A communication method based on an extension device and an extension device

Abstract

The application provides a communication method based on an expansion device and the expansion device. Before entering a use occasion, the expansion device is arranged on a terminal device. The expansion device and the terminal device are electrically connected in communication through an interface, and the terminal device communicates with a wireless network through the expansion device. At this time, built-in Internet of Things communication equipment is used to determine transmission parameters suitable for transmission of data information between the expansion device and the wireless network, and then the transmission parameters are used by a wireless network communication equipment to transmit signals. The communication method provided by the application can change data information between the terminal device and the wireless network through the expansion device, so that the data information meets safety rules and communication rules of the wireless network, thereby ensuring that the terminal device can normally communicate.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of network communication, in particular to a communication method based on an extension device and the extension device. BACKGROUND

[0002] Terminal devices usually use wireless networks for communication. Wireless network communication is not only fast, but also has a wide coverage and is convenient to use. However, for some use occasions with safety rules, such as nuclear power plants and other use occasions with electromagnetic safety requirements, there are safety regulations, such as limiting the range of signal transmission power of terminal devices.

[0003] Generally, commonly used terminal devices cannot meet these safety regulations. For example, the power emitted by mobile phones, PCs (personal computers) and the like is relatively large, which can seriously exceed the range of safety regulations. If these terminal devices are directly used in use occasions such as nuclear power plants, the precise instruments in the nuclear power plant can be damaged due to the interference of radio frequency signals, and even more serious consequences such as nuclear pollution can be caused. However, if the terminal devices are turned off when entering the range of the nuclear power plant in order to meet the safety regulations, or terminal devices without radio frequency signal transmission function but only with radio frequency signal receiving function are used, it will cause difficulties for the contact between workers or between workers and the outside world, and affect the normal work of the workers. SUMMARY

[0004] The present application provides a communication method based on an extension device and the extension device to realize normal communication of terminal devices in use occasions with safety regulations.

[0005] In a first aspect, the present application provides a communication method based on an extension device, the method comprising:

[0006] The extension device is electrically connected to a terminal device through an interface, and data information is transmitted between the extension device and the terminal device.

[0007] The extension device determines transmission parameters for transmitting data information between the extension device and a wireless network through a built-in Internet of Things (IoT) communicator, the transmission parameters conforming to preset safety regulations of an environment where the terminal device is located and communication regulations of the wireless network, wherein the signal transmission power of the IoT communicator conforms to the preset safety regulations of the environment where the terminal device is located.

[0008] The extension device transmits the data information transmitted by the terminal device to the extension device to the wireless network according to the transmission parameters through a built-in wireless network communicator.

[0009] In a second aspect, the present application provides an extension device, the device comprising:

[0010] The shell, the system processor, the interface, the national secret chip, the wireless network communicator, the Internet of Things communicator, the interface converter and the battery are arranged in the interior of the shell.

[0011] The system processor, the interface, the national secret chip, the wireless network communicator, the Internet of Things communicator, the interface converter and the battery are arranged in the interior of the shell.

[0012] The interface, the national secret chip, the wireless network communicator, the Internet of Things communicator, the interface converter and the battery are electrically connected with the system processor.

[0013] The interface, the national secret chip, the wireless network communicator, the Internet of Things communicator, the interface converter are electrically connected with the battery.

[0014] From the above technology, the application provides a communication method based on an expansion device and an expansion device. Before entering a use occasion, the expansion device is arranged on a terminal device, wherein the expansion device is electrically connected with the terminal device through an interface for communication, and the terminal device communicates with a wireless network through the expansion device. At this time, the transmission parameters suitable for transmitting data information between the expansion device and the wireless network can be determined by using the Internet of Things communicator built in the expansion device, and then the signal is transmitted by using the transmission parameters by the wireless network communicator. The communication method provided by the application can change the data information between the terminal device and the wireless network through the expansion device, so that the data information meets the safety rules and the communication rules of the wireless network, thereby ensuring that the terminal device can normally communicate. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the application, the drawings needed in the embodiments will be briefly introduced below. Obviously, other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0016] Figure 1 A flow chart of a communication method based on an expansion device provided by an embodiment of the application;

