CN201839294U - Bi-channel receiver with automatic identifying and switching function - Google Patents
Bi-channel receiver with automatic identifying and switching function Download PDFInfo
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- CN201839294U CN201839294U CN2010205264855U CN201020526485U CN201839294U CN 201839294 U CN201839294 U CN 201839294U CN 2010205264855 U CN2010205264855 U CN 2010205264855U CN 201020526485 U CN201020526485 U CN 201020526485U CN 201839294 U CN201839294 U CN 201839294U
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- channel receiver
- rds
- double
- automatic identification
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Abstract
The utility model discloses a bi-channel receiver with an automatic identifying and switching function, and relates to the technical field of a bi-channel receiver. The bi-channel receiver comprises two receiving channels, i.e., a main receiving channel and a remote data service (RDS) receiving channel. Under the common condition, the information is received from an antenna and transmitted to a main controller by the main receiving channel to be processed, and the processed signal is decoded by a hardware decoding circuit, amplified by a power amplifying circuit, and output by a loudspeaker; and under the emergency condition, a control command of inversion frequency is transmitted into the main controller by the RDS receiving channel and is software decoded through an internal procedure, and the signal is transmitted to a power amplifying circuit to be amplified and is output by the loudspeaker, so that the emergency broadcast can be heard. The bi-channel receiver has the benefits that the receiving of two frequencies can be realized, therefore, the system resource can be greatly saved; and the maintenance of a product is convenient, therefore, the construction cost can be reduced.
Description
Technical field
The utility model relates to double-channel receiver technical field, it specifically is a kind of double-channel receiver with automatic identification handoff functionality, simultaneously can accept to set the FM signal of two frequencies, be applicable to the broadcast system of public safety Emergency Assistance, in common countryside broadcast and campus broadcasting, also can be well utilized.
Background technology
Broadcasting equipment in the market is a lot, but great majority are speech amplifiers that common single channel receives, and can't receive two frequencies.Common broadcasting receiver can only receive a kind of frequency, and play mode is single, if change accepting frequency and need manually going change of it, loaded down with trivial details and can't guarantee real-time, can't satisfy the demand of market diversification.
Summary of the invention
In order to solve the shortcoming of above-mentioned prior art, the utility model provides a kind of double-channel receiver with automatic identification handoff functionality, the switching that on a kind of basis of communication frequency, also has the another one channel to utilize and can the Autonomous Control interchannel, and the differentiation of priority is arranged.
The utility model is realized with following technical scheme: a kind of double-channel receiver with automatic identification handoff functionality, comprise main receive channel, the master controller that is connected with main receive channel, the hardware decoding circuit that is connected with master controller, the power amplifier that is connected with the hardware decoding circuit, the loud speaker that is connected with power amplifier; It is characterized in that: also have a RDS receive channel that is connected with master controller, be equipped with in the master controller RDS receive channel control signal handle, the automatically switch decoding software of channel.
The beneficial effects of the utility model are: can realize the reception to two frequencies, save the resource of system greatly; Product maintenance is convenient, reduces construction cost.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model theory diagram;
Fig. 2 is the utility model electrical schematic diagram.
Embodiment
As shown in Figure 1, have the double-channel receiver of automatic identification handoff functionality, two receive channels are arranged, main receive channel and RDS receive channel.Main receive channel is that low priority receives, information receives from antenna under the normal conditions, arrive master controller by main receive channel, being admitted to the hardware decoding circuit through master controller processing back signal decodes, the good signal of will decoding is then sent into and is amplified in the power amplifier, by loud speaker output, just can hear melodious broadcasting.The RDS receive channel is that high priority receives, under urgent situation, the main receive channel of possible low priority is also in operate as normal, receive the signal the come RDS receive channel by high priority this time from antenna the control command of inversion frequency is sent to master controller, signal carries out software decode by the master controller internal processes, the good signal of will decoding is then delivered to and is amplified in the power amplifier, and the signal after the amplification is exported by loud speaker, just can hear urgent broadcasting.
As shown in Figure 2, power module U1 adopts voltage stabilizing transformer REG1117-3.3, and the operating voltage of 3.3V is provided for system.Master controller adopts single chip computer AT Mega8 U3, and main receive channel adopts radio reception chip TEA5767, and the hardware decoding circuit adopts decoding chip PTC2272, and the RDS receive channel adopts RDS decoding chip Si4706 U2, and power amplifier adopts integrated amplifier LM3886.
