Modular radio frequency assembly

Abstract

The utility model relates to the technical field of radio frequency communication, in particular to a modular radio frequency assembly, which comprises a receiving module, a processing module, an output module and a transmission control module, the receiving module is connected with the processing module through the transmission control module, and the processing module is connected with the output module; the transmission control module comprises a channel module and a judgment module, the channel module is connected with the judgment module, the judgment module is used for judging the signal strength of the transmission end, a judged result signal is transmitted to the channel module, and the channel module selects a proper channel to transmit the signal of the transmission end according to the result signal of the judgment module; according to the utility model, the technical problem that the traditional radio frequency assembly cannot adaptively adjust the processing mode according to the signal intensity is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of radio frequency communication, and more specifically, to a modular radio frequency component. Background Art

[0002] A radio frequency component is a key component in the field of communication technology and is used to process and transmit radio frequency signals. It includes a receiving module, a processing module, and an output module. The receiving module converts an electromagnetic signal into an electrical signal and transmits it to the processing module. The processing module processes the electrical signal. The processing module includes, but is not limited to, a limiter, an attenuator, an amplifier, and a power divider. After the processing module finishes processing the signal, it is transmitted to the output module, and the output module outputs the final signal. The processing methods of the processing module include, but are not limited to, attenuation, amplification, filtering, and energy distribution to ensure signal quality while completing energy distribution. The radio frequency component integrates various parts into independent small modules, and the small modules cooperate with each other, improving the flexibility and maintainability of the system.

[0003] Before receiving a signal, the processing module also needs to ensure that the signal strength meets its internal standard, that is, it is necessary to determine whether the electrical signal transmitted by the receiving module is within the working range of each electronic device in the processing module. If the signal is too strong, it may exceed the working limit of the device, resulting in signal distortion. To prevent the signal from being too strong, an attenuator and a limiter are added to the traditional processing module to attenuate the strong signal. However, this processing mode is relatively fixed. When the transmit power of the signal source changes or the loss in the signal propagation path changes, resulting in the signal changing from strong to weak, the quality of the weak signal after processing cannot be guaranteed. Although the attenuator and the limiter can be replaced with an amplifier to increase the signal, real-time monitoring by humans is required. If the signal frequently changes between strong and weak, the staff needs to frequently replace the module, which is not only time-consuming and laborious but also inefficient. Summary of the Utility Model

[0004] The purpose of this application is to provide a modular radio frequency component, which solves the technical problem that the traditional radio frequency component cannot adaptively adjust the processing method according to the signal strength.

[0005] To solve the above technical problem, the solution adopted in this application is as follows:

[0006] The utility model provides a modular radio frequency component, including a receiving module, a processing module, and an output module. The processing module is respectively connected to the receiving module and the output module. It is characterized in that: it further includes a transmission control module. The receiving module is connected to the processing module through the transmission control module. The transmission control module includes a channel module and a judgment module, and the channel module is connected to the judgment module.

[0007] The judgment module is used to judge the signal strength at the transmission end, and the judged result signal is transmitted to the channel module;

[0008] The judgment module includes a time limit circuit and a counting circuit, and the time limit circuit is connected to the counting circuit; the counting circuit is respectively connected to the time limit circuit, the receiving module, and the channel module;

[0009] The time limit circuit is used to set a time; the counting circuit counts the number of times the voltage exceeds the range within the time set by the time limit circuit;

[0010] The channel module transmits the signal at the transmission end through a suitable channel according to the result signal of the judgment module;

[0011] The channel module includes a switch circuit, an amplification circuit, and an attenuation circuit. The switch circuit is respectively connected to the receiving module, the input end of the amplification circuit, the input end of the attenuation circuit, and the output end of the counting circuit. The output ends of the amplification circuit and the attenuation circuit are both connected to the processing module;

[0012] The switch circuit is used to switch channels; the amplification circuit is used to amplify the signal; the attenuation circuit is used to attenuate the signal.

