A multi-frequency multi-channel communication system, alarm processing method and device

Abstract

The present invention discloses a multi-frequency multi-channel communication system, an alarm processing method and a device, wherein the multi-frequency multi-channel communication system comprises: an antenna for transmitting and receiving signals, an uplink module for combining uplink signals of different frequency bands, and a downlink module for combining downlink signals of different frequency bands. The uplink module and the downlink module of the present invention are provided with a frequency band combiner, through which the required communication frequency band can be switched according to the network frequency band allocation of different operators, so as to realize the frequency band selectivity and channel independent control of the circuit channel of the multi-frequency multi-channel communication system.

Description

Background Art

[0002] With the development of science and technology, smart terminals and smart devices have become increasingly popular. By interacting with communication base stations or communication systems, smart terminals can realize different application functions, bringing a lot of convenience to people's lives.

[0003] In order to make full use of communication channels, expand communication capacity and reduce communication costs, many communication systems use multiplexing, that is, transmitting multiple information simultaneously on the same transmission path. Multiplexing is divided into frequency division, time division and code division multiplexing. In analog communication systems, the divided available frequency bands are allocated to each information and share a common transmission medium, which is called frequency division multiplexing. In digital communication systems, each information is allocated a time slot (a short period of time), and each channel takes turns to occupy the time slot, which is called time division multiplexing. Code division multiplexing is to multiply each input signal with a code sequence waveform generated by an orthogonal code waveform generator at the transmitting end, and then add them to obtain multiple signals.

[0004] However, the above-mentioned multiplexed communication system has the following calculation problems: since operators build different frequency band network coverage according to the network allocation frequency band, corresponding equipment for different frequency bands is required, which increases the construction difficulty and construction cost; as the frequency band increases, multiple different antennas need to be set up to receive signals in different frequency bands, which not only makes the entire communication system and signal processing circuit structure complicated, but also processes multiple signals in different frequency bands at the same time, which is prone to interference, thereby reducing the stability of communication. Summary of the invention

[0005] The present invention provides a multi-frequency multi-channel communication system, an alarm processing method and a device, and the system can solve one or more of the above-mentioned technical problems.

[0006] A first aspect of an embodiment of the present invention provides a multi-frequency multi-channel communication system, the multi-frequency multi-channel communication system comprising: an antenna for transmitting and receiving signals, an uplink module for combining uplink signals of different frequency bands, and a downlink module for combining downlink signals of different frequency bands;

[0007] The uplink module includes: a plurality of uplink combining units, an uplink channel combiner, a first uplink attenuator, a first uplink RF frequency band amplifier and a first uplink frequency band combiner, each of the uplink combining units is respectively connected to the uplink channel combiner, the uplink channel combiner, the first uplink attenuator, the first uplink RF frequency band amplifier and the first uplink frequency band combiner are connected in sequence;

[0008] The downlink module includes: a first downlink frequency band combiner, a downlink frequency band filter, a first downlink radio frequency band amplifier, a first downlink attenuator, a downlink channel combiner and a plurality of downlink combining units. The first downlink frequency band combiner, the downlink frequency band filter, the first downlink radio frequency band amplifier, the first downlink attenuator and the downlink channel combiner are connected in sequence, and the downlink channel combiner is respectively connected to each of the downlink combining units.

[0009] In a possible implementation manner of the first aspect, the uplink combining unit includes: a second uplink frequency band combiner, an uplink frequency band filter, a second uplink radio frequency band amplifier, and a second uplink attenuator connected in sequence.

[0010] In a possible implementation of the first aspect, the uplink module further includes: an uplink input detector and an uplink output detector;

[0011] The uplink input detector is connected to the second uplink RF frequency band amplifier;

[0012] The uplink output detector is connected to the first uplink radio frequency band amplifier.

[0013] In a possible implementation manner of the first aspect, the downlink combining unit includes: a second downlink attenuator and a second downlink radio frequency band amplifier connected in sequence.

[0014] In a possible implementation of the first aspect, the downlink module further includes: a downlink input detector and a downlink output detector;

[0015] The downlink input detector is connected to the first downlink RF frequency band amplifier;

[0016] The downlink output detector is connected to the second downlink radio frequency band amplifier.

[0017] In a possible implementation of the first aspect, the downlink module further includes: a fault processing circuit and an alarm output circuit connected in sequence;

[0018] The fault processing circuit is connected to the downlink output detector.

