Medium wave station remote automatic monitoring main and standby antenna tuning network switching system

Abstract

The application relates to a medium wave station remote automatic monitoring main and standby antenna tuning network switching system comprising a machine room control box comprising a first switch power supply, a main and standby change-over switch, a first intermediate relay, a first standby network indicating lamp, and a first main network indicating lamp; the first intermediate relay comprises a first intermediate relay normally-closed node, a first intermediate relay normally-open node and a first intermediate relay coil; the network switching box comprises a second switching power supply, a second intermediate relay, a vacuum relay, a second standby network indicating lamp and a second main network indicating lamp; the second intermediate relay comprises a second intermediate relay normally-closed node, a second intermediate relay normally-open node and a second intermediate relay coil. According to the invention, the switching state of the main and standby antenna tuning networks can be accurately displayed, the damage probability of a transmitter is reduced, the fault finding and solving time is saved, and the probability of a stop-broadcasting accident of a transmitting station is reduced.

Description

Technical Field

[0001] The present application relates to the field of antenna adjustment networks, and in particular to a medium wave station remote automatic monitoring main and standby antenna adjustment network switching system. Background Art

[0002] With the continuous upgrading of medium wave transmitter equipment, the automatic or manual switching systems for primary and backup power supplies, primary and backup signal sources, primary and backup transmitters, and primary and backup antenna tuning networks have become increasingly sophisticated, greatly improving the stability of radio broadcasts. When using an medium wave transmitter, if the primary antenna tuning network fails, it is necessary to immediately switch to the backup antenna tuning network to avoid broadcast interruptions.

[0003] At present, the main and backup antenna tuner network switching method of the commonly used medium-wave transmitter configuration is to cooperate with the transmitter room switching control box and the antenna adjustment room network switching switch. When the main antenna tuner network fails, the transmitter room switching control box switch is turned on, and the antenna adjustment room network switching switch is switched to the backup antenna tuner network, thereby realizing the switching of the backup antenna tuner network.

[0004] However, when the switching switch in the antenna adjustment room fails, the main and backup antenna tuning networks cannot be switched into place after the switching switch in the transmitter room is turned on. Also, since the transmitter room is too far away from the antenna adjustment room, the on-duty personnel in the transmitter room cannot obtain the status of the main and backup antenna tuning networks, resulting in the inability to discover the fault information in the first place, which can easily cause broadcast suspension accidents. It is also easy to misjudge the status of the main and backup antenna tuning networks, which can easily cause damage to the transmitter when the transmitter is turned on.

[0005] Therefore, it is necessary to provide a new technical solution to improve one or more problems existing in the above solutions. Utility Model Content

[0006] The purpose of this application is to provide a medium wave station remote automatic monitoring main and backup antenna network switching system, which can accurately display the switching status of the main and backup antenna networks, reduce the probability of transmitter damage, save fault finding and solving time, and reduce the probability of transmitter station suspension accidents.

[0007] To achieve the purpose of this application, this application provides the following technical solutions:

[0008] The present application provides a medium wave station remote automatic monitoring main and standby antenna tuner network switching system, comprising: a machine room control box, including a first switching power supply, a main and standby switching switch, a first intermediate relay, a first standby network indicator light, and a first main network indicator light; the first intermediate relay includes a first intermediate relay normally closed node, a first intermediate relay normally open node, and a first intermediate relay coil;

[0009] A network switching box includes a second switching power supply, a second intermediate relay, a vacuum relay, a second backup network indicator light, and a second main network indicator light; the second intermediate relay includes a second intermediate relay normally closed node, a second intermediate relay normally open node, and a second intermediate relay coil;

[0010] The first switching power supply is connected in series with the first circuit, the second circuit and the third circuit respectively; and the first circuit, the second circuit and the third circuit are connected in parallel;

[0011] The first circuit includes the first intermediate relay normally open node, the first backup network indicator light and the second intermediate relay normally open node connected in series;

[0012] The second circuit includes the first intermediate relay normally closed node, the first main network indicator light and the second intermediate relay normally closed node connected in series;

[0013] The third circuit includes the main and standby switching switches and the first intermediate relay coil connected in series;

[0014] The second switching power supply is connected in series with the fourth circuit, the fifth circuit and the sixth circuit respectively; and the fourth circuit, the fifth circuit and the sixth circuit are connected in parallel;

[0015] The fourth circuit includes the normally open node of the second intermediate relay and the vacuum relay connected in series, and the normally open node of the second intermediate relay and the second standby network indicator light connected in series; and the vacuum relay and the second standby network indicator light are connected in parallel;

[0016] The fifth circuit includes the second intermediate relay normally closed node and the second main network indicator light connected in series;

[0017] The sixth circuit includes the first intermediate relay normally-open node and the second intermediate relay coil connected in series.

