Single-frequency-point multi-channel digital trunking system

Abstract

The invention provides a single-frequency-point multi-channel digital trunking system which comprises a main system and a terminal system, the main system is connected to the terminal system, and the main system comprises a power supply board card, a duplex communication board card, a DTMF decoding board card, a channel distribution board card, a channel exchange board card, a network communication board card, a telephone exchange board card, a data board card, an expansion board card and a back board card. The back board card is respectively connected with the power supply board card, the duplex communication board card, the DTMF decoding board card, the channel distribution board card, the channel exchange board card, the network communication board card, the telephone exchange board card, the data board card and the expansion board card; the main system exchanges data with the terminal through the transceiving unit by channel allocation codes, each channel is independent of each other and does not interfere with each other, the channel allocation unit supports multi-channel standby transceiving, the standby transceiving unit can be used for link communication, expansion communication and combination of existing communication equipment, the digital process of radio is accelerated, and the communication efficiency is improved. And radio digitization, popularization and low threshold are realized.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a single-frequency multi-channel digital cluster system. Background Art

[0002] Radio frequencies are limited, but with the development of society, people have greater demands for radio, which has led to the gradual depletion of radio frequency resources. In order to accelerate the digitalization process of radio and make radio digital, popular and low-threshold, a single-frequency multi-channel digital trunking system is urgently needed. Summary of the invention

[0003] In view of this, in order to solve the problems existing in the technical background, the present invention proposes a single-frequency multi-channel digital trunking system, and the specific technical solution is as follows:

[0004] A single-frequency multi-channel digital trunking system comprises a main system and a terminal system, wherein the main system is connected to the terminal system, and the main system comprises a power board, a duplex communication board, a DTMF decoding board, a channel allocation board, a channel switching board, a network communication board, a telephone switching board, a data board, an expansion board, and a back board, wherein the back board is respectively connected to the power board, the duplex communication board, the DTMF decoding board, the channel allocation board, the channel switching board, the network communication board, the telephone switching board, the data board, and the expansion board;

[0005] Furthermore, the main system exchanges data with the terminal system through the transceiver unit by channel allocation coding, each channel is independent and does not interfere with each other, the channel allocation board supports multi-channel standby transceiver, the standby transceiver unit can be used as link communication, extended communication, and the existing communication equipment, the channel allocation board and the channel switching board exchange data, the channel allocation board receives the transceiver unit DTMF signal, the DTMF decoding unit decodes the DTMF signal and controls the channel switching unit. The channel switching board can access the data board, network communication board, telephone switching board and expansion board.

[0006] Further, the power board is a board that provides power supply to the entire system. The power board is composed of a high-power AC switch conversion power supply, a DC input, and a voltage stabilizing circuit. The duplex communication board is a group of duplex radio stations used as the main communication, and other communication boards are used as wireless links to facilitate wireless networking. The DTMF decoding board receives the DTMF signal from the duplex communication board, and the DTMF decoding board decodes the control signal to send it to the channel exchange board, and the control signal is displayed by an indicator light. The channel communication board is composed of multiple groups of channels, each group of channels uses digital coding and does not interfere with each other, and each group of channel decoding uses digital decoding and complementary interference. The DTMF decoding board demodulates the control signal and sends it to the channel exchange board to control the overall channel of the channel allocation board. The exchange mode is divided into group call, individual call, group call and broadcast. The network communication board is to exchange network data through the network or a fixed IP address. The data board uses a computer to send the data signal to the terminal device through channel allocation and data exchange. The telephone exchange board uses a telephone switch to make the terminal device make a call through channel channel exchange.

[0007] Furthermore, the terminal system includes one of a handheld radio, a vehicle-mounted radio and a duplex radio.

[0008] Furthermore, the mobile phone receives data sent and received by the main system, the channel where the mobile phone is located is specified by the channel allocation board, the channel is dialed by the DTMF unit, the voice signal is input by the microphone part, the voice signal is output by the speaker part, and the data signal is transmitted by the data part; the vehicle-mounted radio receives data sent and received by the main system, the channel where the vehicle-mounted radio is located is specified by the channel allocation board, the channel is dialed by the DTMF unit, the voice signal is input by the microphone part, the voice signal is output by the speaker part, and the data signal is transmitted by the data part.

