Portable image transmission intercom communication device, intercom group and communication system based on lpwan autonomous network technology in no-network scene

Abstract

The application relates to a portable image transmission intercom communication device based on an LPWAN autonomous network technology, an intercom group and a communication system. First intercom data comprises at least one of voice data and image data. The device comprises a first communication module, a data processing module and a second communication module. The first communication module is used for receiving first intercom data sent by the remaining intercom communication devices in the intercom group. Each intercom communication device in the intercom group belongs to the same LPWAN. The data processing module is connected with the first communication module and is used for determining target intercom data from each first intercom data and processing the target intercom data. The target intercom data is intercom data sent by an intercom communication device belonging to the same target intercom group in the intercom group. The second communication module is connected with the data processing module and is used for connecting with a communication device and sending the processed target intercom data to the communication device. The device can realize long-distance communication.

Description

Technical Field

[0001] This application relates to the field of walkie-talkie technology, and in particular to a portable video transmission walkie-talkie communication device, walkie-talkie group, and communication system for network-free scenarios based on LPWAN autonomous network technology. Background Technology

[0002] Walkie-talkies are a universal wireless communication tool. Compared to mobile phones, they are not limited by network coverage and allow multiple people to receive information simultaneously. They are the primary communication tool when mobile networks are unavailable or interrupted.

[0003] However, the walkie-talkies in this technology can only conduct voice communication over short distances, which is insufficient to meet the actual needs of relevant technical personnel. Utility Model Content

[0004] Therefore, it is necessary to address the aforementioned technical issues by providing a portable video transmission intercom communication device, intercom group, and communication system for network-free scenarios based on LPWAN autonomous network technology, capable of long-distance communication.

[0005] Firstly, this application provides a portable image transmission and intercom communication device for offline scenarios based on LPWAN autonomous network technology, the device comprising:

[0006] The first communication module is used to receive first intercom data sent by other intercom communication devices in the intercom group; each intercom communication device in the intercom group is adapted to support LPWAN autonomous network technology, wherein the first intercom data includes at least one of voice data and image data.

[0007] A data processing module, connected to the first communication module, is used to determine target intercom data from each of the first intercom data and process the target intercom data; the target intercom data is intercom data sent by intercom communication devices belonging to the same target intercom group in the intercom group as the intercom communication device.

[0008] The second communication module is connected to the data processing module and is used to connect to the communication device and send the processed target intercom data to the communication device.

[0009] In one embodiment, the data processing module is further configured to receive an identification code sent by the communication device through the second communication module, the identification code being used to determine the intercom data sent by an intercom communication device belonging to the same intercom group as the intercom communication device.

[0010] In one embodiment, the first intercom data includes an identification code; the data processing module is further configured to demodulate the first intercom data, obtain the identification code of the first intercom data, and determine the first intercom data whose identification code meets preset conditions as the target intercom data.

[0011] In one embodiment, the first communication module includes:

[0012] Self-organizing network unit, used to support the low power wide area network, so that the intercom communication device belongs to the intercom group;

[0013] A communication antenna is provided for receiving first intercom data sent by other intercom communication devices in the intercom group.

[0014] In one embodiment, the device further includes:

[0015] The housing contains the first communication module, the data processing module, and the second communication module, all of which are located inside the housing.

[0016] In one embodiment, the device further includes:

[0017] At least one electrical interface is provided, which is connected to the first communication module, the data processing module, and the second communication module respectively. The electrical interface is used to connect to the communication device so as to supply power to the first communication module, the data processing module, and the second communication module through the communication device.

[0018] In one embodiment, the second communication module is further configured to receive second intercom data sent by the communication device, the data processing module is further configured to perform modulation and encryption processing on the second intercom data, and the first communication module is further configured to send the second intercom data after modulation and encryption processing to the other intercom communication devices in the intercom group.

[0019] In one embodiment, the data processing module includes:

[0020] A modulation and demodulation unit is connected to the first communication module and the second communication module respectively, and is used to demodulate the first intercom data;

[0021] The encryption / decryption unit is connected to the modulation / demodulation unit, the first communication module, and the second communication module, respectively, and is used to determine the target intercom data from each of the first intercom data after demodulation processing, and to decrypt the target intercom data according to a preset encryption / decryption algorithm.

[0022] Secondly, this application also provides a walkie-talkie group, which includes a plurality of walkie-talkie communication devices as described in any of the above embodiments.