[0018] In a possible implementation, the positive electrode of the first switching power supply is connected to the positive electrode of the first intermediate relay coil through the active / standby switch, and the negative electrode of the first intermediate relay coil is connected to the negative electrode of the first switching power supply;

[0019] The positive electrode of the first switching power supply is connected to the positive electrode of the first main network indicator light through the normally closed node of the first intermediate relay, and the negative electrode of the first main network indicator light is connected to the negative electrode of the first switching power supply through the normally closed node of the second intermediate relay;

[0020] The positive electrode of the first switching power supply is connected to the positive electrode of the first standby network indicator light through the normally-open node of the first intermediate relay, and the negative electrode of the first standby network indicator light is connected to the negative electrode of the first switching power supply through the normally-open node of the second intermediate relay;

[0021] The master-slave switch, the first intermediate relay normally closed node and the first intermediate relay normally open node are connected in parallel.

[0022] In a possible implementation, the positive electrode of the second switching power supply is connected to the positive electrode of the second intermediate relay coil through the normally-open node of the first intermediate relay, and the negative electrode of the second intermediate relay coil is connected to the negative electrode of the second switching power supply;

[0023] The positive electrode of the second switching power supply is connected to the positive electrode of the second main network indicator light through the normally closed node of the second intermediate relay, and the negative electrode of the second main network indicator light is connected to the negative electrode of the second switching power supply;

[0024] The positive electrode of the second switching power supply is connected to the positive electrode of the second standby network indicator light and the positive electrode of the vacuum relay through the normally open node of the second intermediate relay; the negative electrode of the second standby network indicator light and the negative electrode of the vacuum relay are connected to the negative electrode of the second switching power supply;

[0025] Wherein, the second backup network indicator light and the vacuum relay are connected in parallel.

[0026] In a possible implementation, the machine room control box further includes a first filter;

[0027] The positive electrode of the first switching power supply is connected to the active / standby switch, the normally closed node of the first intermediate relay, and the normally open node of the first intermediate relay through the positive electrode of the first filter;

[0028] The cathode of the first main network indicator light, the cathode of the first standby network indicator light and the cathode of the first intermediate relay coil are connected, and are connected to the cathode of the first switching power supply through the cathode of the first filter.

[0029] In a possible implementation, the computer room control box further includes a first filter switch; the output live wire of the first filter switch is connected to the live wire terminal of the first switching power supply, and the output neutral wire of the first filter switch is connected to the neutral wire terminal of the first switching power supply.

[0030] In a possible implementation, the network switch box further includes a second filter;

[0031] The positive pole of the second switching power supply is connected to the positive pole of the second intermediate relay coil through the positive pole of the second filter; the negative pole of the second intermediate relay coil is connected to the negative pole of the second switching power supply through the negative pole of the second filter.

[0032] In a possible implementation, the network switching box further includes a second filter switch; the output live wire of the second filter switch is connected to the live wire terminal of the second switching power supply, and the output neutral wire of the second filter switch is connected to the neutral wire terminal of the second switching power supply.

[0033] In a possible implementation, the computer room control box further includes a first communication interface, and the network switch box further includes a second communication interface, and the first communication interface is connected to the second communication interface;

[0034] The negative electrode of the first main network indicator light is connected to one end of the normally closed node of the second intermediate relay through the connected first communication interface and the second communication interface;

[0035] The cathode of the first backup network indicator light is connected to one end of the normally open node of the second intermediate relay through the connected first communication interface and the second communication interface;

[0036] The other end of the normally closed node of the second intermediate relay is connected to the negative electrode of the first switching power supply through the first communication interface and the second communication interface;

[0037] The other end of the normally-open node of the second intermediate relay is connected to the negative electrode of the first switching power supply through the first communication interface and the second communication interface.

[0038] In a possible implementation manner, the positive electrode of the second switching power supply is connected to one end of the normally open node of the first intermediate relay through the connected first communication interface and the second communication interface;

[0039] The other end of the normally-open node of the first intermediate relay is connected to the positive electrode of the second intermediate relay coil through the first communication interface and the second communication interface.

[0040] In a possible implementation manner, the vacuum relay is connected to the main antenna modulation network and the backup antenna modulation network.