[0013] In some embodiments, the time limit circuit includes a signal generator, a counter, a self-locking circuit, and a NOT gate. The signal generator, the counter, and the start circuit are connected to each other in pairs. The counter is connected to the counting circuit through the NOT gate;

[0014] The self-locking circuit transmits a control signal to the signal generator and the counter, and the signal generator and the counter start working and start timing; when the timing ends, the counter outputs a control signal to the signal generator, the counter, and the self-locking circuit, and the signal generator and the counter are reset, and the self-locking circuit releases the self-locking state.

[0015] In some embodiments, the self-locking circuit includes an OR gate, a first triode, a second triode, and a plurality of resistors. One input end of the OR gate is connected to the output end of the counting circuit, the output end of the OR gate is connected to the gate of the first triode, the other input end of the OR gate is connected to the emitter of the first triode, and the emitter of the first triode is connected to the emitter of the second triode through a resistor and grounded; the collector of the first triode is connected to the collector of the second triode and is connected to the power supply through a resistor; the base of the second triode is connected to the counter.

[0016] In some embodiments, the signal generator is a timer, and the model of the timer is NE555DR.

[0017] In some embodiments, the counting circuit includes a window comparator, a counter, and a potentiometer. The reference voltage terminal of the window comparator is connected to the potentiometer. The input terminal of the window comparator is connected to the receiving module. The output terminal of the window comparator is connected to the input terminal of the counter, and the output terminal of the counter is connected to the switch circuit.

[0018] In some embodiments, the counting circuit further includes a NOT gate. The output terminal of the counter is connected to the reset terminal of the counter through the NOT gate.

[0019] In some embodiments, the model number of the counter is 74LS161.

[0020] In some embodiments, the switch circuit includes a first switch element and a second switch element. The control terminals of the first switch element and the second switch element are simultaneously connected to the output terminal of the counting circuit. The receiving module transmits signals to the amplification circuit or the attenuation circuit through the first switch assembly or the second switch assembly.

[0021] In some embodiments, a power supply module is further included. The power supply module is respectively connected to the transmission control module and the processing module.

[0022] The technical solution of the present application has at least the following advantages and beneficial effects:

[0023] 1. The present utility model is provided with a transmission control module, which includes a channel module and a judgment module. The judgment module and the channel module cooperate to autonomously judge the signal strength transmitted by the receiving module and switch channels according to the signal strength, so that the signal received by the processing module will not be too strong or too weak, thus solving the technical problem that traditional radio frequency components cannot adaptively adjust the processing method according to the signal strength.

[0024] 2. The judgment module includes a time limit circuit and a counting circuit. The counting circuit counts the number of times of voltages exceeding the range within the time specified by the time limit circuit. The channel module includes a switch circuit, an amplification circuit, and an attenuation circuit. If the number of times exceeds the specified number within the specified time, it means that the signal transmitted by the receiving module is strong, and the switch circuit needs to turn on the attenuation circuit to attenuate the signal. If the number of times does not exceed the specified number within the specified time, it means that the signal transmitted by the receiving module is weak or normal, and the switch circuit turns on the amplification circuit to amplify the signal. This working method ensures that the subsequent processing module can receive signals with appropriate strength.

[0025] 3. The modular design of the present utility model ensures that each module can operate independently without being potentially interfered by other modules, which greatly facilitates subsequent maintenance and adjustment work. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the signal flow chart of the present utility model;

[0027] Figure 2 is the judgment module diagram of the present utility model;

[0028] Figure 3 is the channel module diagram of the present utility model. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. If terms such as "center", "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application. It should also be noted that unless otherwise clearly defined and limited, if terms such as "set", "installed", "connected" are understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0031] Embodiment 1

[0032] Please refer to Figures 1 - 3 , the present utility model provides a modular radio frequency component. The same as the prior art, it includes a receiving module, a processing module, and an output module. The processing module is respectively connected to the receiving module and the output module. The receiving module transmits signals to the processing module for processing. After completion, the processing module outputs signals through the output module; the processing module includes a limiter, an attenuator, a filter amplifier, and a power divider. The signals transmitted by the receiving module are processed in sequence through the limiter, the attenuator, the filter amplifier, and the power divider.