[0017] Figure 2 A structural schematic diagram of an expansion device provided by an embodiment of the application;

[0018] Figure 3 An installation schematic diagram of an expansion device provided by an embodiment of the application;

[0019] Figure 4 An installation schematic diagram of an expansion device provided by an embodiment of the application;

[0020] Figure 5An internal structure diagram of an extension device component bin provided by an embodiment of the present application is shown in the figure;

[0021] Figure 6 A flow chart of a method for setting a wireless network communicator provided by an embodiment of the present application is shown in the figure;

[0022] Figure 7 A flow chart of a method for interface conversion provided by an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0024] Terminal devices usually communicate using wireless networks. Wireless network communication is not only fast, but also has a wide coverage and is convenient to use. However, for some use occasions with safety rules, such as use occasions with electromagnetic safety requirements such as nuclear power plants, there are safety regulations, such as limiting the range of signal transmission power of terminal devices.

[0025] Generally, commonly used terminal devices cannot meet these safety regulations. For example, the power emitted by mobile phones, PCs (personal computers) and the like is relatively large, which can seriously exceed the range of safety regulations. If these terminal devices are directly used in use occasions such as nuclear power plants, the precise instruments in the nuclear power plant can be damaged due to the interference of radio frequency signals, and even more serious consequences such as nuclear pollution can be caused. However, if the terminal devices are turned off when entering the range of the nuclear power plant in order to meet the safety regulations, or terminal devices without radio frequency signal transmission function but only with radio frequency signal receiving function are used, it will cause difficulties in the communication between workers or between workers and the outside world, and affect the normal work of the workers.

[0026] In order to solve the above problems, the present application provides a communication method based on an extension device, which can be applied to terminal devices such as mobile phones, PCs (personal computers), iPads, AI devices and the like whose communication parameters do not meet the safety regulations of the current environment.

[0027] Figure 1 A flow chart of a communication method based on an extension device provided by an embodiment of the present application is shown in the figure, and the method comprises the following steps:

[0028] S1, the extension device is electrically connected with the terminal device through the interface provided by the extension device, and data information is transmitted between the extension device and the terminal device.

[0029] S2, the extension device determines the transmission parameter of the data information transmission between the extension device and the wireless network through the built-in Internet of Things communicator, the transmission parameter conforms to the preset safety rules of the environment where the terminal device is located and the communication rules of the wireless network, wherein the signal transmission power of the Internet of Things communicator conforms to the preset safety rules of the environment where the terminal device is located.

[0030] S3, the extension device transmits the data information transmitted by the terminal device to the extension device to the wireless network according to the transmission parameter through the built-in wireless network communicator.

[0031] After the terminal device enters the environment with the preset safety rules, the extension device is set on the terminal device before use. Generally, the extension device is a device externally connected to the terminal device, so it can be freely detached according to actual needs. For example, Figure 2 The structure diagram of the extension device provided by the embodiment of the application is shown in Figure 2 The extension device includes a shell 1 composed of a back plate 11, an edge 12, an interface 13 and a device compartment 14. The terminal device is taken as a mobile phone, as shown in Figure 3 and 4 The installation diagram of the extension device provided by the embodiment of the application can be seen, the mobile phone is placed parallel to the back plate 11, and the mobile phone is placed between the two edges 12, inserted into the shell formed by the back plate 11 and the edge 12 in a sliding manner, and electrically connected to the interface 13 through the jack on the mobile phone.

[0032] After the setting of the extension device is completed, the terminal device can communicate with the wireless network through the extension device. Specifically, the extension device can communicate with the wireless network, and the extension device can communicate with the terminal device through electrical connection. As known from the above, the radio frequency information emitted by the terminal device is difficult to meet the safety rules, so avoiding the terminal device from directly emitting the radio frequency signal is the key to solve the problem, and the embodiment adopts the mode that the extension device replaces the terminal device to send the radio frequency signal to the wireless network to avoid the terminal device from directly emitting the radio frequency signal to the wireless network. However, the terminal device needs to transmit the data information to be transmitted to the extension device, and this process also needs to be strictly controlled to avoid the generation of the radio frequency signal. Therefore, the electrical connection transmission mode is adopted, and the terminal device directly transmits the data signal to the extension device through the interface. At the same time, the electrical connection transmission mode can also improve the data transmission rate.