[0019] A second aspect of an embodiment of the present invention provides an alarm processing method based on a multi-frequency multi-channel communication system, the method comprising:

[0020] Before sending a downlink signal, obtaining a signal power value of the downlink signal;

[0021] If the signal power value is less than the first preset power threshold, amplify the downlink signal and detect the amplified power value corresponding to the amplified signal;

[0022] If the amplified power value is less than a second preset power threshold, an alarm process is triggered, wherein the first preset power threshold and the second preset power threshold are set according to the area where the multi-frequency multi-channel communication system is located, and the first preset power threshold is less than or equal to the second preset power threshold.

[0023] A third aspect of an embodiment of the present invention provides an alarm processing device based on a multi-frequency multi-channel communication system, the device comprising:

[0024] A power acquisition module, used for acquiring a signal power value of a downlink signal before sending the downlink signal;

[0025] A signal amplification module, configured to amplify the downlink signal if the signal power value is less than a first preset power threshold, and detect an amplified power value corresponding to the amplified signal;

[0026] An alarm processing module is used to trigger alarm processing if the amplified power value is less than a second preset power threshold, wherein the first preset power threshold and the second preset power threshold are set according to the area of ​​the area where the multi-frequency multi-channel communication system is located, and the first preset power threshold is less than or equal to the second preset power threshold.

[0027] Compared with the prior art, the embodiment of the present invention provides a multi-frequency multi-channel communication system, alarm processing method and device, and its beneficial effect is that: the uplink module and the downlink module of the present invention are provided with a frequency band combiner, and the required communication frequency band can be switched according to the network frequency band allocation of different operators through the frequency band combiner, so as to realize the multi-frequency multi-channel communication system circuit channel frequency band selectivity and channel independent control; the present invention can also obtain the signal power value of the downlink signal before sending the downlink signal, and if the signal is still less than the power threshold after amplification, the alarm processing is triggered. The present invention can prompt the user to process the area through alarm processing to increase the communication base station and improve the stability of communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a multi-frequency multi-channel communication system provided by one embodiment of the present invention;

[0029] Figure 2 is a structural schematic diagram of an uplink module provided by an embodiment of the present invention;

[0030] Figure 3 It is a structural schematic diagram of an uplink combining unit provided by an embodiment of the present invention;

[0031] Figure 4 is a structural diagram of a downlink module provided by an embodiment of the present invention;

[0032] Figure 5 It is a structural schematic diagram of a downlink combining unit provided by an embodiment of the present invention;

[0033] Figure 6 It is a flowchart of an alarm processing method based on a multi-frequency multi-channel communication system provided by an embodiment of the present invention;

[0034] Figure 7 It is a structural diagram of an alarm processing device based on a multi-frequency multi-channel communication system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In order to solve the above problems, a multi-frequency multi-channel communication system provided by an embodiment of the present application will be introduced and explained in detail through the following specific embodiments.

[0037] Reference Figure 1 , showing a schematic structural diagram of a multi-frequency multi-channel communication system provided by an embodiment of the present invention.

[0038] Wherein, as an example, the multi-frequency multi-channel communication system may include:

[0039] An antenna for sending and receiving signals, an uplink module for combining uplink signals of different frequency bands, and a downlink module for combining downlink signals of different frequency bands.

[0040] Specifically, the antenna can be used to send and receive signals, specifically can receive air interface signals, and is connected to an input port of a multi-frequency multi-channel communication system circuit device via a coaxial cable.

[0041] The uplink module can receive the signal of the terminal in the coverage area, amplify the signal through the required frequency band, and finally send it to the base station through the air interface antenna of the device. The downlink module can be used to receive the air interface signal through the antenna, amplify the signal through the required frequency band, and send it to the coverage area through the coverage antenna of the device. It has automatic level control and gain adaptive control functions.

[0042] Reference Figure 2-3 , respectively showing a schematic diagram of the structure of an uplink module provided by an embodiment of the present invention and a schematic diagram of the structure of an uplink combining unit provided by an embodiment of the present invention.

