CN203645791U - Intercom system based on bus manner to realize multipath synchronization concurrent communication - Google Patents
Intercom system based on bus manner to realize multipath synchronization concurrent communication Download PDFInfo
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- CN203645791U CN203645791U CN201320863451.9U CN201320863451U CN203645791U CN 203645791 U CN203645791 U CN 203645791U CN 201320863451 U CN201320863451 U CN 201320863451U CN 203645791 U CN203645791 U CN 203645791U
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- 238000004891 communication Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 27
- 230000001360 synchronised effect Effects 0.000 claims description 21
- 230000008054 signal transmission Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 abstract description 6
- 230000002457 bidirectional effect Effects 0.000 abstract description 4
- 230000006855 networking Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses an intercom system based on a bus manner to realize multipath synchronization concurrent communication. The intercom system comprises a host device and 1-15 slave devices, the host device and the slave devices are connected through two pairs of twisted pairs in a bus manner, and the longest line is 300m; and 16 paths of high-audio-quality audio signals can be synchronously transmitted through the two pairs of the twisted pairs in a bidirectional manner. The intercom system employs the bus-mode communication line to perform remote transmission of the multipath real-time audio and control signals, and hardware and software technologies are specially applied to networking of multiple close-distance audio terminal equipment and sending of remote communication. The intercom system is advantageous in that multipath intercoms can be initiated at the same time and cannot cause interference to each other; the intercom system has an echo counteracting function; the intercom system has the advantages of good transportability, good versatility, good compatibility and the simple protocol; and the intercom system also has the advantages of easy implementation, high efficiency, the wide application range and strong functions.
Description
Technical field
The utility model belongs to wired intercom communication field, specifically a kind of intercom system that realizes Multi-path synchronous concurrent communication based on bus mode.
Background technology
At present, all can be applied to a kind of intercommunication help facility based on analog signal transmission in ATM in bank, prison storehouse, prison, this equipment principle is fairly simple, utilizes the principle of similar telephone set analog line transmission, and multiple talk back equipments are attempted by a circuit.Existing this kind equipment exist actual installation easily introduce noise, intercommunication time delay higher, can not concurrent Multichannel intercom, shortcoming that can not trans-regional long-range intercommunication.And IP based network talk back equipment is because of the problem that demand of specialty is higher and cost compare is high, fail to popularize widely use.
Utility model content
The purpose of this utility model is to provide a kind of intercom system that realizes Multi-path synchronous concurrent communication based on bus mode, this system has solved bank, prison talk back equipment concurrent Multichannel intercom simultaneously, long-range intercommunication weak effect, intercommunication service efficiency is low, equipment dependability is poor, the shortcoming that intercommunication time delay is higher.
For achieving the above object, the utility model provides following technical scheme:
Realize an intercom system for Multi-path synchronous concurrent communication based on bus mode, comprise that main process equipment and 1-15 platform are from machine equipment, and main process equipment with from adopting bus modes to be connected with the 2 pairs of twisted-pair feeders between machine equipment, bus line is the longest 300 meters; Can transmit 16 tunnel high tone quality audio signals by synchronous bidirectional by 2 pairs of twisted-pair feeders.
As further program of the utility model: described bus is RS485 bus.
As further program of the utility model: described main process equipment is powered by DC12V; Adopt POE mode by bus-powered from machine equipment.
As further program of the utility model: adopt ICP/IP protocol Switching Module transmission information between described main process equipment and intercom system; Main process equipment and adopt analog signal transmission between machine equipment, thus the information security of main process equipment and the whole network of intercom system ensured.
As further program of the utility model: described main process equipment adopts wall-hanging design, with the synchronous concurrent mechanism module of DSP encoding and decoding engine, DPF digital filtering module, echo cancellation module, signal connecting successively; Described from machine equipment employing embedded design, meet security requirement.
This intercom system utilizes the communication line (as: RS485) of mode bus to carry out hardware and the software engineering of the remote transmission of multichannel real-time audio and control signal, is specifically applied to multiple closely (in 300 meters) voice frequency terminal equipment and networks and carry out concurrent telecommunication (based on local area network (LAN) or the Internet).Key point is to utilize 2 pairs of twisted-pair feeder synchronous bidirectionals to transmit 16 tunnel high tone quality audio signals.Compared with prior art, the beneficial effects of the utility model are:
1. can initiate Multichannel intercom simultaneously, can not cause each other interference;
2. device has echo cancel function;
3. there is portability, versatility, compatibility is good, agreement is simple;
4. have and be easy to realize, the high and applied range of efficiency, the advantage that function is strong.
Accompanying drawing explanation
Fig. 1 is the equipment connection schematic diagram of realizing the intercom system of Multi-path synchronous concurrent communication based on bus mode.
Fig. 2 is the schematic diagram of realizing the intercom system of Multi-path synchronous concurrent communication based on bus mode.
Fig. 3 is the communication protocol schematic diagram of realizing the intercom system of Multi-path synchronous concurrent communication based on bus mode.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-3, in the utility model embodiment, a kind of intercom system that realizes Multi-path synchronous concurrent communication based on bus mode, comprises that main process equipment and 1-15 platform are from machine equipment, and main process equipment with from adopting bus modes to be connected with the 2 pairs of twisted-pair feeders between machine equipment, circuit is the longest 300 meters; Can transmit 16 tunnel high tone quality audio signals by synchronous bidirectional by 2 pairs of twisted-pair feeders.
