WO2018157338A1 - Dual-medium complementary communication method, and wireless communication apparatus and system - Google Patents

Abstract

The present invention is applicable to the technical field of near-field wireless transmission, and provided are a dual-medium complementary communication method, and a wireless communication apparatus and system. The method comprises: starting a wireless communication module to connect and communicate with a first wireless communication apparatus; and when wireless connection information about the first wireless communication apparatus cannot be received, receiving, by means of a microphone module, sound wave information sent by the first wireless communication apparatus corresponding to an assigned sound wave device number so as to perform sound wave communication, wherein the sound wave information is N high-frequency sound wave sequences generated according to the sound wave device number and is transmitted by using a first pre-set duration as an interval period, and N is a positive integer greater than or equal to 1. In the present invention, auxiliary radio communication is performed by means of receiving and sending sound waves, so that the robustness of connection is enhanced, the reliability of the operation of a wireless system is effectively improved, and the usage experience is greatly improved.

Description

Dual medium complementary communication method, wireless communication device and system Technical field

The invention belongs to the field of near field wireless transmission technology, and in particular relates to a dual medium complementary communication method, a wireless communication device and a system.

Background technique

People often have the need to find objects in their daily lives, and anti-lost equipment products have also gained popularity. New anti-lost devices can play a very good role in preventing the loss of items. After the release of Bluetooth 4.0, due to its superior power consumption characteristics, it has become the absolute mainstream technology of anti-lost devices. At the same time, thanks to the popularity of the mobile phone platform, and the anti-lost device based on the Bluetooth 4.0 technology of the smart phone, it has been greatly developed and popularized.

When the anti-lost device is used, the anti-lost device is worn on the items, animals or people that need to be prevented from being lost, and the Bluetooth binding of the intelligent terminal is established to establish a signal connection, and the signal strength thereof increases with the distance between the anti-lost device and the intelligent terminal. Large and weak, when the distance is too long, the signal strength is too low or the connection is interrupted can trigger the alarm behavior of both the application and the anti-lost device on the smart terminal, thereby reminding the user to avoid loss. And when it is necessary to find the lost object, the smart terminal can also search for the Bluetooth signal of the target item, and the strength of the searched Bluetooth signal indicates the distance of the lost object. At this time, the anti-lost device can also be established by re-establishing the Bluetooth connection between the two. The alarm sounds, so that it is easy to find the lost property. The anti-lost device has a wide range of uses and obvious effects, and has achieved huge market sales. However, due to the limitation of the stability of the Bluetooth connection itself, the high false alarm rate has always become a hindrance in practical use. In daily life, the main factors affecting the stability of Bluetooth are the following.

1. The difference between intelligent terminal devices is different. Different models have great influence on the stable connection of Bluetooth signals due to different firmware and hardware. Some models often have dozens of consecutive packet loss and tens of seconds of breaks. Linked, while others are very stable, and there are very few breaks and breaks, which makes the adaptation difficult.

2, the human body blocks, in general, the body's blockage can cause 30dB or even higher attenuation, the blockage of two people can cause the Bluetooth signal to completely disconnect within a few meters, and this is unavoidable in use.

3, the interference of the surrounding electromagnetic environment, now WIFI is extremely popular, WIFI and Bluetooth work in the 2.4G Hz spectrum basically coincide, so in densely populated communities and commercial areas, many WIFI nodes will cause more interference to Bluetooth communication, Increased packet loss rate and increased probability of disconnection. The baseband communication work during a telephone call also affects the stability of Bluetooth.

Therefore, in the design of anti-lost equipment products, it is necessary to emphasize the robustness of the Bluetooth connection, and the environment in which the user is located, such as indoors, parks, shopping malls, playgrounds, and open fields, will affect the distance of Bluetooth signal transmission; Bluetooth devices In actual use, its signal value fluctuates greatly, and the anti-lost device has a long connection interval because it has to take care of low power consumption. Generally, the broadcast interval is 500ms to 1000ms, so the strength between two adjacent signals is usually 10-20dB. Jumping between, for example, the signal value received in the first 1 second is -65dB, and it may become -80dB in the next second. Based on the strength of the two signals, the estimated distance may be about 1 meter to 20 meters. Such a sudden change, so the Bluetooth of the anti-lost device is difficult to calculate the distance value according to its intensity. Therefore, the ordinary Bluetooth anti-lost device can not be well adapted to indoor, outdoor and other different living environments, and cannot prevent accidental interference. The influence of factors causes either false positives or slow response, which is not satisfactory to users. These problems become common experience defects of anti-lost devices.

Summary of the invention

The embodiments of the present invention provide a dual-media complementary communication method, a wireless communication device, and a system, so as to solve the problem that the prior art cannot prevent accidental interference factors, causing either a false alarm or a slow response and failing to satisfy the user.

In a first aspect, the dual medium complementary communication method includes:

Initiating a wireless communication module to perform connection communication with the first wireless communication device;

Receiving through the microphone module when the wireless connection information of the first wireless communication device cannot be received The sound wave information sent by the first wireless communication device corresponding to the sound wave device number is allocated for sound wave communication, and the sound wave information is generated by generating N high frequency sound wave sequences according to the sound wave device number, and is cycled by the first preset time period. Emitted, the N is a positive integer greater than or equal to 1.

