CN112349080A - Bidirectional tracking system and bidirectional tracking method - Google Patents
Bidirectional tracking system and bidirectional tracking method Download PDFInfo
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- CN112349080A CN112349080A CN201910728120.6A CN201910728120A CN112349080A CN 112349080 A CN112349080 A CN 112349080A CN 201910728120 A CN201910728120 A CN 201910728120A CN 112349080 A CN112349080 A CN 112349080A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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Abstract
The invention discloses a bidirectional tracking system, which comprises a wearing device and a tracking label, wherein the wearing device is used for a user to wear or carry on the body, the tracking label is used for combining a mobile device, and the wearing device comprises a first UWB module, a first Bluetooth module and a first warning module; the tracking tag comprises a second UWB module; and the mobile device includes a tracking application; wherein, at least one of the tracking label and the mobile device is provided with a second Bluetooth module, the second Bluetooth module is used for carrying out a Bluetooth distance measurement procedure with the first Bluetooth module to obtain a first distance, when the first distance is greater than a first warning distance, the first UWB module carries out a UWB distance measurement procedure with the second UWB module to obtain a second distance, and when the second distance is greater than a second warning distance, the first warning module sends out warning information.
Description
Technical Field
The invention relates to a bidirectional tracking system and a bidirectional tracking method.
Background
In the current life, smart mobile devices have become indispensable tools, for example, the smart mobile devices are used to take public transportation, pay shopping money, search maps, browse social network sites or play electronic games (video games), and when a user forgets a smart mobile device, the user may feel inconvenience and may lose money or security. Therefore, how to prevent the smart mobile device from being lost has become an important issue.
To solve the above problems, there is a need in the art to provide a novel tracking system for smart mobile devices.
Disclosure of Invention
An objective of the present invention is to provide a bidirectional tracking system, which can effectively prevent the loss of the wearable device or the mobile device in an active preventive manner with low power consumption, or facilitate the user to find the wearable device or the mobile device.
Another objective of the present invention is to provide a bidirectional tracking method, which can effectively prevent the loss of the wearable device or the mobile device in an active preventive manner with low power consumption, or facilitate the user to find the wearable device or the mobile device.
To achieve the above object, a two-way tracking system is provided, which comprises a wearing device and a tracking tag, wherein the wearing device is used for a user to wear or carry on, and the tracking tag is used in combination with a mobile device, characterized in that:
the wearable device comprises a first UWB module, a first Bluetooth module and a first warning module;
the tracking tag comprises a second UWB module; and
the mobile device includes a tracking application;
wherein, at least one of the tracking label and the mobile device is provided with a second Bluetooth module, the second Bluetooth module is used for carrying out a Bluetooth distance measurement procedure with the first Bluetooth module to obtain a first distance, when the first distance is greater than a first warning distance, the first UWB module carries out a UWB distance measurement procedure with the second UWB module to obtain a second distance, and when the second distance is greater than a second warning distance, the first warning module sends out warning information.
In one embodiment, the bluetooth ranging procedure obtains the first distance according to a bluetooth signal received strength, and the UWB ranging procedure obtains the second distance by using a TOF procedure.
In possible embodiments, the warning message may be a sound, a light, a text or an image.
In one embodiment, the wearable device and the tracking tag each have an identifier.
In one embodiment, when UWB communication between the first UWB module and the second UWB module changes from unconnected to connected, the first alert module and/or the mobile device may send a proximity indication message.
In possible embodiments, the wearable device may be a smart watch, a smart bracelet, a smart necklace, or a smart key string.
In one embodiment, the wearable device comprises a first human-machine interface module.
In one embodiment, the tracking tag includes a second human interface module.
To achieve the above object, the present invention further provides a bidirectional tracking method applied between a wearable device and a mobile device coupled with a tracking tag, the bidirectional tracking method comprising the steps of:
executing a pair of code programs between the wearable device and the tracking tag and between the wearable device and the mobile device, respectively, wherein the tracking tag is coupled to the mobile device;
executing a bluetooth ranging procedure between the wearable device and the mobile device or between the wearable device and the tracking tag to obtain a first distance, and recording a comparison result of the first distance and a first warning distance in the wearable device or the mobile device; and
executing a UWB ranging procedure between the wearable device and the tracking tag to obtain a second distance when the comparison result shows that the first distance is greater than the first warning distance, recording the comparison result of the second distance and a second warning distance in the wearable device or the tracking tag, and enabling at least one device selected from the group consisting of the wearable device, the tracking tag and the mobile device to generate warning information when the comparison result shows that the second distance is greater than the second warning distance.