[0043] In one embodiment, the uplink module includes: a plurality of uplink combining units, an uplink channel combiner, a first uplink attenuator, a first uplink RF frequency band amplifier and a first uplink frequency band combiner, each of the uplink combining units is respectively connected to the uplink channel combiner, and the uplink channel combiner, the first uplink attenuator, the first uplink RF frequency band amplifier and the first uplink frequency band combiner are connected in sequence.

[0044] Reference Figure 2-3 The uplink combining unit includes: a second uplink frequency band combiner, an uplink frequency band filter, a second uplink RF frequency band amplifier and a second uplink attenuator connected in sequence.

[0045] Optionally, the uplink module further includes: an uplink input detector and an uplink output detector;

[0046] The uplink input detector is connected to the second uplink RF frequency band amplifier;

[0047] The uplink output detector is connected to the first uplink radio frequency band amplifier.

[0048] The uplink module of the present invention can receive signals from terminals in the coverage area. The RF band filter amplifies the signal through the required frequency band and sends it to the base station through the air interface antenna of the device. At the same time, the uplink module of the present invention also has automatic level control and does not affect the base station background noise.

[0049] In addition, the bandpass filter passes the required frequency band, is amplified by the amplifier, and the detector outputs the detection signal, which is connected to the branch control circuit. Each branch RF channel is connected to the uplink common RF channel through a combiner, and the signal is output through the common amplifier and the final amplifier, and the final detector outputs the detection signal.

[0050] Reference Figure 4-5 , respectively showing a schematic diagram of the structure of a downlink module provided in an embodiment of the present invention and a schematic diagram of the structure of a downlink combining unit provided in an embodiment of the present invention.

[0051] In one embodiment, the downlink module includes: a first downlink frequency band combiner, a downlink frequency band filter, a first downlink radio frequency band amplifier, a first downlink attenuator, a downlink channel combiner and a plurality of downlink combining units, the first downlink frequency band combiner, the downlink frequency band filter, the first downlink radio frequency band amplifier, the first downlink attenuator and the downlink channel combiner are connected in sequence, and the downlink channel combiner is respectively connected to each of the downlink combining units.

[0052] Reference Figure 2-3 The downlink combining unit includes: a second downlink attenuator and a second downlink RF band amplifier connected in sequence.

[0053] Optionally, the downlink module further includes: a downlink input detector and a downlink output detector;

[0054] The downlink input detector is connected to the first downlink RF frequency band amplifier;

[0055] The downlink output detector is connected to the second downlink radio frequency band amplifier.

[0056] Optionally, the downlink module further includes: a fault processing circuit and an alarm output circuit connected in sequence;

[0057] The fault processing circuit is connected to the downlink output detector.

[0058] The downlink module of the present invention receives air interface signals, and the RF frequency band filter amplifies the signal through the required frequency band, and sends it to the coverage area through the coverage antenna of the equipment. It has automatic level control and gain adaptive control functions, and can detect the power of the RF signal through the power detection circuit. After detection and amplification, the voltage corresponding to the power level is obtained and sent to the monitoring circuit for processing, so as to ensure that the repeater outputs at the rated power and protect the equipment from overheating and overloading.

[0059] It should be noted that the present invention can also automatically adjust the uplink and downlink gains of the repeater according to different application scenarios, adjust the output noise level of the repeater to prevent interference with the base station and balance the noise when the repeaters are connected in series and parallel.

[0060] The bandpass filter of the downlink module of the present invention passes through the required frequency band, is amplified by the amplifier, and the common detector outputs a detection signal, which is connected to the common control circuit. The downlink common radio frequency channel is connected to each branch radio frequency channel through a splitter, and outputs a signal through each branch amplifier and the final amplifier, and the final detector outputs a detection signal, which is connected to the monitoring processing circuit and the alarm output circuit.

[0061] When there is a strong signal, the power information is detected and the corresponding voltage is output. The voltage is sent to the monitoring process. The MCU obtains the corresponding power value according to the voltage information and adjusts the link according to the design requirements of the link, so that the power reaches the expected power of the link. When the isolation of the coverage system is insufficient, the equipment can self-excite the alarm and shut down the signal. And through the above circuit, according to the network frequency band allocation of different operators, the required communication frequency band is switched to realize the multi-frequency multi-channel communication system circuit channel band selectivity and channel independent control.

[0062] In addition, the uplink and downlink of each channel of the entire system can also control different frequency band switching, and each channel can be independently controlled to be on or off.

