] Furthermore, if it is determined that the current transmission power is greater than the preset power, the current transmission power is controlled to be adjusted to the preset power, and the UWB device communication is controlled based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device, wherein the preset power is determined according to the location of the UWB device, that is, the preset power is the limit value of local regulations.

[0046] Furthermore, if it is determined that the current transmission power is less than or equal to the preset power, the UWB device communication is directly controlled through the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device.

[0047] Optionally, if it is determined that the current power level is less than or equal to a preset power level, the UWB device communication is controlled by the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device.

[0048] In one embodiment, while ensuring the reliability of system data, the data transmission bandwidth of the UWB device is actively reduced, such as from 500Mhz to 110Mhz, thereby reducing power consumption and extending the transmission distance of the UWB device. Usually, UWB devices use CH (center frequency 6.4896GHz) to CH9 (center frequency 7.9872GHz), and can switch to a relatively low frequency through hardware design to obtain better wall penetration and propagation characteristics, thereby increasing the UWB data transmission distance.

[0049] The embodiment of the present invention controls the communication of UWB devices by combining multiple control strategies, including a first control strategy for adjusting the transmission power of UWB, a second control strategy for adjusting the receiving sensitivity of UWB, a third control strategy for adjusting the transmission data rate of UWB, a fourth control strategy for adjusting the communication bandwidth of UWB, and a fifth control strategy for adjusting the communication frequency of UWB, so as to better enhance the communication distance of UWB devices. Therefore, UWB devices can cope with complex communication environments, so that communication can be guaranteed regardless of the environment in which the UWB devices are located, thereby increasing the robustness of the entire communication system.

[0050] Furthermore, the control method for enhancing the UWB communication distance also includes:

[0051] Get the current communication protocol of the UWB device;

[0052] If the current power is greater than the preset power and the current communication protocol is the first communication protocol, the UWB device communication is controlled based on the first control strategy, the second control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; or,

[0053] If the current power is greater than the preset power and the current communication protocol is the second communication protocol, the UWB device communication is controlled based on the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; or,

[0054] If the current power is less than or equal to the preset power, and the current communication protocol is the second communication protocol, the UWB device communication is controlled based on the second control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; or,

[0055] If the current power level is less than or equal to the preset power level, and the current communication protocol is the first communication protocol, the UWB device communication is controlled based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device.

[0056] Optionally, the current communication protocol of the UWB device is obtained, wherein the communication protocol includes a first communication protocol and a second communication protocol, the first communication protocol characterizes that the data transmission volume is greater than a preset amount and the positioning needs to meet a preset accuracy, the second communication protocol characterizes that the data transmission volume is less than or equal to a preset amount and the positioning does not need to meet a preset accuracy, and the preset amount and preset accuracy are set according to actual conditions.

[0057] Optionally, if the current power is greater than the preset power and the current communication protocol is the first communication protocol, the UWB device communication is controlled by the first control strategy, the second control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device. If it is determined that the current power is greater than the preset power and the current communication protocol is the second communication protocol, the UWB device communication is controlled by the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device. If it is determined that the current power is less than or equal to the preset power and the current communication protocol is the second communication protocol, the UWB device communication is controlled by the second control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device. If it is determined that the current power is less than or equal to the preset power and the current communication protocol is the first communication protocol, the UWB device communication is controlled based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device.

[0058] The embodiment of the present invention controls the communication of UWB devices by combining multiple control strategies, including a first control strategy for adjusting the transmission power of UWB, a second control strategy for adjusting the receiving sensitivity of UWB, a third control strategy for adjusting the transmission data rate of UWB, a fourth control strategy for adjusting the communication bandwidth of UWB, and a fifth control strategy for adjusting the communication frequency of UWB, so as to better enhance the communication distance of UWB devices. Therefore, UWB devices can cope with complex communication environments, so that communication can be guaranteed regardless of the environment in which the UWB devices are located, thereby increasing the robustness of the entire communication system.

[0059] Furthermore, the first control strategy, the second control strategy, the fourth control strategy and the fifth control strategy have switching priorities, and the specific switching process of the first control strategy, the second control strategy, the fourth control strategy and the fifth control strategy includes the following steps:

[0060] Step 110: Obtain the receiving end signal-to-noise ratio of the current link.

[0061] by Figure 2The scenario of the control method for enhancing the UWB communication distance shown is used as an example for explanation, and the link between the central node A and the central node B is the current link. If on the current link, the central node A sends a wireless signal to the central node B, then the receiver of the central node B is the receiving end. The transmitter of the central node A is the transmitting end (the control device equipped with the UWB device). The signal-to-noise ratio of the receiving end is the signal-to-noise ratio of the receiver of the central node B. The receiver signal-to-noise ratio of the central node B is obtained by the central node B using the signal-to-noise ratio estimation algorithm to estimate the signal-to-noise ratio of the received signal.

[0062] In one embodiment, obtaining the receiving end signal-to-noise ratio of the current link means that the central node A obtains the receiver signal-to-noise ratio of the central node B through the link status frame sent by the central node B.