[0033] Figure 5 The internal structure diagram of the device compartment in the extension device provided by the embodiment of the application is shown in Figure 5As shown, the device bin includes at least a system processor 141, a battery 144, a wireless network communicator 146, and an Internet of Things communicator 143, wherein the system processor 141 is connected with the battery 144, the wireless network communicator 146, and the Internet of Things communicator 143 respectively, and the system processor 141 can be a Linux processor. Meanwhile, the wireless network communicator 146 is a Wi-Fi module, and the Internet of Things communicator 143 is an IoT module, and the wireless network communicator 146 and the Internet of Things communicator 143 are coupled with at least one antenna respectively. The wireless network communicator 146 receives electromagnetic wave signals on a wireless network channel via the antenna, and performs filtering and demodulation on the received signals, and the wireless network communicator 146 performs modulation and amplification on signals to be sent, and sends the signals on the wireless network channel via the at least one antenna, so that the extension device has the capability of communicating with a wireless access point AP on a wireless network channel (Wi-Fi channel). The Internet of Things communicator 143 receives electromagnetic wave signals on an Internet of Things channel via the antenna, and performs filtering and demodulation on the received signals, and sends the signals on the Internet of Things channel via the at least one antenna, so that the extension device has the capability of communicating with the AP on the Internet of Things channel (IoT channel). Thus, the extension device of the embodiment of the application can communicate with one or more APs on the Wi-Fi channel and / or the IoT channel simultaneously.

[0034] In one embodiment, when the extension device has multiple antennas, each antenna can be used to cover a single or multiple communication frequency bands. Different antennas can be coupled with the wireless network communicator 146 or the Internet of Things communicator 143 respectively, or can be coupled with the wireless network communicator 146 and the Internet of Things communicator 143 simultaneously, and provide signal transceiving capability for the wireless network communicator 146 and the Internet of Things communicator 143 by frequency division multiplexing or time division multiplexing.

[0035] Correspondingly, the wireless access point AP in the application includes at least a wireless network communicator (Wi-Fi module), an Internet of Things communicator (IoT module), and at least one antenna for transceiving wireless signals. The wireless access point AP can be a base station, the wireless network communicator is coupled with at least one antenna, receives electromagnetic wave signals on a Wi-Fi channel via the antenna, and sends electromagnetic wave signals on the Wi-Fi channel via the at least one antenna, so that the AP has the capability of communicating with an extension device on the Wi-Fi channel. The Internet of Things communicator is coupled with at least one antenna, receives electromagnetic wave signals on an Internet of Things channel via the antenna, and sends electromagnetic wave signals on the Internet of Things channel via the at least one antenna, so that the AP has the capability of communicating with the extension device on the Internet of Things channel. Thus, the AP of the embodiment of the application can communicate with one or more extension devices on the Wi-Fi channel and / or the IoT channel simultaneously.

[0036] In an actual application scenario, the deployment area of the industrial Internet of Things is divided into a plurality of different power level areas according to preset safety rules, each power level area makes different restrictions on the transmission power of the AP and the terminal device, so as to protect the devices in the area from electromagnetic interference and damage. Correspondingly, the APs in the embodiment of the present application are distributed in different power level areas, and each power level area is covered by at least one AP to ensure that the terminal devices in the area can communicate with the AP without dead angle. Correspondingly, the terminal devices can communicate with the APs in different areas. In order to ensure that the signals transmitted by the terminal devices meet the preset safety rules, the power of the signals transmitted by the terminal devices needs to be adjusted by the expansion device.

[0037] The wireless network and the Internet of Things network described above are implemented by a wifi access point and an Internet of Things access point respectively. Preferably, in the present application, an Internet of Things module is added to an AP providing wifi access to implement the present application.

