Medium wave station antenna tuning network deployment room control system

Abstract

The utility model relates to a medium wave station antenna tuning network distribution room control system comprising a sensor detection device which comprises a travel switch and is used for detecting whether an access door of a distribution room is opened or not; the logic control device comprises a main power supply air switch, a function execution power supply air switch, a wall socket power supply air switch and an alternating current contactor; the function execution device comprises a lighting switch, a ventilation switch, an alarm switch, a lighting device, a ventilation device and an alarm device; and the function execution device is connected with the function execution power supply air switch. Whether the access door is opened or not can be known through the sensor detection device, and after the access door is opened, the logic control device receives a short circuit signal sent by the travel switch, controls the function execution device to work and gives an alarm, so that the safety of personnel is ensured, and illumination, ventilation and the like are provided for maintenance. The method has the characteristics of short preparation time of maintenance work, high maintenance efficiency and high safety.

Description

Technical Field

[0001] This utility model relates to the field of antenna tuning and control technology, and in particular to a control system for a medium-wave station antenna tuning network tuning room. Background Technology

[0002] The control system for the antenna network dispatch room of the medium-wave station is required to quickly and reliably provide maintenance personnel with the necessary space and power supply for maintenance tools, as well as sufficient lighting, in the event of a network failure. Furthermore, to ensure the safety of maintenance personnel during network fault repairs, the transmitter control room must not activate the transmitter's high voltage for broadcasting during the repair process.

[0003] Currently, the antenna dispatch network used by the medium-wave station is installed in the antenna dispatch room below the antenna. The control system in the dispatch room only has sockets. The power supply to the existing system is transmitted from the transmitter control room to the sockets in the dispatch room via power lines, and it is always energized without any on / off switches. The sockets are extremely prone to leakage accidents due to prolonged energization. During maintenance of the dispatch room, the lighting system is used by maintenance personnel carrying portable lamps connected to the sockets. Every time network maintenance is carried out, lighting tools must be carried and the lighting must be manually turned on, which is time-consuming and laborious. Moreover, the existing system cannot provide feedback on maintenance personnel entering the dispatch room, and there is no alarm device. This makes it extremely easy for the transmitter control room to start the high-voltage broadcasting of the transmitter without knowing that maintenance personnel or other personnel have entered the dispatch room during maintenance, resulting in personal injury accidents caused by the high voltage output of the transmitter. This affects the personal safety of employees, the normal broadcasting operation and management of the transmitter station.

[0004] Therefore, it is necessary to improve one or more of the problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that this section is intended to provide background or context for the technical solutions of this utility model as set forth in the claims. The description herein does not constitute an admission that it is prior art simply because it is included in this section. Utility Model Content

[0006] The purpose of this utility model is to provide a control system for the mid-wave station antenna tuning network control room, thereby overcoming, to at least to some extent, one or more problems caused by the limitations and defects of related technologies.

[0007] This utility model provides a control system for a medium-wave station antenna tuning network control room, comprising:

[0008] A sensor detection device, comprising a limit switch, wherein the limit switch is used to detect whether the maintenance door of the mixing room is opened;

[0009] A logic control device includes: a main power circuit breaker, a function execution power circuit breaker, a wall socket power circuit breaker, and an AC contactor; the function execution power circuit breaker and the wall socket power circuit breaker are respectively connected to the main power circuit breaker; the main power circuit breaker, the function execution power circuit breaker, and the wall socket power circuit breaker are respectively connected to the AC contactor; the AC contactor is connected to the limit switch; and the wall socket power circuit breaker is connected to the wall socket.

[0010] The function execution device includes: a lighting switch, a ventilation switch, an alarm switch, a lighting device, a ventilation device, and an alarm device. The lighting switch is connected to the lighting device, the ventilation switch is connected to the ventilation device, and the alarm switch is connected to the alarm device. The alarm device is located near the detection door of the mixing room. The function execution device is connected to the function execution power air switch.

