A broadcast transmission controller

Abstract

The utility model discloses a broadcast transmission controller, which comprises: a main controller, a main identification module, a substitute identification module, a switch detection module and a switch control module; the main identification code output end of the main identification module is connected to the main identification code input end of the main controller, the enable output end of the main identification module is connected to the enable input end of the main controller, the output end of the switch detection module is connected to the first state input end of the main controller, the substitute identification code output end of the main controller is connected to the substitute identification code input end of the substitute identification module, and the control output end of the main controller is connected to the input end of the switch control module; the broadcast transmission controller of the utility model is helpful to realize a highly intelligent and highly automated backup transmission system through the connection and coordination among the main controller, the main identification module, the substitute identification module, the switch detection module and the switch control module, reduces the work intensity and improves the efficiency of the substitute broadcast failure frequency.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of broadcast transmission, and in particular to a broadcast transmission controller. Background Art

[0002] In the FM n+1 transmission system, n transmitter hosts with different frequencies share a backup transmitter. When a frequency transmitter fails, the backup transmitter broadcasts the frequency. If the remaining frequencies in the FM n+1 transmission system fail again, there will be no backup transmitter available. Therefore, it is very necessary to build a backup transmission system. At present, the existing backup transmission system is a 1+1 broadcast transmission system consisting of a coaxial controller and two transmitters. It is a second backup transmission system mainly operated manually, with low automation and intelligence levels, high work intensity of the staff, and low efficiency in broadcasting fault frequencies. Utility Model Content

[0003] The utility model provides a broadcast transmission controller to realize a highly intelligent and highly automated standby transmission system, reduce work intensity, and improve the efficiency of the frequency of broadcast failures.

[0004] The embodiment of the utility model provides a broadcast transmission controller, which includes: a main controller, a main identification module, a generation identification module, a switch detection module and a switch control module;

[0005] The main identification code output terminal of the main identification module is connected to the main identification code input terminal of the main controller, the enable output terminal of the main identification module is connected to the enable input terminal of the main controller, the output terminal of the switch detection module is connected to the first state input terminal of the main controller, the substitute identification code output terminal of the main controller is connected to the substitute identification code input terminal of the substitute identification module, and the control output terminal of the main controller is connected to the input terminal of the switch control module;

[0006] The main identification module is used to receive the main identification information of the main broadcast transmitter, and output the main identification coding information and the enabling information; the main controller is used to receive the main identification coding information and the enabling information, and output the proxy identification coding information corresponding to the main identification coding information; the switch detection module is used to detect the state information of the coaxial switch, and the state information includes: proxy broadcast information or non-proxy broadcast information;

[0007] The main controller is also used to receive status information and send non-substitute broadcast information from the control output end to the switch control module; the switch control module is used to receive non-substitute broadcast information and control the coaxial switch to adjust the state according to the non-substitute broadcast information; the substitute identification module is used to receive the substitute identification coding information and determine the transmission information corresponding to the substitute identification coding information so that the substitute broadcast transmitter works on behalf of the host transmitter.

[0008] Further, the main identification module includes: a plurality of control units, a main broadcast transmitter identification encoding unit, a proxy broadcast transmitter state detection unit and an interruption unit;

[0009] The main identification output terminal of each control unit is connected to each main identification input terminal of the host transmitter identification encoding unit, the main identification encoding output terminal of the host transmitter identification encoding unit is connected to the main identification encoding input terminal of the main controller, the interrupt request output terminal of the host transmitter identification encoding unit is connected to the interrupt request input terminal of the interrupt unit, the state output terminal of the proxy transmitter state detection unit is connected to the second state input terminal of the interrupt unit, and the interrupt enable output terminal of the interrupt unit is connected to the interrupt enable input terminal of the main controller;

[0010] Each of the control units is used to transmit the main identification information corresponding to each anchor transmitter;

[0011] The host transmitter identification encoding unit is used to transmit the host identification encoding information and the interruption request information;

[0012] The proxy broadcast transmitter state detection unit is used to transmit proxy broadcast transmitter state information;

[0013] The interrupt unit is used to transmit enabling information.

[0014] Further, the control unit includes: a button unit, a selection unit, a main broadcast transmitter power detection unit and a proxy broadcast logic output unit;

[0015] The output end of the button unit, the output end of the selection unit and the output end of the host transmitter power detection unit are respectively connected to the input end of the proxy broadcast logic output unit, and the output end of the proxy broadcast logic output unit is connected to the main identification input end of the host transmitter identification encoding unit;

[0016] The anchor transmitter power detection unit is used to transmit the fault information of the anchor transmitter;

[0017] The selection unit is used to transmit the automatic proxy broadcast signal or the manual proxy broadcast signal;

[0018] The button unit is used to transmit a manual proxy broadcast signal to the proxy broadcast logic output unit.

[0019] Further, the button unit includes: a first button and a first resistor; the selection unit includes: a second button and a second resistor; the host transmitter power detection unit includes: a third resistor, a fourth resistor, a fifth resistor, a sixth resistor and a comparator; the proxy broadcast logic output unit includes: a first OR gate, a second AND gate, a first NOT gate and a first AND gate;

[0020] The first end of the first button is grounded, the second end of the first button is respectively connected to the first end of the first resistor and the first end of the first OR gate, the second end of the first resistor is connected to a power supply, the third end of the first OR gate is connected to the first end of the first AND gate, and the third end of the first AND gate is connected to any one of the main identification input ends of the anchor transmitter identification encoding unit;

[0021] The first end of the second button is grounded, the second end of the second button is respectively connected to the first end of the second resistor, the second end of the first OR gate and the first end of the second AND gate, and the second end of the second resistor is connected to a power supply;

[0022] The first end of the third resistor is connected to a power supply, the second end of the third resistor is respectively connected to the first end of the fourth resistor and the first end of the comparator, the second end of the fourth resistor is grounded, the first end of the fifth resistor is grounded, the second end of the fifth resistor serves as the input end of the anchor transmitter power detection unit, the fifth resistor is also connected to the second end of the comparator, the third end of the comparator is connected to a power supply, the fourth end of the comparator is grounded, the fifth end of the comparator is respectively connected to the first end of the sixth resistor and the second end of the second AND gate, the third end of the second AND gate is connected to the first end of the first NOT gate, and the second end of the first NOT gate is connected to the second end of the first AND gate.

[0023] Further, the anchor transmitter identification encoding unit includes: a first row of resistors, a second row of resistors, a first encoder, a second encoder, a third AND gate, a fourth AND gate, a fifth AND gate, a second NOT gate, a third NOT gate, a fourth NOT gate and a first buffer;

[0024] The first end of the first resistor is connected to a power supply, the second end of the first resistor to the ninth end of the first resistor are connected to the first end of the first encoder to the eighth end of the first encoder in a one-to-one correspondence, the first end of the first encoder to the eighth end of the first encoder serve as a main identification input end of the host transmitter identification encoding unit, the ninth end of the first encoder is grounded, the tenth end of the first encoder is connected to the first end of the third AND gate, the eleventh end of the first encoder is connected to the first end of the fourth AND gate, the twelfth end of the first encoder is connected to the first end of the fifth AND gate, and the thirteenth end of the first encoder serves as an interrupt request output end of the host transmitter identification encoding unit;

[0025] The first end of the second resistor is connected to a power supply, the second end of the second resistor to the ninth end of the second resistor are connected in a one-to-one correspondence with the first end of the second encoder to the eighth end of the second encoder, the first end of the second encoder to the eighth end of the second encoder serve as a main identification input end of the host transmitter identification encoding unit, the ninth end of the second encoder is grounded, the tenth end of the second encoder is connected to the second end of the third AND gate, the eleventh end of the second encoder is connected to the second end of the fourth AND gate, the twelfth end of the second encoder is connected to the second end of the fifth AND gate, the thirteenth end of the second encoder is connected to the first end of the first buffer, the third end of the third AND gate is connected to the first end of the second NOT gate, the third end of the fourth AND gate is connected to the first end of the third NOT gate, the third end of the fifth AND gate is connected to the first end of the fourth NOT gate, the second end of the second NOT gate, the second end of the third NOT gate, the second end of the fourth NOT gate and the second end of the first buffer serve as the main identification encoding output end of the host transmitter identification encoding unit.