[0038] Specifically, as shown in Figure 6 A flow chart of a method for setting a wireless network communicator provided by the embodiment of the present application, the method comprises:

[0039] S111, the expansion device receives the transmission signal power range sent by the base station corresponding to the current position through the Internet of Things communicator;

[0040] S112, the expansion device sets the transmission parameter of the wireless network communicator according to the transmission signal power range.

[0041] Since the terminal device uses a radio frequency signal with high power by default in the wireless network, if the radio frequency signal is directly transmitted using the default power without determining the power range required by the environment, the power range may exceed the preset safety rules. In the embodiment of the present application, the Internet of Things communicator 143 is equivalent to a low-power signal transceiver, which receives the feedback information periodically sent by the base station to obtain the relevant information of the base station, such as the identification of the base station, the safety power range of the current network, etc. The base station here is an AP, which is arranged in different environmental positions, and sets the corresponding safety power range according to the requirements of the position environment, and sends the safety power range to the Internet of Things communicator 143 entering the corresponding environmental position by broadcasting or other methods.

[0042] After the Internet of Things communicator 143 obtains the safety power range of the current network, in order to ensure that the power transmitted by the expansion device is within the safety power range, the device for transmitting the radio frequency signal, i.e. the wireless network communicator, needs to be adjusted to ensure that the power of the radio frequency signal transmitted by the wireless network communicator is within the safety power range.

[0043] In the embodiment, the data information transmitted by the terminal device to the wireless network is defined as first data information, and the data information transmitted by the wireless network to the terminal device is defined as second data information. The first data information and the second data information both need to comply with the communication rule of the wireless network, so as to complete the normal communication between the terminal device and the wireless network.

[0044] Specifically, as shown in Figure 5 The expansion device further includes a system processor 141 and a national secret chip 142, wherein the system processor 141 is electrically connected with the national secret chip 142, and the system processor 141 and the national secret chip 142 are powered by a battery 144.

[0045] Specifically, the system processor 141 receives the first data information transmitted by the terminal device 2 through an interface 13. The interface 13 can be a USB interface, and the system processor 141 can be a Linux processor.

[0046] Further, in order to ensure the communication security between the terminal device 2 and the wireless network, the first data information can be encrypted by the national secret chip 142 to obtain encrypted first data information, so that the encrypted first data information complies with the communication rule of the wireless network. Generally, the wireless network has a pre-set communication rule, for example, the data information entering the wireless network needs to have an encryption form of a national secret algorithm. In the embodiment, since the national secret chip 142 is arranged in the expansion device, the first data information can be encrypted by the national secret algorithm, and the encrypted first data information obtained by the national secret chip 142 can naturally comply with the communication rule of the wireless network.

[0047] Further, the system processor 141 can transmit the encrypted first data information into the wireless network through the wireless network communicator 146 with a transmission parameter complying with a pre-set security rule. At this time, the process of transmitting the first data information from the terminal device 2 to the wireless network can be completed.

[0048] It can be seen that the communication method provided in the application can make the first data information transmitted by the terminal device comply with the communication rule of the wireless network, so as to ensure the normal communication of the terminal device.

[0049] Further, after the wireless network receives the encrypted first data signal, the wireless network will feed back according to the encrypted first data signal, that is, send second data information to the terminal device. The wireless network refers to a server, a cloud platform, etc. communicating with the terminal device through the wireless network.

[0050] The system processor 141 will receive the second data information transmitted by the wireless network through the wireless network communicator 146.

[0051] As can be seen from the above, the wireless network usually has a set communication rule, that is, in order to ensure the security of network information, the transmitted data information is encrypted, and therefore the second data information is actually an encrypted data information, and such encrypted data information cannot be directly used by the terminal device. For example, the wireless network uses a national encryption algorithm to encrypt the data information, and accordingly, the national encryption algorithm needs to be used to decrypt the second data information, so that it can be normally used. Therefore, the system processor 141 needs to use the national encryption chip 142 to decrypt the second data information to obtain decrypted second data information, so that the decrypted second data information meets the use rule of the terminal device. Finally, the system processor sends the decrypted second data information to the terminal device 2 through the interface 13 for use by the terminal device 2, thereby completing the communication between the wireless network and the terminal device 2.

