Multi-channel data transmission method, device and label based on UWB (Ultra Wideband)

Abstract

The invention provides a multi-channel data transmission method and device based on UWB, and a label. The label has a Bluetooth channel and a UWB channel. The label side method comprises the following steps: acquiring to-be-transmitted data through the Bluetooth channel; and sending the configuration information to the UWB card reading equipment through the UWB channel under the condition that the data to be transmitted is the configuration information, and sending the sensing data to the UWB card reading equipment through the UWB channel under the condition that the data to be transmitted is the sensing data, so that the card reading equipment uploads the sensing data to the server. According to the scheme disclosed by the invention, the process and workload of installation and configuration can be simplified by utilizing the double-channel labels, and configuration personnel can install equipment at a determined position and complete configuration by descending a well at one time; the ultra-large bandwidth of the UWB is fully utilized, surrounding Internet of Things sensing data is collected and uploaded through UWB ranging signals, and the investment of Internet of Things infrastructure construction is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of UWB positioning technology, and in particular to a UWB-based multi-channel data transmission method, device and tag. Background Art

[0002] With the development of UWB positioning technology, UWB-based precise positioning equipment is widely used in coal mine production. To achieve precise positioning of UWB tags underground, it is necessary to first deploy UWB card readers at multiple locations underground and configure the location and ID information of these card readers in the positioning system.

[0003] There are many types of UWB card reading devices deployed underground, mainly including various types of fusion base stations, card reading substations, card readers, etc. To deploy these devices, it is necessary to first determine the actual fixed position of the equipment to be deployed, uniformly configure the ID for the equipment to be deployed in the positioning system, and then associate it with the map position of the positioning system. Personnel are also required to go down to the mine to assemble the equipment at the corresponding position and cooperate with the ground to complete the equipment position calibration. This process is cumbersome and requires a lot of manpower. As the underground mining progresses, the location and number of equipment deployed underground must change accordingly to ensure the accurate positioning of the tags, which will make the workload of equipment deployment particularly heavy. At the same time, a large number of card reading devices and the broadband capabilities of UWB itself have not been fully utilized, resulting in a waste of resources.

[0004] Therefore, it is of practical significance to simplify the deployment process of UWB card reader devices and make full use of the UWB positioning system. Summary of the invention

[0005] The present invention provides a UWB-based multi-channel data transmission method, device and tag, which are used to solve the problem of complex process of deploying UWB card reading equipment in the prior art.

[0006] The present invention solves the above technical problems through the following aspects:

[0007] In a first aspect, the present invention provides a multi-channel data transmission method based on UWB, which is applicable to a tag side, wherein the tag has a Bluetooth channel and a UWB channel, and the method comprises:

[0008] Acquire the data to be transmitted through the Bluetooth channel;

[0009] In the case where the data to be transmitted is configuration information, sending the configuration information to a UWB card reader device through the UWB channel, so that the card reader device completes the system configuration of the device in response to the configuration information;

[0010] In the case where the data to be transmitted is sensor data, the sensor data is sent to a UWB card reader device through the UWB channel, so that the card reader device uploads the sensor data to a server.

[0011] In a second aspect, the present invention provides a multi-channel data transmission device based on UWB, which is applicable to a tag side, wherein the tag has a Bluetooth channel and a UWB channel, and the device comprises:

[0012] A Bluetooth data acquisition module is used to acquire the data to be transmitted through the Bluetooth channel.

[0013] a configuration information sending module, configured to send the configuration information to a UWB card reader device through the UWB channel when the data to be transmitted is configuration information, so that the card reader device completes device configuration in response to the configuration information;

[0014] The sensor data sending module is used to send the sensor data to the UWB card reader device through the UWB channel when the data to be transmitted is sensor data, so that the card reader device uploads the sensor data to the server.

[0015] In a third aspect, the present invention provides a tag for multi-channel data transmission based on UWB, the tag comprising: a Bluetooth channel circuit, a UWB channel circuit, a microprocessor, and a memory communicatively connected to the microprocessor;

[0016] The microprocessor is communicatively connected with the Bluetooth channel circuit and the UWB channel circuit;

[0017] The memory stores instructions that can be executed by the microprocessor, and when the instructions are executed by the microprocessor, the method according to any one of claims 1 to 7 can be implemented.