[0033] In this embodiment, the model of the limiter is AD8309ARUZ-REEL7, the model of the attenuator is HMC1119LP4METR, and the model of the power splitter is HT-SBTC-2-10L.

[0034] In this embodiment, the filter amplifier is a low-pass filter, and its model is MAX7410EUA.

[0035] Different from the prior art, it further includes a transmission control module, and the receiving module is connected to the processing module through the transmission control module; the transmission control module includes a channel module and a judgment module, and the channel module is connected to the judgment module;

[0036] The judgment module is used to judge the signal strength at the transmission end, and the judged result signal is transmitted into the channel module;

[0037] The judgment module includes a time limit circuit and a counting circuit, and the time limit circuit is connected to the counting circuit; the counting circuit is respectively connected to the time limit circuit, the receiving module, and the channel module;

[0038] The time limit circuit is used to specify the time; the counting circuit counts the number of voltage times exceeding the range within the time specified by the time limit circuit.

[0039] Specifically, the time limit circuit includes a signal generator, a counter, a self-locking circuit, and a NOT gate. The signal generator, the counter, and the start circuit are connected to each other in pairs, and the counter is connected to the counting circuit through the NOT gate;

[0040] The self-locking circuit transmits a control signal to the signal generator and the counter, and the signal generator and the counter start to work and start timing; when the timing ends, the counter outputs a control signal to the signal generator, the counter, and the self-locking circuit, the signal generator and the counter are reset, and the self-locking circuit releases the self-locking state;

[0041] Specifically, the self-locking circuit includes an OR gate, a first triode, a second triode, and multiple resistors. One input end of the OR gate is connected to the output end of the counting circuit, the output end of the OR gate is connected to the gate of the first triode, the other input end of the OR gate is connected to the emitter of the first triode, and the emitter of the first triode is connected to the emitter of the second triode through a resistor and grounded; the collector of the first triode is connected to the collector of the second triode and is connected to the power supply through a resistor; the base of the second triode is connected to the counter.

[0042] In this embodiment, the signal generator is a timer, and the model of the timer is NE555DR.

[0043] Specifically, the counting circuit includes a window comparator, a counter, and a potentiometer. The reference voltage terminal of the window comparator is connected to the potentiometer, the input terminal of the window comparator is connected to the receiving module, the output terminal of the window comparator is connected to the input terminal of the counter, and the output terminal of the counter is connected to the switching circuit;

[0044] It should be noted that the counting circuit further includes a NOT gate, and the output terminal of the counter is connected to the reset terminal of the counter through the NOT gate.

[0045] Furthermore, the judgment module includes operational amplifiers U1, U2, counters U3, U6, an OR gate U4, a timer U5, NOT gates U10, U11, diodes D1, D2, a first triode Q3, a second triode Q4, potentiometers PR1, PR2, resistors R1, R2, R3, R4, R5, R6, a polarized capacitor C1, and a common capacitor C2;

[0046] Among them, the counting module includes operational amplifiers U1, U2, diodes D1, D2, resistors R1, R2, potentiometers PR1, PR2, and a counter U3, and a NOT gate U10; the time limit module includes a counter U6, an OR gate U4, a timer U5, a NOT gate U11, a first triode Q3, a second triode Q4, resistors R3, R4, R5, R6, a polarized capacitor C1, and a common capacitor C2;

[0047] In the time limit module, the self-locking circuit includes resistors R5, R6, a first triode Q3, a second triode Q4, and an OR gate U4;

