CN109889249B - Dual wireless communication signal relay forwarding system and method - Google Patents
Dual wireless communication signal relay forwarding system and method Download PDFInfo
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- CN109889249B CN109889249B CN201910202601.3A CN201910202601A CN109889249B CN 109889249 B CN109889249 B CN 109889249B CN 201910202601 A CN201910202601 A CN 201910202601A CN 109889249 B CN109889249 B CN 109889249B
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Abstract
The invention provides a double wireless communication signal relay forwarding system, which comprises a gateway, wherein the gateway is connected with a first functional node through a Zigbee wireless communication module, the gateway is also connected with a relay forwarding device through the Zigbee wireless communication module, and the relay forwarding device is connected with a second functional node through a 433 wireless communication module; the first functional node is a functional node with a communication distance with the gateway smaller than a first set threshold value; the second functional node is a functional node with a communication distance between the second functional node and the gateway being greater than or equal to a first set threshold and less than a second set threshold. The invention also provides a double wireless communication signal relay forwarding method. According to the invention, the relay forwarding device is arranged, the Zigbee and 433 wireless communication modules are combined, so that the communication distance between wireless devices can be prolonged, the number of the device networks can be increased, meanwhile, the safety is high, the anti-interference capability is high, the cascade use of the relay forwarding device is supported, and the system expansibility is high.
Description
Technical Field
The present invention relates to a wireless communication system, and in particular, to a dual wireless communication signal relay forwarding system.
Background
In the development of intelligent monitoring, wireless communication technology is widely applied in the industry. Particularly, the Zigbee wireless communication technology and the 433 wireless communication technology have the advantages of low power consumption, high safety and strong ad hoc network capability, and the 433 wireless communication technology has the advantages of strong penetrating power and long communication distance, so that the two technologies are widely applied to the fields of intelligent home, industry and the like.
In practical application, one of Zigbee or 433 is commonly used to make data of each intelligent product be uploaded in an alternating manner, so as to achieve a convenient and practical intelligent monitoring effect. However, single wireless technology communication, its own drawbacks, too, limit the application of its products.
The Zigbee wireless communication technology has the following drawbacks in wireless applications:
(1) The communication distance is short, and long-distance communication is difficult to carry out;
(2) Poor penetration ability, and difficult penetration of the transmission signal into the wall.
433 wireless communication technology has the following drawbacks in wireless applications:
(1) The ad hoc network has poor capability, and a multi-node complex communication network cannot be built;
(2) The anti-interference capability is poor and is easy to be interfered by peripheral signals.
Therefore, how to fully exploit the advantages of the Zigbee and 433 wireless communication technologies and shield the disadvantages thereof, and form a communication system with high security and long communication distance is a problem that the skilled person is addressing.
Disclosure of Invention
The invention aims to solve the technical problems that: how to fully develop the advantages of the Zigbee and 433 wireless communication technology and shield the disadvantages of the Zigbee and 433 wireless communication technology, and form a communication system with high safety and long communication distance.
In order to solve the technical problems, the technical scheme of the invention is to provide a dual wireless communication signal relay forwarding system, which is characterized in that: the system comprises a gateway, wherein the gateway is connected with a first functional node through a Zigbee wireless communication module, the gateway is also connected with a relay forwarding device through the Zigbee wireless communication module, and the relay forwarding device is connected with a second functional node through a 433 wireless communication module;
the first functional node is a functional node with a communication distance with the gateway smaller than a first set threshold value;
the second functional node is a functional node with a communication distance between the second functional node and the gateway being greater than or equal to a first set threshold and less than a second set threshold.
Preferably, the first set threshold is a maximum distance that the Zigbee wireless communication module can connect.
Preferably, the second set threshold is a sum of a maximum distance that one Zigbee wireless communication module can connect with and a maximum distance that one 433 wireless communication module can connect with.
Preferably, the first set threshold is 80 meters.
Preferably, the second set threshold is 1500 meters.
Preferably, the relay forwarding devices are provided with multiple stages, the gateway is connected with the first-stage relay forwarding device through a Zigbee wireless communication module, the relay forwarding devices of adjacent stages are connected through 433 wireless communication modules, and each stage of relay forwarding device is connected with the functional node in each communication range through each 433 wireless communication module.
Preferably, the relay forwarding device includes two main control modules connected to each other, and the two main control modules are respectively connected to the Zigbee wireless communication module and the 433 wireless communication module.
More preferably, the two main control modules are connected through a UART serial port to realize data communication and execute the transmission of uplink and downlink data of the equipment network.
More preferably, the two main control modules are respectively connected with the respective key operation module, the indicator light, the radio frequency antenna and the power supply module.