[0026] Further, the proxy broadcast transmitter state detection unit includes: a seventh resistor, an eighth resistor and a second OR gate; the interrupt unit includes: a first NOR gate and a third OR gate;

[0027] The first end of the seventh resistor serves as the first input end of the proxy transmitter state detection unit, the first end of the seventh resistor is also connected to the first end of the second OR gate, the second end of the seventh resistor is grounded, the first end of the eighth resistor serves as the second input end of the proxy transmitter state detection unit, the first end of the eighth resistor is also connected to the second end of the second OR gate, the second end of the eighth resistor is grounded, the third end of the second OR gate is connected to the second end of the third OR gate, and the third end of the second OR gate serves as the state output end of the proxy transmitter state detection unit;

[0028] The first end of the first NOR gate and the second end of the first NOR gate serve as an interrupt request input end of the interrupt unit, the third end of the first NOR gate is connected to the first end of the third OR gate, the second end of the third OR gate serves as a second state input end of the interrupt unit, and the third end of the third OR gate serves as an interrupt enable output end of the interrupt unit and is connected to the interrupt enable input end of the main controller.

[0029] Further, the generation identification module includes: a generation broadcast transmitter identification decoding unit, a generation broadcast audio output unit, a frequency preset output unit and a power-on delay unit; the transmission information includes the generation broadcast audio, the generation broadcast frequency and the power-on control instruction;

[0030] The proxy identification code output terminal of the main controller is connected to the proxy identification code input terminal of the proxy broadcast transmitter identification decoding unit, and the output terminal of the proxy broadcast transmitter identification decoding unit is respectively connected to the proxy broadcast audio output unit, the frequency preset output unit and the power-on delay unit;

[0031] The generation transmitter identification decoding unit is used to receive the generation identification encoding information and output the generation identification decoding information;

[0032] The proxy broadcast audio output unit is used to receive proxy identification decoding information and output proxy broadcast audio;

[0033] The frequency preset output unit is used to receive the generation identification decoding information and output the generation broadcast frequency;

[0034] The power-on delay unit is used to output a power-on control instruction to control the power-on of the proxy broadcast transmitter.

[0035] Further, the proxy broadcast transmitter identification decoding unit includes: a first decoder, a second decoder and a fifth NOT gate;

[0036] The first end of the first decoder is connected to the first end of the second decoder, the second end of the first decoder is connected to the second end of the second decoder, the third end of the first decoder is connected to the third end of the second decoder, the fourth end of the first decoder is connected to the fourth end of the second decoder via the fifth NOT gate, the first end of the first decoder, the first end of the second decoder, the second end of the first decoder, the third end of the first decoder, the third end of the second decoder, the fourth end of the first decoder and the fourth end of the second decoder are the generation identification coding input ends of the generation transmitter identification decoding unit.

[0037] Further, the proxy audio output unit includes: a Darlington array tube, a first diode and a relay; the power-on delay unit includes: a second diode, a ninth resistor, an electrolytic capacitor and a sixth NOT gate;

[0038] The first end of the Darlington array tube is used to receive the generation identification decoding information, the second end of the Darlington array tube is grounded, the third end of the Darlington array tube is respectively connected to the positive electrode of the first diode and the second end of the relay, the negative electrode of the first diode and the first end of the relay are connected to the power supply, the input end of the relay is connected to the main broadcast transmitter, and the output end of the relay is connected to the generation broadcast transmitter;

[0039] The cathode of the second diode is connected to the first end of the ninth resistor, and the cathode of the second diode and the first end of the ninth resistor are used to receive the generation identification decoding information. The cathode of the electrolytic capacitor is respectively connected to the anode of the second diode, the second end of the ninth resistor and the first end of the sixth NOT gate. The cathode of the electrolytic capacitor is grounded, and the second end of the sixth NOT gate is connected to the generation broadcast transmitter as the output end of the power-on delay unit.

[0040] Furthermore, the broadcast transmission controller further includes: a frequency display module;

[0041] The frequency display module is electrically connected to the frequency output terminal of the main controller;

[0042] The frequency display module is used to display the broadcast frequency.

[0043] The utility model embodiment provides a broadcast transmission controller, which includes: a main controller, a main identification module, a substitute identification module, a switch detection module and a switch control module; the main identification code output end of the main identification module is connected to the main identification code input end of the main controller, the enable output end of the main identification module is connected to the enable input end of the main controller, the output end of the switch detection module is connected to the first state input end of the main controller, the substitute identification code output end of the main controller is connected to the substitute identification code input end of the substitute identification module, and the control output end of the main controller is connected to the input end of the switch control module; the main identification module is used to receive the main identification information of the host transmitter , and outputs main identification coding information and enabling information; the main controller is used to receive the main identification coding information and enabling information, and output the generation identification coding information corresponding to the main identification coding information; the switch detection module is used to detect the status information of the coaxial switch, and the status information includes: generation broadcast information or non-generation broadcast information; the main controller is also used to receive the status information, and send the non-generation broadcast information from the control output end to the switch control module; the switch control module is used to receive the non-generation broadcast information, and control the coaxial switch to adjust the state according to the non-generation broadcast information; the generation identification module is used to receive the generation identification coding information, and determine the transmission information corresponding to the generation identification coding information, so that the generation broadcast transmitter works on behalf of the main broadcast transmitter. The broadcast transmission controller of the utility model helps to realize a highly intelligent and highly automated backup transmission system through the connection and coordination between the main controller, the main identification module, the generation identification module, the switch detection module and the switch control module, reduces the work intensity, and improves the efficiency of the generation broadcast failure frequency.

[0044] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present utility model, nor are they intended to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0046] Figure 1 A schematic diagram of the structure of a broadcast transmission controller provided by an embodiment of the utility model;

[0047] Figure 2 A schematic diagram of the structure of another broadcast transmission controller provided by an embodiment of the utility model;

[0048] Figure 3 A circuit schematic diagram of a control unit provided in an embodiment of the utility model;

[0049] Figure 4 A circuit schematic diagram of a host transmitter identification encoding unit provided in an embodiment of the utility model;

[0050] Figure 5 A circuit schematic diagram of a state detection unit of a proxy broadcast transmitter and a circuit schematic diagram of an interrupt unit provided in an embodiment of the utility model;

[0051] Figure 6 A circuit schematic diagram of a broadcast transmitter identification decoding unit provided by an embodiment of the utility model;

[0052] Figure 7 A circuit schematic diagram of a broadcast audio output unit, a frequency preset output unit and a power-on delay unit provided in an embodiment of the utility model;

[0053] Figure 8 A circuit schematic diagram of a frequency display module provided by an embodiment of the utility model;

[0054] Fig. 9 A circuit schematic diagram of a switch detection module and a switch control module provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0055] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. In addition, the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. It should also be noted that, for ease of description, only parts related to the present invention are shown in the accompanying drawings, rather than all structures.

[0056] It should be noted that the concepts such as "first" and "second" mentioned in the embodiments of the present invention are only used to distinguish different devices, modules, units or other objects, and are not used to limit the order or interdependence of the functions performed by these devices, modules, units or other objects.

[0057] The utility model is mainly designed for a backup transmission solution for the FM n+1 transmission system. In the FM n+1 transmission system, n transmitter hosts with different frequencies share a backup transmitter. When a transmitter of a certain frequency fails, the backup transmitter broadcasts the frequency instead. If the remaining frequencies in the FM n+1 transmission system fail again, there will be no backup available. Therefore, it is very necessary to build a backup transmission system, which can replace a frequency when the n+1 backup transmitter is occupied. Based on the probability evaluation of previous failures, the construction of a backup transmission system can meet the current safe broadcasting needs.

[0058] At present, the existing backup transmission system is a 1+1 system consisting of a coaxial controller and two transmitters. It is a backup system mainly operated manually, that is, when a frequency needs to be broadcasted, it only provides an input interface for the broadcast source, and cannot automatically identify the corresponding broadcast audio input; it can only manually set the broadcast frequency, and cannot automatically identify and set the corresponding broadcast frequency. Under the control of the coaxial controller, the main and backup broadcast machines can only preset the same broadcast frequency, and it is impossible to preset different frequencies for the two broadcast transmitters.

[0059] In actual proxy broadcasting operations, the backup transmission system currently calls the proxy broadcasting audio and sets the proxy broadcasting frequency manually, both of which take a lot of time. In addition, if an operational error occurs during the operation, it will cause serious safety broadcasting accidents.