[0041] The technical solution provided by this application may have the following beneficial effects:

[0042] The present application provides a medium wave station remote automatic monitoring main and standby antenna tuner network switching system, which enables the machine room control box in the transmitter room and the network switching box in the antenna adjustment room to exchange information, and displays the status of the main and standby antenna tuner network in real time on the machine room control box and the network switching box, thereby helping the transmitter room on-duty personnel to accurately judge the status of the main and standby antenna tuner network, reduce the probability of the transmitter station going offline, reduce the probability of transmitter damage, and save troubleshooting and resolution time. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram showing the structure of a network switching system for remote automatic monitoring of a main and standby antenna tuner for a medium wave station in an exemplary embodiment of the present application is shown;

[0044] Figure 2 A schematic diagram showing the structure of a control box in a machine room of a medium wave station remote automatic monitoring main and standby antenna tuner network switching system in an exemplary embodiment of the present application is shown;

[0045] Figure 3 A schematic diagram showing the structure of a network switch box of a network switch system for remote automatic monitoring of a main and standby antenna tuner for a medium wave station in an exemplary embodiment of the present application is shown;

[0046] Figure 4 A schematic diagram showing the structure of an intermediate relay in a network switching system for remote automatic monitoring of a main and standby antenna tuner for a medium wave station in an exemplary embodiment of the present application is shown;

[0047] Figure 5 A schematic diagram of the front structure of a control box housing in a machine room of a medium wave station remote automatic monitoring main and standby antenna tuner network switching system in an exemplary embodiment of the present application is shown;

[0048] Figure 6 A schematic diagram showing the back structure of a control box housing in a machine room of a medium wave station remote automatic monitoring main and standby antenna tuner network switching system in an exemplary embodiment of the present application is shown;

[0049] Figure 7 A schematic diagram of the front structure of a network switching box housing of a network switching system for remote automatic monitoring of a main and standby antenna tuner for a medium wave station in an exemplary embodiment of the present application is shown;

[0050] Figure 8 A schematic side structural diagram of a network switching box housing of a network switching system for remote automatic monitoring of a main and standby antenna tuner for a medium wave station in an exemplary embodiment of the present application is shown;

[0051] Figure 9 A schematic structural diagram of another side of a network switch box housing of a network switch system for remote automatic monitoring of a main and standby antenna tuner for a medium wave station in an exemplary embodiment of the present application is shown;

[0052] Figure 10A schematic diagram of the top structure of a network switch box housing of a network switch system for remote automatic monitoring of a main and standby antenna tuner for a medium wave station in an exemplary embodiment of the present application is shown;

[0053] Figure 11 A schematic diagram of the bottom structure of a network switching box housing of a network switching system for remote automatic monitoring of a main and standby antenna tuner for a medium wave station in an exemplary embodiment of the present application is shown;

[0054] Figure 12 A schematic diagram of the overall structure of a medium wave station remote automatic monitoring main and standby antenna tuner network switching system in an exemplary embodiment of the present application is shown.

[0055] Reference numerals:

[0056] 100, second communication interface J3; 200, feeder input port; 300, second filter assembly hole; 400, second filter switch XS2; 500, main and standby coordination network connection terminal; 600, grounding installation hole. DETAILED DESCRIPTION

[0057] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0058] In addition, the accompanying drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. Identical reference numerals in the figures denote identical or similar parts, and thus repetitive descriptions thereof will be omitted. Some of the blocks shown in the accompanying drawings are functional entities that do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0059] This example embodiment first provides a medium wave station remote automatic monitoring main and backup antenna network switching system. Figures 1 to 4As shown in, the medium wave station remote automatic monitoring main and standby antenna tuner network switching system for switching the antenna tuner network status includes a machine room control box and a network switching box; wherein, the machine room control box includes a first switching power supply V1, a main and standby switching switch S1, a first intermediate relay K1, a first standby network indicator light DS1, and a first main network indicator light DS2; the first intermediate relay K1 includes a first intermediate relay K1 normally closed node, a first intermediate relay K1 normally open node, and a first intermediate relay K1 coil; the network switching box includes a second switching power supply V2, a second intermediate relay K2, a vacuum relay K3, a second standby network indicator light DS5 and a second main network indicator light DS6; the second intermediate relay K2 includes a second intermediate relay K2 normally closed node, a second intermediate relay K2 normally open node and a second intermediate relay K2 coil.

