CN211046946U - Automatic broadcast control device for broadcast signal classification - Google Patents
Automatic broadcast control device for broadcast signal classification Download PDFInfo
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- CN211046946U CN211046946U CN201922215949.4U CN201922215949U CN211046946U CN 211046946 U CN211046946 U CN 211046946U CN 201922215949 U CN201922215949 U CN 201922215949U CN 211046946 U CN211046946 U CN 211046946U
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Abstract
The utility model discloses a hierarchical automatic broadcast controlling means of broadcast signal, including circuit breaker QF, receipts commentaries on classics programme power contactor, do oneself programme power contactor, urgent broadcast power contactor, first relay, second relay and third relay, state circuit breaker QF and have two switches QF-1, the switch QF-2 that are in same operating condition, switch QF-1 has first movable end, first stationary end, switch QF-2 has second movable end and second stationary end, receive commentaries on classics programme power contactor and have a coil KM1-1, a normally open contact KM1-2, a normally open contact KM1-3 and a normally closed contact KM1-4, do oneself programme power contactor has a coil KM2-1, a normally open contact KM2-2, a normally open contact KM2-3, A normally open contact KM2-4 and a normally closed contact KM2-5, wherein the emergency broadcast power contactor has a coil KM3-1, a normally open contact KM3-2, a normally closed contact KM3-3 and a normally closed contact KM 3-4.
Description
Technical Field
The utility model relates to a hierarchical automatic broadcast controlling means of broadcast signal.
Background
Broadcast refers to a means of information dissemination that transmits sound over radio waves or wires. Broadcasts were born in the 20 th century and the 20 th generation. The broadcasting has the advantages of wide objects, rapid spread, multiple functions and strong infectivity; moreover, because the broadcasting system is arranged in multiple points, the broadcasting wires are mostly arranged in remote areas, so that the broadcasting system is easy to be struck by lightning and the broadcasting equipment is easy to be damaged; in the prior art, a plurality of broadcasting channels are controlled by manual switching according to information content and importance, information transmission is difficult when an emergency occurs, much time is delayed from starting to broadcasting, the timeliness of information transmission is affected, and unexpected loss can be caused by untimely manual switching or delayed switching time when emergency broadcasting such as geological disasters occurs.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: the broadcast signal grading automatic playing control device has the advantages of simple and ingenious structure and low cost, and can actually control broadcast output in a grading manner.
In order to solve the technical problem, the utility model discloses a technical scheme be: the broadcast signal grading automatic playing control device comprises a breaker QF, a broadcasting receiving program power supply contactor, a self-processing program power supply contactor, an emergency broadcasting power supply contactor, a first relay, a second relay and a third relay, wherein the breaker QF is provided with two switches QF-1 and QF-2 which are in the same working state, the switch QF-1 is provided with a first movable end and a first fixed end, the switch QF-2 is provided with a second movable end and a second fixed end, the broadcasting receiving program power supply contactor is provided with a coil KM1-1, a normally open contact KM1-2, a normally open contact KM1-3 and a normally closed contact KM1-4, the self-processing program power supply contactor is provided with a coil KM2-1, a normally open contact KM2-2, a normally open contact KM2-3, a normally open contact KM2-4 and a normally closed contact KM2-5, the emergency broadcast power supply contactor is provided with a coil KM3-1, a normally open contact KM3-2, a normally closed contact KM3-3 and a normally closed contact KM3-4, the first relay is provided with a coil KM4-1, a normally open contact KM4-2 and a normally open contact KM4-3, the second relay is provided with a coil KM5-1, a normally open contact KM5-2 and a normally open contact KM5-3, and the third relay is provided with a coil KM6-1, a normally open contact KM6-2 and a normally open contact KM 6-3;
the first end of a coil KM1-1 of the receiving and rotating program power contactor is connected with a live wire L2 sequentially through a normally closed contact KM3-4 of the emergency broadcasting power contactor and a normally closed contact KM2-5 of the self-handling program power contactor, and the second end of the coil KM1-1 of the receiving and rotating program power contactor is connected with a zero wire N2, a normally open contact KM1-2 of the receiving and rotating program power contactor is connected with a first movable end of a breaker QF, a first fixed end of the breaker QF is connected with the live wire L, a second end of the normally open contact KM1-2 is connected with a loudspeaker, and is also connected with a first end of a coil KM4-1 of a first relay, a second end of the coil KM4-1 is connected with a second movable end of the breaker QF, a second fixed end of the breaker QF is connected with a zero wire N, a coil KM5-1 of a second relay, a coil 6-1 of a third relay are connected with a coil KM4-1 of the first relay in parallel, and a normally open end of the radio receiver is connected with a second movable end of the breaker KM 1;
the first end of the coil KM2-1 of the self-office program power supply contactor is connected with the first movable end of the breaker QF after passing through the normally closed contact KM3-3 of the emergency broadcast power supply contactor, the normally closed contact KM1-4 of the program power supply contactor and the manual button AQ in sequence, the second end of the coil KM2-1 is connected with the second moving end of the breaker QF, the normally open contact KM2-4 of the self-office program power contactor is connected in parallel with the manual button AQ, the normally open contact KM2-2 of the self-office program power supply contactor is connected in parallel with the normally open contact KM1-2, a first end of a normally open contact KM2-3 of the self-office program power supply contactor is connected with a first movable end of the breaker QF, a second end of the normally open contact KM2-3 of the self-office program power supply contactor is connected with audio equipment, and the audio equipment is connected with a second movable end of the breaker QF;
a first end of a coil KM3-1 of the emergency broadcast power contactor is connected with a live wire L1, a second end of the coil KM3-1 of the emergency broadcast power contactor is connected with a zero wire N1, and a normally open contact KM3-2 of the emergency broadcast power contactor is connected with the KM1-2 in parallel;
and the first ends of the normally open contacts of the first relay, the second relay and the third relay are connected with the corresponding internal terminals, and the second ends of the normally open contacts of the first relay, the second relay and the third relay are connected with the corresponding external terminals.
Furthermore, the first relay is also provided with a normally closed contact KM4-4 and a normally closed contact KM4-5, wherein the normally closed contact KM4-4 and the normally closed contact KM4-5 are connected with the corresponding external terminals at the first ends and grounded at the second ends.
Furthermore, the second relay is also provided with a normally closed contact KM5-4 and a normally closed contact KM5-5, wherein the normally closed contact KM5-4 and the normally closed contact KM5-5 are connected with the corresponding external terminals at the first ends and grounded at the second ends.
Furthermore, the third relay is also provided with a normally closed contact KM6-4 and a normally closed contact KM6-5, wherein the first ends of the normally closed contact KM6-4 and the normally closed contact KM6-5 are connected with the corresponding external terminals, and the second ends are grounded.
Further, the circuit breaker further comprises a reset normally-closed switch AT, and the coil KM2-1 is connected with the first movable end of the breaker QF sequentially through the normally-closed contact KM3-3, the normally-closed contact KM1-4, the switch button AQ and the reset normally-closed switch AT.
Furthermore, the power supply device also comprises a rotary program power indicator RD2, wherein a first end of the rotary program power indicator RD2 is connected with the live wire L2, and a second end of the rotary program power indicator RD2 is connected with the neutral wire N2.
Furthermore, the portable terminal device further comprises a portable program power indicator RD1, wherein a first end of the portable program power indicator RD1 is connected with a first movable end of the circuit breaker QF, and a second end of the portable program power indicator RD1 is connected with a second movable end of the circuit breaker QF.
Further, the emergency broadcast power indicator lamp RD3 is also included, and a first end of the emergency broadcast power RD3 is connected with the live wire L1, and a second end is connected with the neutral wire N2.