[0009] Furthermore, the receiver of the duplex radio receives data sent by the main system, the duplex transmitter transmits the data transmitted by the duplex radio, the channel where the duplex radio is located is specified by the channel allocation board, the DTMF unit dials the call channel, the microphone part inputs the voice signal, the speaker part outputs the voice signal, and the data part transmits the data signal.

[0010] Furthermore, the duplex radio station can be used as a link machine for link communication, extended communication, and concurrently used with existing communication equipment.

[0011] The above technical solution has the following beneficial effects:

[0012] The main system of the present invention exchanges data with the terminal through the transceiver unit by channel allocation coding. Each channel is independent of each other and does not interfere with each other. The channel allocation unit supports multi-channel standby transceiver. The standby transceiver unit can be used for link communication, extended communication, and combined with existing communication equipment, thereby accelerating the digitalization process of radio, making radio digital, popular, and low-threshold. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a single-frequency multi-channel digital trunking system of the present invention;

[0014] Figure 2 It is a schematic diagram of a single-frequency multi-channel digital trunking system of the present invention;

[0015] Figure 3 It is a structural schematic diagram of the handheld radio part in the terminal system of the single-frequency multi-channel digital trunking system of the present invention;

[0016] Figure 4 It is a structural schematic diagram of a vehicle-mounted radio station in a terminal system of a single-frequency multi-channel digital trunking system of the present invention;

[0017] Figure 5 A schematic diagram of the structure of a duplex radio station of a single-frequency multi-channel digital trunking system of the present invention;

[0018] Figure 6 It is a schematic diagram of a power board of a single-frequency multi-channel digital trunking system of the present invention;

[0019] Figure 7 It is a schematic diagram of the main communication radio station of the duplex communication board of the single-frequency multi-channel digital trunking system of the present invention;

[0020] Figure 8 It is a schematic diagram of a link radio station of a single-frequency multi-channel digital trunking system of the present invention;

[0021] Fig. 9 It is a schematic diagram of a duplex radio station of a single-frequency multi-channel digital trunking system of the present invention;

[0022] Fig.10 The schematic diagram of the DTMF decoding board of the single-frequency multi-channel digital trunking system of the present invention;

[0023] Fig.11 It is a schematic diagram of a channel allocation board of a single-frequency multi-channel digital trunking system of the present invention;

[0024] Fig.12 It is a principle diagram of a network communication board of a single-frequency multi-channel digital trunking system of the present invention;

[0025] Fig.13It is a schematic diagram of a data board of a single-frequency multi-channel digital trunking system of the present invention;

[0026] Fig.14 It is a schematic diagram of a telephone exchange board of a single-frequency multi-channel digital trunking system of the present invention;

[0027] Fig.15 The schematic diagram is a back panel of the single-frequency multi-channel digital trunking system of the present invention. DETAILED DESCRIPTION

[0028] 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.

[0029] Example: Single frequency multi-channel digital trunking system, see Figure 1 As shown, it includes a main system and a terminal system, the main system is connected to the terminal system, and the main system includes a power board, a duplex communication board, a DTMF decoding board, a channel allocation board, a channel switching board, a network communication board, a telephone switching board, a data board, an expansion board, and a back board. Fig.15 As shown, the backboard is respectively connected to the power board, duplex communication board, DTMF decoding board, channel allocation board, channel switching board, network communication board, telephone switching board, data board and expansion board.

[0030] See also Figure 2 As shown, the main system exchanges data with the terminal system through the transceiver unit by channel allocation coding, each channel is independent and does not interfere with each other, the channel allocation board supports multi-channel standby transceiver, the standby transceiver unit can be used as link communication, extended communication, and the existing communication equipment, the channel allocation board and the channel switching board exchange data, the channel allocation board receives the DTMF signal of the transceiver unit, and the DTMF decoding unit decodes the DTMF signal and controls the channel switching unit. The channel switching board can access the data board, network communication board, telephone switching board and expansion board.