[0063] In actual application, in the wireless coverage scenario of elevators, the coverage antenna is connected to the output port of the multi-frequency and multi-channel communication system circuit equipment through coaxial cable to provide wireless signal coverage; in wireless coverage scenarios such as offices and underground parking lots, the public input port of the extension unit is connected to the output port of the multi-frequency and multi-channel communication system circuit equipment through coaxial cable, and multiple remote coverage devices are connected to the branch output port of the extension unit through coaxial cable, and the coverage antenna is connected to the output ports of multiple remote coverage devices to provide wireless signal coverage.

[0064] The access antenna is used as the signal source for the wireless access of the system. The access antenna receives the air interface signal transmitted by the base station, selects the frequency and amplifies it through the downlink of the device, and then transmits the signal to the coverage area through the coverage antenna, and the terminal device receives the signal; the coverage antenna receives the device transmission signal of the terminal in the coverage area, selects the frequency and amplifies it through the uplink of the device, and then transmits the signal to the base station through the access antenna, realizing the interaction between the base station and the terminal.

[0065] In this embodiment, the embodiment of the present invention provides a multi-frequency multi-channel communication system, and its beneficial effect is that: the uplink module and the downlink module of the present invention are provided with a frequency band combiner, through which the required communication frequency band can be switched according to the network frequency band allocation of different operators, thereby realizing the circuit channel frequency band selectivity and channel independent control of the multi-frequency multi-channel communication system.

[0066] Reference Figure 6 , showing a flow chart of an alarm processing method based on a multi-frequency multi-channel communication system provided by an embodiment of the present invention.

[0067] In one embodiment, the alarm processing method based on a multi-frequency multi-channel communication system is applicable to the multi-frequency multi-channel communication system as described in the above embodiment.

[0068] Wherein, as an example, the alarm processing method based on the multi-frequency multi-channel communication system may include:

[0069] S11. Before sending a downlink signal, obtain a signal power value of the downlink signal.

[0070] In one embodiment, an access antenna of a multi-frequency multi-channel communication system may be used to receive an uplink signal, which may be converted into a downlink signal after being processed.

[0071] In order to ensure that the signal can be received smoothly by the terminal and avoid interruption of communication with the terminal, in one embodiment, before sending the downlink signal, the power value of the downlink signal to be sent is obtained to obtain the signal power value.

[0072] S12: If the signal power value is less than a first preset power threshold, amplify the downlink signal and detect the amplified power value corresponding to the amplified signal.

[0073] It can be determined whether the signal power value is less than the first preset power threshold. If the signal power value is less than the first preset power threshold, it means that the signal power value is low and the signal is poor, and the communication of the terminal to be connected may be interrupted.

[0074] The RF band amplifier of the downlink module of the multi-frequency multi-channel communication system can be used to amplify the downlink signal to increase the power of the signal.

[0075] In order to determine whether the amplified signal meets the communication requirement, the power value of the amplified signal may be acquired to obtain an amplified power value.

[0076] S13. If the amplified power value is less than a second preset power threshold, an alarm process is triggered, wherein the first preset power threshold and the second preset power threshold are set according to the area where the multi-frequency multi-channel communication system is located, and the first preset power threshold is less than or equal to the second preset power threshold.

[0077] In one embodiment, it can be determined whether the amplified power value is less than a second preset power threshold. If the amplified power value is less than the second preset power threshold, it means that the amplified signal still cannot meet the communication requirements. The alarm circuit of the multi-frequency multi-channel communication system can be called to trigger alarm processing, which can specifically send an alarm signal or report communication interruption processing to the background.

[0078] Optionally, the alarm processing may also be information prompt processing to encourage the user to add communication base stations in the area to meet the communication demand, or to adjust the power of the system so that the signal meets the communication requirements.

[0079] In one embodiment, the first preset power threshold is less than or equal to the second preset power threshold.

[0080] The first preset power threshold and the second preset power threshold may both be set according to the area where the multi-frequency multi-channel communication system is located.

[0081] In one embodiment, the multi-frequency multi-channel communication system may be provided with an ultrasonic sensor, which may send a detection pulse signal to the surrounding area, and then receive a returned feedback pulse signal, and then detect the distance between the multi-frequency multi-channel communication system and the surrounding wall through the feedback pulse signal, and then determine the area of ​​the area where the multi-frequency multi-channel communication system is located according to the detected distance. Finally, the first preset power threshold and the second preset power threshold are set according to the area.