[0052] Usually, in the environment used in the embodiments of the present application, due to more indoor environments or more devices around the terminal device or a target to be positioned by the terminal device is close, for these cases, the GPS positioning used will no longer be accurate. In order to solve the above problem, the extension device can use the Internet of Things communicator 143 for precise positioning.

[0053] Specifically, the extension device sends a positioning signal to the Internet of Things where the terminal device is located through the Internet of Things communicator, and receives positioning information fed back by the Internet of Things.

[0054] After the terminal device generates a positioning demand, it sends a positioning instruction to the extension device through the interface 13, and then the system processor 141 sends a positioning signal to the surrounding Internet of Things through the Internet of Things communicator according to the positioning instruction. After receiving the positioning signal, the target AP feeds back a position feedback signal. At this time, after the system processor 141 receives the position feedback signal through the Internet of Things communicator 143, the distance between the terminal device and the target can be calculated by the time difference between the sending and receiving time instants corresponding to the positioning signal and the position feedback signal and the transmission speed of the radio frequency signal, and the position information is generated. The system processor 141 can send the position information to the terminal device 2 through the interface 13 for use by the user, or upload the position information to the terminal device management platform.

[0055] Further, if the terminal device is a device such as a mobile phone with limited number of interfaces, once the terminal device needs to be charged or transmit data with other devices through electrical connection, the extension device needs to be removed, and the extension device needs to be installed again in the case of needing the extension device. It can be seen that the operation of repeatedly disassembling and assembling the extension device is troublesome, and the extension device and the terminal device are easily damaged. In order to solve the above problem, the interface converter 145 is arranged in the extension device.

[0056] Specifically, as Figure 7 shown, a flow chart of a method of interface conversion provided by an embodiment of the present application is shown, the method comprising:

[0057] S131, the system processor receives an identification signal sent by an external device through the interface converter;

[0058] S132, the system processor determines the working type of the external device according to the identification signal;

[0059] S133, the system processor controls the interface converter to convert to a corresponding connection mode according to the working type, so as to electrically connect the interface of the terminal device and the corresponding interface.

[0060] As Figure 5 shown, if the other end of the interface converter 145 is connected to an external device through the sub-interface 3, and the external device sends a connection signal, such as a charging signal, a data transmission signal, or other identification signals, to the interface converter 145. At this time, the system processor 141 can determine the working type of the external device, such as charging, data transmission, etc., according to these identification signals. If the sub-interface 3 is connected to the interface of the power supply at this time, the system processor 141 needs to control the interface converter 145 to convert to the interface connecting the terminal device 2 and the sub-interface 3; if it is determined that the working type is data transmission, the system processor 141 needs to control the interface converter 145 to convert to the interface connecting the interface 13 and the interface located in the system processor 141.

[0061] From the above technology, the present application provides a communication method based on an expansion device and an expansion device. Before entering the use occasion, the expansion device is first set on the terminal device. The expansion device and the terminal device are electrically connected and communicated through the interface, and the terminal device communicates with the wireless network through the expansion device. At this time, the transmission parameters suitable for transmitting data information between the expansion device and the wireless network can be determined by using the built-in Internet of Things communicator of the expansion device, and then the wireless network communicator transmits signals by using the transmission parameters. The communication method provided by the present application can change the data information between the terminal device and the wireless network through the expansion device, so as to make the data information meet the safety rules and the communication rules of the wireless network, thereby ensuring that the terminal device can normally communicate.

[0062] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

[0063] It is to be understood that the application is not limited to the precise construction herein disclosed and shown in the drawings, and that various changes in shape, size and arrangements of parts can be made without departing from the scope of the application. The scope of the application is limited only by the claims that follow.

