A full-standard communication signal power amplification and control system

Abstract

The present invention discloses a full-standard communication signal power amplification and control system, including an amplifier for power amplification and a control system for power control; compared with traditional amplifiers, it can filter out interference signals in mixed signals, thereby restoring and outputting useful signal waveforms to achieve optimal filtering characteristics, and at the same time perform digital filtering, gain adjustment, error correction and other processing through a gain module, and achieve internal temperature balance and energy consumption reduction through a stabilization module combined with a heat dissipation structure and a standby function; compared with traditional control systems, more accurate and stable control processing is achieved in combination with the functions of the above-mentioned amplifier.

Description

Technical Field

[0001] The present invention belongs to the technical field of communication signal processing, and in particular, relates to a full-standard communication signal power amplification and control system. Background Art

[0002] A full-standard communication signal is a signal standard used by communication systems that can span different countries or regions. This signal standard is usually designed to be universally applicable to ensure communication interoperability and compatibility between different regions. Full-standard communication signals usually cover voice, data and image transmission, such as telephone communications, mobile communications, radio and television. Some common full-standard communication standards include GSM (Global System for Mobile Communications), CDMA (Code Division Multiple Access), LTE (Long Term Evolution), Wi-Fi and Bluetooth. Each standard has its own specific modulation and demodulation methods, frequency bands and protocols. These standards are usually formulated and managed by international organizations or standardization agencies to ensure global communication interconnection and interoperability.

[0003] The amplifier in the communication signal is a device used to enhance the signal strength or power to ensure that the signal can remain stable and reliable during transmission. However, the current amplifiers have the following disadvantages that can cause signal instability:

[0004] 1. Noise: The amplifier will introduce noise, especially after the signal is amplified to a certain extent, the noise may become a problem and affect the communication quality;

[0005] 2. Distortion: The amplifier will introduce signal distortion, causing changes in signal shape and content, which in turn affects the decoding and understanding of the receiving end;

[0006] 3. Power consumption: The amplifier consumes a lot of power, especially when a large amount of signal amplification is required, which will lead to problems of high energy consumption and high temperature.

[0007] At the same time, for the signal control system, the recognition of the signal is often not accurate enough for subsequent analysis and judgment due to the low signal quality. Therefore, it needs to be combined with an amplifier to achieve a more balanced and stable state. However, the current system and amplifier are not well compatible and cannot achieve stable and efficient operation. Summary of the invention

[0008] In view of the above defects, the present invention provides a full-standard communication signal power amplification and control system, including an amplifier for power amplification and a control system for power control, the amplifier including a frequency band adaptive module, a gain module, a stabilization module and a high-efficiency structure;

[0009] The control system includes hardware and software decoders for signal identification, spectrum management module, security encryption module, monitoring module and interconnection module.

[0010] Further, the adaptive module includes a sensing circuit for frequency sensing, an adaptive filter, a multi-mode unit, a simulation tool, and a real-time monitoring tool;

[0011] The gain module includes a digital signal processing unit and a transistor adjustment unit;

[0012] The stabilization module includes a negative feedback unit, a temperature compensation element, and a power filter;

[0013] The high-efficiency structure includes a heat dissipation structure, a temperature monitoring unit and a standby unit.

[0014] Furthermore, the hardware for signal recognition includes a sensing circuit, a spectrum analyzer and a signal comparator, and the software decoder is an embedded digital signal processor;

[0015] The spectrum management module includes a frequency allocation unit, a channel switching unit and a spectrum monitoring unit;

[0016] The security encryption module adopts one of DES symmetric encryption, RSA asymmetric encryption, DSA digital signature or Diffie-Hellman key exchange;

[0017] The monitoring module includes an output power detection unit, a temperature monitoring unit, a current monitoring unit, a frequency response monitoring unit and a remote monitoring unit;

[0018] The interconnection module includes a wireless communication module for a terminal and another amplifier to perform data transmission.

[0019] Furthermore, the adaptive filter is replaced by an adaptive equalizer.

[0020] Furthermore, the digital signal processing unit and the transistor adjustment unit are both digital signal processors or microcontrollers with DSP functions.

[0021] Furthermore, the negative feedback unit is a feedback network structure with a stable voltage series negative feedback, and the feedback network is a resistor connected in series between the output and the input to form a feedback loop.

