CN110620909A - Digital Tally system - Google Patents

Digital Tally system Download PDF

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Publication number
CN110620909A
CN110620909A CN201910901537.8A CN201910901537A CN110620909A CN 110620909 A CN110620909 A CN 110620909A CN 201910901537 A CN201910901537 A CN 201910901537A CN 110620909 A CN110620909 A CN 110620909A
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CN
China
Prior art keywords
tally
host
digital
control unit
camera base
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.)
Pending
Application number
CN201910901537.8A
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Chinese (zh)
Inventor
钮春华
张叶
施剑平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
East Shanghai Media Technology Co Ltd
Original Assignee
East Shanghai Media Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by East Shanghai Media Technology Co Ltd filed Critical East Shanghai Media Technology Co Ltd
Priority to CN201910901537.8A priority Critical patent/CN110620909A/en
Publication of CN110620909A publication Critical patent/CN110620909A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/268Signal distribution or switching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/181Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources

Abstract

The invention relates to the technical field of television and movie broadcasting, in particular to a digital Tally system, which comprises: the switching station is used for providing at least one path of high-level signals; the Tally host is connected with the switching platform and used for receiving each path of high level signal and converting each path of high level signal into a corresponding command signal so as to send out different control commands; the CSU control unit is connected with a Tally host, and the control end of the CSU control unit is connected with at least four camera base stations and used for receiving control commands to respectively control the display states of the indicator lights of the at least four camera base stations. The method has the advantages that the CSU control unit is additionally arranged to control the display states of the indicating lamps of at least four camera base stations respectively in the process of virtual program production and multi-picture display, and the program mapping is realized, so that the indicating lamps of a plurality of camera base stations with the same mapping code can be simultaneously lightened, further, which signal source is used by the current switching station is prompted, operators can conveniently switch signals, and the probability of misoperation is reduced.

