CN201142680Y - Detecting control device of digital station field broadcast machine - Google Patents
Detecting control device of digital station field broadcast machine Download PDFInfo
- Publication number
- CN201142680Y CN201142680Y CNU2007200990859U CN200720099085U CN201142680Y CN 201142680 Y CN201142680 Y CN 201142680Y CN U2007200990859 U CNU2007200990859 U CN U2007200990859U CN 200720099085 U CN200720099085 U CN 200720099085U CN 201142680 Y CN201142680 Y CN 201142680Y
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- power amplifier
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- control module
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Abstract
The utility model is a detection and control device of a digital field broadcast machine, which consists of an inserting plate and a control circuit on the inserting plate. The device is mainly and technologically characterized in that: the control circuit on the inserting plate consists of a microcontroller, a power amplifier input and control module, a power amplifier output and control module, an analog-to-digital conversion module, a power amplifier state display module and a memorizer. The input port and the output port of the microcontroller are respectively connected with the power amplifier input and control module, the power amplifier output and control module, the power amplifier state display module and the memorizer; the output end of the power amplifier input control module, as well as the output end of the power amplifier output control module, is connected with the input end of the analog-to-digital conversion module; and the output end of an analog-to-digital conversion circuit is connected with the I/O ports of the microcontroller. The device can detect, switch and control the power amplifier of the digital field broadcast machine, and has the advantages of simple operation, convenient use, improved working efficiency, and reduced workload of operators and error probability.
Description
Technical field
The utility model belongs to communication control equipment, the detection control apparatus of the indispensable numeral of an especially a kind of numeral station speech amplifier station speech amplifier.
Background technology
At present, a numeral station speech amplifier is widely applicable in the wired broadcast system in places such as railway transport of passengers station, airport, gymnasium, public market.A numeral station speech amplifier is typically equipped with main power amplifier and the non-firm power amplifier carries out sound radio, when a power amplifier breaks down, need switch to an other power amplifier and broadcast.How the input and the output of main power amplifier and non-firm power amplifier are carried out switching controls to guarantee that a numeral station speech amplifier operate as normal is to weigh an important indicator of a numeral station speech amplifier performance and function.An existing numeral station speech amplifier generally adopts the mode of manual switching to carry out, the output that promptly manually switches between the input with active and standby power amplifier with active and standby power amplifier switches, the subject matter that this control mode and device exist is: (1). the real-time of manual switching mode is relatively poor, influence the normal broadcasting of a digital station speech amplifier, caused the interruption of a station broadcast system; (2). the manual switching mode is made troubles to operating personnel, and goes wrong through regular meeting, (3). and in a single day a numeral station speech amplifier breaks down, and causes the difficulty of trouble hunting, influences the normal operation of system.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and can carry out that having of Comprehensive Control is real-time, simple to operate, the detection control apparatus of field, the numeral station speech amplifier of being convenient to the characteristics of safeguarding to the active and standby power amplifier in the speech amplifier of station.
The utility model solves its technical problem and takes following technical scheme to realize:
The detection control apparatus of a kind of numeral station speech amplifier, constitute by the control circuit on plate and the plate, it is characterized in that: the control circuit on the plate is by single-chip microcomputer, the power amplifier input control module, the power amplifier output control module, analog-to-digital conversion module, power amplifier state display module, memory constitutes, the I/O port of single-chip microcomputer respectively with the power amplifier input control module, the power amplifier output control module, power amplifier state display module and memory are connected, the output of power amplifier input control module and power amplifier output control module is connected with the input of analog-to-digital conversion module respectively, and the output of analog to digital conversion circuit is connected with the I/O port of single-chip microcomputer.
And, described power amplifier input module is made of the input circuit of main power amplifier, the input circuit and the relay of non-firm power amplifier, and described power amplifier output module is made of the output circuit of main power amplifier, the output circuit and the relay of non-firm power amplifier.
And the communication port of described single-chip microcomputer also connects two switching controls buttons.
And described single-chip microcomputer is 8031 chips, and described analog-to-digital conversion module is the ADC0809 chip, and described memory is 2764 storage chips.
Advantage of the present utility model and good effect are:
1. the plate control circuit employing single-chip microcomputer of the detection control apparatus of this numeral station speech amplifier is the control core circuit, single-chip microcomputer is gathered the operating state of power amplifier amplifier in real time by analog to digital conversion circuit and operating state is kept in the memory, when a power amplifier breaks down, to putting input control module and the power amplifier output control module is controlled, realize that the output that main power amplifier and non-firm power amplifier input terminal is carried out switching controls and main power amplifier and non-firm power amplifier switches by single-chip microcomputer.This device adopts intelligent control method to have characteristics simple to operate, easy to use, has improved operating efficiency, reduced operating personnel's workload and has reduced error probability.
2. the detection control apparatus of this numeral station speech amplifier is provided with display module, can be by the indicator light on the front panel with power amplifier input state and power amplifier output state situation, comprise down that states such as machine, fault, short circuit, open circuit are indicated and the level of power amplifier input and power amplifier output volume can be shown, be convenient to the supervision of equipment state and the maintenance after breaking down.
3. the utility model can carry out Detection ﹠ Controling to the power amplifier of field, numeral station speech amplifier, has characteristics simple to operate, easy to use, has improved operating efficiency, has reduced operating personnel's workload and has reduced error probability.
