CN203645761U - Video splicing devicemixed matrix control system - Google Patents
Video splicing devicemixed matrix control system Download PDFInfo
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- CN203645761U CN203645761U CN201320804736.5U CN201320804736U CN203645761U CN 203645761 U CN203645761 U CN 203645761U CN 201320804736 U CN201320804736 U CN 201320804736U CN 203645761 U CN203645761 U CN 203645761U
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Abstract
The utility model relates to a video splicing devicemixed matrix control system. The video splicing devicemixed matrix control system comprises a signal input and output device and a CPLD control device, wherein the signal input and output device comprises a PC network port, and a first PC serial port and a second PC serial port which are connected in a parallel manner, a first system cascade serial port, and a second system cascade serial port; and the CPLD control device comprises a control module, a first logic AND gate, a second logic AND gate, and a third logic AND gate. In the technical scheme of the video splicing devicemixed matrix control system, the device modules are connected, so that complex logic function is achieved through a single chip. The video splicing devicemixed matrix control system is simple in circuit and easy to achieve in actual application. The video splicing devicemixed matrix control system which is strong in expansibility, not only supports connection with the PC serial port and the network port, but also supports connection with a system cascade serial port.
Description
Technical field
The utility model relates to a kind of video montaging device/hybrid matrix control system.
Background technology
Video montaging device/hybrid matrix is a complicated multiple input/output system, therefore must need complicated control system guarantee operation, and control system need to realize the input of combination multi-way control signals, finally realizes the output of single channel control signal.Existing technology is to adopt the separation logic gate device of 74 series to realize, and shortcoming is to need multi-plate chip could form complicated logical AND transmission system, and structure is comparatively complicated.
Utility model content
For above-mentioned technical problem, technical problem to be solved in the utility model be to provide a kind of simple in structure, be easy to realize, effectively realize video montaging device/hybrid matrix control system of the multiple signals input and output in video montaging device/hybrid matrix.
The utility model is in order to solve the problems of the technologies described above by the following technical solutions: the utility model has designed a kind of video montaging device/hybrid matrix control system, comprises signal input/output unit and CPLD control device; Wherein, signal input/output unit comprises PC network interface end, a PC serial ports end, the 2nd PC serial ports end parallel with one another, and the first system cascade serial ports end, second system cascade serial ports end; CPLD control device comprises control module, the first logical AND gate, the second logical AND gate and the 3rd logical AND gate, and wherein, the first logical AND gate and the 3rd logical AND gate are three input list output logics and door, and the second logical AND gate is dual input list output logic and door; Three inputs of the first logical AND gate are connected with the output of a PC serial ports end, the output of PC network interface end, the output of second system cascade serial ports end respectively; The output of the one PC serial ports end is connected with one of them input of the second logical AND gate simultaneously; The input of PC network interface end is connected with the output of the second logical AND gate; The output of the first logical AND gate is connected with the input of control module, the input of the first system cascade serial ports end, the input of the 2nd PC serial ports end respectively; Three inputs of the 3rd logical AND gate are connected with the output of control module, the output of the first system cascade serial ports end, the output of the 2nd PC serial ports end respectively, and the output of the 3rd logical AND gate is connected with another input of the second logical AND gate, the input of second system cascade serial ports end respectively.
As a kind of optimal technical scheme of the present utility model: described CPLD control device also comprises the 4th logical AND gate, the 4th logical AND gate is dual input list output logic and door; The output of described PC network interface end is connected with one of them input of the 4th logical AND gate simultaneously, another input of the 4th logical AND gate is connected with the output of described the 3rd logical AND gate, and the output of the 4th logical AND gate is connected with the input of a PC serial ports end.
As a kind of optimal technical scheme of the present utility model: described control module is microcontroller module.
As a kind of optimal technical scheme of the present utility model: the EPM240T1003C of the MAX II series that described CPLD control device is ALTERA company.
A kind of video montaging device/hybrid matrix control system described in the utility model adopts above technical scheme compared with prior art, there is following technique effect: video montaging device/hybrid matrix control system of the utility model design, can realize complicated logic function by monolithic chip, and circuit is simple, in practical application, be easy to realize; And this control system not only supports and being connected of PC serial ports end and network interface end, go back the connection of feasible system cascade serial ports end, autgmentability is strong.
Accompanying drawing explanation
Fig. 1 is the logical schematic of video montaging device/hybrid matrix control system of the utility model design.
Wherein, 1. the first logical AND gate, 2. the second logical AND gate, 3. the 3rd logical AND gate, 4. the 4th logical AND gate.
Embodiment
Below in conjunction with Figure of description, embodiment of the present utility model is described in further detail.