29 pin of single chip computer AT Mega8 are connecting resistance R12, capacitor C 8 respectively, and the resistance R 12 and capacitor C 8 other ends connect VCC and ground respectively, has constituted the electrify restoration circuit of single-chip microcomputer; 7,8 pin crystal oscillator Y1 in parallel, and reach the end of capacitor C 9, C10 respectively, the other end ground connection of capacitor C 9, C10, this has constituted the Single Chip Microcomputer (SCM) system oscillating circuit.2,9, the 10 pin wind of RDS decoding chip Si4706 are not connected by 32,27,28 pin of pull-up resistor and single chip computer AT Mega8,4 pin of RDS decoding chip Si4706 connect 16 pin of single-chip microcomputer ATMega8, and 2,3 pin of usb interface U4 are connected with 30,31 pin of single chip computer AT Mega8 respectively.5 pin of jack P1 connect 1 pin of single chip computer AT Mega8,2 pin of jack P1 connect 5 pin of jack P5,1 of jack P2,2,3,4 pin are connected respectively to 15 of single chip computer AT Mega8,16,17,29 pin, jack P3 1,2,3,4 pin are connected respectively to 23 of single chip computer AT Mega8,24,25,26 pin, 2 of jack P4,3,4,5 pin are connected respectively to 2 of single chip computer AT Mega8,9,10,11 pin, 6 of jack P5,7,8 pin respectively with 13 of single chip computer AT Mega8,15,12 pin connect, decoding chip PTC2272 is by jack P1, P3, P4 is connected with single chip computer AT Mega8, and integrated amplifier LM3886 is connected with single chip computer AT Mega8 by jack P5.Software decode is then realized by the program that is solidificated among the single chip computer AT Mega8U3.
The concrete application: 1, the realization of government organs: use small-sized transmitter in other area of ground one-level, the transmitter of large-scale band RDS is used in his upper level city, small-sized at ordinary times transmitter can use the normal propaganda of broadcasting to use, big city has the right to use that high priority just can be robbed the occupation of land one-level when emergency takes place, makes the most urgent situation obtain playing in the very first time.2, the realization of campus system: form by a lot of parts in the campus, can be put into the campus to receiver respectively everywhere, frequency in various piece use at ordinary times oneself is broadcasted, when whole school's notice or short notice are arranged, there is the broadcast right of high priority the studio, school, then can own circuit switched broadcast the rationalization more and the practicability that make the broadcasting change like this.
Claims (6)
1. double-channel receiver with automatic identification handoff functionality, comprise main receive channel, the master controller that is connected with main receive channel, the hardware decoding circuit that is connected with master controller, the power amplifier that is connected with the hardware decoding circuit, the loud speaker that is connected with power amplifier; It is characterized in that: also have a RDS receive channel that is connected with master controller.
2. the double-channel receiver with automatic identification handoff functionality according to claim 1 is characterized in that: described master controller adopts single chip computer AT Mega8.
3. the double-channel receiver with automatic identification handoff functionality according to claim 1 is characterized in that: described main receive channel adopts radio reception chip TEA5767.
4. the double-channel receiver with automatic identification handoff functionality according to claim 1 is characterized in that: described hardware decoding circuit adopts decoding chip PTC2272.
5. the double-channel receiver with automatic identification handoff functionality according to claim 1 is characterized in that: described RDS receive channel adopts RDS decoding chip Si4706.
6. the double-channel receiver with automatic identification handoff functionality according to claim 1 is characterized in that: described power amplifier adopts integrated amplifier LM3886.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205264855U CN201839294U (en) | 2010-03-28 | 2010-08-26 | Bi-channel receiver with automatic identifying and switching function |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020155542.3 | 2010-03-28 | ||
| CN201020155542 | 2010-03-28 | ||
| CN2010205264855U CN201839294U (en) | 2010-03-28 | 2010-08-26 | Bi-channel receiver with automatic identifying and switching function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201839294U true CN201839294U (en) | 2011-05-18 |
Family
ID=44009395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205264855U Expired - Lifetime CN201839294U (en) | 2010-03-28 | 2010-08-26 | Bi-channel receiver with automatic identifying and switching function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201839294U (en) |
-
2010
- 2010-08-26 CN CN2010205264855U patent/CN201839294U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 221000 Jiangsu city in Xuzhou Province, the liberation of South City Quanshan District Mine Technology Park A block, 119 and 109 floor, room 120 Patentee after: Xuzhou Wei Wei electronic Limited by Share Ltd Address before: 221005 Jiangsu province Xuzhou Yanping Road No. 23 Patentee before: Xuzhou Chaowei Electronic Equipment Manufacture Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bi-channel receiver with automatic identifying and switching function Effective date of registration: 20171228 Granted publication date: 20110518 Pledgee: Xuzhou Productivity Promotion Center Pledgor: Xuzhou Wei Wei electronic Limited by Share Ltd Registration number: 2017320000065 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190108 Granted publication date: 20110518 Pledgee: Xuzhou Productivity Promotion Center Pledgor: Xuzhou Wei Wei electronic Limited by Share Ltd Registration number: 2017320000065 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bi-channel receiver with automatic identifying and switching function Effective date of registration: 20190111 Granted publication date: 20110518 Pledgee: Xuzhou Productivity Promotion Center Pledgor: Xuzhou Wei Wei electronic Limited by Share Ltd Registration number: 2019320000036 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |