A relay module system based on radio frequency communication

Abstract

The utility model discloses a relay module system based on radio frequency communication relates to relay module technical field, including control radio frequency transceiver module and a plurality of executive radio frequency transceiver module, and control radio frequency transceiver module and executive radio frequency transceiver module carry out wireless radio frequency communication, control radio frequency transceiver module is connected with control communication module, and executive radio frequency transceiver module is connected with executive communication module, and control communication module and executive communication module include a plurality of input module and / or a plurality of output module, when control communication module only includes a plurality of output module, and executive communication module includes at least one input module, and executive radio frequency transceiver module receives input signal through input module and transmits to control radio frequency transceiver module, and control radio frequency transceiver module controls output module according to input signal. The system realizes relay module high efficiency, stable, long distance wireless control through adopting radio frequency wireless communication technology.

Description

Technical Field

[0001] This utility model relates to the field of relay module systems, and in particular to a relay module system based on radio frequency communication. Background Technology

[0002] In numerous fields such as industrial automation and smart homes, relay modules serve as key components in electrical control, undertaking important tasks such as signal conversion, isolation, and load control. Traditional relay module control methods largely rely on wired connections, which are extremely cumbersome during wiring, especially in complex industrial environments or large-scale smart home deployments. Extensive cabling not only incurs high costs but also presents significant maintenance challenges and limited flexibility. With the rapid development of wireless communication technology, wireless control relay modules have become a new trend in the industry.

[0003] However, existing wireless communication technologies (such as Wi-Fi, Bluetooth, and LoRa) present several challenges when applied to relay modules: Bluetooth technology has a relatively short communication range, typically between 10 and 100 meters, and this effective range may be even shorter in complex environments. This makes it unsuitable for large venues or scenarios requiring long-distance control. Wi-Fi wireless communication relay modules achieve remote control functions via Wi-Fi networks, but their power consumption is relatively high. Furthermore, Wi-Fi signals have weak wall penetration in complex environments, easily attenuated or interrupted by obstacles. Moreover, Wi-Fi networks are prone to congestion when too many devices are connected, affecting the control stability of the relay module. While LoRa wireless communication can achieve long-distance communication, its data transmission rate is relatively low in relay control scenarios, making it unsuitable for applications requiring high data transmission speeds. Furthermore, the current application ecosystem for LoRa technology is less mature than that of FSK RF technology, potentially presenting more challenges in device selection and system integration. Against this backdrop, developing a relay module with long communication distance, strong anti-interference capability, and low power consumption is of great practical significance and market demand. Utility Model Content

[0004] In response to the aforementioned problems and technical requirements, the applicant has proposed a relay module system based on radio frequency communication.

[0005] The technical solution of this utility model is as follows:

[0006] A relay module system based on radio frequency communication includes a control radio frequency transceiver module and several execution radio frequency transceiver modules, wherein the control radio frequency transceiver module and the execution radio frequency transceiver modules perform wireless radio frequency communication.

[0007] The control radio frequency transceiver module is connected to the control communication module, and the execution radio frequency transceiver module is connected to the execution communication module. The control communication module and the execution communication module include several input modules and / or several output modules.

[0008] When the control communication module includes only a number of output modules, the execution communication module includes at least one input module. The execution radio frequency transceiver module receives input signals through the input module and transmits them to the control radio frequency transceiver module. The control radio frequency transceiver module controls the output modules according to the input signals.

[0009] When the control communication module includes only a number of input modules, the execution communication module includes at least one output module. The control radio frequency transceiver module receives input signals through the input modules and transmits them to the execution radio frequency transceiver module. The execution radio frequency transceiver module controls the output module according to the input signals.

[0010] A further technical solution is that when the control communication module and the execution communication module include several input modules and several output modules, the input modules and the output modules are connected in series.

[0011] A further technical solution is that the control RF transceiver module and the execution RF transceiver module have the same structure, including connected RF transceiver circuits and expansion interface circuits, wherein...

[0012] The radio frequency transceiver circuit includes a CMT2391F128 radio frequency transceiver, antenna ANT1, inductors L2, L3, L5, L6, L7, L8, L9, L10, L11, capacitors C23, C6, C28, C29, C30, C31, C32, and C33; the radio frequency transceiver includes RXP pin, RXN pin, TX pin, and PA_VIO_VBAT pin;

[0013] The TX pin is connected to one end of inductor L10 via capacitor C27. The other end of inductor L10 is connected to one end of inductor L9 and one end of capacitor C31. The other end of inductor L9 is connected to one end of inductor L8, one end of inductor L5, and one end of capacitor C23. The other end of inductor L8 is connected to one end of capacitor C30 and one end of inductor L7. The other end of inductor L7 is connected to one end of inductor L6 and one end of capacitor C29. One end of inductor L6 is connected to antenna ANT1 and one end of capacitor C28. The other ends of capacitors C28, C29, C30, and C31 are grounded.

[0014] The other end of capacitor C23 is connected to one end of inductor L3, one end of inductor L2 and the RXP pin. The other end of inductor L5 is connected to the other end of inductor L3, one end of capacitor C26 and the RXN pin. The other end of capacitor C26 and the other end of inductor L2 are grounded.

[0015] The TX pin is also connected to one end of the inductor L11. The other end of the inductor L11 is connected to the power supply voltage VDD and is connected to one end of capacitor C32, one end of capacitor C33 and the PA_VIO_VBAT pin. The other ends of capacitors C32 and C33 are grounded.

