CN204929023U - Audio frequency and video switch - Google Patents
Audio frequency and video switch Download PDFInfo
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- CN204929023U CN204929023U CN201520264660.0U CN201520264660U CN204929023U CN 204929023 U CN204929023 U CN 204929023U CN 201520264660 U CN201520264660 U CN 201520264660U CN 204929023 U CN204929023 U CN 204929023U
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- infrared receiving
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- 230000005611 electricity Effects 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 abstract description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Abstract
The utility model provides an audio frequency and video switch, includes main control chip, working power supply, export power supply, trigger circuit, infrared receiving circuit, wireless radio -frequency communication circuit, relay switching circuit, sound video input mouth, sound video output mouth. Trigger circuit is connected to main control chip, can meet dry contact triggering signal such as doorbell, can realize triggering the automatic switch -over function. The relay switching circuit adopts the magnetic latching relay that takes auxiliary contact, keep apart effectual, the low power dissipation. The butt joint with other controlgear is realized to wireless radio -frequency communication circuit, infrared receiving circuit can use arbitrary infrared remote control to switch the sign indicating number remote control to sign indicating number circuit and infrared receiving terminal include. An audio frequency and video switch can realize safety, humanized design in hotel and family's use.
Description
One, art
The utility model relates to a kind of audiovideo switcher, particularly relates to a kind of audiovideo switcher automatically switched.
Two, background technology
Audiovideo switcher is mainly used in hotel, family, the places such as market, and the existing audiovideo switcher in market can realize multichannel and enter multichannel and go out, but function singleness, need manual switchover during switching, not only cumbersome, and manual switchover button lifetime is shorter.Can not dock with other control system, also not realize the Real-time Collection of control appliance information.
Three, summary of the invention
Can not realize automatically switching and the technical problem can not docked with other system for solving existing audiovideo switcher, the utility model provides a kind of audiovideo switcher, this audiovideo switcher not only can realize infrared switching, can also achieve a butt joint with other control system, in addition, this audiovideo switcher also can realize automatic switching function.
The utility model solves the technical scheme that its technical problem adopts: circuits for triggering, infrared receiving circuit, radio frequency communication circuit, relay commutation circuit, audio frequency and video input port, audio frequency and video delivery outlet is electrically connected with main control chip, and working power provides work electricity consumption to above-mentioned modules, and out-put supply is used for powering to other equipment.Audio frequency and video input port and audio frequency and video delivery outlet switch by being with the magnetic latching relay of auxiliary contact, when circuits for triggering have triggering signal, are controlled a road of audio frequency and video input port to switch to audio frequency and video delivery outlet by main control chip.When handoff functionality completes, magnetic latching relay is in hold mode, and now relay coil is in zero-power state, energy savings.Audiovideo switcher adds input triggering signal, this triggering signal can connect the signals such as doorbell, when there being signal to trigger, then automatically a certain road audio-video signal can be switched to TV or LCD screen preferentially shows, this function can be used for when guest room or family remind owner to come to visit information automatically when there being people to come to visit.Infrared receiving circuit is directly connected with single-chip microcomputer, need first complete with remote controller to code, then control the switching of audio-video signal by remote controller.Increase the serial ports that radio frequency signal is connected to single-chip microcomputer, can dock with other control system, switch by equipment such as panels.
The beneficial effects of the utility model are, make audiovideo switcher not only can realize remote controller handoff functionality, also can dock with other system and carry out Function Extension, in addition, can arrange and TV signal is automatically switched to audio-video signal outdoors, realize safe fail safe, human oriented design; The use of magnetic latching relay achieves low-power consumption.
Accompanying drawing illustrates:
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1: circuit theory diagrams of the present utility model.
Fig. 2: power principle figure of the present utility model.
In figure, 1, main control chip, 2, working power, 3, out-put supply, 4, circuits for triggering, 5, infrared receiving circuit, 6, radio frequency communication circuit, 7, relay commutation circuit, 8, audio frequency and video input port, 9, audio frequency and video delivery outlet.
Four, embodiment
In Fig. 1, a kind of audiovideo switcher comprises main control chip 1, working power 2, out-put supply 3, circuits for triggering 4, infrared receiving circuit 5, radio frequency communication circuit 6, relay commutation circuit 7, audio frequency and video input port 8, audio frequency and video delivery outlet 9.Circuits for triggering 4 are connected to main control chip 1, can connect the dry contact triggering signals such as doorbell, to realize triggering the function that can realize automatically switching.Infrared receiving circuit 5 is directly connected with main control chip 1, comprises infrared receiving terminal and infrared to decoding circuit, realizes the control of remote controller to audiovideo switcher, any Infrared remote controller can be used to control by infrared to code; Infrared receiving terminal receives the infrared control signal of remote controller.Radio frequency communication circuit 6 is connected to main control chip 1, the rs 232 serial interface signal of main control chip 1 can be converted to radio frequency communication signal, thus realize radio frequency communication function, so as with the docking of other control appliances.Relay commutation circuit 7 one end connects audio frequency and video input port 8, the other end connects audio frequency and video delivery outlet 9, relay coil in relay commutation circuit 7 is by the port controlling of main control chip 1, audio frequency and video input port 8 can be switched to audio frequency and video delivery outlet 9 as required, switch by remote controller or triggering signal; Adopt the magnetic latching relay of band auxiliary contact in relay commutation circuit 7, this relay coil is triggered by level pulse, and after switching, state keeps, and coil power consumption is lower, and isolation effect is better.Working power 2 provides the voltage needed for work to system; Input voltage can export by out-put supply 3 as required, to connect other display equipment.
Claims (3)
1. an audiovideo switcher, comprise circuits for triggering, infrared receiving circuit, radio frequency communication circuit, relay commutation circuit, audio frequency and video input port, audio frequency and video delivery outlet, above-mentioned each module all with main control chip is electrically connected, working power provides work electricity consumption to above-mentioned modules, out-put supply is used for powering to other equipment, it is characterized in that adopting the magnetic latching relay of band auxiliary contact for switching audio frequency and video input port and audio frequency and video delivery outlet when there being triggering signal.
2. a kind of audiovideo switcher according to claim 1, is characterized in that comprising the infrared switching of remote controller and doorbell signal triggering automatic switching function.
3. a kind of audiovideo switcher according to claim 1, is characterized in that comprising radio frequency communication circuit can realize radio frequency communication function, can dock with other system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264660.0U CN204929023U (en) | 2015-04-24 | 2015-04-24 | Audio frequency and video switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264660.0U CN204929023U (en) | 2015-04-24 | 2015-04-24 | Audio frequency and video switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204929023U true CN204929023U (en) | 2015-12-30 |
Family
ID=54978117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520264660.0U Active CN204929023U (en) | 2015-04-24 | 2015-04-24 | Audio frequency and video switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204929023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983696A (en) * | 2018-09-06 | 2018-12-11 | 北京优航机电技术有限公司 | A kind of online switching detection method of PLC different type digital quantity signal and device |
-
2015
- 2015-04-24 CN CN201520264660.0U patent/CN204929023U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983696A (en) * | 2018-09-06 | 2018-12-11 | 北京优航机电技术有限公司 | A kind of online switching detection method of PLC different type digital quantity signal and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: NANJING L.JOY AUTOMATIC CONTROL EQUIPMENT Co.,Ltd. Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice |
Addressee: Liu Lingling Document name: payment instructions |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Lingling Document name: Notice of Termination of Patent Rights |
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| DD01 | Delivery of document by public notice |