CN217088175U

CN217088175U - Wireless gateway circuit, wireless gateway and wireless communication module

Info

Publication number: CN217088175U
Application number: CN202220866116.3U
Authority: CN
Inventors: 郑松青
Original assignee: Fuzhou Fuguang Baite Automation Equipment Co ltd
Current assignee: Fuzhou Fuguang Baite Automation Equipment Co ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-07-29
Anticipated expiration: 2032-04-14

Abstract

The application provides a wireless communication module, includes: a wireless gateway; the RS485 communication channels are connected with the two paths of the wireless gateway; a terminal; the terminal includes: the second wireless module is configured to interactively communicate with the two first wireless modules, so that a wireless network works on two different RS485 communication channels; the MCU is connected with the second wireless module and is configured to wake up the terminal and activate the second wireless module; the manual activation circuit is configured to send a level signal to trigger the level change of the MCU, so that the MCU wakes up the terminal and activates the second wireless module; and the remote wake-up detection and module wake-up circuit is configured to detect a level signal sent by the manual activation circuit and send a level signal for waking up the terminal and activating the second wireless module to the MCU. This application lets wireless network communication more stable and reliable through using binary channels wireless gateway.

Description

Wireless gateway circuit, wireless gateway and wireless communication module

Technical Field

The application relates to the technical field of wireless communication, in particular to a wireless gateway circuit, a wireless gateway and a wireless communication module.

Background

With the increasing popularization of wireless communication technology, under the complex environmental conditions of high temperature, high humidity, sealing, toxic gas, explosion prevention and the like and the conditions without field wiring, more and more devices are transformed by wireless communication, so that a plurality of industrial field devices which originally do not have measuring conditions realize real-time data monitoring, the industrial production process is accurately controlled, and the industrial production efficiency is greatly improved. However, under the circumstances that more and more devices are arranged in a wireless network with a single channel and data acquisition and data reception are more and more frequent, wireless communication data interfere with each other and collide with each other, so that the failure rate of real-time data acquisition or state data reception is higher and higher, the success rate of communication data acquisition is finally lower and lower, and meanwhile, the power consumption of battery devices is indirectly higher and higher, and the service life is shorter and lower.

In view of this, it is important to design a stable and reliable wireless gateway circuit, a wireless gateway and a wireless communication module.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the present application provides a wireless gateway circuit, a wireless gateway and a wireless communication module.

According to the first aspect of this application, a wireless gateway circuit is proposed, be in including RS485 communication port and independent connection the two way RS485 communication channel of RS485 communication port, two the RS485 communication channel all includes RS485 interface chip, six reverser chips, two photoelectric isolation chips and relevant peripheral circuit, two that the order is connected the output of photoelectric isolation chip still is connected with first wireless port, wherein, six reverser chips are CD4069 chips.

Through the technical scheme, wireless communication data between the two RS485 communication channels cannot interfere with each other and collide with each other, so that wireless network communication is more stable and reliable.

Preferably, the RS485 interface chip is an MX3085EISA chip, and the photoelectric isolation chip is a 6N137S chip; the 6 th pin and the 7 th pin of the RS485 interface chip are connected to two interfaces of the RS485 communication port, the 1 st pin of the RS485 interface chip is connected with the 11 th pin of the six-inverter chip, the 2 nd pin and the 3 rd pin of the RS485 interface chip are connected with the 2 nd pin of the six-inverter chip, and the 4 th pin of the RS485 interface chip is connected with the 13 th pin of the six-inverter chip.

Preferably, the peripheral circuit of the six-inverter chip comprises a first capacitor, a second capacitor, a resistor and a switching diode; a 14 th pin of the sixth inverter chip is connected with one end of the first capacitor and a power supply VCC, and the other end of the first capacitor is grounded; the 1 st pin of the six-reverser chip is connected with the second capacitor, one end of the resistor and the anode of the switch diode, the other end of the second capacitor is grounded, and the other end of the resistor and the cathode of the switch diode are connected with the 4 th pin of the six-reverser chip.

