CN203968268U - Adopt the floor distributor interface circuit of Double-strand transmission - Google Patents
Adopt the floor distributor interface circuit of Double-strand transmission Download PDFInfo
- Publication number
- CN203968268U CN203968268U CN201420344328.0U CN201420344328U CN203968268U CN 203968268 U CN203968268 U CN 203968268U CN 201420344328 U CN201420344328 U CN 201420344328U CN 203968268 U CN203968268 U CN 203968268U
- Authority
- CN
- China
- Prior art keywords
- electrically connected
- power supply
- indoor set
- circuit
- network interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 230000000007 visual effect Effects 0.000 claims description 6
- 230000008054 signal transmission Effects 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000004088 simulation Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 4
- 230000006855 networking Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Abstract
The utility model provides a kind of floor distributor interface circuit that adopts Double-strand transmission, originally comprises the audio frequency difference channel being electrically connected to the intercom of doorway machine, the video driver circuit being electrically connected to the camera of doorway machine, the level state testing circuit being electrically connected to the control button of doorway machine, RJ45 standard network interface, is power supply circuits and the CPU of indoor set power supply; Audio frequency difference channel, video driver circuit and level state testing circuit are electrically connected to RJ45 standard network interface respectively, and RJ45 standard network interface is electrically connected to indoor set; Level state testing circuit is electrically connected to CPU, and CPU is electrically connected to power supply circuits, and power supply circuits are electrically connected to indoor set by RJ45 standard network interface.When CPU detects the signal of level state testing circuit, can control power supply circuits is indoor set power supply, connects speech talkback and video channel simultaneously, makes audio frequency and video and voltage synchronous, guarantees stable signal transmission.
Description
Technical field
The utility model relates to and belongs to electronic communication field, relates in particular to the floor distributor interface circuit of a kind of intelligent residential district, building visual intercom.
Background technology
Building talkback is that current all new residential areas necessarily require the basic security safeguards system being equipped with, the residential quarters to past exploitation, and public security technical precaution department is also supervising the transformation of Property Management of residence department to install building conversational system additional.Building conversational system the audio-video signal type of transmission, can be divided into simulation visible dialogue system (transportation simulator audio-video signal in grid) and digital visual intercom system (in grid, transmit be through H.264 or the digital signal of other mode compressed encodings) two large classes, simulation visible dialogue system is applied in low and middle-end residential quarters by most of developer at present because of cost advantage, be still the main flow of existing market, digital visual intercom system is mainly used in accounting relatively little approximately 30% ratio in market in high-level residence.
As everyone knows, the performance of simulation visible dialogue system will be lower than digital visual intercom system, the main cause that causes the high occupation rate of market of simulation visible dialogue system is that the cost of simulation visible dialogue system is low, therefore for the investor who uses the residential quarters building conversational system of simulation visible dialogue system, the cost performance of system becomes the main standard of selecting brand, and improving to greatest extent cost performance is the important directions of simulation visible dialogue system development.
For addressing the above problem, applicant in first to file name be called the utility model patent of " coaxial cable unshielded twisted pair fiber mix networking intercom system ", in above-mentioned patent, indoor set is to be electrically connected to floor distributor by unshielded twisted pair, because the price of unshielded twisted pair is less than half of coaxial cable price, therefore with do not improve before the transmission means of former coaxial cable compare, greatly reduce line material cost.And the utility model aims to provide a kind of floor distributor interface circuit that is applied to the intercom of above-mentioned intercom system.
Summary of the invention
The purpose of this utility model is to provide a kind of floor distributor interface circuit that in coaxial cable unshielded twisted pair fiber mix networking intercom system, floor distributor is connected with indoor set that facilitates.
For achieving the above object, the utility model provides a kind of floor distributor interface circuit that adopts Double-strand transmission, comprises the audio frequency difference channel being electrically connected to the intercom of doorway machine, the video driver circuit being electrically connected to the camera of doorway machine, the level state testing circuit being electrically connected to the control button of doorway machine, RJ45 standard network interface, is power supply circuits and the CPU of indoor set power supply; Described audio frequency difference channel, video driver circuit and level state testing circuit are electrically connected to RJ45 standard network interface respectively, and described RJ45 standard network interface is electrically connected to indoor set; Described level state testing circuit is electrically connected to CPU, and described CPU is electrically connected to power supply circuits, and described power supply circuits are electrically connected to indoor set by RJ45 standard network interface.
Wherein, the supply power voltage of described floor distributor side is greater than the minimum voltage that indoor set can normally be worked under maximum power dissipation.
Wherein, described floor distributor side supply power voltage is 30V, and the minimum voltage that described indoor set can normally be worked under maximum power dissipation is 18V.
Wherein, described power supply circuits comprise four-way switch circuit, and described four-way switch circuit is electrically connected to four indoor sets of this floor distributor place floor respectively.
