CN204425493U - Infrared transparent transmission system - Google Patents
Infrared transparent transmission system Download PDFInfo
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- CN204425493U CN204425493U CN201520079758.9U CN201520079758U CN204425493U CN 204425493 U CN204425493 U CN 204425493U CN 201520079758 U CN201520079758 U CN 201520079758U CN 204425493 U CN204425493 U CN 204425493U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 38
- 230000006870 function Effects 0.000 claims description 14
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- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 10
- 230000000875 corresponding effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
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Abstract
The utility model provides a kind of infrared transparent transmission system, and comprise keyset and resolve plate, described keyset is connected with described parsing plate; Described keyset, for receiving four groups infrared IR signals and the RS232 signal of video camera transmission, is transferred to described parsing plate after switching; And receive the information that described parsing plate sends, after switching, be transferred to video camera; The signal that described parsing plate sends for resolving described keyset, is transferred to video conference terminal after encoded; And the feedback control information that receiver, video conference terminal sends, after resolving, be sent to described keyset.The infrared signal of video camera is passed through background terminal by infrared transparent transmission system of the present utility model, makes background terminal control the action of video camera according to the infrared signal that camera transmissions comes; Controlled the power on/off function of background terminal by Infrared remote controller, make background terminal have hand switch machine and infrared remote control switch machine function concurrently.
Description
Technical field
The utility model relates to the technical field that camera infrared controls, and particularly relates to a kind of infrared transparent transmission system.
Background technology
At present, on market, most video camera is all configured with Infrared remote controller.Directly can control video camera by Infrared remote controller and carry out action, as the left-hand rotation, right-hand rotation, nearly Jiao of video camera, Jiao far away etc. of The Cloud Terrace.But in actual use, a lot of occasion does not wish directly to control video camera action by Infrared remote controller, but wish control to be given the background terminal connecting video camera, allow background terminal remove to receive and resolve the signal of Infrared remote controller, and then control video camera action.But, from the market, no matter be video camera or background terminal, all do not have this function.
Meanwhile, in the connecting line of video camera and background terminal, the infrared signal transmitted is TTL signal, and its transmission range is very short, about about 10 meters.That is, video camera and background terminal are merely able to realize collaborative work within closely, cannot meet the demand of actual use.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of infrared transparent transmission system, achieve the control of background terminal to video camera action, solve the problem that infrared TTL signal transmission distance between video camera and background terminal is short simultaneously, transmission range can be made to reach 200 meters.
For achieving the above object and other relevant objects, the utility model provides a kind of infrared transparent transmission system, and comprise keyset and resolve plate, described keyset is connected with described parsing plate; Described keyset, for receiving four groups infrared IR signals and the RS232 signal of video camera transmission, is transferred to described parsing plate after switching; And receive the information that described parsing plate sends, after switching, be transferred to video camera; The signal that described parsing plate sends for resolving described keyset, is transferred to video conference terminal after encoded; And the feedback control information that receiver, video conference terminal sends, after resolving, be sent to described keyset.
According to above-mentioned infrared transparent transmission system, wherein: described parsing plate comprises microcontroller, level shifting circuit, IR drive circuit, SPI turn UART circuit, memory circuit, watchdog circuit, terminal front panel I R receiving circuit, control relay circuit, power circuit and ISP programming circuit;
Described microcontroller is used for the main control unit as described parsing plate;
Be sent to described microcontroller after four groups of RS232 rs 232 serial interface signals that described level shifting circuit is used for being transmitted by No. four video cameras carry out level conversion, and the control command that described microcontroller sends is sent to No. four video cameras;
Described IR drive circuit is used for carrying out isolation drive amplification to four groups of IR signals that No. four video cameras transmit;
Described SPI turns UART circuit for realizing the communication between described microcontroller and video conference terminal;
Described memory circuit is used for the system settings data preserving described microcontroller when power down;
Described watchdog circuit is used for realizing watchdog function, prevents described microcontroller from entering deadlock state;
Described terminal front panel I R receiving circuit is used for the infrared remote-controlled signal that receiver, video conference terminal transmits;
Described control relay circuit is for controlling the power on/off function of video conference terminal;
Described power circuit is used for providing power supply;
Described ISP programming circuit is used for micro-controller program described in programming under ISP pattern.