As shown in Figure 1, the utility model has designed a kind of video montaging device/hybrid matrix control system, comprises signal input/output unit and CPLD control device; Wherein, signal input/output unit comprises PC network interface end, a PC serial ports end, the 2nd PC serial ports end parallel with one another, and the first system cascade serial ports end, second system cascade serial ports end; CPLD control device comprises control module, the first logical AND gate, the second logical AND gate and the 3rd logical AND gate, and wherein, the first logical AND gate and the 3rd logical AND gate are three input list output logics and door, and the second logical AND gate is dual input list output logic and door; Three inputs of the first logical AND gate are connected with the output of a PC serial ports end, the output of PC network interface end, the output of second system cascade serial ports end respectively; The output of the one PC serial ports end is connected with one of them input of the second logical AND gate simultaneously; The input of PC network interface end is connected with the output of the second logical AND gate; The output of the first logical AND gate is connected with the input of control module, the input of the first system cascade serial ports end, the input of the 2nd PC serial ports end respectively; Three inputs of the 3rd logical AND gate are connected with the output of control module, the output of the first system cascade serial ports end, the output of the 2nd PC serial ports end respectively, and the output of the 3rd logical AND gate is connected with another input of the second logical AND gate, the input of second system cascade serial ports end respectively; Described CPLD control device also comprises the 4th logical AND gate, and the 4th logical AND gate is dual input list output logic and door; The output of described PC network interface end is connected with one of them input of the 4th logical AND gate simultaneously, another input of the 4th logical AND gate is connected with the output of described the 3rd logical AND gate, and the output of the 4th logical AND gate is connected with the input of a PC serial ports end.
The utility model has designed a kind of video montaging device/hybrid matrix control system in actual application, the EPM240T1003C of the MAX II series that described CPLD control device is ALTERA company, and wherein, control module is microcontroller module; As shown in Figure 1, the first logical AND gate receives TXD_1 signal, the TXD_2 signal of PC network interface end and the TXD_3 signal of second system cascade serial ports end of a PC serial ports end, enters microcontroller module, the first system cascade serial ports end and the 2nd PC serial ports end through logic and operation output TXD_4 signal; Microcontroller module output RXD_4 signal, the 2nd PC serial ports end output RXD_6 signal, the first system cascade serial ports end output RXD_5 signal, RXD_4 signal, RXD_6 signal and RXD_5 signal input to the 3rd logical AND gate, through logic and operation output RXD_3 signal to the second logical AND gate, the 4th logical AND gate and second system cascade serial ports end; The TXD_1 signal of the one PC serial ports end output exports the second logical AND gate to simultaneously, and TXD_1 signal and RXD_3 signal are exported RXD_7 signal to PC network interface end through the second logical AND gate; The TXD_2 signal of PC network interface end output exports the 4th logical AND gate to simultaneously, and RXD_3 signal and TXD_2 signal export RXD_1 signal to a PC serial ports end to through the 4th logical AND gate.
Based on the above course of work, video montaging device/hybrid matrix control system of the utility model design, can realize complicated logic function, and circuit is simple by monolithic chip, is easy to realize in practical application; And this control system not only supports and being connected of PC serial ports end and network interface end, go back the connection of feasible system cascade serial ports end, autgmentability is strong.
By reference to the accompanying drawings execution mode of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make a variety of changes.
Claims (3)
1. video montaging device/hybrid matrix control system, is characterized in that: comprise signal input/output unit and CPLD control device; Wherein, signal input/output unit comprises PC network interface end, a PC serial ports end, the 2nd PC serial ports end parallel with one another, and the first system cascade serial ports end, second system cascade serial ports end; CPLD control device comprises control module, the first logical AND gate, the second logical AND gate and the 3rd logical AND gate, and wherein, the first logical AND gate and the 3rd logical AND gate are three input list output logics and door, and the second logical AND gate is dual input list output logic and door; Three inputs of the first logical AND gate are connected with the output of a PC serial ports end, the output of PC network interface end, the output of second system cascade serial ports end respectively; The output of the one PC serial ports end is connected with one of them input of the second logical AND gate simultaneously; The input of PC network interface end is connected with the output of the second logical AND gate; The output of the first logical AND gate is connected with the input of control module, the input of the first system cascade serial ports end, the input of the 2nd PC serial ports end respectively; Three inputs of the 3rd logical AND gate are connected with the output of control module, the output of the first system cascade serial ports end, the output of the 2nd PC serial ports end respectively, and the output of the 3rd logical AND gate is connected with another input of the second logical AND gate, the input of second system cascade serial ports end respectively.
2. a kind of video montaging device/hybrid matrix control system according to claim 1, is characterized in that: described CPLD control device also comprises the 4th logical AND gate, and the 4th logical AND gate is dual input list output logic and door; The output of described PC network interface end is connected with one of them input of the 4th logical AND gate simultaneously, another input of the 4th logical AND gate is connected with the output of described the 3rd logical AND gate, and the output of the 4th logical AND gate is connected with the input of a PC serial ports end.
3. a kind of video montaging device/hybrid matrix control system according to claim 1, is characterized in that: described control module is microcontroller module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804736.5U CN203645761U (en) | 2013-12-10 | 2013-12-10 | Video splicing devicemixed matrix control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804736.5U CN203645761U (en) | 2013-12-10 | 2013-12-10 | Video splicing devicemixed matrix control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645761U true CN203645761U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320804736.5U Expired - Lifetime CN203645761U (en) | 2013-12-10 | 2013-12-10 | Video splicing devicemixed matrix control system |
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| Country | Link |
|---|---|
| CN (1) | CN203645761U (en) |
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2013
- 2013-12-10 CN CN201320804736.5U patent/CN203645761U/en not_active Expired - Lifetime
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