CN115226079A - Data transmission method, device and system and wearable equipment - Google Patents
Data transmission method, device and system and wearable equipment Download PDFInfo
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- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
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Abstract
The application provides a data transmission method, a device, a system and wearable equipment, wherein the method comprises the following steps: the method comprises the steps of acquiring the acquired physiological data of a user at the current moment and the acquired physiological data of the user at the previous moment, determining whether the physiological data of the user changes or not according to the physiological data of the user at the previous moment and the physiological data of the user at the current moment, and broadcasting the physiological data of the user at the current moment if the physiological data of the user changes. In the technical scheme, the updated physiological data are broadcasted in real time, so that the data transmission quantity is reduced, the condition of data loss caused by segmented broadcast transmission of the data is avoided, and the accuracy of data transmission is improved.
Description
Technical Field
The present application relates to the field of data transmission technologies, and in particular, to a data transmission method, apparatus, system, and wearable device.
Background
With the development of internet technology, data can be transmitted from a transmitter to a receiver through wireless communication, for example, two mobile phones can be used as the transmitter and the receiver respectively, and data transmission can be performed between the mobile phones through wireless communication.
In the prior art, when short-distance wireless communication such as bluetooth is used for data transmission, in order to avoid connection between the transmitter and the receiver and reduce the time spent on data transmission, the transmitter can split data to obtain a plurality of subsections, and then directly transmit each field to the receiver in sequence through bluetooth broadcast.
In the prior art, when the transmitter sequentially transmits each field to the receiver through the bluetooth broadcast, the data is easily lost, and once one of the fields is lost, the receiver cannot combine the received other fields into complete data, thereby causing data transmission errors.
Disclosure of Invention
The application provides a data transmission method, a data transmission device, a data transmission system and wearable equipment, which are used for solving the problem that errors are easy to occur in the existing Bluetooth broadcast data transmission.
In a first aspect, an embodiment of the present application provides a data transmission method, which is applied to a wearable device, and includes:
acquiring the acquired physiological data of the user at the current moment and the physiological data of the user at the previous moment;
determining whether the physiological data of the user changes or not according to the physiological data at the previous moment and the physiological data at the current moment;
and if the physiological data of the user changes, broadcasting the physiological data at the current moment.
In a second aspect, an embodiment of the present application provides a data transmission apparatus, including:
the acquisition module is used for acquiring the acquired physiological data of the user at the current moment and the acquired physiological data at the previous moment;
the confirmation module is used for determining whether the physiological data of the user changes or not according to the physiological data at the previous moment and the physiological data at the current moment;
and the broadcasting module is used for broadcasting the physiological data at the current moment if the physiological data of the user changes.
In a third aspect, an embodiment of the present application provides a wearable device, including a data collector, a processor, and a communication component, where the data collector is connected to the processor, and the communication component is connected to the processor;
the data acquisition unit is used for acquiring physiological data of a user at the previous moment and physiological data of the user at the current moment;
the processor is configured to determine whether physiological data of a user has changed;
the communication component is used for broadcasting the physiological data at the current moment when the physiological data of the user changes.
In a fourth aspect, an embodiment of the present application provides a data transmission system, which includes a receiver and the wearable device described above, where the receiver is configured to receive physiological data broadcast by the wearable device.
In a fifth aspect, embodiments of the present application provide a readable storage medium having stored therein computer instructions, which, when run on a wearable device, cause the wearable device to perform the method as described above.
In a sixth aspect, embodiments of the present application provide a computer program product comprising computer programs/instructions that, when executed by a wearable device, implement the method described above.
The data transmission method, the device, the system and the wearable device provided by the embodiment of the application can discover whether the physiological data of the user is updated or not in real time by acquiring the physiological data of the user at different moments, and broadcast the updated physiological data in real time when the physiological data of the user is updated, so that the data transmission quantity is reduced, the condition of data loss caused by segmented broadcast transmission of the data is avoided, and the accuracy of data transmission is improved.