[0011] In this invention, the AC contactor is installed inside the power supply box of the mixing room.

[0012] In this invention, the maximum control power of the limit switch is greater than the power of the AC contactor.

[0013] In this invention, the lighting switch, ventilation switch, and alarm switch are all single-pole single-control switches.

[0014] In this invention, the main power supply of the control system is located in the launch pad control room, and the main power supply of the control system is transmitted to the main power air switch in the control room through a shielded cable.

[0015] In this invention, the live wire of the main power supply of the control system is connected to pin 1 of the main power circuit breaker, the neutral wire of the main power supply of the control system is connected to pin 3 of the main power circuit breaker, and pin 2 of the main power circuit breaker is connected to pin 1 of the function execution power circuit breaker.

[0016] In this invention, pin 2 of the main power circuit breaker is connected in parallel with pin 1 of the wall socket power circuit breaker, and pin 4 of the main power circuit breaker is connected to pin 3 of the function execution power circuit breaker, and is also connected in parallel with pin 3 of the wall socket power circuit breaker.

[0017] In this utility model, pin 2 of the functional power air switch is connected to pin 1 of the normally open contact of the limit switch, and is connected in parallel with the AC contactor.

[0018] In this invention, pin 2 of the limit switch is connected to coil node A1 of the AC contactor, and coil node A2 of the AC contactor is connected to pin 4 of the function execution power circuit breaker.

[0019] The technical solution provided by this utility model can include the following beneficial effects:

[0020] The medium-wave station antenna control network dispatching room control system of this utility model can detect whether the maintenance door is open through a sensor detection device. After the maintenance door is opened, the logic control device receives a short-circuit signal sent by the limit switch, controls the function execution device to work, and issues an alarm, which can ensure personnel safety and provide lighting and ventilation for maintenance. This control system has the characteristics of short preparation time for maintenance work, reduced workload of maintenance personnel, high maintenance efficiency, and strong safety. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention. It is obvious that the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0022] Figure 1 This diagram illustrates the structure of the control system in the medium-wave station antenna tuning network dispatching room in an exemplary embodiment of this invention.

[0023] Figure 2 This diagram illustrates the circuit connections of the control system in the medium-wave station antenna tuning network control room in an exemplary embodiment of this invention.

[0024] Figure label:

[0025] 100. Sensor detection device; 200. Logic control device; 300. Function execution device. Detailed Implementation

[0026] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary 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.

[0027] Furthermore, the accompanying drawings are merely illustrative of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0028] This example implementation provides a control system for a medium-wave station antenna tuning network dispatching room. Please refer to [reference needed]. Figure 1 and Figure 2 The system includes: a sensor detection device 100, a logic control device 200, and a function execution device 300.

[0029] Specifically, the sensor detection device 100 includes a limit switch SQ1, which is used to detect whether the maintenance door of the mixing room is opened. The limit switch can be installed on the right side of the maintenance door of the mixing room, with its roller rotating arm adjusted to be close to the back of the maintenance door, and its normally open detection terminal connected to the logic control device 200.

[0030] The logic control device 200 includes: a main power circuit breaker QF1, a function execution power circuit breaker QF2, a wall socket power circuit breaker QF3, and an AC contactor KM1. The function execution power circuit breaker QF2 and the wall socket power circuit breaker QF3 are respectively connected to the main power circuit breaker QF1. The main power circuit breaker QF1, the function execution power circuit breaker QF2, and the wall socket power circuit breaker QF3 are respectively connected to the AC contactor KM1; the AC contactor KM1 is connected to the limit switch SQ1; and the wall socket power circuit breaker QF3 is connected to a wall socket. The number of wall sockets is set to three.

[0031] The function execution device 300 includes: a lighting switch, a ventilation switch, an alarm switch, a lighting device, a ventilation device, and an alarm device. The lighting switch is connected to the lighting device, the ventilation switch is connected to the ventilation device, and the alarm switch is connected to the alarm device. The alarm device is located near the detection door of the mixing room; the function execution device 300 is connected to the function execution power air switch QF2.