[0060] The utility model aims to design a set of devices that can automatically identify the frequency of the corresponding proxy broadcast transmitter and automatically configure the proxy broadcast audio, proxy broadcast frequency, and proxy broadcast transmitter of the backup transmission system, and automatically open the proxy broadcast transmitter to achieve the purpose of fast proxy broadcast fault frequency. In the proxy broadcast system involved in the utility model, two transmitters can set 16 different proxy broadcast frequencies, so for the n+1 transmission system that needs to build a backup system transmission station, its scope of application is relatively large, and it can basically cover all domestic FM broadcast n+1 systems. After receiving the proxy broadcast fault frequency information, the controller can automatically switch the antenna connected to the relevant transmitter according to the proxy broadcast fault frequency, eliminating the operation of manually switching the antenna. At the same time, the manual proxy broadcast function is retained. Manual proxy broadcast is simple to operate. As long as the button of the corresponding frequency is pressed, the backup transmission system, under the control of the utility model, also automatically completes the subsequent proxy broadcast frequency, proxy broadcast audio, and proxy broadcast transmitter switching, and finally automatically turns on to complete the proxy broadcast.

[0061] Figure 1This is a schematic diagram of the structure of a broadcast transmission controller provided by an embodiment of the utility model. This embodiment can be applied to realize a highly intelligent and highly automated backup transmission system, reduce work intensity, and improve the efficiency of the frequency of broadcast failures. Specifically, Figure 1 As shown, the broadcast transmission controller includes: a main controller 100, a main identification module 200, a substitute identification module 300, a switch detection module 400 and a switch control module 500; the main identification code output terminal of the main identification module 200 is connected to the main identification code input terminal of the main controller 100, the enable output terminal of the main identification module 200 is connected to the enable input terminal of the main controller 100, the output terminal of the switch detection module 400 is connected to the first state input terminal of the main controller 100, the substitute identification code output terminal of the main controller 100 is connected to the substitute identification code input terminal of the substitute identification module 300, and the control output terminal of the main controller 100 is connected to the input terminal of the switch control module 500;

[0062] The main identification module 200 is used to receive the main identification information of the main broadcast transmitter, and output the main identification coding information and the enabling information; the main controller 100 is used to receive the main identification coding information and the enabling information, and output the proxy identification coding information corresponding to the main identification coding information; the switch detection module 400 is used to detect the state information of the coaxial switch, and the state information includes: proxy broadcast information or non-proxy broadcast information;

[0063] The main controller 100 is also used to receive status information and send non-substitute broadcast information from the control output end to the switch control module 500; the switch control module 500 is used to receive non-substitute broadcast information and control the coaxial switch to adjust the state according to the non-substitute broadcast information; the substitute identification module 300 is used to receive the substitute identification coding information and determine the transmission information corresponding to the substitute identification coding information so that the substitute broadcast transmitter works on behalf of the host transmitter.

[0064] In this embodiment, the input end of the main identification module 200 can be connected to the anchor transmitter, and can be used to receive the main identification information of the anchor transmitter, and can encode the main identification information to obtain the main identification coding information, and then send it to the main controller 100, and can also be used to output enable information. The main identification coding output end can be used to output the main identification coding information. The enable output end can be used to output the enable information. Among them, the anchor transmitter can be understood as a main FM broadcast transmitter, which can be the core device of the radio station, and can be used to convert the audio signal into a high-frequency electromagnetic wave and transmit it through the antenna to realize the broadcast of radio waves. The main identification information can be understood as the identification information of the anchor transmitter, which can be used to identify or distinguish different anchor transmitters. The main identification coding information can be understood as the encoded main identification information. The enable information can be understood as a kind of information used to trigger the main controller 100 to execute the interrupt program.

[0065] The main identification coding input terminal can be used to receive the main identification coding information. The enable input terminal can be used to receive the enable information. The first state input terminal can be used to receive the state information of the coaxial switch. The proxy identification coding output terminal can be used to output the transmission information. The control output terminal can be used to output the non-proxy broadcast information. The main controller 100 can be used as the core module of the broadcast transmission controller 10, for example, it can be a single-chip microcomputer, which can be used to execute the interrupt program. When the enable information is received, the main controller 100 is triggered to execute the interrupt program, that is, the main identification coding information of the anchor transmitter is received, and the transmission information corresponding to the anchor transmitter is determined according to the main identification coding information. The main controller 100 can also be used to receive the state information of the coaxial switch detected and sent by the switch detection module 400 when the enable information is valid. When the state information is non-proxy broadcast information, the non-proxy broadcast information is transmitted from the control output terminal of the main controller to the switch control module 500. Among them, the status information of the coaxial switch can be understood as the location information of the coaxial switch. For example, there are two substitute broadcast transmitters, namely substitute broadcast transmitter A and substitute broadcast transmitter B. If the coaxial switch is located at substitute broadcast transmitter A, that is, the antenna connected to substitute broadcast transmitter A, and substitute broadcast transmitter A has a frequency that can replace the broadcast host transmitter, then the status information of the coaxial switch is substitute broadcast information. If at this time, substitute broadcast transmitter A does not have a frequency that can replace the broadcast host transmitter, substitute broadcast transmitter B has a frequency that can replace the broadcast host transmitter, and the coaxial switch is located at substitute broadcast transmitter A, that is, the antenna connected to substitute broadcast transmitter A, then the status information of the coaxial switch is non-substitute broadcast information. A coaxial switch can be understood as an electronic component that can be used to switch signals between multiple coaxial lines.

[0066] The proxy identification module 300 can be used to receive the proxy identification coding information transmitted by the main controller 100, and determine the transmission information corresponding to the proxy identification coding information, so that the proxy broadcast transmitter can replace the host transmitter to complete the broadcast task according to the transmission information. The proxy identification coding information can be understood as the coding information corresponding to the proxy identification information of the proxy broadcast transmitter. The transmission information can be understood as the information required for the proxy broadcast transmitter to complete the proxy broadcast, and the transmission information can include, for example, the proxy identification decoding information, the proxy broadcast frequency and the proxy broadcast audio. Among them, the proxy identification decoding information can be understood as the decoded proxy identification coding information, which can distinguish which specific proxy broadcast transmitter will replace the broadcast task; the proxy broadcast frequency can be understood as the frequency broadcast by the host transmitter; the proxy broadcast audio can be understood as the sound source broadcast by the host transmitter.

[0067] The switch control module 500 can be used to control the coaxial switch to the correct state when receiving the non-substitute broadcast information transmitted by the main controller 100, that is, the position of the coaxial switch can be controlled to switch to the substitute broadcast transmitter that can broadcast on behalf of the main broadcast transmitter, that is, the substitute broadcast transmitter that can broadcast on behalf of the main broadcast transmitter is connected to the antenna. Among them, the substitute broadcast transmitter can be understood as a backup or alternative transmission device to cope with specific situations or emergency situations (such as when the main broadcast transmitter fails or is undergoing maintenance).

[0068] Exemplarily, the broadcast transmission controller includes: a main controller 100, a main identification module 200, an alternate identification module 300, a switch detection module and a switch control module 500. The input end of the main identification module 200 can be connected to the host transmitter. When the host transmitter cannot complete the broadcast task, for example, the host transmitter fails or the host transmitter is under maintenance, the input end of the main identification module 200 can automatically or manually receive the main identification information of the host transmitter, and then the main identification module 200 encodes the main identification information to obtain the main identification coding information. The main identification module 200 transmits the main identification coding information to the main identification coding input end of the main controller 100 through the main identification coding output end. While transmitting the main identification coding information, the main identification module 200 can also generate enabling information, and the main identification module 200 transmits the enabling information through the enabling output end. To the enable input terminal of the main controller 100, if the enable information is valid, the main controller 100 receives the main identification coding information through the main identification input terminal, and determines the substitute identification coding information corresponding to the main identification coding information according to the corresponding relationship set in the embedded program in the main controller 100, that is, the main controller 100 can determine the substitute broadcast transmitter that can replace the main broadcast transmitter to complete the broadcast task through the embedded program, and at the same time, the main controller 100 receives the status information of the coaxial switch through the first status input terminal, and the main controller 100 transmits the substitute identification coding information to the substitute identification module 300 through the substitute identification coding output terminal via the substitute identification coding input terminal, and the substitute identification module 300 can determine the transmission information according to the substitute identification coding information, and output the transmission information to the substitute broadcast transmitter, so that the transmitter can replace the main broadcast transmitter to complete the broadcast task.

