CN116008973A - Ultra-wideband equipment ranging method and electronic equipment - Google Patents
Ultra-wideband equipment ranging method and electronic equipment Download PDFInfo
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Abstract
The invention provides a distance measuring method based on ultra-wideband equipment, which is applied to electronic equipment and comprises the following steps: step one: detecting RSSI values of all antennas in ultra-wideband equipment respectively, comparing the RSSI values, and determining the maximum value of the RSSI values of all the antennas; step two: comparing the maximum value with a preset threshold value, and setting the antenna corresponding to the maximum value as an independent detection antenna when the maximum value is larger than the preset threshold value; step three: detecting the distance through an independent detection antenna; otherwise, step four: when the maximum value is not greater than a preset threshold value, setting the antennas with the preset number before the RSSI value sequencing in the antennas as combined detection antennas; step five: distance detection is performed by combining the detection antennas. By utilizing the invention, the distance measurement distance and the distance measurement precision can be improved while the power consumption is saved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an ultra-wideband equipment ranging method and electronic equipment.
Background
Currently, UWB (Ultra Wide Band) devices are increasingly widely used in positioning applications of consumer products, and as UWB products need to support functions such as positioning ranging and angle measurement, multiple receiving antennas or transmitting antennas are usually set.
In the existing UWB product, only one fixed antenna is usually used when the ranging function is implemented, and multiple antennas are used when the Angle measuring function is implemented, for example, two antennas are needed to implement 2DAOA (Angle of Arrival Angle ranging), and three antennas are needed to implement 3 DAOA.
It can be known that, because only one fixed antenna is selected during ranging, when the antenna is affected by external influence (such as handheld influence) or damage occurs, the communication distance of the UWB signal is affected, and meanwhile, the ranging accuracy of the UWB product is low, so that the user experience is affected.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a ranging method for ultra-wideband equipment and a preparation method thereof, so as to solve the problems of low accuracy, limited detection distance, influence on user experience and the like of the existing ranging method in which a fixed antenna is selected for ranging.
The invention provides a ranging method based on ultra-wideband equipment, which is applied to electronic equipment and comprises the following steps: step one: detecting RSSI values of all antennas in ultra-wideband equipment respectively, comparing the RSSI values, and determining the maximum value of the RSSI values of all the antennas; step two: comparing the maximum value with a preset threshold value, and setting the antenna corresponding to the maximum value as an independent detection antenna when the maximum value is larger than the preset threshold value; step three: detecting the distance through an independent detection antenna; otherwise, step four: when the maximum value is not greater than a preset threshold value, setting the antennas with the preset number before the RSSI value sequencing in the antennas as combined detection antennas; step five: distance detection is performed by combining the detection antennas.
Furthermore, an optional technical solution is that the ultra wideband device comprises a base station device and at least one tag device; the distance detection between the base station equipment and the tag equipment is completed through the cooperation of the independent detection antenna or the combined detection antenna of the base station equipment and the independent detection antenna or the combined detection antenna of the tag equipment.
In addition, the optional technical scheme is that in the process of performing distance detection through the independent detection antenna, the method further comprises the following steps: detecting a first distance change value between the base station equipment and the tag equipment in a first preset time period; comparing the first distance variation value with a first set value, and executing the first to fifth steps again when the first distance variation value is larger than the first set value.
In addition, the optional technical scheme is that in the process of performing distance detection through the independent detection antenna, the method further comprises the following steps: and repeatedly executing the first step to the fifth step according to the preset frequency.
In addition, the optional technical scheme is that in the process of performing distance detection by combining the detection antennas, the method further comprises the following steps: detecting a second distance variation value between the base station equipment and the tag equipment in a second preset time period; comparing the second distance variation value with a second set value, and re-executing the first to fifth steps when the second distance variation value is larger than the second set value.
In addition, the optional technical solution is that the first distance variation value and the second distance variation value both include a distance increasing value and a distance decreasing value between the base station device and the tag device.
