[0030] With the continuous popularization of wifi networks, existing security systems, smart home systems, building automation and intelligent vehicle management are generally implemented based on wifi networks. However, due to the disadvantages of high power consumption, high cost, poor networking capability and transmission distance of wifi wireless network, its application in the above-mentioned fields is greatly limited. In view of this, the present invention provides a conversion method, a conversion device and a conversion system for communication conversion with low cost, low power consumption and long transmission distance.
[0031] This embodiment uses the communication conversion between the SubG radio frequency sub-device with low power consumption and high transmission distance and the wifi control device as an example to illustrate the communication conversion method. However, the present invention is not limited to this. In other embodiments, the communication conversion method provided by the present invention is also applicable to data conversion between two devices with different transmission protocols, such as between a Bluetooth device and a wifi control device, between a Zigbee device and a wifi control device, and so on.
[0032] like figure 1 As shown, the communication conversion method provided by this embodiment includes:
[0033] Step S1: Receive data from the first device. In this embodiment, the first device is a wifi control device. Specifically, as shown in 5, the local control APP (abbreviation for Application, application program) is connected to the wifi control device through the wifi local area network, and the local control APP transmits data to the communication conversion device through the wifi control device. The receiving unit receives data from the first device. like Figure 5 As shown, the remote control APP can also be connected to the wifi control device through the cloud for data transmission, so as to achieve the purpose of remote control.
[0034] In step S2, the received data is processed once, and the processed data conforms to the communication protocol for communicating with the second device. In this embodiment, the second device is a SubG radio frequency sub-device. Since different wireless communication modules have different protocols for data transmission, in order to enable the second device to identify the transmitted data accurately, the transmitted data needs to be converted into a format that the second device can recognize.
[0035] like figure 2 As shown, a processing includes the following steps:
[0036] Step S21, decrypt the received data. In the process of data transmission, in order to ensure the safety and reliability of data information, the data sender needs to encrypt the plaintext data to form ciphertext data before data transmission. After receiving the ciphertext data, the receiver decrypts the ciphertext data according to the key to form plaintext for identification.
[0037] Step S22, judging whether the decrypted data is legal. Such as judging whether the decrypted data type is legal or not.
[0038] Step S23, when the decrypted data is legal, encapsulate the legal data according to the communication protocol for communicating with the second device. For example, when the decrypted data is legal, the data is encapsulated in the form of data packets according to the communication protocol of the second device. In the fields of security systems or smart home systems or smart vehicle management systems, monitoring devices are generally connected to SubG radio frequency sub-devices, such as door magnetic switch sensors, temperature and humidity sensors and other sensing devices. The format will usually include address information, control information, payload data, and inspection information. The address information includes the destination address and source address of data transmission, and the control information includes information that distinguishes different monitoring devices. The verification information is a check code, which verifies the address information, control information, and payload data. However, the present invention does not limit the format of data encapsulation. Depending on the second device, the encapsulated data format is also different.
[0039] When the one-time processing of the data is completed, go to step S3.
[0040] Step S3, searching for the second device. Find the second device according to the destination address in the transmission data.
[0041] Step S4, perform secondary processing on the data. The secondary processing is to encrypt and/or encode the data after the primary processing. In this embodiment, the secondary processing is set after the second device is found, which can reduce program consumption. Specifically, when the second device cannot be found, there is no need to perform secondary processing on the data. On the other hand, the consumption of secondary processing is reduced. However, the present invention is not limited to this. In other embodiments, step S4 can be set between step S2 and step S3.
[0042] The secondary processing of data is to further improve the reliability of data transmission, but for some systems with little interference and only internal transmission (such as security systems, smart home systems or intelligent vehicle management systems and other internal systems), due to their data transmission. The stability and security of the data are relatively high, so the data may not be subjected to secondary processing (ie, step S4 is not set), and the data is transmitted in plaintext.
[0043] Step S5: Send the data processed once to the found second device. In this embodiment, the data processing module transmits the once processed data to the SubG radio frequency sub-device through the 433 module, so as to realize the conversion between wifi communication and SubG radio frequency communication. The local control APP can access the wifi control device through the local area network to realize the control of the monitoring device by the local terminal; further, the remote control APP can also be connected with the wifi control device through the cloud to realize the remote control of the monitoring device.
[0044] The conversion method given above is wifi communication to SubG radio frequency communication. Similarly, the conversion method provided by the present invention is also suitable for converting SubG radio frequency communication to wifi communication. At this time, the first device is the SubG radio frequency sub-device, and the second device is the wifi control device.
[0045] The SubG radio frequency sub-device sends the data monitored by the monitoring device to the communication conversion device, and the communication conversion device first performs step S1 to receive data from the first device. That is, the information from the SubG radio frequency sub-device is received.
[0046] In step S2, the received data is processed once, and the processed data meets the requirements of the communication protocol for communicating with the second device. The data to be received from the SubG radio frequency sub-device is decrypted and packaged according to the communication protocol of the wifi control device.
[0047] Step S3, searching for the second device according to the destination address in the data.
[0048] Step S4, after the second device is found, perform secondary processing on the data processed once. The method of secondary processing is to encrypt and/or encode the data.
[0049] Step S5: Send the data after the secondary processing to the found second device. In this embodiment, the data after secondary processing is sent to the wifi control device, and the wifi control device transmits the output to the local control APP through the local area network to realize the reception of local data; or sends the data to the remote control APP through the cloud to realize Reception of remote data.
[0050] The communication conversion method provided in this embodiment realizes the conversion between wifi communication and SubG radio frequency communication. Various types of sensor devices with simple structure and low power consumption as monitoring equipment in the fields of smart home, building automation and intelligent vehicle management can be directly connected to SubG radio frequency with strong signal, low power consumption, strong networking ability and long transmission distance Sub-device, SubG radio frequency sub-device realizes data transmission between the communication conversion device and the wifi control module, and the user APP accesses the wifi control module through the local area network or the cloud to realize the remote monitoring of the monitoring device by the user APP.