To achieve the above object, the present invention further provides a bidirectional tracking method applied between a wearable device and a mobile device coupled with a tracking tag, the bidirectional tracking method comprising the steps of:
executing a pair of code programs between the wearable device and the tracking tag and between the wearable device and the mobile device, respectively, wherein the tracking tag is coupled to the mobile device; and
when the UWB communication between the tracking tag and the wearable device changes from unconnected to connected, at least one device selected from the group consisting of the wearable device, the tracking tag and the mobile device is caused to generate proximity indication information.
Drawings
FIG. 1 is a schematic diagram of the operation of the two-way tracking system of the present invention;
FIG. 2 is a block diagram of one embodiment of the two-way tracking system of FIG. 1;
FIG. 3 is a flow chart of an embodiment of the bidirectional tracking method of the present invention;
FIG. 4 is a flow chart of another embodiment of the bidirectional tracking method according to the present invention.
Detailed Description
For a further understanding of the structure, features, objects, and advantages of the invention, reference should be made to the drawings and detailed description of preferred embodiments.
The principle of the invention lies in that the distance between a wearable device and a mobile device is monitored by combining the Bluetooth ranging technology (coarse-precision ranging) and the ultra-wideband (UWB) ranging technology (fine-precision ranging), so that the loss of the mobile device is effectively avoided or a user can conveniently find the wearable device or the mobile device in an active prevention manner under the condition of low power consumption.
Please refer to fig. 1 and fig. 2, wherein fig. 1 is a schematic operation diagram of the bidirectional tracking system of the present invention; FIG. 2 is a block diagram of an embodiment of the two-way tracking system of FIG. 1. As shown in fig. 1, the two-way tracking system includes a wearing device 10, a tracking tag 20 and a mobile device 30, wherein the wearing device 10 is used for a user to wear or carry, the tracking tag 20 is used in conjunction with the mobile device 30, the distance measurement between the wearing device 10 and the mobile device 30 is performed by bluetooth (D1), and the distance measurement between the wearing device 10 and the tracking tag 20 is performed by UWB (D2); as shown in fig. 2, the wearable device 10 includes a first power module 11 and a first control circuit 12, wherein the first power module 11 is used to supply power to the first control circuit 12, and the first control circuit 12 includes a first control module 12a, a first UWB module 12b, a first memory 12c, a first alarm module 12d, a first bluetooth module 12e, and a first human-machine interface module 12 f; the tracking tag 20 includes a second power module 21 and a second control circuit 22, wherein the second power module 21 is used to supply power to the second control circuit 22, and the second control circuit 22 includes a second control module 22a, a second UWB module 22b, a second memory 22c, a second warning module 22d and a second human-machine interface module 22 e; and the mobile device 30 includes a processor 31, a tracking application 32 and a second bluetooth module 33.
In the wearable device 10, the first control module 12a is configured to execute a first procedure to control the first UWB module 12b, the first alarm module 12d, the first bluetooth module 12e and the first human interface module 12f, wherein the first UWB module 12b is configured to perform a UWB ranging procedure with the tracking tag 20, and the UWB ranging procedure may include a time of flight (TOF) procedure to measure a distance between the wearable device 10 and the tracking tag 20; the first warning module 12d is used for providing warning information of sound, lamp signals, characters or images; the first bluetooth module 12e is configured to perform a bluetooth ranging procedure with the mobile device 30, and the bluetooth ranging procedure may include measuring a distance between the wearable device 10 and the mobile device 30 according to a bluetooth signal receiving strength; and a first human-machine interface module 12f for a user to perform a setting operation on the wearable device 10. In addition, the first memory 12c is used for storing at least one setting parameter (such as an identifier), the first program and an execution result of the first program.
In the tracking tag 20, the second control module 22a is configured to execute a second program to control the second UWB module 22b, the second alarm module 12d and the second human interface module 22e, wherein the second UWB module 22b is configured to perform the UWB ranging procedure with the first UWB module 12b of the wearing device 10; the second warning module 22d is used for providing warning information of sound, lamp signal, text or image; and a second human interface module 22e for the user to perform setting operation on the tracking tag 20. In addition, the second memory 22c is used for storing at least one setting parameter (such as an identifier), the second program and the execution result of the second program.
In the mobile device 30, the processor 31 is configured to execute the tracking application 32 to generate an alert distance setting screen for the user to set a first alert distance and a second alert distance, wherein the first alert distance defines a safe distance between the wearing device 10 and the mobile device 30, and the second alert distance defines a safe distance between the wearing device 10 and the tracking tag 20; and the second bluetooth module 33 is used for performing the bluetooth ranging procedure with the first bluetooth module 12e of the wearable device 10. In addition, the tracking application 32 is preferably an externally downloaded application.