In addition, the optional technical scheme is that the RSSI value ordering of the antennas is ordered according to the order of the RSSI values from big to small.
Furthermore, an alternative solution is that the antenna comprises a signal receiving antenna and a signal transmitting antenna.
In addition, the number of the preset number is not less than 2.
On the other hand, the invention also provides electronic equipment, and the distance between the ultra-wideband equipment is detected by using the ultra-wideband equipment distance measuring method.
By using the ultra-wideband equipment ranging method and the electronic equipment, the antenna with the largest RSSI value is determined to be the independent detection antenna, or the antenna with the preset number before the RSSI value sequencing in the antennas is set to be the combined detection antenna, and the distance detection is performed through the independent detection antenna or the combined detection antenna, so that the detection precision is ensured and the low power consumption is realized when only one antenna is arranged in the ranging process, and the detection sensitivity is improved and the detection distance is increased when multiple antennas are arranged in the ranging process.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Furthermore, the invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and attainments together with a more complete understanding of the invention will become apparent and appreciated by referring to the following description taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a flowchart of a method for ultra wideband device ranging according to an embodiment of the present invention;
FIG. 2 is a second flowchart of a ranging method for an ultra wideband device according to an embodiment of the present invention;
fig. 3 is a flowchart III of a method for ultra wideband device ranging according to an embodiment of the present invention;
fig. 4 is a flowchart of a ranging method for an ultra wideband device according to an embodiment of the present invention.
The same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
For the existing adoption at present: according to the ultra-wideband equipment ranging method and the electronic equipment, all the antennas in the ultra-wideband equipment are detected, the antenna with the largest RSSI (Received Signal Strength Indicator) value is determined to be used as an independent detection antenna, or a plurality of antennas with larger RSSI value are determined to be used as combined detection antennas, and the independent detection antennas or the combined detection antennas are used for distance detection, so that when only one antenna is arranged for ranging, the detection accuracy is ensured, the low power consumption is realized, and when multiple antennas are arranged for ranging, the detection sensitivity is improved, and the ranging range is enlarged.
In order to describe the ultra-wideband device ranging method and the electronic device in detail, the following detailed description will be given of specific embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 shows a schematic flow of an ultra wideband device ranging method according to an embodiment of the present invention.
As shown in fig. 1, the ranging method for ultra-wideband equipment according to the embodiment of the present invention mainly includes:
s100: RSSI values of all antennas in the ultra-wideband equipment are detected respectively and compared, and the maximum value of the RSSI values of all antennas is determined.
Before executing the step S100, detecting whether the ranging function of the ultra wideband device is on, if the ranging function of the ultra wideband device is not on, detecting continuously according to the set frequency, otherwise, after confirming that the ranging function of the ultra wideband device is on, detecting the RSSI values of all antennas in the ultra wideband device respectively, comparing, and determining the maximum value of the RSSI values of all antennas.
S200: comparing the maximum value with a preset threshold value;
s300: when the maximum value is larger than a preset threshold value, the antenna corresponding to the maximum value is set as an independent detection antenna.
When the maximum value of the RSSI values is larger than a preset threshold value, the signal quality of the ultra-wideband equipment is good, and normal communication can be realized, so that an antenna corresponding to the maximum value of the RSSI can be set as an independent detection antenna, and distance detection is performed through the independent detection antenna.
S400: detecting the distance through an independent detection antenna;
s500: when the maximum value is not greater than a preset threshold value, setting the antennas with the preset number before the RSSI value sequencing in the antennas as combined detection antennas;
the RSSI value ordering of the antennas is mainly carried out according to the order from big to small of the RSSI values, the antennas with the big RSSI values can be determined to work together, and the number of the preset number is not less than 2, so that the effect of combined detection is realized.