[0069] The embodiment of the utility model provides a broadcast transmission controller, which includes: a main controller, a main identification module, a substitute identification module, a switch detection module and a switch control module; the main identification code output end of the main identification module is connected to the main identification code input end of the main controller, the enable output end of the main identification module is connected to the enable input end of the main controller, the output end of the switch detection module is connected to the first state input end of the main controller, the substitute identification code output end of the main controller is connected to the substitute identification code input end of the substitute identification module, and the control output end of the main controller is connected to the input end of the switch control module; the main identification module is used to receive the main identification information of the host transmitter , and outputs main identification coding information and enabling information; the main controller is used to receive the main identification coding information and enabling information, and output the generation identification coding information corresponding to the main identification coding information; the switch detection module is used to detect the status information of the coaxial switch, and the status information includes: generation broadcast information or non-generation broadcast information; the main controller is also used to receive the status information, and send the non-generation broadcast information from the control output end to the switch control module; the switch control module is used to receive the non-generation broadcast information, and control the coaxial switch to adjust the state according to the non-generation broadcast information; the generation identification module is used to receive the generation identification coding information, and determine the transmission information corresponding to the generation identification coding information, so that the generation broadcast transmitter works on behalf of the main broadcast transmitter. The broadcast transmission controller of the utility model helps to realize a highly intelligent and highly automated backup transmission system through the connection and coordination between the main controller, the main identification module, the generation identification module, the switch detection module and the switch control module, reduces the work intensity, and improves the efficiency of the generation broadcast failure frequency.

[0070] Figure 2 This is a schematic diagram of the structure of another broadcast transmission controller provided by an embodiment of the utility model. Figure 2 As shown, based on the above embodiment, optionally, the main identification module 200 includes: a plurality of control units 210, a main broadcast transmitter identification encoding unit 220, a proxy broadcast transmitter state detection unit 230 and an interruption unit 240;

[0071] The main identification output terminal of each control unit 210 is connected to each main identification input terminal of the host transmitter identification encoding unit 220, the main identification encoding output terminal of the host transmitter identification encoding unit 220 is connected to the main identification encoding input terminal of the main controller 100, the interrupt request output terminal of the host transmitter identification encoding unit 220 is connected to the interrupt request input terminal of the interrupt unit 240, the state output terminal of the proxy transmitter state detection unit 230 is connected to the second state input terminal of the interrupt unit 240, and the interrupt enable output terminal of the interrupt unit 240 is connected to the interrupt enable input terminal of the main controller 100;

[0072] Each of the control units 210 is used to transmit the main identification information corresponding to each anchor transmitter;

[0073] The host transmitter identification encoding unit 220 is used to transmit the host identification encoding information and the interruption request information;

[0074] The proxy broadcast transmitter state detection unit 230 is used to transmit proxy broadcast transmitter state information;

[0075] The interrupt unit 240 is used to transmit enabling information.

[0076] In this embodiment, the control unit 210 can be used to automatically or manually control the main controller 100 to drive the proxy broadcast transmitter to quickly broadcast the fault frequency. There can be up to 16 control units 210, that is, the broadcast transmission controller can broadcast up to 16 proxy broadcast frequencies. The input end of each control unit 210 is connected to an anchor transmitter. When a certain anchor transmitter fails or is undergoing maintenance, the control unit 210 corresponding to the anchor transmitter can automatically or manually receive the main identification information corresponding to the anchor transmitter. The control unit 210 can transmit the main identification information to the anchor transmitter identification encoding unit 220 through the main identification output end through the main identification input end. The main identification output end can be used to output the main identification information. The main identification input end can be used to receive the main identification information.

[0077] The host transmitter identification encoding unit 220 can be used to encode the main identification information to obtain the main identification encoding information and output the interrupt request information. The interrupt request output terminal can be used to output the interrupt request information. The interrupt request input terminal can be used to receive the interrupt request information. The interrupt request information can be understood as a signal sent when the main controller 100 needs to intervene.

[0078] The proxy transmitter state detection unit 230 can be used to detect the state of the proxy transmitter, obtain the proxy transmitter state information, and output the proxy transmitter state information to the interrupt unit 240 through the state output terminal of the proxy transmitter state detection unit 230. The proxy transmitter state information can be understood as the power on / off state information of the proxy transmitter, and the proxy transmitter state information can include the proxy transmitter power on state information or the proxy transmitter power off state information. The interrupt unit 240 can be used to receive the proxy transmitter state information through the second state input terminal, receive the interrupt request information through the interrupt request input terminal, and can be used to output the enable information through the interrupt enable output terminal.

[0079] Exemplarily, the main identification module 200 includes a plurality of control units 210, a main broadcast transmitter identification encoding unit 220, a proxy broadcast transmitter state detection unit 230, and an interruption unit 240. The input end of each control unit 210 can be connected to a main broadcast transmitter. When a special situation (failure or maintenance) occurs in a main broadcast transmitter and a proxy broadcast transmitter is required to broadcast on its behalf, the main identification information of the main broadcast transmitter can be output to the main broadcast transmitter identification encoding unit 220 through the control unit 210. The main identification information is encoded by the main broadcast transmitter identification encoding unit 220 to obtain the main identification encoding information, and the interruption request information is generated at the same time, and the main identification encoding information and the interruption request information are transmitted to the main broadcast transmitter. The request information is output to the main controller 100, and the proxy broadcast transmitter status detection unit 230 detects the proxy broadcast transmitter status information. When the interrupt unit 240 receives the interrupt request information and the received proxy broadcast transmitter status information is the proxy broadcast transmitter shutdown status information, it indicates that the enable information is valid, and the main controller 100 can receive the main identification code information through the main identification code input terminal; when the interrupt unit 240 receives the interrupt request information but the received proxy broadcast transmitter status information is the proxy broadcast transmitter power-on status information, it indicates that the enable information is invalid, and the main identification code input terminal of the main control cannot receive the main identification code information, that is, the proxy broadcast transmitter cannot perform the broadcast task on behalf of the host transmitter at this time.

[0080] The purpose of introducing the proxy broadcast transmitter status detection unit 230 in the main identification module 200 is to determine the validity of the proxy broadcast request, that is, if the proxy broadcast transmitter is in the standby state (such as the proxy broadcast transmitter shutdown state information), the proxy broadcast program can be executed smoothly. If the proxy broadcast transmitter is already in the proxy broadcast state (such as the proxy broadcast transmitter power-on state information), the interrupt request information of the host transmitter identification encoding unit 220 will be prohibited, and the current state will be maintained until the proxy broadcast ends.

[0081] Based on the above embodiments, Figure 2 As shown, optionally, the control unit 210 includes: a button unit 211, a selection unit 212, a host transmitter power detection unit 213 and a proxy broadcast logic output unit 214;

[0082] The output end of the button unit, the output end of the selection unit 212 and the output end of the host transmitter power detection unit 213 are respectively connected to the input end of the proxy broadcast logic output unit 214, and the output end of the proxy broadcast logic output unit 214 is connected to the main identification input end of the host transmitter identification encoding unit 220;

[0083] The anchor transmitter power detection unit 213 is used to transmit the anchor transmitter fault information;

[0084] The selection unit 212 is used to transmit the automatic proxy broadcast signal or the manual proxy broadcast signal;

[0085] The button unit is used to transmit a manual proxy broadcast signal to the proxy broadcast logic output unit.

[0086] In this embodiment, the selection unit 212 can be used to select a manual one-key proxy broadcast mode or an automatic proxy broadcast mode. The button unit can be used to press the button of the corresponding anchor transmitter to complete the manual one-key proxy broadcast. The anchor transmitter power detection unit 213 can be used to detect the output power of the anchor transmitter. When the output power of a certain anchor transmitter is lower than the set threshold, it indicates that the anchor transmitter needs to be surrogate broadcast. The proxy broadcast logic output unit can be used to determine whether the broadcast transmission controller wants to start the automatic proxy broadcast mode or the manual one-key proxy broadcast mode, and then output the main identification information of the corresponding anchor transmitter to the anchor transmitter identification encoding unit 220. The fault information of the anchor transmitter can be understood as the information corresponding to the power of the anchor transmitter being lower than the set threshold. It should be noted that the fault information contains the main identification information of the anchor transmitter, that is, it can be determined through the fault information which anchor transmitter has a special situation and needs to be surrogate broadcast. The automatic proxy broadcast signal can be understood as the signal corresponding to the active proxy broadcast mode selected by the selection unit 212. The manual proxy broadcast information may be understood as a signal corresponding to when the selection unit 212 selects the manual one-key proxy broadcast mode.