[0032] In this embodiment, when the maintenance door of the network dispatching room is closed, the limit switch of the sensor detection device 100 detects that the maintenance door is not open. The sensor detection device 100 outputs a circuit breaker signal to the logic control device 200. At this time, the logic control device 200 disconnects the air switch for the function execution power supply in the dispatching room, thereby controlling the lighting, ventilation, and alarm devices to be in the off state. Correspondingly, the transmitter's broadcasting operation is in normal broadcasting mode. When the maintenance door is opened, the limit switch detects that the maintenance door is open, outputs a short-circuit signal, and sends the short-circuit signal to the logic control device 200. The logic control device 200 turns on all its internal switches, thereby controlling the lighting, ventilation, and alarm devices to be in the on state. At the same time, the alarm device sounds an alarm to notify the transmitter control room dispatching room that there are maintenance personnel. The control room stops broadcasting, and the maintenance personnel can enter the dispatching room to perform network maintenance work after the broadcasting stops.

[0033] It should be noted that the transmitter outputs high voltage during broadcasting operations. If maintenance personnel enter the control room, they could be injured by the high voltage output from the transmitter, resulting in personal injury. Therefore, broadcasting operations must be stopped before maintenance personnel can enter the control room.

[0034] The control system of this invention can detect whether the maintenance door is open through the sensor detection device 100. After the maintenance door is opened, the logic control device 200 receives a short-circuit signal sent by the limit switch, and the logic control device 200 controls the function execution device 300 to work and issues an alarm, which can ensure personnel safety and provide lighting and ventilation for maintenance. This control system has the characteristics of short preparation time for maintenance work, reduced workload of maintenance personnel, high maintenance efficiency, and strong safety.

[0035] Based on the above embodiments, in some embodiments, the AC contactor is installed in the power supply box of the control room to achieve centralized control of the relevant circuits. Simultaneously, the power supply box protects the AC contactor, reducing interference from adverse external factors and ensuring its stable and reliable operation.

[0036] Optionally, in some embodiments, the main power supply for the control system is located in the launch pad control room, and the main power supply is transmitted to the main power circuit breaker in the distribution room via a shielded cable. This allows for convenient management of the power supply system in the distribution room from the control room, ensuring uninterrupted power supply and reducing safety hazards in the distribution room.

[0037] The specific structure and working principle of each component in this utility model are described below.

[0038] The limit switch in this invention can be a YBLX-ME / 8108 adjustable roller rotating arm limit switch, with a rated operating voltage of AC220V and a rated operating current of 0.8A under the rated operating voltage.

[0039] The logic control device 200 is connected to the limit switch SQ1, the wall socket, and the function execution device 300 via a shielded cable. The AC contactor KM1 is an NXC18 AC contactor with a rated operating voltage of AC220V, a rated operating current of 18A at the rated operating voltage, a coil control voltage of AC220V, and an average coil power consumption of 50-70VA during startup and ≤9.5VA during normal operation and maintenance.

[0040] The limit switch SQ1 uses a YBLX-ME / 8108 adjustable roller rotating arm, and its maximum control power is AC220V*0.8A=176VA, which fully meets the control power of the AC contactor KM1 coil.

[0041] The lighting switch S1, ventilation switch S2, and alarm switch S3 in the functional actuator 300 can all be type 86 single-pole switches with a rated current of 10A. All three switches can be installed on the right side of the access door frame, near the AC contactor.

[0042] The number of wall sockets can be set to 3. All three wall sockets have identical electrical performance and are type 86 recessed sockets, designated Z1, Z2, and Z3 respectively. The rated operating current of the wall sockets is 10A, which is sufficient for the power supply of instruments and tools during maintenance.

