Signal strength adjusting system, method and device and storage medium

Abstract

The invention discloses a signal strength adjusting system, method and device and a storage medium, and relates to the field of communication signal adjusting and product performance testing, and the system comprises a radio frequency remote unit which is used for obtaining a specified type of communication signal, and transmitting the communication signal to a digital attenuator through a feeder line; the digital attenuator is used for carrying out attenuation processing on the obtained communication signal; the first power divider is used for combining the multiple paths of attenuation communication signals; and the second power divider is used for carrying out shunt processing on the combined attenuation communication signal so as to respectively send out the shunt attenuation communication signal through different antennas. According to the technical scheme of the embodiment of the invention, the receiving stability of communication signals is improved, the signal fluctuation phenomenon is avoided, the response speed of the signal attenuation process is improved, the dynamic adjustment of signal power is realized, the wiring complexity and feeder line cost are reduced, and the distribution uniformity of indoor environment signals is ensured.

Description

Technical Field

[0001] This invention relates to the field of communication signal conditioning and product performance testing, and in particular to a signal strength conditioning system, method, apparatus and storage medium. Background Technology

[0002] With the continuous development of technology, electronic products, especially IoT products, are emerging in an endless stream. In order to ensure their stable performance, performance tests under different signal scenarios are required before the products are launched on the market. How to accurately adjust the signal strength of the environment in which the IoT products are located has become a key issue of concern in the field of product testing.

[0003] In existing technologies, signal testing scenarios for IoT products such as IoT diaphragm gas meters, IoT ultrasonic gas meters, IoT combustible gas detectors, IoT valve well gas leak monitors, IoT smart pressure monitoring terminals, and IoT smart cathodic protection data acquisition devices are typically set up in environments with extremely weak or no signals, such as basements or air-raid shelters. First, a communication signal is introduced through a Yagi antenna or signal amplifier, then attenuated by an added mechanical attenuator, and finally, the weak signal environment required by the IoT product is constructed by an antenna placed in the center of the basement or air-raid shelter.

[0004] However, among the above signal conditioning methods, the communication signal introduced by the Yagi antenna or signal amplifier fluctuates greatly, and the mechanical attenuator has a slow response speed, making it difficult to achieve dynamic adjustment of signal strength. At the same time, the large space of the basement or air-raid shelter often results in uneven distribution of communication signal. Summary of the Invention

[0005] This invention provides a signal strength adjustment system, method, device, and storage medium to solve the problems of low signal strength adjustment efficiency and poor signal adjustment accuracy in test environments.

[0006] According to another aspect of the present invention, a signal strength adjustment system is provided, comprising: a plurality of radio frequency remote units, a plurality of digital attenuators, a first power divider, a second power divider, and a plurality of antennas;

[0007] The radio frequency remote unit is connected to the corresponding digital attenuator, and is used to acquire a specified type of communication signal and send the communication signal to the digital attenuator through a feeder.

[0008] The digital attenuator is connected to the first power divider and is used to attenuate the acquired communication signal to obtain an attenuated communication signal, and then send the attenuated communication signal to the first power divider.

[0009] The first power divider is connected to the second power divider and is used to combine multiple attenuated communication signals to send the combined attenuated communication signal to the second power divider.

[0010] The second power divider, connected to the plurality of antennas, is used to de-path the combined attenuated communication signal so that the de-path attenuated communication signal is transmitted separately through different antennas.

[0011] The signal strength adjustment system further includes a fixed attenuator; the fixed attenuator is connected to the radio frequency remote unit and the digital attenuator, and is used to pre-attenuate the acquired communication signal and send the pre-attenuated communication signal to the digital attenuator.

[0012] The signal strength adjustment system also includes a serial port server; the serial port server is communicatively connected to each of the digital attenuators and the remote control platform, and is used to adjust the attenuation parameters of the digital attenuators according to the attenuation adjustment command issued by the remote control platform.

[0013] The serial port server is also used to connect the communication signal output by the current radio frequency remote unit to a backup digital attenuator according to the attenuation switching command, so as to attenuate the communication signal output by the current radio frequency remote unit through the backup digital attenuator; wherein, the backup digital attenuator is a shared digital attenuator or a digital attenuator corresponding to other radio frequency remote units.

[0014] The serial port server is specifically used to perform power compensation on the digital attenuator based on the attenuation adjustment command issued by the remote control platform, using a compensation mapping table or iterative compensation rules.