Drawings
Fig. 1 is a schematic view of a first application scenario of a data transmission method according to an embodiment of the present application;
fig. 2 is a schematic view of a second application scenario of the data transmission method according to the embodiment of the present application;
fig. 3 is a schematic flowchart of a first embodiment of a data transmission method according to an embodiment of the present application;
fig. 4 is a schematic flowchart of a second data transmission method according to an embodiment of the present application;
fig. 5 is a schematic data interaction diagram of a data transmission method according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a wearable device provided in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
Fig. 1 is a schematic view of a first application scenario of a data transmission method provided in an embodiment of the present application, where the data transmission method may be applied to a wearable device 11, as shown in fig. 1, data communication may be performed between the wearable device 11 and a target receiver 12, so that data transmission in the wearable device 11 is transferred to the target receiver 12, and further, the target receiver 12 may also transmit an instruction to the wearable device 11 to control the wearable device 11.
The wearable device 11 may be, for example, a bracelet, a helmet, glasses, and the like.
Optionally, fig. 2 is a schematic view of a second application scenario of the data transmission method provided in the embodiment of the present application, and the data transmission method may be applied to the wearable device 21, as shown in fig. 2, in an actual life scenario, a plurality of users may exercise in a certain area (for example, a gymnasium), each user wears one wearable device 21, and the wearable devices 21 respectively acquire physiological data of the corresponding user, then broadcast the physiological data of the corresponding user to the relay device 22, and forward the physiological data to the target receiver 23 by the relay device 22.
Illustratively, the relay device 22 may include a display interface for displaying physiological data of the corresponding user, and the target receiver 23 may be a router.
In the prior art, if data communication is required to be performed between a wearable device and a target receiver, because bluetooth broadcast can carry a small amount of data, the wearable device and the target receiver are mainly identified to the other side through the bluetooth broadcast sending device, when the target receiver receives the bluetooth broadcast, and after the wearable device is identified according to the device identification, matching pairing is performed on the wearable device and the target receiver, a data connection channel is established, and then data transmission can be performed.
In order to solve the above problems, the data transmission method, device, system and wearable device provided by the embodiments of the present application have the following inventive concepts: through the real-time physiological data who gathers the user of wearable equipment, when user's physiological data has the update, just go out the physiological data broadcast of update, can reduce data transmission volume, avoid carrying out segmentation broadcast transmission to data, cause data transmission to make mistakes, improve data transmission's the degree of accuracy.
The technical solution of the present application will be described in detail below with reference to specific examples. It should be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
Fig. 3 is a schematic flowchart of a first embodiment of a data transmission method provided in the present application, where the data transmission method may be applied to a wearable device, and as shown in fig. 3, the data transmission method specifically includes the following steps:
s301, acquiring the acquired physiological data of the user at the current moment and the acquired physiological data of the user at the previous moment.
Illustratively, the physiological data may be heart rate data, blood pressure data, height data, weight data, etc. of the user.
In this embodiment, wearable equipment can integrate various sensors, and after the user wore wearable equipment, the collection of user's physiological data was realized through various sensors of integration in the wearable equipment, and exemplarily, heart rate sensor can once gather user's heart rate data every time a time cycle passes, obtains each user's heart rate state of moment.
Optionally, different time periods may be determined for collecting the physiological data of the user according to the current exercise state of the user, for example, when the user is exercising, if in the high-intensity anaerobic exercise state, a first time period may be determined, and the physiological data of the user is collected once every lapse of the first time period, and if in the low-intensity aerobic exercise state, a second time period may be determined, and the physiological data of the user is collected once every lapse of the second time period, wherein the first time period is shorter than the second time period.
Wherein the first time period may be 2 seconds and the second time period may be 5 seconds.
In this embodiment, the physiological data at the previous time may be one or more of heart rate data, blood pressure data, height data and weight data of the user in the previous 2 seconds or the previous 5 seconds, and the physiological data at the current time is one or more of heart rate data, blood pressure data, height data and weight data of the current user.
It will be appreciated that when the wearable device is not used by the user or removed from a user and worn on the body of another user, the wearable device now has only the current time physiological data and no previous time physiological data, and the previous time physiological data may be defaulted to an initial value, such as zero.
S302, determining whether the physiological data of the user changes or not according to the physiological data at the previous moment and the physiological data at the current moment.
In this embodiment of the application, the physiological data at the previous time and the physiological data at the current time may be compared to determine whether the physiological data at the current time changes relative to the physiological data at the previous time, and if so, determine that the physiological data of the user changes.