[0063] In one embodiment, obtaining the receiving end signal-to-noise ratio of the current link means that the central node B estimates the signal-to-noise ratio of the received signal using a signal-to-noise ratio estimation algorithm.

[0064] Step 120: determine whether the communication status of the current link meets the transmission requirement according to the signal-to-noise ratio of the receiving end.

[0065] Specifically, according to the signal-to-noise ratio of the receiving end, it is determined whether the communication state of the current link meets the transmission requirements, including: when the signal-to-noise ratio of the receiving end is greater than or equal to the demodulation threshold, it is determined that the communication state of the current link meets the transmission requirements; when the signal-to-noise ratio of the receiving end is less than the demodulation threshold, it is determined that the communication state of the current link does not meet the transmission requirements.

[0066] In one embodiment, the central node A determines whether the current link meets the transmission requirement according to the demodulation threshold and the receiver signal-to-noise ratio reported by the central node B.

[0067] The demodulation threshold refers to the demodulation threshold of the receiver. The demodulation threshold of the receiver is obtained by adding the theoretical signal-to-noise ratio value under a certain bit error rate to the demodulation loss of the receiver, that is, demodulation threshold = theoretical signal-to-noise ratio value + demodulation loss. When the actual signal-to-noise ratio of the receiver is less than the demodulation threshold, it means that the communication status of the current link does not meet the transmission requirements and a switching operation needs to be performed. When the actual signal-to-noise ratio of the receiver is greater than or equal to the demodulation threshold, it means that the communication status of the current link meets the transmission requirements and no switching operation needs to be performed.

[0068] Step 130: When the communication state of the current link does not meet the transmission requirement, perform a first switching operation.

[0069] The embodiment of the present invention provides four switching operations, namely power switching, bandwidth switching, receiving sensitivity mode switching, and frequency switching.

[0070] Figure 3Schematic diagram of the priority of switching operations provided by an embodiment of the present invention. According to the switching complexity and the impact of the switching operation, the above four switching operations are prioritized, and the priorities from high to low are: power switching, bandwidth switching, receiving sensitivity mode switching and frequency switching.

[0071] When the signal-to-noise ratio at the receiving end is less than the demodulation threshold, a switching operation with a high priority is preferentially performed, that is, the first switching operation, that is, power switching, is performed.

[0072] Step 140, after the first switching operation is completed, the receiving end signal-to-noise ratio of the current link is obtained again, and according to the receiving end signal-to-noise ratio, it is determined whether the communication state of the current link meets the transmission requirement.

[0073] After the first switching operation is completed, the receiving end signal-to-noise ratio of the current link is obtained again, and based on the receiving end signal-to-noise ratio, it is determined whether the communication state of the current link meets the transmission requirements. If the communication state of the current link meets the transmission requirements, there is no need to perform the switching operation, and the process jumps back to the step of obtaining the receiving end signal-to-noise ratio.

[0074] Step 150, if the communication state of the current link still does not meet the transmission requirement, then perform the next round of first switching operation until the communication state of the current link meets the transmission requirement, or, if the switching parameters corresponding to the first switching operation can no longer be adjusted, perform the second switching operation;

[0075] It can be understood that if the communication status of the current link still does not meet the transmission requirements, the next round of first switching operation will be performed until the communication status of the current link meets the transmission requirements, or, the next round of first switching operation will continue until the switching parameters corresponding to the first switching operation can no longer be adjusted, and the second switching operation will be performed, and the priority of the second switching operation is lower than the priority of the first switching operation.

[0076] The embodiment of the present invention determines whether the communication state of the current link meets the transmission requirements by obtaining the signal-to-noise ratio of the receiving end of the current link. When the communication state of the current link does not meet the transmission requirements, a first switching operation is performed. After the first switching operation is completed, the signal-to-noise ratio of the receiving end of the current link is obtained again. If the communication state of the current link still does not meet the transmission requirements, the next round of the first switching operation is performed until the communication state of the current link meets the transmission requirements. Alternatively, if the switching parameter corresponding to the first switching operation can no longer be adjusted, a second switching operation with a lower priority is performed. The switching of multiple parameters can be realized to adapt to a more complex link environment. By setting the priority of the switching operation, the complex communication environment can be adapted at a lower switching cost, thereby increasing the robustness of the communication system.

[0077] In some embodiments, the first switching operation is a power switching operation;

[0078] Performing a first switching operation, comprising:

[0079] Determine the transmit power adjustment value of the UWB device according to the signal-to-noise ratio of the receiving end, the current transmit power of the UWB device and the demodulation threshold;

[0080] Determine whether the transmission power adjustment value exceeds the maximum adjustable power value of the UWB device;

[0081] If the transmission power adjustment value does not exceed the maximum adjustable power value of the UWB device, the transmission power of the UWB device is adjusted according to the transmission power adjustment value of the UWB device.

[0082] It can be understood that, when the communication state of the current link does not meet the transmission requirement, the first switching operation, ie, the power switching operation, is performed to adjust the transmission power of the UWB device.