[0015] The second power divider connects each antenna to a feeder of the same length, and the antennas are distributed in different indoor locations, with the distance between any two antennas being greater than or equal to a preset distance threshold.

[0016] According to another aspect of the present invention, a signal strength adjustment method is provided, comprising:

[0017] The radio frequency remote unit acquires a specified type of communication signal and transmits the communication signal to the digital attenuator via a feeder;

[0018] The digital attenuator attenuates the acquired communication signal to obtain an attenuated communication signal, and sends the attenuated communication signal to the first power divider.

[0019] The first power divider combines multiple attenuated communication signals to send the combined attenuated communication signal to the second power divider;

[0020] The second power divider splits the combined attenuated communication signal to transmit the split attenuated communication signal through different antennas.

[0021] According to another aspect of the present invention, a signal strength adjustment device is provided, comprising:

[0022] A signal transmission execution module, configured in the radio frequency remote unit, is used to acquire a communication signal of a specified type and send the communication signal to a digital attenuator via a feeder;

[0023] A signal attenuation execution module, configured in the digital attenuator, is used to attenuate the acquired communication signal to obtain an attenuated communication signal, and send the attenuated communication signal to the first power divider;

[0024] A signal combining execution module is configured in the first power divider to combine multiple attenuated communication signals and send the combined attenuated communication signal to the second power divider.

[0025] A signal splitting execution module, configured in the second power divider, is used to split the combined attenuated communication signal so that the split attenuated communication signal is transmitted through different antennas.

[0026] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the signal strength adjustment method described in any embodiment of the present invention.

[0027] According to another aspect of the present invention, a computer program product is provided, comprising a computer program that, when executed by a processor, implements the signal strength adjustment method described in any embodiment of the present invention.

[0028] The technical solution of this invention acquires a specified type of communication signal through a radio frequency remote unit and sends the communication signal to a digital attenuator via a feeder, thereby improving the reception stability of the communication signal and avoiding signal fluctuations. The digital attenuator attenuates the acquired communication signal to obtain an attenuated communication signal, which is then sent to a first power divider, improving the response speed of the signal attenuation process and enabling dynamic adjustment of signal power. The first power divider combines multiple attenuated communication signals, and a second power divider splits the combined attenuated communication signals, reducing the number of feeders between power dividers and lowering wiring complexity and feeder costs. Finally, the split attenuated communication signals are transmitted separately through different antennas, ensuring uniform signal distribution in the indoor environment.

[0029] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of a signal strength adjustment system according to Embodiment 1 of the present invention;

[0032] Figure 2 This is a schematic diagram of another signal strength adjustment system provided in Embodiment 1 of the present invention;

[0033] Figure 3 This is a schematic diagram of an application scenario of the signal strength adjustment system provided in Embodiment 2 of the present invention;

[0034] Figure 4 This is a flowchart of a signal strength adjustment method provided in Embodiment 3 of the present invention;

[0035] Figure 5 This is a schematic diagram of a signal strength adjustment device according to Embodiment 4 of the present invention. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] Example 1

[0039] Figure 1 This is a schematic diagram of a signal strength adjustment system provided in Embodiment 1 of the present invention, as shown below. Figure 1 As shown, the system includes: multiple radio frequency remote units 100, multiple digital attenuators 200, a first power divider 300, a second power divider 400, and multiple antennas 500; each radio frequency remote unit 100 is connected to a corresponding digital attenuator 200, and is used to acquire a specified type of communication signal and send the communication signal to the digital attenuator 200 through a feeder; each digital attenuator 200 is connected to the first power divider 300, and is used to attenuate the acquired communication signal to obtain an attenuated communication signal, and send the attenuated communication signal to the first power divider 300.

[0040] Specifically, the type of communication signal can be determined by the communication operator and / or the standard type; whereby the standard type refers to the standard specification of wireless communication technology, which may include Narrow Band - Internet of Things (NB-IoT) signals, 5G (5th Generation Mobile Communication Technology) signals, CAT.1 (Long Term Evolution User Equipment Category 1) signals, and Long Range Radio (LoRa) signals, etc.; optionally, in the embodiments of the present invention, neither the operator type nor the standard type is specifically limited.