[0087] Exemplarily, the control unit 210 includes: a button unit 211, a selection unit 212, a host transmitter power detection unit 213 and a proxy broadcast logic output unit 214. When the selection unit 212 selects the automatic proxy broadcast mode, the selection unit 212 transmits an automatic proxy broadcast signal to the proxy broadcast logic output unit 214. The host transmitter power detection unit 213 detects the output power status of each host transmitter. When the output power of a host transmitter is lower than the set threshold, the fault information corresponding to the host transmitter is output to the proxy broadcast logic output unit 214. After receiving the automatic proxy broadcast information and the fault information, the proxy broadcast logic output unit 214 sends the main identification information to the host transmitter identification encoding unit 220 to complete the automatic proxy broadcast. If the button unit also transmits the manual proxy broadcast signal to the proxy broadcast logic output unit 214 at this time, The automatic proxy broadcast signal, that is, pressing the corresponding anchor transmitter button through the key unit, is also invalid, because the automatic proxy broadcast mode has been selected at the selection unit 212; when the selection unit 212 selects the manual one-key proxy broadcast mode, the selection unit 212 transmits the manual proxy broadcast signal to the proxy broadcast logic output unit 214, and the key unit also transmits the manual proxy broadcast signal to the proxy broadcast logic output unit 214, that is, pressing the corresponding anchor transmitter button through the key unit, and then the proxy broadcast logic output unit 214 sends the main identification information to the anchor transmitter identification encoding unit 220 to complete the manual proxy broadcast; it should be noted that when the manual one-key proxy broadcast mode is selected, even if the anchor transmitter power detection unit 213 detects that the output power of a certain anchor transmitter is lower than the set threshold, the output fault information is also in an invalid state.

[0088] Figure 3 The following is a circuit diagram of a control unit provided by an embodiment of the utility model. Figure 3 As shown, based on the above embodiment, optionally, the button unit 211 includes: a first button G1 and a first resistor R2; the selection unit 212 includes: a second button G2 and a second resistor R1; the host transmitter power detection unit 213 includes: a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6 and a comparator U4:A; the proxy broadcast logic output unit includes 214: a first OR gate U3:A, a second AND gate U6:A, a first NOT gate U7:A and a first AND gate U5:A;

[0089] The first end of the first button G1 is grounded, the second end of the first button G1 is respectively connected to the first end of the first resistor R2 and the first end of the first OR gate U3:A, the second end of the first resistor R2 is connected to a power supply, the third end of the first OR gate U3:A is connected to the first end of the first AND gate U5:A, and the third end of the first AND gate U5:A is connected to any one of the main identification input ends of the anchor transmitter identification encoding unit 220;

[0090] The first end of the second button G2 is grounded, the second end of the second button G2 is respectively connected to the first end of the second resistor R1, the second end of the first OR gate U3:A and the first end of the second AND gate U6:A, and the second end of the second resistor R1 is connected to a power supply;

[0091] The first end of the third resistor R3 is connected to the power supply, the second end of the third resistor R3 is respectively connected to the first end of the fourth resistor R4 and the first end of the comparator U4:A, the second end of the fourth resistor R4 is grounded, the first end of the fifth resistor R5 is grounded, the second end of the fifth resistor R5 serves as the input end of the anchor transmitter power detection unit 213, the fifth resistor R5 is also connected to the second end of the comparator U4:A, the third end of the comparator U4:A is connected to the power supply, the fourth end of the comparator U4:A is grounded, the fifth end of the comparator U4:A is respectively connected to the first end of the sixth resistor R6 and the second end of the second AND gate U6:A, the third end of the second AND gate U6:A is connected to the first end of the first NOT gate U7:A, and the second end of the first NOT gate U7:A is connected to the second end of the first AND gate U5:A.

[0092] Exemplarily, the third end of the first AND gate U5:A outputs a low level valid, when the second button G2 is not pressed (that is, it indicates that the selection unit 212 selects the automatic proxy broadcast mode), the selection unit 212 outputs a high level, which is given to the second end of the first OR gate U3:A and the first end of the second AND gate U6:A. At this time, regardless of whether the first button G1 of the button unit is pressed or not, the third end of the first OR gate U3:A outputs a high level, that is, the button unit is invalid at this time (that is, the manual one-key proxy broadcast function cannot be realized). When the host transmitter power detection unit 213 detects that the output power of a certain host transmitter is lower than the set threshold, the output end of the host transmitter power detection unit 213 outputs a high level to the second end of the second AND gate U6:A, and the third end of the second AND gate U6:A outputs a high level, which passes through the first NOT gate U7:A and becomes a low level, which is given to the second end of the first AND gate U5:A, and the third end of the first AND gate U5:A outputs a low level, that is, the host transmitter encoding unit can receive the main identification information, and then the automatic proxy broadcast can be completed;

[0093] When the second button G2 is pressed (indicating that the selection unit 212 selects the manual one-key proxy broadcast mode), the selection unit 212 outputs a low level and gives it to the second end of the first OR gate U3:A and the first end of the second AND gate U6:A. At this time, regardless of whether the host transmitter power detection unit 213 detects that the output power of a certain host transmitter is lower than the set threshold, that is, regardless of whether the output end of the host transmitter power detection unit 213 outputs a high level or a low level, the third end of the second AND gate U6:A outputs a low level. In other words, the host transmitter power detection unit 213 is invalid at this time (that is, the automatic proxy broadcast function cannot be realized). When the first button G1 is pressed, the second end of the first button G1 outputs a low level and gives it to the first end of the first OR gate U3:A. Then the third end of the first OR gate U3:A outputs a low level, and then the third end of the first AND gate U5:A outputs a low level, that is, the host transmitter encoding unit can receive the main identification information, and then the manual one-key proxy broadcast can be completed.

[0094] Figure 4 The circuit schematic diagram of a broadcast transmitter identification encoding unit provided by the embodiment of the utility model. Figure 4 As shown, based on the above embodiment, optionally, the anchor transmitter identification encoding unit 220 includes: a first resistor RP1, a second resistor RP2, a first encoder U1, a second encoder U2, a third AND gate U5:B, a fourth AND gate U5:C, a fifth AND gate U5:D, a second NOT gate U7:B, a third NOT gate U7:C, a fourth NOT gate U7:D and a first buffer U9:A;

[0095] The first end of the first resistor RP1 is connected to a power supply, the second end of the first resistor RP1 to the ninth end of the first resistor RP1 are connected one-to-one with the first end of the first encoder U1 to the eighth end of the first encoder U1, the first end of the first encoder U1 to the eighth end of the first encoder U1 serve as the main identification input end of the host transmitter identification encoding unit 220, the ninth end of the first encoder U1 is grounded, the tenth end of the first encoder U1 is connected to the first end of the third AND gate U5:B, the eleventh end of the first encoder U1 is connected to the first end of the fourth AND gate U5:C, the twelfth end of the first encoder U1 is connected to the first end of the fifth AND gate U5:D, and the thirteenth end of the first encoder U1 serves as the interrupt request output end of the host transmitter identification encoding unit 220;

[0096] The first end of the second resistor RP2 is connected to a power supply, the second end of the second resistor RP2 to the ninth end of the second resistor RP2 are connected one-to-one with the first end of the second encoder U2 to the eighth end of the second encoder U2, the first end of the second encoder U2 to the eighth end of the second encoder U2 serve as the main identification input end of the anchor transmitter identification encoding unit 220, the ninth end of the second encoder U2 is grounded, the tenth end of the second encoder U2 is connected to the second end of the third AND gate U5:B, the eleventh end of the second encoder U2 is connected to the second end of the fourth AND gate U5:C, the twelfth end of the second encoder U2 is connected to the The second end of the fifth AND gate U5:D is connected, the thirteenth end of the second encoder U2 is connected to the first end of the first buffer U9:A, the third end of the third AND gate U5:B is connected to the first end of the second NOT gate U7:B, the third end of the fourth AND gate U5:C is connected to the first end of the third NOT gate U7:C, the third end of the fifth AND gate U5:D is connected to the first end of the fourth NOT gate U7:D, the second end of the second NOT gate U7:B, the second end of the third NOT gate U7:C, the second end of the fourth NOT gate U7:D and the second end of the first buffer U9:A serve as the main identification encoding output end of the anchor transmitter identification encoding unit 220.

[0097] Exemplarily, U10 is the main controller 100. It should be noted that, Figure 3 The third terminal Fn of the first AND gate U5:A is connected to Figure 4 Any one of the F1-F16 connections in the circuit is valid at a low level. For example, the third end Fn of the first AND gate U5:A is connected to F1. The first end (i.e., 0) of the first encoder U1 receives the main identification information. After the first encoder U1 and the second encoder U2 are cascaded, a four-bit main identification coding information is output through the second NOT gate U7:B, the third NOT gate U7:C, the fourth NOT gate U7:D and the first buffer U9:A, and is given to the P2 port of the main controller. At the same time, the interrupt request output end (i.e., the EO port) outputs an interrupt request information at a high level. Whether the interrupt request information can trigger the interrupt program of the main controller 100 depends on the status information of the proxy transmitter.