[0083] Figure 4 A schematic diagram of a power switching process provided by an embodiment of the present invention.

[0084] Specifically, firstly, the transmit power adjustment value of the UWB device is calculated according to the signal-to-noise ratio of the receiving end, the current transmit power of the UWB device and the demodulation threshold.

[0085] The transmit power adjustment value of the UWB device can be calculated using the following formula:

[0086] Transmit power adjustment value = demodulation threshold - receiving end signal-to-noise ratio + current transmit power of the UWB device.

[0087] Further, determining whether the transmission power adjustment value exceeds the maximum adjustable power value of the UWB device;

[0088] If the transmit power adjustment value does not exceed the maximum adjustable power value of the UWB device, the transmit power of the UWB device is adjusted according to the transmit power adjustment value of the UWB device.

[0089] If the transmit power adjustment value exceeds the maximum adjustable power value of the UWB device, it means that the power switching can no longer be performed. Then the transmit power of the UWB device is switched to the maximum adjustable value, and the bandwidth switching operation is performed. Figure 2For example, central node A sends a wireless signal to central node B, then the transmitter of central node A is the UWB device, and the receiver of central node B is the receiving end. The signal-to-noise ratio of the receiving end is the signal-to-noise ratio of the receiver of central node B. The current transmission power of the UWB device is the current transmission power of the transmitter of central node A. Central node A calculates the transmission power adjustment value of the transmitter of central node A based on the receiving end signal-to-noise ratio reported by central node B, the current transmission power of the transmitter of central node A, and the demodulation threshold of the receiver of central node B. If the transmission power adjustment value does not exceed the maximum adjustable power value of the UWB device, central node A performs power switching based on the transmission power adjustment value of the UWB device. It should be noted that when the transmission power of the transmitter is not continuously adjustable, it is necessary to select the minimum adjustable value that is greater than the above transmission power adjustment value.

[0090] The embodiment of the present invention determines whether the communication state of the current link meets the transmission requirements by acquiring the signal-to-noise ratio of the receiving end of the current link. When the communication state of the current link does not meet the transmission requirements, the transmission power adjustment value of the UWB device is determined according to the signal-to-noise ratio of the receiving end, the current transmission power of the UWB device and the demodulation threshold; if the transmission power adjustment value does not exceed the maximum adjustable power value of the UWB device, the transmission power of the UWB device is adjusted according to the transmission power adjustment value of the UWB device, thereby realizing power switching, being able to adapt to complex communication environments at a lower switching cost, and increasing the robustness of the communication system.

[0091] In some embodiments, the second switching operation is a bandwidth switching operation.

[0092] If the switching parameter corresponding to the first switching operation cannot be adjusted any more, performing a second switching operation includes:

[0093] If the transmission power adjustment value exceeds the maximum adjustable power value of the UWB device, the transmission power of the UWB device is switched to the adjustable maximum value, and a bandwidth switching operation is performed.

[0094] It is understandable that if the transmit power adjustment value exceeds the maximum adjustable power value of the UWB device, it means that power switching can no longer be performed. Then, after the transmit power of the UWB device is switched to the adjustable maximum value, the bandwidth switching operation is performed.

[0095] In one embodiment, central node A first switches the transmission power of the transmitter to an adjustable maximum value, then enters the bandwidth switching operation process, and sets the maximum power field and the transmission link quality field in the link status frame to be sent to central node B to 1.

[0096] Perform bandwidth switching operations, including:

[0097] Get the receiving end signal-to-noise ratio of the current link;

[0098] According to the signal-to-noise ratio at the receiving end, determine whether the communication status of the current link meets the transmission requirements;

[0099] When the communication status of the current link does not meet the transmission requirements, the target applicable bandwidth is determined according to the receiving end signal-to-noise ratio, demodulation threshold and current bandwidth;

[0100] When the target applicable bandwidth is less than the limit bandwidth, the bandwidth of the current link is adjusted according to the target applicable bandwidth. Figure 5 A schematic diagram of a bandwidth switching process provided by an embodiment of the present invention. Figure 5 The execution subject can be Figure 2 The central node B in the central node A. The central node B identifies the link status frame sent by the central node A, determines whether the value of the maximum power field and the transmission link quality field in the link status frame is 1, and if it is 1, determines to perform bandwidth switching.

[0101] Then, the central node B estimates the signal-to-noise ratio of the receiving end. Specifically, it estimates the signal-to-noise ratio of the received signal using a signal-to-noise ratio estimation algorithm to obtain the signal-to-noise ratio of the receiving end of the current link.

[0102] The central node B determines whether the communication status of the current link meets the transmission requirements based on the receiving end signal-to-noise ratio. Specifically, the receiving end signal-to-noise ratio is compared with the demodulation threshold. If the receiving end signal-to-noise ratio is greater than or equal to the demodulation threshold, there is no need to continue switching and the process ends.