[0041] For each Remote Radio Unit (RRU) 100, it can be used to acquire a communication signal of a certain standard type from a communication operator. For example, when it is necessary to acquire the NB-IoT signal of operator A, the NB-IoT signal of operator B, the NB-IoT signal of operator C, the 5G signal of operator A, the 5G signal of operator B, the 5G signal of operator C, the CAT.1 signal of operator A, the CAT.1 signal of operator B, the CAT.1 signal of operator C, and the LoRa signal, one RRU 100 is configured for each of the above 10 communication signals, that is, the RRU 100 is matched with the communication signal type one by one.

[0042] At this point, each RF remote unit 100 only needs to be configured with one output port, through which the communication signal is sent to the corresponding digital attenuator 200. Furthermore, each RF remote unit 100 can also be used to selectively acquire communication signals of multiple standards under one communication operator, or communication signals of multiple communication operators under one standard. In this case, the RF remote unit 100 is actually matched with multiple communication signal types. Correspondingly, the RF remote unit 100 needs to be configured with multiple output ports, through which different types of communication signals are sent to different digital attenuators 200.

[0043] The radio frequency remote unit 100 and the digital attenuator 200 are connected by a feeder line. The feeder line not only has the characteristics of low loss and high efficiency, but also has sufficient power capacity to carry communication signals of different frequency bands. The digital attenuator (DSA) 200 is an electronic device that precisely controls the power of communication signals (e.g., radio frequency signals) through digital signals. In this embodiment of the invention, in order to ensure independent adjustment of different types of communication signals, different digital attenuators 200 can be configured for different types of communication signals, that is, the digital attenuator 200 can be matched one by one with the type of communication signal.

[0044] Since the digital attenuator 200 is matched one-to-one with the communication signal type, when each RF remote unit 100 is used to acquire a communication signal of one standard type from one communication operator, the RF remote unit 100 and the digital attenuator 200 are also matched one-to-one. However, when each RF remote unit 100 is used to acquire multiple communication standards from one communication operator, or communication signals from multiple communication operators under one standard type, each RF remote unit 100 is matched with the same number of digital attenuators 200 according to the number of communication signal types it carries. The digital attenuator 200 provides a weak signal source for the device under test by attenuating the power of the communication signal.

[0045] like Figure 2 As shown, optionally, in this embodiment of the invention, the signal strength adjustment system further includes a fixed attenuator 600; the fixed attenuator 600 is connected to the radio frequency remote unit 100 and the digital attenuator 200, and is used to pre-attenuate the acquired communication signal and send the pre-attenuated communication signal to the digital attenuator 200.

[0046] Specifically, the output power of the radio frequency remote unit 100 is often high, for example, its power can reach the range of 20-40 dBm (decibel-milliwatt), which may exceed the maximum input power of the digital attenuator 200 (e.g., 30 dBm). In this case, a fixed attenuator 600 can be configured between the radio frequency remote unit 100 and the digital attenuator 200. For example, a wideband fixed attenuator 600 with a maximum input power of 30 dBm can be configured to reduce the communication signal power to a safe range, while adapting to the frequency band requirements of different standards. This avoids power overload of the digital attenuator 200 and ensures the safe operation of the digital attenuator 200.

[0047] Optionally, in this embodiment of the invention, the signal strength adjustment system further includes a serial port server 700; the serial port server 700 is connected to each digital attenuator 200 and a remote control platform, and is used to adjust the attenuation parameters of the digital attenuator 200 according to the attenuation adjustment command issued by the remote control platform.

[0048] Specifically, the serial port server 700 connects to each digital attenuator 200 in parallel via multiple interfaces. These interfaces can be TTL (Transistor-Transistor Logic), RS-232, or RS-485, among others. Simultaneously, the serial port server connects to a remote control platform (e.g., a cloud platform or a local server) via wired (e.g., Ethernet) or wireless (e.g., 4G) connections. Based on attenuation parameters (e.g., attenuation values) from the remote control platform, the server enables remote attenuation adjustment of the digital attenuators 200, thereby improving the ease of adjustment of the digital attenuators 200 and enhancing the testing convenience of the device under test in various weak signal environments.

[0049] Optionally, in this embodiment of the invention, the serial port server 700 is further configured to connect the communication signal output by the current radio frequency remote unit 100 to the backup digital attenuator 200 according to the attenuation switching instruction, so as to attenuate the communication signal output by the current radio frequency remote unit 100 through the backup digital attenuator 200; wherein, the backup digital attenuator 200 is a shared digital attenuator 200 or a digital attenuator 200 corresponding to other radio frequency remote units 100.