Further, according to above-mentioned infrared transparent transmission system, wherein: described ISP programming circuit comprises programming terminal and toggle switch.
According to above-mentioned infrared transparent transmission system, wherein: described keyset comprises four standard VISCA interfaces and a double-row seat.
According to above-mentioned infrared transparent transmission system, wherein: described keyset is connected by winding displacement with described parsing plate.
As mentioned above, infrared transparent transmission system of the present utility model, has following beneficial effect:
(1) infrared signal of video camera is passed through background terminal, the infrared signal that background terminal can be come according to camera transmissions realizes the control to video camera action;
(2) controlled the power on/off function of background terminal by Infrared remote controller, make background terminal have hand switch machine and infrared remote control switch machine function concurrently.
Accompanying drawing explanation
Fig. 1 is shown as infrared transparent transmission systematic difference structural representation of the present utility model;
Fig. 2 is shown as the hardware configuration schematic diagram of parsing plate of the present utility model;
Fig. 3 is shown as the schematic diagram of parsing plate of the present utility model;
Fig. 4 is shown as the structural representation of keyset of the present utility model;
Fig. 5 is shown as the structural representation of VISCA interface in the utility model;
Fig. 6 is shown as the flow chart of infrared interrupt routine in the utility model;
Fig. 7 is shown as the flow chart of infrared decoding subprogram in the utility model;
Fig. 8 is shown as the flow chart that the short-and-medium button of the utility model detects subprogram;
Fig. 9 is shown as long button in the utility model and detects the flow chart of subprogram.
Embodiment
Below by way of specific instantiation, execution mode of the present utility model is described, those skilled in the art the content disclosed by this specification can understand other advantages of the present utility model and effect easily.The utility model can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present utility model.
It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present utility model in a schematic way, then only the assembly relevant with the utility model is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Infrared transparent transmission system of the present utility model carries out parsing coding, by Serial Port Transmission to video conference terminal to the infrared signal that video camera end transmits; Video conference terminal is according to the parsing coding received, and feedback control information gives infrared transparent transmission system, and then controls video camera by infrared transparent transmission system and carry out relevant action.
With reference to Fig. 1, infrared transparent transmission system 1 of the present utility model comprises connected keyset 12 and resolves plate 11.
Wherein, keyset 12, for receiving four groups infrared IR signals and the RS232 signal of video camera transmission, is transferred to and resolves plate 11 after switching; And receive the information of resolving plate 11 and sending, after switching, be transferred to video camera, carry out corresponding actions to control video camera.
Resolving the signal that plate 11 sends for resolving keyset 12, after encoded, being transferred to video conference terminal; And the feedback control information that receiver, video conference terminal sends, after resolving, be sent to keyset.
With reference to Fig. 2, resolve that plate comprises microcontroller, level shifting circuit, IR drive circuit, SPI turn UART circuit, memory circuit, watchdog circuit, terminal front panel I R receiving circuit, control relay circuit, power circuit and ISP programming circuit.Wherein, level shifting circuit, IR drive circuit, SPI turn UART circuit, memory circuit, watchdog circuit, terminal front panel I R receiving circuit, control relay circuit, power circuit be all connected with microprocessor with ISP programming circuit.
Particularly, microcontroller adopts the LPC1758 chip of NXP company, for the main control unit as parsing plate.
Level shifting circuit comprises two groups of MAX232 chips, be sent to microcontroller, and the control command sent by microcontroller is sent to No. four video cameras after four groups of RS232 rs 232 serial interface signals for being transmitted by No. four video cameras carry out level conversion.
IR drive circuit comprises opto-coupler chip TLP521, carries out isolation drive amplification for the four groups of IR signals transmitted No. four video cameras, strengthens Signal transmissions.
SPI turns UART circuit and comprises NXP chip SC16IS752, for realizing the communication between microcontroller LPC1758 and video conference terminal.
Memory circuit adopts AT24C02 chip, for preserving the system settings data of microcontroller when power down.