Further, after the step of receiving, by the microphone module, the sound wave information sent by the first wireless communication device corresponding to the allocated acoustic wave device number to perform the acoustic wave communication, the method further includes:

If the sound wave information sent by the first wireless communication device corresponding to the allocated sound wave device number is not received, and the first wireless communication device cannot be connected by radio within the second preset time period, a loss alarm is performed. The loss alarm includes one or more combinations of an alarm sound, a warning interface, or a vibration of a preset frequency.

Further, after the step of initiating the communication communication between the initiating wireless communication module and the first wireless communication device, the method further includes:

Determining whether the first wireless communication device has been assigned an acoustic device number, and if not, assigning the acoustic device number to the first wireless communication device.

Further, after the step of receiving, by the microphone module, the sound wave information sent by the first wireless communication device corresponding to the sound wave device number to perform sound wave communication, the method further includes:

If the sound wave information sent by the first wireless communication device corresponding to the sound wave device number is received, no loss alarm is performed, and at the same time, attempting to perform radio connection communication with the first wireless communication device.

Further, the step of initiating the communication communication between the initiating wireless communication module and the first wireless communication device specifically includes:

Initiating the wireless communication module to receive the MAC address of the first wireless communication device and the universal unique identification code;

Accessing the cloud server to query whether the MAC address and the universal unique identifier have pairing rights;

If the MAC address and the universal unique identifier have pairing rights and are not connected to other devices, perform radio connection communication with the first wireless communication device.

In a second aspect, the dual medium complementary communication method includes: starting a wireless communication module to perform broadcast to perform connection communication with a second wireless communication device, where the broadcast information includes a MAC address of the local end and a communication Use a unique identification code;

If the wireless communication with the second wireless communication device is disconnected, the buzzer is activated to generate sound wave information for performing sonic communication, and the sound wave information is generated by generating N high frequency sound wave sequences according to the sound wave device number, and is first The preset duration is an interval period transmission, and the N is a positive integer greater than or equal to 1.

Further, after the step of starting the wireless communication module to perform broadcast communication with the second wireless communication device, the method further includes:

Receiving the sound wave device number sent by the second wireless communication device and saving.

Further, before the starting buzzer emits sound wave information, the method further includes:

If the radio communication with the second wireless communication device is disconnected, waiting for the third preset duration while continuing to resume the connection.

Further, after the activation buzzer emits the sound wave information, the method further includes:

The broadcast is continued to connect the second wireless communication device again, and the buzzer is turned off after waiting for the fourth predetermined duration.

In a third aspect, the second wireless communication device includes:

a first communication unit, configured to start a wireless communication module to perform connection communication with the first wireless communication device;

a second communication unit, configured to receive, by the microphone module, sound wave information sent by the first wireless communication device corresponding to the allocated acoustic wave device number to perform sound wave communication when the wireless connection information of the first wireless communication device is not received, the sound wave The information is generated by generating N high frequency sound wave sequences according to the sound wave device number, and transmitting at intervals of a first preset time period, wherein the N is a positive integer greater than or equal to 1.

Further, the device further includes:

The interrupting alarm unit is configured to: if the sound wave information sent by the first wireless communication device corresponding to the allocated sound wave device number is not received, and cannot be connected to the first wireless communication device by radio within a second preset time period, Then, a loss alarm is performed, and the lost alarm includes one or a combination of an alarm sound of a preset frequency, a warning interface, or a vibration.

Further, the device further includes:

a device number allocation unit, configured to determine whether the first wireless communication device has been allocated an acoustic wave device No. If no, the sonic device number is assigned to the first wireless communication device.

Further, the device further includes:

The pseudo interrupt processing unit is configured to: if the sound wave information sent by the first wireless communication device corresponding to the sound wave device number is received, perform a loss alarm and attempt to perform radio connection communication with the first wireless communication device.

Further, the first communication unit specifically includes:

The information receiving module is configured to start the wireless communication module to receive the MAC address of the first wireless communication device and the universal unique identification code;

a permission query module, configured to access the cloud server to query whether the MAC address and the universal unique identifier have pairing rights;

The communication module is configured to perform radio connection communication with the first wireless communication device if the MAC address and the universal unique identifier have pairing rights and are not connected to other devices.

In a fourth aspect, the second wireless communication device includes:

a processor, configured to start a wireless communication module to perform connection communication with the first wireless communication device; and when the wireless connection information of the first wireless communication device cannot be received, receive, by the microphone module, the first wireless communication device corresponding to the allocated acoustic wave device number The sound wave information is sent to perform acoustic wave communication, wherein the sound wave information generates N high frequency sound wave sequences according to the sound wave device number, and is transmitted at intervals of a first preset time period, wherein the N is a positive integer greater than or equal to 1. .

Further, the processor is further configured to: if the sound wave information sent by the first wireless communication device corresponding to the allocated acoustic wave device number is not received within the second preset time period, and cannot pass through the second preset time period When the radio is connected to the first wireless communication device, a loss alarm is performed, and the lost alarm includes one or more combinations of an alarm sound, a warning interface, or a vibration of a preset frequency.

Further, the processor is further configured to determine whether the acoustic device number has been allocated for the first wireless communication device, and if not, allocate the acoustic wave device number to the first wireless communication device.

Further, the processor is further configured to: if the sound wave information sent by the first wireless communication device corresponding to the sound wave device number is received, not performing a loss alarm, and simultaneously attempting to use the first wireless communication The device performs radio connection communication.

