Interphone frequency writing system through IP network

Abstract

The invention discloses a frequency writing system for an interphone through an IP network, and relates to the technical field of mobile communication. An interference determination module; an IP network segmentation module; a channel acquisition module; a frequency acquisition module; the interphone modeling module is used for classifying the interphones to obtain an edge interphone and an internal interphone; the channel distribution module is used for distributing the communication channels in the grid area to the interphones in the grid area; the frequency distribution module is used for distributing the non-interference frequency in the grid area to the interphones in the grid area; and an interphone operation module. By arranging the frequency acquisition module, the interphone modeling module, the channel allocation module and the frequency allocation module, the frequency use of the whole interphone is regulated and controlled, channel conflict and interference are avoided, non-interference frequency is used for frequency allocation, and the influence of the environment on transmission is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of mobile communications, and in particular to a frequency writing system for an intercom via an IP network. Background Art

[0002] Intercoms have evolved from early screenless and keyboardless intercoms to intelligent intercoms with screens, keyboards, and even touch screens. Frequency programming methods are also constantly developing and improving. However, now is an era of unprecedented development of science and technology. Traditional intercom frequency programming technology can no longer meet the current era of pursuit of speed, efficiency, and intelligence. Intercom frequency programming is to set and modify communication parameters such as frequency through the keyboard on the intercom or a handheld computer, so as to enhance the intercom communication signal and improve the call quality.

[0003] When multiple walkie-talkies are transmitting, channel conflicts and interference are likely to occur. At the same time, the complex and changing environment will also affect the quality of the signal. Therefore, the quality and stability of the signal need to be improved. Summary of the invention

[0004] In order to solve the above technical problems, a system for writing frequency to walkie-talkies through an IP network is provided. This technical solution solves the problem raised in the above background technology that channel conflicts and interferences are likely to occur when multiple walkie-talkies are transmitting. At the same time, the complex and changeable environment will also affect the quality of the signal. Therefore, the quality and stability of the signal need to be improved.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A system for writing frequency to an intercom via an IP network, comprising:

[0007] A location determination module, wherein the location determination module determines a usage location of at least one intercom based on a location where at least one intercom is connected to an IP network;

[0008] An interference determination module, the interference determination module determines a maximum distance between the two walkie-talkies at which signal interference exists as a target interference distance, wherein the signal interference refers to interference caused by the two walkie-talkies using the same frequency for signal transmission;

[0009] An IP network segmentation module, wherein the IP network segmentation module evenly divides the IP network coverage area into at least one grid area, and the side length of each grid area is greater than a preset multiple of the target interference distance;

[0010] A channel acquisition module, wherein the channel acquisition module acquires all channels in the grid area, obtains at least one communication channel, and pairs the communication channel in the grid area with the grid area;

[0011] A frequency acquisition module, wherein the frequency acquisition module determines at least one receiving and transmitting frequency that is not interfered by the environment in the grid area as a non-interference frequency, and pairs the non-interference frequency with the grid area;

[0012] A walkie-talkie modeling module, wherein the walkie-talkie modeling module forms a suspected walkie-talkie group of walkie-talkies, and classifies the walkie-talkies based on the suspected walkie-talkie group to obtain edge walkie-talkies and internal walkie-talkies;

[0013] A channel allocation module, which allocates communication channels within the grid area to intercoms within the grid area;

[0014] A frequency allocation module, wherein the frequency allocation module allocates non-interference frequencies within the grid area to the intercoms within the grid area;

[0015] An intercom operation module, wherein the intercom operation module performs signal transmission according to the allocated communication channel and non-interference frequency.

[0016] Preferably, the interference determination module determines the maximum distance between the two intercoms at which signal interference exists as a target interference distance, including the following steps:

[0017] Pre-acquire a noise ratio of an environment to a signal transmission as an environment noise ratio;

[0018] generating at least one sample audio, the sample audio being different from each other, and distributing the sample audio to the intercom;

[0019] Based on at least one intercom connected to the IP network, at least one intercom pairing group is formed, wherein the intercom pairing group is composed of two of the at least one intercom, and the at least one intercom pairing group includes all binary combinations of the at least one intercom;

[0020] Using one of the at least one intercom pairing group as a characteristic intercom pairing group;

[0021] The characteristic walkie-talkie pairing group uses the same frequency to transmit the corresponding sample audio, and the other walkie-talkie pairing groups do not transmit signals;

[0022] The noise ratio in the characteristic walkie-talkie pairing group is counted as the characteristic noise ratio. When the result of subtracting the ambient noise ratio from the characteristic noise ratio is greater than a preset value, the distance of the walkie-talkies in the characteristic walkie-talkie pairing group is recorded as the characteristic distance.