[0050] Specifically, since digital attenuators may experience overload or other abnormal phenomena due to excessive input power, they may be unable to complete accurate attenuation processing. Therefore, when the radio frequency remote unit 100 and the digital attenuator 200 are matched one-to-one, an abnormal digital attenuator 200 will cause the communication signal of the current transmission type to be unable to be accurately attenuated. In this case, the digital attenuators 200 corresponding to other radio frequency remote units 100 can be used as backup digital attenuators 200 for the current radio frequency remote unit 100, or a common backup digital attenuator 200 can be configured for each radio frequency remote unit 100.

[0051] Under normal conditions, the RF remote unit 100 is connected to the backup digital attenuator 200, but attenuation is not performed through this transmission path. The serial port server will disconnect this transmission path. When the digital attenuator 200 corresponding to the current RF remote unit 100 malfunctions, the serial port server will close the transmission path between the current RF remote unit 100 and the corresponding digital attenuator 200 and open the transmission path between the current RF remote unit 100 and the backup digital attenuator according to the attenuation switching command issued by the remote control platform.

[0052] Specifically, for the device under test, it is often necessary to test its performance under low-intensity conditions of different types of communication signals sequentially. That is, the number of communication signals that need to be attenuated at the current moment may only be one or a few. This means that when performing targeted attenuation adjustment on the communication signal carried by the current RF remote unit 100, it is not necessary to adjust the communication signals carried by other RF remote units 100. Therefore, even if the digital attenuator 200 corresponding to other RF remote units 100 is used as a backup digital attenuator 200 for the current RF remote unit 100, it will not affect the signal attenuation task carried by the backup digital attenuator 200 itself. Thus, by switching the transmission path between the RF remote unit 100 and the digital attenuator 200, the serial server 700 can complete the signal attenuation processing through the backup digital attenuator 200 when the digital attenuator 200 is abnormal, thereby improving the fault tolerance and disaster recovery performance of the signal strength adjustment system and ensuring the smooth adjustment of signal strength.

[0053] The first power divider 300 is connected to the second power divider 400 and is used to combine multiple attenuated communication signals to send the combined attenuated communication signal to the second power divider 400; the second power divider 400 is connected to the plurality of antennas 500 and is used to de-path the combined attenuated communication signal to transmit the de-path attenuated communication signal through different antennas 500 respectively.

[0054] Specifically, a power divider can split the energy of one input signal into two or more output signals with equal or unequal energy, or combine the energy of multiple signals into one output signal. The first power divider 300 combines multiple attenuated communication signals from different communication operators and standards into one signal (i.e., combined attenuated communication signal), and transmits it to the second power divider 400 through a feeder. In this way, by using frequency division multiplexing (FDM) or time division multiplexing (TDM), the number of feeders required for the signal strength adjustment system is reduced, and the wiring complexity and feeder cost are reduced.

[0055] After acquiring the combined attenuation communication signal, the second power divider 400 further splits the combined attenuation communication signal into multiple signals of equal energy (i.e., split attenuation communication signals). Then, the different split attenuation communication signals are sent to antennas at different locations to ensure the uniformity of signal distribution in the indoor environment. Subsequently, the device under test (e.g., an IoT device) located in the indoor environment acquires the attenuation communication signals emitted by the antennas to test its own performance in the current weak signal environment.

[0056] Optionally, in this embodiment of the invention, the second power divider 400 is connected to each antenna 500 via feed lines of the same length, and each antenna 500 is distributed in different indoor locations, and the interval between any two antennas 500 is greater than or equal to a preset distance threshold.

[0057] Specifically, antenna 500 is a full-band antenna. The second power divider 400 splits the combined attenuated communication signal into multiple outputs, which are connected to each full-band antenna through multiple feeders of the same length to avoid phase difference and power imbalance. At the same time, each antenna 500 is distributed in different locations indoors, and any two antennas 500 are kept at a relatively long distance (i.e., the interval distance is greater than or equal to a preset distance threshold) to avoid signal dead zones indoors, which would cause different signal strengths received by each tested device, thus leading to deviations in performance test results.

[0058] For example, the antennas 500 can be arranged in a four-corner-center configuration, with one antenna 500 located in the center of the room and the other four antennas 500 located in the four corners of the room; or they can be arranged in a four-sided-center configuration, with one antenna 500 located in the center and the other four antennas 500 located in the center of the four walls. This further ensures the uniformity of signal strength in the indoor space, allowing each device under test to perform performance tests under the same signal strength, thus improving the accuracy of the performance test results.