The beneficial effects of the utility model are: compared with prior art, the floor distributor interface circuit of the employing Double-strand transmission that the utility model provides, when CPU detects the signal of level state testing circuit, can control power supply circuits is indoor set power supply, connect speech talkback and video channel simultaneously, audio frequency difference channel and video driver circuit are synchronizeed with power supply, guarantee stable signal transmission; Floor distributor adopts standard RJ45 interface, welding one to one the mode of connection with on-the-spot the end of a thread of prior art compares, system Installation and Debugging operation has not only been simplified in this improvement, has also significantly reduced construction working amount simultaneously, has reduced the cost of labor of building conversational system networking.
Accompanying drawing explanation
Fig. 1 is the block diagram of the floor distributor interface circuit of employing Double-strand transmission of the present utility model.
Main element symbol description is as follows:
11, audio frequency difference channel 12, video driver circuit
13, level state testing circuit 14, RJ45 standard network interface
15, CPU 16, power supply circuits
2, indoor set
Embodiment
Refer to Fig. 1, the floor distributor interface circuit of the employing Double-strand transmission that the utility model provides, comprises the audio frequency difference channel 11 being electrically connected to the intercom of doorway machine, the video driver circuit 12 being electrically connected to the camera of doorway machine, the level state testing circuit 13 being electrically connected to the control button of doorway machine, RJ45 standard network interface 14, is power supply circuits 16 and the CPU15 of indoor set 2 power supplies; Audio frequency difference channel 11, video driver circuit 12 and level state testing circuit 13 are electrically connected to RJ45 standard network interface 14 respectively, and RJ45 standard network interface 14 is electrically connected to indoor set 2; Level state testing circuit 13 is electrically connected to CPU15, and CPU15 is electrically connected to power supply circuits 16, and power supply circuits 16 are electrically connected to indoor set 2 by RJ45 standard network interface 14.
Compared to prior art, the floor distributor interface circuit of the employing Double-strand transmission that the utility model provides, when CPU15 detects the signal of level state testing circuit 13, can control power supply circuits 16 is indoor set 2 power supplies, connect speech talkback and video channel simultaneously, audio frequency difference channel 11 and video driver circuit 12 are synchronizeed with power supply, guarantee stable signal transmission; Floor distributor adopts standard RJ45 interface, welding one to one the mode of connection with on-the-spot the end of a thread of prior art compares, system Installation and Debugging operation has not only been simplified in this improvement, has also significantly reduced construction working amount simultaneously, has reduced the cost of labor of building conversational system networking.
In the present embodiment, the supply power voltage of floor distributor side is greater than the minimum voltage that indoor set 2 can normally be worked under maximum power dissipation.Specifically, floor distributor side supply power voltage is 30V, and the minimum voltage that indoor set 2 can normally be worked under maximum power dissipation is 18V.
Indoor set 2 directly provides 30V Power supply to indoor set 2 by floor distributor, although the minimum voltage that indoor set 2 can normally be worked under maximum power dissipation is only 18V, but floor distributor side supply power voltage is really chosen as 30V, this is in order to guarantee still to guarantee after long Distance Transmission at voltage that indoor set 2 normally works.And the setting of boosting, work poor parallel circuit and booster circuit, can improve signal transmission quality, even if adopt the lower unshielded twisted pair of price still can guarantee signal transmission quality.
Certainly, this is only a specific embodiment of the present invention, the minimum voltage of indoor set 2 of the present invention is not limited in 18V, and the voltage of floor distributor side is only also not limited in 30V, as long as can guarantee that the voltage of floor distributor side often still can guarantee the normal work of indoor set 2 after Distance Transmission.
In the present embodiment, power supply circuits 16 comprise four-way switch circuit, and four-way switch circuit is electrically connected to four indoor sets 2 of this floor distributor place floor respectively.A floor distributor coordinates with a plurality of indoor sets 2 of same floor, and power supply is selected and controlled to power supply circuits 16 by four-way switch circuit to four indoor sets 2.
These are only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. a floor distributor interface circuit that adopts Double-strand transmission, it is characterized in that, comprise the audio frequency difference channel being electrically connected to the intercom of doorway machine, the video driver circuit being electrically connected to the camera of doorway machine, the level state testing circuit being electrically connected to the control button of doorway machine, RJ45 standard network interface, be power supply circuits and the CPU of indoor set power supply; Described audio frequency difference channel, video driver circuit and level state testing circuit are electrically connected to RJ45 standard network interface respectively, and described RJ45 standard network interface is electrically connected to indoor set; Described level state testing circuit is electrically connected to CPU, and described CPU is electrically connected to power supply circuits, and described power supply circuits are electrically connected to indoor set by RJ45 standard network interface.
2. the floor distributor interface circuit of employing Double-strand transmission according to claim 1, is characterized in that, the supply power voltage of described floor distributor side is greater than the minimum voltage that indoor set can normally be worked under maximum power dissipation.
3. audio frequency and video according to claim 2 and voltage synchronously visual talkback unit, is characterized in that, described floor distributor side supply power voltage is 30V, and the minimum voltage that described indoor set can normally be worked under maximum power dissipation is 18V.