[0023] Thirdly, this application also provides a communication system, which includes multiple communication devices and multiple intercom communication devices as described in any of the above embodiments.

[0024] The aforementioned portable video transmission intercom communication device, intercom group, and communication system for network-free scenarios based on LPWAN autonomous network technology includes a first communication module, a data processing module, and a second communication module. The first communication module can receive first intercom data sent by other intercom communication devices in the intercom group. Each intercom communication device in the intercom group belongs to the same low-power wide area network that supports LPWAN autonomous network technology. The first intercom data includes at least one of voice data and image data. Based on LPWAN autonomous network technology, long-distance communication between the intercom communication devices in the intercom group can be achieved. After receiving the first intercom data sent by other intercom communication devices in the intercom group, the first communication module can determine the target intercom data sent by intercom communication devices in the same target intercom group from the first intercom data, process the target intercom data, and then send the processed target intercom data to a communication device, such as a mobile phone, through the second communication module for the mobile phone to read the target intercom data. The intercom communication device of this application is based on LPWAN autonomous network technology and can build its own communication network to achieve long-distance communication and intercom, which better meets the actual needs of relevant technical personnel. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a portable video transmission intercom communication device for offline scenarios based on LPWAN autonomous network technology in one embodiment.

[0027] Figure 2 This is a schematic diagram of a portable video transmission intercom communication device for offline scenarios based on LPWAN autonomous network technology in another embodiment.

[0028] Figure 3 This is a schematic diagram of the structure of a portable video transmission intercom communication device for offline scenarios based on LPWAN autonomous network technology in another embodiment;

[0029] Figure 4 This is a schematic diagram of a portable video transmission intercom communication device for offline scenarios based on LPWAN autonomous network technology in another embodiment.

[0030] Figure 5 This is a schematic diagram of the structure of a portable video transmission intercom communication device for offline scenarios based on LPWAN autonomous network technology in another embodiment. Detailed Implementation

[0031] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0033] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.

[0034] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “below,” “under,” or “below” will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0035] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. Furthermore, in the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if there is transmission of electrical signals or data between the connected objects.

[0036] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0037] In one exemplary embodiment, please refer to Figure 1 This application provides a portable video transmission intercom communication device for offline scenarios based on LPWAN autonomous network technology, hereinafter referred to as an intercom communication device. The intercom communication device includes: a first communication module 1, a data processing module 2, and a second communication module 3.

[0038] The first communication module 1 is used to receive first intercom data sent by other intercom communication devices in the intercom group. Each intercom communication device in the intercom group is suitable for supporting LPWAN autonomous network technology and belongs to the same low power wide area network. The first intercom data includes at least one of voice data and image data.

[0039] The data processing module 2 is connected to the first communication module 1 and is used to determine the target intercom data from each first intercom data and process the target intercom data. The target intercom data is the intercom data sent by the intercom communication device that belongs to the same target intercom group in the intercom group.

[0040] The second communication module 3 is connected to the data processing module 2 and is used to connect to the communication equipment and to send the processed target intercom data to the communication equipment.

[0041] In this embodiment, the communication device can be a mobile phone. When using the walkie-talkie communication device of this application, the second communication module 3 can be connected to the mobile phone first. The first communication module 1 in the walkie-talkie communication device can form a self-organizing network through LPWAN (Low-Power Wide-Area Network) technology to form a walkie-talkie group, enabling each walkie-talkie communication device in the walkie-talkie group to connect and communicate with each other without the need for pre-configuration of a central node. Furthermore, relevant technicians can obtain information about each walkie-talkie communication device in the walkie-talkie group through the mobile phone, and divide the walkie-talkie groups according to specific needs. They can then send walkie-talkie data to members in the same walkie-talkie group and receive walkie-talkie data sent to members in the same walkie-talkie group.

[0042] When the second communication module 3 is connected to the communication equipment, the first communication module 1 can receive the first intercom data sent by the other intercom communication devices in the intercom group, and send the received first intercom data to the data processing module 2. After receiving the first intercom data, the data processing module 2 can verify the first intercom data and determine the target intercom data sent by the intercom communication device in the same target intercom group in the intercom group from each first intercom data, so as to ensure that only the target receiver can read the intercom data.

