CN217789909U - ZigBee transmission system of double link - Google Patents
ZigBee transmission system of double link Download PDFInfo
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- CN217789909U CN217789909U CN202222071467.8U CN202222071467U CN217789909U CN 217789909 U CN217789909 U CN 217789909U CN 202222071467 U CN202222071467 U CN 202222071467U CN 217789909 U CN217789909 U CN 217789909U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model relates to a ZigBee transmission system of double links, which comprises a gateway wired interface, a gateway wireless interface, a peripheral interface, a signal intensity detection circuit, a gateway switching circuit and a gateway processor, wherein the gateway wired interface and the gateway wireless interface are respectively arranged on a switching branch circuit of the gateway switching circuit; the base station comprises a base station wired interface, a base station wireless interface, a base station switching circuit and a base station processor, wherein the base station wired interface and the base station wireless interface are respectively arranged on a switching branch path of the base station switching circuit; the gateway wireless interface and the base station wireless interface are ZigBee modules; the wired gateway interface is in wired communication connection with the wired base station interface, and the wireless gateway interface is in wireless communication connection with the wireless base station interface. The utility model discloses a zigBee transmission system has wireless and wired two kinds of links, avoids the wireless transmission environment mistake to lead to the unable normal transmission of front end data.
Description
Technical Field
The utility model belongs to the technical field of the transmission of thing networking, concretely relates to zigBee transmission system of double link.
Background
ZigBee is a wireless network protocol, and the bottom layers of the ZigBee are a medium access layer and a physical layer which adopt IEEE802.15.4 standard specifications. The ZigBee protocol layer comprises a physical layer (PHY), a medium access layer (MAC), a network layer (NWK), an application layer (APL) and the like from bottom to top. The method is mainly characterized by low speed, low power consumption and low cost, and is a data transmission protocol of the Internet of things equipment which is widely applied at present.
When data such as states or sensor readings of existing equipment operating in severe industrial environments with nuclear radiation, over-high or over-low temperature and the like are transmitted through a ZigBee wireless network, wireless data between a ZigBee gateway and a base station is interrupted due to shielding influence of external environments such as reinforced concrete. Therefore, a data transmission system capable of ensuring that the relevant data of the front-end processor can be transmitted smoothly in an environment with severe interference without fear of wireless transmission is needed.
SUMMERY OF THE UTILITY MODEL
Based on the above-mentioned shortcomings and deficiencies in the prior art, it is an object of the present invention to at least solve one or more of the above-mentioned problems in the prior art, in other words, to provide a dual link ZigBee transmission system that satisfies one or more of the above-mentioned needs.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:
a ZigBee transmission system with double links comprises a gateway and a base station;
the gateway comprises a gateway wired interface, a gateway wireless interface, a peripheral interface, a signal intensity detection circuit, a gateway switching circuit and a gateway processor, wherein the peripheral interface is in communication connection with the gateway processor; the signal strength detection circuit is in communication connection with the gateway wireless interface and the gateway processor; the peripheral interface is used for being in communication connection with external equipment;
the base station comprises a base station wired interface, a base station wireless interface, a base station switching circuit and a base station processor, wherein the base station wired interface and the base station wireless interface are respectively arranged on a switching branch of the base station switching circuit, and a trunk of the base station switching circuit is in communication connection with the base station processor;
the gateway wireless interface and the base station wireless interface are ZigBee modules;
the wired gateway interface is in wired communication connection with the wired base station interface, and the wireless gateway interface is in wireless communication connection with the wireless base station interface.
Preferably, the peripheral interface is in communication connection with the gateway wireless interface.
Preferably, the external device is a radiation sensor or a temperature sensor.
As a preferred scheme, the system also comprises a human-computer interaction end which is in communication connection with the gateway processor and the base station processor.
As a preferred scheme, the gateway further comprises a gateway power supply module, which is in power supply connection with the gateway processor and the gateway wireless interface.
Preferably, the base station further comprises a base station power supply module, which is in power supply connection with the base station processor and the base station wireless interface.
Compared with the prior art, the utility model, beneficial effect is:
the utility model discloses a zigBee transmission system has two kinds of links wireless and wired, avoids the wireless transmission environment too poor leading to the unable normal transmission of front end data.
Drawings
Fig. 1 is a system structure block diagram of a dual-link ZigBee transmission system according to an embodiment of the present invention;
fig. 2 is a block diagram of a gateway according to an embodiment of the present invention;
fig. 3 is a block diagram of a base station according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
Example (b): the present embodiment provides a dual-link ZigBee transmission system, a system structure block diagram of which is shown in fig. 1, the system mainly includes two parts, namely a gateway and a base station, wherein the gateway is used for connecting with an external device at a front end, and the base station is used for performing data interaction with a back end. Data between the external device and the backend is transmitted bi-directionally via the gateway-base station path.
The gateway has a structure diagram as shown in fig. 2, and includes a gateway wired interface, a gateway wireless interface, a peripheral interface, a gateway switching circuit, a signal strength detection circuit, and a gateway processor, where the gateway processor includes a microprocessor, a debugging and downloading interface, and a memory.
The gateway wireless interface is also led out another branch circuit to be connected with a signal intensity detection circuit, and a signal intensity output port of the signal intensity detection circuit is connected with the gateway processor. The signal strength detection circuit detects the signal strength of the gateway wireless interface during wireless communication with the base station through the connection between the signal strength detection circuit and the gateway wireless interface, and sends an electric signal representing the signal strength to the gateway processor from the output port.