[0018] In a fourth aspect, the present invention provides a multi-channel data transmission method based on UWB, which is applicable to a device side, and the method includes:

[0019] Receiving data to be transmitted sent by a tag, the tag having a Bluetooth channel and a UWB channel, and the data to be transmitted is received by the tag through the Bluetooth channel;

[0020] In a case where the data to be transmitted is configuration information, completing system configuration of the device in response to the configuration information;

[0021] In the case where the data to be transmitted is sensor data, the sensor data is uploaded to a server.

[0022] In a fifth aspect, the present invention provides a multi-channel data transmission device based on UWB, which is applicable to a device side, and the device includes:

[0023] A receiving module, used for receiving data to be transmitted sent by a tag, wherein the tag has a Bluetooth channel and a UWB channel, and the data to be transmitted is received by the tag through the Bluetooth channel;

[0024] A configuration module, configured to complete the system configuration of the device in response to the configuration information when the data to be transmitted is configuration information;

[0025] The uploading module is used to upload the sensor data to the server when the data to be transmitted is sensor data.

[0026] The technical solution of the present invention has the following beneficial effects:

[0027] 1) Simplified deployment: The use of dual-channel tags can simplify the installation and configuration process and workload. Configuration personnel can install equipment and complete configuration at a determined location in one trip down the well.

[0028] 2) Synchronous calibration: After the equipment is deployed, the synchronous calibration of the equipment can be completed on-site by measuring the distance between the tag and the equipment with the help of a matching handheld device;

[0029] 3) Resource sharing: Make full use of the ultra-large bandwidth of UWB. Under the premise of ensuring the timely transmission of positioning data, collect the surrounding IoT sensor data and upload it through UWB ranging signals, reducing the investment in IoT network infrastructure. When the UWB positioning system is operating normally, the IoT data can be uploaded by relying on the positioning tags carried by underground personnel. If the wired channel of the IoT is interrupted, the underground environment data can be obtained with the help of positioning tags to provide support for emergency rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the principle of UWB unilateral bidirectional ranging;

[0032] Figure 2 A flowchart of a tag-side method for multi-channel data transmission based on UWB provided in an embodiment of the present disclosure;

[0033] Figure 3 is a schematic diagram of the circuit structure of a tag in an embodiment of the present disclosure;

[0034] Figure 4This is a schematic diagram of the workflow of initial deployment in an embodiment of the present disclosure;

[0035] Figure 5 Schematic diagram of the principle of synchronous ranging in an embodiment of the present disclosure;

[0036] Figure 6 A schematic diagram of packet transmission of sensor data in an embodiment of the present disclosure;

[0037] Figure 7 It is a schematic diagram of a data transmission process using multiple channels in an embodiment of the present disclosure;

[0038] Figure 8 A structural block diagram of a tag-side device for multi-channel data transmission based on UWB provided in an embodiment of the present disclosure;

[0039] Fig. 9 A structural block diagram of a tag for UWB multi-channel data transmission provided in an embodiment of the present disclosure;

[0040] Fig.10 A flowchart of a device-side method for multi-channel data transmission based on UWB provided in an embodiment of the present disclosure;

[0041] Fig.11 A structural block diagram of a device-side apparatus for multi-channel data transmission based on UWB provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solutions in the present disclosure, the technical solutions of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present disclosure. In addition, for the sake of clarity, parts that are not related to the description of the exemplary embodiments are omitted in the drawings.

[0043] In this specification, it should be understood that terms such as "including" or "having" are intended to indicate the existence of the features, numbers, steps, behaviors, components, parts or combinations thereof disclosed in the present disclosure, and are not intended to exclude the possibility that one or more other features, numbers, steps, behaviors, components, parts or combinations thereof exist or are added. It should also be noted that the embodiments in the present disclosure and the features in the embodiments may be combined with each other if there is no conflict.

[0044] UWB (Ultra-Wideband) communication technology transmits data in nanosecond non-sinusoidal narrow pulses, and has the characteristics of wide transmission bandwidth, low power, and strong anti-interference ability. It is often used for precise positioning of personnel in coal mines. Workers wear UWB tags (hereinafter referred to as tags) and use UWB communication technology to monitor the distance between them and the base station or reader (hereinafter referred to as card reader) in real time to complete tracking and positioning.