[0016] A further technical solution is that the extended interface circuit includes a level converter IC3 and an interface J2. The level converter IC3 is connected to the radio frequency transceiver, and the interface J2 is connected to the radio frequency transceiver and the level converter IC3.

[0017] A further technical solution is that the input module includes an input interface J11, an optocoupler input module, a parallel-to-serial chip group, a level converter IC11, an output interface J21, and a voltage regulator IC21, wherein,

[0018] The input interface J11 is connected to the level converter IC11, the optocoupler input module is connected to the parallel-to-serial chip set, the level converter IC11 is connected to the parallel-to-serial chip set and the output interface J21, and the voltage regulator IC21 is connected to the optocoupler input module, the parallel-to-serial chip set and the level converter IC11.

[0019] A further technical solution is that the optocoupler input module includes multiple optocoupler input units, the parallel-to-serial chipset includes multiple parallel-to-serial chips, and the optocoupler input unit includes resistors R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, capacitors C1, C2, C3, and C4, optocoupler PC1, LED1', LED2, LED3, and LED4, wherein...

[0020] Input terminal X1 is connected to one end of capacitor C4, one end of resistor R8, and the seventh pin of optocoupler PC1 through resistor R4. The other end of capacitor C4 and the other end of resistor R8 are connected to the eighth pin of optocoupler PC1. The tenth pin of optocoupler PC1 is connected to the negative terminal of LED1. The positive terminal of LED1' is connected to the output terminal of voltage regulator IC21 through resistor R12.

[0021] Input terminal X2 is connected to one end of capacitor C3, one end of resistor R7, and the fifth pin of optocoupler PC1 through resistor R3. The other end of capacitor C3 and the other end of resistor R7 are connected to the sixth pin of optocoupler PC1. The twelfth pin of optocoupler PC1 is connected to the negative terminal of LED2. The positive terminal of LED2 is connected to the output terminal of voltage regulator IC21 through resistor R11.

[0022] Input terminal X3 is connected to one end of capacitor C2, one end of resistor R6, and the third pin of optocoupler PC1 through resistor R2. The other end of capacitor C2 and the other end of resistor R6 are connected to the fourth pin of optocoupler PC1. The fourteenth pin of optocoupler PC1 is connected to the negative terminal of LED3. The positive terminal of LED3 is connected to the output terminal of voltage regulator IC21 through resistor R10.

[0023] Input terminal X4 is connected to one end of capacitor C1, one end of resistor R5, and the first pin of optocoupler PC1 through resistor R1. The other end of capacitor C1 and the other end of resistor R5 are connected to the second pin of optocoupler PC1. The sixteenth pin of optocoupler PC1 is connected to the negative terminal of LED4. The positive terminal of LED4 is connected to the output terminal of voltage regulator IC21 through resistor R9.

[0024] The ninth, eleventh, thirteenth and fifteenth pins of the optocoupler PC1 are connected and grounded.

[0025] A further technical solution is that the output module includes an input interface J12, a relay output module, a serial-to-parallel converter chip, a level converter IC22, an output interface J22, and a voltage regulator IC32, wherein,

[0026] The input interface J12 is connected to the level converter IC22 and the serial-to-parallel converter chip. The level converter IC22 is connected to the serial-to-parallel converter chip, the relay output module, and the output interface J22. The voltage regulator IC32 is connected to the serial-to-parallel converter chip and the level converter IC22.

[0027] A further technical solution is that the relay output module includes a drive circuit and multiple relay output units, the drive circuit is connected to a serial-to-parallel converter chip, and the multiple relay output units are connected to the drive circuit.

[0028] The relay output unit includes a relay, a protective resistor, and an LED. One end of the relay coil is connected to the power supply voltage and is connected to the positive terminal of the LED through the resistor. The negative terminal of the LED is connected to the driving circuit and the other end of the relay coil. One end of the normally open contact of the relay is connected to the output terminal of the relay output unit, and the other end of the normally open contact of the relay is connected to the common terminal.

[0029] A further technical solution is that the control RF transceiver module and the execution RF transceiver module also include a power supply module. The power supply module includes an interface TB1, diodes D1 and D2, inductors L1 and L4, an anti-interference absorber, voltage regulators IC01 and IC02, capacitors C24, C25, C101, C102, C103, C104, C105, C106, C107, C108, and C109.

[0030] The first pin of interface TB1 is connected to the positive terminal of diode D1, the negative terminal of diode D1 is connected to one end of capacitor C24, one end of inductor L4 and one end of anti-interference absorber, the other end of capacitor C24 is connected to one end of capacitor C25 and grounded, the other end of capacitor C25 is connected to the second pin of interface TB1, and the third pin of interface TB1 is grounded.

[0031] The other end of the inductor L4 is connected to one end of the capacitor C101, the other end of the anti-interference absorber, and the input terminal of the voltage regulator IC01. The other end of the capacitor C101 is connected to the second pin of the interface TB1 and the ground terminal of the voltage regulator IC01. The capacitor C102 is connected in parallel with the capacitor C102.

[0032] The output terminal of the voltage regulator IC01 is connected to the negative terminal of diode D2 and one end of inductor L1. The positive terminal of diode D2 is grounded. The other end of inductor L1 is connected to one end of capacitors C103, C104, C105, resistor R101, C105, and C107. The other end of inductor L1 is also connected to the input terminal of voltage regulator IC02. The other ends of capacitors C103 and C104 are grounded.

