User terminal signal detector and user terminal signal detection system

Abstract

The utility model discloses a user terminal signal detector and a user terminal signal detection system, and relates to the technical field of antenna signal detection. The user terminal signal detector comprises an RF (Radio Frequency) detection module, a forwarding module and an RF amplification module which are connected in sequence, the RF detection module is used for converting a terminal signal of a user into an analog electric signal and sending the analog electric signal to the forwarding module; the forwarding module is used for carrying out optimization processing on the analog electric signal and sending the optimized analog electric signal to the RF amplification circuit; and the RF amplification circuit is used for amplifying the optimized analog electric signal. The utility model also discloses a user terminal signal detection system. By adopting the user terminal signal detector and the user terminal signal detection system, the problem that the user terminal signal is difficult to detect in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to antenna signal detection technical field especially relates to a user terminal signal detector and user terminal signal detection system. BACKGROUND

[0002] Star chain system is composed of thousands of low-orbit satellites, ground stations distributed globally and user terminals, the ground station is responsible for satellite data communication, telemetry control, and the user accesses the Internet through the satellite link through the ground station. The user terminal is composed of a Doppler antenna and a router.

[0003] The conventional satellite television signal user terminal only receives but does not send, and its position can be well hidden, so it is not easy to find, and the star chain user terminal has the demand of communication with the satellite, when the satellite passes, the Doppler antenna signal of the user terminal needs to track the satellite direction in real time, and constantly scans, so the position of signal emission can be determined by detecting this signal, that is, the position of the user terminal can be determined.

[0004] And the difficulty of detecting the Doppler antenna signal emitted by the user terminal lies in: because the user terminal needs to track the satellite direction in real time and constantly scans, the signal strength may change with time and position, and the star chain system uses high-frequency signals, and the detection and amplification of such high-frequency signals are more difficult.

[0005] Therefore, it is urgent to design a user terminal signal detector and a user terminal signal detection system to solve the above problems. UTILITY MODEL CONTENT

[0006] The technical problem to be solved by the utility model lies in providing a user terminal signal detector and a user terminal signal detection system, which can solve the problem that the user terminal signal is difficult to detect in the prior art.

[0007] In order to solve the above technical problems, the utility model provides a user terminal signal detector, which comprises RF detection module, retransmission module and RF amplification module connected in sequence; the RF detection module is used for converting the user terminal signal into an analog electric signal, and sending the analog electric signal to the retransmission module; the retransmission module is used for optimizing the analog electric signal, and sending the optimized analog electric signal to the RF amplification circuit; the RF amplification circuit is used for amplifying the optimized analog electric signal.

[0008] As an improvement of the above-mentioned scheme, the RF detection module comprises a radio frequency amplification controllable power supply circuit, a power supply circuit and a wireless communication power supply processing circuit; the radio frequency amplification controllable power supply circuit is used for acquiring the terminal signal and performing amplification and filtering processing on the terminal signal; the power supply circuit is used for controlling the switching of the power supply and detecting the power supply state; the wireless communication power supply processing circuit is used for converting and stabilizing the voltage of the power supply.

[0009] As an improvement of the above-mentioned scheme, the radio frequency amplification controllable power supply circuit comprises a power detection circuit and a first control circuit; the power detection circuit comprises a first power detector and a fifth connector connected with each other; the fifth connector is used for receiving the terminal signal and sending it to the first power detector, and the first power detector is used for amplifying the terminal signal.

[0010] As an improvement of the above-mentioned scheme, the first control circuit comprises a sixth controller, a seventh pair of board connector and a first connector; the seventh pair of board connector and the first connector are connected with the sixth controller to control the communication of the radio frequency amplification controllable power supply circuit.

[0011] As an improvement of the above-mentioned scheme, the power supply circuit comprises a power supply control circuit and a voltage division filtering circuit, and the voltage division filtering circuit is used for detecting the power supply voltage; the power supply control circuit comprises a first terminal, a second MOS tube and a third transistor connected in sequence; the drain of the second MOS tube is connected with the first terminal and the power supply, the source of the second MOS tube is connected with the power supply and the gate, respectively, and the gate of the second MOS tube is connected with the emitter of the third transistor; the base of the third transistor is connected with the power supply, and the collector of the third transistor is connected with the base.

[0012] As an improvement of the above-mentioned scheme, the wireless communication power supply processing circuit comprises a conversion circuit and a voltage stabilizing circuit; the conversion circuit comprises a third converter and a third terminal connected with each other, the third terminal is used for controlling the on-off of the power supply, and the third converter is used for converting the voltage of the power supply; the voltage stabilizing circuit comprises a fourth voltage stabilizer used for stabilizing the voltage of the power supply.

[0013] As an improvement of the above-mentioned scheme, the retransmission module comprises a wireless communication circuit and a second control circuit, and the second control circuit is used for controlling the communication of the retransmission module; the wireless communication circuit comprises a transceiver chip, a radio frequency switch chip and a first radio frequency coaxial connector connected in sequence to receive the terminal signal sent by the RF detection module and send it to the RF amplification module after optimization.