For example, the physiological data at the previous moment may be heart rate data of the user 5 seconds ago, and the physiological data at the current moment is current heart rate data of the user.
Optionally, a preset change threshold may be set, the physiological data at the previous moment is compared with the physiological data at the current moment, and when a difference between the physiological data at the previous moment and the physiological data at the current moment exceeds the preset change threshold, it is determined that the physiological data of the user changes. For example, the preset variation threshold may be adaptively adjusted according to the health status of different users.
And S303, if the physiological data of the user changes, broadcasting the physiological data at the current moment.
In the embodiment of the application, the wearable device broadcasts the physiological data of the current moment in a broadcasting mode, and the target receiver within the broadcasting range can receive the physiological data of the current moment without establishing connection with the wearable device.
For example, the wearable device may broadcast the physiological data of the current time by bluetooth broadcast.
In this application embodiment, if user's physiological data includes heart rate data, blood pressure data, height data, weight data, can only broadcast the data that change, exemplarily, when user takes exercise, user's height data and weight data do not change, and heart rate data and blood pressure data change, and at this moment, wearable equipment can only broadcast heart rate data and blood pressure data to the present moment.
The embodiment of the application acquires the physiological data of the user at different moments, and can find whether the physiological data of the user is updated in real time, and when the physiological data of the user is updated, the updated physiological data is broadcasted in real time, so that the data transmission quantity is reduced, the data is prevented from being broadcasted and transmitted in a segmented mode, the condition of data loss is generated, and the accuracy of data transmission is improved.
On the basis of the foregoing embodiment, in some embodiments, the "broadcasting the physiological data at the current time" in the step S303 may be specifically implemented by the following steps:
acquiring a real-time position of a user;
and when the real-time position is within a preset broadcast range, broadcasting the physiological data at the current moment.
In an embodiment of the present application, the wearable device is worn on a body part of the user, so that the real-time location of the user can be determined by determining the real-time location of the wearable device. For example, the wearable device may be located by a Global Positioning System (GPS) to obtain a real-time location of the user.
The preset broadcast range may refer to a range in which the target receiver can receive the broadcast signal, for example, the target receiver may be disposed in a gymnasium, and at this time, the preset broadcast range may be the gymnasium, and when the real-time location of the user is located in the gymnasium, the wearable device broadcasts the physiological data at the current moment, so that the target receiver can receive the broadcast signal.
For example, a plurality of target receivers may be set within the preset broadcast range, and when the wearable device broadcasts the physiological data of the current time, each target receiver may receive the physiological data of the current time.
Further, the target receiver may be a router.
In some embodiments, the "broadcasting the physiological data at the current time" in the step S303 may be specifically implemented by the following steps:
encrypting the physiological data at the current moment according to an encryption strategy to obtain encrypted data;
the encrypted data is broadcast.
The encryption policy is a policy which the wearable device negotiates with a target receiver in advance and is used for data encryption transmission.
Illustratively, when a plurality of receivers exist in a preset broadcast range and it is to be ensured that when the wearable device broadcasts the physiological data of the user, only the target receiver can obtain the physiological data of the user, the physiological data at the current moment can be encrypted through an encryption policy to obtain encrypted data, and then the encrypted data is broadcasted.
Illustratively, the encryption policy includes an encryption key and/or an encryption function, and the step of "encrypting the physiological data at the current time according to the encryption policy to obtain the encrypted data" may specifically be implemented by the following steps:
and encrypting the physiological data at the current moment by using an encryption key and/or an encryption function to obtain encrypted data.
For example, the wearable device may convert the physiological data into a string by encrypting the key and broadcast the string, and the target receiver may decrypt the string into the physiological data after receiving the string in the broadcast according to the encrypted key.
For example, the wearable device may perform algorithm processing on the physiological data through an encryption function, such as multiplication, accumulation, and the like, to obtain a calculation result, and broadcast the calculation result, and the target receiver decrypts the calculation result according to the encryption function after receiving the calculation result in the broadcast, to obtain the physiological data.
In the embodiment of the application, when the wearable device broadcasts, because no longer match with the receiver and pair, the receiver that is in the broadcast scope can both receive wearable device's broadcast signal, from it obtain user's physiological data, encrypt user's physiological data through encryption strategy, can make other receivers can't decrypt encrypted data, obtain user's physiological data, and only the target receiver who negotiates in advance with wearable device can decrypt encrypted data, obtain user's physiological data, thereby data transmission's security has been improved.