Through the technical scheme, the automatic switching of the transmitting and receiving levels of the MX3085EISA chip is realized by the second capacitor, the resistor and the switch diode in the chip with the six-direction inverter and the peripheral circuit thereof.

Preferably, a voltage stabilizing diode is respectively connected in series between the 6 th pin and the 7 th pin of the RS485 interface chip and the ground terminal GNG.

Through the technical scheme, the voltage stabilizing diode plays a role in protecting the RS485 communication port.

According to a second aspect of the present application, a wireless gateway is proposed, comprising the wireless gateway circuit as described above.

Preferably, the wireless gateway further includes two first wireless modules, and the two first wireless modules are respectively connected to the two first wireless ports.

According to a third aspect of the present application, a wireless communication module is provided, which includes the wireless gateway as described above.

Preferably, the wireless communication module further includes: the network monitoring equipment is connected with the two RS485 communication channels of the wireless gateway; a terminal; the terminal includes: the second wireless module is configured to interactively communicate with the two first wireless modules, so that a wireless network works on two different RS485 communication channels; the MCU is connected with the second wireless module and is configured to wake up the terminal and activate the second wireless module; the manual activation circuit is configured to send a level signal to trigger the level change of the MCU, so that the MCU wakes up the terminal and activates the second wireless module; and the remote wake-up detection and module wake-up circuit is configured to detect a level signal sent by the manual activation circuit and send a level signal for waking up the terminal and activating the second wireless module to the MCU.

Through the technical scheme, the wireless network works in a dual-communication channel by using the dual-channel wireless gateway. And then, a manual activation circuit is combined, a remote wake-up detection and module wake-up circuit is used for timely switching communication channels, so that the whole wireless network independently works on two communication channels of terminal real-time data acquisition and terminal state data reception respectively, the phenomenon of packet loss caused by mutual collision of data information in the real-time data acquisition and state data reception process of a wireless gateway is avoided, and the wireless network communication is more stable and reliable. Meanwhile, the power consumption of the battery equipment is reduced, and the service life of the battery is prolonged.

Preferably, the manual activation circuit comprises a waterproof button KW1, a capacitor C61, a resistor R61 and a resistor R62; waterproof button KW1 the electric capacity C61 resistance R61 with resistance R62's one end is connected MCU's P1 end, waterproof button KW1 electric capacity C61 with resistance R62's the other end ground connection, resistance R61's another termination power V +.

Through the technical scheme, the MCU level can be triggered to change by manually pressing the waterproof button KW 1.

Preferably, the remote wake-up detection and module wake-up circuit includes a second wireless port connected to the second wireless module, and a 3 rd pin and a 4 th pin of the second wireless port are connected to a P3 terminal and a P2 terminal of the MCU, respectively.

Through the technical scheme, the second wireless module actively sends a low level to the P3 pin of the MCU after being awakened by the wireless network, and the MCU awakens the terminal after detecting the signal. The module wake-up circuit is realized by the output port P2 of the MCU, the P2 is directly connected to the wake-up pin of the second wireless module, and the P2 outputs a low level to activate the sleeping second wireless module.

The application provides a wireless gateway circuit, wireless gateway and wireless communication module, through using binary channels wireless gateway, let wireless network work at dual communication channel, the manual activation circuit that combines again, long-range awakening detection and module awaken circuit up, switch over communication channel in good time, let whole wireless network independent work respectively on terminal real-time data gathers and two communication channels of terminal state data receipt, can improve wireless network communication's success rate, the data information that wireless gateway appears in real-time data collection and state data receiving process collides each other and the packet loss phenomenon that leads to has been avoided completely, let wireless network communication more stable and reliable. Meanwhile, the power consumption of the battery equipment is reduced, and the service life of the battery is prolonged.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain the principles of the application. Other embodiments and many of the intended advantages of embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.