[0045] The UWB positioning system has the following characteristics: 1. Simple system structure; 2. High-speed data transmission capability; 3. Low power consumption; 4. High security; 5. Strong multipath resolution capability; 6. High positioning accuracy. The main indicators of commonly used UWB positioning systems are as follows:

[0046] Frequency range: 3.1GHz~10.6GHz;

[0047] Pulse width: 0.2ns~1.5ns;

[0048] Repeat period: 25ns~1ms;

[0049] Data rate: up to several hundred Mb / s;

[0050] Path delay: ≤1ns;

[0051] UWB positioning is achieved through ranging, which can be obtained by measuring the signal flight time (TOF), that is, using the timestamps of sending and receiving signals to calculate the distance between devices. In order to eliminate the error caused by clock asynchrony, two-way ranging technology is usually used, such as single-side two-way ranging (SS-TWR) and double-side two-way ranging (DS-TWR).

[0052] The principle of unilateral two-way ranging is as follows Figure 1 shown.

[0053] The round-trip time Trou1 of the UWB pulse signal from transmitter A to receiver B and then back to transmitter A, minus the signal processing time Tdelay at receiver B, and divided by 2, we can calculate the flight time TOF of the pulse signal between the two devices, that is, TOF = (Trou1-Tdelay) / 2, and then multiply it by the propagation speed of the wireless signal to determine the distance D between the two devices, that is, D = TOF×c, where c is the speed of light.

[0054] Figure 2 A flowchart of a tag-side method for multi-channel data transmission based on UWB provided in an embodiment of the present disclosure.

[0055] like Figure 2 As shown, the method on the tag side includes steps S210 to S230, and the tag has a Bluetooth channel and a UWB channel.

[0056] S210: Acquire the data to be transmitted through the Bluetooth channel.

[0057] In the embodiment of the present disclosure, the tag has a Bluetooth channel and a UWB channel. On the basis of the UWB circuit of the tag itself, a Bluetooth circuit is added to obtain a UWB data channel and a Bluetooth data channel (referred to as UWB channel and Bluetooth channel). Figure 3 As shown, the Bluetooth circuit in the Bluetooth channel is connected to the MCU (microprocessor) through UART, and the UWB circuit and PA in the UWB channel are connected to the MCU through UART. For ease of use, independent switches are also provided in the Bluetooth circuit and the UWB circuit to manually control the opening and closing of the two data channels, providing flexibility for applications in different scenarios.

[0058] In S210, the process of obtaining the data to be transmitted through the Bluetooth channel may be: establishing a connection with a handheld device through the Bluetooth channel, receiving configuration information sent by the handheld device, and the configuration information is used to configure the system ID of the card reader. The handheld device is, for example, a smart phone suitable for use underground carried by a worker, which usually has a Bluetooth and 5G communication module and can be connected to the tag through Bluetooth, but does not have a UWB communication module and cannot communicate directly with the UWB card reader.

[0059] In S210, the process of acquiring the data to be transmitted through the Bluetooth channel may also be: according to a preset reading cycle, the sensor data collected by the Bluetooth sensors around the tag is read through the Bluetooth channel. Since a large number of sensors are deployed underground, many of which have Bluetooth communication modules and can establish a non-paired Bluetooth connection with the positioning tag, the tag can read the sensor data collected by the surrounding Bluetooth sensors at periodic intervals.

[0060] Tags with Bluetooth channels can take advantage of the low cost and protocol characteristics of Bluetooth to establish unpaired or paired connections with surrounding Bluetooth devices after opening the Bluetooth channel, and obtain the data to be transmitted to the UWB card reader.

[0061] S220: In the case where the data to be transmitted is configuration information, the configuration information is sent to the UWB card reader device through the UWB channel, so that the card reader device completes the system configuration of the device in response to the configuration information.

[0062] When deploying UWB devices, you can use tags with dual data channels to simplify the deployment process. The configuration information received by the tag mainly includes the system ID of the card reader to be configured. The system ID is the unique identifier in the positioning system and is associated with the actual installation location. The deployment process at this time is as follows: Figure 4 shown.