[0033] The reference terminal of the voltage regulator IC01 is connected to the other end of capacitor C105, the other end of resistor R101, and one end of resistor R102. The other end of resistor R102 is connected to and grounded to the other end of capacitor C106, the other end of capacitor C107, and the ground terminal of voltage regulator IC02. The output terminal of voltage regulator IC02 is grounded through capacitor C108. Capacitor C109 is connected in parallel with capacitor C108.

[0034] A further technical solution is that the control RF transceiver module and the execution RF transceiver module also include a display circuit, which is connected to the RF transceiver circuit.

[0035] The beneficial technical effects of this utility model are:

[0036] This invention provides a relay module system based on radio frequency communication. Employing FSK radio frequency wireless communication control technology, it solves problems such as cumbersome wiring, limited communication distance, insufficient anti-interference capability, and high power consumption in existing relay module control methods. By using FSK radio frequency wireless communication technology, efficient, stable, and long-distance wireless control of the relay module is achieved, reducing system deployment costs and improving system flexibility and reliability. Attached Figure Description

[0037] Figure 1 This is a structural block diagram of one embodiment of the one-to-one radio frequency transceiver relay module system provided by this utility model.

[0038] Figure 2 This is a structural block diagram of one embodiment of the one-to-many radio frequency transceiver relay module system provided by this utility model.

[0039] Figure 3 This is a circuit schematic diagram of one embodiment of the radio frequency transceiver circuit provided by this utility model.

[0040] Figure 4 This is a circuit schematic diagram of one embodiment of the expansion interface circuit provided by this utility model.

[0041] Figure 5 This is a circuit schematic diagram of one embodiment of the display circuit provided by this utility model.

[0042] Figure 6 This is a circuit diagram of one embodiment of the power module provided by this utility model.

[0043] Figure 7 This is a circuit schematic diagram of one embodiment of the input interface J11 provided by this utility model.

[0044] Figure 8 This is a circuit schematic diagram of one embodiment of the output interface J21 provided by this utility model.

[0045] Figure 9 This is a circuit schematic diagram of one embodiment of the level converter IC11 provided by this utility model.

[0046] Figure 10 This is a circuit schematic diagram of one embodiment of the optocoupler input module provided by this utility model.

[0047] Figure 11This is a circuit schematic diagram of one embodiment of the voltage regulator IC21 provided by this utility model.

[0048] Figure 12 This is a circuit schematic diagram of one embodiment of the parallel-to-serial chipset provided by this utility model.

[0049] Figure 13 This is a circuit schematic diagram of one embodiment of the input interface J12 provided by this utility model.

[0050] Figure 14 This is a circuit schematic diagram of one embodiment of the output interface J22 provided by this utility model.

[0051] Figure 15 This is a circuit schematic diagram of one embodiment of the level converter IC22 provided by this utility model.

[0052] Figure 16 This is a circuit diagram of one embodiment of the serial-to-parallel converter chip U4 provided by this utility model.

[0053] Figure 17 This is a circuit diagram of one embodiment of the relay output module provided by this utility model.

[0054] Figure 18 This is a circuit schematic diagram of one embodiment of the voltage regulator IC32 provided by this utility model.

[0055] Figure 19 This is a schematic diagram of the external appearance of one embodiment of the control box panel provided by this utility model. Detailed Implementation

[0056] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this disclosure.

[0057] This utility model provides a relay module system based on radio frequency communication, including a control radio frequency transceiver module and several execution radio frequency transceiver modules, wherein the control radio frequency transceiver module and the execution radio frequency transceiver modules perform wireless radio frequency communication;

[0058] The control radio frequency transceiver module is connected to the control communication module, and the execution radio frequency transceiver module is connected to the execution communication module. The control communication module and the execution communication module include several input modules and / or several output modules.

[0059] When the control communication module includes only a number of output modules, the execution communication module includes at least one input module. The execution radio frequency transceiver module receives input signals through the input module and transmits them to the control radio frequency transceiver module. The control radio frequency transceiver module controls the output modules according to the input signals.

[0060] When the control communication module includes only a number of input modules, the execution communication module includes at least one output module. The control radio frequency transceiver module receives input signals through the input modules and transmits them to the execution radio frequency transceiver module. The execution radio frequency transceiver module controls the output module according to the input signals.

[0061] Specifically, when the relay module system includes a control RF transceiver module and an execution RF transceiver module, it forms a one-to-one RF transceiver relay module system. When the relay module system includes a control RF transceiver module and multiple execution RF transceiver modules, it forms a one-to-many RF transceiver relay module system. When the control communication module and the execution communication module include several input modules and several output modules, the input modules and the output modules are connected in series. When the control communication module and the execution communication module include multiple input modules and / or multiple output modules, the multiple input modules and / or multiple output modules are connected in series. In specific implementations, the number of input modules and output modules in the control communication module and the execution communication module can be set according to the actual application requirements.

[0062] like Figure 1 As shown, in one embodiment of this utility model, the one-to-one radio frequency transceiver relay module system is formed, and the control communication module and the execution communication module each include an input module and an output module. When both the control communication module and the execution communication module include an input module and an output module, the control radio frequency transceiver module can obtain an input signal through the connected input module and transmit the input signal to the execution radio frequency transceiver module through wireless radio frequency communication. The execution radio frequency transceiver module controls the connected output module to output a corresponding output signal according to the input signal. At the same time, the execution radio frequency transceiver module can obtain an input signal through the connected input module and transmit the input signal to the control radio frequency transceiver module through wireless radio frequency communication. The control radio frequency transceiver module controls the connected output module to output a corresponding output signal according to the input signal. That is, the input signal received by the control radio frequency transceiver module controls the output module connected to the execution radio frequency transceiver module, and the input signal received by the execution radio frequency transceiver module controls the output module connected to the control radio frequency transceiver module to output a corresponding output signal.