[0060] The first switching power supply V1 is connected in series with the first circuit, the second circuit and the third circuit respectively; and the first circuit, the second circuit and the third circuit are connected in parallel; the first circuit includes the normally open node of the first intermediate relay K1, the first standby network indicator light DS1 and the normally open node of the second intermediate relay K2 connected in series; the second circuit includes the normally closed node of the first intermediate relay K1, the first main network indicator light DS2 and the normally closed node of the second intermediate relay K2 connected in series; the third circuit includes the main-standby switching switch S1 and the coil of the first intermediate relay K1 connected in series.

[0061] The second switching power supply V2 is connected in series with the fourth circuit, the fifth circuit and the sixth circuit respectively; and the fourth circuit, the fifth circuit and the sixth circuit are connected in parallel; the fourth circuit includes the normally open node of the second intermediate relay K2 and the vacuum relay K3 connected in series, as well as the normally open node of the second intermediate relay K2 and the second standby network indicator light DS5 connected in series; and the vacuum relay K3 is connected in parallel with the second standby network indicator light DS5; the fifth circuit includes the normally closed node of the second intermediate relay K2 and the second main network indicator light DS6 connected in series; the sixth circuit includes the normally open node of the first intermediate relay K1 and the coil of the second intermediate relay K2 connected in series.

[0062] Among them, the main-backup switching switch S1 can realize switching between the main antenna tuning network and the backup antenna tuning network, and the switching status of the main and backup antenna tuning networks can be displayed in real time through the first backup network indicator DS1, the first main network indicator DS2, the second backup network indicator DS5 and the second main network indicator DS6.

[0063] Further, such as Figure 2As shown, the positive pole of the first switching power supply V1 is connected to the positive pole of the first intermediate relay K1 coil through the main-standby switching switch S1, and the negative pole of the first intermediate relay K1 coil is connected to the negative pole of the first switching power supply V1; the positive pole of the first switching power supply V1 is connected to the positive pole of the first main network indicator light DS2 through the normally closed node of the first intermediate relay K1, and the negative pole of the first main network indicator light DS2 is connected to the negative pole of the first switching power supply V1 through the normally closed node of the second intermediate relay K2; the positive pole of the first switching power supply V1 is connected to the positive pole of the first standby network indicator light DS1 through the normally open node of the first intermediate relay K1, and the negative pole of the first standby network indicator light DS1 is connected to the negative pole of the first switching power supply V1 through the normally open node of the second intermediate relay K2; wherein, the main-standby switching switch S1, the normally closed node of the first intermediate relay K1 and the normally open node of the first intermediate relay K1 are connected in parallel.

[0064] It should be noted that the first switching power supply V1 is a DC switching power supply, K1-1 of the first intermediate relay K1 is connected to the positive pole of the main antenna tuner network indicator light DS2, K1-6 is connected to the positive pole of the backup antenna tuner network indicator light DS1, and the K1-14 pin of the first intermediate relay K1 coil is connected to the rear end of the main-slave switching switch S1.

[0065] Further, such as Figure 3 As shown, the positive electrode of the second switching power supply V2 is connected to the positive electrode of the coil of the second intermediate relay K2 through the normally open node of the first intermediate relay K1, and the negative electrode of the coil of the second intermediate relay K2 is connected to the negative electrode of the second switching power supply V2;

[0066] The positive electrode of the second switching power supply V2 is connected to the positive electrode of the second main network indicator light DS6 through the normally closed node of the second intermediate relay K2, and the negative electrode of the second main network indicator light DS6 is connected to the negative electrode of the second switching power supply V2;

[0067] The positive electrode of the second switching power supply V2 is connected to the positive electrode of the second standby network indicator light DS5 and the positive electrode of the vacuum relay K3 through the normally open node of the second intermediate relay K2; the negative electrode of the second standby network indicator light DS5 and the negative electrode of the vacuum relay K3 are connected to the negative electrode of the second switching power supply V2;

[0068] The second standby network indicator light DS5 and the vacuum relay K3 are connected in parallel.

[0069] It should be noted that the second switching power supply V2 is a DC switching power supply, K2-6 is connected to the positive end of the backup antenna adjustment network indicator DS5 and the positive end of the vacuum relay K3 coil, and K2-1 is connected to the positive end of the main antenna adjustment network indicator DS6.

[0070] In one embodiment, the machine room control box further includes a first filter LB1;

[0071] The positive electrode of the first switching power supply V1 is connected to the active / standby switch S1, the normally closed node of the first intermediate relay K1, and the normally open node of the first intermediate relay K1 through the positive electrode of the first filter LB1;

[0072] The cathode of the first main network indicator light DS2, the cathode of the first standby network indicator light DS1 and the cathode of the coil of the first intermediate relay K1 are connected, and are connected to the cathode of the first switching power supply V1 through the cathode of the first filter LB1.