[0063] After the staff enters the well, they install the card reader at a fixed position in the selected tunnel. After the installation is completed, they turn on the power and identify the card reader through the positioning tag worn by the staff. After establishing a Bluetooth connection with the positioning tag using the matching handheld smart device, the system ID to be configured is sent to the card reader through the positioning tag, so that the card reader completes the system ID configuration. Subsequently, UWB ranging positioning can be performed synchronously at both ends to calibrate the position of the card reader. After the accuracy calibration is completed, the configuration result of the card reader can be uploaded to the server by the card reader, or saved and uploaded by the staff's handheld device. The entire deployment process only requires the staff to go down the well once to complete the installation, configuration and calibration work. Compared with the traditional deployment process that requires first determining the location and the ID code of the equipment - then assembling it at a specific location - and then coordinating calibration with the ground, the deployment process and workload are greatly simplified.

[0064] Furthermore, the configuration information can be carried by the broadcast signal sent by the tag, that is, the broadcast signal sent through the UWB channel carries the configuration information. After the broadcast signal is received by the corresponding UWB card reader, the configuration information carried therein is identified, thereby completing the system configuration according to the configuration information. Since it is the initial system configuration, the configuration information can be sent through a non-directional broadcast signal before establishing directional ranging. During implementation, the staff can adjust the on-site position, and the broadcast signal sent by the tag they wear can only be received by the card reader to be configured, thereby simplifying the configuration work.

[0065] After the system ID of the card reader is configured, you can start the synchronous ranging to calibrate the accuracy of the card reader. The process of synchronous ranging is as follows: Figure 5 As shown. The transmitter A will generate an independent first pulse signal with a timestamp Ta1 from the start of the work, requesting communication with the other end B. After the receiving end B receives the sent pulse signal at its own Tb1 time, it sends a response signal to the other end A at Tb2, which carries the receiving time Tb1 and the sending time Tb2. The transmitter A receives the response signal of the other end B at Ta2, which carries dual time information. The transmitter A carries the receiving time Ta2 and the sending time Ta3 at Ta3, and then sends the second pulse signal to the other end B. The receiving end B receives the second pulse signal at Tb3, and then both ends calculate the ranging results respectively:

[0066] A-side calculation: T rou1 =(Ta2-Ta1)-(Tb2-Tb1)

[0067]

[0068] B-side calculation: T rou2 =(Tb3-Tb2)-(Ta3-Ta1)

[0069]

[0070] Where C is the speed of light.

[0071] Compare the distance measurement results D1 and D2 of the transmitter A and the receiver B respectively. If the time distances of the two ends are consistent, the calibration is completed.

[0072] In order to facilitate the field staff to perform precision calibration, this embodiment may also include the following calibration process: responding to the synchronous ranging instruction issued by the handheld device, starting the synchronous ranging process with the card reader device, and calculating the first ranging result; receiving the second ranging result sent by the card reader device through the UWB channel, and sending the first ranging result and the second ranging result to the handheld device through the Bluetooth channel to complete the position calibration of the card reader device. Among them, the synchronous ranging process includes: the tag sends a first pulse signal with a sending timestamp Ta1, receives a response signal with a sending timestamp Tb1 and a receiving timestamp Tb2 returned by the card reader device, and sends a second pulse signal with a receiving timestamp Ta2 for the response signal and a sending timestamp Ta3 for sending the second pulse signal, and the tag and the card reader device each calculate their own ranging results according to the timestamps. The card reader device sends the calculated ranging result to the tag, and the tag sends the ranging results at both ends to the handheld device, and the handheld device completes the comparison calibration. Using the calibration method of this embodiment, underground workers can connect to the tag via Bluetooth on site and calibrate the position of the newly configured card reader device without the need for cooperation from the ground or networking with the positioning system, thereby simplifying the deployment and calibration of the newly assembled equipment.

[0073] S230: When the data to be transmitted is sensor data, the sensor data is sent to a UWB card reader through a UWB channel, so that the card reader uploads the sensor data to a server.

[0074] When the card reader completes the initial system configuration, the positioning tag can establish a distance measurement connection with the card reader to perform normal positioning and distance measurement. When the tag is in normal use, the Bluetooth circuit and UWB circuit remain open, the Bluetooth channel can connect to the surrounding Bluetooth sensors to read sensor data, the UWB channel can connect to the card reader for distance measurement, and make full use of the large bandwidth of UWB to upload sensor data.