[0059] The technical solution of this invention acquires a specified type of communication signal through a radio frequency remote unit and sends the communication signal to a digital attenuator via a feeder, thereby improving the reception stability of the communication signal and avoiding signal fluctuations. The digital attenuator attenuates the acquired communication signal to obtain an attenuated communication signal, which is then sent to a first power divider, improving the response speed of the signal attenuation process and enabling dynamic adjustment of signal power. The first power divider combines multiple attenuated communication signals, and a second power divider splits the combined attenuated communication signals, reducing the number of feeders between power dividers and lowering wiring complexity and feeder costs. Finally, the split attenuated communication signals are transmitted separately through different antennas, ensuring uniform signal distribution in the indoor environment.

[0060] Example 2

[0061] Figure 3 This is a schematic diagram of an application scenario for the signal strength adjustment system provided in Embodiment 2 of the present invention, such as... Figure 3 As shown, the digital attenuator, the first power divider, and the serial port server can be configured inside the control cabinet, which provides one or more control cabinet interfaces to the outside. The radio frequency remote unit is configured outside the control cabinet, and it introduces the communication signal into the control cabinet through the feeder and the control cabinet interface. After the communication signal enters the control cabinet, it first enters the digital attenuator. The digital attenuator attenuates the acquired communication signal and sends the attenuated communication signal to the first power divider. The first power divider combines the multiple attenuated communication signals to obtain a combined attenuated communication signal.

[0062] The second power divider and antennas are configured in the shielded room, which provides an external shielded room interface. Multiple IoT products (i.e., devices under test) are placed in different locations within the shielded room. The second power divider connects to each antenna via feeder cables of the same length, and the antennas are distributed in different indoor locations to ensure the uniformity of signal strength in the indoor space. The second power divider splits the combined attenuated communication signal to transmit the split attenuated communication signal through different antennas.

[0063] After the device under test completes the performance test under the current signal strength, it can save the performance test results locally or send them to the remote control platform. When it is necessary to switch to the next signal strength, the remote control platform sends an attenuation adjustment command to the serial port server. After parsing the attenuation adjustment command, the serial port server determines the adjustment object (i.e., which digital attenuator corresponds to the communication signal to be adjusted) and the adjustment scheme (i.e., the specific attenuation value), and then completes the attenuation adjustment of the communication signal through the digital attenuator so that the IoT product can obtain the communication signal of the required strength.

[0064] Optionally, in this embodiment of the invention, the serial port server is specifically used to perform power compensation on the digital attenuator based on a compensation mapping table or iterative compensation rules, according to the attenuation adjustment command issued by the remote control platform. Specifically, the first power divider and the second power divider often experience signal attenuation during signal transmission. This results in the indoor environment where the device under test is located not reaching the expected signal strength after the communication signal is transmitted through the antenna (e.g., the actual signal strength is less than the expected signal strength), which leads to deviations in the performance test results of the device under test.

[0065] Taking the above technical solution as an example, when it is necessary to make the communication signal A in the indoor environment reach the desired signal strength A1, the value of the digital attenuator corresponding to the communication signal A is adjusted to A2 by calculation. However, since both the first power divider and the second power divider may have attenuation during transmission, even if the value of the digital attenuator is adjusted to A2, the communication signal in the indoor environment can only reach a signal strength A3 (i.e., actual signal strength) that is less than the desired signal strength A1. At this time, it is necessary to compensate for it when adjusting the value of the digital attenuator. For example, the value of the digital attenuator is adjusted to a value A4 that is greater than A2 in order to make the signal strength transmitted to the indoor environment reach the desired signal strength A1.

[0066] The aforementioned compensation strategy can be obtained through a compensation mapping table, which can be constructed based on the experimental results of multiple performance tests or on the experience of testers. The serial port server can also continuously modify the adjustment value of the digital attenuator according to the iterative compensation rules and based on a pre-set iteration step size, while simultaneously acquiring the actual signal strength detected by the device under test. This process continues until the signal strength detected by the device under test reaches the expected signal strength required for the test, at which point the numerical adjustment of the digital attenuator is complete. This power compensation of the digital attenuator based on the compensation mapping table or iterative compensation rules greatly improves the signal adjustment accuracy of the test environment and ensures precise control of signal strength.