The invention also provides a double wireless communication signal relay forwarding method, which is characterized in that: the steps of the double wireless communication signal relay forwarding system are as follows:
aiming at a first functional node with a communication distance smaller than a first set threshold value, a gateway directly communicates with the first functional node through a Zigbee wireless communication module;
for a second functional node with a communication distance larger than or equal to a first set threshold value and smaller than a second set threshold value, the gateway firstly transmits data to the relay forwarding device through the Zigbee wireless communication module, and the relay forwarding device transmits the data to the second functional node through the 433 wireless communication module;
for the functional node with the communication distance larger than the second set threshold value, a multi-stage relay forwarding device is arranged, the gateway firstly transmits data to the first-stage relay forwarding device through the Zigbee wireless communication module, the first-stage relay forwarding device transmits the data to the second-stage relay forwarding device through the 433 wireless communication module, … … and the like until the data is transmitted to the relay forwarding device connected with the target functional node, and finally the data is transmitted to the target functional node.
Compared with the prior art, the dual-wireless communication signal relay forwarding system provided by the invention has the following beneficial effects:
1. the wireless communication module not only supports Zigbee network communication, but also supports 433 network communication, and can be replaced by wireless communication modules with different frequency systems according to the situation of use, so that the wireless communication module can be flexibly applied.
2. Through setting up relay forwarding device, use Zigbee wireless communication module and 433 wireless communication module combination, can prolong the communication distance between the wireless device, extension equipment network quantity, the security is high simultaneously, interference killing feature is strong.
3. The equipment has small volume, easy installation and simple maintenance.
4. The relay forwarding device is supported to be used in cascade, data relay and forwarding of a plurality of devices are supported, the system is strong in expansibility, and the application scene of intelligent monitoring is widened.
Drawings
The drawings illustrate the invention by way of example, and not by way of limitation. Like reference numerals refer to like elements.
Fig. 1 is a schematic diagram of a dual wireless communication signal relay system according to the present invention;
fig. 2 is a block diagram of a relay forwarding device;
fig. 3 is a schematic diagram of a wireless communication system provided in embodiment 1;
fig. 4 is a schematic diagram of a dual wireless communication signal relay system provided in embodiment 2;
fig. 5 is a schematic diagram of a dual wireless communication signal relay system according to embodiment 3.
Detailed Description
The present disclosure may be best understood by reference to the detailed drawings and descriptions set forth herein.
Fig. 1 is a schematic diagram of a dual wireless communication signal relay forwarding system provided by the present invention, where the dual wireless communication signal relay forwarding system includes a gateway, a relay forwarding device, a 433 wireless communication module, a Zigbee wireless communication module, and the like.
For the near functional nodes with the communication distance within the range of 80 meters, the gateway is directly connected with the near functional nodes through the Zigbee wireless communication module.
Aiming at the functional nodes at the far positions with the communication distance in the range of 80-1500 meters, the gateway is connected with the relay forwarding device through the Zigbee wireless communication module, and the relay forwarding device is connected with the functional nodes at the far positions through the 433 wireless communication module.
For the functional nodes with the communication distance exceeding 1500 meters, the primary relay forwarding device cannot cover, multiple stages of relay forwarding devices can be arranged, adjacent relay forwarding devices are connected through 433 wireless communication modules, and each relay forwarding device is connected with the functional node in the corresponding area through 433 wireless communication modules.
With reference to fig. 2, the relay forwarding device mainly comprises two main control modules, a key operation module, an indicator light, a radio frequency antenna, a power supply module and the like. The two main control modules are respectively connected with the Zigbee wireless communication module and the 433 wireless communication module, respectively control the Zigbee wireless communication module and the 433 wireless communication module, are responsible for processing respective wireless network communication, and are respectively connected with the corresponding key operation module, the indicator light, the radio frequency antenna and the power supply module. The main control module can be replaced according to actual application, and network communication with different frequencies is realized. And UART serial communication is adopted between the two main control block modules, so that data communication between the two main control block modules is completed, and upstream and downstream data transparent transmission of the equipment network is mainly executed. The key operation module is used for networking operation and debugging operation of the equipment network, and the indicator lamp is used for indicating the working state.
The relay forwarding device realizes bridging between the Zigbee network and the 433 network, expands on the Zigbee equipment network, utilizes 433 wireless communication to communicate with a remote functional node through data up-down transparent transmission, improves the transmission distance of the wireless network, and realizes the equipment network routing function.
According to the invention, the characteristics of strong ad hoc network property, high safety and strong penetrating power and long transmission distance of the 433 wireless communication module are utilized, and the relay forwarding device is arranged to combine the Zigbee wireless communication module and the 433 wireless communication module, so that the functions of prolonging the communication distance between wireless devices, expanding the network quantity of the devices and widening the application scene of intelligent monitoring are achieved.