After the user sets the first alert distance and the second alert distance, the mobile device 30 will transmit the information of the first alert distance and the second alert distance to the wearing device 10 through the bluetooth module 33; the wearable device 10 writes the information of the first alert distance and the second alert distance into the first memory 12c and transmits the information of the second alert distance to the tracking tag 20 through the first UWB module 12 b; and the tracking tag 20 writes the second warning distance information to the second memory 22 c.
In practical applications, the bluetooth distance measurement procedure is performed between the wearable device 10 and the mobile device 30 to measure a first distance, if the first distance is greater than the first alert distance, the wearable device 10 and the tracking tag 20 perform the UWB distance measurement procedure to measure a second distance, and if the second distance is greater than the second alert distance, the wearable device 10 causes the first warning module 12d to send a warning message to alert the user. In addition, in a possible embodiment, when the first distance is greater than the first warning distance, at least one of the wearable device 10 and the mobile device 30 sends out warning information; and when the second distance is greater than the second warning distance, the tracking tag 20 may also send out an alert message to alert the user.
Additionally, in possible embodiments, the UWB ranging procedure may be dominated by the wearable device 10 or the tracking tag 20, and the bluetooth ranging procedure may be dominated by the wearable device 10 or the mobile device 30. Alternatively, the tracking tag 20 may have a bluetooth module to perform a bluetooth ranging procedure with the first bluetooth module 12e of the wearable device 10 to measure a distance, and the UWB ranging procedure is started by the wearable device 10 or the tracking tag 20 when the distance is greater than the first alarm distance.
In addition, the wearable device 10 may be a smart watch, a smart bracelet, a smart necklace, or a smart key string; and the tracking tag 20 may be a mobile device pendant, patch, or other item that may be an accessory to a mobile device.
In addition, as can be seen from the above description, when the user wears the wearable device 10, the wearable device 10 can be used to monitor the distance between the user and the mobile device 30 combined with the tracking tag 20 to ensure that the mobile device 30 is not lost; and, when the user carries the mobile device 30 incorporating the tracking tag 20 but does not wear the wearable device 10, the mobile device 30 can be used to monitor the distance of the user from the wearable device 10 to ensure that the wearable device 10 is not lost. Accordingly, the present invention can realize the bidirectional anti-lost function between the wearable device 10 and the mobile device 30.
In addition, according to the above technical solution, the present invention can also provide a bidirectional search function. For example, in the process of a user searching for the wearable device 10 by the mobile device 30 combined with the tracking tag 20, when the UWB communication between the tracking tag 20 and the wearable device 10 changes from unconnected to connected, the mobile device 30 and/or the wearable device 10 may send a proximity indication message to notify the user; or when UWB communication between the tracking tag 20 and the wearable device 10 changes from unconnected to connected during the process of the user using the wearable device 10 to search for the mobile device 30 associated with the tracking tag 20, the wearable device 10 and/or the mobile device 30 may send a proximity indication message to notify the user. In addition, the two-way anti-lost function and the two-way searching function can be cooperatively realized by the first program, the second program and the tracking application 32, and the user can operate the alert distance setting screen or the first human machine interface module 12f or the second human machine interface module 22e to activate the two-way anti-lost function or the two-way searching function. In addition, during the two-way anti-lost function or the two-way searching function, a pair of code programs are executed between the wearable device 10 and the tracking tag 20 and the mobile device 30 to determine whether to match each other by comparing the identifiers.
In accordance with the above description, the present invention further provides a bidirectional tracking method. Referring to fig. 3, a flow chart of an embodiment of the bidirectional tracking method according to the invention is shown, wherein the bidirectional tracking method is applied between a wearable device and a mobile device combined with a tracking tag. As shown in fig. 3, the bidirectional tracking method of the present invention comprises the following steps: executing a pair of code processes between a wearing device and a tracking tag and between the wearing device and a mobile device, respectively, wherein the tracking tag is coupled to the mobile device (step a 1); performing a bluetooth ranging procedure between the wearable device and the mobile device or between the wearable device and the tracking tag to obtain a first distance, and recording a comparison result of the first distance and a first warning distance in the wearable device or the mobile device (step b 1); and performing a UWB ranging procedure between the wearable device and the tracking tag to obtain a second distance when the comparison result shows that the first distance is greater than the first alert distance, recording a comparison result of the second distance and a second alert distance in the wearable device or the tracking tag, and causing at least one device selected from the group consisting of the wearable device, the tracking tag, and the mobile device to generate an alert message when the comparison result shows that the second distance is greater than the second alert distance (step c 1).