[0103] If the signal-to-noise ratio at the receiving end is less than the demodulation threshold, it is determined to perform bandwidth switching. Before performing bandwidth switching, the target applicable bandwidth needs to be calculated.

[0104] Specifically, the target applicable bandwidth is determined according to the signal-to-noise ratio, the demodulation threshold and the current bandwidth at the receiving end.

[0105] The formula for calculating the target applicable bandwidth is as follows:

[0106] Current received signal-to-noise ratio + 10*log10 (current bandwidth) = demodulation threshold + 10*log10 (applicable bandwidth).

[0107] The derivation process of the above formula is as follows:

[0108] The carrier-to-noise ratio represents the ratio between carrier power and noise power. For a communication system with fixed transmission power and fixed transmission channel, the carrier-to-noise ratio remains constant. The calculation relationship between the carrier-to-noise ratio (in dB) and the signal-to-noise ratio (in dB) is as follows: carrier-to-noise ratio = signal-to-noise ratio + 10*log10 (bandwidth). After calculating the carrier-to-noise ratio, the signal-to-noise ratio is replaced by the demodulation threshold to obtain the calculation formula for the applicable bandwidth.

[0109] It should be noted that if the bandwidth is non-continuously adjustable, a maximum adjustable bandwidth that is smaller than the calculated bandwidth needs to be selected as the applicable bandwidth.

[0110] It is determined whether the calculated target applicable bandwidth is less than the limit bandwidth. If it is less than the limit bandwidth, the bandwidth of the current link is adjusted to the target applicable bandwidth.

[0111] If the calculated target applicable bandwidth is greater than or equal to the limit bandwidth, it means that the bandwidth cannot be adjusted further, and a switching operation with a lower priority than bandwidth switching is entered.

[0112] It should be noted that the bandwidth switching operation provided in the embodiment of the present invention may also be performed by the central node A. The central node A obtains the target applicable bandwidth by interacting with the central node B and adjusts the current bandwidth to the target applicable bandwidth.

[0113] The embodiment of the present invention determines whether the communication state of the current link meets the transmission requirements by acquiring the signal-to-noise ratio of the receiving end of the current link. When the communication state of the current link does not meet the transmission requirements, the transmission power adjustment value of the UWB device is determined according to the signal-to-noise ratio of the receiving end, the current transmission power of the UWB device and the demodulation threshold. If the transmission power adjustment value exceeds the maximum adjustable power value of the UWB device, the transmission power of the transmitter is switched to the adjustable maximum value, and then the bandwidth switching operation process is entered. According to the signal-to-noise ratio of the receiving end, the demodulation threshold and the current bandwidth, the target applicable bandwidth is determined. When the target applicable bandwidth is less than the limit bandwidth, the bandwidth of the current link is adjusted according to the target applicable bandwidth. When the power switching still cannot meet the link transmission requirements, the bandwidth switching operation is performed. The complex communication environment can be adapted at a lower switching cost, thereby increasing the robustness of the communication system.

[0114] In some embodiments, the control method for enhancing the UWB communication distance further includes:

[0115] After the second switching operation is completed, the receiving end signal-to-noise ratio of the current link is obtained, and according to the receiving end signal-to-noise ratio, whether the communication state of the current link meets the transmission requirement is determined;

[0116] If the communication state of the current link still does not meet the transmission requirements, the next round of second switching operation is performed until the communication state of the current link meets the transmission requirements, or if the switching parameters corresponding to the second switching operation can no longer be adjusted, a third switching operation is performed;

[0117] The priority of the third switching operation is lower than the priority of the second switching operation.

[0118] It is understandable that after the current bandwidth switching operation is performed, the process jumps to the signal-to-noise ratio estimation step, that is, obtaining the receiving end signal-to-noise ratio of the current link, and judging whether the communication state of the current link meets the transmission requirement according to the receiving end signal-to-noise ratio.

[0119] If the communication state of the current link still does not meet the transmission requirements, the next round of bandwidth switching operation is performed until the communication state of the current link meets the transmission requirements.

[0120] The switching parameter corresponding to the second switching operation is, that is, the target applicable bandwidth corresponding to the bandwidth switching operation.

[0121] If the calculated target applicable bandwidth is greater than or equal to the limit bandwidth, it means that the bandwidth cannot be adjusted further, and a switching operation with a lower priority than bandwidth switching is entered, that is, the third switching operation is executed.

[0122] In the case where bandwidth switching still cannot meet the link transmission requirement, the embodiment of the present invention performs the third switching operation, which can adapt to complex communication environments at a lower switching cost and increase the robustness of the communication system.

[0123] In some embodiments, the third switching operation is a receiving sensitivity mode switching operation, and the receiving sensitivity mode switching operation can be understood as a modulation and coding mode switching operation.

