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CN-224218400-U - Alarm type judging device of broadcast transmitting system

CN224218400UCN 224218400 UCN224218400 UCN 224218400UCN-224218400-U

Abstract

The embodiment of the utility model discloses an alarm type judging device of a broadcast transmitting system, which is used for judging the alarm type of a multi-channel broadcast transmitting system. The alarm type judging device of the broadcast transmitting system comprises a preprocessing module, an alarm signal input module, an output logic control module, a switching output module, a logic level conversion module, a display module and a control module. When fault alarm occurs, on-duty personnel can know the type of the fault in time so as to save fault judging time and quickly make effective emergency treatment. The problem that a check-in person and a maintainer cannot intuitively and timely know the alarm type of the fault transmitting system is solved. The multi-channel alarm signal monitoring can be realized, and the monitoring requirement of more frequency modulation broadcast transmitting systems is met.

Inventors

  • HAN JINGHAI

Assignees

  • 上海东方明珠传输有限公司

Dates

Publication Date
20260508
Application Date
20250429

Claims (10)

  1. 1. The alarm type judging device of the broadcast transmitting system is characterized by comprising a preprocessing module, an alarm signal input module, an output logic control module, a switching output module, a logic level conversion module, a display module and a control module; Each first input end of the preprocessing module is connected with a shutdown alarm signal of one path of broadcast transmitting system, and each second input end of the preprocessing module is connected with a main-standby machine switching alarm signal of one path of broadcast transmitting system and is used for converting the shutdown alarm signal of each path of broadcast transmitting system into one path of first voltage signal and converting the main-standby machine switching alarm signal of each path of transmitting system into one path of second voltage signal; Each input end of the alarm signal input module is connected with each output end of the preprocessing module in a one-to-one correspondence manner, each output end of the alarm signal input module is connected with each input end of the output logic control module, and each path of first voltage signal and/or second voltage signal is electrically isolated through the alarm signal input module and then output to the output logic control module; The control end of the output logic control module is connected with the first output end of the control module, each output end of the output logic control module is respectively connected with each input end of the switching output module and each first input end of the display module in a one-to-one correspondence manner, the output logic control module is used for sequentially gating one input end and one output end of the output logic control module according to control signals provided by the control module, the display module is used for judging the type of alarm signals of each path of broadcast transmitting system according to the output end of the output logic control module, the control end of the switching output module is connected with the first output end of the control module, the output end of the switching output module is connected with the input end of the logic level conversion module, and the switching output module is used for gating one input end and one output end of the switching output module according to the control signals provided by the control module; The output end of the logic level conversion module is connected with the first input end of the control module, and the logic level conversion module is used for converting one path of first voltage signal and/or second voltage signal output by the switching output module into logic level signals to be output; The second output end of the control module is connected with the second input end of the display module, and the control module is used for determining the type of the alarm signal of the broadcast transmitting system according to the logic level signal; the display module is also used for displaying the fault frequency number of the broadcast transmitting system.
  2. 2. The alarm type judging device of the broadcast transmitting system according to claim 1, wherein the preprocessing module comprises a multi-path preprocessing unit, the preprocessing unit comprising a first resistor, a second resistor, a first voltage follower, a first diode, a third resistor, a fourth resistor, a second voltage follower and a second diode; The first end of the first resistor is connected with one path of shutdown alarm signals of the emission system, the second end of the first resistor is respectively connected with the positive input end of the first voltage follower and the first end of the second resistor, the second end of the second resistor is grounded, the negative input end of the first voltage follower is connected with the output end of the first voltage follower, the output end of the first voltage follower is also connected with the positive electrode of the first diode, the negative electrode of the first diode is connected with the negative electrode of the second diode, and the negative electrode of the first diode is connected with one input end of the alarm signal input module; The first end of the third resistor is connected with one path of main-standby machine switching alarm signals of the transmitting system, the second end of the third resistor is connected with the positive input end of the second voltage follower and the first end of the fourth resistor, the second end of the fourth resistor is grounded, the negative input end of the second voltage follower is connected with the output end of the second voltage follower, and the output end of the second voltage follower is connected with the positive electrode of the second diode.
  3. 3. The alarm type judging device of the broadcast transmitting system according to claim 1, wherein the alarm signal input module comprises a multi-channel alarm signal input unit, the alarm signal input unit comprises a third diode and a fifth resistor, the positive electrode of the third diode is connected with an output end of the preprocessing module, the negative electrode of the third diode is respectively connected with an input end of the output logic control module and a first end of the fifth resistor, and the second end of the fifth resistor is grounded.
  4. 4. The alarm type judging device of the broadcast transmitting system according to claim 1, wherein the output logic control module comprises a decoder and a multi-output logic control unit, the output logic control unit comprises a first analog switch and a first NOT gate, the input end of the first analog switch is connected with an output end of the alarm signal input module, the output end of the first analog switch is respectively connected with a first input end of the display module and an input end of the switching output module, the input end of the first NOT gate is connected with the output end of the decoder, the output end of the first NOT gate is connected with the control end of the first analog switch, and the input end of the decoder is connected with the first output end of the control module.
  5. 5. The alarm type judging device of the broadcast transmitting system according to claim 4, wherein the output logic control module further comprises a first toggle switch and a first resistor, the first end of the first toggle switch is connected with the control end of the plurality of paths of first analog switches and the first end of the first resistor respectively, the second end of the first resistor is grounded, the second end of the first toggle switch is connected with the output ends of the plurality of paths of first NOT gates, and the first toggle switch is used for closing the input ends and the output ends of one path of first analog switches when the transmitting system is normally turned off.
