CN202565257U

CN202565257U - Multichannel intelligent radio signal receiver

Info

Publication number: CN202565257U
Application number: CN201220101206XU
Authority: CN
Inventors: 黄红伟; 谢贤斌
Original assignee: GUANGXI RADIO & TELEVISION BROADCASTING TECHNOLOGY CENTER
Current assignee: GUANGXI RADIO & TELEVISION BROADCASTING TECHNOLOGY CENTER
Priority date: 2012-03-16
Filing date: 2012-03-16
Publication date: 2012-11-28
Anticipated expiration: 2022-03-16

Abstract

The utility model discloses a multichannel intelligent radio signal receiver which comprises channel control circuits, a monitoring switcher, a central processor and network interfaces, wherein each channel control circuit mainly comprises an antenna, a frequency modulation (FM) / amplitude modulation (AM) tuner, a main attenuator, a wave detection attenuator, an audio amplifying circuit, a receiving distribution output circuit and a wave detection circuit. The multichannel intelligent radio signal receiver can be provided with four channel control circuits, can achieve simultaneous reception and monitoring of four or less than four sets of radio signals, can achieve a round robin of multiple sets of audio outputs, can achieve monitoring of the existence of radio signals and fixed amplitude noises, and further can achieve remote setting of receiving frequency and remote reading of state parameters of each programme audio.

Description

A kind of multi-way intelligence broadcast signal receiver

Technical field

The utility model relates to a kind of broadcast signal receiver, especially a kind of multi-way intelligence broadcast signal receiver.

Background technology

At present to the monitoring of broadcast transmission signal with receive in the broadcast signal receiver that adopts; Do not have and to overlap the equipment that above broadcast singal receives simultaneously, monitors to two; And in to the monitoring of broadcast signal transmission, need realize the long-range receive frequency that is provided with; Audio frequency output is overlapped in repeating query more; Realize having or not of monitor signal, realizes the long-range real-time amplitude that reads every cover broadcast program audio frequency, audio frequency normally whether state, receive frequency, overlap each attenuation, audio frequency is monitored functions such as state, monitoring time table is set.And the present special equipment that does not still have the above function of realization.

The utility model content

The technical problem that the utility model will solve provides a kind of multi-way intelligence broadcast signal receiver; Can receive simultaneously, monitor many covers broadcast singal; In to the monitoring of broadcast signal transmission, realize simultaneously long-rangely being provided with that receive frequency, repeating query overlap audio frequency output more, realize the having or not of monitor signal, the fixed ampllitude noise, realizes the long-range real-time amplitude that reads every programs audio frequency, audio frequency normally whether state, receive frequency, overlap each attenuation, audio frequency is monitored functions such as state, monitoring time table is set.

The utility model solves the problems of the technologies described above with following technical scheme:

The utility model multi-way intelligence broadcast signal receiver mainly is made up of at least one channel control circuit, monitoring commutation circuit 7, central processing unit 8 and network interface 9; Said each channel control circuit distributes output circuit 5, detecting circuit 6 to form by antenna ANT, FM/AM tuner 1, master fader 2, detection attenuator 3, audio amplifier circuit 4, reception; Said antenna ANT is connected to FM/AM tuner 1; 1 output of FM/AM tuner divides two-way, and one tunnel output is connected to master fader 2, and another road output is connected to detection attenuator 3; Master fader 2 outputs are connected to audio amplifier circuit 4; Audio amplifier circuit two-way output in 4 fens, one tunnel output are connected to receive and distribute output circuit 5, and another road output is connected to monitor looks commutation circuit 7; Receive and distribute output circuit 5 outputting video signal A-OUT1 and A-OUT2; 3 outputs of detection attenuator are connected to detecting circuit 6; Detecting circuit 6 outputs are connected to central processing unit 8; Central processing unit 8 has three tunnel outputs; One tunnel output is connected to the FM/AM tuner 1 of each channel control circuit; One tunnel output is connected to monitors switch 7, and another road output is connected to network interface 9, receives the signal from the detecting circuit 6 of each channel control circuit simultaneously; Monitoring commutation circuit 7 receives the input control order of central processing units 8 and from the input signal of each channel control circuit, exports from AUDIO OUT port; Said network interface 9 is connected with external equipment.

The utility model multi-way intelligence broadcast signal receiver; The channel control circuit that distributes output circuit 5, detecting circuit 6 to form by antenna ANT, FM/AM tuner 1, master fader 2, detection attenuator 3, audio amplifier circuit 4, reception has 4, connects with parallel way.

The utility model can be provided with 4 channel control circuits, receives and monitoring when can realize 4 cover broadcast singals, and can realize the Long-distance Control to 4 passages as required.

Description of drawings

Figure one is the circuit block diagram of the utility model.

Figure two is channel control circuit figure of the utility model.

Among the figure:

ANT---antenna

1---the FM/AM tuner

2---master fader

3---the detection attenuator

4---audio amplifier circuit

5---receive and distribute output circuit

6---detecting circuit

7---monitor commutation circuit

8---central processing unit

9---network interface

Embodiment

Below in conjunction with accompanying drawing the utility model is done further to describe:

The utility model multi-way intelligence broadcast signal receiver mainly is made up of channel control circuit, monitoring commutation circuit 7, central processing unit 8 and the network interface 9 of four parallel connections, shown in figure one.