[0043] For example, suppose a walkie-talkie group includes walkie-talkie communication devices a, b, c, and d. Each device can connect to a mobile application in its corresponding communication device via a second communication module. Technical personnel can configure the walkie-talkie group using the mobile application. For instance, they can configure walkie-talkie devices a, b, and c in the same group A, and b, c, and d in the same group B. When walkie-talkie device b sends walkie-talkie data in group A, group A becomes the target group. All other walkie-talkie devices in the group can receive the first walkie-talkie data sent by device b. Taking walkie-talkie device a as an example, the first communication module in device a receives the first walkie-talkie data... After transmitting data, the first intercom data can be verified. Upon successful verification, the first intercom data is identified as the target intercom data and sent to the mobile application in the communication device via the second communication module. Then, the holder of intercom communication device a can read the intercom data sent by the holder of intercom communication device b. Taking intercom communication device d as an example, after receiving the first intercom data, the first communication module in intercom communication device a can verify it. Since intercom communication device b sends intercom data in intercom group A, and intercom communication device d is not in the target intercom group (i.e., intercom group A), the verification of the first intercom data of intercom communication device d will fail. This ensures that the holder of intercom communication device d cannot read the intercom data sent by the holder of intercom communication device b, guaranteeing the security of intercom data transmission.

[0044] The aforementioned intercom communication device includes a first communication module, a data processing module, and a second communication module. The first communication module can receive first intercom data sent by other intercom communication devices in a group. All intercom communication devices in the group belong to the same low-power wide-area network (LPWAN). Based on the LPWAN, long-distance communication between the intercom communication devices in the group can be achieved. After receiving the first intercom data sent by other intercom communication devices in the group, the first communication module can determine the target intercom data sent by intercom communication devices in the same target intercom group within the group from the first intercom data. It processes the target intercom data and then sends the processed target intercom data to a communication device, such as a mobile phone, through the second communication module. The mobile phone then reads the target intercom data. This intercom communication device, based on a LPWAN, can build its own communication network, enabling long-distance communication and intercom, which better meets the actual needs of relevant technical personnel.

[0045] In an exemplary embodiment, the data processing module is further configured to receive an identification code sent by the communication device through the second communication module. The identification code is used to identify intercom data sent by an intercom communication device belonging to the same intercom group as the intercom communication device.

[0046] In application, when communication devices are used to divide intercom groups within an intercom network, the communication devices can send an identification code to the data processing module 2 via the second communication module 3. Each intercom group shares a single identification code. When an intercom communication device sends intercom data, it can carry the corresponding identification code. After receiving first intercom data from other intercom communication devices, the intercom communication device can determine whether the first intercom data is the target intercom data based on the identification code carried in the first intercom data.

[0047] In one example, suppose the intercom group includes intercom communication devices a, b, c, and d. Intercom communication devices a, b, and c are in the same intercom group A, and intercom communication devices a, b, and c in intercom group A share a single identifier X. Intercom communication devices b, c, and d are in the same intercom group B, and intercom communication devices b, c, and d share a single identifier Y. When intercom communication device b sends intercom data in intercom group A, intercom group A is the target intercom group. The intercom data carries an identification code X. All other intercom communication devices in the intercom group can receive the first intercom data sent by intercom communication device b carrying the identification code X. Taking intercom communication device a as an example, after receiving the first intercom data, the first communication module in intercom communication device a can parse the identification code X carried in the first intercom data. Since the identification code X carried in the first intercom data is the same as the identification code X of intercom communication device a, the first intercom data is verified and can be identified as the target intercom data. The target intercom data is then transmitted through the second communication module. The communication module sends the data to the mobile application in the communication device. Then, the owner of walkie-talkie device a can read the walkie-talkie data sent by the owner of walkie-talkie device b. Taking walkie-talkie device d as an example, after receiving the first walkie-talkie data, the first communication module in walkie-talkie device a can parse the identification code X carried in the first walkie-talkie data. Since the identification code X carried in the first walkie-talkie data is different from the identification code Y of walkie-talkie device d, the verification of the first walkie-talkie data by walkie-talkie device d will fail. This ensures that the owner of walkie-talkie device d cannot read the walkie-talkie data sent by the owner of walkie-talkie device b, thus ensuring the security of walkie-talkie data transmission.

[0048] In an exemplary embodiment, the data processing module 2 is further configured to demodulate the first intercom data, obtain the identification code of the first intercom data, and determine the first intercom data whose identification code meets the preset conditions as the target intercom data.