[0023] When the characteristic intercom pairing group traverses at least one intercom pairing group, at least one characteristic distance is obtained;

[0024] The maximum value of at least one characteristic distance is used as the target interference distance.

[0025] Preferably, the IP network segmentation module evenly segments the IP network coverage area into at least one grid area, comprising the following steps:

[0026] Forming at least one grid point in the IP network coverage area, wherein the distance between adjacent grid points is a preset multiple of the target interference distance;

[0027] Adjacent grid points are connected by using line segments to obtain at least one grid area.

[0028] Preferably, the frequency acquisition module determines at least one receiving and transmitting frequency that is not interfered by the environment in the grid area as a non-interference frequency, including the following steps:

[0029] Dividing the frequency range of signal transmission at equal intervals to obtain at least one frequency point;

[0030] The frequency at the frequency point is used to transmit signals in the grid area to obtain a signal-to-noise ratio of the signal transmission. When the signal-to-noise ratio of the signal transmission is less than a preset value, the frequency at the frequency point is used as a non-interference frequency.

[0031] Preferably, the intercom modeling module forms a suspected intercom group of intercoms, including the following steps:

[0032] The intercoms whose distance from the intercom is not greater than the target interference distance are obtained and summarized to obtain a suspected intercom group of the intercom.

[0033] Preferably, the classifying of intercoms to obtain edge intercoms and internal intercoms comprises the following steps:

[0034] When the line connecting the intercom and the intercoms in the corresponding suspected intercom group intersects with the boundary of the grid area, the intercom is regarded as an edge intercom;

[0035] When the line connecting the intercom and the intercoms in the corresponding suspected intercom group do not intersect with the boundary of the grid area, the intercom is regarded as an internal intercom.

[0036] Preferably, the channel allocation module allocates the communication channels in the grid area to the intercoms in the grid area, including the following steps:

[0037] Randomly assigning communication channels within the grid area to edge intercoms within the grid area to obtain at least one first channel assignment pattern;

[0038] In the first channel allocation mode, it is determined whether the communication channels used by the two edge intercoms whose distance does not exceed the target interference distance are consistent. If so, the count value is increased by one and the count value is initially 0. If not, no processing is performed;

[0039] Use the first channel allocation mode with the smallest count value to allocate communication channels to the edge intercom;

[0040] In the grid area, at least one identification circle is formed, the center of the identification circle coincides with the center of the grid area, and the radius difference between adjacent identification circles is the target interference distance;

[0041] At least one recognition circle divides the grid area into at least one recognition area, and calculates the average of the distances from the internal intercom in the recognition area to the center of the grid area to obtain a recognition average;

[0042] Sort the recognition regions from large to small according to the recognition mean value to obtain the recognition region sequence;

[0043] Communication channels are assigned to the internal intercoms in the identification area in sequence, and when assigning, communication channels in the grid area are randomly assigned to the internal intercoms in the identification area to obtain at least one second channel assignment pattern;

[0044] In the second channel allocation mode, it is determined whether the communication channels used by the two walkie-talkies whose allocated communication channels are not more than the target interference distance are consistent. If so, the statistical value is increased by one and the statistical value is initially 0. If not, no processing is performed;

[0045] The communication channels for the internal intercoms are allocated using the second channel allocation mode with the smallest statistical value.

