CN203278848U - Intelligent addressable campus broadcasting system - Google Patents
Intelligent addressable campus broadcasting system Download PDFInfo
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- CN203278848U CN203278848U CN 201320307469 CN201320307469U CN203278848U CN 203278848 U CN203278848 U CN 203278848U CN 201320307469 CN201320307469 CN 201320307469 CN 201320307469 U CN201320307469 U CN 201320307469U CN 203278848 U CN203278848 U CN 203278848U
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Abstract
The utility model mainly relates to an intelligent addressable campus broadcasting system and belongs to the field of broadcasting technology. The intelligent addressable campus broadcast system comprises a host computer, a main computer and broadcasting nodes. The main computer is connected with the broadcasting nodes in a wireless manner; the host computer is connected with the main computer via a shield cable; the main computer analyzes an order sent by the host computer and configures an FM emitter, so broadcasting and sending of a simulated audio signal are achieved; the main computer also sends an order to the broadcasting nodes via the Zigbee network, and the broadcasting nodes configures an FM receiver according to the order, so receiving of a broadcasting signal is achieved; and the broadcasting signal passes through an audio power amplifier and then drives a loudspeaker to send sound. The intelligent addressable campus broadcasting system is capable of achieving point-to-point broadcasting, multicast and dynamic grouping broadcasting of multiple programmes; wireless transmission and control are achieved, so a problem of wiring of a traditional campus broadcasting system is resolved, efficiency of the broadcasting system and quality of broadcasts are improved and functions of the campus broadcasting system are enriched; and the intelligent addressable campus broadcasting system is suitable for application and promotion.
Description
Technical field
The utility model belongs to the broadcast technology field, particularly relates to a kind of addressable intelligent Campus Broadcasting System.
Background technology
Traditional Campus Broadcasting System great majority adopt the level pressure transmission means, and this mode is that audio signal is directly amplified, and carries based on power signal.There is following problem in such broadcast system, 1. must independently lay special-purpose voice band line; 2. can't change line function by simple management equipment upgrading; 3. the broadcast message in same circuit is identical, can't realize Dynamic Packet broadcasting or single-point broadcasting; 4. the broadcast of the information that repeats all needed announcer's manpower intervention, degree of intelligence is poor; 5. owing to adopting the unicast mode, the debugging of system and maintenance need to be carried out one by one; 6. tonequality is relatively poor, the distortion factor is high, Hz-KHz is little.7. installation is complicated, maintenance is inconvenient, failure rate is high.8. level pressure wired broadcasting is in strict accordance with the configuration of the matching principle of impedance and power, often because transformer burn or the audio amplifier fault burns out power amplifier.
Summary of the invention
Goal of the invention
The utility model provides a kind of addressable intelligent Campus Broadcasting System, its purpose is the complementary advantage in conjunction with ZigBee technology and FM technology, is improving under the prerequisite of broadcasting-quality, realizes the wireless penetration of campus broadcasting, promote the operating efficiency of broadcast system, enrich the function of broadcast system.
Technical scheme
A kind of addressable intelligent Campus Broadcasting System, it is characterized in that: this broadcast system mainly comprises main frame and broadcast node, broadcast node comprises with the broadcast node of routing function and common broadcast node, main frame is connected with broadcast node by wireless mode, and this system also comprises can carry out with main frame the host computer of exchanges data.
Described broadcast node is at least 1.
Main frame comprises Zigbee coordinator unit, serial communication modular and FM reflector, and the Zigbee coordinator unit is connected with the FM reflector with serial communication modular.
Main frame comprises a FM reflector at least.
Broadcast node with routing function comprises Zigbee router device, FM receiver, audio-frequency power amplifier and loud speaker, Zigbee router device and the communication connection of FM receiver, the FM receiver is connected with audio-frequency power amplifier, and loud speaker is connected with audio-frequency power amplifier.
The common broadcast node comprises Zigbee terminal node equipment, FM receiver, audio-frequency power amplifier and loud speaker, Zigbee terminal node equipment and the communication connection of FM receiver, the FM receiver is connected with audio-frequency power amplifier, and loud speaker is connected with audio-frequency power amplifier.
Host computer is connected on main frame by shielded type cable, and host computer adopts PC and main-machine communication, between host computer and main frame with 232 mode the transmission of datas.
Advantage and effect
By the enforcement of technical solutions of the utility model, the engineering staff can carry out remote operation to Campus Broadcasting System by PC or industrial computer, can realize unattended operation and telemanagement, has improved operating efficiency; Adopt ZigBee technology as grid topology basis, broadcast system feature richness.