[0049] In this embodiment, after receiving the first intercom data, the first communication module 1 needs to convert the analog first intercom data into a digital signal, that is, demodulate the first intercom data so that it can be processed subsequently. After converting the analog first intercom data into a digital signal, the data processing module 2 can read the identification code from the first intercom data and verify whether the corresponding first intercom data is the target intercom data based on the identification code.

[0050] In one exemplary embodiment, please refer to Figure 2The first communication module 1 includes a communication antenna 11 and a self-organizing network unit 12. The self-organizing network unit 12 is used to support a low-power wide-area network (LPWAN) so that the intercom communication device belongs to an intercom group. The communication antenna 11 is used to receive first intercom data sent by other intercom communication devices in the intercom group.

[0051] In applications, the self-organizing network unit 12 can automatically build and maintain a wireless network, i.e., a walkie-talkie group, so that each walkie-talkie communication device in the walkie-talkie group can connect and communicate with each other without the need to pre-configure a central node.

[0052] In one exemplary embodiment, please refer to Figure 3 The intercom communication device of this application also includes: housing 4, and the first communication module 1, data processing module 2 and second communication module 3 are all disposed inside the housing 4.

[0053] In this embodiment, the communication antenna 11 is also disposed inside the housing 4. By disposing the communication antenna inside the housing 4 for transmitting and receiving wireless signals, compared with the external antenna in related technologies, this application disposes the communication antenna 11 inside the housing 4, which can improve the anti-interference capability of the communication antenna 11 and thus adapt to the complex electromagnetic environment in power grid professional scenarios.

[0054] This application further enhances the performance and reliability of the wireless communication system by also incorporating the communication antenna 11 inside the housing 4 and combining it with the self-organizing network unit 12. The built-in communication antenna 11 is responsible for efficient signal transmission, while the self-organizing network unit 12 is responsible for the automatic construction and maintenance of the network, enabling multiple intercoms to connect seamlessly and form an efficient and reliable network.

[0055] In one exemplary embodiment, please refer to Figure 4 The intercom communication device of this application further includes: at least one electrical interface 5, which is connected to the first communication module 1, the data processing module 2, and the second communication module 3 respectively. The electrical interface 5 is used to connect to a communication device so as to supply power to the first communication module 1, the data processing module 2, and the second communication module 3 through the communication device.

[0056] In the application, electrical interface 5 is a Type-C power supply interface and / or a Lightning power supply interface. By setting the Type-C power supply interface and the Lightning power supply interface, the intercom communication device can be connected to the communication equipment, so that the communication equipment acts as an external power source for the intercom communication device. This application reuses the communication equipment, so that the communication equipment can simultaneously act as a power source for the intercom communication device and receive, display or play intercom data, thereby realizing the intercom communication device as a peripheral of the communication equipment. After the intercom communication device is connected to the communication equipment through electrical interface 5, under the power supply of the communication equipment, the second communication module in the intercom communication device can communicate with the communication equipment. The first communication module can also perform self-organizing networking and receive the first intercom data sent by other intercom communication devices in the intercom group under the power supply of the communication equipment, realizing plug-and-play between the intercom communication device and the communication equipment and improving the convenience of use.

[0057] In an exemplary embodiment, the second communication module 3 is further configured to receive second intercom data sent by the communication device, the data processing module 2 is further configured to perform modulation and encryption processing on the second intercom data, and the first communication module 1 is further configured to send the second intercom data after modulation and encryption processing to the other intercom communication devices in the intercom group.

[0058] In one example, the communication device has a display screen and may also be equipped with peripherals such as headsets and earpieces. The intercom data transmitted between the various intercom communication devices can be at least one of voice data, text data, and image data. In application, after the communication device receives the target intercom data through the second communication module, if the target intercom data is voice data, the relevant technicians can receive the target intercom data through earpieces; if the target intercom data is text data and / or image data, the relevant technicians can read the target intercom data through the display screen.