Description

Digital Tally system
Technical Field
The invention relates to the technical field of television and movie broadcasting, in particular to a digital Tally system.
Background
The system is applied to television walls and a prompt system for switching signals in a studio, and is commonly called a Tally lamp. In normal work, the use is quite common, and special attention is not attracted. But the important function of the Tally lamp is witnessed for prompting a signal source in the live broadcast or recorded broadcast process.
Currently, the Tally system covers the physical layer, the link layer and the application layer. The physical layer is used for controlling the UART device, the link layer is used for processing the control of the host computer to the client computer, and the application layer is the setting of the upper computer program to the whole system. However, in the prior art, there is no complete system which can facilitate the signal switching of the operator, and the conventional Tally system also has a problem that the indicator lamps of a plurality of camera base stations cannot be lighted simultaneously.
Disclosure of Invention
In response to the above-mentioned problems in the prior art, a digital Tally system is now provided.
The specific technical scheme is as follows:
a digital Tally system, comprising:
a switching station for providing at least one path of high level signal;
the Tally host is connected with the switching platform and used for receiving each path of high-level signal and converting each path of high-level signal into a corresponding command signal to send out different control commands;
and the CSU (Channel Service Unit) control Unit is connected with the Tally host, the control end of the CSU control Unit is connected with at least four camera base stations, and the CSU control Unit is used for receiving the control command to respectively control the display states of the indicator lights of the at least four camera base stations.
Preferably, the digital Tally system further comprises a plurality of first Tally lamps which are respectively connected with the Tally host, and the display state of each first Tally lamp is controlled by the Tally host so as to display LED dot matrix characters with different colors.
Preferably, every two Tally lamps of the first type are connected in a loop mode through a first multi-core interface.
Preferably, the first multi-core interface is a 4-core interface.
Preferably, the Tally system further includes a second Tally lamp connected to the CSU control unit, and the CSU control unit controls a display state of the second Tally lamp to display a working state of the camera base station.
Preferably, a second multi-core interface is arranged on the digital Tally host, and the switching platform is connected with the Tally host through the second multi-core interface.
Preferably, the second multi-core interface is a 50-core interface.
Preferably, a bus is arranged on the Tally host, and each Tally lamp of the first type is connected with the Tally host through the bus.
Preferably, the CSU control unit:
the central processing unit is connected with the Tally host through the bus, receives the control command, filters the control command and outputs a high level and a low level;
the input end of the relay is connected with the first output end of the central processing unit, and the relay is opened and closed according to the high and low levels so as to control the display states of at least four paths of indicator lights of the camera base station;
and the input end of the memory is connected with the second output end of the central processing unit.
Preferably, the digital Tally system further comprises a computer device, which is connected with the Tally host through an RS232 interface and used for setting and debugging the digital Tally system.
The technical scheme of the invention has the beneficial effects that: the digital Tally system is used for respectively controlling the display states of the indicating lamps of at least four camera base stations by adding the CSU control unit in the processes of virtual program production and multi-picture display and is realized in a program mapping mode, so that the indicating lamps of the camera base stations with the same mapping codes can be simultaneously turned on, further, which signal source is used by the current switching station is prompted, an operator can conveniently switch signals, and the probability of misoperation is reduced.
Drawings
Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and are not restrictive of the scope of the invention.
FIG. 1 is a functional block diagram of a digital Tally system of an embodiment of the present invention;
fig. 2 is a schematic block diagram of a CSU control unit of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
The invention comprises a digital Tally system, comprising:
a switching station 1 for providing at least one high level signal;
a Tally host 2 connected with the switching station 1 for receiving each path of high level signal and converting each path of high level signal into a corresponding command signal to send out different control commands;
and the CSU control unit 3 is connected with the Tally host 2, the control end of the CSU control unit is connected with at least four camera base stations 4, and the CSU control unit 3 is used for receiving control commands to respectively control the display states of the indicator lights of the at least four camera base stations 4.
Through the above technical solution of the digital Tally system, as shown in fig. 1, a second multi-core interface (not shown in the figure) is disposed on the Tally host 2, and the switching station 1 is connected to the Tally host 2 through the second multi-core interface (not shown in the figure), for example, the second multi-core interface (not shown in the figure) may be a 50-core interface. The switching station 1 is a Switcher switching station, and is connected to the Tally host 2 through a second multi-core interface (not shown in the figure), TTL5V level is used as cable, and the switching station 1 is used for sending high level as effective signals.
Further, the Tally host 2 is used for receiving TTL5V level of the switching station 1, and converting the level into a command signal after processing so as to control the whole digital Tally system. For example, the Tally host 2 may act as an access point for the entire digital Tally system; the Tally host 2 may also control whether the indicator lights of at least four camera base stations 4 are illuminated. The Tally host 2 may also issue different control commands to different states of each signal on the switching station 1 (e.g., PGM (Program), PVW (Preview)), so that all devices on the bus have corresponding control signals.
Furthermore, the CSU control unit 3 controls the indication lamps on at least four camera base stations 4 to be on or off, the digital Tally system is used for virtual program production and multi-picture display, the display states of the indication lamps of at least four camera base stations are respectively controlled by adding the CSU control unit, and the digital Tally system is realized in a program mapping mode, so that the indication lamps of a plurality of camera base stations with the same mapping code can be simultaneously turned on, and further, which signal source is being used by the current switching station is prompted, the signal switching by an operator is facilitated, and the probability of misoperation is reduced.