[0075] The sensing data can be carried by a ranging signal, such as a pulse signal sent by a tag in a TOF algorithm, that is, a ranging signal sent through a UWB channel carries the sensing data and sends the sensing data to a UWB card reader.

[0076] In practical applications, electromagnetic waves are transmitted for 30cm in 1ns, so positioning and ranging require sufficiently high clock accuracy. Especially for the receiving end, the device clock source has a frequency deviation of ppm, which will cause a slight deviation in the delay Tb of the receiving end. A deviation of 1us will cause a deviation of more than 5m in ranging. When Bluetooth data transmission is introduced, the amount of data increases. On the basis of ensuring accurate positioning, the reliability of data transmission must also be guaranteed. Therefore, it is necessary to eliminate the influence of the delay in the flight time algorithm on the error. In the embodiment of the present disclosure, data segmentation and idle transmission are used to reduce this influence.

[0077] In order to ensure the accuracy of positioning and ranging, the amount of data that each ranging signal can carry is preset, and the data size is identified after the sensor data is read. For example, the UWB transmission data size is set to a threshold of 50 bytes, of which the positioning data occupies 30 bytes. If the sensor data exceeds the preset size, it is divided into multiple data packets, and multiple continuous ranging signals sent through the UWB channel carry multiple data packets. This process is as follows Figure 6 As shown in the figure, the data collected by the sensor is divided into TOF1, TOF2, and TOF3 data packets by the tag, and sent to the card reader through three consecutive ranging signals. The card reader combines the data packets in the three ranging signals into the original sensor data and then uploads it to the server. The sub-packet transmission of sensor data will not affect the transmission of the ranging signal itself.

[0078] In order to ensure the accuracy of positioning and ranging and reduce power consumption as much as possible, the interval for reading sensor data is set according to the sending interval of the UWB ranging signal. During the idle time of positioning and ranging through the UWB channel, the sensor data is read through the Bluetooth channel so that the Bluetooth circuit and the UWB circuit are not enabled at the same time. At the same time, the interval for reading Bluetooth sensor data must be greater than the interval for UWB ranging. For example, the frequency of the tag performing UWB positioning and ranging is once every 1 second, and the time of one ranging process is less than 3ms. If the tag scans and detects Bluetooth sensor data in the surrounding area, the frequency of reading is once every 5 seconds, which will not affect the ranging result and can also ensure the timeliness of the sensor data. This process is as follows Figure 7 shown.

[0079] On this basis, the sensor data read each time is identified. If the data read this time has not changed compared with the sensor data sent to the UWB card reader last time, the sensor data read this time will not be uploaded. The newly read sensor data will not be uploaded until the sensor data read has changed. That is, if the first sensor data read at the first moment is sent to the UWB card reader, the first sensor data is stored locally; compare whether the second sensor data read at the second moment is different from the first sensor data; if there is no difference, the second sensor data is not uploaded; if there is a difference, the second sensor data is sent to the UWB card reader, and the local storage is updated with the second sensor data. The tag has the corresponding software and hardware modules required for data storage and data identification.

[0080] According to the method of the above embodiment, the use of dual-channel tags can simplify the installation and configuration process and workload. The configuration personnel can install the equipment at a determined location and complete the configuration in one go down the well; after the equipment is deployed, the equipment can be calibrated on site through synchronous ranging between the tag and the equipment, with the help of a matching handheld device. Make full use of the ultra-large bandwidth of UWB, and on the premise of ensuring the timely transmission of positioning data, collect the surrounding IoT sensor data and upload it through the UWB ranging signal, reducing the investment in the infrastructure of the IoT network. When the UWB positioning system is operating normally, the IoT data can be uploaded by relying on the positioning tags carried by the underground personnel. If the IoT wired channel is interrupted, the underground environmental data can be obtained with the help of positioning tags to provide support for emergency rescue.

[0081] Correspondingly, the present disclosure also provides a tag-side device for multi-channel data transmission based on UWB.

[0082] Figure 8 This is a structural block diagram of a tag-side device 300 provided in an embodiment of the present disclosure. The device 300 can be implemented as part or all of an electronic device through software, hardware, or a combination of both.