[0022] Furthermore, the heat dissipation structure is to add a heat sink or an air cooling mechanism to the amplifier.

[0023] Furthermore, the software decoder is an embedded digital signal processor.

[0024] Furthermore, the interconnection module includes a wireless communication module for data transmission between the terminal and another amplifier.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. For the amplifier, compared with the traditional amplifier, the RC and the operational amplifier are connected on the basis of the traditional circuit to form an active phase shift circuit, which can achieve a phase shift range of 0 to 360 degrees, thereby filtering out the interference signal in the mixed signal, thereby restoring and outputting the useful signal waveform to achieve the best filtering characteristics;

[0027] At the same time, the gain module is used to perform digital filtering, gain adjustment, error correction and other processing;

[0028] Through the set stabilization module, a relatively stable voltage series negative feedback is used as the feedback network structure. At the same time, temperature compensation and power supply filter are used to achieve the stability of the feedback network and internal temperature. Combined with the heat dissipation structure and standby function, the internal temperature balance and energy consumption reduction are achieved.

[0029] 2. For the control system, the amplifier can sense, analyze and judge the signal amplified by the amplifier. Compared with the traditional control system, the functions of the above amplifier can achieve more accurate and stable control processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 FIG. 4 is a circuit diagram of the phase shift circuit in the present invention.

[0031] Figure 2 Schematic diagram of the feedback loop in the present invention. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the device of the present invention will be described more fully below with reference to the relevant drawings. Embodiments of the device are given in the drawings. However, the device can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example

[0035] This embodiment provides a full-standard communication signal power amplification and control system, including an amplifier for power amplification and a control system for power control, the amplifier including a frequency band adaptive module, a gain module, a stabilization module and a high-efficiency structure, as follows:

[0036] Adaptive modules include:

[0037] (1) A sensing circuit for frequency perception, thereby completing the frequency recognition task;

[0038] (2) Adaptive filter (adaptive equalizer can also be used), using OP07 chip to realize the adder function, and then connecting RC with operational amplifier to form an active phase shift circuit according to the phase shift function of capacitor and inductor. The advantage is that OP07 chip has a very low input offset voltage, and OP07 chip does not require additional zero adjustment measures in many applications. At the same time, OP07 also has the characteristics of low input bias current and high open-loop gain. On the basis of the traditional circuit, RC is connected with operational amplifier to form an active phase shift circuit, so that a phase shift range of 0 to 360 degrees can be achieved, such as Figure 1 As shown, (a) is a 0°-90° phase shift, (c) is a 90°-180° phase shift, (b) is a 180°-270° phase shift, and (d) is a 270°-360° phase shift;

[0039] This filter uses DSP's DMA mode to collect external signals in real time. The external analog signal is first converted into A / D, and then the data is received through the receiving register of MCBSP. The algorithm of the adaptive filter adopts RLS algorithm, which is a recursive algorithm. It can update the filter parameters according to the latest input and output data without saving all historical data. It has a high computational complexity, but can provide faster convergence speed and better performance.

[0040] (3) A multi-mode unit, which is used to automatically detect the characteristics of the input signal and automatically switch the amplification mode. The sensor monitors the characteristics of the input signal and then selects the appropriate amplification mode based on the monitoring results;

[0041] (4) Simulation tools and real-time monitoring tools. The simulation tool is used to simulate and verify the parameters of the amplifier (circuit structure, component parameters, and brightness setting). The monitoring tool is used for real-time feedback and adjustment of the output frequency.

[0042] The gain module includes an adjustment unit using a digital signal processing unit and a transistor, wherein the digital signal processing unit is a digital signal processor (DSP) or a microcontroller with DSP function, which receives the digital data converted by the ADC and performs digital filtering, gain adjustment, error correction and other processing. The adjustment unit of the transistor also receives feedback information provided by the sensor through the digital signal processor (DSP) or the microcontroller with DSP function, and the automatic control logic can adjust the current, resistance or capacitance value to achieve a predetermined working point;

[0043] The stabilization module includes:

[0044] (1) Negative feedback unit, using a relatively stable voltage series negative feedback as the feedback network structure. The feedback network consists of a resistor connected in series between the output and the input to form a feedback loop (such as Figure 2 As shown), in this embodiment, the feedback factor β is set to 0.5, the input resistance Rin is set to 10kΩ, and the feedback resistance Rf can be calculated as:

[0045] Rf=β*Rin / (1-β)=0.5*10kΩ / (1-0.5)=10kΩ;

[0046] (2) Temperature compensation element, which compensates for the temperature effect of the transistor by using a thermistor as the resistor and inserting a temperature-dependent voltage between the base and emitter of the transistor. The two are combined to achieve the function of compensating the circuit temperature;

[0047] (3) Power supply filter, which has the functions of noise reduction, voltage stabilization, and isolation of interference between the power supply and the amplifier;

[0048] It should be noted that in the above process, the amplifier realizes the signal amplification function through an operational amplifier, and its operational amplifier should adopt an operational amplifier with low drift, and the transistor should adopt a transistor with low static power consumption.

[0049] Highly effective structure includes:

[0050] (1) Heat dissipation structure, that is, adding heat sinks, air cooling and other structures to the amplifier to reduce the loss of transistors and other electronic components when current passes through, prevent overheating, maintain stable performance, and extend its service life;

[0051] (2) a temperature monitoring unit, which monitors the temperature by setting a temperature sensor and setting a preset temperature value;

[0052] (3) Standby unit: the amplifier can still maintain low power consumption when there is no input signal. It also has a quick start function that can quickly respond and start amplifying the signal when an input signal is detected. It can reduce the power consumption of the amplifier, thereby saving energy and extending the service life of electronic components and reducing the heat generation and electromagnetic radiation of the amplifier, which helps to maintain the stability and reliability of the equipment and reduce the impact on the surrounding environment. It can be achieved through intelligent switches, power cascades, sleep modes, etc., which will not be described in detail here.

[0053] The working process is as follows: first, the frequency is identified through the sensing circuit, the interference signal in the mixed signal is filtered out through the adaptive filter, and the monitored signal characteristics are amplified by the sensor to restore and output the useful signal waveform. At the same time, the circuit voltage is stabilized by voltage series negative feedback, and the circuit temperature is monitored by the heat dissipation and temperature monitoring unit. When the temperature is too high, the power consumption of the amplifier is automatically reduced to prevent overheating. In the case of no input signal, it can automatically enter standby mode, which ensures the accurate identification of the signal and stable amplification processing.

[0054] The control system includes hardware and software decoders for signal identification, spectrum management module, security encryption module, monitoring module and interconnection module. The specific hardware includes:

[0055] (1) Perception circuits, which can use hardware such as sensors, receiving antennas, and microwave receivers to obtain signals or information to be processed. When the signal captured by the perception circuit is weak, the signal can be amplified by an amplifier before subsequent perception processing;

[0056] (2) Spectrum analyzer, which analyzes and measures the spectrum of the signal acquired by the sensing circuit, decomposes the input signal into components of different frequencies, and displays them on the spectrum graph, which helps to identify the frequency components, spectrum bandwidth, harmonics and interference in the signal, and facilitates data recording (which can be recorded in the subsequent monitoring computer);

[0057] (3) A signal comparator, which is used to determine whether the signal meets a specific condition or threshold, and trigger corresponding actions or controls (such as alarms) based on the comparison results. It should be noted that the alarm processing needs to send information to the terminal in the area covered by the network through the wireless communication module;

[0058] The software decoder is an embedded digital signal processor, which parses the data of the above-mentioned received original signal, performs corresponding parsing and processing on the data with communication protocol, and then extracts the required key information or data, and performs data response processing on the original signal received with poor quality to resend the data to ensure the accuracy of the original signal data. It should be noted that it also includes a user interface for providing the decoded data or information to the user;

[0059] The spectrum management module includes:

[0060] (1) A frequency allocation unit that allocates a specific frequency band of a signal to a specific user (preset ID) according to preset information;

[0061] (2) Channel switching unit, which performs switching processing based on the signal data analyzed by the software decoder (determined by the threshold of signal quality)

[0062] (3) A spectrum monitoring unit, which monitors the information such as the frequency and amplitude of the signal obtained by the spectrum analyzer, and connects to the automatic monitoring system to realize the automatic monitoring operation (for example, the design of spectrum analyzer + GPIB / USB converter + monitoring computer is used to form an automatic monitoring system, which has been applied in this technology and will not be described in detail here);

[0063] For jobs that need to be encrypted, encryption can be performed. The security encryption module used is DES symmetric encryption. Other encryption methods such as RSA asymmetric encryption, DSA digital signature or Diffie-Hellman key exchange can also be used;

[0064] It also includes a monitoring module, which includes an output power monitoring unit, a temperature monitoring unit, a current monitoring unit, a frequency response monitoring unit to monitor the frequency allocation unit and a remote monitoring unit, which can be connected to the above-mentioned detection computer to realize monitoring processing;

[0065] The interconnection module includes a wireless communication module for a terminal and another amplifier to perform data transmission, and is applied to the unit required to perform remote information transmission in this embodiment.

