CN209787473U - system for seamless switching multiple wireless transmission modes - Google Patents
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Abstract
The utility model provides a system for seamlessly switching multiple wireless transmission modes, wherein a host computer is communicated with each node through a wireless transmission module; the wireless transmission modules comprise a plurality of types, and the sizes of all types of wireless transmission modules are consistent; different types of wireless transmission modules used in the host are integrated, each node is provided with one type of wireless transmission module, the type of the wireless transmission module of each node can be replaced at will, and the host and the nodes shield the difference of functions of the different types of wireless transmission modules through software. The utility model utilizes hardware to realize switching different wireless transmission modules, utilizes software to realize function difference, can seamlessly switch different wireless transmission modes, only needs to replace different wireless transmission modules with the same size, and greatly improves the development efficiency; the product data is high in repeated utilization rate, and the product cost is low; software classification development is carried out, and the iteration cycle is short; classification development, difference shielding and reduction of actual product maintenance.
Description
Technical Field
The utility model relates to a wireless transmission monitored control system that is used for power environment monitoring trade and security protection control trade especially relates to a seamless multiple wireless transmission mode's of switching system.
Background
In the existing power environment monitoring industry and security monitoring industry, the current mainstream monitoring mode is still transmitted in a wired mode. With the development of industrial internet of things, a wireless transmission mode can slowly replace a wired transmission mode. Various wireless transmission modes, such as Sub-G (e.g., 433Hz, Lora, etc.), 2.4GHz (e.g., Zigbee, BT, etc.), and other wireless transmission technologies have been struggled. According to different application scenarios, it is common practice that only one wireless transmission mode can be adopted, if different wireless transmission modes are to be changed, the system needs to be redesigned and pulled to move the whole body, and the following defects exist:
1. The same application product is only redesigned due to different wireless transmission modes, the utilization rate of data is low, the coupling function is increased, and the idle work is increased;
2. the availability is low, and the corresponding cost is high;
3. the development period is prolonged;
4. the software iteration development is not good;
5. The amount of product maintenance increases.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is how to realize multiple wireless transmission mode's seamless switching.
In order to solve the technical problem, the technical scheme of the utility model is to provide a seamless multiple wireless transmission mode's of switching system, its characterized in that: the system comprises a host, wherein the host is communicated with each node through a wireless transmission module;
The wireless transmission modules comprise a plurality of types, and the sizes of all types of wireless transmission modules are consistent;
Different types of wireless transmission modules used in the host are integrated, each node is provided with one type of wireless transmission module, the type of the wireless transmission module of each node can be replaced at will, and the host and the nodes shield the difference of functions of the different types of wireless transmission modules through software.
preferably, the node comprises a node controller and the wireless transmission module, the node controller collects information, shields function use differences of different wireless transmission modes, and performs wireless transmission communication through the wireless transmission module to reach the host.
Preferably, the host includes a main control processor and the wireless transmission modules of different types, the information of each node is collected by the wireless transmission module corresponding to each node, and the main control processor processes and analyzes the collected information of each node.
Preferably, the wireless transmission module comprises a main control MCU and a radio frequency module, and the main control MCU and the radio frequency module are connected and communicated by using a serial port; the radio frequency modules of different types of wireless transmission modules are different.
more preferably, the master MCU uses a chip EFM 32.
More preferably, the pin of the master control MCU is led out to a soldering point of the external butt joint of the wireless transmission module.
more preferably, the radio frequency module comprises a zigbee radio frequency module, a 433M radio frequency module.
More preferably, different types of the radio frequency module pairs are provided with different radio frequency module antenna radio frequency circuits.
More preferably, the specific method for the host and the node to mask the difference of the functions of the different types of wireless transmission modules through software is as follows:
step 1: various functional drives of a main control MCU of the wireless transmission module are realized;
step 2: the communication between the main control MCU of the wireless transmission module and the radio frequency module is realized, and different receiving and transmitting functions are called through serial port communication when different radio frequency modules are used;
And step 3: the method comprises the steps that the same custom protocol is nested and used on an application layer to achieve the purpose of using different types of protocols, wherein different fields are selected by a wireless type field to treat different types of wireless transmission modules differently, a sending address field and a receiving address field are used for identifying a wireless network, a channel field is used for identifying different function types and corresponding addresses, and different functions correspond to different command words;
and 4, step 4: after the host and the nodes are registered in a networking mode, the master control MCU acquires original data through driving, encapsulates a layer of custom protocol, calls a receiving and transmitting function of the radio frequency module through a serial port, wirelessly transmits the receiving and transmitting function to the opposite terminal, and analyzes the receiving and transmitting function to the opposite terminal according to the custom protocol to obtain the original data.