In the following, several specific examples are described.
Example 1
As shown in fig. 2, the gateway and the functional nodes are in the same indoor environment, the communication distance between the gateway and the functional nodes is within 80 meters, a relay forwarding device is not needed, and the gateway directly performs network communication with each functional node through the Zigbee wireless communication module.
Example 2
As shown in fig. 3, some remote functional nodes and the gateway are not in the same indoor environment, the communication distance between the remote functional nodes and the gateway is more than 80 meters, the gateway expands the network through the relay forwarding device, the gateway is connected with the relay forwarding device through the Zigbee wireless communication module, and the relay forwarding device is connected with the remote functional nodes through the 433 wireless communication module, so that the network communication between the gateway and the functional nodes within 1500 meters in straight line distance is realized.
Example 3
As shown in fig. 4, the communication distance between some further functional nodes and the gateway exceeds 1500 meters, at this time, the relay forwarding device can expand the lower level network, and then the relay forwarding device of the next level is connected through the 433 wireless communication module, so that the network continues to extend, and the gateway communicates with the functional nodes with the linear distance exceeding 1500 meters.
While the invention has been described with respect to preferred embodiments thereof, it will be understood by those skilled in the art that various modifications and additions may be made without departing from the scope of the invention. Equivalent embodiments of the present invention will be apparent to those skilled in the art having the benefit of the teachings disclosed herein, when considered in the light of the foregoing disclosure, and without departing from the spirit and scope of the invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the technical solution of the present invention.
Claims (8)
1. A relay forwarding method for dual wireless communication signals is characterized in that: the method adopts a double wireless communication signal relay forwarding system, wherein the double wireless communication signal relay forwarding system comprises a gateway, the gateway is connected with a first functional node through a Zigbee wireless communication module, the gateway is also connected with a relay forwarding device through the Zigbee wireless communication module, and the relay forwarding device is connected with a second functional node through a 433 wireless communication module;
the first functional node is a functional node with a communication distance with the gateway smaller than a first set threshold value;
the second functional node is a functional node with a communication distance between the second functional node and the gateway being greater than or equal to a first set threshold value and less than a second set threshold value;
the relay forwarding devices are provided with multiple stages, the gateway is connected with the first-stage relay forwarding device through a Zigbee wireless communication module, the relay forwarding devices of adjacent stages are connected through 433 wireless communication modules, and each stage of relay forwarding device is connected with a functional node in each communication range through each 433 wireless communication module;
the method comprises the following steps:
aiming at a first functional node with a communication distance smaller than a first set threshold value, a gateway directly communicates with the first functional node through a Zigbee wireless communication module;
for a second functional node with a communication distance larger than or equal to a first set threshold value and smaller than a second set threshold value, the gateway firstly transmits data to the relay forwarding device through the Zigbee wireless communication module, and the relay forwarding device transmits the data to the second functional node through the 433 wireless communication module;
and setting a multi-stage relay forwarding device aiming at the functional node with the communication distance larger than the second set threshold value, wherein the gateway firstly transmits data to the first-stage relay forwarding device through the Zigbee wireless communication module, the first-stage relay forwarding device transmits the data to the second-stage relay forwarding device through the 433 wireless communication module, and the like until the data is transmitted to the relay forwarding device connected with the target functional node, and finally the data is transmitted to the target functional node.
2. The dual radio signal relay method as claimed in claim 1, wherein: the first set threshold is the maximum distance that a Zigbee wireless communication module can be connected.
3. The dual radio signal relay method as claimed in claim 1, wherein: the second set threshold is the sum of the maximum distance that one Zigbee wireless communication module can connect with and the maximum distance that one 433 wireless communication module can connect with.
4. The dual radio signal relay method according to claim 1 or 2, wherein: the first set threshold is 80 meters.
5. A dual radio communication signal relay forwarding method according to claim 1 or 3, characterized in that: the second set threshold is 1500 meters.
6. The dual radio signal relay method as claimed in claim 1, wherein: the relay forwarding device comprises two main control modules which are connected with each other, and the two main control modules are respectively connected with the Zigbee wireless communication module and the 433 wireless communication module.
7. The dual wireless communication signal relay and forward system of claim 6, wherein: the two main control modules are connected through UART serial ports to realize data communication and execute the network uplink and downlink data transparent transmission of the equipment.
8. The dual wireless communication signal relay and forward system of claim 6, wherein: the two main control modules are respectively connected with the respective key operation module, the indicator lamp, the radio frequency antenna and the power supply module.
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