[0082] In one implementation, the operation of detecting the distance may include the following steps:

[0083] The first step is to encode the pulse signal to be sent into a coded signal group according to a preset sequence after obtaining the pulse signal to be sent.

[0084] The second step is to send a coded signal group to surrounding objects with the multi-frequency multi-channel communication system as the center, and obtain a rebound signal group rebounded by the surrounding objects after receiving the coded signal group.

[0085] The third step is to determine the distance between the multi-frequency multi-channel communication system and surrounding objects based on the rebound signal group.

[0086] For the first step, the pulse signal is an ultrasonic signal sent by an ultrasonic sensor. By performing sequence editing on the ultrasonic signal, the ultrasonic signal can be distinguished from other signals, avoiding the situation where other interference signals are used in subsequent detection, thereby achieving the effect of distinction and anti-interference.

[0087] Since the sensor may send pulse signals of multiple frequencies to detect the distance of different objects, in order to improve the processing efficiency of multi-frequency signals, you can perform the following operations:

[0088] S21. Divide the pulse signal to be sent into a plurality of divided frequency signals by using a preset frequency divider, wherein the frequencies of the plurality of divided frequency signals are the same or different from each other.

[0089] Specifically, a pulse signal transmitted by an ultrasonic sensor may be obtained, and the pulse signal may include multiple frequencies. The pulse signal may be sent to a frequency divider, and the frequency divider divides the pulse signal into several divided frequency signals according to the frequency, and each divided frequency signal corresponds to a frequency.

[0090] For example, it is divided into five divided frequency signals, each divided frequency signal is 100kHz, 200kHz, 300kHz, 400kHz and 500kHz.

[0091] S22. Use a preset FSK modulator to encode each frequency-divided signal into a baseband symbol with a preset sequence to obtain a plurality of baseband symbols.

[0092] In actual operation, each divided frequency signal can be input into the FSK modulator respectively, and the FSK modulator can modulate each divided frequency signal. Finally, the FSK modulator can output the corresponding baseband code element according to the frequency of the divided frequency signal, thereby obtaining several baseband code elements.

[0093] S23. Combine several baseband code elements to form a coded signal group.

[0094] Next, a number of baseband symbols may be concatenated and combined, and the concatenated baseband symbols are added to the pulse signal to form a corresponding coded signal group.

[0095] For the second step, the reflected signal group is received and the ultrasonic sensor can be controlled to send the coded signal group to the surrounding objects with the car as the center.

[0096] In actual operation, it can be sent once at regular intervals.

[0097] After receiving the coded signal group, the surrounding objects can reflect the coded signal group due to their own material properties, thereby forming a rebound signal.

[0098] Since the coded signal group contains multiple signals of different frequencies, and different frequencies can be used to detect different objects, in actual operation, multiple different objects can bounce back at the same time after receiving signals of different frequencies, thus forming a rebound signal group. The ultrasonic sensor can receive the rebound signal group bounced back by surrounding objects.

[0099] In the third step, the distance between the multi-frequency multi-channel communication system and the surrounding objects is determined based on the rebound signal group.

[0100] The bounce signal group can be used to calculate the distance between the multi-frequency multi-channel communication system and the surrounding objects to determine the distance between the multi-frequency multi-channel communication system and the surrounding objects, thereby determining the area where the multi-frequency multi-channel communication system is located.

[0101] In order to accurately calculate the distance, in one embodiment, the third step may include the following sub-steps:

[0102] S31, obtaining the sending time and receiving time of the pulse.

[0103] Specifically, the sending time can be recorded when sending a coded signal group, and the receiving time can be recorded when obtaining a rebound signal group.

[0104] S32. Based on the TOF principle, the distance between the multi-frequency multi-channel communication system and surrounding objects is calculated according to the sending time and the receiving time.

[0105] The ultrasonic time-of-flight TOF calculation method is used, and then the distance between the multi-frequency multi-channel communication system and the surrounding objects is calculated according to the sending time and the receiving time.

[0106] After calculation, multiple distances can be obtained, and the distance with the largest value can be selected from the multiple distances. Then, the area of ​​a circle is calculated with the multi-frequency multi-channel communication system as the center and the distance with the largest value as the radius to obtain the area of ​​the region.