Fig. 1 is a circuit diagram of a wireless gateway circuit according to a specific embodiment of the present application;

FIG. 2 is a schematic diagram of a wireless gateway, according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a wireless communication module according to an embodiment of the present application;

FIG. 4 is a circuit diagram of a manual activation circuit according to a specific embodiment of the present application;

FIG. 5 is a circuit diagram of a remote wake detect and module wake up circuit according to an embodiment of the present application.

The meaning of each number in the figure: 1-a network monitoring device; 2-a wireless gateway; 3-a terminal; 31-MCU; 32-manual activation circuit; 33-remote wake-up detection and module wake-up circuitry; MB1, MB 2-first wireless module; MB 3-second wireless module.

Detailed Description

In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the application may be practiced. In this regard, directional terminology, such as "top," "bottom," "left," "right," "up," "down," etc., is used with reference to the orientation of the figures being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and logical changes may be made without departing from the scope of the present application. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present application is defined by the appended claims.

According to a first aspect of the present application, a wireless gateway circuit is presented.

Fig. 1 shows a circuit diagram of a wireless gateway circuit according to an embodiment of the present application, and as shown in fig. 1, the wireless gateway circuit includes an RS485 communication port J1(5P-2.54) and two RS485 communication channels (RS485 i, RS485 ii) independently connected to the RS485 communication port J1. The two RS485 communication channels have the same structure, and the wireless gateway circuit will be described with the first RS485 communication channel RS485 i.

Specifically, the RS485 communication channel includes an RS485 interface chip U101, a six-inverter chip U104, two optoelectronic isolation chips U102 and U103, and related peripheral circuits, which are sequentially connected, and a first wireless port J2(4P-2.54) connected to output ends of the two optoelectronic isolation chips. The RS485 interface chip U101 is an MX3085EISA chip, the six-inverter chip U104 is a CD4069 chip, and the two photoelectric isolation chips U102 and U103 are 6N137S chips.

With continued reference to fig. 1, the 6 th pin and the 7 th pin of the RS485 interface chip U101 are connected to two interfaces (the 4 th pin and the 5 th pin) of the RS485 communication port; a 5 th pin of the RS485 interface chip U101 is grounded GND; a pin 8 of the RS485 interface chip U101 is connected with a power supply VCC and one end of a capacitor C1, and the other end of the capacitor C1 is grounded GND; the 1 st pin of the RS485 interface chip U101 is connected with the 11 th pin of the six-inverter chip U104; the 2 nd pin and the 3 rd pin of the RS485 interface chip U101 are connected with the 2 nd pin of the six-inverter chip U104; the 4 th pin of the RS485 interface chip U101 is connected with the 13 th pin of the sixth inverter chip U104.

With continued reference to fig. 1, the peripheral circuitry of the hexainverter chip U104 includes a first capacitor C2, a second capacitor C3, a resistor R1, and a switching diode D1. A 14 th pin of the six-inverter chip U104 is connected with one end of a first capacitor C2 and a power supply VCC, and the other end of the first capacitor C2 is grounded GND; the 1 st pin of the six-inverter chip U104 is connected with one end of a second capacitor C3, one end of a resistor R1 and the anode of a switch diode D1, the other end of the second capacitor C3 is grounded GND, and the other end of a resistor R1 and the cathode of a switch diode D1 are connected with the 4 th pin of the six-inverter chip U104.

The six-inverter chip U104 and the second capacitor C3, the resistor R1 and the switch diode D1 in the peripheral circuit thereof realize the automatic switching of the transmitting and receiving levels of the MX3085EISA chip.

In a preferred embodiment, zener diodes ZD1, ZD2 are respectively connected in series between the 6 th pin and the 7 th pin of the RS485 interface chip and the ground terminal GNG, and zener diodes ZD1, ZD2 play a role in protecting the RS485 communication port J1.

The wireless gateway circuit adopts two RS485 communication channels, wireless communication data between the two RS485 communication channels cannot interfere with each other and collide with each other, and therefore wireless network communication is more stable and reliable.

According to a second aspect of the present application, a wireless gateway is presented.