Each channel control circuit distributes output circuit 5, detecting circuit 6 to form by antenna ANT, FM/AM tuner 1, master fader 2, detection attenuator 3, audio amplifier circuit 4, reception.With the first passage is example, and its control circuit is shown in figure two.Antenna ANT is connected to FM/AM tuner 1; 1 output of FM/AM tuner divides two-way, and one tunnel output is connected to master fader 2, and another road output is connected to detection attenuator 3; Master fader 2 outputs are connected to audio amplifier circuit 4; Audio amplifier circuit two-way output in 4 fens, one tunnel output are connected to receive and distribute output circuit 5, and another road output A-CH1 signal is connected to monitors commutation circuit 7; Receive and distribute output circuit 5 output audio signal A-OUT1 and A-OUT2; 3 outputs of detection attenuator are connected to detecting circuit 6; Detecting circuit 6 outputs are connected to central processing unit 8.

Central processing unit 8 has three tunnel outputs, and one tunnel output is connected to the FM/AM tuner 1 of each channel control circuit, with the reception frequency range of control FM/AM tuner 1; One tunnel output signal arrives monitors switch 7, the output of control audio channel signal, and from AUDIO OUT port output audio channel signal; Another road output is connected to network interface 9, can realize and the external equipment communication through the control signal of network interface 9 receptions from external equipment.Central processing unit 8 receives the Video Detection signal from the detecting circuit 6 of each channel control circuit simultaneously.

Keep watch on the input control order that switch 7 receives central processing unit 8, select the output of voice-grade channel signal, and finally export from AUDIO OUT port.

Network interface 9 is connected with external equipment, realizes the communication with external equipment.

Concrete working condition is following: shown in figure two, first via radio broadcasting signal is delivered to FM/AM tuner 1 after being received by antenna ANT, and the reception frequency range of FM/AM tuner 1 is controlled by central processing unit 8.Signal is output audio signal after 1 demodulation of FM/AM tuner, after audio amplifier circuit 4 amplifies, send to receive and distributes output circuit 5, supplies external equipment to use from A-OUT1 and A-OUT2 output.Send monitoring commutation circuit 7 from the A-CH1 signal of audio amplifier circuit 4 outputs.Monitoring commutation circuit 7 is a certain roads among A-CH1～ACH4 according to the instruction decision output of central processing unit 8, delivers to the output of AUDIO OUT end at last.

Inspect wave circuit 6 again by ready samples behind one road signal censorship wave attenuation device 3 of FM/AM tuner 1 output; Size with the detection signal steady ripple noise that has that it's too late; And give central processing unit 8 with this signal, and carry out outputing to after the logical operation and keep watch on switch 7, keep watch on the output of switch 7 with control and select.

Central processing unit 8 is connected with network interface 9, and the communication of completion and peripherals system realizes the switching output and the functions such as level adjustment and frequency-selecting of broadcast singal through receiving external command.External command is delivered to central processing unit 8 through network interface 9; Through 8 pairs of each several part circuit control of central processing unit, can realize repeating query overlap more broadcast singal output, monitor signal have or not with fixed ampllitude noise, the long-range real-time amplitude that reads every programs audio frequency, audio frequency normally whether state, receive frequency, overlap each attenuation, the audio frequency monitoring is provided with functions such as state, monitoring time table.

The utility model can be provided with 4 passages; Realize receiving simultaneously, to monitor broadcast singal, repeating query below quadruplet and the quadruplet and overlap the having or not of audio frequency output, monitor signal, fixed ampllitude noise more, and can realize long-range receive frequency and the long-range state parameter that reads every programs audio frequency of being provided with.

Claims

1. a multi-way intelligence broadcast signal receiver is characterized in that, mainly is made up of at least one channel control circuit, monitoring commutation circuit (7), central processing unit (8) and network interface (9); Said each channel control circuit distributes output circuit (5), detecting circuit (6) to form by antenna ANT, FM/AM tuner (1), master fader (2), detection attenuator (3), audio amplifier circuit (4), reception; Said antenna ANT is connected to FM/AM tuner (1); FM/AM tuner (1) output divides two-way, and one tunnel output is connected to master fader (2), and another road output is connected to detection attenuator (3); Master fader (2) output is connected to audio amplifier circuit (4); Audio amplifier circuit (4) divides two-way output, and one tunnel output is connected to receive and distributes output circuit (5), and another road output is connected to monitor looks commutation circuit (7); Receive and distribute output circuit (5) outputting video signal A-OUT1 and A-OUT2; Detection attenuator (3) output is connected to detecting circuit (6); Detecting circuit (6) output is connected to central processing unit (8); Central processing unit (8) has three tunnel outputs; One tunnel output is connected to the FM/AM tuner (1) of each channel control circuit; One tunnel output is connected to monitors switch (7), and another road output is connected to network interface (9), receives the signal of the detecting circuit (6) from each channel control circuit simultaneously; Monitoring commutation circuit (7) receives the input control order of central processing unit (8) and from the input signal of each channel control circuit, exports from AUDIO OUT port; Said network interface (9) is connected with external equipment.

2. multi-way intelligence broadcast signal receiver according to claim 1; It is characterized in that; The channel control circuit that distributes output circuit (5), detecting circuit (6) to form by antenna ANT, FM/AM tuner (1), master fader (2), detection attenuator (3), audio amplifier circuit (4), reception has 4, connects with parallel way.