[0048] Specifically, the positive input terminal of operational amplifier U1 is connected to the negative input terminal of operational amplifier U2. The pin 4 of operational amplifier U1 is connected to the positive power supply. The negative input terminal of operational amplifier U1 is connected to the middle pin of potentiometer PR1. One end of potentiometer PR1 is connected to the positive power supply, and the other end of potentiometer PR1 is connected to one end of resistor R1. The other end of resistor R1 is connected to pin 5 of operational amplifier U1 and grounded. The output terminal of operational amplifier U1 is connected to the anode of diode D1. The pin 4 of operational amplifier U2 is connected to the positive power supply, and pin 5 is grounded. The negative input terminal of operational amplifier U2 is connected to the middle pin of potentiometer PR2. One end of potentiometer PR2 is connected to the negative power supply, and the other end of potentiometer PR2 is connected to one end of resistor R2. The other end of resistor R2 is grounded. The output terminal of operational amplifier U2 is connected to the anode of diode D2. The cathodes of diode D1 and diode D2 and pin 2 of counter U3 are connected. Pins 7, 9, 10, and 16 of counter U3 are connected and connected to the positive power supply. Pins 3, 4, 5, 6, and 8 of counter U3 are connected and grounded. Pin 14 of counter U3 is connected to terminal A of OR gate U4. Pin 1 of counter U3, the negative terminal of NOT gate U10, and the negative terminal of NOT gate U11 are connected. Pin 15 of counter U3 is connected to the positive terminal of NOT gate U10, and the UT_OUT output terminal is set here. The base of triode Q4, pin 15 of counter U6, and the positive terminal of NOT gate U11 are connected. Terminal C of OR gate U4 is connected to the base of triode Q3. The collector of triode Q3, the collector of triode Q4, and one end of resistor R5 are connected. The other end of resistor R5 is connected to the positive power supply. The emitter of triode Q3, one end of resistor R6, terminal B of OR gate U4, pin 4 of timer U5, and pin 1 of counter U6 are connected. The other end of resistor R6 is connected to the emitter of triode Q4 and grounded. Pins 7, 9, 10, and 16 of counter U6 are connected and connected to the positive power supply. Pins 3, 4, 5, 6, and 8 of counter U6 are connected and grounded. Pin 2 of counter U6 is connected to pin 3 of timer U5. Pin 1 of timer U5, the cathode of polarized capacitor C1, and one end of ordinary capacitor C2 are connected and grounded. The other end of ordinary capacitor C2 is connected to pin 5 of timer U5. Pins 2 and 6 of timer U5, one end of resistor R4, and the anode of polarized capacitor C1 are connected. The other end of resistor R4, one end of resistor R3, and pin 7 of timer U5 are connected. The other end of resistor R3 is connected to pin 8 of timer U5 and connected to the positive power supply.

[0049] It should be noted that the UT_IN input terminal is connected to the output terminal of the receiving module, and the UT_OUT output terminal is connected to the channel module.

[0050] It should be noted that the potentiometer can adjust the parameter range of the window comparator to ensure that the judgment module can be applied to the radio frequency signal processing in various application scenarios.

[0051] In this embodiment, both the first triode and the second triode are NPN type.

[0052] The channel module transmits the signal at the transmission end through a suitable channel according to the result signal of the judgment module;

[0053] The channel module includes a switching circuit, an amplifying circuit, and an attenuating circuit. The switching circuit is respectively connected to the receiving module, the input end of the amplifying circuit, the input end of the attenuating circuit, and the output end of the counting circuit. The output ends of the amplifying circuit and the attenuating circuit are simultaneously connected to the processing module;

[0054] The switching circuit is used to switch channels; the amplifying circuit is used to amplify the signal; the attenuating circuit is used to attenuate the signal;

[0055] The switching circuit includes a first switching element and a second switching element. The control ends of the first switching element and the second switching element are simultaneously connected to the output end of the counting circuit; the receiving module transmits the signal to the amplifying circuit or the attenuating circuit through the first switching component or the second switching component.

[0056] In this embodiment, both the first switching element and the second switching element are field effect transistors.