[0043] The DS1 lighting device can be equipped with a 60W incandescent lamp, which has a simple and reliable structure, can prevent high-frequency network interference, and can be installed directly above the network rack.

[0044] Ventilation device B1 can be equipped with an 8-inch metal-cased exhaust fan with a rated operating voltage of AC220V and a rated current of 0.6A. The exhaust vent has built-in louvers to prevent mosquitoes, rainwater, and dust from entering the mixing room and affecting the performance of the mixing network.

[0045] The LS1 alarm device can be equipped with the TGSG-01T audible and visual alarm, with a rated voltage of AC220V, a rated current of 0.15A, an alarm decibel of 120dB, and a power-on start-up mode.

[0046] In addition, the logic control device 200 can also send a message to the equipment room control room to indicate whether personnel have entered the control room (or whether the maintenance door has been opened). If personnel have entered the control room, the broadcasting operation of the transmitter will be turned off. If no personnel have entered, the broadcasting will continue normally.

[0047] Please refer to Figure 2 The circuit connection relationship of each part of the present invention will be described below.

[0048] The main power supply of the control system is transmitted from the launch pad control room to the main power circuit breaker QF1 in the distribution room via a 2-core shielded cable. The live wire of the main power supply of the control system is connected to pin 1 of QF1, and the neutral wire is connected to pin 3 of QF1.

[0049] Pin 2 of QF1 is connected to pin 1 of QF2, and simultaneously connected to pin 1 of QF3 in parallel; pin 4 of QF1 is connected to pin 3 of QF2, and simultaneously connected to pin 3 of QF3 in parallel.

[0050] Pin 2 of QF2 is connected to pin 1 of the normally open contact of limit switch SQ1, and is also connected in parallel to the L1, L2, and L3 contacts of AC contactor KM1; pin 2 of SQ1 is connected to the A1 contact of the coil of AC contactor KM1.

[0051] The A2 contact of the KM1 coil is connected to pin 4 of QF2, and the neutral wire terminals of the lighting device DS1, ventilation device B1, and alarm device LS1 are connected in parallel.

[0052] The T1 contact of KM1 is connected to the S1 inlet terminal of the lighting switch, and the S1 outlet terminal is connected to the DS1 live wire terminal; the T2 contact is connected to the S2 inlet terminal of the ventilation switch, and the S2 outlet terminal is connected to the B1 live wire terminal; the T3 contact is connected to the S3 inlet terminal of the alarm switch, and the S3 outlet terminal is connected to the LS1 live wire terminal.

[0053] The normally open feedback contact of KM1 transmits data to the transmitter control room via a two-core shielded cable, serving as a feedback signal source for whether personnel have entered the premises.

[0054] The 2nd pin of the QF3 connects to the Z1, Z2, and Z3 live wire terminals of the wall socket; the 4th pin of the QF3 connects to the Z1, Z2, and Z3 neutral wire terminals of the wall socket.

[0055] The grounding terminals of the casings of limit switch SQ1, ventilation device B1, and alarm device LS1 are connected in parallel with the grounding terminals of wall sockets Z1, Z2, and Z3, and then connected to the ground busbar in the control system. The ground busbar is connected to the outdoor protective grounding device of the antenna control unit, which conforms to national standards, via a cable.

[0056] When the limit switch SQ1 of the weather station sensor detection device 100 is in the open-circuit position during normal operation, it outputs a normal operation signal to the transmitter control room. With limit switch SQ1 open, the power supply to coil KM1 is disconnected, KM1 is not engaged, the normally open feedback contact is open, and a no-personnel-entry signal is output to the transmitter control room. At this time, the power supply to the lighting, ventilation, and alarm devices is disconnected, and the ventilation openings are closed to prevent insects, rainwater, and dust from entering the weather station.