[0046] Preferably, the frequency allocation module allocates the non-interference frequencies in the grid area to the intercoms in the grid area, including the following steps:

[0047] In the grid area, obtaining at least one intercom advance group, the intercom advance group consisting of two intercoms in the grid area, the distance between the intercoms in the intercom advance group does not exceed the target interference distance and uses the same communication channel;

[0048] pairing at least one non-interfering frequency belonging to the frequency range of the communication channel with the communication channel;

[0049] Randomly assigning non-interference frequencies to at least one intercom in the intercom advance group, satisfying that the non-interference frequencies are non-interference frequencies corresponding to the communication channels of the intercoms, to obtain at least one third channel assignment mode;

[0050] Counting the number of abnormal intercom advance payment groups in the third channel allocation mode as an abnormal value, the abnormal intercom advance payment group is an intercom advance payment group with the same intercom usage frequency;

[0051] Use the third channel allocation mode with the smallest outlier value to allocate frequencies to the intercoms in the intercom advance group;

[0052] In the grid area, the remaining interphones use one of the at least one non-interference frequency corresponding to the assigned communication channel as the transmission frequency.

[0053] Compared with the prior art, the present invention has the following beneficial effects:

[0054] By setting the frequency acquisition module, the walkie-talkie modeling module, the channel allocation module and the frequency allocation module, the channels and frequencies of the walkie-talkies connected to the IP network can be allocated, so that the walkie-talkies whose distance does not exceed the target interference distance can use different frequencies for signal transmission as much as possible, thereby avoiding signal interference. For the walkie-talkies whose distance is greater than the target interference distance, no interference will occur due to the large distance, so there is no need to limit the frequency. Therefore, the frequency use of the entire walkie-talkie can be regulated to avoid channel conflicts and interference. At the same time, non-interference frequencies that are less affected by the environment are determined in each grid area, and non-interference frequencies are used for frequency allocation to reduce the impact of the environment on transmission, thereby ensuring the quality and stability of the signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a structural schematic diagram of the system for writing frequency to an intercom via an IP network of the present invention;

[0056] Figure 2 A schematic diagram of a flow chart of an interference determination module of the present invention determining a maximum distance between two intercoms at which signal interference exists as a target interference distance;

[0057] Figure 3 It is a schematic diagram of a process of the IP network segmentation module of the present invention evenly segmenting an IP network coverage area into at least one grid area;

[0058] Figure 4 A schematic diagram of a flow chart of a frequency acquisition module of the present invention determining at least one receiving and transmitting frequency that is not interfered by the environment in a grid area as a non-interference frequency;

[0059] Figure 5 The present invention classifies the intercoms to obtain a flow chart of edge intercoms and internal intercoms;

[0060] Figure 6 A schematic diagram of a flow chart of the channel allocation module of the present invention allocating communication channels within a grid area to intercoms within the grid area;

[0061] Figure 7 It is a schematic diagram of a flow chart of the frequency allocation module of the present invention allocating non-interference frequencies in a grid area to intercoms in the grid area. DETAILED DESCRIPTION

[0062] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0063] Reference Figure 1 As shown, a system for programming intercom frequency through IP network includes:

[0064] A location determination module, wherein the location determination module determines a usage location of at least one intercom based on a location where at least one intercom is connected to an IP network;

[0065] An interference determination module, the interference determination module determines a maximum distance between the two walkie-talkies at which signal interference exists as a target interference distance, wherein the signal interference refers to interference caused by the two walkie-talkies using the same frequency for signal transmission;

[0066] An IP network segmentation module, wherein the IP network segmentation module evenly divides the IP network coverage area into at least one grid area, and the side length of each grid area is greater than a preset multiple of the target interference distance;

[0067] A channel acquisition module, wherein the channel acquisition module acquires all channels in the grid area, obtains at least one communication channel, and pairs the communication channel in the grid area with the grid area;

[0068] A frequency acquisition module, wherein the frequency acquisition module determines at least one receiving and transmitting frequency that is not interfered by the environment in the grid area as a non-interference frequency, and pairs the non-interference frequency with the grid area;

[0069] A walkie-talkie modeling module, wherein the walkie-talkie modeling module forms a suspected walkie-talkie group of walkie-talkies, and classifies the walkie-talkies based on the suspected walkie-talkie group to obtain edge walkie-talkies and internal walkie-talkies;

[0070] A channel allocation module, which allocates communication channels within the grid area to intercoms within the grid area;

[0071] A frequency allocation module, wherein the frequency allocation module allocates non-interference frequencies within the grid area to the intercoms within the grid area;

[0072] An intercom operation module, wherein the intercom operation module performs signal transmission according to the allocated communication channel and non-interference frequency.