[0124] If the switching parameter corresponding to the second switching operation cannot be adjusted any more, performing a third switching operation includes:

[0125] If the target applicable bandwidth is greater than or equal to the limit bandwidth, the receiving sensitivity mode switching operation is performed;

[0126] Execute the receiving sensitivity mode switching operation, including:

[0127] Get the receiving end signal-to-noise ratio of the current link;

[0128] According to the signal-to-noise ratio at the receiving end, determine whether the communication status of the current link meets the transmission requirements;

[0129] When the communication state of the current link does not meet the transmission requirements, the target receiving sensitivity mode corresponding to the maximum demodulation threshold less than or equal to the current receiver signal-to-noise ratio is obtained by looking up the table;

[0130] Adjust the current receiving sensitivity mode to the target receiving sensitivity mode.

[0131] Figure 6 A schematic diagram of a process for switching a receiving sensitivity mode provided in an embodiment of the present invention. Figure 6 The execution subject can be Figure 2 The central node B in.

[0132] The central node B estimates the signal-to-noise ratio of the receiving end. Specifically, it uses the signal-to-noise ratio estimation algorithm to estimate the signal-to-noise ratio of the received signal to obtain the signal-to-noise ratio of the receiving end of the current link. The central node B determines whether the communication state of the current link meets the transmission requirements based on the signal-to-noise ratio of the receiving end. Specifically, it compares the signal-to-noise ratio of the receiving end with the demodulation threshold. If the signal-to-noise ratio of the receiving end is greater than or equal to the demodulation threshold, there is no need to continue switching and the process ends.

[0133] If the communication status of the current link does not meet the transmission requirements, the central node B determines whether there is a suitable receiving sensitivity mode by looking up the table, that is, obtaining the target receiving sensitivity mode corresponding to the maximum demodulation threshold that is less than or equal to the current receiver signal-to-noise ratio. Among them, the table queried by the central node B is the corresponding table of receiving sensitivity mode type and demodulation threshold, which includes the corresponding relationships among modulation mode, coding mode, coding efficiency, demodulation threshold, etc., as shown in Table 1.

[0134] Table 1 Correspondence between receiving sensitivity mode type and demodulation threshold

[0135]

[0136]

[0137] If the central node B determines through table lookup that there is a suitable receiving sensitivity mode, that is, obtains the modulation mode and coding mode (that is, the target receiving sensitivity mode) corresponding to the maximum demodulation threshold that is less than or equal to the current receiver signal-to-noise ratio, then the central node B adjusts the current receiving sensitivity mode to the target receiving sensitivity mode. It should be noted that the receiving sensitivity mode switching operation provided in the embodiment of the present invention can also be performed by the central node A, which obtains the target receiving sensitivity mode by interacting with the central node B and adjusts the current receiving sensitivity mode to the target receiving sensitivity mode.

[0138] In the case where bandwidth switching still cannot meet the link transmission requirements, the embodiment of the present invention performs a receiving sensitivity mode switching operation, which can adapt to complex communication environments at a lower switching cost and increase the robustness of the communication system.

[0139] In some embodiments, the control method for enhancing the UWB communication distance further includes:

[0140] After the third switching operation is completed, obtaining a receiving end signal-to-noise ratio of the current link, and judging whether the communication state of the current link meets the transmission requirement according to the receiving end signal-to-noise ratio;

[0141] If the communication state of the current link still does not meet the transmission requirements, the next round of third switching operation is performed until the communication state of the current link meets the transmission requirements, or if the switching parameters corresponding to the third switching operation can no longer be adjusted, a fourth switching operation is performed;

[0142] The priority of the fourth switching operation is lower than the priority of the third switching operation.

[0143] It can be understood that after the current receiving sensitivity mode switching operation is performed, the process jumps to the signal-to-noise ratio estimation step and waits for the next round of operations to be performed.

[0144] The switching parameter corresponding to the third switching operation is the target receiving sensitivity mode corresponding to the receiving sensitivity mode switching operation. It should be noted that if the central node B fails to find a suitable receiving sensitivity mode by looking up the table, that is, there is no modulation mode and coding mode corresponding to the maximum demodulation threshold that is less than or equal to the current receiver signal-to-noise ratio, it means that the switching parameter corresponding to the third switching operation can no longer be adjusted, and jumps to the next switching operation with a lower priority, that is, executes the fourth switching operation.

[0145] In some embodiments, the fourth switching operation is a frequency switching operation,

[0146] If the switching parameter corresponding to the third switching operation cannot be adjusted any more, performing a fourth switching operation includes:

[0147] If the target receiving sensitivity mode corresponding to the maximum demodulation threshold less than or equal to the current receiver signal-to-noise ratio is not found, the frequency switching operation is performed;

[0148] Perform frequency switching operations, including:

[0149] Determine whether a link sensing module is provided;

[0150] If equipped with a link sensing module, the link sensing module senses spectrum holes and switches the signal frequency to the spectrum hole frequency point;

[0151] If the link sensing module is not equipped, the frequency band is divided, and the frequency band is polled and switched according to the frequency band division result.