[0098] Figure 5 The circuit schematic diagram of a transmitter status detection unit and the circuit schematic diagram of an interruption unit provided by the embodiment of the utility model. Figure 5 As shown, based on the above embodiment, optionally, the proxy transmitter state detection unit 230 includes: a seventh resistor R7, an eighth resistor R8 and a second OR gate U3:C; the interrupt unit 240 includes: a first NOR gate U8:A and a third OR gate U3:B;

[0099] The first end of the seventh resistor R7 serves as the first input end of the proxy transmitter state detection unit 230, the first end of the seventh resistor R7 is also connected to the first end of the second OR gate U3:C, the second end of the seventh resistor R7 is grounded, the first end of the eighth resistor R8 serves as the second input end of the proxy transmitter state detection unit 230, the first end of the eighth resistor R8 is also connected to the second end of the second OR gate U3:C, the second end of the eighth resistor R8 is grounded, the third end of the second OR gate U3:C is connected to the second end of the third OR gate U3:B, and the third end of the second OR gate U3:C serves as the state output end of the proxy transmitter state detection unit 230;

[0100] The first end of the first NOR gate U8:A and the second end of the first NOR gate U8:A serve as the interrupt request input end of the interrupt unit 240, the third end of the first NOR gate U8:A is connected to the first end of the third OR gate U3:B, the second end of the third OR gate U3:B serves as the second state input end of the interrupt unit 240, and the third end of the third OR gate U3:B serves as the interrupt enable output end of the interrupt unit 240 and is connected to the interrupt enable input end of the main controller 100.

[0101] For example, Figure 4 and Figure 5 As shown, U10 is the main controller 100. When the interrupt request output terminal (i.e., the EO port) outputs a high level to the first and second ends of the first OR gate U8:A, the third end of the first OR gate U8:A outputs a low level and is given to the first end of the third OR gate U3:B. When the proxy broadcast transmitter status detection unit 230 detects that the proxy broadcast transmitter status information is the proxy broadcast transmitter shutdown status information, the first end or the second end of the second OR gate U3:C is a low level, and the third end of the second OR gate U3:C outputs a low level and is given to the second end of the third OR gate U3:B. The third end of the third OR gate U3:B outputs a low level and is given to the P3 port of the main controller. Even if the information is valid, the interrupt program of the main controller 100 can be triggered to complete the proxy broadcast.

[0102] like Figure 2 As shown, based on the above embodiment, optionally, the generation identification module 300 includes: a generation broadcast transmitter identification decoding unit 310, a generation broadcast audio output unit 320, a frequency preset output unit 330 and a power-on delay unit 340; the transmission information includes the generation broadcast audio, the generation broadcast frequency and the power-on control instruction;

[0103] The proxy identification code output terminal of the main controller 100 is connected to the proxy identification code input terminal of the proxy broadcast transmitter identification decoding unit 310, and the output terminal of the proxy broadcast transmitter identification decoding unit 310 is respectively connected to the proxy broadcast audio output unit 320, the frequency preset output unit 330 and the power-on delay unit 340;

[0104] The generation transmitter identification decoding unit 310 is used to receive generation identification encoding information and output generation identification decoding information;

[0105] The proxy broadcast audio output unit 320 is used to receive proxy identification decoding information and output proxy broadcast audio;

[0106] The frequency preset output unit 330 is used to receive the generation identification decoding information and output the generation broadcast frequency;

[0107] The power-on delay unit 340 is used to output a power-on control instruction to control the power-on of the proxy broadcast transmitter.

[0108] In this embodiment, the generation transmitter identification decoding unit 310 may be configured to receive generation identification encoding information, and decode the generation identification encoding information to obtain and output generation identification decoding information.

[0109] Exemplarily, when the main controller 100 receives the main identification coding information, and determines the substitute identification coding information corresponding to the main identification coding information according to the corresponding relationship set in the embedded program in the main controller 100, the substitute identification coding information is output to the substitute broadcast transmitter identification decoding unit 310, and the substitute identification coding information is decoded by the substitute broadcast transmitter identification decoding unit 310 to obtain the substitute identification decoding information, and then the substitute identification decoding information is transmitted to the substitute broadcast audio output unit 320, the frequency preset output unit 330 and the power-on delay unit 340, the substitute broadcast audio output unit 320 obtains the substitute broadcast audio through the substitute identification decoding information, and the frequency preset output unit 330 obtains the substitute broadcast frequency through the substitute identification decoding information. When the status information of the substitute broadcast audio, the substitute broadcast frequency and the coaxial switch is the substitute broadcast information, the power-on delay unit 340 can output the power-on control instruction, and control the corresponding substitute broadcast transmitter to start according to the power-on control instruction, and then start the substitute broadcast.

[0110] Figure 6 The circuit schematic diagram of a broadcast transmitter identification decoding unit provided by the embodiment of the utility model. Figure 6 As shown, based on the above embodiment, optionally, the proxy broadcast transmitter identification decoding unit 310 includes: a first decoder U11, a second decoder U12 and a fifth NOT gate U7:E;

[0111] The first end of the first decoder U11 is connected to the first end of the second decoder U12, the second end of the first decoder U11 is connected to the second end of the second decoder U12, the third end of the first decoder U11 is connected to the third end of the second decoder U12, the fourth end of the first decoder U11 is connected to the fourth end of the second decoder U12 via the fifth NOT gate U7:E, the first end of the first decoder U11, the first end of the second decoder U12, the second end of the first decoder U11, the second end of the second decoder U12, the third end of the first decoder U11, the third end of the second decoder U12, the fourth end of the first decoder U11 and the fourth end of the second decoder U12 are the generation identification coding input ends of the generation transmitter identification decoding unit 310.

[0112] For example, Figure 5 Shown and Figure 6 As shown, U10 is the main controller 100, which transmits the generation identification coding information to the generation identification coding input end of the generation broadcast transmitter identification decoding unit 310 through the generation identification coding output end (such as P1 port), decodes the generation identification coding information through the first decoder U11 and the second encoder U2, obtains the generation identification decoding information, and then outputs the generation identification decoding information.

[0113] Figure 7 The circuit schematic diagram of a broadcast audio output unit, a frequency preset output unit and a power-on delay unit provided by the embodiment of the utility model. Figure 7 As shown, based on the above embodiment, optionally, the proxy audio output unit 320 includes: a Darlington array tube U15, a first diode D1 and a relay RL1; the power-on delay unit 340 includes: a second diode D2, a ninth resistor R9, an electrolytic capacitor C3 and a sixth NOT gate U16:A;

[0114] The first end of the Darlington array tube U15 is used to receive the generation identification decoding information, the second end of the Darlington array tube U15 is grounded, the third end of the Darlington array tube U15 is respectively connected to the positive electrode of the first diode D1 and the second end of the relay RL1, the negative electrode of the first diode D1 and the first end of the relay RL1 are connected to the power supply, the input end of the relay RL1 is connected to the main broadcast transmitter, and the output end of the relay RL1 is connected to the generation broadcast transmitter;

[0115] The cathode of the second diode D2 is connected to the first end of the ninth resistor R9, and the cathode of the second diode D2 and the first end of the ninth resistor R9 are used to receive the generation identification decoding information. The cathode of the electrolytic capacitor C3 is respectively connected to the anode of the second diode D2, the second end of the ninth resistor R9 and the first end of the sixth NOT gate U16:A, the cathode of the electrolytic capacitor C3 is grounded, and the second end of the sixth NOT gate U16:A is connected to the generation broadcast transmitter as the output end of the power-on delay unit 340.

[0116] like Figure 2 As shown, based on the above embodiment, optionally, the broadcast transmission controller further includes: a frequency display module 600;

[0117] The frequency display module 600 is electrically connected to the frequency output terminal of the main controller 100;

[0118] The frequency display module 600 is used to display the broadcast frequency.

[0119] In this embodiment, the frequency display module 600 can be used to display the proxy broadcast frequency to prompt the staff of the working status of the target proxy broadcast system.

[0120] For example, Figure 8 The following is a circuit diagram of a frequency display module provided by an embodiment of the utility model. Figure 6 and Figure 8 As shown, the frequency display module 600 is connected to the P0 port of the main controller. The frequency display module 600 is composed of a first latch U13, a second latch U14 and a four-digit digital display tube.