In the above technical solution, as a preferred embodiment, the digital Tally system further includes a plurality of first Tally lamps 5, which are respectively connected to the Tally host 2, and the display state of each first Tally lamp 5 is controlled by the Tally host 2 to display LED dot matrix characters of different colors. A plurality of first Tally lamps 5 are installed on the television wall, every two first Tally lamps 5 are connected in a loop mode through a first multi-core interface (not shown in the figure) and then connected with the bus of the Tally host 2, for example, the first multi-core interface (not shown in the figure) can be a 4-core interface, two cores in the 4 cores are powered by 5V voltage, the other two cores are RS-485 buses A and B, and the main function is to display LED dot matrix characters with different colors.
In the above technical solution, as a preferred embodiment, the digital Tally system further includes a second Tally lamp 6 connected to the CSU control unit 3, and the CSU control unit 3 controls a display state of the second Tally lamp 6 to display a working state of the camera base station 4. Whether a second type Tally lamp 6 on the camera base station 4 is lightened is controlled through the Tally host 2, wherein the Tally host 2 is connected with the camera base station 4 through a 3-core interface, and the second type Tally lamp 6 on the camera base station 4 can be lightened by conducting a 1-core interface and a 2-core interface, so that the current state of the camera is prompted. For example, the second type Tally lamps 6 can be controlled by PGM and PVW of 16 cameras, and are relatively convenient to maintain, and 16 second type Tally lamps 6 are connected to the CSU control unit 3 as a group, so that the fault range can be conveniently judged.
The control of the second type of Tally lamps 6 on the camera base station 4 is extendably not fixed to some interfaces on the switching station 1, and can be changed to any output interface control at any time, the maximum number of the camera base stations 4 is default to 16, or the number of the camera base stations 4 can be extended by adding controllers of the camera base stations 4, for example, the controllers of 3 camera base stations 4 are accessed, so that the second type of Tally lamps 6 of 48 camera base stations 4 can be controlled, and so on, and the description is omitted here.
In the above technical solution, as a preferred embodiment, a bus 20 is disposed on the Tally host 2, and each first type Tally lamp 5 is connected to the Tally host 2 through the bus 20. For example, the bus 20 may be an RS-485 bus.
In the above-described technical solution, as a preferred embodiment, the CSU control unit 3:
the central processing unit 30 is connected with the Tally host 2 through the bus 20, and the central processing unit 30 receives the control command, filters the control command and outputs a high level and a low level;
the input end of the relay 31 is connected with the first output end of the central processing unit 30, and the relay 31 is opened and closed according to high and low levels so as to control the display state of the indicator lamps of the at least four paths of camera base stations 4;
a memory 32, wherein the input end of the memory 32 is connected with the second output end of the central processing unit 30. The Memory 32 may be an EEPROM (Electrically Erasable Programmable Read-Only Memory).
Specifically, as shown in fig. 2, the CSU control unit 3 controls the indicator lights (i.e., the second type of Tally light 6) on the 4-way camera base station 4 to be turned on or off, respectively, and after the device accesses the bus, filters the communication data on the bus, and controls the display states of the indicator lights (i.e., the second type of Tally light 6) on the camera base station 4.
Further, each output interface of the CSU control unit 3 may select a 3-core output interface, and be mapped to a designated interface of the multi-core socket by the lower computer program. The 3-core output interface on the Tally host 2 is connected through a hardware circuit, namely the output interface of the Tally host 2 can also be connected with the camera base station 4, only one indicator light of the camera base station 4 can be turned on at the same time, and the CSU control unit 3 is realized through a program mapping mode, so that a plurality of camera base station indicator lights with the same mapping code can be turned on at the same time, and the function is developed particularly for virtual program production and multi-picture display.
Further, the operation principle of the CSU control unit 3, the lower computer cpu 30 employs Atmega16 with faster speed, and the CSU control unit 3 needs to have at least 8 times higher processing speed than the Tally lamp. In the circuit design, only 4 lines are currently used in consideration of 8 lines of PGM signal outputs.
Further, the program maps 4 output interfaces to port numbers of the switching station 1. For example, the communication command on the bus 20 is filtered like a mask, and if the data packet is sent to the current device, the cpu 30 controls 74ls373 to output a high level on the output pin, and controls the corresponding relay 31 to open and close, and the 3-core interface outputs a TTL level. The 3-core interface is connected with a Tally IN interface on the camera base station 4 to control the lighting and non-lighting of the indicator light of the camera base station 4.
Alternatively, the signal PVW may also be coupled to the Tally IN interface if it is desired to display three colors, red, green and yellow.
Further, by changing the logical address, the corresponding relationship between the second-type Tally lamp 6 and the signal source of the switching station 1 can be changed arbitrarily without changing the physical address. This functionality is highly desirable in everyday work for studio technicians.
Furthermore, the digital Tally system is used for respectively controlling the display states of the indicator lights of at least four camera base stations by adding the CSU control unit in the processes of virtual program production and multi-picture display, and is realized in a program mapping mode, so that the indicator lights of a plurality of camera base stations with the same mapping code can be simultaneously turned on, and further, which signal source is used by the current switching station is prompted, an operator can conveniently switch signals, and the probability of misoperation is reduced.
In the above technical solution, as a preferred embodiment, the digital Tally system further includes a computer device 7, which is connected to the Tally host 2 through an RS232 interface, and is used for setting and debugging the digital Tally system. The computer device is connected to the Tally host 2 through an RS232 interface and is only used when setting up and debugging the digital Tally system. For example, when the computer device is connected to the host, the whole management can be performed on all the Tally devices, and the debugging is convenient. All the data of the Tally client can be backed up to a certain file on the computer device 7 and can be called out at any time, so that the requirements of different manufacturers are met. And the host computer of the computer device 7 is connected with the switching station by adopting a parallel port, and 127 paths of double-color display can be realized at most.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims (10)