[0057] When the limit switch SQ1 of the antenna adjustment room sensor detection device 100 is in the short-circuit position during maintenance, it outputs a personnel entry signal to the transmitter control room. When personnel open the maintenance door and enter the antenna adjustment room (antenna adjustment network dispatch room), the movement of the maintenance door will cause a position change in the roller rotating arm of the limit switch SQ1, thereby short-circuiting the normally open contact of SQ1 and connecting the power supply to the KM1 coil. The AC contactor KM1 is energized, and the normally open feedback contact is short-circuited, outputting a personnel entry signal to the transmitter control room. At this time, with the KM1 coil energized, the lighting, ventilation, and alarm devices are powered on, automatically turning on the lighting and ventilation devices, and the alarm devices will also sound a high-brightness, high-decibel cyclic alarm to provide early warning of personnel entry into the antenna adjustment room. At this time, the antenna adjustment room automatically provides working environment lighting and rapid ventilation, and outputs a personnel entry signal to the control room, preventing on-duty personnel from accidentally turning on the transmitter's broadcast function during maintenance, which could cause electric shock accidents.

[0058] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" in the above description indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0059] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0060] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0063] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

Claims

1. A control system for a medium-wave station antenna network dispatching room, characterized in that, include: A sensor detection device, comprising a limit switch, wherein the limit switch is used to detect whether the maintenance door of the mixing room is opened; A logic control device includes: a main power circuit breaker, a function execution power circuit breaker, a wall socket power circuit breaker, and an AC contactor; the function execution power circuit breaker and the wall socket power circuit breaker are respectively connected to the main power circuit breaker; the main power circuit breaker, the function execution power circuit breaker, and the wall socket power circuit breaker are respectively connected to the AC contactor; the AC contactor is connected to the limit switch; and the wall socket power circuit breaker is connected to the wall socket. The function execution device includes: a lighting switch, a ventilation switch, an alarm switch, a lighting device, a ventilation device, and an alarm device. The lighting switch is connected to the lighting device, the ventilation switch is connected to the ventilation device, and the alarm switch is connected to the alarm device. The alarm device is located near the detection door of the mixing room. The function execution device is connected to the function execution power air switch.

2. The control system for the medium-wave station antenna network dispatching room according to claim 1, characterized in that, The AC contactor is installed in the power supply box of the mixing room.

3. The control system for the medium-wave station antenna network dispatching room according to claim 1, characterized in that, The maximum control power of the limit switch is greater than the power of the AC contactor.

4. The control system for the medium-wave station antenna network dispatching room according to claim 1, characterized in that, The lighting switch, ventilation switch, and alarm switch are all single-pole single-control switches.

5. The control system for the medium-wave station antenna network dispatching room according to claim 1, characterized in that, The main power supply for the control system is located in the launch pad control room, and the main power supply for the control system is transmitted to the main power circuit breaker in the control room via a shielded cable.

6. The control system for the medium-wave station antenna tuning network dispatching room according to claim 5, characterized in that, The live wire of the main power supply of the control system is connected to pin 1 of the main power circuit breaker, the neutral wire of the main power supply of the control system is connected to pin 3 of the main power circuit breaker, and pin 2 of the main power circuit breaker is connected to pin 1 of the function execution power circuit breaker.

7. The control system for the medium-wave station antenna tuning network dispatching room according to claim 6, characterized in that, Pin 2 of the main power circuit breaker is connected in parallel with pin 1 of the wall socket power circuit breaker. Pin 4 of the main power circuit breaker is connected to pin 3 of the function execution power circuit breaker and is also connected in parallel with pin 3 of the wall socket power circuit breaker.

8. The control system for the medium-wave station antenna network dispatching room according to claim 7, characterized in that, The function execution power circuit breaker pin 2 is connected to the normally open contact pin 1 of the limit switch, and is connected in parallel with the AC contactor.

9. The control system for the medium-wave station antenna tuning network dispatching room according to claim 8, characterized in that, Pin 2 of the limit switch is connected to coil node A1 of the AC contactor, and coil node A2 of the AC contactor is connected to pin 4 of the function execution power circuit breaker.

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