Description of drawings
Fig. 1 is a housing front panel schematic diagram of the present utility model;
Fig. 2 is a control circuit block diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described:
Meeting-place distributor in this railway conference system is made of the control circuit on plate and the plate, and this plate is inserted in the Detection ﹠ Controling of finishing active and standby power amplifier in the controller slot of a numeral station speech amplifier.The front panel 1 of plate is provided with power amplifier input state indicator light 2, power amplifier output state indicator light 3 and five LED light 4 of power amplifier input volume level, five LED light 5 of power amplifier output volume level, power amplifier input state indicator light and power amplifier output state indicator light are used for power amplifier input state and power amplifier output state situation, comprise down state indications such as machine, fault, short circuit, open circuit, power amplifier input five LED light of volume level and five LED light of power amplifier output volume level are used to show that the level of power amplifier input and power amplifier output volume shows.The plate control circuit is by single-chip microcomputer, the power amplifier input control module, the power amplifier output control module, analog-to-digital conversion module, power amplifier state display module, memory and switching controls button constitute, its annexation is: the I/O port of single-chip microcomputer respectively with the power amplifier input control module, the power amplifier output control module, power amplifier state display module and memory are connected, the output of power amplifier input control module and power amplifier output control module is connected with the input of analog-to-digital conversion module respectively, the output of analog to digital conversion circuit is connected with the I/O port of single-chip microcomputer, the communication port of single-chip microcomputer connects two and is used for the switching controls button that active and standby power amplifier switches, and the Artificial Control that is used for active and standby power amplifier is switched.Wherein, this power amplifier input module is made of the input circuit of main power amplifier, the input circuit and the relay of non-firm power amplifier, and this power amplifier output module is made of the output circuit of main power amplifier, the output circuit and the relay of non-firm power amplifier.In the present embodiment, the single-chip microcomputer in the control circuit is 8031 chips, and analog-to-digital conversion module is the ADC0809 chip, and memory is 2764 storage chips.
Operation principle of the present utility model is: power amplifier input control circuit on the control circuit and power amplifier output control circuit are gathered power amplifier input state and power amplifier output status signal respectively, the analog signal conversion that analog-to-digital conversion module transmits power amplifier input control circuit and power amplifier output control circuit is to pass to single-chip microcomputer after the digital signal, and be stored in memory 2764 modules, write down the operating state of current active and standby power amplifier, after single-chip microcomputer carries out analyzing and processing to the state information that collects, respectively power amplifier input control circuit or power amplifier output control circuit are carried out the switching controls of active and standby power amplifier input or active and standby power amplifier output.In addition, single-chip microcomputer can also be controlled active and standby acc power amplifier input terminal or output according to the manual switching instruction by the active and standby machine switching controls button on the speech amplifier of numeral station.
Embodiment described in the utility model is illustrative; rather than it is determinate; therefore the utility model is not limited to the embodiment described in the embodiment; every by those skilled in the art according to other execution modes that the technical solution of the utility model draws, belong to protection range of the present utility model equally.
Claims (4)
1. the detection control apparatus of a numeral station speech amplifier, constitute by the control circuit on plate and the plate, it is characterized in that: the control circuit on the plate is by single-chip microcomputer, the power amplifier input control module, the power amplifier output control module, analog-to-digital conversion module, power amplifier state display module, memory constitutes, the I/O port of single-chip microcomputer respectively with the power amplifier input control module, the power amplifier output control module, power amplifier state display module and memory are connected, the output of power amplifier input control module and power amplifier output control module is connected with the input of analog-to-digital conversion module respectively, and the output of analog to digital conversion circuit is connected with the I/O port of single-chip microcomputer.
2. the detection control apparatus of a numeral according to claim 1 station speech amplifier, it is characterized in that: described power amplifier input module is made of the input circuit of main power amplifier, the input circuit and the relay of non-firm power amplifier, and described power amplifier output module is made of the output circuit of main power amplifier, the output circuit and the relay of non-firm power amplifier.
3. the detection control apparatus of a numeral according to claim 1 station speech amplifier, it is characterized in that: the communication port of described single-chip microcomputer also connects two switching controls buttons.
4. the detection control apparatus of a numeral according to claim 1 station speech amplifier, it is characterized in that: described single-chip microcomputer is 8031 chips, and described analog-to-digital conversion module is the ADC0809 chip, and described memory is 2764 storage chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200990859U CN201142680Y (en) | 2007-12-21 | 2007-12-21 | Detecting control device of digital station field broadcast machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200990859U CN201142680Y (en) | 2007-12-21 | 2007-12-21 | Detecting control device of digital station field broadcast machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201142680Y true CN201142680Y (en) | 2008-10-29 |
Family
ID=40070388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200990859U Expired - Fee Related CN201142680Y (en) | 2007-12-21 | 2007-12-21 | Detecting control device of digital station field broadcast machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201142680Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607252A (en) * | 2013-11-22 | 2014-02-26 | 天津市北海通信技术有限公司 | Standby pool switching method for PA system |
| CN104579201A (en) * | 2014-12-29 | 2015-04-29 | 宁波音王电声股份有限公司 | Power amplifier system |
-
2007
- 2007-12-21 CN CNU2007200990859U patent/CN201142680Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607252A (en) * | 2013-11-22 | 2014-02-26 | 天津市北海通信技术有限公司 | Standby pool switching method for PA system |
| CN104579201A (en) * | 2014-12-29 | 2015-04-29 | 宁波音王电声股份有限公司 | Power amplifier system |
| CN104579201B (en) * | 2014-12-29 | 2017-08-29 | 宁波音王电声股份有限公司 | A kind of power amplifier system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20101221 |