[0152] Figure 7 A schematic diagram of a frequency switching process provided by an embodiment of the present invention. Figure 7 The execution subject can be Figure 2 The central node B in. Figure 7The link sensing module in is a separate hardware module optional for communication equipment. It can perform spectrum analysis and detection on signals within the receiving frequency range of the receiver, analyze the power value of the frequency points in each frequency band in real time, and find the frequency band with the least noise interference in the entire frequency band. If the central node B is equipped with a link sensing module, the link sensing module is used to sense the spectrum holes and switch the signal frequency to the spectrum hole frequency points; wherein, the spectrum hole refers to a frequency band whose frequency band range is greater than or equal to the communication bandwidth and there are no other noise interference signals in the frequency band. If the central node B is not equipped with a link sensing module, the frequency band is divided, and the frequency band is polled and switched according to the frequency band division results. Among them, the frequency band division is measured by the communication bandwidth as the interval, and the receiving frequency band is divided into several adjacent equally spaced frequency bands.

[0153] Polling switching means switching the communication signal to an adjacent frequency band in increasing frequency according to the frequency band division results. When the working frequency band is already the highest frequency band, it switches again from the lowest frequency band of the communication equipment.

[0154] After the switching is completed, the signal-to-noise ratio is estimated, and then a judgment is made. When the receiver signal-to-noise ratio is greater than or equal to the demodulation threshold or all frequency bands are polled, the switching operation is terminated; otherwise, jump to the initial stage to continue the switching operation. It should be noted that the frequency switching operation provided in the embodiment of the present invention can also be performed by the central node A, which obtains the spectrum hole by interacting with the central node B and switches the signal frequency to the spectrum hole frequency point; or, the central node A obtains the frequency band division result by interacting with the central node B and performs frequency band polling switching.

[0155] In the embodiment of the present invention, when the receiving sensitivity mode switching operation still cannot meet the link transmission requirement, a frequency switching operation is performed.

[0156] In some embodiments, the control method for enhancing the UWB communication distance further includes:

[0157] After the fourth switching operation is completed, obtaining a receiving end signal-to-noise ratio of the current link, and judging whether the communication state of the current link meets the transmission requirement according to the receiving end signal-to-noise ratio;

[0158] If the communication state of the current link still does not meet the transmission requirement, the next round of fourth switching operation is performed until the communication state of the current link meets the transmission requirement, or until the switching parameter corresponding to the fourth switching operation can no longer be adjusted.

[0159] Here, the switching parameters corresponding to the fourth switching operation cannot be adjusted any more, which specifically means that all frequency bands have been polled.

[0160] When the communication status of the current link cannot meet the transmission requirements, the embodiment of the present invention executes power switching, bandwidth switching, receiving sensitivity mode switching and frequency switching in order of priority, thereby realizing the switching of multiple parameters and being able to adapt to more complex link environments. By setting priorities, the system robustness is increased while reducing the switching complexity and impact.

[0161] The control device for enhancing the UWB communication distance provided by the present invention is described below. The control device for enhancing the UWB communication distance described below and the control method for enhancing the UWB communication distance described above can be referred to each other.

[0162] Figure 8 A schematic diagram of the structure of a control device for enhancing UWB communication distance provided by an embodiment of the present invention is shown in FIG. Figure 8 As shown, the control device for enhancing the UWB communication distance provided by the embodiment of the present invention includes:

[0163] An acquisition module 801 is used to acquire the current power of the control device;

[0164] The first control module 802 is used to control the UWB device based on the first control strategy to adjust the transmission power of the UWB device and obtain the current transmission power of the UWB device if the current power is greater than the preset power; if the current transmission power is greater than the preset power, control the current transmission power to be adjusted to the preset power, and control the communication of the UWB device based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; if the current transmission power is less than or equal to the preset power, directly control the communication of the UWB device based on the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; or,

[0165] The second control module 803 is used to control the communication of the UWB device based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy if the current power is less than or equal to the preset power, so as to enhance the communication distance of the UWB device;

[0166] Among them, the first control strategy represents the adjustment of the UWB transmission power, the second control strategy represents the adjustment of the UWB receiving sensitivity, the third control strategy represents the adjustment of the UWB transmission data rate, the fourth control strategy represents the adjustment of the UWB communication bandwidth, and the fifth control strategy represents the adjustment of the UWB communication frequency.

[0167] The embodiment of the present invention controls the communication of UWB devices by combining multiple control strategies, including a first control strategy for adjusting the transmission power of UWB, a second control strategy for adjusting the receiving sensitivity of UWB, a third control strategy for adjusting the transmission data rate of UWB, a fourth control strategy for adjusting the communication bandwidth of UWB, and a fifth control strategy for adjusting the communication frequency of UWB, so as to better enhance the communication distance of UWB devices. Therefore, UWB devices can cope with complex communication environments, so that communication can be guaranteed regardless of the environment in which the UWB devices are located, thereby increasing the robustness of the entire communication system.