  6. 6. The alarm type judging device of the broadcast transmitting system according to claim 1, wherein the switching output module comprises a second analog switch and a sixth resistor, an input end of the second analog switch is connected with an output end of the output logic control module in one-to-one correspondence, a control end of the second analog switch is connected with a first end of the control module, an output end of the second analog switch is connected with a first end of the sixth resistor and an input end of the logic level conversion module, and a second end of the sixth resistor is grounded.
  7. 7. The alarm type judging device of the broadcast transmitting system according to claim 1, wherein the logic level converting module includes a seventh resistor, an eighth resistor, a ninth resistor, a first comparator, a first or gate, a tenth resistor, an eleventh resistor, a second comparator, a twelfth resistor, and a first buffer; The first end of the seventh resistor is connected with a power signal, the second end of the seventh resistor is connected with the first end of the eighth resistor, the second end of the eighth resistor is grounded, the negative input end of the first comparator is connected with the second end of the seventh resistor, the positive input end of the first comparator is connected with the output end of the switching output module, the power end of the first comparator is connected with the power signal, the grounding end of the first comparator is grounded, the output end of the first comparator is connected with the first input end of the first OR gate, the first end of the ninth resistor is connected with the power end of the first comparator, and the second end of the ninth resistor is connected with the output end of the first comparator; The first end of the tenth resistor is connected with a power signal, the second end of the tenth resistor is connected with the first end of the eleventh resistor, the second end of the eleventh resistor is grounded, the positive input end of the second comparator is connected with the switching output module, the negative input end of the second comparator is connected with the second end of the tenth resistor, the power end of the second comparator is connected with the power signal, the ground of the second comparator is grounded, the first end of the twelfth resistor is connected with the power end of the second comparator, the output end of the second comparator is respectively connected with the second end of the twelfth resistor, the second input end of the first or gate and the positive electrode of the first buffer, the negative electrode of the first buffer is connected with the first input end of the control module, and the output end of the first or gate is connected with the first input end of the control module.
  8. 8. The alarm type judging device of the broadcast transmitting system according to claim 1, wherein the display module comprises a multi-channel machine room alarm unit and a remote alarm counting unit, each input end of the machine room alarm unit is connected with each output end of the output logic control module in a one-to-one correspondence manner, the machine room alarm unit is used for alarming according to a first voltage signal and/or a second voltage signal output by the output logic control module, the input end of the remote alarm counting unit is connected with the second output end of the control module, and the remote alarm counting unit is used for displaying the fault frequency number of the broadcast transmitting system.
  9. 9. The alarm type judging device of the broadcast transmitting system according to claim 8, wherein the machine room alarm unit includes a third voltage follower, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a third comparator, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a fourth comparator, a first nor gate, a third nor gate, a first latch, a reset button, a nineteenth resistor, a first light emitting diode, a twentieth resistor, a fourth nor gate, a second latch, a second light emitting diode, and a twenty first resistor; The positive input end of the third voltage follower is connected with an output end of the output logic control module, the negative input end of the third voltage follower is connected with the output end of the third voltage follower, the power end of the third voltage follower is connected with a power signal, the grounding end of the third voltage follower is grounded, the output end of the third voltage follower is also connected with the positive input end of the third comparator and the positive input end of the fourth comparator respectively, the first end of the thirteenth resistor is connected with the power signal, the second end of the thirteenth resistor is connected with the first end of the fourteenth resistor, the second end of the fourteenth resistor is grounded, the negative input end of the third comparator is connected with the second end of the thirteenth resistor, the power end of the third comparator is connected with the power signal, the grounding end of the third comparator is grounded, the output end of the third comparator is respectively connected with the first input end of the first NOR gate and the first end of the fifteenth resistor, the second end of the fifteenth resistor is connected with the power end of the third comparator, the first end of the sixteenth resistor is connected with a power signal, the second end of the sixteenth resistor is connected with the first end of the seventeenth resistor, the second end of the seventeenth resistor is grounded, the negative input end of the fourth comparator is connected with the second end of the sixteenth resistor, the output end of the fourth comparator is respectively connected with the first end of the eighteenth resistor, the second input end of the first NOR gate and the input end of the fourth NOR gate, the second end of the eighteenth resistor is connected with the power end of the fourth comparator, the output end of the first NOR gate is connected with the input end of the third NOR gate, the output end of the third NOT gate is connected with the first end of the first latch, the second end of the first latch is grounded, the third end of the first latch is connected with the first end of the reset button and the first end of the nineteenth resistor respectively, the second end of the reset button is connected with a power signal, the second end of the nineteenth resistor is grounded, the fourth end of the first latch is connected with the power signal, the fifth end of the first latch is connected with the negative electrode of the first light emitting diode, the positive electrode of the first light emitting diode is connected with the first end of the twentieth resistor, the second end of the twentieth resistor is connected with the power signal, the output end of the fourth NOT gate is connected with the first end of the second latch, the second end of the second latch is grounded, the third end of the second latch is connected with the first end of the reset button and the first end of the ninth resistor respectively, the fourth end of the second latch is connected with the power signal, the fifth end of the second latch is connected with the second end of the twenty-fourth resistor, the fourth end of the second latch is connected with the second light emitting diode, and the twenty-fourth end of the second light emitting diode is connected with the second end of the twenty-fourth resistor.
  10. 10. The alarm type judging device of the broadcast transmitting system according to claim 8, wherein the remote alarm counting unit comprises a nixie tube, a first D trigger latch and a second D trigger latch, wherein a first end of the first D trigger latch and a first end of the second D trigger latch are both connected with the second output end of the control module, a second end of the first D trigger latch is connected with the first end of the nixie tube, a third end of the first D trigger latch is grounded, a second end of the second D trigger latch is connected with the second end of the nixie tube, and a third end of the second D trigger latch is grounded.