[0059] Similarly, the communication device can send second intercom data to the second communication module 3. The second intercom data can be at least one of voice data, text data, and image data. After receiving the second intercom data, the second communication module 3 can transmit the data to the data processing module 2. The data processing module 2 can first encrypt the second intercom data. In one example, the data processing module 2 has multiple encryption technologies, including at least some of AES256 encryption, WMT256 encryption, KET256 encryption, custom baseband protocol encryption, and vocoder encryption, to ensure the security and privacy of the communication content during transmission, prevent unauthorized personnel from intercepting or eavesdropping on the communication content, protect sensitive information from being leaked, and meet the communication security needs of specific industries or fields. Afterwards, the data processing module 2 can further modulate the encrypted second intercom data, converting the digital signal into an analog signal, thus converting the second intercom data into a signal suitable for wireless transmission, and then sending it to the intercom group through the first communication module 1. It is understandable that the second intercom data carries an identification code so that the second intercom data can only be read by other intercom communication devices in the same target intercom group as the intercom communication device that sent the second intercom data, so as to prevent the second intercom data from being intercepted or eavesdropped and to protect sensitive information from being leaked.

[0060] In one exemplary embodiment, please refer to Figure 5 The data processing module 2 includes a modulation and demodulation unit 21 and an encryption and decryption unit 22.

[0061] The modulation and demodulation unit 21 is connected to the first communication module 1 and the second communication module 3 respectively, and is used to demodulate the first intercom data.

[0062] The encryption / decryption unit 22 is connected to the modulation / demodulation unit 21, the first communication module 1, and the second communication module 3, respectively. It is used to determine the target intercom data from each of the first intercom data after demodulation processing and to decrypt the target intercom data according to the preset encryption / decryption algorithm.

[0063] In a detailed embodiment, for a walkie-talkie communication device, the walkie-talkie data it receives is the first walkie-talkie data, and the walkie-talkie data it sends out is the second walkie-talkie data. When the first communication module 1 receives the first walkie-talkie data sent by other walkie-talkie communication devices in the walkie-talkie group, the first communication module transmits the first walkie-talkie data to the modulation and demodulation unit 21 of the data processing module 2. The modulation and demodulation unit 21 can convert the analog signal of the first walkie-talkie data into a digital signal, that is, demodulate the first walkie-talkie data. Then, the encryption and decryption unit 22 can obtain the identification code from the demodulated first walkie-talkie data and verify whether the corresponding first walkie-talkie data is the target walkie-talkie data according to the identification code. If the first walkie-talkie data is verified to be the target walkie-talkie data, the encryption and decryption unit 22 can decrypt the target walkie-talkie data according to the preset encryption and decryption algorithm, and send the decrypted target walkie-talkie data to the communication device through the second communication module. The second communication module can be Bluetooth, and the communication device can be a mobile phone. Then, the owner of the walkie-talkie communication device can read the content of the target walkie-talkie data through the display screen and earphone of the mobile phone.

[0064] Next, the owner of the intercom communication device can send intercom data outward through the communication equipment and the intercom communication device. Specifically, the communication equipment can send the second intercom data to the data processing module 2 through the second communication module 3. After receiving the second intercom data, the encryption / decryption unit 22 can first encrypt the second intercom data, and then the modulation / demodulation unit 21 can modulate the encrypted second intercom data to convert the digital signal of the second intercom data into an analog signal suitable for wireless transmission, and send it to the intercom group through the first communication module. It can be understood that the second intercom data carries an identification code so that the second intercom data can only be read by other intercom communication devices in the same target intercom group as the intercom communication device that sent the second intercom data, so as to prevent the second intercom data from being intercepted or eavesdropped, and protect sensitive information from being leaked.

[0065] In one example, the intercom communication device of this application adopts domestically produced, leading high-capacity narrowband wireless IoT / LPWAN (Low Power Wide Area Network) communication technology. The operating frequency band of the intercom communication device of this application is 50MHz~1040MHz, the bandwidth of the communication system is 125 kHz, the bandwidth of a single user is 2~125 kHz, the transmission rate is 0.1 kbps~85.1 kbps, the receiving sensitivity is -150 dBm~-121 dBm, the duplex mode is TDD, and it supports high-concurrency random access based on mMIMO (TDMA + FDMA + SDMA). The intercom communication device of this application has the characteristics of anti-interference and strong coverage, and can realize long-distance wireless intercom of 5~6km. It also has a flexible time slot structure and uses time division technology in the communication process to support point-to-point (multi-point) communication, LAN networking (including relay) and Mesh networking, realize metropolitan area-level wireless voice transmission application, realize efficient one-to-many or many-to-many voice transmission, and support half-duplex and full-duplex intercom modes.