[0067] The technical solution of this invention acquires a specified type of communication signal through a radio frequency remote unit and sends the communication signal to a digital attenuator via a feeder, thereby improving the reception stability of the communication signal and avoiding signal fluctuations. The digital attenuator attenuates the acquired communication signal to obtain an attenuated communication signal, which is then sent to a first power divider, improving the response speed of the signal attenuation process and enabling dynamic adjustment of signal power. The first power divider combines multiple attenuated communication signals, and a second power divider splits the combined attenuated communication signals, reducing the number of feeders between power dividers and lowering wiring complexity and feeder costs. Finally, the split attenuated communication signals are transmitted separately through different antennas, ensuring uniform signal distribution in the indoor environment.

[0068] Example 3

[0069] Figure 4 This is a flowchart of a signal strength adjustment method provided in Embodiment 3 of the present invention. This method can be executed by a signal strength adjustment device, which can be implemented in hardware and / or software. This signal strength adjustment device can be configured in the signal strength adjustment system described in any embodiment of the present invention. Figure 4 As shown, the method includes:

[0070] S401, The radio frequency remote unit acquires a communication signal of a specified type and sends the communication signal to the digital attenuator through a feeder.

[0071] S402, The digital attenuator attenuates the acquired communication signal to obtain an attenuated communication signal, and sends the attenuated communication signal to the first power divider.

[0072] S403. The first power divider performs a multiple-path attenuation communication signal combining process to send the combined attenuation communication signal to the second power divider.

[0073] S404. The second power divider performs split processing on the combined attenuated communication signal so that the split attenuated communication signal is transmitted through different antennas.

[0074] The technical solution of this invention acquires a specified type of communication signal through a radio frequency remote unit and sends the communication signal to a digital attenuator via a feeder, thereby improving the reception stability of the communication signal and avoiding signal fluctuations. The digital attenuator attenuates the acquired communication signal to obtain an attenuated communication signal, which is then sent to a first power divider, improving the response speed of the signal attenuation process and enabling dynamic adjustment of signal power. The first power divider combines multiple attenuated communication signals, and a second power divider splits the combined attenuated communication signals, reducing the number of feeders between power dividers and lowering wiring complexity and feeder costs. Finally, the split attenuated communication signals are transmitted separately through different antennas, ensuring uniform signal distribution in the indoor environment.

[0075] Example 4

[0076] Figure 5 This is a structural block diagram of a signal strength adjustment device provided in Embodiment 4 of the present invention. This signal strength adjustment device can be configured in any of the signal strength adjustment systems described in the embodiments of the present invention. The device specifically includes:

[0077] The signal transmission execution module 501 is configured in the radio frequency remote unit and is used to acquire a specified type of communication signal and send the communication signal to the digital attenuator through a feeder.

[0078] The signal attenuation execution module 502 is configured in the digital attenuator and is used to attenuate the acquired communication signal to obtain an attenuated communication signal, and send the attenuated communication signal to the first power divider.

[0079] The signal combining execution module 503 is configured in the first power divider and is used to combine multiple attenuated communication signals to send the combined attenuated communication signal to the second power divider.

[0080] The signal splitting execution module 504 is configured in the second power divider and is used to split the combined attenuated communication signal so that the split attenuated communication signal is transmitted through different antennas.

[0081] The technical solution of this invention acquires a specified type of communication signal through a radio frequency remote unit and sends the communication signal to a digital attenuator via a feeder, thereby improving the reception stability of the communication signal and avoiding signal fluctuations. The digital attenuator attenuates the acquired communication signal to obtain an attenuated communication signal, which is then sent to a first power divider, improving the response speed of the signal attenuation process and enabling dynamic adjustment of signal power. The first power divider combines multiple attenuated communication signals, and a second power divider splits the combined attenuated communication signals, reducing the number of feeders between power dividers and lowering wiring complexity and feeder costs. Finally, the split attenuated communication signals are transmitted separately through different antennas, ensuring uniform signal distribution in the indoor environment.

[0082] The above-described apparatus can execute the signal strength adjustment method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the method. Technical details not described in detail in this embodiment can be found in the signal strength adjustment method provided in any embodiment of the present invention.

[0083] Example 5

[0084] In some embodiments, the signal strength modulation method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as a storage unit. In some embodiments, part or all of the computer program may be loaded and / or installed on a heterogeneous hardware accelerator via ROM and / or a communication unit. When the computer program is loaded into RAM and executed by a processor, one or more steps of the signal strength modulation method described above may be performed. Alternatively, in other embodiments, the processor may be configured to perform the signal strength modulation method by any other suitable means (e.g., by means of firmware).