[0014] As the improvement of the above scheme, the RF amplification module comprises a radio frequency signal purification amplification circuit and at least one re-amplification circuit connected with each other, so as to amplify the terminal signal step by step; the radio frequency signal purification amplification circuit comprises a twenty-seventh amplifier, a twenty-fifth filter and a second radio frequency coaxial connector connected in sequence, so as to amplify the terminal signal for the first time.

[0015] As the improvement of the above scheme, each re-amplification circuit comprises a twenty-sixth amplifier and a twenty-eighth filter connected with each other, so as to amplify the terminal signal for the second time.

[0016] The utility model discloses a user terminal signal detection system, including directional antenna, first signal filter, low noise amplifier, second signal filter, high gain amplifier, ground station and above-mentioned user terminal signal detector, directional antenna, first signal filter, low noise amplifier, second signal filter, high gain amplifier and user terminal signal detector connect in proper order, and terminal signal passes through the processing of directional antenna, first signal filter, low noise amplifier, second signal filter, high gain amplifier and user terminal signal detector in proper order finally sends to ground station.

[0017] The utility model has the advantages that:

[0018] The utility model discloses a user terminal signal detector, which comprises an RF detection module, a forwarding module and an RF amplification module connected in sequence. The terminal signal is optimized and processed by filtering and amplification through the RF detection module, the forwarding module and the RF amplification module, thereby solving the problem that the user terminal signal is difficult to detect in the prior art.

[0019] Further, the utility model discloses a user terminal signal detection system, which processes the terminal signal through the directional antenna, the first signal filter, the low noise amplifier, the second signal filter, the high gain amplifier and the user terminal signal detector, and finally sends the processed terminal signal to the ground station through wireless data transmission, thereby realizing remote monitoring and data collection. The user terminal signal detection system integrates multiple functions such as signal reception, filtering, amplification and detection, can adapt to different signal environments and requirements, has good flexibility and expandability. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 1 is a structural schematic diagram of the utility model user terminal signal detector;

[0021] Figure 2 Fig. 4 is a circuit diagram of the radio frequency amplification controllable power supply circuit in the utility model user terminal signal detector;

[0022] Figure 3 Fig. 5 is a circuit diagram of the power supply circuit in the utility model user terminal signal detector;

[0023] Figure 4 This is a circuit diagram of the wireless communication power supply processing circuit in the user terminal signal detector of this utility model;

[0024] Figure 5 This is a circuit diagram of the forwarding module in the user terminal signal detector of this utility model;

[0025] Figure 6 This is a circuit diagram of the RF amplification module in the user terminal signal detector of this utility model;

[0026] Figure 7 This is a circuit diagram of the radio frequency signal purification and amplification circuit in the user terminal signal detector of this utility model;

[0027] Figure 8 This is a circuit diagram of the re-amplification circuit in the user terminal signal detector of this utility model;

[0028] Figure 9 This is a schematic diagram of the user terminal signal detection system of this utility model. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0030] like Figure 1 As shown, the user terminal signal detector of this utility model includes an RF detection module 1, a forwarding module 2, and an RF amplification module 3 connected in sequence;

[0031] The RF detection module 1 is used to convert the user's terminal signal into an analog electrical signal and send the analog electrical signal to the forwarding module 2;

[0032] The forwarding module 2 is used to optimize the analog electrical signal and send the optimized analog electrical signal to the RF amplifier circuit 3;

[0033] The RF amplifier circuit 3 is used to amplify the optimized analog electrical signal.

[0034] This utility model user terminal signal detector optimizes the terminal signal by performing filtering, amplification, and other processing through the RF detection module 1, the forwarding module 2, and the RF amplification module 3, thereby solving the problem of difficult detection of user terminal signals in the prior art.

[0035] Combination Figure 1Figure 8. The RF detection module 1, the forwarding module 2, and the RF amplification module 3 are described in detail below:

[0036] I. RF Detection Module 1

[0037] like Figures 2 to 4 As shown, the RF detection module 1 includes a radio frequency amplification controllable power supply circuit 11, a power supply circuit 12, and a wireless communication power processing circuit 13;

[0038] The RF detection module 1 includes a radio frequency amplification controllable power supply circuit 11, a power supply circuit 12, and a wireless communication power processing circuit 13.

[0039] The radio frequency amplification controllable power supply circuit 11 is used to acquire the terminal signal and amplify and filter the terminal signal;

[0040] The power supply circuit 12 is used to control the switching of the power supply and to detect the power supply status.

[0041] The wireless communication power processing circuit 13 is used to convert and stabilize the voltage of the power supply to provide a stable and reliable power supply.

[0042] 1. Controllable power supply circuit for radio frequency amplification 11:

[0043] like Figure 2 As shown, the radio frequency amplification controllable power supply circuit 11 includes a power detection circuit 111 and a first control circuit 112;

[0044] The power detection circuit 111 includes a first power detector U1 and a fifth connector U5 that are connected to each other;

[0045] The fifth connector U5 is used to receive the terminal signal and send it to the first power detector U1, and the first power detector U1 is used to amplify the terminal signal.