Further, the processor is further configured to start the wireless communication module to receive the MAC address of the first wireless communication device and the universal unique identifier; and access the cloud server to query whether the MAC address and the universal unique identifier have the pairing authority; The MAC address and the universal unique identifier have pairing rights and are not connected to other devices, and perform radio connection communication with the first wireless communication device.

In a fifth aspect, the first wireless communication device includes:

a third communication unit, configured to start a wireless communication module to perform broadcast communication with the second wireless communication device, where the broadcast information includes a MAC address of the local end and a universal unique identifier;

a fourth communication unit, configured to: when the wireless communication with the second wireless communication device is disconnected, start the buzzer to generate sound wave information for performing sonic communication, the sound wave information is to generate N high frequency signals according to the sound wave device number The sound wave sequence is transmitted at intervals of a first preset duration, and the N is a positive integer greater than or equal to 1.

Further, the device further includes:

The device number obtaining unit is configured to receive and save the sound wave device number sent by the second wireless communication device.

Further, the device further includes:

The first waiting unit is configured to wait for a third preset duration while continuing to resume the connection if the radio communication with the second wireless communication device is disconnected.

Further, the device further includes:

And connecting a closing unit for continuing to broadcast to connect the second wireless communication device again, and turning off the buzzer after waiting for the fourth predetermined duration.

In a sixth aspect, the first wireless communication device includes: a processor, configured to start a wireless communication module to perform broadcast communication with the second wireless communication device, where the broadcast information includes a MAC address of the local end and a universal unique identifier; If the wireless communication with the second wireless communication device is disconnected, the buzzer is activated to generate sound wave information for performing sonic communication, and the sound wave information is generated by generating N high frequency sound wave sequences according to the sound wave device number, and is first The preset duration is an interval period transmission, and the N is greater than or equal to A positive integer of 1.

Further, the processor is further configured to receive and save the sound wave device number sent by the second wireless communication device.

Further, the processor is further configured to wait for a third preset duration while continuing to resume the connection if the radio communication with the second wireless communication device is disconnected.

Further, the processor is further configured to continue to broadcast to connect the second wireless communication device again, and turn off the buzzer after waiting for a fourth preset duration.

In a seventh aspect, the dual medium complementary communication system includes:

a second wireless communication device as described above, and a plurality of first wireless communication devices as described above;

The second wireless communication device communicates with the first wireless communication device via two media, radio and acoustic.

As can be seen from the foregoing solution, the embodiment of the present invention performs connection communication with the first wireless communication device by starting the wireless communication module; when the wireless connection information of the first wireless communication device cannot be received, the allocated sound wave device is received by the microphone module. The sound wave information sent by the first wireless communication device corresponding to the number is used for sound wave communication, and the sound wave information is generated by generating N high frequency sound wave sequences according to the sound wave device number, and transmitting at intervals of a first preset time period, N is a positive integer greater than or equal to 1. Compared with the prior art, the embodiment of the present invention enhances the connection robustness by utilizing the auxiliary radio communication for receiving and transmitting sound waves, effectively improves the reliability of the radio work, and greatly improves the use experience. .

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below. It is obvious that the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those of ordinary skill in the art in light of the inventive workability.

1 is a schematic diagram of a dual medium complementary communication system according to another embodiment of the present invention;

2 is a flowchart of implementing a dual medium complementary communication method of a second wireless communication device according to an embodiment of the present invention;

3 is a flowchart of implementing a dual medium complementary communication method of a first wireless communication apparatus according to another embodiment of the present invention;

4 is a structural diagram of a second wireless communication apparatus according to another embodiment of the present invention;

FIG. 5 is a structural diagram of a second wireless communication apparatus according to another embodiment of the present invention; FIG.

FIG. 6 is a structural diagram of a first wireless communication apparatus according to another embodiment of the present invention; FIG.

FIG. 7 is a structural diagram of a first wireless communication apparatus according to another embodiment of the present invention.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to explain the technical solution described in the present invention, the following description will be made by way of specific embodiments.

FIG. 1 is a schematic diagram of a system scenario of dual-media complementary communication according to an embodiment of the present invention. For convenience of description, only parts related to the embodiment are shown.

As shown in FIG. 1, the system includes a plurality of first wireless communication devices 2 and a second wireless communication device 1, and the second wireless communication device 1 communicates with the first wireless communication device 2 by radio and acoustic waves. . Wireless methods include, but are not limited to, Bluetooth. The second wireless communication device shown includes, but is not limited to, a smartphone, a tablet, and a tablet. The first wireless communication device 2 includes an anti-lost device.

The second wireless communication device 1 includes a Bluetooth module, a microphone and a speaker, and the processor can control access to the microphone; the first wireless communication device 2 includes a Bluetooth module and a buzzer, and its processor can control access to the buzzer.