[0073] In this scheme, the distance of signal interference is determined, and the maximum distance at which signal interference exists when the two walkie-talkies use the same frequency is obtained as the target interference distance. When allocating frequencies, due to the influence of environmental factors, in order to avoid environmental influences, at least one receiving and transmitting frequency that is not interfered with by the environment is obtained as a non-interference frequency. Here, not being interfered with by the environment does not mean being completely not interfered with by the environment, but being very slightly affected by the environment and can be ignored. Non-interference frequencies are used for frequency allocation. However, when walkie-talkies whose distance does not exceed the target interference distance use the same frequency, signal interference is likely to occur. Therefore, when allocating, it is best to It can ensure that walkie-talkies that do not exceed the target interference distance use different frequencies for transmission. However, due to the large number of walkie-talkies, a reasonable scheme needs to be set up to realize this technical feature. In this scheme, communication channels are first allocated. Here, the frequency ranges used by different communication channels are non-overlapping. Therefore, when the communication channels are different, the frequencies they use are different and no interference will occur. For walkie-talkies using the same communication channel, when their distance does not exceed the target interference distance, the frequencies they use are set to be almost different. Because of the limitations of actual conditions, there may not be a way to make all walkie-talkies use different frequencies.

[0074] Reference Figure 2 As shown, the interference determination module determines the maximum distance between the two walkie-talkies where signal interference exists as a target interference distance, including the following steps:

[0075] Pre-acquire a noise ratio of an environment to a signal transmission as an environment noise ratio;

[0076] generating at least one sample audio, the sample audio being different from each other, and distributing the sample audio to the intercom;

[0077] Based on at least one intercom connected to the IP network, at least one intercom pairing group is formed, wherein the intercom pairing group is composed of two of the at least one intercom, and the at least one intercom pairing group includes all binary combinations of the at least one intercom;

[0078] Using one of the at least one intercom pairing group as a characteristic intercom pairing group;

[0079] The characteristic walkie-talkie pairing group uses the same frequency to transmit the corresponding sample audio, and the other walkie-talkie pairing groups do not transmit signals;

[0080] The noise ratio in the characteristic walkie-talkie pairing group is counted as the characteristic noise ratio. When the result of subtracting the ambient noise ratio from the characteristic noise ratio is greater than a preset value, the distance of the walkie-talkies in the characteristic walkie-talkie pairing group is recorded as the characteristic distance.

[0081] When the characteristic intercom pairing group traverses at least one intercom pairing group, at least one characteristic distance is obtained;

[0082] The maximum value of at least one characteristic distance is used as the target interference distance.

[0083] The target interference distance is the critical value of interference. When the distance is greater than the target interference distance, there will be no interference in the walkie-talkie even if the same frequency is used. Therefore, based on this, different frequencies can be allocated to the walkie-talkies. It is only necessary to ensure that the frequencies of the walkie-talkies that are not more than the target interference distance are different. This can reduce the restrictions on frequency settings and make it easier to reduce signal interference.

[0084] Reference Figure 3 As shown, the IP network segmentation module evenly segments the IP network coverage area into at least one grid area, including the following steps:

[0085] Forming at least one grid point in the IP network coverage area, wherein the distance between adjacent grid points is a preset multiple of the target interference distance;

[0086] Adjacent grid points are connected by using line segments to obtain at least one grid area.

[0087] Reference Figure 4 As shown, the frequency acquisition module determines at least one receiving and transmitting frequency that is not interfered by the environment in the grid area as a non-interference frequency, including the following steps:

[0088] Dividing the frequency range of signal transmission at equal intervals to obtain at least one frequency point;

[0089] The frequency at the frequency point is used to transmit signals in the grid area to obtain a signal-to-noise ratio of the signal transmission. When the signal-to-noise ratio of the signal transmission is less than a preset value, the frequency at the frequency point is used as a non-interference frequency.

[0090] Because there are various noises in the environment, the noise conditions in each grid area are different. Therefore, it is necessary to generate a corresponding non-interference frequency for each grid area. When the non-interference frequency is used for transmission in the grid area, the environmental interference can be ignored.

[0091] The intercom modeling module forms a suspected intercom group of intercoms, including the following steps:

[0092] The intercoms whose distance from the intercom is not greater than the target interference distance are obtained and summarized to obtain a suspected intercom group of the intercom.