[0073] It should be noted that if Figure 2 The first switching power supply V1 shown is a DC switching power supply, the output positive pole +24V is connected to the positive input pole of the first filter LB1, the output negative pole V- of the first switching power supply V1 is connected to the negative input pole of the first filter LB1, the output positive pole of the first filter LB1 is connected to the front end of the main-standby switch S1, and then connected in parallel to K1-9 and K1-10 of the first intermediate relay, and the K1-13 pin of the first intermediate relay is connected to the negative output pole of the filter LB1.

[0074] In one embodiment, the computer room control box further includes a first filter switch XS1; the output live wire L1 of the first filter switch XS1 is connected to the live wire terminal L of the first switching power supply V1, and the output neutral wire N1 of the first filter switch XS1 is connected to the neutral wire terminal N of the first switching power supply V1.

[0075] It should be noted that the first switching power supply V1 is a DC power supply, the first filtering switch XS1 uses a three-core power cord with a ground wire, has a 220VAC power filter inside, the output L1 is connected to the first switching power supply V1 input L, the XS1 output N1 is connected to the first switching power supply V1 input N, and the XS1 shell is connected to the first switching power supply V1 ground.

[0076] In one embodiment, the network switch box further includes a second filter LB2;

[0077] The positive pole of the second switching power supply V2 is connected to the positive pole of the second intermediate relay K2 coil through the positive pole of the second filter LB2; the negative pole of the second intermediate relay K2 coil is connected to the negative pole of the second switching power supply V2 through the negative pole of the second filter LB2.

[0078] It should be noted that the K2-14 node of the second intermediate relay K2 is connected to the positive output of the second filter LB2. The K2-13 node of the second intermediate relay K2, the negative terminal of the vacuum relay K3 coil, the negative terminal of the backup antenna tuner network indicator DS5, and the negative terminal of the main antenna tuner network indicator DS6 are connected in parallel and connected to the negative output of the second filter LB2. The ground wire of the second filter LB2 is grounded.

[0079] In one embodiment, the network switching box further includes a second filter switch XS2; the output live wire L1 of the second filter switch XS2 is connected to the live wire terminal L of the second switching power supply V2, and the output neutral wire N1 of the second filter switch XS2 is connected to the neutral wire terminal N of the second switching power supply V2.

[0080] It should be noted that the second filter switch XS2 uses a three-core power cord with a ground wire, the 220VAC power filter output L1 is connected to the second switching power supply V2 input L, the output N1 is connected to the second switching power supply V2 input N, and the XS2 shell is connected to the second switching power supply V2 ground.

[0081] In one embodiment, the computer room control box further includes a first communication interface J1, and the network switch box further includes a second communication interface J3, and the first communication interface J1 is connected to the second communication interface J3;

[0082] The cathode of the first main network indicator light DS2 is connected to one end of the normally closed node of the second intermediate relay K2 through the first communication interface J1 and the second communication interface J3;

[0083] The cathode of the first backup network indicator DS1 is connected to one end of the normally open node of the second intermediate relay K2 through the first communication interface J1 and the second communication interface J3;

[0084] The other end of the normally closed node of the second intermediate relay K2 is connected to the negative electrode of the first switching power supply V1 through the first communication interface J1 and the second communication interface J3;

[0085] The other end of the normally open node of the second intermediate relay K2 is connected to the negative electrode of the first switching power supply V1 through the first communication interface J1 and the second communication interface J3.

[0086] It should be noted that the computer room control box also includes a first terminal block XT1, the negative end of the main antenna tuner network indicator light DS2 is connected to the terminal block XT1-2 and the communication interface J1-2, and is connected to the K2-11 node of the second intermediate relay K2 of the network switch box through an aviation plug via a shielded cable, and then returns to the computer room control box from the K2-3 node via a shielded cable, connects to the communication interface J1-5, the terminal block XT1-5, and finally connects to the negative output of the filter LB1, and the LB1 ground wire is grounded. The negative end of the first backup network indicator light DS1 is connected to the terminal block XT1-1, the communication interface J1-1, and is connected to the K2-12 node of the second intermediate relay K2 of the network switch box through an aviation plug via a shielded cable, and then returns to the computer room control box from the K2-8 node via a shielded cable, connects to the communication interface J1-4, the terminal block XT1-4, and finally connects to the negative output of the filter LB1.