The following uses the scenario in which the first wireless communication device 2 is an anti-lost device:

The anti-lost device activates the Bluetooth module to broadcast to perform connection communication with the second wireless communication device 1, The broadcast information includes a first wireless communication device MAC address and a universal unique identification code. The second wireless communication device 1 activates the Bluetooth module to receive the MAC address of the anti-lost device and the universal unique identification code; the access cloud server 3 queries whether the MAC address and the universal unique identifier have the pairing authority; if the MAC address and the universal unique identification The code has the pairing authority and is not connected to other devices, and then performs connection and communication binding with the anti-lost device; after the Bluetooth connection, the sonic device number is allocated to the anti-lost device through pseudo-random calculation. The anti-lost device determines whether the sonic device number has been assigned to the first wireless communication device, and if not, assigns the sonic device number to the first wireless communication device. When the wireless connection information of the first wireless communication device is not received, the sound wave information sent by the first wireless communication device corresponding to the allocated acoustic wave device number is received by the microphone module to perform sound wave communication, and the sound wave information is according to the sound wave device. No. generating a sequence of acoustic signals consisting of three high frequency sound waves of a first preset duration; the first wireless device continues to broadcast to reconnect the second wireless communication device 1 and is turned off after waiting for the fourth predetermined duration The buzzer. The second wireless communication device 1 receives the sound wave information sent by the first wireless communication device corresponding to the sound wave device number through the microphone module; if the sound wave information sent by the first wireless communication device corresponding to the allocated sound wave device number is not received, And failing to connect to the first wireless communication device by radio within a second preset time period, and performing a loss alarm, the loss alarm including one or more combinations of a preset frequency alarm sound, a warning interface or a vibration And if the sound wave information sent by the first wireless communication device corresponding to the sound wave device number is received, no loss alarm is performed, and at the same time, attempting to perform radio connection communication with the first wireless communication device. The first preset duration is a transmission interval period of the high frequency sound wave signal sequence, and the second preset duration is an alarm determination time of the second wireless communication device, and the third preset duration is that the anti-lost device starts after the Bluetooth communication is disconnected. The waiting time of the high frequency buzzer. Preferably, the first preset duration is 5 seconds, the second preset duration is 10-60 seconds, and the third preset duration is 5 seconds. The fourth preset duration is 20-60 seconds.

Wherein, when the first wireless communication device Bluetooth connection is disconnected, the first wireless communication device continues the Bluetooth broadcast, waits for the connection to be restored with the terminal, and after a delay of 5 seconds, according to the assigned acoustic wave device number, three segments are issued according to the specific combination. The high frequency sound wave of the frequency band is separated by 5 seconds. If it waits for 5 seconds after the sound wave is emitted, it will cycle until the total time reaches the third preset time length, and the Bluetooth still has not established a connection. The first wireless communication The device enters the disconnection alarm mode and issues a 4k Hz alarm to alert the user that the anti-lost device has been disconnected. After the Bluetooth connection of the anti-lost device is disconnected and the signal broadcast of the anti-lost device cannot be received, the smart terminal turns on the microphone to capture the high-frequency sound wave of a specific frequency. Here, we use the wavelet transform algorithm for the acoustic wave information. Perform extraction. At this time, if the Bluetooth broadcast or sound wave signal is not searched within the second preset time period, it can be determined that the anti-lost device has been moved away, and the alarm mode is entered after the second preset time period; if the alarm mode is received before entering the alarm mode The broadcast to the anti-lost device, reconnecting or receiving the acoustic signal triggers the second wireless device timer to restart timing and delay the alarm.

The test data shows that the dual-medium complementary hybrid communication mode can make the anti-lost device almost completely avoid false alarms within a distance of 10 meters, and the anti-lost device can ensure the timely validity of the response when it is indeed far away from the loss. As can be seen from the above workflow, this method has a parallel effect in enhancing system reliability, and only when Bluetooth and sound waves are faulty, false alarms are generated, and reliability is improved several times.

The following describes the usage scenario of the system by using the first wireless communication device as the data collection point and the second wireless communication device as the mobile terminal:

The following uses the dual communication mechanism of sound wave and Bluetooth, which is composed of intelligent terminal and data collection point. The intelligent terminal has networking capability, the data collection point is powered by battery, equipped with a Bluetooth transceiver chip and an ultrasonic transmitter, and operates in a low power mode. The intelligent terminal is connected to the data collection point to obtain the data of the collection point in real time. In particular, when the data collection point collects the data of the specific situation or some of the defined events occur, it needs to be reported to the system in time, thus requiring high reliability. Sex,. Generally, only Bluetooth systems are used. When Bluetooth communication is interfered, the communication link cannot be established, which may cause serious control accidents, and the robustness of the system is also affected. Because the system adopts the Sonic Bluetooth dual communication mechanism, the intelligent terminal can always be in the “listening” mode, so that when the terminal node fails to connect, it can transmit through the backup second data link and pass the data through the sound chain. The road is transmitted, and the link is not easily suppressed by radio interference, and the fault point and the fault range can be determined according to the actual connection condition, thereby facilitating accident management.

Another application scenario is that the first wireless communication device and the second wireless communication device are integrated into one device for Beacon positioning:

The existing Beacon positioning is limited by the interference characteristics of the Bluetooth signal itself, which is difficult to implement. The Bluetooth strength is good at close range, and the positioning accuracy can be achieved, but the distance is generally only 1 to 3 meters. In addition, it will be affected by many factors, such as obstacle blocking and reflection, WIFI interference, relative orientation of the device, etc., so the distance to Beacon in iOS system is only immediate, near, far, unknown. The state corresponds to within 20cm, within 1m, outside of 1m and unknown (generally no signal). Beacon's indoor positioning is currently limited by large-scale commercial use. Some of the indoor Beacon positioning technologies that have been commercialized are relying solely on Beacon's Bluetooth signal, but many compromises have been made to achieve positioning. For example, high-density Beacon is used. Density to compensate for the lack of precision, but the cost of maintenance and investment is unacceptable, about every 10-50 square meters of each such density, but in fact, generally 100-200 square meters of shops only need to be equipped 1-2 devices, otherwise it will cause obstacles to the promotion and maintenance. With the positioning method of Bluetooth plus sound wave, the device periodically emits sound waves while emitting Beacon broadcast, and the individual can achieve coverage of about 300 square meters.