[0046] Specifically: the power detection circuit 111 includes a first power detector U1, a sixth capacitor C6, a fifth capacitor C5, a third capacitor C3, an eleventh resistor R11, a fourth capacitor C4, a first capacitor C1, a seventh capacitor C7, a third resistor R3, an eighth capacitor C8, a ninth capacitor C9, a second resistor R2, and a fifth connector U5.

[0047] The first power detector U1 has a power supply pin VCC, a detector output pin OUT, a bandwidth reduction pin FLTR, a chip enable pin EN, and an RF input pin RF IN;

[0048] The power pin VCC is connected with 3.3V power supply through one end of the seventh capacitor C7, one end of the first capacitor C1, one end of the fourth capacitor C4, the eleventh resistor R11, one end of the third capacitor C3, one end of the fifth capacitor C5, one end of the sixth capacitor C6 in turn;

[0049] The other end of the seventh capacitor C7 is grounded, the other end of the first capacitor C1 is grounded, the other end of the fourth capacitor C4 is grounded, the other end of the third capacitor C3 is grounded, the other end of the fifth capacitor C5 is grounded, and the other end of the sixth capacitor C6 is grounded;

[0050] One end of the eighth capacitor C8 is connected with the bandwidth reduction pin FLTR, and the other end is connected with the detector output pin OUT and grounded through the third resistor R3;

[0051] The chip enable pin EN is connected with one end of the second resistor R2 and grounded through the ninth capacitor C9;

[0052] The RF input pin RF IN is connected with the fifth connector U5.

[0053] Preferably, the model of the first power detector U1 is LTC5596IDC#TRMPBF, and the model of the fifth connector U5 is SMA-J, but not limited thereto.

[0054] The power detection circuit 111 can effectively suppress noise, amplify weak signals, and has the functions of power filtering and signal filtering, ensuring that the circuit can work stably in various environments.

[0055] The first control circuit 112 includes a sixth controller U6, a seventh pair of board connector U7, and a first connector H1.

[0056] The seventh pair of board connector U7 and the first connector H1 are connected with the sixth controller U6 to control the communication of the radio frequency amplification controllable power supply circuit 11.

[0057] Specifically, the first control circuit 112 includes a sixth controller U6, a seventh pair of board connector U7, a first connector H1, a fourth resistor R4, a tenth capacitor C10, an eleventh capacitor C11, a first crystal oscillator X1, a twelfth capacitor C12, a sixteenth capacitor C16, a fifth resistor R5, a fifteenth capacitor C15, a thirteenth capacitor C13, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a twenty-seventh resistor R27, a fourteenth capacitor C14, a seventeenth capacitor C17, a first light emitting diode LED1, and a twenty-eighth resistor R28.

[0058] The sixth controller U6 is provided with a start mode selection pin BOOT0, a crystal oscillator input pin PF0 / OSC_IN, a crystal oscillator output pin PF1 / OSC_OUT, a reset pin NRST, an analog power input pin VDDA, a sixth general-purpose pin PA6, a digital power input pin VDD, a ninth general-purpose pin PA9, a tenth general-purpose pin PA10, a thirteenth general-purpose pin PA13, and a fourteenth general-purpose pin PA14;

[0059] The start mode selection pin BOOT0 is grounded through the fourth resistor R4;

[0060] One end of the first crystal oscillator X1 is connected with the crystal oscillator input pin PF0 / OSC_IN and grounded through the tenth capacitor C10, and the other end of the first crystal oscillator X1 is connected with the crystal oscillator output pin PF1 / OSC_OUT and grounded through the eleventh capacitor C11;

[0061] The reset pin NRST is grounded through the twelfth capacitor C12;

[0062] The analog power input pin VDDA is connected with a 3.3V power source through the one end of the thirteenth capacitor C13, the one end of the fifteenth capacitor C15, the fifth resistor R5, and the one end of the sixteenth capacitor C16 in sequence;

[0063] The other end of the thirteenth capacitor C13 is grounded, the other end of the fifteenth capacitor C15 is grounded, and the other end of the sixteenth capacitor C16 is grounded;

[0064] The sixth general-purpose pin PA6 is connected with a 3.3V power source through the first light-emitting diode LED1 and the twenty-eighth resistor R28 in sequence;

[0065] The digital power input pin VDD is connected with a 3.3V power source through the one end of the fourteenth capacitor C14, the one end of the seventeenth capacitor C17, and the twenty-seventh resistor R27 in sequence;

[0066] The ninth general-purpose pin PA9 is connected with the seventh pair of board connectors U7 through the ninth resistor R9;

[0067] The tenth general-purpose pin PA10 is connected with the seventh pair of board connectors U7 through the eighth resistor R8;

[0068] The seventh pair of board connectors U7 is connected with a 12V power source;

[0069] The thirteenth general-purpose pin PA13 is connected with the first connector H1 through the seventh resistor R7;

[0070] The fourteenth general-purpose pin PA14 is connected to the first connector H1 through the sixth resistor R6;

[0071] The first connector H1 is connected to a 3.3V power supply.

[0072] Preferably, the sixth controller U6 is model AT32F421 F8P7, and the seventh board connector U7 is model ZX-XH2.54-4PZZ;

[0073] The first light-emitting diode LED1 has the model number 19-213 / Y2C-CQ2R2L / 3T(CY), and the first connector H1 has the model number HC-PZ254-11.5L-1x4PZ, but these are not limitations.

[0074] The first control circuit 112 provides high stability through the first crystal oscillator X1 and the capacitor, and has good anti-electromagnetic interference capability.

[0075] 2. Power supply circuit 12:

[0076] like Figure 3 As shown, the power supply circuit 12 includes a power control circuit 121 and a voltage divider and filter circuit 122, the voltage divider and filter circuit 122 being used to detect the power supply voltage;

[0077] The power control circuit 121 includes a first terminal P1, a second MOSFET Q2, and a third transistor Q3 connected in sequence.

[0078] The drain of the second MOS transistor Q2 is connected to the first terminal P1 and to the power supply. The source of the second MOS transistor Q2 is connected to the power supply and the gate, respectively. The gate of the second MOS transistor Q2 is connected to the emitter of the third transistor Q3.

[0079] The base of the third transistor Q3 is connected to the power supply, and the collector of the third transistor Q3 is connected to the base.

[0080] Preferably, there are two power supply circuits 12, and the two power supply circuits 12 have the same structure. The two power supply circuits 12 are respectively connected to a 12V power supply and a 5V power supply. This specification only uses one of them as a specific example for illustration:

[0081] Specifically: the power control circuit 121 includes a first terminal P1, a second MOSFET Q2, a twenty-first resistor R21, a thirty-fourth capacitor C34, a thirty-fifth capacitor C35, a thirty-sixth capacitor C36, a third transistor Q3, a twenty-fifth resistor R25, and a twenty-fourth resistor R24.

[0082] The voltage division filter circuit 122 comprises a sixteenth resistor R16, a seventeenth resistor R17 and a twenty-ninth capacitor C29;

[0083] The drain of the second MOS transistor Q2 is connected with the first terminal P1 and sequentially passes through one end of the thirty-fourth capacitor C34, one end of the thirty-fifth capacitor C35, one end of the thirty-sixth capacitor C36 and is connected with the power supply;

[0084] The other end of the thirty-fourth capacitor C34 is grounded, the other end of the thirty-fifth capacitor C35 is grounded, and the other end of the thirty-sixth capacitor C36 is grounded;

[0085] The source of the second MOS transistor Q2 is connected with the power supply;

[0086] The gate of the second MOS transistor Q2 is connected with the emitter of the third transistor Q3;

[0087] The source and the gate of the second MOS transistor Q2 are connected through the twenty-first resistor R21;

[0088] The base of the third transistor Q3 is connected with the power supply through the twenty-fifth resistor R25;

[0089] The collector of the third transistor Q3 is grounded and is connected with the base of the third transistor Q3 through the twenty-fourth resistor Q24;

[0090] One end of the sixteenth resistor R16 is connected with the power supply, and the other end is connected with one end of the seventeenth resistor R17 and one end of the twenty-ninth capacitor C29;

[0091] The other end of the seventeenth resistor R17 is grounded, and the other end of the twenty-ninth capacitor C29 is grounded.

[0092] Preferably, the model of the first terminal P1 is WJ500V-5.08-2P, the model of the second MOS transistor Q2 is AO3401A, and the model of the third transistor Q3 is MMBT3904, but not limited thereto;

[0093] The power supply circuit 12 controls the current through the second MOS transistor Q2 and the third transistor Q3, which can effectively isolate the control signal and the load current, improve the safety of the system, improve the stability of the power supply, and reduce the influence of voltage fluctuation on the system.

[0094] 3. The wireless communication power supply processing circuit 13:

[0095] As shown in Figure 4 The wireless communication power supply processing circuit 13 comprises a conversion circuit 131 and a voltage stabilizing circuit 132;

[0096] The conversion circuit 131 comprises a third converter U3 and a third terminal P3 connected to each other, the third terminal P3 being used for controlling the on-off of the power supply, and the third converter U3 being used for converting the voltage of the power supply.

[0097] The voltage stabilization circuit 132 comprises a fourth voltage stabilizer U4 used for stabilizing the voltage of the power supply.

[0098] Specifically, the conversion circuit 131 comprises a third converter U3, a third terminal P3, a third diode D3, a fourteenth resistor R14, a thirteenth resistor R13, a twenty-seventh capacitor C17, a twenty-fifth capacitor C25, a twenty-fourth capacitor C24, a twenty-sixth capacitor C26, a first diode D1, a second diode D2, an eighteenth capacitor C18, a first inductor L1, a tenth resistor R10, a twelfth resistor R12, a nineteenth capacitor C19, a twentieth capacitor C20, a twenty-first capacitor C21, a twenty-second capacitor C22, a twenty-third capacitor C23, and a fifteenth resistor R15.

[0099] The voltage stabilization circuit 132 comprises a fourth voltage stabilizer U4 and a twenty-eighth capacitor C28.

[0100] The third converter I3 is provided with a boost capacitor pin BOOT, a feedback voltage pin VSENSE, a source pin PH, and an input power supply voltage pin VIN.

[0101] The source pin PH is connected to one end of the first inductor L1 through the anode of the second diode D2 and one end of the eighteenth capacitor C18 in sequence.

[0102] The cathode of the second diode D2 is grounded, and the other end of the eighteenth capacitor C18 is connected to the boost capacitor pin BOOT.

[0103] The other end of the first inductor L1 is connected to a 5V power supply through the other end of the tenth resistor R10, one end of the nineteenth capacitor C19, one end of the twentieth capacitor C20, one end of the twenty-first capacitor C21, one end of the twenty-second capacitor C22, one end of the twenty-third capacitor C23, and the fifteenth resistor R15 in sequence.

[0104] The other end of the tenth resistor R10 is connected to the feedback voltage pin VSENSE and grounded through the twelfth resistor R12.

[0105] The other end of the nineteenth capacitor C19 is connected to the other end of the twentieth capacitor C20 and grounded.

[0106] The other end of the twenty-first capacitor C21 is connected with the other end of the twenty-second capacitor C22 and the other end of the twenty-third capacitor C23 and grounded.

[0107] The input power supply voltage pin VIN is connected with one end of the thirteenth resistor R13 through the anode of the first diode D1, one end of the twenty-sixth capacitor C26, one end of the twenty-fourth capacitor C24, one end of the twenty-fifth capacitor C25, one end of the twenty-seventh capacitor C27 in turn.

[0108] The cathode of the first diode D1 is grounded, the other end of the twenty-sixth capacitor C26 is grounded, the other end of the twenty-fourth capacitor C24 is grounded, the other end of the twenty-fifth capacitor C25 is grounded, and the other end of the twenty-seventh capacitor C27 is grounded.

[0109] The other end of the thirteenth resistor R13 is connected with the anode of the third diode D3 and connected with the 12V power supply through the fourteenth resistor R14.

[0110] The cathode of the third diode D3 is connected with the 12V power supply and the third terminal P3.

[0111] The fourth voltage stabilizer U4 is provided with two voltage output pins VOUT and a voltage input terminal VIN.

[0112] The two voltage output pins VOUT are connected with the 3.3V power supply and grounded through the twenty-eighth capacitor C28.

[0113] The voltage input terminal VIN is connected with the 5V power supply.

[0114] Preferably, the model of the third converter U3 is TPS5430DDAR, the model of the third terminal P3 is WJ500V-5.08-2P, and the model of the fourth voltage stabilizer U4 is AMS1117-3.3, but not limited thereto.

[0115] The wireless communication power supply processing circuit 13 provides higher voltage conversion efficiency through the third converter U3, and the fourth voltage stabilizer U4 provides additional voltage stabilization to ensure the stability of voltage output.

[0116] II. Forwarding module 2

[0117] As shown in Figure 5 The forwarding module 2 includes a wireless communication circuit 21 and a second control circuit 22, and the second control circuit 22 is used to control the communication of the forwarding module 2.

[0118] The wireless communication circuit 21 comprises a transceiver chip U20, a radio frequency switch chip U22 and a first radio frequency coaxial connector RF1 connected in sequence to receive and optimize the terminal signal sent by the RF detection module 1 and then send it to the RF amplification module 3.

[0119] Preferably, the specific structure of the second control circuit 22 is consistent with that of the first control circuit.

[0120] Specifically, the wireless communication circuit 21 comprises a transceiver chip U20, a radio frequency switch chip U22, a sixty-eighth capacitor C68, a third crystal oscillator X3, a seventy-fourth capacitor C74, a twentieth inductor L20, a seventy-sixth capacitor C76, a seventy-seventh capacitor C77, a sixty-sixth capacitor C66, a sixty-seventh capacitor C67, a sixteenth inductor L16, a sixty-ninth capacitor C69, a seventeenth inductor L17, a twenty-first inductor U21, a seventy-first capacitor C71, a seventy-first capacitor C70, a seventy-third capacitor C73, a nineteenth inductor L19, a seventy-eighth capacitor C78, a fifty-second resistor R52, a fifty-fourth resistor R54, a seventy-second capacitor C72, a seventy-fifth capacitor C75, an eighteenth inductor L18 and a first radio frequency coaxial connector RF1.

[0121] The twentieth transceiver chip U20 is provided with an input voltage pin VDD_IN, an A-end crystal oscillator connection pin XTA, a B-end crystal oscillator connection pin XTB, an adjusted output voltage pin VREG, a converter switch output pin DCC_SW, an integrated circuit power supply pin VBAT, an interface power supply pin VBAT_IO, a power amplifier power supply pin VR_PA, a radio frequency transmission output pin RFO, an N-end radio frequency reception differential input pin RF I_N and a P-end radio frequency reception differential input pin RF I_P.

[0122] The twenty-second radio frequency switch chip U22 is provided with a first radio frequency port pin RF1, a second radio frequency port pin RF2, a double control mode pin CTRL#orVDD, a radio frequency common port pin RFC and a switch control input pin CTRL.

[0123] The input voltage pin VDD_IN is connected with a 3.3V power supply and grounded through the sixty-eighth capacitor C68.

[0124] The A-end crystal oscillator connection pin XTA is connected with the B-end crystal oscillator connection pin XTB through the third crystal oscillator X3.

[0125] The adjusted output voltage pin VREG is connected with one end of the twentieth inductor L20 and grounded through the seventy-fourth capacitor C74.

[0126] Another end of the twentieth inductor L20 is connected with the converter switch output pin DCC_SW;

[0127] The integrated circuit power supply pin VBAT is connected with the interface power supply pin VBAT_IO and in turn connected with 3.3V power supply through one end of the seventy-seventh capacitor C77 and one end of the seventy-sixth capacitor C76;

[0128] Another end of the seventy-seventh capacitor C77 is grounded, and another end of the seventy-sixth capacitor C76 is grounded;

[0129] The power amplifier power supply pin VR_PA is grounded through the sixty-sixth capacitor C66;

[0130] The radio frequency transmission output pin RFO is in turn connected with the first radio frequency port pin RF1 through one end of the sixteenth inductor L16, the seventeenth inductor L17, the twenty-first inductor U21, the seventy-first capacitor C21 and one end of the seventieth capacitor C70;

[0131] Another end of the sixteenth inductor L16 is connected with the power amplifier power supply pin VR_PA and grounded through the sixty-seventh capacitor C67;

[0132] The sixty-ninth capacitor is connected in parallel with the seventeenth inductor;

[0133] Another end of the seventieth capacitor C70 is grounded;

[0134] The N-end radio frequency receiving differential input pin RF I_N is in turn connected with the second radio frequency port pin RF2 through one end of the nineteenth inductor L19 and the seventy-third capacitor C73;

[0135] Another end of the nineteenth inductor L19 is connected with the P-end radio frequency receiving differential input pin RF I_P and grounded through the seventy-eighth capacitor C78;

[0136] The double control mode pin CTRL#orVDD is connected with 3.3V power supply through the fifty-second resistor R52;

[0137] The radio frequency common port pin RFC is in turn connected with the first radio frequency coaxial connector RF1 through the seventy-second capacitor C72, one end of the seventy-fifth capacitor C75 and the eighteenth inductor L18;

[0138] Another end of the seventy-fifth capacitor C75 is grounded;

[0139] The switch control input pin CTRL is connected with the fifty-fourth resistor R54.

[0140] The wireless communication circuit 21 realizes long-distance wireless communication, and realizes power filtering and stabilization through multiple capacitors and inductors;

[0141] The forwarding module 2 based on wireless communication and satellite communication can ensure the stability of the system by using the power management and filtering circuit of the wireless communication circuit 21 and the second control circuit 22.

[0142] III. RF amplification module 3

[0143] As shown in Figures 6 to 8 , the RF amplification module 3 includes at least one RF signal purification amplification circuit 31 and a re-amplification circuit 32 connected to each other to perform step-by-step amplification on the terminal signal.

[0144] The RF signal purification amplification circuit 31 includes a twenty-seventh amplifier U27, a twenty-fifth filter U25, and a second RF coaxial connector RF2 connected in sequence to perform primary amplification on the terminal signal.

[0145] Specifically, the RF signal purification amplification circuit 31 includes a twenty-seventh amplifier U27, a second RF coaxial connector RF2, a twenty-fifth filter U25, an eighty-seventh capacitor C87, an eighty-eighth capacitor C88, a one-hundredth capacitor C100, a sixty-third resistor R63, a ninety-third capacitor C93, a ninety-first capacitor C91, a ninety-second capacitor C92, a ninety-fourth capacitor C94, a sixty-fourth resistor R64, a ninety-ninth capacitor C99, a ninety-fifth capacitor C95, an eighty-ninth capacitor C89, and a ninetieth capacitor C90.

[0146] The twenty-seventh amplifier U27 is provided with a radio frequency input pin RFIN, a first gate voltage pin VGG1, a second gate voltage pin VGG2, a first drain voltage pin VDD1, a second drain voltage pin VDD2, and a radio frequency output pin RFOUT.

[0147] The radio frequency input pin RFIN is connected to the second RF coaxial connector RF2 through the eighty-eighth capacitor C88, the twenty-fifth filter, and the eighty-seventh capacitor C87 in sequence.

[0148] The first gate voltage pin VGG1 is grounded through the eighty-ninth capacitor C89.

[0149] The second gate voltage pin VGG2 is grounded through the ninetieth capacitor C90.

[0150] The first drain voltage pin VDD1 is connected to a 3.3V power supply through one end of the ninety-first capacitor C91, one end of the ninety-third capacitor C93, and the sixty-third resistor R63 in sequence, and is grounded through the one-hundredth capacitor C100.

[0151] The other end of the ninety-first capacitor C91 is grounded, and the other end of the ninety-third capacitor C93 is grounded.

[0152] The second drain voltage pin VDD2 is connected to a 3.3V power source through one end of the ninety-second capacitor C92, one end of the ninety-fourth capacitor C94, and the sixty-fourth resistor R64 in sequence and grounded through the ninety-ninth capacitor C99.

[0153] The other end of the ninety-second capacitor C92 is grounded, and the other end of the ninety-fourth capacitor C94 is grounded.

[0154] The radio frequency output pin RFOUT is connected to the re-amplification circuit 32 through the ninety-fifth capacitor C95.