[0087] Furthermore, the positive electrode of the second switching power supply V2 is connected to one end of the normally open node of the first intermediate relay K1 through the first communication interface J1 and the second communication interface J3;

[0088] The other end of the normally-open node of the first intermediate relay K1 is connected to the positive electrode of the coil of the second intermediate relay K2 through the first communication interface J1 and the second communication interface J3.

[0089] It should be noted that the computer room control box also includes a second terminal block XT2, whose positive +24V output connects to K2-9 and K2-10, and in parallel to terminal block XT3-3. XT3-3 connects to the second communication interface J3-3, which is connected via a shielded cable connected via an aviation plug to the first intermediate relay K1-11 of the computer room control box. From K1-7, the shielded cable returns to the network switch box, connecting to the second communication interface J3-6 and terminal block XT3-6, ultimately connecting to the positive input of filter LB2. The negative input of filter LB2 is connected to the negative output of DC switching power supply V2. The second communication interface J3-7 is connected to the shield layer.

[0090] In one embodiment, Figure 3 and Figure 12 As shown, the vacuum relay K3 is connected to the main antenna adjustment network and the backup antenna adjustment network.

[0091] It should be noted that, optionally, the NC1 and NC2 normally closed ends of the vacuum relay K3 are connected in parallel with copper foil and connected to the main network screw rod; the ON1 and ON2 normally open ends are connected in parallel with copper foil and connected to the standby network screw rod; the COM1 and COM2 common points are connected in parallel with copper foil and connected to the internal feeder interface of the network switching box.

[0092] In one embodiment, Figure 5-Figure 6As shown, the first backup network indicator DS1, the first main network indicator DS2 and the main-backup switch S1 are all located on the front of the control box in the machine room. By pressing the main-backup switch button, the main and backup antenna networks are switched. The first backup network indicator DS1 and the first main network indicator DS2 display the current status of the main and backup antenna networks. On the back is the first filter switch XS1 with its own filter and the first communication interface J1 with a 7-core aviation plug. Figure 7-11 As shown, the front of the network switching box has a second backup network indicator light DS5 and a second main network indicator light DS6; on the right side are the second communication interface J3100 with a 7-core aviation plug and the feeder input port 200; on the left side are the filter assembly hole 300 and the second filter switch XS2400; the top has a main and backup distribution network connection terminal 500, which is connected to the main distribution network and the backup distribution network respectively through two copper screw rods insulated and fixed with polytetrafluoroethylene sheets; the bottom is unpainted and has a grounding mounting hole 600, which is provided with a φ6.5mm mounting hole, which is tightly connected to the grounding copper sheet of the network mounting frame through four M6 hexagonal copper bolts, and is used as the grounding connection of the entire switching system.

[0093] When using the medium wave station remote automatic monitoring main and standby antenna tuning network switching system provided in the embodiment of the present application, the machine room control box and the network switching box are installed in place, one end of the 6-core shielded cable is connected to the first communication interface J1 of the machine room control box, and the other end is connected to the second communication interface J3 of the network switching box. The wire connection colors and contact positions of the two interfaces correspond one to one, the shielding layer is connected to the J3-7 terminal grounded, and the power switch is turned on.

[0094] The first intermediate relay K1-9 and K1-1 nodes of the computer room control box are the normally closed ends of the K1 relay, the K1-10 and K1-6 nodes are the normally open ends of the K1 relay, and the K1-11 and K1-7 nodes are the normally open ends of the K1 relay.

[0095] The second relay K2-9 and K2-1 nodes of the network switching box are the normally closed ends of the K2 relay, the K2-10 and K2-6 nodes are the normally open ends of the K2 relay, the K2-11 and K2-3 nodes are the normally closed ends of the K2 relay, and the K2-12 and K2-8 nodes are the normally open ends of the K2 relay.

[0096] When the system is running and the primary network needs to be switched, the primary / standby switch S1 is set to the master antenna network position. This disconnects the +24V power to the coil of the first intermediate relay K1-14, causing the K1 coil to not engage and the K1-11 and K1-7 nodes to open. The +24V power to the coil of the second intermediate relay K2-14 is also disconnected by the K1-11 and K1-7 nodes, causing the K2 coil to not engage. At this point, the K2-10 and K2-6 nodes are open, disconnecting the power to the coil of the vacuum relay K3 and the power to the second backup network indicator DS5. A feeder is then connected from the COM terminal of the K3 vacuum relay to the NC terminal of the main network. The K2-9 and K2-1 nodes are short-circuited, connecting the power to the main network indicator DS6, causing the second main network indicator DS6 to illuminate.