Specifically, when the maximum value of the RSSI values is not greater than the preset threshold, it indicates that the signal quality of the ultra wideband device is weaker, and communication between the ultra wideband devices may be affected, at this time, multiple paths of antennas that can be supported by the ultra wideband device may be set to work simultaneously, for example, a preset number of antennas before the RSSI values are sequenced in the antennas may be used as a combined detection antenna, and distance detection is implemented through the combined antenna, so that the signal detection sensitivity of the ultra wideband device may be improved, and the distance of the ranging is increased.
S600: distance detection is performed by combining the detection antennas.
The antenna of the ultra-wideband device comprises a signal receiving antenna and a signal transmitting antenna, and the process of selecting an independent detecting antenna or a combined detecting antenna is applicable to the selecting process of the signal receiving antenna and the signal transmitting antenna, when the detecting antenna is the transmitting antenna, the corresponding intensity indication of the received signal can be the intensity indication of the transmitted signal, namely, the detecting antenna can be applicable to the receiving antenna and/or the transmitting antenna, and the application does not limit specific antenna types.
In addition, because the ultra-wideband equipment distance detection is mainly aimed at the distance detection between ultra-wideband equipment, the ultra-wideband equipment can comprise base station equipment and at least one tag equipment; when determining the independent detection antenna or the combined detection antenna, the antenna determination operation can be performed respectively for the base station equipment and the tag equipment, and then the distance detection between the base station equipment and the tag equipment is completed through the matching of the independent detection antenna or the combined detection antenna of the base station equipment and the independent detection antenna or the combined detection antenna of the tag equipment.
Example two
In a specific embodiment of the present invention, in the process of performing distance detection through the independent detection antenna, the distance measurement method of the ultra-wideband device may further include the following steps:
s410: detecting a first distance change value between the base station equipment and the tag equipment in a first preset time period;
s420: comparing the first distance variation value with the first set value, and re-executing steps S100 to S600 when the first distance variation value is greater than the first set value.
The first distance change value mainly means that the current distance between the detection base station equipment and the tag equipment and the historical distance of the last time are determined in a first preset time period, the difference value between the current distance and the historical distance is determined as the first distance change value, if the first distance change value is larger than a first set value, the fact that the distance change between the detection base station equipment and the tag equipment is larger is indicated, at the moment, the steps S100 to S600 can be repeatedly executed, further new independent detection antennas are determined, and detection accuracy is ensured; otherwise, if the first distance change value is smaller than the first set value, the distance change between the detection base station equipment and the tag equipment is smaller, and the determined independent antenna can be used for ranging at the moment, so that high-frequency repeated detection is not needed, further power consumption is saved, and unnecessary communication operation is avoided.
Specifically, fig. 2 shows a flow of an ultra wideband device ranging method according to a second embodiment of the present invention.
As shown in fig. 2, the ultra-wideband device ranging method in the second embodiment of the present invention mainly includes:
1. starting and judging whether a ranging function in the UWB equipment is started;
2. when the ranging function is started, the RSSI value of each path of antenna of the equipment is further detected, and the maximum value in the RSSI values is compared and determined; otherwise, circularly detecting whether the ranging function is started;
3. judging whether the maximum RSSI is greater than a preset threshold;
4. if yes, setting the antenna corresponding to the maximum RSSI as an independent detection antenna; otherwise, selecting the front few paths of antennas with larger RSSI as combined detection antennas;
5. judging whether the first distance change value between UWB devices is larger than a first set value, if so, re-executing the step 2; otherwise, the original independent detection antenna is still adopted; wherein the first distance change is mainly for the case of a distance increase.
Example III
In another embodiment of the present invention, in addition to determining the distance variation value, a preset frequency may be directly set, and then the steps S100 to S600 are repeatedly performed according to the preset frequency.
Specifically, fig. 3 shows a flow of an ultra wideband device ranging method according to a third embodiment of the present invention.