Advantage of the present utility model and good effect are:
1, need not to lay special circuit, cost;
2, the power loss on the circuit, improved efficiency have been eliminated;
3, overlap the stereophonic broadcasting program more and broadcast simultaneously, the program capacity is large;
4, broadcasting tonequality is good, and system bandwidth is high, and frequency response is good;
5, can realize the functions such as point-to-point broadcasting, multicast, Dynamic Packet broadcasting;
6, host computer can carry out United Dispatching and management to whole system, can realize the multiple application mode of broadcast system by the optimization system management software.
Description of drawings
Fig. 1 is the utility model general structure schematic diagram;
Fig. 2 is the utility model main machine structure schematic diagram;
Fig. 3 is the broadcast node structural representation that the utlity model has routing function;
Fig. 4 is the utility model general function broadcast node structural representation;
Fig. 5 is the utility model host circuit figure;
Fig. 6 is the utility model broadcast node circuit diagram;
Fig. 7 is the utility model upper computer software flow chart;
Fig. 8 is the utility model mainframe program flow chart;
Fig. 9 is the utility model broadcast node program flow diagram;
Figure 10 is the utility model host computer and main-machine communication agreement.
Description of reference numerals:
Main frame, 2. with the broadcast node of routing function, 3. common broadcast node, 4. Zigbee router device, 5. FM receiver, 6. audio-frequency power amplifier, 7. loud speaker, 8. Zigbee coordinator unit, 9. serial communication modular, 10. FM reflector, 11. Zigbee terminal node equipment.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described further:
The utility model is a kind of addressable intelligent Campus Broadcasting System, it is characterized in that: Fig. 1 is general structure schematic diagram of the present utility model, as shown in fig. 1, this broadcast system mainly comprises main frame 1 and broadcast node, broadcast node comprises with the broadcast node 2 of routing function and common broadcast node 3, main frame is connected with broadcast node by wireless mode, and this system also comprises can carry out with main frame the host computer of exchanges data.
Described broadcast node is at least 1.
Fig. 2 is main machine structure schematic diagram of the present utility model, and as shown in Figure 2, main frame 1 comprises Zigbee coordinator unit 8, serial communication modular 9 and FM reflector 10, and Zigbee coordinator unit 8 is connected with the FM reflector with serial communication modular 9 and is connected.
Described main frame 1 comprises a FM reflector 10 at least.
Fig. 3 is the broadcast node structural representation with routing function of the present utility model, as shown in Figure 3, broadcast node 2 with routing function comprises Zigbee router device 4, FM receiver 5, audio-frequency power amplifier 6 and loud speaker 7, Zigbee router device 4 and 5 communication connections of FM receiver, FM receiver 5 is connected with audio-frequency power amplifier 6, and loud speaker 7 is connected with audio-frequency power amplifier 6.
Fig. 4 is general function broadcast node structural representation of the present utility model, as shown in Figure 4, general function broadcast node 3 comprises Zigbee terminal node equipment 11, FM receiver 5, audio-frequency power amplifier 6 and loud speaker 7, Zigbee terminal node equipment 11 and 5 communication connections of FM receiver, FM receiver 5 is connected with audio-frequency power amplifier 6, and loud speaker 7 is connected with audio-frequency power amplifier 6.
Concrete control principle is seen Fig. 5 and Fig. 6.
As shown in Figure 5, the Zigbee coordinator unit is the control centre of main frame 1, and the Zigbee module is connected with serial communication modular, receives control command from host computer, and the Zigbee module is passed through I
2The C bus is connected with the FM reflector, the parameters such as tranmitting frequency of configuration FM reflector.
As shown in Figure 6, the Zigbee router device in broadcast node or Zigbee terminal node equipment are the control centres of broadcast node, and the Zigbee module is passed through I
2The C bus is connected with the FM receiver, the parameters such as the receive frequency of configuration FM receiver, volume, and the analog signal of FM receiver output is carried out power amplification through audio-frequency power amplifier, and output connects two loud speakers, with audio frequency reduction output.
The concrete course of work is seen Fig. 7, Fig. 8 and Fig. 9.
Fig. 8 is the utility model mainframe program flow chart, as shown in Figure 8, the initializes host hardware device, add network etc. economize on electricity to be broadcast, after completing, the FM reflector is carried out pre-configuredly, wait for the host computer order, after receiving orders, resolution data bag, main frame 1 are according to each FM reflector running parameter of command configuration, and main frame 1 is by wireless transmission method order respective broadcast node change running parameter simultaneously.
Fig. 9 is the utility model broadcast node program flow diagram, as shown in Figure 9, initialization broadcast node hardware device, the search radio network also adds automatically, enter the Host Command state of waiting for after completing, after receiving orders, according to order, the running parameters such as this spot broadcasting node receive frequency are configured.