[0093] Reference Figure 5 As shown, classifying intercoms to obtain edge intercoms and internal intercoms includes the following steps:

[0094] When the line connecting the intercom and the intercoms in the corresponding suspected intercom group intersects with the boundary of the grid area, the intercom is regarded as an edge intercom;

[0095] When the line connecting the intercom and the intercoms in the corresponding suspected intercom group do not intersect with the boundary of the grid area, the intercom is regarded as an internal intercom.

[0096] The walkie-talkies in the grid area are classified into edge walkie-talkies and internal walkie-talkies. The edge walkie-talkies are walkie-talkies close to the edge of the grid area. First, communication channels are allocated to the edge walkie-talkies to ensure that the overlap of communication channels used by two edge walkie-talkies whose distance does not exceed the target interference distance is minimized. Therefore, when allocating frequencies, it can also ensure that the use of the same frequency is minimized.

[0097] Reference Figure 6 As shown, the channel allocation module allocates the communication channels in the grid area to the intercoms in the grid area, including the following steps:

[0098] Randomly assigning communication channels within the grid area to edge intercoms within the grid area to obtain at least one first channel assignment pattern;

[0099] Here, each random allocation method will result in a first channel allocation pattern;

[0100] In the first channel allocation mode, it is determined whether the communication channels used by the two edge intercoms whose distance does not exceed the target interference distance are consistent. If so, the count value is increased by one and the count value is initially 0. If not, no processing is performed;

[0101] Use the first channel allocation mode with the smallest count value to allocate communication channels to the edge intercom;

[0102] In the grid area, at least one identification circle is formed, the center of the identification circle coincides with the center of the grid area, and the radius difference between adjacent identification circles is the target interference distance;

[0103] At least one recognition circle divides the grid area into at least one recognition area, and calculates the average of the distances from the internal intercom in the recognition area to the center of the grid area to obtain a recognition average;

[0104] Sort the recognition regions from large to small according to the recognition mean value to obtain the recognition region sequence;

[0105] Communication channels are assigned to the internal intercoms in the identification area in sequence, and when assigning, communication channels in the grid area are randomly assigned to the internal intercoms in the identification area to obtain at least one second channel assignment pattern;

[0106] In the second channel allocation mode, it is determined whether the communication channels used by the two walkie-talkies whose allocated communication channels are not more than the target interference distance are consistent. If so, the statistical value is increased by one and the statistical value is initially 0. If not, no processing is performed;

[0107] The communication channels for the internal intercoms are allocated using the second channel allocation mode with the smallest statistical value.

[0108] When allocating communication channels, the edge intercoms are allocated first. Then, based on the allocation of the edge intercoms, communication channels are gradually allocated to the internal intercoms in the grid area. The allocation depends on the existing communication channel allocation to ensure that the overlap of communication channels of intercoms whose distance does not exceed the target interference distance is as small as possible. In the grid area, communication channels are allocated step by step from the outside to the inside.

[0109] Reference Figure 7 As shown, the frequency allocation module allocates the non-interference frequency in the grid area to the intercom in the grid area, including the following steps:

[0110] In the grid area, obtaining at least one intercom advance group, the intercom advance group consisting of two intercoms in the grid area, the distance between the intercoms in the intercom advance group does not exceed the target interference distance and uses the same communication channel;

[0111] pairing at least one non-interfering frequency belonging to the frequency range of the communication channel with the communication channel;

[0112] Randomly assigning non-interference frequencies to at least one intercom in the intercom advance group, satisfying that the non-interference frequencies are non-interference frequencies corresponding to the communication channels of the intercoms, to obtain at least one third channel assignment mode;

[0113] Counting the number of abnormal intercom advance payment groups in the third channel allocation mode as an abnormal value, the abnormal intercom advance payment group is an intercom advance payment group with the same intercom usage frequency;

[0114] Use the third channel allocation mode with the smallest outlier value to allocate frequencies to the intercoms in the intercom advance group;

[0115] In the grid area, the remaining interphones use one of the at least one non-interference frequency corresponding to the assigned communication channel as the transmission frequency.