[0083] like Figure 8 As shown, the tag has a Bluetooth channel and a UWB channel, and the device 300 includes a Bluetooth data acquisition module 310 , a configuration information sending module 320 and a sensor data sending module 330 .

[0084] The Bluetooth data acquisition module 310 is used to acquire the data to be transmitted through the Bluetooth channel.

[0085] The configuration information sending module 320 is used to send the configuration information to the UWB card reader device through the UWB channel when the data to be transmitted is configuration information, so that the card reader device completes the device configuration in response to the configuration information.

[0086] The sensor data sending module 330 is used to send the sensor data to the UWB card reader device through the UWB channel when the data to be transmitted is sensor data, so that the card reader device uploads the sensor data to the server.

[0087] On this basis, the present disclosure also provides a tag for multi-channel data transmission based on UWB.

[0088] Fig. 9 This is a structural block diagram of a tag 400 provided in an embodiment of the present disclosure. The tag 400 can be implemented as part or all of an electronic device through software, hardware, or a combination of both.

[0089] like Fig. 9 As shown, the tag 400 includes a Bluetooth channel circuit 410 , a UWB channel circuit 420 , a microprocessor 430 , and a memory 440 communicatively connected to the microprocessor 430 .

[0090] The microprocessor 430 is in communication connection with the Bluetooth channel circuit 410 and the UWB channel circuit 420. The memory 440 stores instructions executable by the microprocessor, and when the instructions are executed by the microprocessor, the various methods described above can be implemented.

[0091] The above are methods on the tag side and corresponding devices and tags. Based on the same inventive concept, the present disclosure also provides methods and devices on the device side.

[0092] Fig.10 A flowchart of a device-side method for multi-channel data transmission based on UWB provided in an embodiment of the present disclosure.

[0093] like Fig.10 As shown, the method on the device side includes steps S510 to S530.

[0094] S510: receiving the data to be transmitted sent by the tag, the tag has a Bluetooth channel and a UWB channel, and the data to be transmitted is received by the tag through the Bluetooth channel.

[0095] S520: When the data to be transmitted is configuration information, complete system configuration of the device in response to the configuration information.

[0096] S530: When the data to be transmitted is sensor data, the sensor data is uploaded to the server.

[0097] When the sensing data received by the card reader is divided into data packets, they can be combined to restore the original sensing data and then uploaded to the server.

[0098] The card reader may also have Figure 3The dual-channel circuit shown in the figure can also be used by the staff to directly connect the handheld device to the card reader to complete the initial configuration. However, given the short communication distance of Bluetooth, in many scenarios, it is difficult to ensure close communication between the staff or sensor and the card reader. It is more flexible to use the dual-channel tag provided by the present disclosure to complete the above initial configuration and sensor data transmission.

[0099] The card reader can also cooperate with the tag to complete synchronous ranging, which is specifically implemented by referring to the above-mentioned tag side method.

[0100] Correspondingly, the device side device based on UWB multi-channel data transmission is as follows Fig.11 shown.

[0101] Fig.11 This is a structural block diagram of a device side apparatus 600 provided in an embodiment of the present disclosure. The apparatus 600 can be implemented as part or all of an electronic device through software, hardware, or a combination of both.

[0102] like Fig.11 As shown, the device side apparatus 600 includes a receiving module 610 , a configuration module 620 , and an upload module 630 .

[0103] The receiving module 610 is used to receive the data to be transmitted sent by the tag. The tag has a Bluetooth channel and a UWB channel. The data to be transmitted is received by the tag through the Bluetooth channel.

[0104] The configuration module 620 is used to complete the system configuration of the device in response to the configuration information when the data to be transmitted is configuration information.

[0105] The uploading module 630 is used to upload the sensor data to the server when the data to be transmitted is sensor data.

[0106] Each embodiment in the present disclosure is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the tag side device, the method and device embodiments on the card reader side, since they are basically similar to the tag side method embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the tag side method embodiments.

[0107] The above describes specific embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0108] The above description is only an embodiment of the present disclosure and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various changes and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the scope of the claims of the present disclosure.

