CN204270200U - A kind of back board device for SDI HD video disposable plates cartoon letters - Google Patents
A kind of back board device for SDI HD video disposable plates cartoon letters Download PDFInfo
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- CN204270200U CN204270200U CN201420714327.0U CN201420714327U CN204270200U CN 204270200 U CN204270200 U CN 204270200U CN 201420714327 U CN201420714327 U CN 201420714327U CN 204270200 U CN204270200 U CN 204270200U
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Abstract
The utility model provides a kind of back board device for SDI HD video disposable plates cartoon letters, described back board device arranges 1-16 slot interface, for inserting SDI HD video process board, contact pin corresponding on the socket that this slot interface utilizes spacing to be 2.45mm and board carries out inserting mode connection, backboard have also been devised the multi-system address assignment circuit adopting divider resistance to realize, for having each slot interface allocation address during multiple described slot interface.The utility model utilizes little pinout, achieve the data communication of SDI HD video process board, Power supply, also have devised the circuit of address acquisition simultaneously, not only in product operation and maintenance process, become succinct, also make when deisgn product commercialization process unified.
Description
Technical field
The utility model relates to digital serial interface SDI (serial digital interface) HD video process field, particularly relates to a kind of back board device for SDI HD video disposable plates cartoon letters.
Background technology
SDI high-resolution video transfer system relies on the development of chip technology and the characteristic of the low delay of high-fidelity, is more and more more popularized and applies.In embody rule process, product is generally designed to standalone version and machine frame version two kinds.The equipment of machine frame version is a little application system, can insert different board and do signal transacting to HD video, and need network management interface to carry out the configuration parameter of unified management board.The equipment of machine frame plate is relative to standalone version equipment, and have video capacity large, level of integrated system is high, the feature that extensibility is good.But existing machine frame board device needs to arrange address, complicated operation to each board decibel, and board wiring is loaded down with trivial details, and the power supply of each board usually provides respectively.Therefore, the integrated management level of board is lower.
Utility model content
Therefore, for above-mentioned problem, the utility model devises a communication backplane device for HD video board, the communication of different board centralized management can be got up by this device, and decrease the manual problem that address and a lot of connectors of communication needs etc. are set, and board Power supply is also designed in this device.
In order to solve the problem, the technical solution adopted in the utility model is, a kind of back board device for digital serial interface SDI HD video disposable plates cartoon letters is provided, it is characterized in that the slot interface comprised for SDI HD video process board being inserted into backboard, contact pin corresponding on the socket that this slot interface utilizes spacing to be 2.45mm and board carries out inserting mode connection.
Wherein, described slot interface has 10 pins, is respectively, pin 1-485P: this pinout is the positive end signal of 485 communications, is linked together by 485 positive signals of this pin backboard by board;
Pin 2-485N: this pinout is the negative terminal signal of 485 communications, by this pin backboard, 485 negative signals of board is linked together;
Pin 3-ADR1: this pinout is the mailing address configuration pin 1 of board, the mailing address reading oneself for board realizes the communication of many boards;
Pin 4-ADR2: this pinout is the mailing address configuration pin 2 of board, the mailing address reading oneself for board realizes the communication of many boards;
Pin 5-NC: this pinout is empty, prevents board from mispluging wrong position and causes the power supply on backboard to hurt the protection pin of board circuit;
Pin 6-NC: this pinout is empty, prevents board from mispluging wrong position and causes the power supply on backboard to hurt the protection pin of board circuit;
Pin 7-DC12V+: this pinout be power supply just, the power supply of direct current 12V is provided to board by this pin;
Pin 8-DC12V+: this pinout be power supply just, the power supply of direct current 12V is provided to board by this pin;
Pin 9-GND: this pinout is the ground of power supply, is provided the earth signal of direct supply by this pin to board;
Pin 10-GND: this pinout is the ground of power supply, is provided the earth signal of direct supply by this pin to board.