4. audio frequency and video according to claim 1 and voltage synchronously visual talkback unit, is characterized in that, described power supply circuits comprise four-way switch circuit, and described four-way switch circuit is electrically connected to four indoor sets of this floor distributor place floor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344328.0U CN203968268U (en) | 2014-06-26 | 2014-06-26 | Adopt the floor distributor interface circuit of Double-strand transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344328.0U CN203968268U (en) | 2014-06-26 | 2014-06-26 | Adopt the floor distributor interface circuit of Double-strand transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203968268U true CN203968268U (en) | 2014-11-26 |
Family
ID=51928805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420344328.0U Expired - Lifetime CN203968268U (en) | 2014-06-26 | 2014-06-26 | Adopt the floor distributor interface circuit of Double-strand transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203968268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147870A (en) * | 2017-04-13 | 2017-09-08 | 浙江大华技术股份有限公司 | The method and talk back equipment of a kind of automatic adjusument talk back equipment power consumption |
| CN110381394A (en) * | 2019-08-27 | 2019-10-25 | 南京北路自动化系统有限责任公司 | A kind of remote two-way talkback unit |
-
2014
- 2014-06-26 CN CN201420344328.0U patent/CN203968268U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147870A (en) * | 2017-04-13 | 2017-09-08 | 浙江大华技术股份有限公司 | The method and talk back equipment of a kind of automatic adjusument talk back equipment power consumption |
| WO2018188421A1 (en) * | 2017-04-13 | 2018-10-18 | Zhejiang Dahua Technology Co., Ltd. | Intercom devices and methods for adaptively adjusting power consumption thereof |
| CN107147870B (en) * | 2017-04-13 | 2020-02-14 | 浙江大华技术股份有限公司 | Method for adaptively adjusting power consumption of intercom device and intercom device |
| US10931831B2 (en) | 2017-04-13 | 2021-02-23 | Zhejiang Dahua Technology Co., Ltd. | Intercom devices and methods for adaptively adjusting power consumption thereof |
| US11523003B2 (en) | 2017-04-13 | 2022-12-06 | Zhejiang Dahua Technology Co., Ltd. | Intercom devices and methods for adaptively adjusting power consumption thereof |
| CN110381394A (en) * | 2019-08-27 | 2019-10-25 | 南京北路自动化系统有限责任公司 | A kind of remote two-way talkback unit |
| CN110381394B (en) * | 2019-08-27 | 2024-05-17 | 南京北路智控科技股份有限公司 | Remote bidirectional intercom device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102183928B (en) | Method, device and intelligent household appliance controller for controlling running mode of household appliance | |
| CN107069953B (en) | Monitoring system based on power bus information | |
| CN104581044A (en) | Information pushing system and method based on building interphone | |
| CN203968268U (en) | Adopt the floor distributor interface circuit of Double-strand transmission | |
| CN104467907A (en) | Repeater and information transmission method and communication module hardware ID identification method of repeater | |
| CN105321332A (en) | Attribution debugging system for electricity consumption information collector and concentrator in transformer area and debugging method | |
| CN103813143A (en) | Digital visual intercom system | |
| CN104183111B (en) | The facility communication system and method for a kind of distribution network | |
| CN203968267U (en) | Adopt the indoor set interface circuit of Double-strand transmission | |
| CN204046729U (en) | Single channel CVBS and IP video coaxial cable simultaneous interpretation device | |
| CN204408368U (en) | Adopt the network equipment of low-voltage DC supply | |
| CN203734788U (en) | Coaxial-cable unshielded-twisted-pair optical-fiber hybrid-networking intercom system | |
| CN205992865U (en) | A kind of composite cable and many level Cascade H-Bridge Inverters connection system | |
| CN108767846A (en) | Double-power supply switching device | |
| CN203747920U (en) | Digital video talkback system | |
| CN201515461U (en) | Digital network dedication access server of video doorphone system | |
| CN107977333A (en) | A kind of cipher card and the method for communication | |
| CN201222744Y (en) | On-site bus isolation transmission equipment | |
| CN208506592U (en) | A kind of smart home wireless switch controller | |
| CN207625553U (en) | A kind of building intelligent talk back equipment with broadband power carrier communication apparatus | |
| CN207399402U (en) | A kind of high-tension distribution chamber of converting based on high definition optical transmitter and receiver concentrates system on duty | |
| CN204719432U (en) | A kind of hotel guest room intelligent control system | |
| CN202583739U (en) | Multi-digital-input-point expansion apparatus | |
| CN203466838U (en) | Power supply voltage stabilization device with input and output interfaces | |
| CN105159855B (en) | A kind of electric power source distribution device management method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 2303, building 1, Chongwen Park, Nanshan Zhiyuan, No. 3370 Liuxian Avenue, Fuguang community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Patentee after: SHENZHEN MICHOI SECURITY TECHNOLOGY CO.,LTD. Address before: 518000 zone 1, floor 3, building M-6, sparrow Ridge Industrial Zone, high tech Zone, Nanshan District, Shenzhen, Guangdong Patentee before: SHENZHEN MICHOI SECURITY TECHNOLOGY CO.,LTD. |
|
| CP02 | Change in the address of a patent holder |