As further program of the utility model: described main process equipment is powered by DC12V; Adopt POE mode by bus-powered from machine equipment.
As further program of the utility model: adopt ICP/IP protocol Switching Module transmission information between described main process equipment and intercom system; Main process equipment and adopt analog signal transmission between machine equipment, thus the information security of main process equipment and the whole network of intercom system ensured.
As further program of the utility model: described main process equipment adopts wall-hanging design, with the synchronous concurrent mechanism module of DSP encoding and decoding engine, DPF digital filtering module, echo cancellation module, signal connecting successively; Described from machine equipment employing embedded design, meet security requirement.
Operation principle of the present utility model is: described main process equipment master sends out synchronization packets, coordinates every digital received and sent from machine equipment, to prevent that big data quantity voice data from producing collision in bus network; Main process equipment be 2Mbps from the communication baud rate of machine equipment, each bag 66 bytes (2 byte of sync packet header+64 byte data); From machine equipment, its microphone signal is passed through to AD converter sample code, wrap synchronized transmission to main process equipment with one of 64 byte; Main process equipment is by the upstream data of 16 64 bytes, the data that amount to 1024 bytes are transferred to the main process equipment of far-end with the form of IP packet by Ethernet, the main process equipment of far-end receives IP packet, according to different slave device addresses, with bag of 64 byte, synchronized transmission is given from machine equipment; Promote loud speaker through decoding with power amplifier from machine equipment, play out sound.The utility model is supported the hot plug of slave equipment live, and slave device looses power does not affect bus communication; Can carry out Multichannel intercom audio signal transmission from machine equipment simultaneously, be independent of each other.Multipath audio signal is transmitting procedure, automatically dispense flow rate resource simultaneously.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the utility model.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this specification is described according to execution mode, but be not that each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
Claims (5)
1. realize the intercom system of Multi-path synchronous concurrent communication based on bus mode for one kind, it is characterized in that, comprise that main process equipment and 1-15 platform are from machine equipment, and main process equipment with from adopting bus modes to be connected with the 2 pairs of twisted-pair feeders between machine equipment, bus line is the longest 300 meters.
2. the intercom system that realizes Multi-path synchronous concurrent communication based on bus mode according to claim 1, is characterized in that, described bus is RS485 bus.
3. the intercom system that realizes Multi-path synchronous concurrent communication based on bus mode according to claim 1, is characterized in that, described main process equipment is powered by DC12V; Adopt POE mode by bus-powered from machine equipment.
4. the intercom system that realizes Multi-path synchronous concurrent communication based on bus mode according to claim 1, is characterized in that, adopts ICP/IP protocol Switching Module transmission information between described main process equipment and intercom system; Main process equipment and adopt analog signal transmission between machine equipment.
5. the intercom system that realizes Multi-path synchronous concurrent communication based on bus mode according to claim 1, it is characterized in that, described main process equipment adopts wall-hanging design, with the synchronous concurrent mechanism module of DSP encoding and decoding engine, DPF digital filtering module, echo cancellation module, signal connecting successively; Described from machine equipment employing embedded design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863451.9U CN203645791U (en) | 2013-12-26 | 2013-12-26 | Intercom system based on bus manner to realize multipath synchronization concurrent communication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863451.9U CN203645791U (en) | 2013-12-26 | 2013-12-26 | Intercom system based on bus manner to realize multipath synchronization concurrent communication |
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| CN203645791U true CN203645791U (en) | 2014-06-11 |
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| CN201320863451.9U Expired - Fee Related CN203645791U (en) | 2013-12-26 | 2013-12-26 | Intercom system based on bus manner to realize multipath synchronization concurrent communication |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358256A (en) * | 2018-12-20 | 2019-02-19 | 上海欧秒电力监测设备有限公司 | The arrester on-line monitoring system of synchronized sampling is realized in RS485 communication |
| CN114520668A (en) * | 2020-11-20 | 2022-05-20 | 海能达通信股份有限公司 | Signal transmission method, signal transmission system and computer storage medium |
-
2013
- 2013-12-26 CN CN201320863451.9U patent/CN203645791U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358256A (en) * | 2018-12-20 | 2019-02-19 | 上海欧秒电力监测设备有限公司 | The arrester on-line monitoring system of synchronized sampling is realized in RS485 communication |
| CN114520668A (en) * | 2020-11-20 | 2022-05-20 | 海能达通信股份有限公司 | Signal transmission method, signal transmission system and computer storage medium |
| CN114520668B (en) * | 2020-11-20 | 2024-02-02 | 海能达通信股份有限公司 | Signal transmission method, signal transmission system and computer storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHANGSHA SPON COMMUNICATION TECHNOLOGY CO.,LTD. Assignor: Yu Qiushi Contract record no.: 2014430000169 Denomination of utility model: Intercom system based on bus manner to realize multipath synchronization concurrent communication Granted publication date: 20140611 License type: Exclusive License Record date: 20141223 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210907 Address after: No. 70, Nantang Road, Lugu street, Changsha high tech Development Zone, Changsha City, Hunan Province, 410205 Patentee after: Shibang Communication Co.,Ltd. Address before: 410000 No. 88, Changlang Road, Furong district, Changsha City, Hunan Province Patentee before: Yu Qiushi |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 |
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| CF01 | Termination of patent right due to non-payment of annual fee |