[0121] For example, Fig. 9 The circuit diagram of a switch detection module and a switch control module provided by the embodiment of the utility model is shown in FIG. Figure 6 and Fig. 9 As shown, the output end (i.e., COAX STAT end) of the switch detection module 400 is connected to the first state input end (i.e., P3.6 port) of the main controller 100, and the input end (i.e., COAX CMD) of the switch control module 500 is connected to the control output end (i.e., P3.7 port) of the main controller.

[0122] For example, Figure 2-Figure 9As shown, the broadcast transmission controller of the utility model is compatible with automatic proxy broadcast and manual one-key proxy broadcast functions. When the broadcast transmission controller is set in the automatic proxy broadcast mode, that is, the selection unit 212 selects the automatic proxy broadcast mode, the output power status of the host transmitter will be detected by the host transmitter power detection unit 213. When the power of a host transmitter is lower than the set threshold, the fault information of the host transmitter is transmitted to the main controller 100 through the host transmitter power detection unit 213, and the interrupt program of the main controller 100 will be triggered. At the same time, the two 16-bit to 4-bit encoders composed of 74HC148 encoding chips in the host transmitter identification encoding unit 220 encode the main identification information into the main identification encoding information and input it into the P2 end interface of the main controller 100. At this time, the main controller 100 outputs the corresponding proxy identification encoding information at the P1 port according to the corresponding relationship set by the embedded program of P1 and P2. When the manual one-key proxy broadcast mode is selected, that is, the selection unit 212 selects the manual one-key proxy broadcast mode, the output signal (such as fault information) of the anchor transmitter power detection unit 213 is in an invalid state, and even if the power of a certain anchor transmitter is lower than the set threshold, it will not trigger the main controller 100 interrupt program. The manual one-key proxy broadcast part only needs to use a key unit composed of 16 keys. In the manual one-key proxy broadcast mode, as long as the corresponding anchor transmitter button is pressed, the interrupt program of the main controller 100 will be triggered, and the subsequent process is the same as the automatic proxy broadcast mode, which will not be repeated.

[0123] When the main controller 100 detects the enable information and the main identification coding information, the corresponding 4-bit proxy identification coding information is output at the P1 port. The 4-bit proxy identification coding information is decoded by the proxy broadcast transmitter identification decoding unit 310, that is, a 16-channel decoder composed of two 74HC138 decoding chips, and the decoder output is used as the pre-signal of the proxy broadcast audio output unit 320, the frequency preset output unit 330 and the power-on delay unit 340. In the proxy broadcast audio output unit 320, when a certain channel outputs a valid signal, the Darlington array tube U15 of the subsequent stage is driven to make the corresponding relay RL1 actuated and close to complete the output of the proxy broadcast audio. The output end of the proxy broadcast audio output unit 320 is connected to the proxy broadcast audio input of the proxy broadcast transmitter. Since the proxy broadcast system is composed of two 8-frequency preset proxy broadcast transmitters, FO1-FO8 output by the first decoder U11 is connected to transmitter A, and FO9-F16 output by the second decoder U12 is connected to transmitter B. Other corresponding relationships between the power-on control instruction, proxy broadcast frequency and proxy broadcast transmitter are the same as those of the proxy broadcast audio. In the frequency preset output unit 330, the decoder output is directly connected to the frequency preset interface of the corresponding proxy broadcast transmitter, because the frequency preset of the proxy broadcast transmitter has been completed before. In the power-on delay unit 340, the pre-signal also comes from the decoder output. After the output signal is delayed for a preset time (such as about 5 seconds), it is sent to the proxy broadcast transmitter power-on command interface to complete the power-on. The purpose of the power-on delay is to ensure that the proxy broadcast audio and the proxy broadcast preset frequency are called and the coaxial switch is rotated in place. During the execution of the proxy broadcast program, the main controller 100 simultaneously detects the position of the coaxial switch. The main controller 100 will calculate the actual state of the system and analyze the relationship between the coaxial switch and the proxy broadcast transmitter. If the proxy broadcast transmitter A is in the position of the antenna and the proxy broadcast frequency is preset in the proxy broadcast transmitter B, the main controller 100 will automatically switch the coaxial switch and connect the proxy broadcast transmitter B to the antenna. The frequency display module 600 consists of two latches (such as 74HC573) and a 4-bit digital display tube. When there is a broadcast frequency output, the 4-digit digital display tube will automatically display the broadcast frequency to remind the computer room staff of the current working status of the broadcast system. If there is a frequency display, it means that the broadcast system is broadcasting, otherwise, there is no broadcast.

[0124] It should be noted that the broadcast transmission controller provided by the utility model has the following effects:

[0125] 1) This broadcast transmission controller can control a 1+1 broadcast transmission system consisting of 2 transmitters with 8 presets and a coaxial switch, which is more powerful than similar products on the market.

[0126] 2) The broadcast transmission controller can automatically detect and calculate the relationship between the coaxial switch and the proxy broadcast transmitter, and finally automatically connect the proxy broadcast transmitter to the antenna through the coaxial switch according to the proxy broadcast instruction, with a higher degree of automation and intelligence.

[0127] 3) This broadcast transmission controller is compatible with automatic broadcast and manual one-key broadcast functions, which can meet the actual broadcast needs of the computer room. The manual one-key broadcast function only requires pressing the frequency button of the corresponding anchor transmitter, and the broadcast transmission controller can automatically switch the broadcast audio and broadcast frequency. The operation is simple, which is conducive to reducing the workload of the check-in staff in the computer room.

[0128] 4) This broadcast transmission controller can be designed with a tolerance of 16 preset proxy broadcast frequencies, which can not only meet the proxy broadcast needs of FM broadcast systems in various places, but also make the application of the proxy broadcast system more flexible. Under the control of the broadcast transmission controller, it can adopt the working mode of proxy broadcasting 16 different frequencies, or it can modify the main controller program to repeat the frequency points and proxy broadcast audio of the preset proxy broadcast frequency without changing the system hardware equipment, so as to improve the working mode of the backup redundancy of the anchor system.

[0129] 5) This broadcast transmission controller can not only be used for FM broadcast transmission systems, but also for other similar broadcast transmission systems or similar fields that require system control, and has certain application and promotion value.

[0130] 6) The use of a programmable main controller reduces the scale of the hardware circuit, improves efficiency and reduces costs.

[0131] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A broadcast transmission controller, characterized in that: The broadcast transmission controller includes: a main controller, a main identification module, a generation identification module, a switch detection module and a switch control module; The main identification code output terminal of the main identification module is connected to the main identification code input terminal of the main controller, the enable output terminal of the main identification module is connected to the enable input terminal of the main controller, the output terminal of the switch detection module is connected to the first state input terminal of the main controller, the substitute identification code output terminal of the main controller is connected to the substitute identification code input terminal of the substitute identification module, and the control output terminal of the main controller is connected to the input terminal of the switch control module; The main identification module is used to receive the main identification information of the main broadcast transmitter, and output the main identification coding information and the enabling information; the main controller is used to receive the main identification coding information and the enabling information, and output the proxy identification coding information corresponding to the main identification coding information; the switch detection module is used to detect the state information of the coaxial switch, and the state information includes: proxy broadcast information or non-proxy broadcast information; The main controller is also used to receive status information and send non-substitute broadcast information from the control output end to the switch control module; the switch control module is used to receive non-substitute broadcast information and control the coaxial switch to adjust the state according to the non-substitute broadcast information; the substitute identification module is used to receive the substitute identification coding information and determine the transmission information corresponding to the substitute identification coding information so that the substitute broadcast transmitter works on behalf of the host transmitter.

2. The broadcast transmission controller according to claim 1, characterized in that: The main identification module includes: a plurality of control units, a main broadcast transmitter identification encoding unit, a proxy broadcast transmitter state detection unit and an interruption unit; The main identification output terminal of each control unit is connected to each main identification input terminal of the host transmitter identification encoding unit, the main identification encoding output terminal of the host transmitter identification encoding unit is connected to the main identification encoding input terminal of the main controller, the interrupt request output terminal of the host transmitter identification encoding unit is connected to the interrupt request input terminal of the interrupt unit, the state output terminal of the proxy transmitter state detection unit is connected to the second state input terminal of the interrupt unit, and the interrupt enable output terminal of the interrupt unit is connected to the interrupt enable input terminal of the main controller; Each of the control units is used to transmit the main identification information corresponding to each anchor transmitter; The host transmitter identification encoding unit is used to transmit the host identification encoding information and the interruption request information; The proxy broadcast transmitter state detection unit is used to transmit proxy broadcast transmitter state information; The interrupt unit is used to transmit enabling information.