[0031] See also Figure 6-Figure 15As shown, the power board is a board that provides power supply to the entire system, the power board is composed of a high-power AC switch conversion power supply and a DC input, and a voltage stabilizing circuit. The duplex communication board is used as a main communication by a group of duplex radio stations, and other communication boards are used as wireless links to facilitate wireless networking. The DTMF decoding board receives the DTMF signal from the duplex communication board, and the DTMF decoding board decodes a control signal and sends it to the channel exchange board. The control signal is displayed by an indicator light. The channel communication board is composed of multiple groups of channels, each group of channels adopts digital coding and does not interfere with each other, and each group of channel decoding adopts digital decoding and complementary interference. The DTMF decoding board demodulates a control signal and sends it to the channel exchange board to control the overall channel of the channel allocation board. The exchange mode is divided into group call, individual call, group call and broadcast. The network communication board is a data exchange of the network through a network or a fixed IP address. The data board utilizes a computer to send a data signal to a terminal device through channel allocation and data exchange. The telephone exchange board utilizes a telephone switch to make the terminal device make a call through channel exchange.

[0032] In this embodiment, the power board is a board that provides power supply to the entire system. The power board consists of three parts: a high-power AC switch conversion power supply, a DC input, and a voltage stabilizing circuit. The high-power AC conversion power supply is input from the AC mains, and the DC output is to the anti-rebound circuit. The DC input is from the external DC input after being protected by the anti-reverse diode to the anti-rebound circuit. The anti-rebound circuit is input from two DC power supplies to the relay, and the two power supplies are introduced respectively by the pull-in of the relay. The voltage stabilizing circuit is input from the anti-rebound circuit, and the voltage stabilizing circuit is stabilized into each required power supply and sent to the entire system to ensure the power consumption of the entire system. The duplex communication board is used by a group of duplex radios as the main communication, and other communication boards are used as wireless links to facilitate wireless networking. The main communication radio is divided into uplink frequency, downlink frequency, and mute, and the communication method communicates with the terminal equipment. Other communication radios are also divided into uplink frequency, downlink frequency, and mute, and the communication method is connected to other circuits, and can also be connected to existing digital radios.

[0033] The DTMF decoding board receives the DTMF signal from the duplex communication board, and the DTMF decoding board decodes the control signal and sends it to the channel exchange board. The control signal is displayed by the indicator light. The channel communication board is composed of multiple groups of channels. Each group of channels uses digital coding and does not interfere with each other. Each group of channel decoding uses digital decoding and complementary interference. The DTMF decoding board demodulates the control signal and sends it to the channel exchange board to control the overall channel of the channel allocation board. The exchange mode is divided into group call, individual call, group call and broadcast. The network communication board exchanges network data through the network or fixed IP address. The data board uses the computer to send the data signal to the terminal device through channel allocation and data exchange. The telephone exchange board uses the telephone switch to enable the terminal device to make a call through channel channel exchange.

[0034] See also Figure 3 , Figure 4 and Figure 5 As shown, the terminal system includes one of a handheld radio, a vehicle-mounted radio and a duplex radio. The handheld radio receives data sent and received by the main system, the channel where the handheld radio is located is specified by a channel allocation board, the channel where the handheld radio is located is dialed by a DTMF unit, the voice signal is input by a microphone part, the voice signal is output by a speaker part, and the data signal is transmitted by a data part. The vehicle-mounted radio receives data sent and received by the main system, the channel where the vehicle-mounted radio is located is specified by a channel allocation board, the channel where the DTMF unit is dialed by a DTMF unit, the voice signal is input by a microphone part, the voice signal is output by a speaker part, and the data signal is transmitted by a data part. The receiver of the duplex radio receives data sent by the main system, and the duplex transmitter transmits data transmitted by the duplex radio. The channel where the duplex radio is located is specified by a channel allocation board, the channel where the duplex radio is located is dialed by a DTMF unit, the voice signal is input by a microphone part, the voice signal is output by a speaker part, and the data signal is transmitted by a data part. The duplex radio can be used as a link communication, an extended communication, and a link machine used in conjunction with existing communication equipment.

[0035] The main system of the present invention exchanges data with the terminal through the transceiver unit by channel allocation coding. Each channel is independent of each other and does not interfere with each other. The channel allocation unit supports multi-channel standby transceiver. The standby transceiver unit can be used for link communication, extended communication, and combined with existing communication equipment, thereby accelerating the digitalization process of radio, making radio digital, popular, and low-threshold.

[0036] The basic principles and main features of the present invention are described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. Single frequency multi-channel digital trunking system, characterized in that: The invention comprises a main system and a terminal system, wherein the main system is connected to the terminal system, and the main system comprises a power board, a duplex communication board, a DTMF decoding board, a channel allocation board, a channel switching board, a network communication board, a telephone switching board, a data board, an expansion board, and a back board, and the back board is respectively connected to the power board, the duplex communication board, the DTMF decoding board, the channel allocation board, the channel switching board, the network communication board, the telephone switching board, the data board, and the expansion board.

2. The single-frequency multi-channel digital trunking system according to claim 1, characterized in that: The main system exchanges data with the terminal system through the transceiver unit by channel allocation coding, each channel is independent and does not interfere with each other, the channel allocation board supports multi-channel standby transceiver, the standby transceiver unit can be used as link communication, extended communication, and the existing communication equipment, the channel allocation board exchanges data with the channel switching board, the channel allocation board receives the DTMF signal of the transceiver unit, and the DTMF decoding unit decodes the DTMF signal and controls the channel switching unit. The channel switching board can access the data board, network communication board, telephone switching board and expansion board.

3. The single-frequency multi-channel digital trunking system according to claim 1, characterized in that: The power board is a board that provides power supply to the entire system. The power board is composed of a high-power AC switch conversion power supply, a DC input, and a voltage stabilizing circuit. The duplex communication board is a group of duplex radio stations used as the main communication, and other communication boards are used as wireless links to facilitate wireless networking. The DTMF decoding board receives the DTMF signal from the duplex communication board, and the DTMF decoding board decodes the control signal and sends it to the channel exchange board. The control signal is displayed by an indicator light. The channel communication board is composed of multiple groups of channels, each group of channels uses digital coding and does not interfere with each other. Each group of channel decoding uses digital decoding and complementary interference. The DTMF decoding board demodulates the control signal and sends it to the channel exchange board to control the overall channel of the channel allocation board. The exchange mode is divided into group call, individual call, group call and broadcast. The network communication board exchanges network data through the network or a fixed IP address. The data board uses a computer to send the data signal to the terminal device through channel allocation and data exchange. The telephone exchange board uses a telephone switch to make the terminal device make a call through channel channel exchange.

4. The single-frequency multi-channel digital trunking system according to claim 1, characterized in that: The terminal system includes one of a handheld radio, a vehicle-mounted radio and a duplex radio.

5. The single-frequency multi-channel digital trunking system according to claim 4, characterized in that: The handheld radio receives data sent and received by the main system, the channel where the handheld radio is located is specified by the channel allocation board, the channel is dialed by the DTMF unit, the voice signal is input by the microphone part, the voice signal is output by the speaker part, and the data signal is transmitted by the data part. The vehicle-mounted radio receives data sent and received by the main system, the channel where the vehicle-mounted radio is located is specified by the channel allocation board, the channel is dialed by the DTMF unit, the voice signal is input by the microphone part, the voice signal is output by the speaker part, and the data signal is transmitted by the data part.

6. The single-frequency multi-channel digital trunking system according to claim 4, characterized in that: The receiver of the duplex radio station receives data sent by the main system, the duplex transmitter transmits the data transmitted by the duplex radio station, the channel where the duplex radio station is located is specified by the channel allocation board, the DTMF unit dials the call channel, the microphone part inputs the voice signal, the speaker part outputs the voice signal, and the data part transmits the data signal.

7. The single-frequency multi-channel digital trunking system according to claim 4, characterized in that: The duplex radio station can be used as a link communication, extended communication, and a concurrent link machine for existing communication equipment.

Images