[0063] like Figure 2As shown, in one embodiment of this utility model, a one-to-many RF transceiver relay module system is formed. The control communication module includes an input module, and the execution communication module includes an output module. The input signal of the control communication module can be a device control signal from the PLC master control device. The PLC master control device can also be connected to the control RF transceiver module for Modbus communication. After receiving the device control signal, the execution RF transceiver module outputs a corresponding signal to the control device through the connected output module, so as to realize that the PLC master control device controls the operation of the control device through the relay module system. The execution RF transceiver module can also be connected to an instrument for Modbus communication.

[0064] The wireless radio frequency communication can employ a combination of FSK frequency shift keying modulation technology and frequency hopping technology. In one embodiment of this invention, the carrier frequency range is 427.42MHz to 440.22MHz, divided into 128 channels, with each channel corresponding to a carrier frequency interval of 100kHz. In the relay module system, the RF transceiver module selects one channel as the center carrier frequency, which, together with two adjacent channels, forms three carrier frequency points for frequency hopping communication. In situations where multiple relay module systems are used simultaneously, frequency hopping communication can effectively avoid co-channel interference. The RF data baud rate is 42.000kbps, providing faster communication speeds. Compared to 2.4G high-frequency wireless signals, the 427.42MHz to 440.22MHz wireless signals have lower requirements for components in the circuit, thereby reducing the overall cost of the solution. The specific implementation of the FSK frequency shift keying modulation technology and frequency hopping technology is consistent with existing technologies and will not be elaborated here.

[0065] The wireless communication employs a combination of timed and real-time transmission and reception mechanisms. When the input / output state of the input / output module remains unchanged, a radio frequency (RF) wireless signal is transmitted every 300ms to ensure effective control and simultaneously detect whether communication is normal. When the input / output state of the input / output module changes, the RF transceiver module is controlled to communicate in a timely manner to ensure timely response to the input / output state. Each time an RF wireless signal is transmitted and received, frequency hopping is used on three carrier frequencies, with each carrier frequency retransmitted twice. After receiving a correct response from the RF transceiver module, the current communication is completed. The frequency hopping and retransmission mechanisms enhance the anti-interference capability of wireless communication and ensure its reliability.

[0066] Furthermore, the control RF transceiver module and the execution RF transceiver module have the same structure, including connected RF transceiver circuits and expansion interface circuits. The RF transceiver circuit includes a CMT2391F128 RF transceiver, antenna ANT1, inductors L2, L3, L5, L6, L7, L8, L9, L10, L11, capacitors C23, C6, C28, C29, C30, C31, C32, and C33. The RF transceiver includes RXP pins, RXN pins, TX pins, and PA_VIO_VBAT pins.

[0067] Please refer to Figure 3 The TX pin is connected to one end of inductor L10 via capacitor C27. The other end of inductor L10 is connected to one end of inductor L9 and one end of capacitor C31. The other end of inductor L9 is connected to one end of inductor L8, one end of inductor L5, and one end of capacitor C23. The other end of inductor L8 is connected to one end of capacitor C30 and one end of inductor L7. The other end of inductor L7 is connected to one end of inductor L6 and one end of capacitor C29. One end of inductor L6 is connected to antenna ANT1 and one end of capacitor C28. Capacitors C28, C29, and C30 are connected to... The other end of capacitor C31 is grounded; the other end of capacitor C23 is connected to one end of inductor L3, one end of inductor L2, and the RXP pin; the other end of inductor L5 is connected to the other end of inductor L3, one end of capacitor C26, and the RXN pin; the other end of capacitor C26 and the other end of inductor L2 are grounded; the TX pin is also connected to one end of inductor L11; the other end of inductor L11 is connected to the power supply voltage VDD and is connected to one end of capacitor C32, one end of capacitor C33, and the PA_VIO_VBAT pin; the other ends of capacitors C32 and C33 are grounded.

[0068] The 62nd pin of the RF transceiver is grounded through capacitor C22 and connected to the third pin of crystal oscillator X2. The 63rd pin of the RF transceiver is grounded through capacitor C20 and connected to the first pin of crystal oscillator X2. The fourth and second pins of crystal oscillator X2 are grounded. The 21st pin of the RF transceiver is connected to the 20th pin through resistor R12 and grounded through capacitor C38. The 19th pin of the RF transceiver is grounded through capacitor C37 and connected to the third pin of crystal oscillator X1. The 18th pin of the RF transceiver is grounded through capacitor C36 and connected to the first pin of crystal oscillator X1. Crystal oscillators X1 and X2 provide the operating clock for the RF transceiver. When operating in transmit mode, the current is less than 100mA; when operating in receive mode, the current is less than 12mA; and in standby mode, the current is less than 5uA. It has low power consumption, lower power supply requirements, a wider range of applications, and better adaptability to certain specific application scenarios.