[0116] When allocating frequencies, when the distance between two intercoms is greater than the target interference distance or different communication channels are used, the frequency used does not need to be specifically limited. It is sufficient to use the non-interference frequency corresponding to the communication channel. Because the distance is greater than the target interference distance, the interference can be ignored. When different communication channels are used, there is no intersection in the transmission frequencies used by different communication channels. Therefore, there will be no co-channel interference. However, for intercoms whose distance does not exceed the target interference distance and use the same communication channel, the frequency needs to be set to ensure that different frequencies are used as much as possible, otherwise interference is likely to occur.

[0117] Furthermore, the present solution also proposes a storage medium on which a computer-readable program is stored. When the computer-readable program is called, the above-mentioned system for writing frequency to intercoms through an IP network is executed.

[0118] It is understandable that the storage medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; an optical medium, such as a DVD; or a semiconductor medium, such as a solid state drive (SSD).

[0119] In summary, the advantages of the present invention are: by setting a frequency acquisition module, a walkie-talkie modeling module, a channel allocation module and a frequency allocation module, channels and frequencies can be allocated to walkie-talkies connected to the IP network, so that walkie-talkies whose distance does not exceed the target interference distance use different frequencies for signal transmission as much as possible, thereby avoiding signal interference, and for walkie-talkies whose distance is greater than the target interference distance, no interference will occur due to the large distance, therefore, no restriction on frequency is required, thereby, the frequency use of the overall walkie-talkie can be regulated to avoid channel conflicts and interference, and at the same time, non-interference frequencies that are less affected by the environment are determined in each grid area, and non-interference frequencies are used for frequency allocation to reduce the impact of the environment on transmission, thereby ensuring signal quality and stability.

[0120] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A system for programming intercom frequency through IP network, characterized in that: include: A location determination module, wherein the location determination module determines a usage location of at least one intercom based on a location where at least one intercom is connected to an IP network; An interference determination module, the interference determination module determines a maximum distance between the two walkie-talkies at which signal interference exists as a target interference distance, wherein the signal interference refers to interference caused by the two walkie-talkies using the same frequency for signal transmission; An IP network segmentation module, wherein the IP network segmentation module evenly divides the IP network coverage area into at least one grid area, and the side length of each grid area is greater than a preset multiple of the target interference distance; A channel acquisition module, wherein the channel acquisition module acquires all channels in the grid area, obtains at least one communication channel, and pairs the communication channel in the grid area with the grid area; A frequency acquisition module, wherein the frequency acquisition module determines at least one receiving and transmitting frequency that is not interfered by the environment in the grid area as a non-interference frequency, and pairs the non-interference frequency with the grid area; A walkie-talkie modeling module, wherein the walkie-talkie modeling module forms a suspected walkie-talkie group of walkie-talkies, and classifies the walkie-talkies based on the suspected walkie-talkie group to obtain edge walkie-talkies and internal walkie-talkies; A channel allocation module, which allocates communication channels within the grid area to intercoms within the grid area; A frequency allocation module, wherein the frequency allocation module allocates non-interference frequencies within the grid area to the intercoms within the grid area; An intercom operation module, wherein the intercom operation module performs signal transmission according to the allocated communication channel and non-interference frequency.

2. The system for writing frequency to an intercom via an IP network according to claim 1, characterized in that: The interference determination module determines the maximum distance between the two intercoms where signal interference exists as a target interference distance, including the following steps: Pre-acquire a noise ratio of an environment to a signal transmission as an environment noise ratio; generating at least one sample audio, the sample audio being different from each other, and distributing the sample audio to the intercom; Based on at least one intercom connected to the IP network, at least one intercom pairing group is formed, wherein the intercom pairing group is composed of two of the at least one intercom, and the at least one intercom pairing group includes all binary combinations of the at least one intercom; Using one of the at least one intercom pairing group as a characteristic intercom pairing group; The characteristic walkie-talkie pairing group uses the same frequency to transmit the corresponding sample audio, and the other walkie-talkie pairing groups do not transmit signals; The noise ratio in the characteristic walkie-talkie pairing group is counted as the characteristic noise ratio. When the result of subtracting the ambient noise ratio from the characteristic noise ratio is greater than a preset value, the distance of the walkie-talkies in the characteristic walkie-talkie pairing group is recorded as the characteristic distance. When the characteristic intercom pairing group traverses at least one intercom pairing group, at least one characteristic distance is obtained; The maximum value of at least one characteristic distance is used as the target interference distance.