[0107] Then, the first preset power threshold and the second preset power threshold are set according to the size of the area.

[0108] The specific setting method may be based on a certain ratio, for example, Y=AX-X.

[0109] Among them, Y is the power threshold, A is the set constant, and X is the area of ​​the region.

[0110] In this embodiment, the embodiment of the present invention provides an alarm processing method based on a multi-frequency multi-channel communication system, and its beneficial effect is that before sending the downlink signal, the present invention obtains the signal power value of the downlink signal, and if the signal is still less than the power threshold after amplification, the alarm processing is triggered. The present invention can prompt the user to process the area through the alarm processing to increase the communication base station and improve the stability of communication.

[0111] The embodiment of the present invention also provides an alarm processing device based on a multi-frequency multi-channel communication system, see Figure 7 , showing a schematic structural diagram of an alarm processing device based on a multi-frequency multi-channel communication system provided by an embodiment of the present invention.

[0112] Wherein, as an example, the alarm processing device based on the multi-frequency multi-channel communication system may include:

[0113] The power acquisition module 201 is used to acquire the signal power value of the downlink signal before sending the downlink signal;

[0114] The signal amplification module 202 is used to amplify the downlink signal if the signal power value is less than a first preset power threshold, and detect the amplified power value corresponding to the amplified signal;

[0115] The alarm processing module 203 is used to trigger alarm processing if the amplified power value is less than a second preset power threshold, wherein the first preset power threshold and the second preset power threshold are set according to the area of ​​the area where the multi-frequency multi-channel communication system is located, and the first preset power threshold is less than or equal to the second preset power threshold.

[0116] Those skilled in the art can clearly understand that, for the sake of convenience and brevity of description, the specific working process of the device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0117] Furthermore, an embodiment of the present application also provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the alarm processing method based on the multi-frequency multi-channel communication system as described in the above embodiment is implemented.

[0118] Furthermore, an embodiment of the present application also provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the alarm processing method based on the multi-frequency and multi-channel communication system as described in the above embodiment.

[0119] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An alarm processing method based on a multi-frequency multi-channel communication system, characterized in that: The multi-frequency multi-channel communication system comprises: an antenna for transmitting and receiving signals, an uplink module for combining uplink signals of different frequency bands, and a downlink module for combining downlink signals of different frequency bands; The uplink module includes: a plurality of uplink combining units, an uplink channel combiner, a first uplink attenuator, a first uplink RF frequency band amplifier and a first uplink frequency band combiner, each of the uplink combining units is respectively connected to the uplink channel combiner, the uplink channel combiner, the first uplink attenuator, the first uplink RF frequency band amplifier and the first uplink frequency band combiner are connected in sequence; The downlink module includes: a first downlink frequency band combiner, a downlink frequency band filter, a first downlink radio frequency band amplifier, a first downlink attenuator, a downlink channel combiner and a plurality of downlink combining units, wherein the first downlink frequency band combiner, the downlink frequency band filter, the first downlink radio frequency band amplifier, the first downlink attenuator and the downlink channel combiner are connected in sequence, and the downlink channel combiner is connected to each of the downlink combining units respectively; The method comprises: Before sending a downlink signal, obtaining a signal power value of the downlink signal; If the signal power value is less than the first preset power threshold, amplify the downlink signal and detect the amplified power value corresponding to the amplified signal; If the amplified power value is less than a second preset power threshold, an alarm process is triggered, the first preset power threshold and the second preset power threshold are set according to the area of ​​the area where the multi-frequency multi-channel communication system is located, and the first preset power threshold is less than or equal to the second preset power threshold; The first preset power threshold and the second preset power threshold are set according to the area of ​​the area where the multi-frequency multi-channel communication system is located; The multi-frequency multi-channel communication system is provided with an ultrasonic sensor, which sends a detection pulse signal to the surrounding area, receives a returned feedback pulse signal, detects the distance between the multi-frequency multi-channel communication system and the surrounding wall through the feedback pulse signal, and determines the area of ​​the area where the multi-frequency multi-channel communication system is located according to the detected distance; The operation of detecting the distance may include the following steps: The first step is to encode the pulse signal to be sent into a coded signal group according to a preset sequence after obtaining the pulse signal to be sent; The second step is to send a coded signal group to surrounding objects with the multi-frequency multi-channel communication system as the center, and obtain a rebound signal group rebounded by the surrounding objects after receiving the coded signal group; The third step is to determine the distance between the multi-frequency multi-channel communication system and surrounding objects based on the rebound signal group.