[0066] The modulation and demodulation unit of this application has a built-in codec circuit, directly simulating voice signal input and output. It employs DSFK and polar code technologies for modulation and demodulation of intercom data, with selectable voice coding rates ranging from 2.0Kbps to 9.6Kbps and selectable forward error correction (FEC) rates ranging from 50bps to 7.2Kbps. It supports DTMF detection and generation, as well as voice activity detection (VAD) and comfort noise insertion (CNI). The encryption and decryption unit of this application features five layers of encryption technology: AES256 encryption, WMT256 encryption, KET256 encryption, a custom baseband protocol encryption, and vocoder encryption. This ensures the security and privacy of communication content during transmission, prevents unauthorized interception or eavesdropping, protects sensitive information from leakage, and meets the communication security needs of specific industries or fields.

[0067] In one exemplary embodiment, this application also provides a walkie-talkie group, which includes multiple portable image transmission walkie-talkie communication devices for offline scenarios based on LPWAN autonomous network technology as described in any of the above embodiments, wherein the first walkie-talkie data includes at least one of voice data and image data.

[0068] In one exemplary embodiment, this application also provides a communication system, which includes multiple communication devices and multiple portable video transmission intercom communication devices for offline scenarios based on LPWAN autonomous network technology as described in any of the above embodiments, wherein the first intercom data includes at least one of voice data and image data.

[0069] In one example, the communication system also includes relays, gateways, and network servers.

[0070] In the description of this specification, references to terms such as "some embodiments," "other embodiments," and "ideal embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A portable image transmission and intercom communication device for offline scenarios based on LPWAN autonomous network technology, characterized in that, The device includes: The first communication module is used to receive first intercom data sent by other intercom communication devices in the intercom group; each intercom communication device in the intercom group is adapted to support LPWAN autonomous network technology, wherein the first intercom data includes at least one of voice data and image data. A data processing module, connected to the first communication module, is used to determine target intercom data from each of the first intercom data and process the target intercom data; the target intercom data is intercom data sent by intercom communication devices belonging to the same target intercom group in the intercom group as the intercom communication device. The second communication module is connected to the data processing module and is used to connect to the communication device and send the processed target intercom data to the communication device; the second communication module is Bluetooth. At least one electrical interface is provided, which is connected to the first communication module, the data processing module, and the second communication module respectively. The electrical interface is used to connect to the communication device to supply power to the first communication module, the data processing module, and the second communication module through the communication device. The electrical interface is a Type-C power interface and / or a Lightning power interface. The first communication module includes an ad hoc network unit for supporting the LPWAN so that the intercom communication device belongs to the intercom group; and a communication antenna for receiving first intercom data sent by other intercom communication devices in the intercom group.

2. The apparatus according to claim 1, characterized in that, The data processing module is further configured to receive an identification code sent by the communication device through the second communication module. The identification code is used to identify intercom data sent by intercom communication devices belonging to the same intercom group as the intercom communication device.

3. The apparatus according to claim 1, characterized in that, The first intercom data includes an identification code; the data processing module is further configured to demodulate the first intercom data, obtain the identification code of the first intercom data, and determine the first intercom data whose identification code meets preset conditions as the target intercom data.

4. The apparatus according to claim 1, characterized in that, The device further includes: The housing contains the first communication module, the data processing module, and the second communication module, all of which are located inside the housing.

5. The apparatus according to claim 1, characterized in that, The second communication module is also used to receive second intercom data sent by the communication device, the data processing module is also used to perform modulation and encryption processing on the second intercom data, and the first communication module is also used to send the second intercom data after modulation and encryption processing to the other intercom communication devices in the intercom group.

6. The apparatus according to claim 1, characterized in that, The data processing module includes: A modulation and demodulation unit is connected to the first communication module and the second communication module respectively, and is used to demodulate the first intercom data; The encryption / decryption unit is connected to the modulation / demodulation unit, the first communication module, and the second communication module, respectively, and is used to determine the target intercom data from each of the first intercom data after demodulation processing, and to decrypt the target intercom data according to a preset encryption / decryption algorithm.

7. A type of intercom group, characterized in that, The intercom group includes multiple portable video transmission intercom communication devices for offline scenarios based on LPWAN autonomous network technology as described in any one of claims 1-6.

8. A communication system, characterized in that, The communication system includes multiple communication devices and multiple portable video transmission intercom communication devices for offline scenarios based on LPWAN autonomous network technology as described in any one of claims 1-6.

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