FIG. 2 is a flowchart of an implementation process of a dual-media complementary communication method for a second wireless communication device according to another embodiment of the present invention. The execution body of the embodiment is the second wireless communication device 1 in FIG. Details are as follows:

In step S201, the wireless communication module is activated to perform connection communication with the first wireless communication device.

In this embodiment, the second wireless communication device starts the wireless communication module to receive the MAC address of the first wireless communication device and the universal unique identification code; and the access cloud server queries whether the MAC address and the universal unique identification code have the pairing authority; If the MAC address and the universal unique identifier have pairing rights and are not connected to other devices, perform radio connection communication with the first wireless communication device.

Preferably, after step S201, determining whether the first wireless communication device has been allocated sound The wave device number, if not, distributes the sonic device number to the first wireless communication device by pseudorandom calculation.

Preferably, after the step S201, the first wireless connection is disconnected, if the sound wave information sent by the first wireless communication device corresponding to the allocated acoustic wave device number is not received, and the radio connection cannot be made within the second preset time period. To the first wireless communication device, a loss alarm is performed, the loss alarm including one or more combinations of an alarm sound, a warning interface, or a vibration of a preset frequency.

In step S202, when the wireless connection information of the first wireless communication device is not received, the sound wave information sent by the first wireless communication device corresponding to the allocated acoustic wave device number is received by the microphone module to perform sound wave communication, and the sound wave information is Generating N high frequency sound wave sequences according to the sound wave device number, and transmitting at intervals of a first preset time period, wherein the N is a positive integer greater than or equal to 1.

In this embodiment, the first wireless communication device emits sound wave information through a buzzer.

Preferably, if the sound wave information sent by the first wireless communication device corresponding to the sound wave device number is received, no loss alarm is performed, and at the same time, attempting to perform radio connection communication with the first wireless communication device. When the first wireless communication device approaches the smart terminal again, the smart terminal performs Bluetooth reconnection after detecting the Bluetooth broadcast of the first wireless communication device.

The embodiment of the invention enhances the connection robustness by using auxiliary communication for receiving and transmitting sound waves, thereby effectively improving the reliability of the operation of the first wireless communication device, and the sound wave has the advantages of long wavelength and being difficult to be blocked by the human body. When the Bluetooth signal is disconnected, the sound wave is sent to indicate whether the device is nearby, or when the Bluetooth signal RSSI of the device receiving the smart terminal is reduced, the device starts sound wave transmission, and the smart terminal can simultaneously according to the loudness of the sound or The transmission time of the sound determines the distance. The first wireless communication device activates the sound wave emitted by the sounding device, and refers to a sound wave of a specific frequency or a sound wave signal modulated by the data, and preferably uses a high frequency sound wave that is not easily detected by the human ear, and the anti-lost app is detected. RSSI is reduced or lost. Before entering the alarm mode, the microphone can be turned on. When the sound wave of the device is received, it can be determined that the item is still nearby, and the alarm mode can be temporarily disabled. If the Bluetooth and sound waves are not available within the agreed time, Upon receiving, it can be determined that the first wireless communication device has been moved away, and an alarm can be triggered. In this mode, the false alarm rate of the first wireless communication device is reduced. Small, and this way can be used not only for the first wireless communication device, but also for the field of near-field data transmission with high reliability requirements, such as IoT data collection. If the continuity of data is extremely high, simply Relying on a kind of wireless medium of Bluetooth, it is easy to be interfered and easily attacked. If the dual medium transmission of this patent is used, the second medium can be switched or simultaneously used in parallel when the same medium fails, which can double Reliability, extremely difficult to be disturbed.

FIG. 3 is a flowchart of an implementation of a first wireless communication device-side dual-media complementary communication method according to another embodiment of the present invention. The execution body of the embodiment is the first wireless communication device in FIG. as follows:

In step S301, the wireless communication module is activated to perform broadcast communication with the second wireless communication device, and the broadcast information includes a MAC address of the local end and a universal unique identification code.

After the step S301, the method further includes:

Receiving the sound wave device number sent by the second wireless communication device and saving.

In step S302, if the wireless communication with the second wireless communication device is disconnected, the buzzer is activated to generate sound wave information for performing sonic communication, and the sound wave information is generated by generating N high frequency sound wave sequences according to the sound wave device number. And transmitting at intervals of a first preset duration, the N being a positive integer greater than or equal to 1.

Preferably, before the step S302, the method further includes:

If the wireless communication with the second wireless communication device is disconnected, waiting for the first preset duration.

Preferably, after step S302, the method further includes:

The broadcast is continued to connect the second wireless communication device again, and the buzzer is turned off after waiting for the fourth predetermined duration.