[0085] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0086] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0087] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0088] To provide user interaction, the systems and techniques described herein can be implemented on a heterogeneous hardware accelerator, which includes: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the heterogeneous hardware accelerator. Other types of devices can also be used to provide user interaction; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or haptic feedback); and input from the user can be received in any form (including sound input, voice input, or haptic input).

[0089] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or middleware components (e.g., application servers), or frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0090] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0091] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0092] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A signal strength adjustment system, characterized by, The signal strength adjustment system comprises: a plurality of radio remote units, a plurality of digital attenuators, a first power divider, a second power divider and a plurality of antennas; the radio remote unit is connected to the corresponding digital attenuator, and is configured to acquire a communication signal of a specified type and send the communication signal to the digital attenuator through a feeder; the digital attenuator is connected to the first power divider, and is configured to perform attenuation processing on the acquired communication signal to obtain an attenuated communication signal and send the attenuated communication signal to the first power divider; the first power divider is connected to the second power divider, and is configured to perform combining processing on a plurality of attenuated communication signals to send a combined attenuated communication signal to the second power divider; the second power divider is connected to the plurality of antennas, and is configured to perform splitting processing on the combined attenuated communication signal to send a split attenuated communication signal through different antennas.

2. The signal strength adjustment system of claim 1, wherein, The signal strength adjustment system further comprises a fixed attenuator; the fixed attenuator is connected to the radio remote unit and the digital attenuator, and is configured to perform pre-attenuation processing on the acquired communication signal and send the pre-attenuation processed communication signal to the digital attenuator.

3. The signal strength adjustment system of claim 1, wherein, The signal strength adjustment system further comprises a serial server; the serial server is in communication connection with each of the digital attenuators and a remote control platform, and is configured to adjust an attenuation parameter of the digital attenuator according to an attenuation adjustment instruction issued by the remote control platform.

4. The signal strength adjustment system of claim 3, wherein, The serial server is further configured to, according to an attenuation switching instruction, access a communication signal output by a current radio remote unit to a standby digital attenuator to perform attenuation processing on the communication signal output by the current radio remote unit through the standby digital attenuator; wherein the standby digital attenuator is a common digital attenuator or a digital attenuator corresponding to another radio remote unit.

5. The signal strength adjustment system of claim 3, wherein, The serial server is specifically configured to, according to the attenuation adjustment instruction issued by the remote control platform, perform power compensation on the digital attenuator based on a compensation mapping table or an iterative compensation rule.

6. The signal strength adjustment system of claim 1, wherein, The second power divider is connected to each of the antennas through feeders of the same length, and each of the antennas is distributed at different indoor positions, and the distance between any two antennas is greater than or equal to a preset distance threshold.

7. A signal strength adjustment method, characterized by, The signal strength adjustment system comprises: a radio remote unit configured to acquire a communication signal of a specified type and send the communication signal to a digital attenuator through a feeder; the digital attenuator configured to perform attenuation processing on the acquired communication signal to obtain an attenuated communication signal and send the attenuated communication signal to a first power divider; the first power divider configured to perform combining processing on a plurality of attenuated communication signals to send a combined attenuated communication signal to a second power divider; the second power divider configured to perform splitting processing on the combined attenuated communication signal to send a split attenuated communication signal through different antennas.

8. A signal strength adjustment apparatus, characterized by, The signal strength adjustment system comprises: a signal transmission execution module configured in a radio remote unit and configured to acquire a communication signal of a specified type and send the communication signal to a digital attenuator through a feeder; A signal attenuation execution module is configured in the digital attenuator, used for performing attenuation processing on the acquired communication signal to acquire an attenuated communication signal, and sending the attenuated communication signal to the first power distributor; A signal combination execution module is configured in the first power distributor, used for performing combination processing on the multiple attenuated communication signals to send a combined attenuated communication signal to the second power distributor; A signal distribution execution module is configured in the second power distributor, used for performing distribution processing on the combined attenuated communication signal to send a distributed attenuated communication signal through different antennas respectively.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer instructions, which are used to make the processor execute the signal strength adjustment method in claim 7.

10. A computer program product, comprising a computer program, which is used to make the processor execute the signal strength adjustment method in claim 7.

Images