Fig. 2 is a schematic structural diagram of a wireless gateway according to a specific embodiment of the present application, and as shown in fig. 2, the wireless gateway includes the wireless gateway circuit of the first aspect of the present application, and two first wireless modules MB1 and MB2 respectively connected to two first wireless ports.

According to a second aspect of the present application, a wireless communication module is provided.

Fig. 3 is a schematic structural diagram of a wireless communication module according to an embodiment of the present application, and as shown in fig. 3, the wireless communication module includes a wireless gateway 2 according to a second aspect of the present application, and:

the network monitoring equipment 1 is connected with two RS485 communication channels RS 485I and RS485 II of the wireless gateway 2;

a terminal 3;

the terminal 3 includes:

the second wireless module MB3 is configured to interactively communicate with the two first wireless modules MB1 and MB2, so that the wireless network works on two different RS485 communication channels RS 485I and RS485 II;

the MCU 31, connect with second wireless module MB3, dispose and is used for waking up the terminal 3 and activating the second wireless module MB 3;

a manual activation circuit 32 configured to send a level signal to trigger a level change of the MCU 31, so that the MCU 31 wakes up the terminal 3 and activates the second wireless module MB 3;

the remote wake-up detection and module wake-up circuit 33 is configured to detect the level signal sent by the manual activation circuit 32 and send a level signal to the MCU 31 to wake-up the terminal 3 and activate the second wireless module MB 3.

In a specific embodiment, the network monitoring device 1 may be a PC or an android device.

FIG. 4 shows a circuit diagram of a manual activation circuit according to one embodiment of the present application, and as shown in FIG. 4, in one embodiment, manual activation circuit 32 includes waterproof button KW1, capacitor C61, resistor R61 and resistor R62. MCU 31's P1 end is connected to waterproof button KW1, electric capacity C61, resistance R61 and resistance R62's one end, waterproof button KW1, electric capacity C61 and resistance R62's other end ground connection GND, resistance R61's other end connection power V +.

The function of the manual activation circuit 32 is mainly to wake up the terminal 3 by triggering the level change of P1 of the MCU 31 through the waterproof button KWI when needed. The terminal 3 activates the second wireless module MB3, switches the RS485 communication channel to RS485 ii, and then actively sends the status data information of the terminal 3 to the wireless network. After the information is successfully sent, the terminal 3 switches the RS485 communication channel to the RS 485I, and finally enters the dormant state again.

Fig. 5 shows a circuit diagram of a remote wake-up detection and module wake-up circuit according to an embodiment of the present application, and as shown in fig. 5, in an embodiment, the remote wake-up detection and module wake-up circuit 33 includes a second wireless port J6(6P-2.54) connected to the second wireless module MB3, and a 3 rd pin (i.e., WakeUP wake-up pin) and a 4 th pin (i.e., Active pin) of the second wireless port J6 are respectively connected to a P3 terminal and a P2 terminal of the MCU 31.

The second wireless module MB3 actively sends a low level to the pin P3 of the MCU 31 after being awakened by the wireless network, and the MCU 31 wakes up the terminal 3 after detecting the low level. The remote wake-up detection and module wake-up circuit 33 is implemented via the output port P2 of the MCU 31, the P2 is directly connected to the 3 rd pin (wake-up pin) of the second wireless module MB3, and the P2 outputs a low level to activate the sleeping second wireless module MB 3.

The implementation principle of the embodiment is as follows: the wireless gateway 2 is provided with two RS485 communication channels RS 485I and RS485 II, and the wireless network can work on two mutually independent communication channels. The wireless gateway 2 is connected to the network monitoring device 1(PC or android device) through an RS485 communication port J1. The network monitoring equipment 1 periodically and sequentially sends awakening commands to all terminals 3 in the network through an RS485 communication channel RS 485I of the wireless gateway 2, and collects real-time data of the terminals 3; meanwhile, the network monitoring equipment 1 monitors and receives the state information reported by the terminal 3 through another RS485 communication channel RS485 II of the wireless gateway 2. The manual activation circuit 32 can trigger the level change of the P1 of the MCU 31 through the waterproof button KWI when necessary, and cooperate with the remote wake-up detection and module wake-up circuit 33 to wake up the terminal 3 and activate the second module MB 3.

It is apparent that various modifications and variations can be made to the embodiments of the present application by those skilled in the art without departing from the spirit and scope of the application. In this way, if these modifications and changes are within the scope of the claims of the present application and their equivalents, the present application is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps than those listed in a claim. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims shall not be construed as limiting the scope.

Claims

1. The utility model provides a wireless gateway circuit, its characterized in that includes RS485 communication port and independently connects two way RS485 communication channel, two way RS485 communication channel all includes RS485 interface chip, six reverser chips, two photoelectric isolation chips and relevant peripheral circuit, two that the order is connected the output of photoelectric isolation chip still is connected with first wireless port, wherein, six reverser chips are the CD4069 chip.

2. The wireless gateway circuit of claim 1, wherein the RS485 interface chip is an MX3085EISA chip, and the optoelectronic isolation chip is a 6N137S chip; the 6 th pin and the 7 th pin of the RS485 interface chip are connected to two interfaces of the RS485 communication port, the 1 st pin of the RS485 interface chip is connected with the 11 th pin of the six-inverter chip, the 2 nd pin and the 3 rd pin of the RS485 interface chip are connected with the 2 nd pin of the six-inverter chip, and the 4 th pin of the RS485 interface chip is connected with the 13 th pin of the six-inverter chip.

3. The wireless gateway circuit of claim 2, wherein the peripheral circuitry of the hexainverter chip comprises a first capacitor, a second capacitor, a resistor, and a switching diode; a 14 th pin of the sixth inverter chip is connected with one end of the first capacitor and a power supply VCC, and the other end of the first capacitor is grounded; the 1 st pin of the six-reverser chip is connected with the second capacitor, one end of the resistor and the anode of the switch diode, the other end of the second capacitor is grounded, and the other end of the resistor and the cathode of the switch diode are connected with the 4 th pin of the six-reverser chip.

4. The wireless gateway circuit according to claim 2, wherein zener diodes are respectively connected in series between the pin 6 and the pin 7 of the RS485 interface chip and the ground terminal GNG.

5. A wireless gateway comprising the wireless gateway circuitry of any of claims 1-4.

6. The wireless gateway of claim 5, further comprising two first wireless modules, wherein the two first wireless modules are respectively connected to the two first wireless ports.

7. A wireless communication module comprising a wireless gateway as claimed in any one of claims 5 to 6.

8. The wireless communication module of claim 7, further comprising:

the network monitoring equipment is connected with the two RS485 communication channels of the wireless gateway;

a terminal;

the terminal includes:

the second wireless module is configured to interactively communicate with the two first wireless modules, so that a wireless network works on two different RS485 communication channels;

the MCU is connected with the second wireless module and is configured to wake up the terminal and activate the second wireless module;

the manual activation circuit is configured to send a level signal to trigger the level change of the MCU, so that the MCU wakes up the terminal and activates the second wireless module;

and the remote wake-up detection and module wake-up circuit is configured to detect a level signal sent by the manual activation circuit and send a level signal for waking up the terminal and activating the second wireless module to the MCU.

9. The wireless communication module of claim 8, wherein the manual activation circuit comprises a waterproof button KW1, a capacitor C61, a resistor R61, and a resistor R62; waterproof button KW1 the electric capacity C61 resistance R61 with resistance R62's one end is connected MCU's P1 end, waterproof button KW1 electric capacity C61 with resistance R62's the other end ground connection, resistance R61's another termination power V +.

10. The wireless communication module of claim 8, wherein the remote wake-up detection and module wake-up circuit comprises a second wireless port connected to the second wireless module, and a 3 rd pin and a 4 th pin of the second wireless port are respectively connected to a P3 terminal and a P2 terminal of the MCU.