The first preset duration is a waiting time for the preset anti-lost device to start the buzzer after the Bluetooth communication is disconnected. Preferably, the first preset duration is 5 seconds, the second preset duration is 10-60 seconds, and the third preset duration is 5 seconds. The fourth preset duration is 20-60 seconds.

Wherein, when the first wireless communication device Bluetooth connection is disconnected, the first wireless communication device continues Bluetooth Broadcast, waiting to resume connection with the terminal, and after a delay of 10 seconds, according to the assigned sonic device number, three-band high-frequency sound waves are emitted according to a specific combination, with an interval of 5 seconds. If waiting for 5 seconds after emitting sound waves, Bluetooth still If the connection is not established, the sound wave signal is sent continuously for the first preset time period. When the fourth preset time period is exceeded, the first wireless communication device enters the disconnection alarm mode, and a 4k Hz alarm sound is issued to remind the user that the first wireless communication device has Disconnected. After the Bluetooth connection of the first wireless communication device is disconnected, and the signal broadcast of the first wireless communication device cannot be received, the smart terminal turns on the microphone to capture the high frequency sound wave of the specific frequency. Here, we use the wavelet transform. The algorithm extracts the sound wave information. At this time, if the Bluetooth broadcast or sound wave signal is not searched within the second preset time period, it can be determined that the first wireless communication device has been moved away, and after this time, the alarm mode is entered; if the alarm mode is received before entering the alarm mode The broadcast of a wireless communication device, reconnecting or receiving an acoustic signal triggers a restart of the timer and delays the alarm.

FIG. 4 shows a composition of a second wireless communication device according to another embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown.

The second wireless communication device includes: a first communication unit 41, a second communication unit 42, an interrupt alarm unit 43, and a device number assignment unit 44.

The first communication unit 41 is configured to start a wireless communication module to perform connection communication with the first wireless communication device.

The second communication unit 42 is configured to receive, by the microphone module, sound wave information sent by the first wireless communication device corresponding to the allocated acoustic wave device number to perform acoustic wave communication when the wireless connection information of the first wireless communication device cannot be received, The sound wave information is generated by generating N high frequency sound wave sequences according to the sound wave device number, and is transmitted at intervals of a first preset time period, wherein the N is a positive integer greater than or equal to 1.

Further, the device further includes:

The interrupting alarm unit 43 is configured to: if the sound wave information sent by the first wireless communication device corresponding to the allocated sound wave device number is not received, and cannot be connected to the first wireless communication device by radio within a second preset time period a loss alarm, which includes an alarm sound of a preset frequency, One or more combinations of warning interfaces or vibrations.

Further, the device further includes:

The device number assigning unit 44 is configured to determine whether the first wireless communication device has been assigned an acoustic device number, and if not, to assign the acoustic device number to the first wireless communication device.

Further, the device further includes:

The pseudo interrupt processing unit 45 is configured to: if receiving the sound wave information sent by the first wireless communication device corresponding to the sound wave device number, do not perform a loss alarm, and at the same time, attempt to perform radio connection communication with the first wireless communication device.

Further, the first communication unit 41 specifically includes:

The information receiving module is configured to start the wireless communication module to receive the MAC address of the first wireless communication device and the universal unique identification code;

a permission query module, configured to access the cloud server to query whether the MAC address and the universal unique identifier have pairing rights;

The communication module is configured to perform radio connection communication with the first wireless communication device if the MAC address and the universal unique identifier have pairing rights and are not connected to other devices.

The second wireless communication device provided in this embodiment may be used in the foregoing corresponding dual-media complementary communication method. For details, refer to the related description of the corresponding embodiment of the second wireless communication device dual-media complementary communication method in FIG. 2, and details are not described herein again.

A person skilled in the art may understand that each unit included in the second wireless communication device embodiment is only divided according to functional logic, but is not limited to the above division, as long as the corresponding function can be implemented; The specific names of the functional units are also for convenience of distinguishing from each other and are not intended to limit the scope of protection of the present application.

FIG. 5 is a diagram showing the configuration of a second wireless communication device according to another embodiment of the present invention. The second wireless communication device provided by the embodiment of the present invention may be used to implement the method corresponding to the embodiment of FIG. 2, Parts related to the embodiments of the present invention are shown, and the specific technical details are not disclosed, please Referring to Figure 2, the corresponding embodiment.

The second wireless communication device 1 includes a processor 51, a wireless communication module 52, and a microphone module 53. The processor 51 is configured to initiate a wireless communication module to perform connection communication with the first wireless communication device; when the first wireless cannot be received When the wireless connection information of the communication device is received, the sound wave information sent by the first wireless communication device corresponding to the allocated acoustic wave device number is received by the microphone module to perform sound wave communication, and the sound wave information is generated by generating N high frequency sound waves according to the sound wave device number. And sequenced and transmitted at intervals of a first preset duration, the N being a positive integer greater than or equal to 1.

Further, the processor 51 is further configured to: if the sound wave information sent by the first wireless communication device corresponding to the allocated sound wave device number is not received, and cannot be connected to the first part by radio within a second preset time period A wireless communication device performs a loss alarm including one or more combinations of an alarm sound, a warning interface, or a vibration of a preset frequency.

Further, the processor 51 is further configured to determine whether the first wireless communication device has been assigned an acoustic device number, and if not, to allocate the acoustic device number to the first wireless communication device.