The utility model discloses automatic broadcast controlling means in broadcasting signal classification can be according to the broadcast output of signal classification control automatically. When the automatic control power supply of various signals exists, the priority level is automatically identified, and the signal broadcast with the highest priority level is broadcasted; automatically inputting corresponding signal output routes according to various signals; the work of the external circuit is automatically converted into the grounding, so that the lightning protection of the external circuit is realized.
Drawings
Fig. 1 is a schematic circuit diagram of the broadcast signal grading automatic playing control device of the present invention;
fig. 2 is a schematic circuit diagram of a first relay, a second relay and a third relay in the broadcast signal grading automatic playing control device of the present invention;
FIG. 3 is a schematic circuit diagram of the broadcast signal grading automatic playing control device of the present invention after the KM2-5, KM3-4 and KM1-1 are electrically connected;
FIG. 4 is a schematic circuit diagram of the broadcast signal grading automatic playing control device of the present invention after the KM1-4, KM3-3 and KM2-1 are electrically connected;
fig. 5 is a schematic circuit diagram of the broadcast signal classification automatic playing control device of the present invention, in which KM3-1 and RD3 are connected in parallel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1 to 5, the broadcast signal grading automatic playing control device of the present invention includes a circuit breaker QF, a program receiving and transferring power supply contactor, a program self-handling power supply contactor, an emergency broadcast power supply contactor, a first relay, a second relay and a third relay, wherein the circuit breaker QF has two switches QF-1 and QF-2 in the same working state. The switch QF-1 has a first movable end and a first immovable end, the switch QF-2 has a second movable end and a second immovable end, the receiving and rotating program power supply contactor has a coil KM1-1, a normally open contact KM1-2, a normally open contact KM1-3 and a normally closed contact KM1-4, the self-service program power supply contactor has a coil KM2-1, a normally open contact KM2-2, a normally open contact KM2-3, a normally open contact KM2-4 and a normally closed contact KM2-5, the emergency broadcast power supply contactor has a coil KM3-1, a normally open contact KM3-2, a normally closed contact KM3-3 and a normally closed contact KM3-4, the first relay has a coil KM4-1, a normally open contact KM4-2 and a normally open contact KM4-3, the second relay is provided with a coil KM5-1, a normally open contact KM5-2 and a normally open contact KM5-3, and the third relay is provided with a coil KM6-1, a normally open contact KM6-2 and a normally open contact KM 6-3. Wherein:
the first end of a coil KM1-1 of the receiving and rotating program power contactor is connected with a live wire L2 sequentially through a normally closed contact KM3-4 of the emergency broadcasting power contactor and a normally closed contact KM2-5 of the self-handling program power contactor, the second end of the coil KM1-1 of the receiving and rotating program power contactor is connected with a zero wire N2, a normally open contact KM1-2 of the receiving and rotating program power contactor is connected with a first movable end of a breaker QF, a first fixed end of the breaker QF is connected with the live wire L, a second end of the normally open contact KM1-2 is connected with a loudspeaker and is also connected with a first end of a coil KM4-1 of a first relay, a second end of the coil KM4-1 is connected with a second movable end of the breaker QF, a second fixed end of the breaker QF is connected with the zero wire N, coils KM5-1 of a second relay, 6-1 of a third relay are connected with a coil KM4-1 of the first relay in parallel, and a normally open end of the radio receiver is connected with a second movable end of the breaker KM1 and a second relay.
The first end of the coil KM2-1 of the self-office program power supply contactor is connected with the first movable end of the breaker QF after passing through the normally closed contact KM3-3 of the emergency broadcast power supply contactor, the normally closed contact KM1-4 of the program power supply contactor and the manual button AQ in sequence, the second end of the coil KM2-1 is connected with the second moving end of the breaker QF, the normally open contact KM2-4 of the self-office program power contactor is connected in parallel with the manual button AQ, the normally open contact KM2-2 of the self-office program power supply contactor is connected in parallel with the normally open contact KM1-2, the first end of a normally open contact KM2-3 of the self-office program power supply contactor is connected with the first movable end of the breaker QF, the second end of the normally open contact KM2-3 of the self-office program power supply contactor is connected with audio equipment, and the audio equipment is connected with the second movable end of the breaker QF. The audio devices include sound mixing consoles, DVDs, and the like.