[0057] In some embodiments, the switching circuit further includes a processor, and the judgment module controls the switching element through the processor; at this time, multiple attenuating circuits with different attenuation coefficients and amplifying circuits with different amplification coefficients can be added, and the processor controls the activation of multiple amplifying circuits and attenuating circuits to achieve more accurate data processing.

[0058] Furthermore, the channel module includes voltage followers U7, U9, operational amplifier U8, field effect transistors Q1, Q2, and resistors R7, R8, R9, R10, R11, R12, R13;

[0059] Among them, the switching circuit includes voltage follower U7, field effect transistors Q1, Q2; the amplifying circuit includes operational amplifier U8, resistors R7, R8, R9; the attenuating circuit includes voltage follower U9, resistors R10, R11, R12, R13;

[0060] Specifically, the positive input terminal of the voltage follower U7 is set as the IN input terminal. The pin 2 of the voltage follower U7 is connected to the positive power supply, and the pin 5 is grounded. The negative input terminal of the voltage follower U7, the output terminal of the voltage follower U7, the source electrode of the field effect transistor Q1, and the drain electrode of the field effect transistor Q2 are connected. The gate electrode of the field effect transistor Q1 and the gate electrode of the field effect transistor Q2 are connected, and the CON input terminal is set here. The drain electrode of the field effect transistor Q1, one end of the resistor R8, and the positive input terminal of the operational amplifier U8 are connected. The pin 5 of the operational amplifier U8 is grounded. The pin 4 of the operational amplifier U8 and the pin 2 of the voltage follower U9 are connected and connected to the positive power supply. The negative input terminal of the operational amplifier U8, one end of the resistor R7, and one end of the resistor R9 are connected. The other end of the resistor R7 and the other end of the resistor R8 are connected and grounded. The other end of the resistor R9, the output terminal of the operational amplifier U9, the output terminal of the voltage follower U9, and the negative input terminal of the voltage follower U9 are connected, and the OUT output terminal is set here. The pin 5 of the voltage follower U9 is grounded. The positive input terminal of the voltage follower U9 is connected to one end of the resistor R11. The other end of the resistor R11, one end of the resistor R10, and one end of the resistor R13 are connected. The other end of the resistor R13 is grounded. The other end of the resistor R10, one end of the resistor R12, and the source electrode of the field effect transistor Q2 are connected. The other end of the resistor R12 is grounded.

[0061] It should be noted that the IN input terminal is connected to the output terminal of the receiving module, the CON input terminal is connected to the UT_OUT output terminal in the judgment module, and the OUT output terminal is connected to the input terminal of the processing module.

[0062] In this embodiment, the field effect transistor Q1 is a PMOS transistor; the field effect transistor Q2 is an NMOS transistor;

[0063] In this embodiment, the working process of the transmission control module is as follows:

[0064] The receiving module transmits signals to the channel module and the judgment module respectively;

[0065] The counting module in the judgment module starts to monitor whether there is a voltage exceeding the range. When the number of times of the voltage exceeding the range is first detected, the counting circuit sends a start signal to the time limit circuit, and the time limit circuit starts timing;

[0066] When the count value has reached the maximum count value within the time specified by the time limit circuit by the counting circuit, it is determined that the signal intensity transmitted by the receiving module is relatively large. At this time, the counting circuit outputs a control signal to the channel module, and the switch circuit switches to the attenuation circuit; at the same time, the counting circuit and the time limit circuit are reset;

[0067] When the timing is completed and the count value has not reached the maximum count value, it is determined that the voltage exceeding the voltage range is an interference signal, and the channel is not switched at this time; at the same time, the counting circuit and the time limit circuit are reset;

[0068] If the counting module does not detect a voltage exceeding the range, the channel module turns on the amplifying circuit.

[0069] It should be noted that the models of the counters in this embodiment are all 74LS161.

[0070] In this embodiment, the model of the OR gate is 74HC1G32GW, and the model of the NOT gate is SN74LVC1G14DBVR.

[0071] In this embodiment, a power supply module is further included. The power supply module is respectively connected to the transmission control module and the processing module to supply power to each module.