[0051] Corresponding to the above communication conversion method, this embodiment further provides a communication conversion device, the device includes a receiving unit 1 , a data processing unit 2 , a searching unit 3 and a sending unit 4 . The receiving unit 1 receives data from the first device 100 . The data processing unit 2 processes the received data once, and the processed data conforms to the communication protocol for communication with the second device 200 . The search unit 3 searches for the second device 200 . The sending unit 4 sends the data processed once to the found second device 200 . In this embodiment, the data processing unit 2 and the search unit 3 are integrated together. However, the present invention is not limited to this. In other embodiments, the data processing unit 2 and the search unit 3 may be independently set.
[0052] In this embodiment, when the first device 100 is a wifi control device, and the second device 200 is a SubG radio frequency sub-device, at this time, the communication conversion device 300 converts the control data sent by the wifi control module to form a SubG radio frequency sub-device that can The identified data enables remote control. When the first device 100 is a SubG radio frequency sub-device, and the second device 200 is a wifi control device, the communication conversion device 300 converts the monitoring data sent by the SubG radio frequency device into data identifiable by the wifi control device to realize remote monitoring .
[0053] A processing performed by the data processing unit 2 includes the following steps:
[0054] Step S21, decrypt the received data. In the process of data transmission, in order to ensure the safety and reliability of data information, the data sender needs to encrypt the plaintext data to form ciphertext data before data transmission. After receiving the ciphertext data, the receiver decrypts the ciphertext data according to the key to form plaintext for identification.
[0055] Step S22, judging whether the decrypted data is legal. Such as judging whether the decrypted data type is legal or not.
[0056] Step S23, when the decrypted data is legal, encapsulate the legal data according to the communication protocol for communicating with the second device 200. For example, when the decrypted data is legal, the data is encapsulated in the form of data packets according to the communication protocol of the second device 200 . In the fields of security systems or smart home systems or smart vehicle management systems, monitoring devices are generally connected to SubG radio frequency sub-devices, such as door magnetic switch sensors, temperature and humidity sensors and other sensing devices. The format will usually include address information, control information, payload data, and inspection information. The address information includes the destination address and source address of data transmission, and the control information includes information that distinguishes different monitoring devices. The verification information is a check code, which verifies the address information, control information, and payload data. However, the present invention does not limit the format of data encapsulation. According to the difference of the second device 200, the format of the encapsulated data is also different.
[0057] After the data is processed once, the search unit 3 searches the second device 200 according to the destination address in the data. After finding the second device 200 , the data processing unit 2 performs secondary processing on the data, and the secondary processing is to encrypt and/or encode the data, and then sends the data to the second device 200 via the sending unit 4 . The secondary processing of the data by the data processing unit 2 further improves the stability and security of the data. However, the present invention is not limited to this. In other embodiments, when the data transmission route is stable and the security performance is high, the secondary processing of the data may not be performed.
[0058] In this embodiment, the secondary processing of the data is set after the second device 200 is found, which can reduce program consumption. Specifically, when the second device 200 cannot be found, there is no need to perform secondary processing on the data. processing, the program reduces the consumption of secondary processing. However, the present invention is not limited to this. In other embodiments, the secondary processing of the data may be arranged between the primary processing of the data and the search for the second device.
[0059] Corresponding to the communication conversion device, such as Figure 4 and Figure 5 As shown, this embodiment also provides a communication conversion system. The system includes a communication conversion device 300 and a first device 100 and a second device 200 connected to the communication conversion device 300 . The first device 100 is connected to the receiving unit 1, and the second device 200 is connected to the sending unit.
[0060] In this embodiment, there is two-way data communication between the wifi control device and the SubG radio frequency sub-device, so the wifi control module acts as both the first device 100 and the second device 200; similarly, the SubG radio frequency sub-device also acts as the first device The device 100 also acts as the second device 200 .
[0061] Figure 5 The specific application scenario of the communication conversion system provided in this embodiment is given in , the remote control APP 10 is connected with the wifi control device through the cloud 20, and the wifi control device receives the control signal of the remote control APP 10 and communicates the control signal via The conversion device 300 transmits the signal to the SubG radio frequency sub-equipment, and the SubG radio frequency sub-equipment transmits the signal to the monitoring device, thereby realizing remote control. In turn, the SubG radio frequency sub-device transmits the information detected by the monitoring device to the wifi control device through the communication conversion device 300, and the wifi control device transmits the detection signal to the remote control APP 10 to realize remote monitoring. Similar to the working mode of the remote control APP 10, the difference is that the local control APP 30 accesses the wifi control device through the local area network.
[0062] To sum up, the receiving unit of the communication conversion device receives data from the first device, the data processing unit processes the data received by the receiving unit once according to the communication protocol of the second device, and sends the processed data to the searcher. As the second device, it implements communication conversion between devices of different communication types. For example, to realize the communication conversion between the wifi control device and the SubG radio frequency sub-device, the advantages of the SubG radio frequency sub-device, such as low power consumption, strong signal, long transmission distance, strong penetration and diffraction ability, and small attenuation in the transmission process are used to make up for it. The disadvantages of traditional wifi wireless network, such as high power consumption, poor networking capability, high cost and transmission distance, make the fields of fire protection, security, access control and other monitoring systems, intelligent instruments, building automation and parking lot vehicle management and the Internet of Things difficult. Seamless connection to meet the rapid information exchange of the Internet of Things. Although the present invention has been disclosed above by preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with the art can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection shall be subject to the scope of protection required by the claims.