3. The broadcast transmission controller according to claim 2, characterized in that: The control unit includes: a key unit, a selection unit, a main broadcast transmitter power detection unit and a proxy broadcast logic output unit; The output end of the button unit, the output end of the selection unit and the output end of the host transmitter power detection unit are respectively connected to the input end of the proxy broadcast logic output unit, and the output end of the proxy broadcast logic output unit is connected to the main identification input end of the host transmitter identification encoding unit; The anchor transmitter power detection unit is used to transmit the fault information of the anchor transmitter; The selection unit is used to transmit an automatic proxy broadcast signal or a manual proxy broadcast signal; The button unit is used to transmit a manual proxy broadcast signal to the proxy broadcast logic output unit.

4. The broadcast transmission controller according to claim 3, characterized in that: The key unit includes: a first key and a first resistor; the selection unit includes: a second key and a second resistor; the host transmitter power detection unit includes: a third resistor, a fourth resistor, a fifth resistor, a sixth resistor and a comparator; the proxy broadcast logic output unit includes: a first OR gate, a second AND gate, a first NOT gate and a first AND gate; The first end of the first button is grounded, the second end of the first button is respectively connected to the first end of the first resistor and the first end of the first OR gate, the second end of the first resistor is connected to a power supply, the third end of the first OR gate is connected to the first end of the first AND gate, and the third end of the first AND gate is connected to any one of the main identification input ends of the anchor transmitter identification encoding unit; The first end of the second button is grounded, the second end of the second button is respectively connected to the first end of the second resistor, the second end of the first OR gate and the first end of the second AND gate, and the second end of the second resistor is connected to a power supply; The first end of the third resistor is connected to a power supply, the second end of the third resistor is respectively connected to the first end of the fourth resistor and the first end of the comparator, the second end of the fourth resistor is grounded, the first end of the fifth resistor is grounded, the second end of the fifth resistor serves as the input end of the anchor transmitter power detection unit, the fifth resistor is also connected to the second end of the comparator, the third end of the comparator is connected to a power supply, the fourth end of the comparator is grounded, the fifth end of the comparator is respectively connected to the first end of the sixth resistor and the second end of the second AND gate, the third end of the second AND gate is connected to the first end of the first NOT gate, and the second end of the first NOT gate is connected to the second end of the first AND gate.

5. The broadcast transmission controller according to claim 2, characterized in that: The anchor transmitter identification encoding unit includes: a first row of resistors, a second row of resistors, a first encoder, a second encoder, a third AND gate, a fourth AND gate, a fifth AND gate, a second NOT gate, a third NOT gate, a fourth NOT gate and a first buffer; The first end of the first resistor is connected to a power supply, the second end of the first resistor to the ninth end of the first resistor are connected to the first end of the first encoder to the eighth end of the first encoder in a one-to-one correspondence, the first end of the first encoder to the eighth end of the first encoder serve as a main identification input end of the host transmitter identification encoding unit, the ninth end of the first encoder is grounded, the tenth end of the first encoder is connected to the first end of the third AND gate, the eleventh end of the first encoder is connected to the first end of the fourth AND gate, the twelfth end of the first encoder is connected to the first end of the fifth AND gate, and the thirteenth end of the first encoder serves as an interrupt request output end of the host transmitter identification encoding unit; The first end of the second resistor is connected to a power supply, the second end of the second resistor to the ninth end of the second resistor are connected in a one-to-one correspondence with the first end of the second encoder to the eighth end of the second encoder, the first end of the second encoder to the eighth end of the second encoder serve as a main identification input end of the host transmitter identification encoding unit, the ninth end of the second encoder is grounded, the tenth end of the second encoder is connected to the second end of the third AND gate, the eleventh end of the second encoder is connected to the second end of the fourth AND gate, the twelfth end of the second encoder is connected to the second end of the fifth AND gate, the thirteenth end of the second encoder is connected to the first end of the first buffer, the third end of the third AND gate is connected to the first end of the second NOT gate, the third end of the fourth AND gate is connected to the first end of the third NOT gate, the third end of the fifth AND gate is connected to the first end of the fourth NOT gate, the second end of the second NOT gate, the second end of the third NOT gate, the second end of the fourth NOT gate and the second end of the first buffer serve as the main identification encoding output end of the host transmitter identification encoding unit.

6. The broadcast transmission controller according to claim 2, characterized in that: The proxy broadcast transmitter state detection unit includes: a seventh resistor, an eighth resistor and a second OR gate; the interruption unit includes: a first NOR gate and a third OR gate; The first end of the seventh resistor serves as the first input end of the proxy transmitter state detection unit, the first end of the seventh resistor is also connected to the first end of the second OR gate, the second end of the seventh resistor is grounded, the first end of the eighth resistor serves as the second input end of the proxy transmitter state detection unit, the first end of the eighth resistor is also connected to the second end of the second OR gate, the second end of the eighth resistor is grounded, the third end of the second OR gate is connected to the second end of the third OR gate, and the third end of the second OR gate serves as the state output end of the proxy transmitter state detection unit; The first end of the first NOR gate and the second end of the first NOR gate serve as an interrupt request input end of the interrupt unit, the third end of the first NOR gate is connected to the first end of the third OR gate, the second end of the third OR gate serves as a second state input end of the interrupt unit, and the third end of the third OR gate serves as an interrupt enable output end of the interrupt unit and is connected to the interrupt enable input end of the main controller.

7. The broadcast transmission controller according to claim 1, characterized in that: The generation identification module includes: a generation broadcast transmitter identification decoding unit, a generation broadcast audio output unit, a frequency preset output unit and a power-on delay unit; the transmission information includes the generation broadcast audio, the generation broadcast frequency and the power-on control instruction; The proxy identification code output terminal of the main controller is connected to the proxy identification code input terminal of the proxy broadcast transmitter identification decoding unit, and the output terminal of the proxy broadcast transmitter identification decoding unit is respectively connected to the proxy broadcast audio output unit, the frequency preset output unit and the power-on delay unit; The generation transmitter identification decoding unit is used to receive the generation identification encoding information and output the generation identification decoding information; The proxy broadcast audio output unit is used to receive proxy identification decoding information and output proxy broadcast audio; The frequency preset output unit is used to receive the generation identification decoding information and output the generation broadcast frequency; The power-on delay unit is used to output a power-on control instruction to control the power-on of the proxy broadcast transmitter.

8. The broadcast transmission controller according to claim 7, characterized in that: The proxy broadcast transmitter identification decoding unit includes: a first decoder, a second decoder and a fifth NOT gate; The first end of the first decoder is connected to the first end of the second decoder, the second end of the first decoder is connected to the second end of the second decoder, the third end of the first decoder is connected to the third end of the second decoder, the fourth end of the first decoder is connected to the fourth end of the second decoder via the fifth NOT gate, the first end of the first decoder, the first end of the second decoder, the second end of the first decoder, the third end of the first decoder, the third end of the second decoder, the fourth end of the first decoder and the fourth end of the second decoder are the generation identification coding input ends of the generation transmitter identification decoding unit.

9. The broadcast transmission controller according to claim 7, characterized in that: The proxy audio output unit includes: a Darlington array tube, a first diode and a relay; the power-on delay unit includes: a second diode, a ninth resistor, an electrolytic capacitor and a sixth NOT gate; The first end of the Darlington array tube is used to receive the generation identification decoding information, the second end of the Darlington array tube is grounded, the third end of the Darlington array tube is respectively connected to the positive electrode of the first diode and the second end of the relay, the negative electrode of the first diode and the first end of the relay are connected to the power supply, the input end of the relay is connected to the main broadcast transmitter, and the output end of the relay is connected to the generation broadcast transmitter; The cathode of the second diode is connected to the first end of the ninth resistor, and the cathode of the second diode and the first end of the ninth resistor are used to receive the generation identification decoding information. The cathode of the electrolytic capacitor is respectively connected to the anode of the second diode, the second end of the ninth resistor and the first end of the sixth NOT gate. The cathode of the electrolytic capacitor is grounded, and the second end of the sixth NOT gate is connected to the generation broadcast transmitter as the output end of the power-on delay unit.

10. The broadcast transmission controller according to claim 1, characterized in that: The broadcast transmission controller further includes: a frequency display module; The frequency display module is electrically connected to the frequency output terminal of the main controller; The frequency display module is used to display the broadcast frequency.

Images