The first end of a coil KM3-1 of the emergency broadcast power contactor is connected with a live wire L1, the second end of the coil KM3-1 of the emergency broadcast power contactor is connected with a zero wire N1, and a normally open contact KM3-2 of the emergency broadcast power contactor is connected with the KM1-2 in parallel.
And the first ends of the normally open contacts of the first relay, the second relay and the third relay are connected with the corresponding internal terminals, and the second ends of the normally open contacts of the first relay, the second relay and the third relay are connected with the corresponding external terminals. That is, the normally open contact KM4-2 of the first relay has a first end connected to the corresponding internal terminal 11 and a second end connected to the corresponding external terminal 13. The normally open contact KM4-3 of the first relay is connected with the corresponding internal terminal 12, and the second end is connected with the corresponding external terminal 14. The first end of the normally open contact KM5-2 of the second relay is connected with the corresponding internal terminal 21, the second end of the normally open contact KM5-3 of the second relay is connected with the corresponding external terminal 24, and the first end of the normally open contact KM5-2 of the second relay is connected with the corresponding internal terminal 22. The first end of the normally open contact KM6-2 of the third relay is connected with the corresponding internal terminal 31, the second end of the normally open contact KM6-3 of the third relay is connected with the corresponding external terminal 34, and the first end of the normally open contact KM6-2 of the third relay is connected with the corresponding internal terminal 31, and the second end of the normally open contact KM6-3 of the third relay is connected with the corresponding external terminal 32. The internal terminal refers to a terminal for connecting power amplifier equipment in the control room, and the external terminal is a terminal of each playing equipment remotely connected with the control room.
In this embodiment, the first relay further has a normally closed contact KM4-4 and a normally closed contact KM4-5, wherein the normally closed contact KM4-4 and the normally closed contact KM4-5 have first ends connected to corresponding external terminals and second ends connected to ground. Namely, the normally closed contact KM4-4 has a first end connected to the external terminal 13 and a second end grounded. The normally closed contact KM4-5 has a first end connected to the external terminal 14 and a second end connected to ground.
In this embodiment, the second relay further has a normally closed contact KM5-4 and a normally closed contact KM5-5, wherein the normally closed contact KM5-4 and the normally closed contact KM5-5 have first ends connected to corresponding external terminals and second ends grounded. Namely, the normally closed contact KM5-4 has a first end connected to the external terminal 23 and a second end grounded. The normally closed contact KM5-5 has a first end connected to the external terminal 24 and a second end connected to ground.
In this embodiment, the third relay further has a normally closed contact KM6-4 and a normally closed contact KM6-5, wherein the normally closed contact KM6-4 and the normally closed contact KM6-5 have first ends connected to the corresponding external terminals and second ends connected to the ground. That is, the normally closed contact KM6-4 has a first end connected to the corresponding external terminal 33 and a second end grounded. The normally closed contact KM6-5 has a first end connected to the corresponding external terminal 34 and a second end grounded.
In this embodiment, preferably, the broadcast signal grading automatic control device further includes a normally closed reset switch AT, and the coil KM2-1 is connected to the first moving end of the breaker QF through the normally closed contact KM3-3, the normally closed contact KM1-4, the switch button AQ, and the normally closed reset switch AT in sequence.
In this embodiment, preferably, the broadcast signal grading automatic control device further includes a relay program power indicator RD2, a first end of the relay program power indicator RD2 is connected to the live wire L2, and a second end of the relay program power indicator RD2 is connected to the neutral wire N2.