Referring to fig. 4, a flow chart of another embodiment of the bidirectional tracking method according to the present invention is shown, wherein the bidirectional tracking method is applied between a wearable device and a mobile device combined with a tracking tag. As shown in fig. 4, the bidirectional tracking method of the present invention comprises the following steps: executing a pair of code processes between a wearing device and a tracking tag and between the wearing device and a mobile device, respectively, wherein the tracking tag is associated with the mobile device (step a 2); and causing at least one device selected from the group consisting of the wearable device, the tracking tag, and the mobile device to generate proximity indication information when UWB communication between the tracking tag and the wearable device changes from unconnected to connected (step b 2).
As can be seen from the above description, the bidirectional tracking system and the bidirectional tracking method of the present invention can provide the bidirectional tracking function with low power consumption, so as to actively prevent the loss of the wearable device or the mobile device or facilitate the user to find the wearable device or the mobile device.
It should be emphasized that the above-described embodiments are presently preferred, since numerous variations and modifications may be made, which will be apparent to those skilled in the art, without departing from the scope of the invention.
In conclusion, the present invention is different from the prior art in terms of the purpose, means and effect, and the invention is practical and indeed meets the patent requirements of the invention.
Claims (10)
1. A two-way tracking system comprising a wearing device and a tracking tag, wherein the wearing device is adapted to be worn or carried by a user, and the tracking tag is adapted to be associated with a mobile device, the two-way tracking system comprising:
the wearable device comprises a first UWB module, a first Bluetooth module and a first warning module;
the tracking tag comprises a second UWB module; and
the mobile device includes a tracking application;
wherein, at least one of the tracking label and the mobile device is provided with a second Bluetooth module, the second Bluetooth module is used for carrying out a Bluetooth distance measurement procedure with the first Bluetooth module to obtain a first distance, when the first distance is greater than a first warning distance, the first UWB module carries out a UWB distance measurement procedure with the second UWB module to obtain a second distance, and when the second distance is greater than a second warning distance, the first warning module sends out warning information.
2. The system of claim 1, wherein the bluetooth ranging procedure obtains the first range according to a bluetooth signal received strength, and the UWB ranging procedure obtains the second range by a TOF procedure.
3. The two-way tracking system of claim 1, wherein the alert message is a message selected from the group consisting of a sound, a light, text, and an image.
4. The two-way tracking system of claim 1, wherein the wearable device and the tracking tag each have an identifier.
5. The two-way tracking system of claim 1, wherein the first alert module and/or the mobile device issues a proximity indication when UWB communication between the first UWB module and the second UWB module changes from unconnected to connected.
6. The two-way tracking system of claim 1, wherein the wearable device is a device selected from the group consisting of a smart watch, a smart bracelet, a smart necklace, and a smart key string.
7. The two-way tracking system of claim 1, wherein the wearable device further comprises a first human machine interface module.
8. The two-way tracking system of claim 1, wherein the tracking tag further comprises a second human interface module.
9. A bidirectional tracking method is applied between a wearable device and a mobile device combined with a tracking tag, and comprises the following steps:
executing a pair of code programs between the wearable device and the tracking tag and between the wearable device and the mobile device, respectively, wherein the tracking tag is coupled to the mobile device;
executing a bluetooth ranging procedure between the wearable device and the mobile device or between the wearable device and the tracking tag to obtain a first distance, and recording a comparison result of the first distance and a first warning distance in the wearable device or the mobile device; and
executing a UWB ranging procedure between the wearable device and the tracking tag to obtain a second distance when the comparison result shows that the first distance is greater than the first warning distance, recording the comparison result of the second distance and a second warning distance in the wearable device or the tracking tag, and enabling at least one device selected from the group consisting of the wearable device, the tracking tag and the mobile device to generate warning information when the comparison result shows that the second distance is greater than the second warning distance.
10. A bidirectional tracking method is applied between a wearable device and a mobile device combined with a tracking tag, and comprises the following steps:
executing a pair of code programs between the wearable device and the tracking tag and between the wearable device and the mobile device, respectively, wherein the tracking tag is coupled to the mobile device; and
when the UWB communication between the tracking tag and the wearable device changes from unconnected to connected, at least one device selected from the group consisting of the wearable device, the tracking tag and the mobile device is caused to generate proximity indication information.
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