In some embodiments, the step of "broadcasting the encrypted data" may be specifically implemented by the following steps:
and packaging the encrypted data to a broadcast packet of the wearable device, and broadcasting the broadcast packet.
In this application embodiment, wearable equipment can broadcast through the bluetooth, and when wearable equipment's bluetooth was opened, wearable equipment just can be continuous go out with the broadcast package broadcast among them, and the physiological data of current moment after the encryption can directly be packed into in the broadcast package with broadcasting.
In some embodiments, the above method further comprises the steps of:
and acquiring an alarm signal sent by the target receiver, and carrying out alarm prompt according to the alarm signal.
The alarm signal is used for indicating that the physiological data at the current moment exceed a preset critical value. The alarm signal is sent to the wearable device by the target receiver according to the physiological data of the user at the current moment.
For example, the target receiver may send the alarm signal to the wearable device in a broadcast manner, and for example, the physiological data is heart rate data of the user, the preset critical values include a maximum critical value and a minimum critical value, and when the target receiver detects that the heart rate data of the user at the current time exceeds the maximum critical value or the minimum critical value, the alarm signal is sent to the wearable device to prompt the wearable device to alarm.
Illustratively, the alert prompt may be at least one of an audible prompt, a vibratory prompt, a light source blinking prompt, and a text prompt.
In some embodiments, if the physiological data includes blood oxygen data and/or heart rate data, the step S301 may specifically include the following steps:
the method comprises the steps of collecting blood oxygen and/or heart rate of a user according to a preset time interval, and obtaining blood oxygen data and/or heart rate data of the collected user at the current moment and blood oxygen data and/or heart rate data of the user at the previous moment.
For example, the preset time interval may be 5 seconds, that is, every 5 seconds, the wearable device acquires blood oxygen and/or heart rate of the user to obtain blood oxygen data and/or heart rate data of the user at the current time, and the blood oxygen data and/or heart rate data of the previous 5 seconds are used as the blood oxygen data and/or heart rate data of the previous time.
Exemplarily, fig. 4 is a schematic flow chart of a second data transmission method provided in an embodiment of the present application, and the data transmission method is applied to a gymnasium scene, as shown in fig. 4, the data transmission method includes the following steps:
s401, intercepting exercise data.
Specifically, the user wears wearable equipment to take exercise, and exemplarily, wearable equipment can be the bracelet, and the bracelet can be intercepted user's present exercise data, and under the gymnasium scene, user's physiological data indicates exercise data promptly, and the bracelet can be according to preset time interval, every through a preset time interval, user's exercise data of intercepting.
S402, whether the exercise data is updated or not.
Specifically, the bracelet can gather the exercise data of last moment and the exercise data of present moment according to the time interval that predetermines to confirm whether user's exercise data has the update, when not updating, then continue to take exercise the intercepting of data.
And S403, encrypting data.
Specifically, the bracelet encrypts the exercise data through an encryption policy, wherein the encryption policy is a policy for data encryption transmission that is negotiated in advance by the bracelet and the target receiver.
S404, the encrypted data are filled in the Bluetooth broadcast packet.
For example, the wearable device may broadcast the bluetooth broadcast packet using bluetooth, and when the exercise data is updated, the wearable device fills the encrypted exercise data into the bluetooth broadcast packet.
S405, refreshing broadcasting.
Specifically, after having filled in the encryption data in the bluetooth broadcast package, wearable equipment refreshes the broadcast to the bluetooth broadcast package broadcast that will fill in the encryption data goes out.
S406, whether to continue the exercise.
Specifically, when the user continues to take exercise, the exercise data of the user can be continuously intercepted, so that the exercise data of the user in the whole exercise process can be monitored, and the user can stop intercepting the exercise data of the user if the user does not take exercise any more.
Fig. 5 is a schematic data interaction diagram of a data transmission method according to an embodiment of the present application, which relates to a process of data transmission between a wearable device and a target receiver. In this embodiment, a bluetooth device is taken as an example of a target receiver, and a method in the embodiment of the present application is described, as shown in fig. 5, the method includes the following steps:
s501, detecting whether the exercise data is updated.