[0069] Furthermore, the expansion interface circuit includes a level converter IC3 and an interface J2. The level converter IC3 is connected to the RF transceiver, and the interface J2 is connected to both the RF transceiver and the level converter IC3. In this embodiment, the level converter IC3 is model 74AHC244PW. Figure 4 As shown, the second pin of the level converter IC3 is connected to the twenty-seventh pin of the RF transceiver. The fourth to ninth pins of the level converter IC3 are connected to the twenty-eighth pin of the RF transceiver, the fourth pin of interface J2, the twenty-ninth pin of the RF transceiver, the twelfth pin of interface J2, the thirtieth pin of the RF transceiver, and the thirty-first pin of the RF transceiver, respectively. The eleventh, twelfth, fourteenth, sixteenth, and eighteenth pins of the level converter IC3 are connected to the third, sixth, seventh, fifth, and eighth pins of interface J2, respectively. The thirteenth and fifteenth pins of the level converter IC3 are connected to the forty-second and thirty-second pins of the RF transceiver, respectively. The tenth and eleventh pins of interface J2 are connected to the thirty-third and thirty-fourth pins of the RF transceiver, respectively. The first and fourteenth pins of interface J2 are connected to a 24V power supply, while the second and thirteenth pins are grounded.

[0070] Furthermore, the control RF transceiver module and the execution RF transceiver module also include a display circuit. The display circuit is connected to the RF transceiver circuit and is used to display the transmission and reception status of the control RF transceiver module and the execution RF transceiver module, and to display the system number when multiple relay module systems are used simultaneously. One embodiment of the display circuit is as follows: Figure 5As shown, the display chip IC6, model AIP650, and LED1 are included. The eighth to sixteenth pins of the display chip IC6 are connected to the corresponding pins of LED1 through a resistor. The second and third pins of the display chip are connected to the twenty-second and twenty-third pins of the RF transceiver.

[0071] Furthermore, the control RF transceiver module and the execution RF transceiver module also include a power supply module, which provides 3.3V voltage to the RF transceiver, level converter IC3, and display chip IC6. Figure 6 As shown, the power module includes interface TB1, diode D1, diode D2, inductor L1, inductor L4, anti-interference absorber, voltage regulator IC01, voltage regulator IC02, capacitor C24, capacitor C25, capacitor C101, capacitor C102, capacitor C103, capacitor C104, capacitor C105, capacitor C106, capacitor C107, capacitor C108, and capacitor C109, wherein...

[0072] The first pin of interface TB1 is connected to the positive terminal of diode D1. The negative terminal of diode D1 is connected to one end of capacitor C24, one end of inductor L4, and one end of the anti-interference absorber. The other end of capacitor C24 is connected to one end of capacitor C25 and grounded. The other end of capacitor C25 is connected to the second pin of interface TB1. The third pin of interface TB1 is grounded. The input voltage VIN is connected to the power module through interface TB1. The other end of inductor L4 is connected to one end of capacitor C101, the other end of the anti-interference absorber, and the input terminal of voltage regulator IC01. The other end of capacitor C101 is connected to the second pin of interface TB1 and the ground terminal of voltage regulator IC01. Capacitor C102 is connected in parallel with capacitor C102.

[0073] The output terminal (SW) of the voltage regulator IC01 is connected to the negative terminal of diode D2 and one end of inductor L1. The positive terminal of diode D2 is grounded. The other end of inductor L1 is connected to one end of capacitors C103, C104, C105, resistor R101, and C107. The other end of inductor L1 is also connected to the input terminal of voltage regulator IC02. The other ends of capacitors C103 and C104 are grounded. The reference terminal of voltage regulator IC01 is connected to the other end of capacitor C105, the other end of resistor R101, and one end of resistor R102. The other end of resistor R102 is connected to and grounded to the other end of capacitor C106, the other end of capacitor C107, and the ground terminal of voltage regulator IC02. The output terminal of voltage regulator IC02 is grounded through capacitor C108. Capacitor C109 is connected in parallel with capacitor C108. The voltage regulator IC02 outputs 3.3V to pins 19, 46, and 57 of the RF transceiver, pin 20 of the level converter IC3, and pin 10 of the display chip IC6. The control and execution components of the RF transceiver module are typically housed in a control box. Figure 19 A view of the control box panel is shown, such as... Figure 19 As shown, LED1, interface TB1, interface J2, etc. are all located on the control box panel.

[0074] Furthermore, the input module includes an input interface J11, an optocoupler input module, a parallel-to-serial converter chipset, a level converter IC11, an output interface J21, and a voltage regulator IC21. The input interface J11 is connected to the level converter IC11, the optocoupler input module is connected to the parallel-to-serial converter chipset, the level converter IC11 is connected to both the parallel-to-serial converter chipset and the output interface J21, and the voltage regulator IC21 is connected to the optocoupler input module, the parallel-to-serial converter chipset, and the level converter IC11.

[0075] like Figures 7-12 As shown, the third to eighth pins of the input interface J11 are connected to the ninth, fifteenth, fourth, eighth, sixth, and second pins of the level converter IC11, respectively. The twelfth pin of the input interface J11 is connected to the thirteenth pin of the level converter IC11. The fourth to ninth pins and the twelfth pin of the output interface J2 are connected to the fifth, sixteenth, twelfth, fourteenth, eighteenth, and seventh pins of the level converter IC11, respectively.