Watchdog circuit adopts SP706 to see gate circuit, for realizing watchdog function, prevents microcontroller LPC1758 from entering deadlock state.
Terminal front panel I R receiving circuit adopts HS0038B infrared receiving tube, for the infrared remote-controlled signal that receiver, video conference terminal transmits.
Control relay circuit adopts TQ201 relay, for controlling the power on/off function of video conference terminal.
Power circuit adopts AMS117-3.3V chip, for providing power supply.
ISP programming circuit comprises programming terminal J9 and toggle switch, for programming microcontroller LPC1758 program under ISP pattern.
Resolve the systematic schematic diagram of plate as shown in Figure 3.As seen from the figure, resolving plate adopts USB to carry out power supply and ISP software upgrading; LPC1758 is adopted to control system as microcontroller; Adopt the infrared signal that HS038B reception front panel is sent here; The mode adopting IO pin to interrupt, receives the IR1-IR4 signal that No. four camera transparent transmissions come; Adopt SPI to turn serial port chip SC16IS752 to communicate with terminal mainboard; Relay is adopted to carry out the power on/off function of control terminal.
With reference to Fig. 4, keyset comprises four standard VISCA interfaces and a double-row seat, for video camera being passed the four groups infrared IR signals and RS232 signal of coming, giving resolve plate through relaying transport; And by the information that parsing plate 11 sends, after switching, be transferred to video camera.Wherein, the structure of VISCA interface as shown in Figure 5.
In actual use, video camera is connected by VISCA line with keyset.Keyset is connected by winding displacement with parsing plate.Resolve plate to be connected by Serial Port Line with video conference terminal.Video conference terminal loads onto COM Debug Assistant, and arranging baud rate is 9600bps, and data bit is position, and position of rest is 1, without inspection.
Use Infrared remote controller aligned with camera, press any button.Infrared signal just by the VISCA line that video camera rear end connects, is transferred to parsing plate through keyset; Resolve plate and resolve the infrared signal generation parsing coding transmitted, be transferred to the COM Debug Assistant on video conference terminal by Serial Port Line, just can show the concrete key assignments that this Infrared remote controller is pressed.
Correspondingly, also can be sent the order of cloud platform rotation to video camera by COM Debug Assistant.First COM Debug Assistant is utilized to send cloud platform rotation order through Serial Port Line to parsing plate; Resolve plate reception order and resolve, then send control command by keyset to video camera; Video camera receives order, and performs corresponding cloud platform rotation action.
The control software design of infrared transparent transmission system of the present utility model has developed under Keil uVision4IDE the integration environment, adopts C language to realize.Software Module Design mainly comprises infrared decoding part, camera infrared code uploads part and camera control code issues part, arranges on a microcontroller.
Infrared decoding part comprises 1 road front panel infrared decoding program and 4 road camera infrared decoding programs.1 road front panel infrared decoding program resolves the IR signal that video conference terminal is sent here, is mainly used in the power on/off function realizing video conference terminal.4 road camera infrared decoding programs resolve the infrared signal that video camera end transmits, and rotate for controlling camera pan-tilt.
Camera infrared code is uploaded part and is mainly SC16IS752SPI and turns serial ports program.Because infrared transparent transmission system of the present utility model will use 5 road serial ports, and microcontroller LPC1758 only has 4 road serial ports, therefore needs to turn 1 road serial ports with SC16IS752.The main function of this part program is that camera infrared Signal transmissions after being resolved by microcontroller LPC1758 is to video conference terminal.Such as, the The Cloud Terrace left-hand rotation information after microcontroller LPC1758 resolves, needs by this program module fractional transmission to video terminal.
Camera control code issues part and is transferred to video camera for the control command issued by video conference terminal, controls video camera and carries out action.Such as video terminal is by the left-hand rotation information transmission of The Cloud Terrace to microcontroller LPC1758, and The Cloud Terrace left rotaring signal, by corresponding serial ports, is passed to corresponding video camera by keyset by microcontroller LPC1758.Video camera receives The Cloud Terrace and turns left to order, and controls The Cloud Terrace and turns left, and goes to take relevant scene.