[0155] Preferably, the twenty-seventh amplifier U27 is of the model HMC903LP3E, the second radio frequency coaxial connector RF2 is of the model BWSMA-KWE-Z001, and the twenty-fifth filter U25 is of the model BPF14.25G, but the present application is not limited thereto.

[0156] The radio frequency signal purification amplification circuit 31 reduces the introduction of noise while amplifying the signal through the twenty-seventh amplifier U27, and provides the ability to switch between different antennas or modes through the twenty-fifth filter U25, increasing the flexibility of the system.

[0157] Preferably, three re-amplification circuits 32 are provided, and the three re-amplification circuits 32 are connected in sequence, and the present specification takes the first re-amplification circuit 32 as an example.

[0158] Each re-amplification circuit 32 includes a twenty-sixth amplifier U26 and a twenty-eighth filter U28 connected to each other to re-amplify the terminal signal.

[0159] Specifically, the re-amplification circuit 32 includes a twenty-sixth amplifier U26, a twenty-eighth filter U28, a one-hundred-and-first capacitor C101, a one-hundred-and-second capacitor C102, a sixty-sixth resistor R66, a one-hundred-and-third capacitor C103, a ninety-sixth capacitor C96, a ninety-seventh capacitor C97, a sixty-fifth resistor R65, a ninety-eighth capacitor C98, and a one-hundred-and-fourth capacitor C104.

[0160] The twenty-sixth amplifier U26 is provided with a first amplifier pin VPD, a second amplifier pin VCC, an amplifier input pin RF IN, and an amplifier output pin RFOUT.

[0161] The first amplifier pin VPD is connected with 3.3V power supply through one end of the first 101 capacitor C101, one end of the first 102 capacitor C102 and the 66th resistor R66 in turn and grounded through the first 103 capacitor C103;

[0162] The other end of the first 101 capacitor C101 is grounded, and the other end of the first 102 capacitor C102 is grounded;

[0163] The second amplifier pin VCC is connected with 3.3V power supply through one end of the 96th capacitor C96, one end of the 97th capacitor C97 and the 65th resistor R65 in turn and grounded through the 98th capacitor C98;

[0164] The other end of the 96th capacitor C96 is grounded, and the other end of the 97th capacitor C97 is grounded;

[0165] The amplifier input pin RF IN is connected with the radio frequency signal purification amplification circuit 31;

[0166] The amplifier output pin RFOUT is connected with the second re-amplification circuit 32 through the first 104 capacitor C104 and the 28th filter U28 in turn.

[0167] Preferably, the retransmission module 2 further comprises the 119th capacitor C119 and the 120th capacitor C120, the second re-amplification circuit 32 and the third re-amplification circuit 32 are connected through the 119th capacitor C119, and the third re-amplification circuit 32 is connected with the 120th capacitor C120.

[0168] The model of the 26th amplifier U26 is HMC3653LP3BETR, and the model of the 28th filter U28 is BPF14.25G, but not limited thereto;

[0169] The re-amplification circuit 32 reduces the introduction of noise while amplifying signals through the 26th amplifier U26, and provides the ability to switch between different antennas or modes through the 28th filter U28, thereby increasing the flexibility of the system.

[0170] As Figure 9 shown, the utility model further discloses a user terminal signal detection system, including directional antenna 4, first signal filter 5, low noise amplifier 6, second signal filter 7, high gain amplifier 8, ground station 9 and above-mentioned user terminal signal detector 10;

[0171] The directional antenna 4, the first signal filter 5, the low noise amplifier 6, the second signal filter 7, the high gain amplifier 8 and the user terminal signal detector 10 are connected in sequence.

[0172] The terminal signal is processed by the directional antenna 4, the first signal filter 5, the low noise amplifier 6, the second signal filter 7, the high gain amplifier 8 and the user terminal signal detector 10 in sequence, and finally sent to the ground station 9.

[0173] Specifically:

[0174] The directional antenna 4 is used to receive the terminal signal and send it to the first signal filter 5.

[0175] The first signal filter 5 performs initial filtering processing on the terminal signal and sends it to the low noise amplifier 6.

[0176] The low noise amplifier 6 performs initial signal amplification processing on the terminal signal and sends it to the second signal filter 7.

[0177] The second signal filter 7 performs secondary filtering processing on the terminal signal and sends it to the high gain amplifier 8.

[0178] The high gain amplifier 8 performs secondary signal amplification processing on the terminal signal and sends it to the user terminal signal detector 10.

[0179] The user terminal signal detector 10 detects the terminal signal and transmits it to the ground station 9 through wireless data.

[0180] When in use, the directional antenna 4, the first signal filter 5, the low noise amplifier 6, the second signal filter 7, the high gain amplifier 8 and the user terminal signal detector 10 are integrated and placed under the unmanned aerial vehicle, and fly in the air with the unmanned aerial vehicle, and maintain wireless data connection with the ground station 9 in real time. If the user terminal signal detector 10 detects a terminal signal, the ground station 9 can see the strength of the current terminal signal, so as to determine whether there is a user terminal under the unmanned aerial vehicle.