Fig. 7 is upper computer software flow chart of the present utility model, as shown in Figure 7, program detects and has or not user profile to generate, configuration file detected and compare in real time the relation of configuration file time of implementation and system time,, when Preset Time arrived, host computer started configuration automatically, send packet to main frame, enter wait state after completing.
Upper computer software adopts Visual C++ to write, can be by the receive frequency of each broadcast node of host computer interface configurations; Volume; Broadcast packe; Operating state; The tranmitting frequency of each FM reflector in also can configure host; Operating state.
Upper computer software is installed on PC, host computer interface parameters will be set after startup, host computer is connected on system host 1 by shielded type cable, the setting of host computer parameter is completed, after clicking confirmation, host computer sends order by serial ports to main frame by default communications protocol format, concrete communications protocol format as shown in figure 10: be the packet frame head foremost, be used for the synchronous of main frame and transmitting terminal; Second portion is data packet length, is used for informing that main frame receives length; Third part is broadcast type, and this part is supported point-to-point broadcasting, multicast, all broadcasted the definition of isotype and dormancy isotype; The 4th part is the broadcast node address, is used for informing the address cover under this mode data packet of main frame; Be the verification zone at last, be used for guaranteeing the accurate transmission of data.
Claims (7)
1. addressable intelligent Campus Broadcasting System, it is characterized in that: this broadcast system mainly comprises main frame (1) and broadcast node, broadcast node comprises broadcast node (2) and the common broadcast node (3) with routing function, main frame is connected with broadcast node by wireless mode, and this system also comprises can carry out with main frame the host computer of exchanges data.
2. addressable intelligent Campus Broadcasting System according to claim 1, it is characterized in that: described broadcast node is at least 1.
3. addressable intelligent Campus Broadcasting System according to claim 1, it is characterized in that: main frame (1) comprises Zigbee coordinator unit (8), serial communication modular (9) and FM reflector (10), and Zigbee coordinator unit (8) is connected 10 with serial communication modular (9) with the FM reflector) be connected.
4. according to claim 1 or 3 described addressable intelligent Campus Broadcasting Systems, it is characterized in that: described main frame (1) comprises a FM reflector (10) at least.
5. addressable intelligent Campus Broadcasting System according to claim 1, it is characterized in that: the broadcast node (2) with routing function comprises Zigbee router device (4), FM receiver (5), audio-frequency power amplifier (6) and loud speaker (7), Zigbee router device (4) and FM receiver (5) communication connection, FM receiver (5) is connected with audio-frequency power amplifier (6), and loud speaker (7) is connected with audio-frequency power amplifier (6).
6. addressable intelligent Campus Broadcasting System according to claim 1, it is characterized in that: common broadcast node (2) comprises Zigbee terminal node equipment (11), FM receiver (5), audio-frequency power amplifier (6) and loud speaker (7), Zigbee terminal node equipment (11) and FM receiver (5) communication connection, FM receiver (5) is connected with audio-frequency power amplifier (6), and loud speaker (7) is connected with audio-frequency power amplifier (6).
7. addressable intelligent Campus Broadcasting System according to claim 1, it is characterized in that: host computer is connected on main frame (1) by shielded type cable, host computer adopts PC to communicate by letter with main frame (1), between host computer and main frame (1) with 232 mode the transmission of datas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320307469 CN203278848U (en) | 2013-05-31 | 2013-05-31 | Intelligent addressable campus broadcasting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320307469 CN203278848U (en) | 2013-05-31 | 2013-05-31 | Intelligent addressable campus broadcasting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278848U true CN203278848U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320307469 Expired - Fee Related CN203278848U (en) | 2013-05-31 | 2013-05-31 | Intelligent addressable campus broadcasting system |
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| Country | Link |
|---|---|
| CN (1) | CN203278848U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871489A (en) * | 2015-10-14 | 2016-08-17 | 深圳市飞图视讯有限公司 | Campus broadcast system |
| CN106254013A (en) * | 2016-08-31 | 2016-12-21 | 蒙宇 | A kind of Campus Broadcasting System |
-
2013
- 2013-05-31 CN CN 201320307469 patent/CN203278848U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871489A (en) * | 2015-10-14 | 2016-08-17 | 深圳市飞图视讯有限公司 | Campus broadcast system |
| CN105871489B (en) * | 2015-10-14 | 2019-08-02 | 深圳市飞图视讯有限公司 | Campus Broadcasting System |
| CN106254013A (en) * | 2016-08-31 | 2016-12-21 | 蒙宇 | A kind of Campus Broadcasting System |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20150531 |
|
| EXPY | Termination of patent right or utility model |