Wherein, on described backboard, 3 divider resistances are set, for generation of 4 voltage signals, voltage is respectively VCC*1, VCC*2/3, VCC*1/3, VCC*0, will wherein 2 voltage distribution to ADR1, other 2 voltage distribution are to ADR2, adopt described 4 voltages to produce a quaternary number, altogether definable goes out in 16 to combine, thus addresses for the slot interface on backboard.
Accompanying drawing explanation
Fig. 1 is the definition of pin in a slot interface in back board device;
Fig. 2 is each interface IP address multi-system address production electric circuit with multiple slot interface;
Fig. 3 is address allocation plan when having multiple slot interface.
Embodiment
Back board device in the utility model defines the slot interface that a board is inserted into backboard, and devises the circuit of board address acquisition.The function such as communication, the address acquisition of board, the Power supply of board between board can be realized by this interface.Specific design is as follows:
As shown in Figure 1, be the definition example of a slot interface in this back board device, this slot interface, for connecting board and backboard, is connected the power supply etc. of the address of the communication between board, board, board by this interface.Contact pin corresponding on the socket that this interface utilizes spacing to be 2.45mm and board carries out inserting mode connection, is now described below:
Pin 1-485P: this pinout is the positive end signal of 485 communications, by this backboard, 485 positive signals of board is connected together;
Pin 2-485N: this pinout is the negative terminal signal of 485 communications, by this backboard, 485 negative signals of board is connected together;
Pin 3-ADR1: this pinout is the mailing address configuration pin 1 of board, reads oneself mailing address for board and realizes many boards communication;
Pin 4-ADR2: this pinout is the mailing address configuration pin 2 of board, reads oneself mailing address for board and realizes many boards communication;
Pin 5-NC: this pinout is empty, prevents the board power supply mispluged on wrong position backboard from hurting the protection pin of board circuit;
Pin 6-NC: this pinout is empty, prevents the board power supply mispluged on wrong position backboard from hurting the protection pin of board circuit;
Pin 7-DC12V+: this pinout be power supply just, the power supply of direct current 12V is provided to board by this pin;
Pin 8-DC12V+: this pinout be power supply just, the power supply of direct current 12V is provided to board by this pin;
Pin 9-GND: this pinout is the ground of power supply, is provided the earth signal of direct supply by this pin to board;
Pin 10-GND: this pinout is the ground of power supply, is provided the earth signal of direct supply by this pin to board;
By interface defined above, just can be interconnected by 485 communication protocols between board, by the power supply of definition, board obtains power supply.
Describe design circuit and the principle of board address acquisition below again.
As shown in Figure 2, on backboard, by the form of three electric resistance partial pressures, creating four kinds of voltage signals, is VCC*1, VCC*2/3, VCC*1/3, VCC*0 respectively.To above-mentioned four voltage binary representations, 11,10,01,00 can be expressed as, this creates the terminal a quarternary number.These four voltages are distributed to ADR1 and ADR2 in Fig. 1 respectively, 2 voltages are respectively distributed for ADR1 and ADR2, thus produce 16 category combinations, specifically to the slot definition on backboard as shown in Figure 3, the voltage signal of correspondence is received respectively on corresponding ADR1 and ADR2, thus different according to slot on the mainboard realized, obtain different addresses.Maximumly can support 16 slots, this board number needs enough met on machine frame type equipment is wanted.
Due to backboard being quarternary two lines, so need board can identify quaternary number.For generally all being realized by MCU of communicating on board, in the chip of present MCU, be integrated AD mostly, the AD on MCU so just can be utilized to do AD conversion to the signal on ADR1 and ADR2, thus it is next to be easy to calculate the address needed for communicating.This device utilizes little pinout, not only achieve the data communication of SDI HD video process board, Power supply, also have devised the circuit of address acquisition simultaneously, not only in product operation and maintenance process, become succinct, also making commercialization process unified when deisgn product, is a kind of back plate design device of a worth Technique Popularizing.