[0168] See also Fig. 9 , Fig. 9 Schematic diagram of an embodiment of the electronic device provided by the present invention. Fig. 9 As shown, an embodiment of the present invention provides an electronic device 900, including a memory 910, a processor 920, and a computer program 911 stored in the memory 910 and executable on the processor 920. When the processor 920 executes the computer program 911, the following steps are implemented:

[0169] Get the current power of the control device;

[0170] If the current power is greater than the preset power, the UWB device is controlled based on the first control strategy to adjust the transmission power of the UWB device and obtain the current transmission power of the UWB device; if the current transmission power is greater than the preset power, the current transmission power is controlled to be adjusted to the preset power, and the UWB device communication is controlled based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; if the current transmission power is less than or equal to the preset power, the UWB device communication is directly controlled based on the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; or,

[0171] If the current power is less than or equal to the preset power, the UWB device communication is controlled based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device;

[0172] Among them, the first control strategy represents the adjustment of the UWB transmission power, the second control strategy represents the adjustment of the UWB receiving sensitivity, the third control strategy represents the adjustment of the UWB transmission data rate, the fourth control strategy represents the adjustment of the UWB communication bandwidth, and the fifth control strategy represents the adjustment of the UWB communication frequency.

[0173] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0174] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0175] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (apparatus), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0176] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0177] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0178] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0179] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A control method for enhancing UWB communication distance, characterized in that: A control device for enhancing UWB communication distance, wherein the control device realizes communication based on an ultra-wideband UWB device, comprising: Obtaining the current power of the control device; If the current power is greater than the preset power, the UWB device is controlled based on the first control strategy to enhance the transmission power of the UWB device and obtain the current transmission power of the UWB device; if the current transmission power is greater than the preset power, the current transmission power is controlled to be adjusted to the preset power, and the UWB device communication is controlled based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; if the current transmission power is less than or equal to the preset power, the UWB device communication is directly controlled based on the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; or, If the current power is less than or equal to the preset power, controlling the communication of the UWB device based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; Among them, the first control strategy represents the adjustment of the UWB transmission power, the second control strategy represents the adjustment of the UWB receiving sensitivity, the third control strategy represents the adjustment of the UWB transmission data rate, the fourth control strategy represents the adjustment of the UWB communication bandwidth, and the fifth control strategy represents the adjustment of the UWB communication frequency.

2. The control method for enhancing UWB communication distance according to claim 1, characterized in that: The control method for enhancing the UWB communication distance further includes: Obtaining the current communication protocol of the UWB device; If the current power is greater than the preset power, and the current communication protocol is the first communication protocol, the UWB device communication is controlled based on the first control strategy, the second control strategy, the fourth control strategy, and the fifth control strategy to enhance the communication distance of the UWB device; the first communication protocol indicates that the data transmission amount is greater than the preset amount and the positioning needs to meet the preset accuracy; or, If the current power is greater than the preset power, and the current communication protocol is the second communication protocol, the UWB device communication is controlled based on the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; the second communication protocol indicates that the data transmission amount is less than or equal to the preset amount and the positioning does not need to meet the preset accuracy; or, If the current power is less than or equal to the preset power, and the current communication protocol is the second communication protocol, then controlling the communication of the UWB device based on the second control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; or, If the current power level is less than or equal to the preset power level, and the current communication protocol is the first communication protocol, the UWB device communication is controlled based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device.

3. The control method for enhancing UWB communication distance according to claim 1, characterized in that: The first control strategy, the second control strategy, the fourth control strategy and the fifth control strategy have switching priorities, and the specific switching process of the first control strategy, the second control strategy, the fourth control strategy and the fifth control strategy includes the following steps: Get the receiving end signal-to-noise ratio of the current link; According to the receiving end signal-to-noise ratio, determining whether the communication state of the current link meets the transmission requirements; When the communication state of the current link does not meet the transmission requirement, performing a first switching operation; After the first switching operation is completed, obtaining the receiving end signal-to-noise ratio of the current link again, and judging whether the communication state of the current link meets the transmission requirement according to the receiving end signal-to-noise ratio; If the communication state of the current link still does not meet the transmission requirements, perform the next round of first switching operation until the communication state of the current link meets the transmission requirements, or, if the switching parameters corresponding to the first switching operation can no longer be adjusted, perform the second switching operation; The priority of the second switching operation is lower than the priority of the first switching operation.

4. The control method for enhancing UWB communication distance according to claim 3, characterized in that: The first switching operation is a power switching operation; The performing of the first switching operation comprises: Determining a transmit power adjustment value of the UWB device according to the receiving end signal-to-noise ratio, the current transmit power of the UWB device, and a demodulation threshold; Determining whether the transmit power adjustment value exceeds the maximum adjustable power value of the UWB device; If the transmission power adjustment value does not exceed the maximum adjustable power value of the UWB device, the transmission power of the UWB device is adjusted according to the transmission power adjustment value of the UWB device.