Specifically, taking exercise data as the physiological data of the user as an example, the exercise data of the user during the exercise process includes heart rate data, step number, blood oxygen data, and the like, and the wearable device acquires the exercise data of the user in real time to determine whether the exercise data is updated.
And S502, encrypting data.
Specifically, when the exercise data is updated, the exercise data is encrypted, and for example, the exercise data may be encrypted by the above encryption policy.
And S503, updating the encrypted data into the broadcast data packet.
Specifically, the wearable device broadcasts the broadcast data packet, and the encrypted data updated to the broadcast data packet is also broadcast.
And S504, starting broadcast data monitoring.
Specifically, the bluetooth equipment can scan the broadcast signal within the preset range in a scanning mode to acquire the broadcast data packet broadcasted by the wearable equipment, so that the encrypted data is extracted.
And S505, decrypting the data.
The bluetooth equipment can decrypt the encrypted data through the encryption strategy negotiated in advance with the wearable equipment to obtain the exercise data of the user.
And S506, processing exercise data.
For example, the bluetooth device may compare the exercise data with a preset critical value, determine whether the exercise data of the user at the current moment exceeds the preset critical value, and when the exercise data exceeds the preset critical value, may send an alarm signal to the wearable device, and the wearable device gives an alarm prompt to the user.
The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.
Fig. 6 is a schematic structural diagram of a data transmission device provided in an embodiment of the present application, and optionally, the data transmission device may be integrated in a wearable device, or may be independent of the wearable device and cooperate with the wearable device to implement the technical solution of the present application, as shown in fig. 6, the data transmission device 60 includes an obtaining module 61, a confirming module 62, and a broadcasting module 63.
The obtaining module 61 is configured to obtain the collected physiological data of the user at the current time and the physiological data of the user at the previous time. The confirmation module 62 is configured to determine whether the physiological data of the user changes according to the physiological data at the previous time and the physiological data at the current time. The broadcasting module 63 is configured to broadcast the physiological data of the current time if the physiological data of the user changes.
In some embodiments, the broadcasting module 63 may be specifically configured to:
acquiring a real-time position of a user;
and when the real-time position is within a preset broadcast range, broadcasting the physiological data at the current moment.
Optionally, in some embodiments, the broadcasting module 63 may specifically be configured to:
encrypting the physiological data at the current moment according to an encryption strategy to obtain encrypted data, wherein the encryption strategy is a strategy for data encryption transmission negotiated by the wearable device and the target receiver in advance;
the encrypted data is broadcast.
Optionally, in some embodiments, if the encryption policy includes an encryption key and/or an encryption function, the broadcast module 63 may specifically be configured to:
and encrypting the physiological data at the current moment by using an encryption key and/or an encryption function to obtain encrypted data.
Optionally, in some embodiments, the broadcasting module 63 may specifically be configured to:
and packaging the encrypted data into a broadcast packet of the wearable device, and broadcasting the broadcast packet.
In some embodiments, the data transmission apparatus further includes an alarm module, configured to:
and acquiring an alarm signal sent by the target receiver, and carrying out alarm prompt according to the alarm signal.
The alarm signal is used for indicating that the physiological data at the current moment exceed a preset critical value.
In some embodiments, if the physiological data includes blood oxygen data and/or heart rate data, the acquiring module 61 may be specifically configured to:
acquiring the blood oxygen and/or heart rate of a user according to a preset time interval, and acquiring the blood oxygen data and/or heart rate data of the user at the current moment and the blood oxygen data and/or heart rate data of the user at the previous moment.
It should be noted that the division of the modules of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can all be implemented in the form of software invoked by a processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the obtaining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and a processing element of the apparatus calls and executes the functions of the obtaining module. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element here may be an integrated circuit with signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
Fig. 7 is a schematic structural diagram of a wearable device provided in an embodiment of the present application, and as shown in fig. 7, the wearable device 70 includes a data collector 71, a processor 72, and a communication component 73, where the data collector 71 is connected to the processor 72, and the communication component 73 is connected to the processor 72;
the data collector 71 is used for collecting the physiological data of the user at the previous moment and the physiological data of the user at the current moment. The processor 72 is used to determine whether the physiological data of the user has changed. The communication component 73 is used for broadcasting the physiological data at the current time when the physiological data of the user changes.