2. The alarm processing method based on the multi-frequency multi-channel communication system according to claim 1 is characterized in that: The uplink combining unit comprises: a second uplink frequency band combiner, an uplink frequency band filter, a second uplink radio frequency band amplifier and a second uplink attenuator which are connected in sequence.

3. The alarm processing method based on the multi-frequency multi-channel communication system according to claim 2 is characterized in that: The uplink module also includes: an uplink input detector and an uplink output detector; The uplink input detector is connected to the second uplink RF frequency band amplifier; The uplink output detector is connected to the first uplink radio frequency band amplifier.

4. The alarm processing method based on the multi-frequency multi-channel communication system according to claim 1, characterized in that: The downlink combining unit includes: a second downlink attenuator and a second downlink radio frequency band amplifier connected in sequence.

5. The alarm processing method based on the multi-frequency multi-channel communication system according to claim 4 is characterized in that: The downlink module also includes: a downlink input detector and a downlink output detector; The downlink input detector is connected to the first downlink RF frequency band amplifier; The downlink output detector is connected to the second downlink radio frequency band amplifier.

6. The alarm processing method based on the multi-frequency multi-channel communication system according to claim 5, characterized in that: The downlink module also includes: a fault processing circuit and an alarm output circuit connected in sequence; The fault processing circuit is connected to the downlink output detector.

7. An alarm processing device based on a multi-frequency multi-channel communication system, characterized in that: The multi-frequency multi-channel communication system comprises: an antenna for transmitting and receiving signals, an uplink module for combining uplink signals of different frequency bands, and a downlink module for combining downlink signals of different frequency bands; The uplink module includes: a plurality of uplink combining units, an uplink channel combiner, a first uplink attenuator, a first uplink RF frequency band amplifier and a first uplink frequency band combiner, each of the uplink combining units is respectively connected to the uplink channel combiner, the uplink channel combiner, the first uplink attenuator, the first uplink RF frequency band amplifier and the first uplink frequency band combiner are connected in sequence; The downlink module includes: a first downlink frequency band combiner, a downlink frequency band filter, a first downlink radio frequency band amplifier, a first downlink attenuator, a downlink channel combiner and a plurality of downlink combining units, wherein the first downlink frequency band combiner, the downlink frequency band filter, the first downlink radio frequency band amplifier, the first downlink attenuator and the downlink channel combiner are connected in sequence, and the downlink channel combiner is connected to each of the downlink combining units respectively; The device comprises: A power acquisition module, used for acquiring a signal power value of a downlink signal before sending the downlink signal; A signal amplification module, configured to amplify the downlink signal if the signal power value is less than a first preset power threshold, and detect an amplified power value corresponding to the amplified signal; an alarm processing module, configured to trigger an alarm process if the amplified power value is less than a second preset power threshold, wherein the first preset power threshold and the second preset power threshold are set according to the area of ​​the area where the multi-frequency multi-channel communication system is located, and the first preset power threshold is less than or equal to the second preset power threshold; The first preset power threshold and the second preset power threshold are set according to the area of ​​the area where the multi-frequency multi-channel communication system is located; The multi-frequency multi-channel communication system is provided with an ultrasonic sensor, which sends a detection pulse signal to the surrounding area, receives a returned feedback pulse signal, detects the distance between the multi-frequency multi-channel communication system and the surrounding wall through the feedback pulse signal, and determines the area of ​​the area where the multi-frequency multi-channel communication system is located according to the detected distance; The operation of detecting distance includes the following steps: The first step is to encode the pulse signal to be sent into a coded signal group according to a preset sequence after obtaining the pulse signal to be sent; The second step is to send a coded signal group to surrounding objects with the multi-frequency multi-channel communication system as the center, and obtain a rebound signal group rebounded by the surrounding objects after receiving the coded signal group; The third step is to determine the distance between the multi-frequency multi-channel communication system and surrounding objects based on the rebound signal group.

8. An electronic device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the alarm processing method based on the multi-frequency multi-channel communication system as described in any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the alarm processing method based on a multi-frequency and multi-channel communication system as described in any one of claims 1 to 6.

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