[0097] Switch S1 to the master / slave mode, short-circuiting nodes K1-9 and K1-1 and connecting the positive power supply to the first master network indicator, DS2. When the network switch box is operating normally, short-circuiting nodes K2-11 and K2-3 connect the negative power supply to the master network indicator, DS2. Opening nodes K1-10 and K1-6 of the first intermediate relay K1 disconnects the positive power supply to the first backup network indicator, DS1. Opening nodes K2-12 and K2-8 of the second intermediate relay K2 disconnects the negative power supply to the backup network indicator, DS1. The first master network indicator, DS2, illuminates, and the transmitter is switched to the master network.

[0098] When the system is running and the backup antenna network needs to be switched, the main / backup selector switch S1 is set to the backup antenna network position. This connects the +24V power to the K1-14 coil of the first intermediate relay K1, causing the K1 coil to energize and short-circuiting the K1-11 and K1-7 nodes. The +24V power to the K2-14 coil of the second intermediate relay K2 becomes energized via a short-circuit between the K1-11 and K1-7 nodes, closing the K2 coil. At this point, the K2-10 and K2-6 nodes are short-circuited, connecting the power to the vacuum relay K3 coil and the power to the second backup network indicator DS5. A feeder line connects the COM terminal of the K3 vacuum relay to the ON terminal of the backup network. The K2-9 and K2-1 nodes are disconnected, disconnecting the power to the main network indicator DS6 and illuminating the second backup network indicator DS5.

[0099] The main-standby switch S1 is turned to the standby network position, the K1-9 and K1-1 nodes are disconnected, and the positive power supply of the first main network indicator DS2 is cut off. When the network switch box switches normally, the K2-11 and K2-3 nodes are disconnected, and the negative power supply of the first main network indicator DS2 is cut off. The K1-10 and K1-6 nodes of the first intermediate relay K1 are short-circuited, and the positive power supply of the first standby network indicator DS1 is connected; the K2-12 and K2-8 nodes of the second intermediate relay K2 are short-circuited, and the negative power supply of the first standby network indicator DS1 is connected. At this time, the control box in the computer room ( Figure 2 ) The backup network indicator DS1 lights up, and the switching transmitter is connected to the backup network.

[0100] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0101] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0102] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0103] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0104] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0105] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the inventions claimed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art that are not claimed herein. The description and examples are to be considered merely as exemplary, and the true scope and spirit of the present application are indicated by the appended claims.

Claims

1. A remote automatic monitoring system for the main and backup antenna tuner network switching of a medium wave station, characterized in that: include: The computer room control box includes a first switching power supply, a main / standby switching switch, a first intermediate relay, a first standby network indicator light, and a first main network indicator light; the first intermediate relay includes a first intermediate relay normally closed node, a first intermediate relay normally open node, and a first intermediate relay coil; A network switching box includes a second switching power supply, a second intermediate relay, a vacuum relay, a second backup network indicator light, and a second main network indicator light; the second intermediate relay includes a second intermediate relay normally closed node, a second intermediate relay normally open node, and a second intermediate relay coil; The first switching power supply is connected in series with the first circuit, the second circuit and the third circuit respectively; and the first circuit, the second circuit and the third circuit are connected in parallel; The first circuit includes the first intermediate relay normally open node, the first backup network indicator light and the second intermediate relay normally open node connected in series; The second circuit includes the first intermediate relay normally closed node, the first main network indicator light and the second intermediate relay normally closed node connected in series; The third circuit includes the main and standby switching switches and the first intermediate relay coil connected in series; The second switching power supply is connected in series with the fourth circuit, the fifth circuit and the sixth circuit respectively; and the fourth circuit, the fifth circuit and the sixth circuit are connected in parallel; The fourth circuit includes the normally open node of the second intermediate relay and the vacuum relay connected in series, and the normally open node of the second intermediate relay and the second standby network indicator light connected in series; and the vacuum relay and the second standby network indicator light are connected in parallel; The fifth circuit includes the second intermediate relay normally closed node and the second main network indicator light connected in series; The sixth circuit includes the first intermediate relay normally-open node and the second intermediate relay coil connected in series.