In this embodiment, preferably, the broadcast signal grading automatic control device further includes a self-office program power indicator RD1, a first end of the self-office program power indicator RD1 is connected to the first movable end of the circuit breaker QF, and a second end of the self-office program power indicator RD1 is connected to the second movable end of the circuit breaker QF.
In this embodiment, preferably, the automatic control device for broadcast signal classification further includes an emergency broadcast power indicator RD3, a first end of the emergency broadcast power RD3 is connected to the live wire L1, and a second end is connected to the neutral wire N2.
The utility model discloses hierarchical automatic control device of broadcast signal utilizes electric automatic control system, realizes the hierarchical control of broadcasting, guarantees the ageing of information transfer, and the automatic ground connection of outer unwrapping wire way when stopping broadcasting does not invade when guaranteeing that outer unwrapping wire way landed mine and broadcasts the system damage equipment. The utility model discloses hierarchical automatic control device of broadcast signal's theory of operation as follows: when the intelligent power supply works, the breaker QF main power supply is normally closed, and the power supply indicator RD1 lights up to indicate that the control system is electrified. When any one set of program is started, the first relay to the third relay are powered on and closed, the internal terminals 11, 12, 21, 22, 31 and 32 are output to the external line through the closed normally open contacts of the first relay to the third relay and then through the external terminals 13, 14, 23, 24, 33 and 34 respectively, after all programs are stopped, the first relay to the third relay are powered off, the internal terminals 11, 12, 21, 22, 31 and 32 are isolated by the normally open contacts of the first relay to the third relay, and the external terminals 13, 14, 23, 24, 33 and 34 are connected with the ground through the normally closed contacts of the first relay to the third relay, so that the broadcasting system damage equipment is not invaded when the external line is landed, and the lightning protection function of the external line side is realized. In this embodiment, KM4-KM6 is a main contactor for output and grounding, an internal terminal of the main contactor is used for connecting to a power amplifier, an external terminal of the main contactor is connected to each broadcasting line, and when the main contactor works, a normally open contact of the main contactor is closed, and a normally closed contact is opened, so that the power amplifier is communicated with each broadcasting line and is isolated from a grounding line. When not working, external circuit cuts off with the power amplifier, with the earth connection intercommunication, when having overvoltage such as thunder on the external circuit, introduces the earth through the earth connection, because the power amplifier is kept apart with external unwrapping wire way, can not influence and damage computer lab equipment such as power amplifier.
When the receiving and transferring program (KM1) and the self-handling program (KM2) are interlocked, a power supply is controlled by the external part L5 2, when L is powered on, a coil KM1-1 of a receiving and transferring program power supply contactor is switched on, a 103 line (namely a normally open contact KM1-2 is closed) is powered on, a loudspeaker is switched on, and a receiving and transferring program signal is directly externally discharged through the loudspeaker and first to third relays, when the receiving and transferring program is broadcasted, 106 and 107 are switched off (namely the normally closed contact KM1-4 is switched off) through a KM1 normally closed contact, so that the self-handling program cannot be switched on, when emergency broadcasting is carried out, a coil KM3-1 of the emergency broadcasting power supply contactor is powered on, a 109 and 110 are switched off (namely the normally closed contact KM3-4 is switched off), a coil KM1-1 of a receiving and transferring program power supply contactor is powered on, and when the emergency broadcasting is carried out, the receiving and transferring program (KM2) is broadcasted under the control of emergency broadcasting.
When the self-office program is played, L-109 (namely the normally closed contact KM2-5 is disconnected) is disconnected through the KM2 normally closed contact, the receiving and rotating program cannot be switched on, when the emergency broadcast is carried out, KM3 is powered, 107 and 108 (namely the normally closed contact KM3-3) are disconnected, the coil KM2-1 is powered off, and the emergency broadcast is controlled by the emergency broadcast power supply contactor to play the emergency broadcast.