The software algorithm of infrared decoding part is designed to the core of whole program.This part program comprises infrared interrupt routine algorithm design, infrared decoding subprogram algorithm design, shortly detects subprogram algorithm design and long button by button and detect subprogram algorithm design, and its flow process is respectively as shown in Fig. 6, Fig. 7, Fig. 8 and Fig. 9.
In sum, the infrared signal of video camera is passed through background terminal by infrared transparent transmission system of the present utility model, makes background terminal control the action of video camera according to the infrared signal that camera transmissions comes; Controlled the power on/off function of background terminal by Infrared remote controller, make background terminal have hand switch machine and infrared remote control switch machine function concurrently.So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (5)
1. an infrared transparent transmission system, is characterized in that: comprise keyset and resolve plate, described keyset is connected with described parsing plate;
Described keyset, for receiving four groups infrared IR signals and the RS232 signal of video camera transmission, is transferred to described parsing plate after switching; And receive the information that described parsing plate sends, after switching, be transferred to video camera;
The signal that described parsing plate sends for resolving described keyset, is transferred to video conference terminal after encoded; And the feedback control information that receiver, video conference terminal sends, after resolving, be sent to described keyset.
2. infrared transparent transmission system according to claim 1, is characterized in that: described parsing plate comprises microcontroller, level shifting circuit, IR drive circuit, SPI turn UART circuit, memory circuit, watchdog circuit, terminal front panel I R receiving circuit, control relay circuit, power circuit and ISP programming circuit;
Described microcontroller is used for the main control unit as described parsing plate;
Be sent to described microcontroller after four groups of RS232 rs 232 serial interface signals that described level shifting circuit is used for being transmitted by No. four video cameras carry out level conversion, and the control command that described microcontroller sends is sent to No. four video cameras;
Described IR drive circuit is used for carrying out isolation drive amplification to four groups of IR signals that No. four video cameras transmit;
Described SPI turns UART circuit for realizing the communication between described microcontroller and video conference terminal;
Described memory circuit is used for the system settings data preserving described microcontroller when power down;
Described watchdog circuit is used for realizing watchdog function, prevents described microcontroller from entering deadlock state;
Described terminal front panel I R receiving circuit is used for the infrared remote-controlled signal that receiver, video conference terminal transmits;
Described control relay circuit is for controlling the power on/off function of video conference terminal;
Described power circuit is used for providing power supply;
Described ISP programming circuit is used for micro-controller program described in programming under ISP pattern.
3. infrared transparent transmission system according to claim 2, is characterized in that: described ISP programming circuit comprises programming terminal and toggle switch.
4. infrared transparent transmission system according to claim 1, is characterized in that: described keyset comprises four standard VISCA interfaces and a double-row seat.
5. infrared transparent transmission system according to claim 1, is characterized in that: described keyset is connected by winding displacement with described parsing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079758.9U CN204425493U (en) | 2015-02-04 | 2015-02-04 | Infrared transparent transmission system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079758.9U CN204425493U (en) | 2015-02-04 | 2015-02-04 | Infrared transparent transmission system |
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| CN204425493U true CN204425493U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520079758.9U Expired - Fee Related CN204425493U (en) | 2015-02-04 | 2015-02-04 | Infrared transparent transmission system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107517053A (en) * | 2017-07-07 | 2017-12-26 | 中兴软创科技股份有限公司 | A kind of half-duplex is anti-to disturb infrared serial interface circuit certainly |
| CN111968359A (en) * | 2020-07-16 | 2020-11-20 | 福建星网智慧科技有限公司 | RS 485-based infrared signal transmission control method and system |
-
2015
- 2015-02-04 CN CN201520079758.9U patent/CN204425493U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107517053A (en) * | 2017-07-07 | 2017-12-26 | 中兴软创科技股份有限公司 | A kind of half-duplex is anti-to disturb infrared serial interface circuit certainly |
| CN111968359A (en) * | 2020-07-16 | 2020-11-20 | 福建星网智慧科技有限公司 | RS 485-based infrared signal transmission control method and system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |