Satellite receiving terminal of self-adaptive antenna array

Abstract

The utility model relates to the technical field of satellite receiving terminals, in particular to a satellite receiving terminal of a self-adaptive antenna array, which comprises a plurality of receiving antennas, a plurality of low-noise amplifiers, a plurality of peak detection modules, a plurality of voltage comparison modules, a main control module and a plurality of attitude adjustment modules. Two input ends of each voltage comparison module are respectively connected with the output ends of two adjacent peak detection modules, the output ends of the plurality of voltage comparison modules are respectively connected with different input ports of the main control module, different output ports of the main control module are respectively connected with the input ends of different attitude adjustment modules, and the attitude adjustment modules are used for adjusting the angle of a receiving antenna. According to the utility model, the voltage comparison module compares two adjacent peak value detection modules, and the main control module controls the corresponding attitude adjustment module to enable the receiving antenna with smaller signal intensity to deflect towards the receiving antenna with larger signal intensity, so that the signal receiving quality is improved, and the practicability is stronger.

Description

Technical Field

[0001] The utility model relates to the technical field of satellite receiving terminals, and more specifically, to a satellite receiving terminal with an adaptive antenna array. Background Art

[0002] With the continuous development of satellite communication technology, the requirements for the stability and efficiency of satellite signal reception are getting higher and higher; in traditional satellite receiving terminals, the antenna angle is usually fixed, which often limits the quality of the received signal in many cases.

[0003] On the one hand, since the position of the satellite is relatively fixed, but the environment where the receiving terminal is located may change continuously. For example, due to factors such as terrain, building obstruction, and meteorological conditions, a fixed-angle antenna may not always maintain the best signal reception state; on the other hand, with the increasing demand for mobile satellite communication, such as using satellite receiving terminals on mobile platforms such as vehicles and ships, it is necessary to be able to adjust the antenna angle in real time to adapt to different motion states and position changes to ensure continuous and stable signal reception.

[0004] Therefore, in order to overcome the limitations of traditional satellite receiving terminals in terms of fixed antenna angles, a satellite receiving terminal with an adaptive antenna array is needed, which can consider adjusting the antenna angle to adapt to different environmental and application requirements. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a satellite receiving terminal with an adaptive antenna array to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A satellite receiving terminal with an adaptive antenna array includes a plurality of receiving antennas, a plurality of low-noise amplifiers, a plurality of peak detection modules, a plurality of voltage comparison modules, a main control module, and a plurality of attitude adjustment modules. The receiving antennas, the low-noise amplifiers, the peak detection modules, and the attitude adjustment modules are in one-to-one correspondence. The plurality of receiving antennas form an antenna array. The receiving antennas, the low-noise amplifiers, and the peak detection modules are electrically connected in sequence. Two input ends of the voltage comparison module are respectively connected to the output ends of two adjacent peak detection modules. The output ends of the plurality of voltage comparison modules are respectively connected to different input ports of the main control module. Different output ports of the main control module are respectively connected to the input ends of different attitude adjustment modules. The attitude adjustment module is used to adjust the angle of the receiving antenna.

[0008] Preferably, the peak detection module includes a diode D, a capacitor C, and a resistor R1;

[0009] The positive electrode of the diode D serves as the input end of the peak detection module, the negative electrode of the diode D serves as the output end of the peak detection module, the first end of the capacitor C is connected to the negative electrode of the diode D, the second end of the capacitor C is grounded, the first end of the resistor R1 is connected to the negative electrode of the diode D, and the second end of the resistor R1 is grounded.

[0010] Preferably, the voltage comparison module includes a resistor R2, a resistor R3, an operational amplifier, a resistor R4, and a resistor R5;

[0011] The first ends of the resistor R2 and the resistor R3 respectively serve as the two input ends of the voltage comparison module. The second end of the resistor R2 is connected to the non-inverting input end of the operational amplifier. The second end of the resistor R3 is connected to the inverting input end of the operational amplifier. The first end of the resistor R4 is connected to the output end of the operational amplifier. The second end of the resistor R4 is connected to the first end of the resistor R5. The second end of the resistor R5 is grounded. The second end of the resistor R4 serves as the output end of the voltage comparison module.

[0012] Preferably, the attitude adjustment module includes a power supply VCC, a resistor R6, a resistor R7, a triode Q, and a motor M;

[0013] The first end of the resistor R6 serves as the input end of the attitude adjustment module. The second end of the resistor R6 is connected to the base of the triode Q. The first end of the resistor R7 is connected to the power supply VCC. The second end of the resistor R7 is connected to the base of the triode Q. The emitter of the triode Q is connected to the power supply VCC. The collector of the triode Q is connected to the first end of the motor M. The second end of the motor M is grounded.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] The utility model compares adjacent peak detection modules through the voltage comparison module, and then controls the corresponding attitude adjustment module through the main control module to deflect the receiving antenna with a smaller signal intensity towards the receiving antenna with a larger signal intensity, improving the signal reception quality and having stronger practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 is a circuit diagram of the peak detection module in the utility model;

[0018] Figure 3 is a circuit diagram of the voltage comparison module in the utility model;

[0019] Figure 4 is a circuit diagram of the attitude adjustment module in the utility model;

[0020] In the figure:

[0021] 1. Receiving antenna;

[0022] 2. Low-noise amplifier;

[0023] 3. Peak detection module;

[0024] 4. Voltage comparison module;

[0025] 5. Main control module;

[0026] 6. Attitude adjustment module. Specific implementation mode

[0027] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0029] A satellite receiving terminal with an adaptive antenna array includes a plurality of receiving antennas 1, a plurality of low-noise amplifiers 2, a plurality of peak detection modules 3, a plurality of voltage comparison modules 4, a main control module 5, and a plurality of attitude adjustment modules 6. The receiving antennas 1, low-noise amplifiers 2, peak detection modules 3, and attitude adjustment modules 6 are in one-to-one correspondence. The plurality of receiving antennas 1 form an antenna array. The receiving antennas 1, low-noise amplifiers 2, and peak detection modules 3 are electrically connected in sequence. Two input ends of the voltage comparison module 4 are respectively connected to the output ends of two adjacent peak detection modules 3. The output ends of the plurality of voltage comparison modules 4 are respectively connected to different input ports of the main control module 5. Different output ports of the main control module 5 are respectively connected to the input ends of different attitude adjustment modules 6. The attitude adjustment module 6 is used to adjust the angle of the receiving antenna 1. The peak voltage detected by the peak detection module 3 is used as an intensity index of the received signal. Then, by comparing the peak voltages output by two adjacent peak detection modules 3, finally, the main control module 5 controls the attitude adjustment module 6 to turn the receiving antenna 1 with a lower received signal intensity towards the receiving antenna 1 with a higher received signal intensity, so as to improve the quality of the received signal.

[0030] In this embodiment, the peak detection module 3 includes a diode D, a capacitor C, and a resistor R1;

[0031] The positive electrode of diode D serves as the input terminal of the peak detection module 3, and the negative electrode of diode D serves as the output terminal of the peak detection module 3. The first terminal of capacitor C is connected to the negative electrode of diode D, the second terminal of capacitor C is grounded, the first terminal of resistor R1 is connected to the negative electrode of diode D, and the second terminal of resistor R1 is grounded. The unidirectional conductivity of diode D is used to charge capacitor C until the voltage value on capacitor C reaches the maximum value of the received signal. Resistor R1 is used to discharge the voltage on capacitor C.

[0032] Specifically, the voltage comparison module 4 includes resistor R2, resistor R3, an operational amplifier, resistor R4, and resistor R5.

[0033] The first terminals of resistor R2 and resistor R3 respectively serve as the two input terminals of the voltage comparison module 4. The second terminal of resistor R2 is connected to the non-inverting input terminal of the operational amplifier, the second terminal of resistor R3 is connected to the inverting input terminal of the operational amplifier, the first terminal of resistor R4 is connected to the output terminal of the operational amplifier, the second terminal of resistor R4 is connected to the first terminal of resistor R5, the second terminal of resistor R5 is grounded, and the second terminal of resistor R4 serves as the output terminal of the voltage comparison module 4. Resistor R4 and resistor R5 are used for voltage division to prevent the voltage value from being too large.

[0034] Furthermore, the attitude adjustment module 6 includes power supply VCC, resistor R6, resistor R7, triode Q, and motor M.