Description

Alarm type judging device of broadcast transmitting system Technical Field The utility model relates to the technical field of alarm processing, in particular to an alarm type judging device of a broadcast transmitting system. Background The monitoring alarm system equipped for the current frequency modulation broadcast transmitting station is divided into an audio alarm system and a carrier alarm system. The audio alarm system can send out alarm prompt when a program with a certain frequency is interrupted. When a certain broadcast frequency transmitter fails, the carrier alarm system can immediately respond to inform the personnel of which frequency carrier is interrupted. And in the actual program monitoring process, if the first response of the carrier alarming phenomenon occurs, the personnel check which frequency program has carrier drop, and the next step after determining the fault frequency is to go to a machine room to observe what problem happens to the fault frequency, whether further emergency treatment is needed, and the like. The time spent in the above process is immeasurably costly if further emergency treatment is required. Sometimes, the fault frequency may be just carrier wave momentary drop, so that the fault phenomenon is disappeared when the attendant does not react, which brings inconvenience to the technical maintenance personnel of the machine room to find out the equipment fault. Disclosure of utility model The utility model provides an alarm type judging device of a broadcast transmitting system, which aims to solve the problem that a check-in personnel and maintenance personnel cannot intuitively and timely know the alarm type of a fault transmitting system. The utility model provides an alarm type judging device of a broadcast transmitting system, which is used for judging the alarm type of a multi-channel broadcast transmitting system, wherein the alarm type judging device of the broadcast transmitting system comprises a preprocessing module, an alarm signal input module, an output logic control module, a switching output module, a logic level conversion module, a display module and a control module; Each first input end of the preprocessing module is connected with a shutdown alarm signal of one path of broadcast transmitting system, and each second input end of the preprocessing module is connected with a main-standby machine switching alarm signal of one path of broadcast transmitting system and is used for converting the shutdown alarm signal of each path of broadcast transmitting system into one path of first voltage signal and converting the main-standby machine switching alarm signal of each path of transmitting system into one path of second voltage signal; Each input end of the alarm signal input module is connected with each output end of the preprocessing module in a one-to-one correspondence manner, each output end of the alarm signal input module is connected with each input end of the output logic control module, and each path of first voltage signal and/or second voltage signal is electrically isolated through the alarm signal input module and then output to the output logic control module; The control end of the output logic control module is connected with the first output end of the control module, each output end of the output logic control module is respectively connected with each input end of the switching output module and each first input end of the display module in a one-to-one correspondence manner, the output logic control module is used for sequentially gating one input end and one output end of the output logic control module according to control signals provided by the control module, the display module is used for judging the type of alarm signals of each path of broadcast transmitting system according to the output end of the output logic control module, the control end of the switching output module is connected with the first output end of the control module, the output end of the switching output module is connected with the input end of the logic level conversion module, and the switching output module is used for gating one input end and one output end of the switching output module according to the control signals provided by the control module; The output end of the logic level conversion module is connected with the first input end of the control module, and the logic level conversion module is used for converting one path of first voltage signal and/or second voltage signal output by the switching output module into logic level signals to be output; The second output end of the control module is connected with the second input end of the display module, and the control module is used for determining the type of the alarm signal of the broadcast transmitting system according to the logic level signal; the display module is also used for displaying the fault frequency number of the broadcast transmitting system. Optionally, the preproces