3. The system for writing frequency to an intercom via an IP network according to claim 2, characterized in that: The IP network segmentation module evenly segments the IP network coverage area into at least one grid area, including the following steps: Forming at least one grid point in the IP network coverage area, wherein the distance between adjacent grid points is a preset multiple of the target interference distance; Adjacent grid points are connected by using line segments to obtain at least one grid area.

4. The system for writing frequency to an intercom via an IP network according to claim 3, characterized in that: The frequency acquisition module determines at least one receiving and transmitting frequency that is not interfered by the environment in the grid area as a non-interference frequency, including the following steps: Dividing the frequency range of signal transmission at equal intervals to obtain at least one frequency point; The frequency at the frequency point is used to transmit signals in the grid area to obtain a signal-to-noise ratio of the signal transmission. When the signal-to-noise ratio of the signal transmission is less than a preset value, the frequency at the frequency point is used as a non-interference frequency.

5. The system for programming intercom frequency through IP network according to claim 4, characterized in that: The intercom modeling module forms a suspected intercom group of intercoms, including the following steps: The intercoms whose distance from the intercom is not greater than the target interference distance are obtained and summarized to obtain a suspected intercom group of the intercom.

6. The system for programming intercom frequency through IP network according to claim 5, characterized in that: The classifying of intercoms to obtain edge intercoms and internal intercoms comprises the following steps: When the line connecting the intercom and the intercoms in the corresponding suspected intercom group intersects with the boundary of the grid area, the intercom is regarded as an edge intercom; When the line connecting the intercom and the intercoms in the corresponding suspected intercom group do not intersect with the boundary of the grid area, the intercom is regarded as an internal intercom.

7. The system for programming intercom frequency through IP network according to claim 6, characterized in that: The channel allocation module allocates the communication channels in the grid area to the intercoms in the grid area, including the following steps: Randomly assigning communication channels within the grid area to edge intercoms within the grid area to obtain at least one first channel assignment pattern; In the first channel allocation mode, it is determined whether the communication channels used by the two edge intercoms whose distance does not exceed the target interference distance are consistent. If so, the count value is increased by one and the count value is initially 0. If not, no processing is performed; Use the first channel allocation mode with the smallest count value to allocate communication channels to the edge intercom; In the grid area, at least one identification circle is formed, the center of the identification circle coincides with the center of the grid area, and the radius difference between adjacent identification circles is the target interference distance; At least one recognition circle divides the grid area into at least one recognition area, and calculates the average of the distances from the internal intercom in the recognition area to the center of the grid area to obtain a recognition average; Sort the recognition regions from large to small according to the recognition mean value to obtain the recognition region sequence; Communication channels are assigned to the internal intercoms in the identification area in sequence according to the sequence of the identification areas. When assigning channels, communication channels in the grid area are randomly assigned to the internal intercoms in the identification area to obtain at least one second channel assignment pattern. In the second channel allocation mode, it is determined whether the communication channels used by the two walkie-talkies whose distances do not exceed the target interference distance are consistent. If so, the statistical value is increased by one and the statistical value is initially 0. If not, no processing is performed. The communication channels for the internal intercoms are allocated using the second channel allocation mode with the smallest statistical value.

8. The system for programming intercom frequency through IP network according to claim 7, characterized in that: The frequency allocation module allocates the non-interference frequency in the grid area to the intercom in the grid area, including the following steps: In the grid area, obtaining at least one intercom advance group, the intercom advance group consisting of two intercoms in the grid area, the distance between the intercoms in the intercom advance group does not exceed the target interference distance and uses the same communication channel; pairing at least one non-interfering frequency belonging to the frequency range of the communication channel with the communication channel; Randomly assigning non-interference frequencies to at least one intercom in the intercom advance group, satisfying that the non-interference frequencies are non-interference frequencies corresponding to the communication channels of the intercoms, to obtain at least one third channel assignment mode; Counting the number of abnormal intercom advance payment groups in the third channel allocation mode as an abnormal value, the abnormal intercom advance payment group is an intercom advance payment group with the same intercom usage frequency; Use the third channel allocation mode with the smallest outlier value to allocate frequencies to the intercoms in the intercom advance group; In the grid area, the remaining interphones use one of the at least one non-interference frequency corresponding to the assigned communication channel as the transmission frequency.

Images