2. The medium wave station remote automatic monitoring main and backup antenna tuner network switching system according to claim 1 is characterized in that: The positive electrode of the first switching power supply is connected to the positive electrode of the first intermediate relay coil through the main / standby switching switch, and the negative electrode of the first intermediate relay coil is connected to the negative electrode of the first switching power supply; The positive electrode of the first switching power supply is connected to the positive electrode of the first main network indicator light through the normally closed node of the first intermediate relay, and the negative electrode of the first main network indicator light is connected to the negative electrode of the first switching power supply through the normally closed node of the second intermediate relay; The positive electrode of the first switching power supply is connected to the positive electrode of the first standby network indicator light through the normally-open node of the first intermediate relay, and the negative electrode of the first standby network indicator light is connected to the negative electrode of the first switching power supply through the normally-open node of the second intermediate relay; The master-slave switch, the first intermediate relay normally closed node and the first intermediate relay normally open node are connected in parallel.

3. The medium wave station remote automatic monitoring main and standby antenna tuner network switching system according to claim 1 is characterized in that: The positive electrode of the second switching power supply is connected to the positive electrode of the second intermediate relay coil through the normally-open node of the first intermediate relay, and the negative electrode of the second intermediate relay coil is connected to the negative electrode of the second switching power supply; The positive electrode of the second switching power supply is connected to the positive electrode of the second main network indicator light through the normally closed node of the second intermediate relay, and the negative electrode of the second main network indicator light is connected to the negative electrode of the second switching power supply; The positive electrode of the second switching power supply is connected to the positive electrode of the second standby network indicator light and the positive electrode of the vacuum relay through the normally open node of the second intermediate relay; the negative electrode of the second standby network indicator light and the negative electrode of the vacuum relay are connected to the negative electrode of the second switching power supply; Wherein, the second backup network indicator light and the vacuum relay are connected in parallel.

4. The medium wave station remote automatic monitoring main and standby antenna tuner network switching system according to claim 2 is characterized in that: The machine room control box further includes a first filter; The positive electrode of the first switching power supply is connected to the active / standby switch, the normally closed node of the first intermediate relay, and the normally open node of the first intermediate relay through the positive electrode of the first filter; The cathode of the first main network indicator light, the cathode of the first standby network indicator light and the cathode of the first intermediate relay coil are connected, and are connected to the cathode of the first switching power supply through the cathode of the first filter.

5. The medium wave station remote automatic monitoring main and standby antenna tuner network switching system according to claim 2 is characterized in that: The computer room control box further includes a first filter switch; the output live wire of the first filter switch is connected to the live wire terminal of the first switching power supply, and the output neutral wire of the first filter switch is connected to the neutral wire terminal of the first switching power supply.

6. The medium wave station remote automatic monitoring main and standby antenna tuner network switching system according to claim 3 is characterized in that: The network switching box further includes a second filter; The positive pole of the second switching power supply is connected to the positive pole of the second intermediate relay coil through the positive pole of the second filter; the negative pole of the second intermediate relay coil is connected to the negative pole of the second switching power supply through the negative pole of the second filter.

7. The medium wave station remote automatic monitoring main and backup antenna tuner network switching system according to claim 3 is characterized in that: The network switching box further includes a second filter switch; the output live wire of the second filter switch is connected to the live wire terminal of the second switching power supply, and the output neutral wire of the second filter switch is connected to the neutral wire terminal of the second switching power supply.

8. The medium wave station remote automatic monitoring main and standby antenna tuner network switching system according to claim 1 is characterized in that: The computer room control box further includes a first communication interface, and the network switch box further includes a second communication interface, wherein the first communication interface is connected to the second communication interface; The negative electrode of the first main network indicator light is connected to one end of the normally closed node of the second intermediate relay through the connected first communication interface and the second communication interface; The cathode of the first backup network indicator light is connected to one end of the normally open node of the second intermediate relay through the connected first communication interface and the second communication interface; The other end of the normally closed node of the second intermediate relay is connected to the negative electrode of the first switching power supply through the first communication interface and the second communication interface; The other end of the normally-open node of the second intermediate relay is connected to the negative electrode of the first switching power supply through the first communication interface and the second communication interface.

9. The medium wave station remote automatic monitoring main and standby antenna tuner network switching system according to claim 8, characterized in that: The positive electrode of the second switching power supply is connected to one end of the normally open node of the first intermediate relay through the connected first communication interface and the second communication interface; The other end of the normally-open node of the first intermediate relay is connected to the positive electrode of the second intermediate relay coil through the first communication interface and the second communication interface.

10. The medium wave station remote automatic monitoring main and standby antenna tuner network switching system according to claim 3 is characterized in that: The vacuum relay is connected to the main antenna adjustment network and the backup antenna adjustment network.

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