Further, the processor 51 is further configured to: if receiving the sound wave information sent by the first wireless communication device corresponding to the sound wave device number, do not perform a loss alarm, and at the same time, attempt to perform radio with the first wireless communication device. Connect communication.

Further, the processor 51 is further configured to start the wireless communication module to receive the MAC address of the first wireless communication device and the universal unique identifier; and access the cloud server to query whether the MAC address and the universal unique identifier have the pairing authority; The MAC address and the universal unique identifier have pairing rights, and are not connected to other devices, and perform radio connection communication with the first wireless communication device.

It will be understood by those skilled in the art that the constituent structure shown in FIG. 5 does not constitute a limitation of the second wireless communication device, and may include more or less components than those illustrated, or combine some components or different components. Arrangement.

FIG. 6 shows a composition of a first wireless communication device according to another embodiment of the present invention. For convenience of description, only parts related to the embodiment of the present invention are shown.

The first wireless communication device includes a third communication unit 61, a fourth communication unit 62, a device number acquisition unit 63, a first waiting unit 64, and a connection closing unit 65.

The third communication unit 61 is configured to start a wireless communication module to perform broadcast communication with the second wireless communication device, where the broadcast information includes a MAC address of the local end and a universal unique identifier;

The fourth communication unit 62 is configured to: when the wireless communication with the second wireless communication device is disconnected, start the buzzer to generate sound wave information for performing sonic communication, and the sound wave information is generated according to the sound wave device number to generate N high The frequency sound wave sequence is transmitted at intervals of a first preset duration, and the N is a positive integer greater than or equal to 1.

Further, the device further includes:

The device number obtaining unit 63 is configured to receive and save the sound wave device number sent by the second wireless communication device.

Further, the device further includes:

The first waiting unit 64 is configured to wait for a third preset duration while continuing to resume the connection if the radio communication with the second wireless communication device is disconnected.

Further, the device further includes:

The connection closing unit 65 is configured to continue broadcasting to connect the second wireless communication device again, and close the buzzer after waiting for the fourth predetermined duration.

The first wireless communication device provided in this embodiment may use the dual media complementary communication method of the corresponding first wireless communication device. For details, refer to the dual media complementary communication method of the first wireless communication device. , will not repeat them here.

A person skilled in the art may understand that each unit included in the second wireless communication device embodiment is only divided according to functional logic, but is not limited to the above division, as long as the corresponding function can be implemented; The specific names of the functional units are also for convenience of distinguishing from each other and are not intended to limit the scope of protection of the present application.

FIG. 7 is a block diagram showing the structure of a first wireless communication device according to another embodiment of the present invention. The first wireless communication device provided in the embodiment can be used to implement the method in the corresponding embodiment of FIG. 3. For the convenience of description, only the parts related to the embodiment of the present invention are shown. For details, please refer to FIG. Corresponding to the embodiment.

The first wireless communication device 2 includes: a wireless communication module 71, a buzzer 72, and a processor 73. The processor 73 is configured to start the wireless communication module 71 to broadcast to perform connection communication with the second wireless communication device. The broadcast information includes a MAC address of the local end and a universal unique identifier; if the wireless communication with the second wireless communication device is disconnected, the buzzer 72 is activated to generate sound wave information for sound wave communication, and the sound wave information is according to the sound wave. The device number generates N high frequency sound wave sequences and transmits at intervals of a first preset duration, the N being a positive integer greater than or equal to 1.

Further, the processor 73 is further configured to receive and save the sound wave device number sent by the second wireless communication device.

Further, the processor 73 is further configured to wait for a third preset duration while continuing to resume the connection if the radio communication with the second wireless communication device is disconnected.

Further, the processor 73 is further configured to continue to broadcast to connect the second wireless communication device again, and close the buzzer 72 after waiting for a fourth preset duration.

It will be understood by those skilled in the art that the constituent structure shown in FIG. 7 does not constitute a limitation of the first wireless communication device, and may include more or less components than those illustrated, or combine some components or different components. Arrangement.

In summary, the embodiment of the present invention performs connection communication with the first wireless communication device by starting the wireless communication module; assigning the acoustic wave device number to the first wireless communication device; and not receiving the wireless connection information of the first wireless communication device; At the time, the sound wave information sent by the first wireless communication device corresponding to the sound wave device number is received by the microphone module to perform sound wave communication. Compared with the prior art, the embodiment of the present invention utilizes the auxiliary communication for receiving and transmitting sound waves to enhance connection robustness, effectively improve the reliability of the first wireless communication device, and greatly improve the use experience. .

The embodiments described above are only intended to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the spirit of the technical solutions of the embodiments of the present application. range.