Further, in step 1, the various function drivers of the main control MCU of the wireless transmission module include a UART serial port driver, an ADC analog-to-digital conversion driver, a DI digital input driver, a DO digital output driver, and different functions corresponding to the serial port, current mode analog input, voltage mode analog input, digital input, and digital output of the hardware pin resource.
Compared with the prior art, the utility model provides a seamless multiple wireless transmission mode's of switching system has following beneficial effect:
1. Different wireless transmission modules are switched by using hardware, functional differences are realized by using software, different wireless transmission modes can be switched seamlessly, only different wireless transmission modules with the same size need to be replaced, and the development efficiency is greatly improved;
2. The product data is high in repeated utilization rate, and the product cost is low;
3. The development period is shortened;
4. software classification development is carried out, and the iteration cycle is short;
5. Classification development, difference shielding and reduction of actual product maintenance.
Drawings
the drawings illustrate, by way of example, the invention and do not limit the invention. Like reference numerals refer to like elements.
fig. 1 is a block diagram of a system for seamlessly switching multiple wireless transmission modes according to this embodiment;
FIG. 2 is a hardware block diagram of a wireless transmission module;
FIG. 3 is a diagram of a custom protocol.
Detailed Description
The disclosure may best be understood by reference to the detailed drawings and description set forth herein.
The embodiment mainly uses the host, the nodes and the wireless transmission modules, finally forms different nodes to cooperate with different wireless transmission modules, switches to use different wireless transmission modules, and can communicate with the host.
As shown in fig. 1, the system for seamlessly switching multiple wireless transmission modes provided in this embodiment includes three parts:
The first part is a wireless transmission module, different wireless modules use a hardware PIN2PIN design mode, seamless switching of various wireless transmission modes can be achieved, and function differences are shielded through software, for example, a node 1 originally adopts 433 wireless transmission and wants to adopt Zigbee wireless transmission instead, and only the 433 wireless transmission module is replaced by a hardware Zigbee wireless transmission module with the same size.
The second part is a node, which includes a node controller and a wireless transmission module. The node controller of the node end collects and collects information, the function use difference of different wireless transmission modes is shielded, wireless transmission communication is carried out through the wireless transmission module, and the information reaches the host end.
the third part is a host which comprises a host main control processor and different types of wireless transmission modules used, and the information of each node is collected through the wireless transmission modules corresponding to each node and is processed and analyzed in the host main control processor.
the implementation of the wireless transmission module includes hardware implementation and software implementation.
The hardware implementation steps are as follows:
step 1: the size of the wireless transmission module is determined, as shown in fig. 2, the wiring length X is 20.7mm, the width Y is 26.7mm, and the size is to be as small as possible.
step 2: the wireless transmission module comprises a main control MCU and a radio frequency module, wherein the main control MCU uses a low power consumption chip EFM32, the radio frequency module replaces a zigbee radio frequency module or a 433M radio frequency module and the like as required, and the main control MCU and the radio frequency module are connected and communicated through a serial port.
and step 3: when the zigbee radio frequency module or the 433M radio frequency module is replaced and used as required, the corresponding antenna radio frequency circuit needs to be adapted, the resistance value of the resistor-capacitor is adjusted, and a tool is used for looking at waveform adjustment and the like.
And 4, step 4: and leading out pin resources (different functions such as serial ports, current mode analog input, voltage mode analog input, digital output and the like) of the main control MCU for wiring, and distributing the pin resources on the butt joint welding points of the wireless transmission module.
And 5: the antenna radio frequency circuit and the radio frequency module in the wireless transmission module are different points, and different types of wireless modules are finally formed, such as a wireless zigbee module, a wireless 433 module and the like.
the software implementation steps are as follows:
Step 1: the EFM32 realizes various function drives of the MCU, relating to UART (serial port) drive, ADC (analog-to-digital conversion) drive, DI (digital input) drive, DO (digital output) drive and the like, and corresponding to different functions of serial ports, current type analog input, voltage type analog input, digital output and the like of hardware pin resources.
Step 2: the EFM32 main control MCU and the radio frequency module are communicated, different radio frequency modules are used, different receiving and transmitting functions are called through serial port communication, zigbee corresponds to zigbee _ send and zigbee _ rec receiving and transmitting functions, 433M corresponds to 433_ send and 433_ rec receiving and transmitting functions, and register receiving and transmitting operations of different radio frequency modules are packaged in the functions.
And step 3: as in fig. 3, the same custom protocol is nested at the application layer for the dual use of different types of protocols, where the wireless type field can be selected from 1: zigbee, 2: 433M, etc. to treat different types of wireless transmission modules differently, the sending address and receiving address fields are used as wireless network identifications, the channel fields are used as identification of different function types and corresponding addresses, and different functions correspond to different command words.