Claims

1. A multi-channel data transmission method based on UWB, applicable to the tag side, characterized in that: The tag has a Bluetooth channel and a UWB channel, and the method includes: Acquire the data to be transmitted through the Bluetooth channel; In the case where the data to be transmitted is configuration information, sending the configuration information to a UWB card reader device through the UWB channel, so that the card reader device completes the system configuration of the device in response to the configuration information; In the case where the data to be transmitted is sensor data, the sensor data is sent to a UWB card reader device through the UWB channel, so that the card reader device uploads the sensor data to a server.

2. The method according to claim 1, characterized in that The acquiring the data to be transmitted through the Bluetooth channel comprises: A connection is established with the handheld device through the Bluetooth channel, and configuration information sent by the handheld device is received, wherein the configuration information is used to configure the system ID of the card reader device.

3. The method according to claim 1, characterized in that The acquiring the data to be transmitted through the Bluetooth channel comprises: According to a preset reading cycle, the sensor data collected by the Bluetooth sensor around the tag is read through the Bluetooth channel.

4. The method according to claim 1, characterized in that: The sending the configuration information to the UWB card reader through the UWB channel comprises: The broadcast signal sent through the UWB channel carries the configuration information and is received and identified by the corresponding UWB card reader device.

5. The method according to claim 1, characterized in that The sending the sensing data to the UWB card reader device through the UWB channel comprises: The ranging signal sent through the UWB channel carries the sensing data, and the sensing data is sent to the UWB card reader device.

6. The method according to claim 5, characterized in that The ranging signal sent through the UWB channel carries the data including: If the sensing data exceeds a preset size, it is divided into a plurality of data packets, and a plurality of continuous ranging signals sent through the UWB channel carry the plurality of data packets.

7. The method according to claim 3, characterized in that The sending the sensing data to the UWB card reader device through the UWB channel comprises: The sensor data read each time is identified. If the data read this time is the same as the sensor data last sent to the UWB card reader, the sensor data read this time will not be uploaded. The newly read sensor data will be uploaded only when the sensor data read has changed.

8. The method according to claim 2, characterized in that: After sending the configuration information to the UWB card reader through the UWB channel so that the card reader completes the system configuration of the device in response to the configuration information, the method further includes: In response to the synchronous ranging instruction issued by the handheld device, a synchronous ranging process with the card reader device is started to calculate and obtain a first ranging result; Receiving a second ranging result sent by the card reader through the UWB channel; The first distance measurement result and the second distance measurement result are sent to the handheld device through the Bluetooth channel to complete the position calibration of the card reading device.

9. A multi-channel data transmission device based on UWB, suitable for tag side, characterized in that: The tag has a Bluetooth channel and a UWB channel, and the device includes: A Bluetooth data acquisition module is used to acquire the data to be transmitted through the Bluetooth channel. a configuration information sending module, configured to send the configuration information to a UWB card reader device through the UWB channel when the data to be transmitted is configuration information, so that the card reader device completes device configuration in response to the configuration information; The sensor data sending module is used to send the sensor data to the UWB card reader device through the UWB channel when the data to be transmitted is sensor data, so that the card reader device uploads the sensor data to the server.

10. A tag for multi-channel data transmission based on UWB, characterized in that: The tag includes: a Bluetooth channel circuit, a UWB channel circuit, a microprocessor, and a memory connected to the microprocessor for communication; The microprocessor is communicatively connected with the Bluetooth channel circuit and the UWB channel circuit; The memory stores instructions that can be executed by the microprocessor, and when the instructions are executed by the microprocessor, the method according to any one of claims 1 to 8 can be implemented.

11. A multi-channel data transmission method based on UWB, applicable to the device side, characterized in that: include: Receiving data to be transmitted sent by a tag, the tag having a Bluetooth channel and a UWB channel, and the data to be transmitted is received by the tag through the Bluetooth channel; In a case where the data to be transmitted is configuration information, completing system configuration of the device in response to the configuration information; In the case where the data to be transmitted is sensor data, the sensor data is uploaded to a server.

12. A multi-channel data transmission device based on UWB, suitable for equipment side, characterized in that: include: A receiving module, used for receiving data to be transmitted sent by a tag, wherein the tag has a Bluetooth channel and a UWB channel, and the data to be transmitted is received by the tag through the Bluetooth channel; A configuration module, configured to complete the system configuration of the device in response to the configuration information when the data to be transmitted is configuration information; The uploading module is used to upload the sensor data to the server when the data to be transmitted is sensor data.

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