As shown in fig. 3, the ultra-wideband device ranging method in the third embodiment of the present invention mainly includes:
1. starting and judging whether a ranging function in the UWB equipment is started;
2. when the ranging function is started, the RSSI value of each path of antenna of the equipment is further detected, and the maximum value in the RSSI values is compared and determined; otherwise, circularly detecting whether the ranging function is started;
3. judging whether the maximum RSSI is greater than a preset threshold;
4. if yes, setting the antenna corresponding to the maximum RSSI as an independent detection antenna; otherwise, selecting the front few paths of antennas with larger RSSI as combined detection antennas;
5. and (3) repeatedly executing the step (2) through preset frequency in the application process of the independent detection antenna or the combined detection antenna.
Example IV
In the ultra-wideband device ranging method of the present invention, in the process of performing distance detection by combining the detection antennas, the ultra-wideband device ranging method may further include:
s610: detecting a second distance variation value between the base station equipment and the tag equipment in a second preset time period;
s620: comparing the second distance variation value with the second set value, and re-executing steps S100 to S600 when the second distance variation value is greater than the second set value.
It should be noted that, the step S610 and the step S620 may be used separately for performing the distance test on the ultra wideband device, or may be combined with the first preset time period and the determination condition of the first distance change value in the foregoing embodiment.
Specifically, fig. 4 shows a flow of an ultra wideband device ranging method according to a fourth embodiment of the present invention.
As shown in fig. 4, the ultra-wideband device ranging method in the fourth embodiment of the present invention mainly includes:
1. starting and judging whether a ranging function in the UWB equipment is started;
2. when the ranging function is started, the RSSI value of each path of antenna of the equipment is further detected, and the maximum value in the RSSI values is compared and determined; otherwise, circularly detecting whether the ranging function is started;
3. judging whether the maximum RSSI is greater than a preset threshold;
4. if yes, setting the antenna corresponding to the maximum RSSI as an independent detection antenna; otherwise, selecting the front few paths of antennas with larger RSSI as combined detection antennas;
5. judging whether the first distance change value between UWB devices is larger than a first set value, if so, re-executing the step 2; otherwise, the original independent detection antenna is still adopted; wherein the first distance change is mainly for the case of a distance increase.
6. Judging whether a second distance change value between UWB devices is larger than a second set value, if so, re-executing the step 2; otherwise, the original combination detection antenna is still adopted; wherein the second distance change is mainly for the case where the distance becomes smaller.
The second distance change value mainly means that the current distance between the detection base station equipment and the tag equipment and the historical distance of the last time are determined in a second preset time period, and a difference value between the current distance and the historical distance is determined as the second distance change value, if the second distance change value is larger than a second set value, it is indicated that the distance change between the detection base station equipment and the tag equipment is larger, and at the moment, the steps S100 to S600 can be repeatedly executed, so that a new combined detection antenna is determined, and the detection accuracy is ensured; otherwise, if the second distance change value is smaller than the second set value, it indicates that the distance change between the detected base station device and the tag device is smaller, and the determined combined antenna can still be used for ranging at the moment, so that high-frequency repeated detection is not needed, further power consumption is saved, and unnecessary communication operation is avoided.
It should be noted that, in the second embodiment and the fourth embodiment, the first distance change value and the second distance change value may include a distance increasing value and a distance decreasing value between the base station device and the tag device, and the degree of change of the distance is used to determine whether to screen the detection antenna again. In addition, when the distance change degree is large, there may be a transition from the independent detection antenna to the combined detection antenna when the detection antenna is newly determined, for example, when the distance becomes large, the independent detection antennas may not meet the detection requirement, at this time, detection may be performed together by the combined detection antenna, or there may be a transition from the combined detection antenna to the independent detection antenna, for example, when the distance becomes small, the independent detection antenna may be determined, at this time, without wasting the power consumption of the combined detection antenna, and in this case, antenna switching may be performed.