[0076] The optocoupler input module includes multiple optocoupler input units, and the parallel-to-serial chip group includes multiple parallel-to-serial chips, such as... Figure 10 and Figure 12As shown, this embodiment includes four optocoupler input units and two parallel-to-serial converter chips (U1, U2). Each optocoupler input unit has the same structure and four input terminals, for a total of 16 input terminals (X1-X16). In this embodiment, the 16 input signals can be input to the corresponding input terminals through interfaces CN1-CN8. Taking one optocoupler input unit as an example, the optocoupler input unit includes resistors R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, capacitors C1, C2, C3, C4, optocoupler PC1, LED1', LED2, LED3, and LED4. Input terminal X1 is connected to one end of resistor R4 and capacitor C4. One end of resistor R8 is connected to pin 7 of optocoupler PC1. The other end of capacitor C4 and resistor R8 are connected to pin 8 of optocoupler PC1. Pin 10 of optocoupler PC1 is connected to the negative terminal of LED1'. The positive terminal of LED1' is connected to the output terminal of voltage regulator IC21 through resistor R12. Input terminal X2 is connected to one end of capacitor C3, one end of resistor R7, and pin 5 of optocoupler PC1 through resistor R3. The other end of capacitor C3 and resistor R7 are connected to optocoupler PC1. Pin 6 of C1 is connected to the power supply. Pin 12 of the optocoupler PC1 is connected to the negative terminal of LED2. The positive terminal of LED2 is connected to the output terminal of voltage regulator IC21 through resistor R11. Input terminal X3 is connected to one end of capacitor C2, one end of resistor R6, and pin 3 of optocoupler PC1 through resistor R2. The other end of capacitor C2 and the other end of resistor R6 are connected to pin 4 of optocoupler PC1. Pin 14 of optocoupler PC1 is connected to the negative terminal of LED3. The positive terminal of LED3 is connected to resistor R10. The input terminal X4 is connected to the output terminal of the voltage regulator IC21. Input terminal X4 is connected to one end of capacitor C1, one end of resistor R5, and the first pin of optocoupler PC1 via resistor R1. The other end of capacitor C1 and the other end of resistor R5 are connected to the second pin of optocoupler PC1. The sixteenth pin of optocoupler PC1 is connected to the negative terminal of LED4. The positive terminal of LED4 is connected to the output terminal of voltage regulator IC21 via resistor R9. The ninth, eleventh, thirteenth, and fifteenth pins of optocoupler PC1 are connected to ground. LED1' and LEDs 2-4 are used to indicate the input status of input terminals X1-X4, respectively.

[0077] Pins 10, 12, 14, and 16 of optocoupler PC1 serve as output terminals DI1-DI4. The four optocoupler input units form a total of 16 output terminals (DI1-DI16). DI1-DI8 are connected to the corresponding pins of parallel-to-serial converter chip U1, and DI9-DI16 are connected to the corresponding pins of parallel-to-serial converter chip U2. Pins 3 and 9 through 11 of parallel-to-serial converter chip U2 are connected to pins 11, 9, and 10 of parallel-to-serial converter chip U2, respectively, and pin 7 of level conversion chip IC11. Pins 3, 9, and 10 of parallel-to-serial converter chip U2 are connected to pins 11, 14, and 7 of level conversion chip IC11, respectively. The signals output from output terminals DI1-DI4 are converted into serial signals by the parallel-to-serial converter chip and then input to the level conversion chip. After conversion by the level conversion chip, the signals are transmitted to the corresponding linked RF transceiver module. The input module is connected to the control RF transceiver module or the execution RF transceiver module via input interface J11. The input module can also be connected in series with the output module or other input modules via input / output interfaces. Both the input and output terminals of the voltage regulator IC21 are connected to ground via capacitors. The voltage regulator IC21 converts the 5V voltage to 3.3V and applies it to the power pins of the optocouplers (PC1-PC4), the parallel-to-serial converter chips (U1, U2), and the level conversion chip IC1. The optocouplers in the input module are model ACPL-244, the parallel-to-serial converter chips are model CD4021, and the level conversion chip IC1 is model 74AHC244PW.

[0078] Furthermore, the output module includes an input interface J12, a relay output module, a serial-to-parallel converter chip, a level converter IC22, an output interface J22, and a voltage regulator IC32, such as... Figures 13-18 As shown, the input interface J12 is connected to the level converter IC22 and the serial-to-parallel converter chip. The level converter IC22 is connected to the serial-to-parallel converter chip, the relay output module, and the output interface J22. The voltage regulator IC32 is connected to the serial-to-parallel converter chip and the level converter IC22.

[0079] Specifically, pins 3 to 8, 10, and 12 of the input interface J12 are connected to pin 9 of the level converter IC22, pin 2 of the serial-to-parallel chip U4, and pins 4, 8, 6, 2, 13, and 3 of the level converter IC22, respectively. Pins 15, 1, 3, and 10 of the serial-to-parallel chip U4 are connected to pins 12, 16, 18, and 15 of the level converter IC22. Pins 3 to 8, 10, and 12 of the output interface J22 are connected to pins 11, 5, 16, 12, 14, 18, 7, and 17 of the level converter IC22, respectively. The output module can be connected to interface J2 in the control RF transceiver module or the execution RF transceiver module via the input interface, or it can be connected in series with the input module or other output modules via the input / output interface.

[0080] The relay output module includes a drive circuit and multiple relay output units. The drive circuit is connected to the serial-to-parallel converter chip U4, and the multiple relay output units are connected to the drive circuit. In this embodiment, the drive circuit includes a drive chip U3, a transistor TR1, and a diode D3. The seven input terminals (IN1-IN7) of the drive chip U3 are respectively connected to the seven output terminals (O1-O7) of the serial-to-parallel converter chip U4. The eighth output terminal O8 of the serial-to-parallel converter chip U4 is connected to the base of the transistor TR1 through a protection resistor. The collector of the transistor TR1 is connected to the anode of the diode D3 and serves as the eighth output terminal Y8 of the drive circuit. The cathode of the diode D3 is connected to a 24V voltage. The emitter of the transistor TR1 is grounded, and the base of the transistor TR1 is connected to the emitter through a protection resistor. The input and output terminals of the voltage regulator IC32 are both connected to a pair of ground capacitors. The input terminal of the voltage regulator IC32 is connected to a 5V voltage, and the output 3.3V voltage is supplied to the power supply pins of the level converter IC22 and the driver chip U3.