Claims (18)

A dual medium complementary communication method, characterized in that the method comprises: Initiating a wireless communication module to perform connection communication with the first wireless communication device; When the wireless connection information of the first wireless communication device is not received, the sound wave information sent by the first wireless communication device corresponding to the allocated acoustic wave device number is received by the microphone module to perform sound wave communication, and the sound wave information is according to the sound wave device. No. N high frequency sound wave sequences are generated and transmitted at intervals of a first preset duration, the N being a positive integer greater than or equal to 1. The method according to claim 1, wherein after the step of receiving the sound wave information sent by the first wireless communication device corresponding to the assigned acoustic wave device number by the microphone module to perform the acoustic wave communication, the method further includes: If the sound wave information sent by the first wireless communication device corresponding to the allocated sound wave device number is not received, and the first wireless communication device cannot be connected by radio within the second preset time period, a loss alarm is performed. The loss alarm includes one or more combinations of an alarm sound, a warning interface, or a vibration of a preset frequency. The method of claim 1, wherein the step of initiating the communication communication between the wireless communication module and the first wireless communication device further comprises: Determining whether the first wireless communication device has been assigned an acoustic device number, and if not, assigning the acoustic device number to the first wireless communication device. The method according to claim 1, wherein after the step of receiving, by the microphone module, the sound wave information sent by the first wireless communication device corresponding to the sound wave device number to perform sound wave communication, the method further comprises: If the sound wave information sent by the first wireless communication device corresponding to the sound wave device number is received, no loss alarm is performed, and at the same time, attempting to perform radio connection communication with the first wireless communication device. The method of claim 1, wherein the step of initiating the communication communication between the wireless communication module and the first wireless communication device comprises: Initiating the wireless communication module to receive the MAC address of the first wireless communication device and the universal unique identification code; Accessing the cloud server to query whether the MAC address and the universal unique identifier have pairing rights; If the MAC address and the universal unique identifier have pairing rights and are not connected to other devices, perform radio connection communication with the first wireless communication device. A dual medium complementary communication method, characterized in that the method comprises: The wireless communication module is activated to perform broadcast communication with the second wireless communication device, where the broadcast information includes a MAC address of the local end and a universal unique identifier; If the wireless communication with the second wireless communication device is disconnected, the buzzer is activated to generate sound wave information for performing sonic communication, and the sound wave information is generated by generating N high frequency sound wave sequences according to the sound wave device number, and is first The preset duration is an interval period transmission, and the N is a positive integer greater than or equal to 1. The method of claim 6, wherein the step of initiating the wireless communication module to broadcast to perform connection communication with the second wireless communication device further comprises: Receiving the sound wave device number sent by the second wireless communication device and saving. The method according to claim 6, wherein said initiating the buzzer to emit sound wave information further comprises: If the radio communication with the second wireless communication device is disconnected, waiting for the third preset duration while continuing to resume the connection. The method according to claim 6, wherein after the buzzer is activated to emit sound wave information, the method further comprises: The broadcast is continued to connect the second wireless communication device again, and the buzzer is turned off after waiting for the fourth predetermined duration. A second wireless communication device, wherein the second wireless communication device comprises: a first communication unit, configured to start a wireless communication module to perform connection communication with the first wireless communication device; a second communication unit, configured to receive, by the microphone module, a sound wave signal sent by the first wireless communication device corresponding to the allocated sound wave device number when the wireless connection information of the first wireless communication device cannot be received The sound wave information is generated by generating N high frequency sound wave sequences according to the sound wave device number, and transmitting at intervals of a first preset time period, wherein the N is a positive integer greater than or equal to 1. The device of claim 10, wherein the device further comprises: The interrupting alarm unit is configured to: if the sound wave information sent by the first wireless communication device corresponding to the allocated sound wave device number is not received, and cannot be connected to the first wireless communication device by radio within a second preset time period, Then, a loss alarm is performed, and the lost alarm includes one or a combination of an alarm sound of a preset frequency, a warning interface, or a vibration. The device of claim 10, wherein the device further comprises: a device number assigning unit, configured to determine whether the first wireless communication device has been assigned an acoustic wave device number, and if not, assigning the acoustic wave device number to the first wireless communication device; The pseudo interrupt processing unit is configured to not perform a loss alarm if the sound wave information sent by the first wireless communication device corresponding to the sound wave device number is received, and continue to attempt to perform radio connection communication with the first wireless communication device. The device according to claim 11, wherein the first communication unit specifically comprises: The information receiving module is configured to start the wireless communication module to receive the MAC address of the first wireless communication device and the universal unique identification code; a permission query module, configured to access the cloud server to query whether the MAC address and the universal unique identifier have pairing rights; The communication module is configured to perform radio connection communication with the first wireless communication device if the MAC address and the universal unique identifier have pairing rights and are not connected to other devices. A first wireless communication device, wherein the first wireless communication device comprises: a third communication unit, configured to start a wireless communication module to perform broadcast communication with the second wireless communication device, where the broadcast information includes a MAC address of the local end and a universal unique identifier; a fourth communication unit, configured to: when the wireless communication with the second wireless communication device is disconnected, start the buzzer to generate sound wave information for performing sonic communication, the sound wave information is to generate N high frequency signals according to the sound wave device number a sequence of sound waves, and transmitting at intervals of a first preset duration, the N being greater than or equal to A positive integer of 1. The device of claim 14 wherein said device further comprises: The device number obtaining unit is configured to receive and save the sound wave device number sent by the second wireless communication device. The device of claim 14 wherein said device further comprises: The first waiting unit is configured to wait for a third preset duration while continuing to resume the connection if the radio communication with the second wireless communication device is disconnected. The device of claim 16 wherein said device further comprises: And connecting a closing unit for continuing to broadcast to connect the second wireless communication device again, and turning off the buzzer after waiting for the fourth predetermined duration. A dual medium complementary communication system, characterized in that the system comprises: A second wireless communication device according to any one of claims 10 to 13, and a plurality of first wireless communication devices according to any one of claims 14-17; The second wireless communication device communicates with the first wireless communication device via two media, radio and acoustic.

Images