Corresponding to the ultra-wideband equipment ranging method, the invention also provides electronic equipment, and the distance between the ultra-wideband equipment is detected by using the ultra-wideband equipment ranging method.
Specifically, the embodiment of the preparation method of the ultra-wideband device ranging method may refer to the description in the embodiment of the ultra-wideband device ranging method apparatus, which is not described herein in detail.
According to the ultra-wideband equipment ranging method and the electronic equipment, the antenna with the largest RSSI value is determined to be the independent detection antenna in all the antennas in the ultra-wideband equipment, or the antenna with the preset number before the RSSI value sequencing in the antennas is set to be the combined detection antenna, so that the receiving antenna or the transmitting antenna of the UWB equipment can be flexibly configured during ranging, the function of low power consumption can be realized when only one path of antenna is arranged during ranging, and the effect of increasing the ranging distance can be realized by arranging multiple paths of antennas under the condition of not increasing the hardware cost.
The ultra-wideband device ranging method and the electronic device according to the present invention are described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the ultra-wideband device ranging method and the electronic device as set forth above without departing from the scope of the invention. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. A ranging method based on ultra-wideband equipment, which is characterized by being applied to electronic equipment, the method comprising:
step one: detecting RSSI values of all antennas in ultra-wideband equipment respectively, comparing the RSSI values, and determining the maximum value of the RSSI values of all the antennas;
step two: comparing the maximum value with a preset threshold value, and setting an antenna corresponding to the maximum value as an independent detection antenna when the maximum value is larger than the preset threshold value;
step three: performing distance detection through the independent detection antenna; otherwise the first set of parameters is selected,
step four: when the maximum value is not greater than the preset threshold value, setting a preset number of antennas before the RSSI value sequencing in the antennas as combined detection antennas;
step five: and performing distance detection through the combined detection antenna.
2. The ultra-wideband device ranging method of claim 1, wherein the ultra-wideband device comprises a base station device and at least one tag device; wherein,,
and the distance detection between the base station equipment and the tag equipment is completed through the cooperation of the independent detection antenna or the combined detection antenna of the base station equipment and the independent detection antenna or the combined detection antenna of the tag equipment.
3. The ultra-wideband apparatus ranging method of claim 2, further comprising, during said distance detection by said independent detection antenna:
detecting a first distance change value between the base station device and the tag device in a first preset time period;
comparing the first distance variation value with a first set value, and re-executing the first to fifth steps when the first distance variation value is larger than the first set value.
4. The ultra-wideband apparatus ranging method of claim 1, further comprising, during said distance detection by said independent detection antenna:
and repeatedly executing the first step to the fifth step according to a preset frequency.
5. The ultra-wideband apparatus ranging method of claim 2, further comprising, during said distance detection by said combined detection antenna:
detecting a second distance variation value between the base station device and the tag device in a second preset time period;
comparing the second distance variation value with a second set value, and re-executing the first to fifth steps when the second distance variation value is larger than the second set value.
6. The ultra-wideband device ranging method of claim 3 or 5, wherein,
the first distance variation value and the second distance variation value each include a distance-increasing value and a distance-decreasing value between the base station apparatus and the tag apparatus.
7. The ultra-wideband device ranging method of claim 1, wherein,
and the RSSI value ordering of the antennas is ordered according to the order of the RSSI values from big to small.
8. The ultra-wideband device ranging method of claim 1, wherein,
the antenna includes a signal receiving antenna and a signal transmitting antenna.
9. The ultra-wideband device ranging method of claim 1, wherein,
the number of the preset number is not less than 2.
10. An electronic device for detecting a distance between ultra-wideband devices using the ultra-wideband device ranging method of any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211538807.1A CN116008973A (en) | 2022-12-02 | 2022-12-02 | Ultra-wideband equipment ranging method and electronic equipment |
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| CN202211538807.1A CN116008973A (en) | 2022-12-02 | 2022-12-02 | Ultra-wideband equipment ranging method and electronic equipment |
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