[0081] The seven output terminals of the driver chip U3 serve as the first to seventh output terminals (Y1-Y7) of the driver circuit. Each output terminal of the driver circuit is connected to a relay output unit, resulting in a total of eight relay output units in this embodiment. Each relay output unit includes a relay, a protective resistor, and an LED. One end of the relay coil is connected to a 24V power supply and then to the positive terminal of the LED through a resistor. The negative terminal of the LED is connected to the corresponding output terminal of the driver circuit and the other end of the relay coil. One end of the normally open contact of the relay is connected to the output terminal of the relay output unit, and the other end is connected to a common terminal. In this embodiment, the other ends of the normally open contacts of the first to fourth relay output units are connected to the common terminal COM1, and the other ends of the normally open contacts of the fifth to eighth relay output units are connected to the common terminal COM2. The output terminals (OUT1-OUT8) of the eight relay output units and the common terminal are connected to the controlled device through four interfaces (CN1-CN4). In this embodiment, the level converter IC22 is model 74AHC244PW, the driver chip U3 is model LR2003A / L, and the serial-to-parallel converter chip U4 is model CD4094.

[0082] In the description of this specification, the terms "first," "second," "third," "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0083] The use of terms such as "an embodiment / mode" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode. Furthermore, the specific features, structures, or characteristics described may be combined in any suitable manner in one or more embodiments / modes. Those skilled in the art should understand that the above embodiments are merely for clearly illustrating this disclosure and are not intended to limit the scope of this disclosure. For those skilled in the art, other changes or modifications can be made based on the above disclosure, and these changes or modifications still fall within the scope of this disclosure.

Claims

1. A relay module system based on radio frequency communication, characterized in that, It includes a control radio frequency transceiver module and several execution radio frequency transceiver modules, wherein the control radio frequency transceiver module and the execution radio frequency transceiver modules perform wireless radio frequency communication; The control radio frequency transceiver module is connected to the control communication module, and the execution radio frequency transceiver module is connected to the execution communication module. The control communication module and the execution communication module include several input modules and / or several output modules. When the control communication module includes only a number of output modules, the execution communication module includes at least one input module. The execution radio frequency transceiver module receives input signals through the input module and transmits them to the control radio frequency transceiver module. The control radio frequency transceiver module controls the output modules according to the input signals. When the control communication module includes only a number of input modules, the execution communication module includes at least one output module. The control radio frequency transceiver module receives input signals through the input modules and transmits them to the execution radio frequency transceiver module. The execution radio frequency transceiver module controls the output module according to the input signals.

2. The relay module system based on radio frequency communication according to claim 1, characterized in that, When the control communication module and the execution communication module include several input modules and several output modules, the input modules and the output modules are connected in series.

3. The relay module system based on radio frequency communication according to claim 1, characterized in that, The control RF transceiver module and the execution RF transceiver module have the same structure, including connected RF transceiver circuits and expansion interface circuits, wherein... The radio frequency transceiver circuit includes a CMT2391F128 radio frequency transceiver, antenna ANT1, inductors L2, L3, L5, L6, L7, L8, L9, L10, L11, capacitors C23, C6, C28, C29, C30, C31, C32, and C33; the radio frequency transceiver includes RXP pin, RXN pin, TX pin, and PA_VIO_VBAT pin; The TX pin is connected to one end of inductor L10 via capacitor C27. The other end of inductor L10 is connected to one end of inductor L9 and one end of capacitor C31. The other end of inductor L9 is connected to one end of inductor L8, one end of inductor L5, and one end of capacitor C23. The other end of inductor L8 is connected to one end of capacitor C30 and one end of inductor L7. The other end of inductor L7 is connected to one end of inductor L6 and one end of capacitor C29. One end of inductor L6 is connected to antenna ANT1 and one end of capacitor C28. The other ends of capacitors C28, C29, C30, and C31 are grounded. The other end of capacitor C23 is connected to one end of inductor L3, one end of inductor L2 and the RXP pin. The other end of inductor L5 is connected to the other end of inductor L3, one end of capacitor C26 and the RXN pin. The other end of capacitor C26 and the other end of inductor L2 are grounded. The TX pin is also connected to one end of the inductor L11. The other end of the inductor L11 is connected to the power supply voltage VDD and is connected to one end of capacitor C32, one end of capacitor C33 and the PA_VIO_VBAT pin. The other ends of capacitors C32 and C33 are grounded.

4. The relay module system based on radio frequency communication according to claim 3, characterized in that, The expansion interface circuit includes a level converter IC3 and an interface J2. The level converter IC3 is connected to the radio frequency transceiver, and the interface J2 is connected to both the radio frequency transceiver and the level converter IC3.

5. The relay module system based on radio frequency communication according to claim 3, characterized in that, The input module includes an input interface J11, an optocoupler input module, a parallel-to-serial converter chipset, a level converter IC11, an output interface J21, and a voltage regulator IC21, wherein... The input interface J11 is connected to the level converter IC11, the optocoupler input module is connected to the parallel-to-serial chip set, the level converter IC11 is connected to the parallel-to-serial chip set and the output interface J21, and the voltage regulator IC21 is connected to the optocoupler input module, the parallel-to-serial chip set and the level converter IC11.