[0072] It should be noted that the electronic devices in this embodiment can all be purchased in domestic and foreign markets.

[0073] So far, the embodiments of the present utility model have been described in detail. In order to avoid obscuring the concept of the present utility model, some details well known in the art are not described. Those skilled in the art can clearly understand how to implement the technical solutions of the present utility model based on the above description. The scope of the present utility model is defined by the appended claims.

Claims

1. A modular radio frequency component, comprising a receiving module, a processing module, and an output module, wherein the processing module is respectively connected to the receiving module and the output module; characterized in that: It further includes a transmission control module, and the receiving module is connected to the processing module through the transmission control module; the transmission control module includes a channel module and a judgment module, and the channel module is connected to the judgment module; The judgment module is used to judge the signal strength at the transmission end, and the judged result signal is transmitted into the channel module; The judgment module includes a time limit circuit and a counting circuit, and the time limit circuit is connected to the counting circuit; the counting circuit is respectively connected to the time limit circuit, the receiving module, and the channel module; The time limit circuit is used to set a time; the counting circuit counts the number of voltage times exceeding the range within the time set by the time limit circuit; The channel module transmits the signal at the transmission end through a suitable channel according to the result signal of the judgment module; The channel module includes a switch circuit, an amplification circuit, and an attenuation circuit. The switch circuit is respectively connected to the receiving module, the input end of the amplification circuit, the input end of the attenuation circuit, and the output end of the counting circuit. The output end of the amplification circuit and the output end of the attenuation circuit are simultaneously connected to the processing module; The switch circuit is used to switch channels; the amplification circuit is used to amplify the signal; The attenuation circuit is used to attenuate the signal.

2. The modular radio frequency component according to claim 1, characterized in that, The time limit circuit includes a signal generator, a counter, a self-locking circuit, and a NOT gate. The signal generator, the counter, and the start circuit are connected to each other in pairs. The counter is connected to the counting circuit through the NOT gate; The self-locking circuit transmits a control signal to the signal generator and the counter, and the signal generator and the counter start to work and start timing; when the timing ends, the counter outputs a control signal to the signal generator, the counter, and the self-locking circuit, and the signal generator and the counter are reset, and the self-locking circuit releases the self-locking state.

3. The modular radio frequency component according to claim 2, characterized in that, The self-locking circuit includes an OR gate, a first triode, a second triode, and multiple resistors. One input end of the OR gate is connected to the output end of the counting circuit, the output end of the OR gate is connected to the gate of the first triode, the other input end of the OR gate is connected to the emitter of the first triode, and the emitter of the first triode is connected to the emitter of the second triode through a resistor and grounded; the collector of the first triode is connected to the collector of the second triode and is connected to the power supply through a resistor; the base of the second triode is connected to the counter.

4. The modular radio frequency component according to claim 2, wherein The signal generator is a timer, and the model of the timer is NE555DR.

5. The modular radio frequency component according to claim 1, wherein The counting circuit includes a window comparator, a counter, and a potentiometer. The reference voltage terminal of the window comparator is connected to the potentiometer, the input end of the window comparator is connected to the receiving module, the output end of the window comparator is connected to the input end of the counter, and the output end of the counter is connected to the switch circuit.

6. The modular radio frequency component according to claim 5, characterized in that The counting circuit further includes a NOT gate, and the output end of the counter is connected to the reset end of the counter through the NOT gate.

7. The modular radio frequency component according to any one of claims 2 and 5, characterized in that The model of the counter is 74LS161.

8. The modular radio frequency component according to claim 1, wherein The switch circuit includes a first switching element and a second switching element. The control ends of the first switching element and the second switching element are simultaneously connected to the output end of the counting circuit; the receiving module transmits signals to the amplifying circuit or the attenuating circuit through a first switching component or a second switching component.

9. The modular radio frequency component according to claim 1, characterized in that It further includes a power supply module, and the power supply module is respectively connected to the transmission control module and the processing module.

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