[0181] Preferably, the first signal filter 5 is a low-pass filter, the gain of the low noise amplifier 6 is 15 decibels, the second signal filter 7 is a narrow-band band-pass filter of 14GHz-14.5GHz, and the gain of the high gain amplifier 8 is 40 decibels, but not limited thereto.

[0182] In summary, the utility model user terminal signal detector through RF detection module 1, retransmission module 2 and RF amplification module 3 to terminal signal carries out filtering amplification etc. optimization processing, solve the problem that user terminal signal is difficult to detect in the prior art. The utility model user terminal signal detection system, through the directional antenna 4, first signal filter 5, low noise amplifier 6, second signal filter 7, high gain amplifier 8 and user terminal signal detector 10 to terminal signal are handled, finally through wireless data to the ground station 9, realized remote monitoring and data collection. Integrated signal reception, filtering, amplification and detection multiple functions, can adapt to different signal environment and demand, with good flexibility and scalability.

[0183] The above is the preferred embodiment of the utility model, it should be pointed out that for ordinary skilled person in the art without departing from the principle of the utility model, can make a number of improvements and refinements, these improvements and refinements also be considered as the protection scope of the utility model.

Claims

1. A user terminal signal detector, characterized by The RF detection module, the forwarding module and the RF amplification module are connected in sequence; The RF detection module is used for converting the terminal signal of a user into an analog electric signal and sending the analog electric signal to the forwarding module; The forwarding module is used for optimizing the analog electric signal and sending the optimized analog electric signal to the RF amplification circuit; The RF amplification circuit is used for amplifying the optimized analog electric signal.

2. The user terminal signal detector of claim 1, wherein, The RF detection module comprises a radio frequency amplification controllable power supply circuit, a power supply circuit and a wireless communication power supply processing circuit; The radio frequency amplification controllable power supply circuit is used for acquiring the terminal signal and performing amplification and filtering processing on the terminal signal; The power supply circuit is used for controlling the switch of the power supply and detecting the state of the power supply; The wireless communication power supply processing circuit is used for converting and stabilizing the voltage of the power supply.

3. The user terminal signal detector of claim 2, wherein, The radio frequency amplification controllable power supply circuit comprises a power detection circuit and a first control circuit; The power detection circuit comprises a first power detector and a fifth connector connected with each other; The fifth connector is used for receiving the terminal signal and sending the terminal signal to the first power detector, and the first power detector is used for amplifying the terminal signal.

4. The user terminal signal detector of claim 3, wherein, The first control circuit comprises a sixth controller, a seventh pair of plate connector and a first connector; The seventh pair of plate connector and the first connector are connected with the sixth controller to control the communication of the radio frequency amplification controllable power supply circuit.

5. The user terminal signal detector of claim 2, wherein, The power supply circuit comprises a power supply control circuit and a voltage division filtering circuit, and the voltage division filtering circuit is used for detecting the voltage of the power supply; The power supply control circuit comprises a first terminal, a second MOS tube and a third transistor connected in sequence; The drain of the second MOS tube is connected with the first terminal and the power supply, the source of the second MOS tube is connected with the power supply and the gate, respectively, and the gate of the second MOS tube is connected with the emitter of the third transistor; The base of the third transistor is connected with the power supply, and the collector of the third transistor is connected with the base.

6. The user terminal signal detector of claim 2, wherein, The wireless communication power supply processing circuit comprises a conversion circuit and a voltage stabilizing circuit; The conversion circuit comprises a third converter and a third terminal connected with each other, the third terminal is used for controlling the on-off of the power supply, and the third converter is used for converting the voltage of the power supply; The voltage stabilizing circuit comprises a fourth voltage stabilizer used for stabilizing the voltage of the power supply.

7. The user terminal signal detector of claim 1, wherein, The forwarding module comprises a wireless communication circuit and a second control circuit, and the second control circuit is used for controlling the communication of the forwarding module; The wireless communication circuit comprises a transceiver chip, a radio frequency switch chip and a first radio frequency coaxial connector connected in sequence to receive the terminal signal sent by the RF detection module and send the optimized terminal signal to the RF amplification module.

8. The user terminal signal detector of claim 1, wherein, The RF amplification module comprises a radio frequency signal purification amplification circuit and at least one re-amplification circuit connected with each other to amplify the terminal signal step by step; The radio frequency signal purification amplification circuit comprises a twenty-seventh amplifier, a twenty-fifth filter and a second radio frequency coaxial connector connected in sequence to amplify the terminal signal for the first time.

9. The user terminal signal detector of claim 8, wherein, Each re-amplification circuit includes a twenty-sixth amplifier and a twenty-eighth filter connected to each other to re-amplify the terminal signal.

10. A user terminal signal detection system, characterized by The user terminal signal detector comprises a directional antenna, a first signal filter, a low noise amplifier, a second signal filter, a high gain amplifier, a ground station and the user terminal signal detector of any one of claims 1 to 9. The directional antenna, the first signal filter, the low noise amplifier, the second signal filter, the high gain amplifier and the user terminal signal detector are connected in sequence. The terminal signal is processed by the directional antenna, the first signal filter, the low noise amplifier, the second signal filter, the high gain amplifier and the user terminal signal detector in sequence, and finally sent to the ground station.

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