The emergency broadcast has the highest priority, and when L1 is powered on through the telephone circuit, KM3 is directly conducted, the receiving and rotating program KM1 and the self-handling program KM2 are disconnected through the normally closed contacts, the broadcasting is interrupted, and the emergency broadcast signal is directly broadcasted through the loudspeaker, and when the emergency broadcast is broadcasted through the telephone circuit, the working state of the emergency broadcast is indicated through an RD3 indicator lamp and is referred by local control personnel.
The utility model discloses a hierarchical automatic broadcast controlling means of broadcast signal can be automatically according to the broadcast output of signal classification hierarchical control. When the automatic control power supply of various signals exists, the priority level is automatically identified, and the signal broadcast with the highest priority level is broadcasted; automatically inputting corresponding signal output routes according to various signals; the work of the external circuit is automatically converted into the grounding, so that the lightning protection of the external circuit is realized. The utility model discloses a hierarchical automatic broadcast controlling means of broadcast signal adopts several simple electronic components, utilizes the ingenious circuit of design can realize above-mentioned function promptly, and simple structure is ingenious, low cost, and later maintenance is with low costs, and it is convenient to maintain. The utility model discloses an utilize ripe low-cost electrical control element, need not program and can realize reliably for a long time the utility model discloses the control function who explains.
The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (8)
1. A broadcast signal grading automatic playing control device is characterized in that: the automatic broadcasting program power supply contactor comprises a breaker QF, a receiving and transferring program power supply contactor, a self-processing program power supply contactor, an emergency broadcasting power supply contactor, a first relay, a second relay and a third relay, wherein the breaker QF is provided with two switches QF-1 and QF-2 which are in the same working state, the switch QF-1 is provided with a first movable end and a first immovable end, the switch QF-2 is provided with a second movable end and a second immovable end, the receiving and transferring program power supply contactor is provided with a coil KM1-1, a normally open contact KM1-2, a normally open contact KM1-3 and a normally closed contact KM1-4, the self-processing program power supply contactor is provided with a coil KM2-1, a normally open contact KM2-2, a normally open contact KM2-3, a normally open contact KM2-4 and a normally closed contact KM2-5, the emergency broadcast power supply contactor is provided with a coil KM3-1, a normally open contact KM3-2, a normally closed contact KM3-3 and a normally closed contact KM3-4, the first relay is provided with a coil KM4-1, a normally open contact KM4-2 and a normally open contact KM4-3, the second relay is provided with a coil KM5-1, a normally open contact KM5-2 and a normally open contact KM5-3, and the third relay is provided with a coil KM6-1, a normally open contact KM6-2 and a normally open contact KM 6-3;
the first end of a coil KM1-1 of the receiving and rotating program power contactor is connected with a live wire L2 sequentially through a normally closed contact KM3-4 of the emergency broadcasting power contactor and a normally closed contact KM2-5 of the self-handling program power contactor, and the second end of the coil KM1-1 of the receiving and rotating program power contactor is connected with a zero wire N2, a normally open contact KM1-2 of the receiving and rotating program power contactor is connected with a first movable end of a breaker QF, a first fixed end of the breaker QF is connected with the live wire L, a second end of the normally open contact KM1-2 is connected with a loudspeaker, and is also connected with a first end of a coil KM4-1 of a first relay, a second end of the coil KM4-1 is connected with a second movable end of the breaker QF, a second fixed end of the breaker QF is connected with a zero wire N, a coil KM5-1 of a second relay, a coil 6-1 of a third relay are connected with a coil KM4-1 of the first relay in parallel, and a normally open end of the radio receiver is connected with a second movable end of the breaker KM 1;
the first end of the coil KM2-1 of the self-office program power supply contactor is connected with the first movable end of the breaker QF after passing through the normally closed contact KM3-3 of the emergency broadcast power supply contactor, the normally closed contact KM1-4 of the program power supply contactor and the manual button AQ in sequence, the second end of the coil KM2-1 is connected with the second moving end of the breaker QF, the normally open contact KM2-4 of the self-office program power contactor is connected in parallel with the manual button AQ, the normally open contact KM2-2 of the self-office program power supply contactor is connected in parallel with the normally open contact KM1-2, a first end of a normally open contact KM2-3 of the self-office program power supply contactor is connected with a first movable end of the breaker QF, a second end of the normally open contact KM2-3 of the self-office program power supply contactor is connected with audio equipment, and the audio equipment is connected with a second movable end of the breaker QF;
a first end of a coil KM3-1 of the emergency broadcast power contactor is connected with a live wire L1, a second end of the coil KM3-1 of the emergency broadcast power contactor is connected with a zero wire N1, and a normally open contact KM3-2 of the emergency broadcast power contactor is connected with the KM1-2 in parallel;
and the first ends of the normally open contacts of the first relay, the second relay and the third relay are connected with the corresponding internal terminals, and the second ends of the normally open contacts of the first relay, the second relay and the third relay are connected with the corresponding external terminals.