Although specifically show in conjunction with preferred embodiment and describe the utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (4)
1. the back board device for SDI HD video disposable plates cartoon letters, it is characterized in that the slot interface comprised for SDI HD video process board being inserted into backboard, contact pin corresponding on the socket that this slot interface utilizes spacing to be 2.45mm and board carries out inserting mode connection.
2. a kind of back board device for SDI HD video disposable plates cartoon letters as claimed in claim 1,
Wherein, described slot interface has 10 pins, is respectively,
Pin 1-485P: this pinout is the positive end signal of 485 communications, is linked together by 485 positive signals of this pin backboard by board;
Pin 2-485N: this pinout is the negative terminal signal of 485 communications, by this pin backboard, 485 negative signals of board is linked together;
Pin 3-ADR1: this pinout is the mailing address configuration pin 1 of board, the mailing address reading oneself for board realizes the communication of many boards;
Pin 4-ADR2: this pinout is the mailing address configuration pin 2 of board, the mailing address reading oneself for board realizes the communication of many boards;
Pin 5-NC: this pinout is empty, prevents board from mispluging wrong position and causes the power supply on backboard to hurt the protection pin of board circuit;
Pin 6-NC: this pinout is empty, prevents board from mispluging wrong position and causes the power supply on backboard to hurt the protection pin of board circuit;
Pin 7-DC12V+: this pinout be power supply just, the power supply of direct current 12V is provided to board by this pin;
Pin 8-DC12V+: this pinout be power supply just, the power supply of direct current 12V is provided to board by this pin;
Pin 9-GND: this pinout is the ground of power supply, is provided the earth signal of direct supply by this pin to board;
Pin 10-GND: this pinout is the ground of power supply, is provided the earth signal of direct supply by this pin to board.
3. a kind of back board device for SDI HD video disposable plates cartoon letters as claimed in claim 2, wherein, on described backboard, 3 divider resistances are set, for generation of 4 voltage signals, voltage is respectively VCC*1, VCC*2/3, VCC*1/3, VCC*0, by wherein 2 voltage distribution are to ADR1, other 2 voltage distribution, to ADR2, adopt described 4 voltages to produce a quaternary number, altogether definable goes out in 16 to combine, thus addresses for the slot interface on backboard.
4. as a kind of back board device for SDI HD video disposable plates cartoon letters of claim 1-3 as described in any one, wherein, described backboard comprises 1-16 described slot interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420714327.0U CN204270200U (en) | 2014-11-25 | 2014-11-25 | A kind of back board device for SDI HD video disposable plates cartoon letters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420714327.0U CN204270200U (en) | 2014-11-25 | 2014-11-25 | A kind of back board device for SDI HD video disposable plates cartoon letters |
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| Publication Number | Publication Date |
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| CN204270200U true CN204270200U (en) | 2015-04-15 |
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| CN201420714327.0U Active CN204270200U (en) | 2014-11-25 | 2014-11-25 | A kind of back board device for SDI HD video disposable plates cartoon letters |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569557A (en) * | 2016-11-01 | 2017-04-19 | 深圳市亿威尔信息技术股份有限公司 | Intelligent board card Bypass control system and method |
| CN109495164A (en) * | 2017-09-13 | 2019-03-19 | 凌云天博光电科技股份有限公司 | A kind of slot number recognition methods and device |
| CN110362522A (en) * | 2019-05-31 | 2019-10-22 | 中兴通讯股份有限公司 | A kind of acquisition methods of module id, apparatus and system |
-
2014
- 2014-11-25 CN CN201420714327.0U patent/CN204270200U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569557A (en) * | 2016-11-01 | 2017-04-19 | 深圳市亿威尔信息技术股份有限公司 | Intelligent board card Bypass control system and method |
| CN109495164A (en) * | 2017-09-13 | 2019-03-19 | 凌云天博光电科技股份有限公司 | A kind of slot number recognition methods and device |
| CN110362522A (en) * | 2019-05-31 | 2019-10-22 | 中兴通讯股份有限公司 | A kind of acquisition methods of module id, apparatus and system |
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