[0035] The first terminal of resistor R6 serves as the input terminal of the attitude adjustment module 6. The second terminal of resistor R6 is connected to the base of triode Q. The first terminal of resistor R7 is connected to power supply VCC, the second terminal of resistor R7 is connected to the base of triode Q. The emitter of triode Q is connected to power supply VCC, the collector of triode Q is connected to the first terminal of motor M, and the second terminal of motor M is grounded. Triode Q is a PNP triode. When the base of triode Q is at a low level, triode Q conducts and motor M operates.

[0036] When the satellite receiving terminal of the adaptive antenna array of the present utility model is in use, multiple receiving antennas 1 form an antenna array, and then the received signal is amplified by the low-noise amplifier 2. The peak detection module 3 charges capacitor C through the unidirectional conductivity of diode D until the voltage on capacitor C reaches the peak of the received signal. The peak detection module 3 will output the peak of the received signal. The voltage comparison module 4 compares the signals output by two adjacent peak detection modules 3, and then judges the signal strength received by the receiving antenna 1. The voltage comparison module 4 outputs a signal to the main control module 5, and the main control module 5 then controls the attitude adjustment module 6 to deflect the receiving antenna 1 with a weak received signal strength towards the receiving antenna 1 with a strong received signal strength, improving the quality of the received signal. The deflection speed and angle of the receiving antenna 1 can be slowed down by a speed-changing gear to prevent excessive and too-fast deflection. In addition, the low-noise amplifier 2 is also connected to the signal processing chip of the satellite receiving terminal to complete the processing of the signal.

[0037] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A satellite receiving terminal with an adaptive antenna array, comprising a plurality of receiving antennas (1), a plurality of low-noise amplifiers (2), a plurality of peak detection modules (3), a plurality of voltage comparison modules (4), a main control module (5) and a plurality of attitude adjustment modules (6), characterized in that: The receiving antenna (1), the low-noise amplifier (2), the peak detection module (3), and the attitude adjustment module (6) correspond to each other one by one. A plurality of the receiving antennas (1) form an antenna array. The receiving antenna (1), the low-noise amplifier (2), and the peak detection module (3) are electrically connected in sequence. Two input terminals of the voltage comparison module (4) are respectively connected to output terminals of two adjacent peak detection modules (3). Output terminals of a plurality of the voltage comparison modules (4) are respectively connected to different input ports of the main control module (5). Different output ports of the main control module (5) are respectively connected to input terminals of different attitude adjustment modules (6). The attitude adjustment module (6) is used to adjust the angle of the receiving antenna (1).

2. The satellite receiving terminal of the adaptive antenna array according to claim 1, wherein: The peak detection module (3) includes a diode D, a capacitor C, and a resistor R1; The positive electrode of the diode D serves as the input terminal of the peak detection module (3), and the negative electrode of the diode D serves as the output terminal of the peak detection module (3). The first end of the capacitor C is connected to the negative electrode of the diode D, the second end of the capacitor C is grounded, the first end of the resistor R1 is connected to the negative electrode of the diode D, and the second end of the resistor R1 is grounded.

3. The satellite receiving terminal of the adaptive antenna array according to claim 1, wherein: The voltage comparison module (4) includes a resistor R2, a resistor R3, an operational amplifier, a resistor R4, and a resistor R5; The first ends of the resistor R2 and the resistor R3 respectively serve as the two input terminals of the voltage comparison module (4). The second end of the resistor R2 is connected to the non-inverting input terminal of the operational amplifier, the second end of the resistor R3 is connected to the inverting input terminal of the operational amplifier, the first end of the resistor R4 is connected to the output terminal of the operational amplifier, the second end of the resistor R4 is connected to the first end of the resistor R5, the second end of the resistor R5 is grounded, and the second end of the resistor R4 serves as the output terminal of the voltage comparison module (4).

4. The satellite receiving terminal of the adaptive antenna array according to claim 1, wherein: The attitude adjustment module (6) includes a power supply VCC, a resistor R6, a resistor R7, a triode Q, and a motor M; The first end of the resistor R6 serves as the input terminal of the attitude adjustment module (6). The second end of the resistor R6 is connected to the base of the triode Q. The first end of the resistor R7 is connected to the power supply VCC, the second end of the resistor R7 is connected to the base of the triode Q. The emitter of the triode Q is connected to the power supply VCC, the collector of the triode Q is connected to the first end of the motor M, and the second end of the motor M is grounded.

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