1. A digital Tally system, comprising:
a switching station for providing at least one path of high level signal;
the Tally host is connected with the switching platform and used for receiving each path of high-level signal and converting each path of high-level signal into a corresponding command signal to send out different control commands;
and the CSU control unit is connected with the Tally host, the control end of the CSU control unit is connected with at least four camera base stations, and the CSU control unit is used for receiving the control command to respectively control the display states of the indicator lights of the at least four camera base stations.
2. The digital Tally system of claim 1, further comprising a plurality of first Tally lamps respectively connected to the Tally host, wherein the display state of each first Tally lamp is controlled by the Tally host to display LED dot matrix characters of different colors.
3. The digital Tally system of claim 2, wherein each two Tally lights of said first type are looped through a first multi-core interface.
4. The digital Tally system of claim 3, wherein the first multi-core interface is a 4-core interface.
5. The digital Tally system of claim 1, further comprising a Tally lamp of a second type connected to the CSU control unit, wherein the CSU control unit controls a display status of the Tally lamp of the second type to display an operating status of the camera base station.
6. The digital Tally system of claim 1, wherein a second multi-core interface is disposed on the Tally host, and the switching station is connected to the Tally host through the second multi-core interface.
7. The digital Tally system of claim 6, wherein the second multi-core interface is a 50-core interface.
8. A digital Tally system according to claim 2, wherein a bus is provided on said Tally host, each of said first type of Tally lamps being connected to said Tally host via said bus.
9. The digital Tally system of claim 8, wherein the CSU control unit:
the central processing unit is connected with the Tally host through the bus, receives the control command, filters the control command and outputs a high level and a low level;
the input end of the relay is connected with the first output end of the central processing unit, and the relay is opened and closed according to the high and low levels so as to control the display states of at least four paths of indicator lights of the camera base station;
and the input end of the memory is connected with the second output end of the central processing unit.
10. The digital Tally system of claim 1, further comprising a computer device connected to said Tally host through an RS232 interface for setting up and debugging said digital Tally system.
CN201910901537.8A 2019-09-23 2019-09-23 Digital Tally system Pending CN110620909A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111050095A (en) * 2019-12-31 2020-04-21 北京科旭威尔科技股份有限公司 Push rod self-tuning algorithm for switching table
CN113473037A (en) * 2020-03-30 2021-10-01 福州市博讯网络科技有限公司 Switching table Tally signal conversion system

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111050095A (en) * 2019-12-31 2020-04-21 北京科旭威尔科技股份有限公司 Push rod self-tuning algorithm for switching table
CN111050095B (en) * 2019-12-31 2022-02-18 北京科旭威尔科技股份有限公司 Push rod self-tuning algorithm for switching table
CN113473037A (en) * 2020-03-30 2021-10-01 福州市博讯网络科技有限公司 Switching table Tally signal conversion system

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Application publication date: 20191227