The gateway wireless interface and the gateway wired interface are both connected to a switching shunt of the gateway switching circuit, and a trunk circuit of the gateway switching circuit is connected to the gateway processor, so that the gateway processor selects one of the gateway wireless interface and the gateway wired interface for data communication through switching of the gateway switching circuit.
Furthermore, the gateway also comprises a power supply module, and the power supply module is in power supply connection with the gateway processor and the gateway wireless interface.
The structure block diagram of the base station is shown in fig. 3, and includes a wired interface of the base station, a wireless interface of the base station, a switching circuit of the base station, and a processor of the base station. The wireless interface and the wired interface of the base station are both connected to a switching branch of the base station switching circuit, and a main path of the base station switching circuit is connected to the base station processor, so that the base station processor selects one of the wireless interface and the wired interface of the base station for data communication through the switching of the base station switching circuit.
Further, the base station includes a power module in power communication with the base station wireless interface and the base station processor.
The gateway wireless interface and the base station wireless interface are ZigBee modules for communicating among external equipment, a gateway and a base station through a ZigBee protocol, the gateway wireless interface and the base station wireless interface adopt a ZigBee technology, and the gateway wireless interface and the base station wireless interface support a 2.4GHz frequency band based on an 802.15.4 protocol, are deployed in different channel modes and avoid possible electromagnetic interference.
The external device generally uses a sensor with a small data transmission quantity, such as a temperature sensor, a humidity sensor and a radiation sensor, so as to avoid the congestion of a wireless network between the external device and the gateway.
As an improved scheme, in order to manually switch the link when needed, the system also comprises a human-computer interaction end which can be a touch screen and is in communication connection with the gateway processor and the base station processor. When needed, the gateway processor can control the gateway switching circuit to be switched to the gateway wired circuit or the gateway wireless circuit through the control of the human-computer interaction terminal. Through the operation on the human-computer interaction terminal, a configuration tool can be used for configuring data such as baud rate, data bits, check bits, stop bits and flow control for the base station and the sensor, and data configuration can be performed on the gateway through a webpage interface.
According to the ZigBee transmission system based on the structure, due to the fact that the ZigBee transmission system is provided with the wired transmission link and the wireless transmission link, when the signal strength changes due to environmental factors, the signal strength can be obtained through detection of the signal strength detection circuit, the gateway switching circuit is controlled to be switched to the wired link or the wireless link through judgment of the gateway processor, and the base station switching circuit carries out the same switching along with the gateway switching circuit. And when the gateway processor detects that the strength of the wireless signal is lower than-80 dBm, switching to a wired link, and exchanging data with a wired interface of the base station through a wired interface of the gateway. If the strength of the wireless signal is detected to be higher than-80 dBm, the gateway wireless interface is used for data exchange with the base station wireless interface. In order to ensure the safe transmission of wireless signals, Z-Stack protocol stacks are used by a gateway, a base station and external equipment, and an AES-128 bit encryption algorithm is used in an MAC layer.
It should be noted that the above-mentioned embodiments are only for illustrating the preferred embodiments and principles of the present invention in detail, and it should be understood that the changes in the detailed implementation manner according to the idea provided by the present invention can be made by those skilled in the art, and these changes should be regarded as the protection scope of the present invention.
Claims (6)
1. A ZigBee transmission system with double links is characterized by comprising a gateway and a base station;
the gateway comprises a gateway wired interface, a gateway wireless interface, a peripheral interface, a signal intensity detection circuit, a gateway switching circuit and a gateway processor, wherein the peripheral interface is in communication connection with the gateway processor; the signal strength detection circuit is in communication connection with the gateway wireless interface and the gateway processor; the peripheral interface is used for being in communication connection with external equipment;
the base station comprises a base station wired interface, a base station wireless interface, a base station switching circuit and a base station processor, wherein the base station wired interface and the base station wireless interface are respectively arranged on a switching branch of the base station switching circuit, and a trunk of the base station switching circuit is in communication connection with the base station processor;
the gateway wireless interface and the base station wireless interface are ZigBee modules;
the gateway wired interface is in wired communication connection with the base station wired interface, and the gateway wireless interface is in wireless communication connection with the base station wireless interface.
2. The dual link ZigBee transmission system as claimed in claim 1, wherein the peripheral interface is communicatively connected to the gateway wireless interface.
3. The dual link ZigBee transmission system of claim 1, wherein the external device is a radiation sensor or a temperature sensor.
4. The ZigBee transmission system for dual link of claim 1, further comprising a human-computer interaction terminal, wherein said human-computer interaction terminal is communicatively connected with said gateway processor and said base station processor.
5. The ZigBee transmission system for dual link of claim 1, wherein the gateway further comprises a gateway power module, which is in power connection with the gateway processor and the gateway wireless interface.
6. The dual link ZigBee transmission system as claimed in claim 1, wherein the base station further comprises a base station power module, which is electrically connected to the base station processor and the base station wireless interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222071467.8U CN217789909U (en) | 2022-08-08 | 2022-08-08 | ZigBee transmission system of double link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222071467.8U CN217789909U (en) | 2022-08-08 | 2022-08-08 | ZigBee transmission system of double link |
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| Publication Number | Publication Date |
|---|---|
| CN217789909U true CN217789909U (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222071467.8U Active CN217789909U (en) | 2022-08-08 | 2022-08-08 | ZigBee transmission system of double link |
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| CN (1) | CN217789909U (en) |
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2022
- 2022-08-08 CN CN202222071467.8U patent/CN217789909U/en active Active
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