6. The relay module system based on radio frequency communication according to claim 5, characterized in that, The optocoupler input module includes multiple optocoupler input units, the parallel-to-serial chipset includes multiple parallel-to-serial chips, and the optocoupler input unit includes resistors R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, capacitors C1, C2, C3, and C4, optocoupler PC1, LED1', LED2, LED3, and LED4, wherein... Input terminal X1 is connected to one end of capacitor C4, one end of resistor R8, and the seventh pin of optocoupler PC1 through resistor R4. The other end of capacitor C4 and the other end of resistor R8 are connected to the eighth pin of optocoupler PC1. The tenth pin of optocoupler PC1 is connected to the negative terminal of LED1. The positive terminal of LED1' is connected to the output terminal of voltage regulator IC21 through resistor R12. Input terminal X2 is connected to one end of capacitor C3, one end of resistor R7, and the fifth pin of optocoupler PC1 through resistor R3. The other end of capacitor C3 and the other end of resistor R7 are connected to the sixth pin of optocoupler PC1. The twelfth pin of optocoupler PC1 is connected to the negative terminal of LED2. The positive terminal of LED2 is connected to the output terminal of voltage regulator IC21 through resistor R11. Input terminal X3 is connected to one end of capacitor C2, one end of resistor R6, and the third pin of optocoupler PC1 through resistor R2. The other end of capacitor C2 and the other end of resistor R6 are connected to the fourth pin of optocoupler PC1. The fourteenth pin of optocoupler PC1 is connected to the negative terminal of LED3. The positive terminal of LED3 is connected to the output terminal of voltage regulator IC21 through resistor R10. Input terminal X4 is connected to one end of capacitor C1, one end of resistor R5, and the first pin of optocoupler PC1 through resistor R1. The other end of capacitor C1 and the other end of resistor R5 are connected to the second pin of optocoupler PC1. The sixteenth pin of optocoupler PC1 is connected to the negative terminal of LED4. The positive terminal of LED4 is connected to the output terminal of voltage regulator IC21 through resistor R9. The ninth, eleventh, thirteenth and fifteenth pins of the optocoupler PC1 are connected and grounded.

7. The relay module system based on radio frequency communication according to claim 2, characterized in that, The output module includes an input interface J12, a relay output module, a serial-to-parallel converter chip, a level converter IC22, an output interface J22, and a voltage regulator IC32. The input interface J12 is connected to the level converter IC22 and the serial-to-parallel converter chip. The level converter IC22 is connected to the serial-to-parallel converter chip, the relay output module, and the output interface J22. The voltage regulator IC32 is connected to the serial-to-parallel converter chip and the level converter IC22.

8. The relay module system based on radio frequency communication according to claim 7, characterized in that, The relay output module includes a drive circuit and multiple relay output units. The drive circuit is connected to a serial-to-parallel converter chip, and the multiple relay output units are connected to the drive circuit. The relay output unit includes a relay, a protective resistor, and an LED. One end of the relay coil is connected to the power supply voltage and is connected to the positive terminal of the LED through the resistor. The negative terminal of the LED is connected to the driving circuit and the other end of the relay coil. One end of the normally open contact of the relay is connected to the output terminal of the relay output unit, and the other end of the normally open contact of the relay is connected to the common terminal.

9. The relay module system based on radio frequency communication according to claim 7, characterized in that, The control RF transceiver module and the execution RF transceiver module further include a power supply module. The power supply module includes an interface TB1, diodes D1 and D2, inductors L1 and L4, an anti-interference absorber, voltage regulators IC01 and IC02, capacitors C24, C25, C101, C102, C103, C104, C105, C106, C107, C108, and C109. The first pin of interface TB1 is connected to the positive terminal of diode D1, the negative terminal of diode D1 is connected to one end of capacitor C24, one end of inductor L4 and one end of anti-interference absorber, the other end of capacitor C24 is connected to one end of capacitor C25 and grounded, the other end of capacitor C25 is connected to the second pin of interface TB1, and the third pin of interface TB1 is grounded. The other end of the inductor L4 is connected to one end of the capacitor C101, the other end of the anti-interference absorber, and the input terminal of the voltage regulator IC01. The other end of the capacitor C101 is connected to the second pin of the interface TB1 and the ground terminal of the voltage regulator IC01. The capacitor C102 is connected in parallel with the capacitor C102. The output terminal of the voltage regulator IC01 is connected to the negative terminal of diode D2 and one end of inductor L1. The positive terminal of diode D2 is grounded. The other end of inductor L1 is connected to one end of capacitors C103, C104, C105, resistor R101, C105, and C107. The other end of inductor L1 is also connected to the input terminal of voltage regulator IC02. The other ends of capacitors C103 and C104 are grounded. The reference terminal of the voltage regulator IC01 is connected to the other end of capacitor C105, the other end of resistor R101, and one end of resistor R102. The other end of resistor R102 is connected to and grounded to the other end of capacitor C106, the other end of capacitor C107, and the ground terminal of voltage regulator IC02. The output terminal of voltage regulator IC02 is grounded through capacitor C108. Capacitor C109 is connected in parallel with capacitor C108.

10. The relay module system based on radio frequency communication according to claim 3, characterized in that, The control RF transceiver module and the execution RF transceiver module also include a display circuit, which is connected to the RF transceiver circuit.

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