5. The control method for enhancing UWB communication distance according to claim 4, characterized in that: The second switching operation is a bandwidth switching operation, If the switching parameter corresponding to the first switching operation can no longer be adjusted, performing a second switching operation includes: If the transmit power adjustment value exceeds the maximum adjustable power value of the UWB device, the transmit power of the UWB device is switched to the adjustable maximum value, and a bandwidth switching operation is performed; The performing of the bandwidth switching operation includes: Get the receiving end signal-to-noise ratio of the current link; According to the receiving end signal-to-noise ratio, determining whether the communication state of the current link meets the transmission requirements; When the communication state of the current link does not meet the transmission requirement, determining a target applicable bandwidth according to the receiving end signal-to-noise ratio, a demodulation threshold and a current bandwidth; When the target applicable bandwidth is less than the limit bandwidth, the bandwidth of the current link is adjusted according to the target applicable bandwidth.

6. The control method for enhancing UWB communication distance according to claim 5, characterized in that: The method further comprises: After the second switching operation is completed, obtaining a receiving end signal-to-noise ratio of the current link, and judging whether the communication state of the current link meets the transmission requirement according to the receiving end signal-to-noise ratio; If the communication state of the current link still does not meet the transmission requirements, perform the next round of second switching operation until the communication state of the current link meets the transmission requirements, or, if the switching parameters corresponding to the second switching operation can no longer be adjusted, perform a third switching operation; The priority of the third switching operation is lower than the priority of the second switching operation.

7. The control method for enhancing UWB communication distance according to claim 6, characterized in that: The third switching operation is a receiving sensitivity mode switching operation, If the switching parameter corresponding to the second switching operation can no longer be adjusted, performing a third switching operation includes: If the target applicable bandwidth is greater than or equal to the limit bandwidth, performing a receiving sensitivity mode switching operation; The performing of the receiving sensitivity mode switching operation includes: Get the receiving end signal-to-noise ratio of the current link; According to the receiving end signal-to-noise ratio, determining whether the communication state of the current link meets the transmission requirements; When the communication state of the current link does not meet the transmission requirement, a target receiving sensitivity mode corresponding to a maximum demodulation threshold that is less than or equal to the current receiver signal-to-noise ratio is obtained by looking up a table; The current receiving sensitivity mode is adjusted to the target receiving sensitivity mode.

8. The control method for enhancing UWB communication distance according to claim 7, characterized in that: The method further comprises: After the third switching operation is completed, obtaining a receiving end signal-to-noise ratio of the current link, and judging whether the communication state of the current link meets the transmission requirement according to the receiving end signal-to-noise ratio; If the communication state of the current link still does not meet the transmission requirements, perform the next round of third switching operation until the communication state of the current link meets the transmission requirements, or, if the switching parameters corresponding to the third switching operation can no longer be adjusted, perform a fourth switching operation; The priority of the fourth switching operation is lower than the priority of the third switching operation.

9. The control method for enhancing UWB communication distance according to claim 8, characterized in that: The fourth switching operation is a frequency switching operation, If the switching parameter corresponding to the third switching operation can no longer be adjusted, performing a fourth switching operation includes: If the target receiving sensitivity mode corresponding to the maximum demodulation threshold less than or equal to the current receiver signal-to-noise ratio is not found, the frequency switching operation is performed; The performing frequency switching operation includes: Determine whether a link sensing module is provided; If the link sensing module is provided, the link sensing module senses spectrum holes and switches the signal frequency to the spectrum hole frequency point; If the link sensing module is not equipped, frequency band division is performed, and frequency band polling switching is performed according to the frequency band division result; After the fourth switching operation is completed, obtaining a receiving end signal-to-noise ratio of the current link, and judging whether the communication state of the current link meets the transmission requirement according to the receiving end signal-to-noise ratio; If the communication state of the current link still does not meet the transmission requirement, the next round of fourth switching operation is performed until the communication state of the current link meets the transmission requirement, or until the switching parameters corresponding to the fourth switching operation can no longer be adjusted.

10. A control device for enhancing UWB communication distance, characterized in that: The control device realizes communication based on ultra-wideband (UWB) equipment, including: An acquisition module, used to acquire the current power of the control device; A first control module is used to control the UWB device based on a first control strategy to enhance the transmission power of the UWB device and obtain the current transmission power of the UWB device if the current power is greater than a preset power; if the current transmission power is greater than a preset power, control the current transmission power to be adjusted to the preset power, and control the UWB device to communicate based on a second control strategy, a third control strategy, a fourth control strategy and a fifth control strategy to enhance the communication distance of the UWB device; if the current transmission power is less than or equal to the preset power, directly control the UWB device to communicate based on the first control strategy, the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy to enhance the communication distance of the UWB device; or, A second control module, configured to control the communication of the UWB device based on the second control strategy, the third control strategy, the fourth control strategy and the fifth control strategy if the current power is less than or equal to the preset power, so as to enhance the communication distance of the UWB device; Among them, the first control strategy represents the adjustment of the UWB transmission power, the second control strategy represents the adjustment of the UWB receiving sensitivity, the third control strategy represents the adjustment of the UWB transmission data rate, the fourth control strategy represents the adjustment of the UWB communication bandwidth, and the fifth control strategy represents the adjustment of the UWB communication frequency.

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