2. The broadcast signal rating auto-play control device of claim 1, wherein: the first relay is also provided with a normally closed contact KM4-4 and a normally closed contact KM4-5, wherein the normally closed contact KM4-4 and the normally closed contact KM4-5 are connected with the corresponding external terminals at the first ends and are grounded at the second ends.
3. The broadcast signal rating auto-play control device of claim 2, wherein: the second relay is also provided with a normally closed contact KM5-4 and a normally closed contact KM5-5, wherein the normally closed contact KM5-4 and the normally closed contact KM5-5 are connected with the corresponding external terminals at the first ends and are grounded at the second ends.
4. The broadcast signal rating auto-play control device of claim 3, wherein: the third relay is also provided with a normally closed contact KM6-4 and a normally closed contact KM6-5, wherein the first ends of the normally closed contact KM6-4 and the normally closed contact KM6-5 are connected with corresponding external terminals, and the second ends are grounded.
5. The broadcast signal rating auto-play control device of claim 1, wherein: the circuit breaker further comprises a reset normally closed switch AT, and the coil KM2-1 is connected with the first movable end of the breaker QF sequentially through the normally closed contact KM3-3, the normally closed contact KM1-4, the switch button AQ and the reset normally closed switch AT.
6. The apparatus for controlling hierarchical automatic broadcasting of broadcasting signals according to any of claims 1 to 5, further comprising a stop program power indicator RD2, wherein a first end of the stop program power indicator RD2 is connected to the live wire L2, and a second end thereof is connected to the neutral wire N2.
7. The broadcast signal hierarchical automatic playback control apparatus of any one of claims 1 to 5, wherein: the self-office program power indicator RD1 is further included, a first end of the self-office program power indicator RD1 is connected with the first movable end of the circuit breaker QF, and a second end of the self-office program power indicator RD1 is connected with the second movable end of the circuit breaker QF.
8. The apparatus for hierarchical automatic playback of broadcast signals according to any of claims 1 to 5, further comprising an emergency broadcast power indicator RD3, wherein a first end of the emergency broadcast power RD3 is connected to the fire wire L1, and a second end is connected to the neutral wire N2.
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| CN201922215949.4U CN211046946U (en) | 2019-12-11 | 2019-12-11 | Automatic broadcast control device for broadcast signal classification |
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| CN201922215949.4U CN211046946U (en) | 2019-12-11 | 2019-12-11 | Automatic broadcast control device for broadcast signal classification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838883A (en) * | 2019-12-11 | 2020-02-25 | 重庆市同讯电力实业有限公司 | Automatic broadcast control device for broadcast signal classification |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838883A (en) * | 2019-12-11 | 2020-02-25 | 重庆市同讯电力实业有限公司 | Automatic broadcast control device for broadcast signal classification |
| CN110838883B (en) * | 2019-12-11 | 2024-04-09 | 重庆市同讯电力实业有限公司 | Automatic broadcast controller for broadcast signal grading |
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