And 4, step 4: after the host and the node are networked and registered, the EFM32 main control MCU acquires original data through driving, after a layer of custom protocol is encapsulated, a receiving and transmitting function of the radio frequency module is called through a serial port and is wirelessly transmitted to an opposite terminal, and the opposite terminal analyzes according to the custom protocol to obtain the original data.
Claims (10)
1. A system for seamlessly switching a plurality of wireless transmission modes is characterized in that: the system comprises a host, wherein the host is communicated with each node through a wireless transmission module;
The wireless transmission modules comprise a plurality of types, and the sizes of all types of wireless transmission modules are consistent;
Different types of wireless transmission modules used in the host are integrated, each node is provided with one type of wireless transmission module, the type of the wireless transmission module of each node can be replaced at will, and the host and the nodes shield the difference of functions of the different types of wireless transmission modules through software.
2. The system for seamlessly switching between multiple wireless transmission modes as recited in claim 1, wherein: the node comprises a node controller and the wireless transmission module, the node controller collects information, shields the function use difference of different wireless transmission modes, and carries out wireless transmission communication through the wireless transmission module to reach the host.
3. the system for seamlessly switching between multiple wireless transmission modes as recited in claim 1, wherein: the host comprises a main control processor and different types of wireless transmission modules, the information of each node is collected through the wireless transmission modules corresponding to the nodes, and the main control processor processes and analyzes the collected information of each node.
4. the system for seamlessly switching between multiple wireless transmission modes as recited in claim 1, wherein: the wireless transmission module comprises a main control MCU and a radio frequency module, and the main control MCU and the radio frequency module are connected and communicated by using a serial port; the radio frequency modules of different types of wireless transmission modules are different.
5. The system for seamlessly switching between multiple wireless transmission modes as recited in claim 4, wherein: the master MCU uses a chip EFM 32.
6. The system for seamlessly switching between multiple wireless transmission modes according to claim 4 or 5, wherein: and a pin of the master control MCU is led out to a welding point which is butted with the outside of the wireless transmission module.
7. The system for seamlessly switching between multiple wireless transmission modes as recited in claim 4, wherein: the radio frequency module comprises a zigbee radio frequency module and a 433M radio frequency module.
8. The system for seamlessly switching between multiple wireless transmission modes according to claim 4 or 7, wherein: and different types of radio frequency module pairs are provided with different radio frequency module antenna radio frequency circuits.
9. The system for seamlessly switching between multiple wireless transmission modes as recited in claim 4, wherein: the specific method for shielding the difference of the functions of the different types of wireless transmission modules by the host and the node through software is as follows:
step 1: various functional drives of a main control MCU of the wireless transmission module are realized;
Step 2: the communication between the main control MCU of the wireless transmission module and the radio frequency module is realized, and different receiving and transmitting functions are called through serial port communication when different radio frequency modules are used;
And step 3: the method comprises the steps that the same custom protocol is nested and used on an application layer to achieve the purpose of using different types of protocols, wherein different fields are selected by a wireless type field to treat different types of wireless transmission modules differently, a sending address field and a receiving address field are used for identifying a wireless network, a channel field is used for identifying different function types and corresponding addresses, and different functions correspond to different command words;
and 4, step 4: after the host and the nodes are registered in a networking mode, the master control MCU acquires original data through driving, encapsulates a layer of custom protocol, calls a receiving and transmitting function of the radio frequency module through a serial port, wirelessly transmits the receiving and transmitting function to the opposite terminal, and analyzes the receiving and transmitting function to the opposite terminal according to the custom protocol to obtain the original data.
10. The system for seamlessly switching between multiple wireless transmission modes as recited in claim 9, wherein: in the step 1, the various function drivers of the main control MCU of the wireless transmission module include UART serial port driver, ADC analog-to-digital conversion driver, DI digital input driver, DO digital output driver, and different functions of serial port, current mode analog input, voltage mode analog input, digital input, and digital output corresponding to hardware pin resources.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920467769.2U CN209787473U (en) | 2019-04-09 | 2019-04-09 | system for seamless switching multiple wireless transmission modes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109963356A (en) * | 2019-04-09 | 2019-07-02 | 广州邦讯信息系统有限公司 | The system of a variety of wireless transmission methods of seamless switching |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109963356A (en) * | 2019-04-09 | 2019-07-02 | 广州邦讯信息系统有限公司 | The system of a variety of wireless transmission methods of seamless switching |
| CN109963356B (en) * | 2019-04-09 | 2024-04-19 | 广州邦讯信息系统有限公司 | System for seamless switching of multiple wireless transmission modes |
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