For example, the processor may be a general-purpose processor, including a central processing unit CPU, a Network Processor (NP), and the like; but also a digital signal processor DSP, an application specific integrated circuit ASIC, a field programmable gate array FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components.
Optionally, an embodiment of the present application further provides a data transmission system, which includes a target receiver and the wearable device described above, where the target receiver is configured to receive physiological data broadcast by the wearable device.
Optionally, an embodiment of the present application further provides a readable storage medium, in which computer instructions are stored, and when the readable storage medium is run on a wearable device, the wearable device is caused to perform the method as described above.
Optionally, the present application further provides a computer program product, and when executed by a wearable device, the computer program/instructions implement the method described above.
In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship; in the formula, the character "/" indicates that the preceding and following related objects are in a relationship of "division". "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for convenience of description and distinction and are not intended to limit the scope of the embodiments of the present application. In the embodiment of the present application, the sequence numbers of the above-mentioned processes do not mean the sequence of execution, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (12)
1. A data transmission method is applied to wearable equipment and comprises the following steps:
acquiring the acquired physiological data of the user at the current moment and the physiological data of the user at the previous moment;
determining whether the physiological data of the user changes or not according to the physiological data at the previous moment and the physiological data at the current moment;
and if the physiological data of the user are changed, broadcasting the physiological data at the current moment.
2. The method of claim 1, wherein the broadcasting the physiological data for the current time comprises:
acquiring the real-time position of the user;
and when the real-time position is within a preset broadcast range, broadcasting the physiological data at the current moment.
3. The method of claim 1 or 2, wherein said broadcasting the physiological data for the current time comprises:
encrypting the physiological data at the current moment according to an encryption strategy to obtain encrypted data, wherein the encryption strategy is a strategy used for data encryption transmission and negotiated by the wearable device and a target receiver in advance;
and broadcasting the encrypted data.
4. The method according to claim 3, wherein the encryption policy includes an encryption key and/or an encryption function, and the encrypting the physiological data at the current time according to the encryption policy to obtain encrypted data includes:
and encrypting the physiological data at the current moment by using the encryption key and/or the encryption function to obtain the encrypted data.
5. The method of claim 3, wherein the broadcasting the encrypted data comprises:
and packaging the encrypted data into a broadcast packet of the wearable device, and broadcasting the broadcast packet.
6. The method of claim 3, wherein after the broadcasting of the encrypted data, the method further comprises:
acquiring an alarm signal sent by the target receiver, wherein the alarm signal is used for indicating that the physiological data at the current moment exceeds a preset critical value;
and carrying out alarm prompt according to the alarm signal.
7. The method of claim 1, wherein the physiological data comprises blood oxygen data and/or heart rate data, and the acquiring the acquired physiological data of the user at the current time and the physiological data at the previous time comprises:
the method comprises the steps of collecting blood oxygen and/or heart rate of a user according to a preset time interval, and obtaining blood oxygen data and/or heart rate data of the collected user at the current moment and blood oxygen data and/or heart rate data of the user at the previous moment.
8. A data transmission apparatus, comprising:
the acquisition module is used for acquiring the acquired physiological data of the user at the current moment and the acquired physiological data at the previous moment;
the confirmation module is used for determining whether the physiological data of the user changes or not according to the physiological data at the last moment and the physiological data at the current moment;
and the broadcasting module is used for broadcasting the physiological data at the current moment if the physiological data of the user changes.
9. The wearable device is characterized by comprising a data collector, a processor and a communication component, wherein the data collector is connected with the processor, and the communication component is connected with the processor;
the data acquisition unit is used for acquiring physiological data of a user at the previous moment and physiological data of the user at the current moment;
the processor is used for determining whether the physiological data of the user is changed;
the communication component is used for broadcasting the physiological data of the current moment when the physiological data of the user changes.
10. A data transmission system comprising a target receiver and a wearable device as claimed in claim 9, said target receiver being arranged to receive physiological data broadcast by said wearable device.
11. A readable storage medium having stored therein computer instructions, which when run on a wearable device, cause the wearable device to perform the method of any of claims 1-7.
12. A computer program product comprising computer program/instructions, characterized in that the computer program/instructions, when executed by a wearable device, implement the method of any of claims 1-7.
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