Claims

1. A method of communication based on an extension device, characterized in that, The method comprises: The extension device is electrically connected with the terminal equipment through the interface, and data information is transmitted between the extension device and the terminal equipment; the electrical connection between the extension device and the terminal equipment is used to avoid the terminal equipment directly transmitting radio frequency signals to the wireless network; The extension device receives the transmission signal power range sent by the base station corresponding to the current position through the built-in Internet of Things communicator, sets the transmission parameter of the data information transmitted between the built-in wireless network communicator of the extension device and the wireless network according to the transmission signal power range, and the transmission parameter meets the preset safety rules of the environment where the terminal equipment is located and the communication rules of the wireless network, wherein the signal transmission power of the Internet of Things communicator meets the preset safety rules of the environment where the terminal equipment is located; The extension device further comprises a system processor and a national secret chip, and the interface, the Internet of Things communicator, the wireless network communicator and the national secret chip are electrically connected with the system processor; The system processor receives the first data information sent by the terminal equipment through the interface; The system processor encrypts the first data information by using the national secret chip to obtain encrypted first data information, so that the encrypted first data information meets the communication rules of the wireless network; The extension device transmits the encrypted first data information to the wireless network according to the transmission parameter through the built-in wireless network communicator; The extension device cooperatively controls the Internet of Things communicator and the wireless network communicator, so that the radio frequency signal transmission function of the terminal equipment is completely disabled, and only data interaction is performed with the extension device through electrical connection; If the terminal equipment sends a positioning instruction to the extension device through the interface, the extension device sends a positioning signal to the Internet of Things where the terminal equipment is located through the Internet of Things communicator, and receives the positioning information fed back by the Internet of Things.

2. The method of claim 1, wherein, After the system processor encrypts the first data information by using the national secret chip to obtain encrypted first data information, the system processor further comprises: The system processor transmits the encrypted first data information into the wireless network through the wireless network communicator.

3. The method of claim 1, wherein, The method further comprises: The system processor receives the second data information sent by the wireless network through the wireless network communicator.

4. The method of claim 3, wherein, After the system processor receives the second data information sent by the wireless network through the wireless network communicator, the system processor further comprises: The system processor decrypts the second data information by using the national secret chip to obtain decrypted second data information, so that the decrypted second data information meets the use rules of the terminal equipment; The system processor sends the decrypted second data information to the terminal equipment through the interface.

5. The method of claim 1, wherein, The extension device further comprises an interface converter, and the interface converter is electrically connected with the system processor; The system processor receives an identification signal sent by an external device through the interface converter; The system processor determines the working type of the external device according to the identification signal; The system processor controls the interface converter to convert to a corresponding connection mode according to the work type, so that the interface of the terminal device is electrically connected with the corresponding interface.

6. An extension device, characterized by The device comprises: a shell, a system processor, an interface, a national secret chip, a wireless network communicator, an Internet of Things communicator, an interface converter and a battery; The system processor, the interface, the national secret chip, the wireless network communicator, the Internet of Things communicator, the interface converter and the battery are arranged inside the shell; The interface, the national secret chip, the wireless network communicator, the Internet of Things communicator, the interface converter and the battery are electrically connected with the system processor; The interface, the national secret chip, the wireless network communicator, the Internet of Things communicator, the interface converter are electrically connected with the battery; the expansion device is electrically connected with the terminal device to avoid the terminal device directly emitting radio frequency signals to the wireless network; The Internet of Things communicator is used to receive a transmission signal power range sent by a base station corresponding to a current position, and set transmission parameters of data information between the Internet of Things communicator and the wireless network according to the transmission signal power range; The system processor is used to receive first data information sent by the terminal device through the interface, and encrypt the first data information by using the national secret chip to obtain encrypted first data information, so that the encrypted first data information conforms to the communication rule of the wireless network; The wireless network communicator is used to transmit the encrypted first data information to the wireless network according to the transmission parameters; The Internet of Things communicator and the wireless network communicator are used to disable the radio frequency signal transmission function of the terminal device, so that the terminal device only interacts with the expansion device through electrical connection for data interaction; The Internet of Things communicator is also used to locate the terminal device.

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