[0066] The working principle of the management and control system is as follows: the sensing circuit senses and processes the signal of the amplifier (or the amplified signal), and after analysis by the spectrum analyzer, decomposes the input signal into components of different frequencies and records them. The signal comparator determines whether the signal information obtained by the spectrum analyzer meets the preset thresholds and conditions, and triggers the corresponding action (alarm or issuance). During this process, the software decoder processes synchronously and determines whether to resend the data response request based on the signal information to ensure the accuracy of the original signal data. When sending a signal, the corresponding channel is selected through the corresponding information of the spectrum management module and then each specific ID is assigned to receive it. During this process, the monitoring module also monitors and records various data.

[0067] It should be noted that the structure described in the present invention can be implemented in a variety of different forms and is not limited to the described embodiments. Any equivalent transformations made by ordinary technicians in this field using the contents of the present invention description and drawings, or directly or indirectly applied to other related technical fields, such as the loading and unloading of other items, are included in the protection scope of the present invention.

Claims

1. A full-standard communication signal power amplification and control system, including an amplifier for power amplification and a control system for power control, characterized in that: The amplifier includes an adaptive module for identifying the original signal in the frequency band, a gain module for amplifying the corresponding characteristics of the original signal after identification, a stabilization module for maintaining the stability of the amplifier during the characteristic amplification process, and a high-efficiency structure for heat dissipation and reducing power consumption in non-working state; The adaptive module includes: a sensing circuit for frequency sensing, an adaptive filter with a phase shift range of 0 to 360 degrees, the adaptive filter is an active phase shift circuit composed of RC and an operational amplifier, a multi-mode unit for automatically detecting input signal characteristics and automatically switching amplification modes, a simulation tool for simulating and verifying amplifier parameters, and a monitoring tool for real-time feedback; The management and control system includes hardware for identifying signals processed by the amplifier and software decoders for parsing and processing, a spectrum management module for allocating and switching parsed signals, a security encryption module for encrypting signals during transmission, a monitoring module for synchronously monitoring data during the management and control process, and an interconnection module for data transmission.

2. A full-standard communication signal power amplification and control system as claimed in claim 1, characterized in that: Said The gain module includes a digital signal processing unit and a transistor adjustment unit; The stabilization module includes a negative feedback unit, a temperature compensation element, and a power filter; The high-efficiency structure includes a heat dissipation structure, a temperature monitoring unit and a standby unit.

3. A full-standard communication signal power amplification and control system as claimed in claim 1, characterized in that: The hardware used for signal recognition includes sensing circuits, spectrum analyzers, and signal comparators, and the software decoder is an embedded digital signal processor; The spectrum management module includes a frequency allocation unit, a channel switching unit and a spectrum monitoring unit; The security encryption module adopts one of DES symmetric encryption, RSA asymmetric encryption, DSA digital signature or Diffie-Hellman key exchange; The monitoring module includes an output power detection unit, a temperature monitoring unit, a current monitoring unit, a frequency response monitoring unit and a remote monitoring unit; The interconnection module includes a wireless communication module for a terminal and another amplifier to perform data transmission.

4. A full-standard communication signal power amplification and control system as claimed in claim 2, characterized in that: The adaptive filter is replaced by an adaptive equalizer.

5. A full-standard communication signal power amplification and control system as claimed in claim 2, characterized in that: The digital signal processing unit and the transistor adjustment unit are both digital signal processors or microcontrollers with DSP functions.

6. A full-standard communication signal power amplification and control system as claimed in claim 2, characterized in that: The negative feedback unit is a feedback network structure with a stable voltage series negative feedback. The feedback network is a resistor connected in series between the output and the input to form a feedback loop.

7. A full-mode communication signal power amplification and control system as claimed in claim 2, characterized in that: The heat dissipation structure is to add a heat sink or an air cooling mechanism to the amplifier.

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