CN104363525A - Addressable HFC (high-frequency current) network management system front-end controller based on broadcast television network - Google Patents
Addressable HFC (high-frequency current) network management system front-end controller based on broadcast television network Download PDFInfo
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- CN104363525A CN104363525A CN201410595453.3A CN201410595453A CN104363525A CN 104363525 A CN104363525 A CN 104363525A CN 201410595453 A CN201410595453 A CN 201410595453A CN 104363525 A CN104363525 A CN 104363525A
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- central processor
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- processor cpu
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- management system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
Abstract
The invention discloses an addressable HFC (high-frequency current) network management system front-end controller based on a broadcast television network. The addressable HFC network management system front-end controller based on the broadcast television network comprises a central processing unit CPU1, a central processing unit CPU2, a real-time clock chip, an LCD (liquid crystal display) module, an extended data inputting and outputting port, an RAM (random-access memory), an EPROM (erasable programmable read only memory) and a modem, wherein the central processing unit CPU1, the LCD display module, the real-time clock, the EPROM and the extended data inputting and outputting port are connected to the central processing unit CPU2; the RAM is connected to the central processing unit CPU1 and the central processing unit CPU2; and the extended data inputting and outputting port is also connected with the modem and a buzzer. By the principle, the special real-time clock module is used for recording data refreshing time, later searching and reading and fault positioning are facilitated, the display module is used for displaying running conditions of a system, double assurance is provided for a control terminal, the running conditions of the system can be convenient to observe, and the system can be adjusted at any time.
Description
Technical field
The present invention relates to field of network management, be specifically related to the addressable hfc plant management system front controller based on television network broadcast.
Background technology
Hfc plant management system mainly in order to control the impact of hfc plant the up channel noise on communication quality, carries out acquisition and processing to the data of multiple user terminal, and sends instruction to each terminal and control.The temperature of user's terminal, carrier level, signal level, noise, signal to noise ratio and some other control and management can be provided.Can select to be undertaken transmitting or use hfc plant and telephone wire to combine by cable television line, telephone wire according to networking situation in data transmission and transmit data.At present, along with the develop rapidly of China's cable TV (CATV) cause, traditional cable TV network changes just gradually and becomes Hybrid Fiber Coaxial (HFC).Along with the growth of amount of information, the network management problem of HFC net becomes increasingly conspicuous.Nowadays the control terminal of network management system front end can not record data refresh time, is not easy to the later stage consult and fault location.If simultaneously PC goes wrong, then cannot the ruuning situation of observing system, be unfavorable for the adjustment to system.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, addressable hfc plant management system front controller based on television network broadcast is provided, special real-time clock module is set for record data refresh time, being convenient to the later stage consults and fault location, also additionally display module is set simultaneously, this module also can as PC the ruuning situation of display system, to control terminal with dual guarantee, be more conducive to the ruuning situation of observing system and at any time system regulated, ensureing that system keeps optimum state.
For solving above-mentioned technical problem, the present invention is by the following technical solutions: based on the addressable hfc plant management system front controller of television network broadcast, comprise central processor CPU 1, central processor CPU 2, real-time timepiece chip, LCD display module, growth data input/output port, RAM, EPROM and modulator-demodulator, described central processor CPU 1, LCD display module, real-time clock, EPROM and growth data input/output port are all connected on central processor CPU 2; Described RAM connects central processor CPU 1 and central processor CPU 2 simultaneously; Described growth data input/output port also connects modulator-demodulator and buzzer; Described central processor CPU 2 also connects keyboard.
The extra LCD display module arranged in this terminal, for system provides a platform that can supply to observe.It can the current operating state of display system, and the input value of keyboard also can be system queries and provides and show intuitively.For avoiding hardware conflicts, it need select element to provide chip selection signal by sheet.Inputoutput data LED display shows whether system is receiving or sending data.After PC breaks down, the ruuning situation also by LCD display module observing system also regulates system at any time, to system with dual guarantee, ensures that system keeps optimum state.
This terminal adopts special central processor CPU 1 to carry out the communication control unit of real time communication as with PC, ensure that the real time communication of hfc plant management system and PC and the refreshing of database data.When primary processor CPU2 to select element to send after clock chip selects signal of communication by sheet, system arranges clock initial value by the P0 mouth of central processor CPU 2, starts real-time timepiece chip work, for whole system provides a real-time clock.Where necessary, can read current time by system is that system data makes time tag, upgrades system database, so that fault location.Real-time timepiece chip realizes the refresh time of record data, conveniently consults and fault location.Growth data input/output port is the major part of network management system.Master controller CPU2 realizes the communication with terminal equipment by it.System utilizes the input line of timing output line as buzzer of expansion input-output unit.When using telephone wire to transmit data, it can send various sound as required as dialing tone, ring-back tone, busy tone, alerting tone etc., also can control telephone signaling signal to determine whether allow it connect buzzer by another expansion output line.
Described LCD display module comprises interconnective LCD display and incoming level display module.Incoming level display module then shows the level value of Received signal strength intuitively.
Described central processor CPU 2 can arrange clock initial value for real-time timepiece chip for primary processor, starts real-time timepiece chip.Keyboard is for sending instruction.
Described central processor CPU 1 also connects PC, and central processor CPU 1 special disposal and PC carry out real time communication.Namely enter after CPU1 powers up and computer serial communication state.The content of instruction to memory that the person of being operating as sends by computer reads or revises (mainly address information, operating state etc.), also can operate whole system.Because system shares a RAM, therefore, any one processor must first establish its control to use RAM.When a CPU needs to communicate with system RAM, the control of RAM first must be differentiated.If another CPU communicates with RAM, then should wait for that it terminates present communications, after abdicating the control of RAM, then communicates.Any one CPU with RAM sign off after must abdicate the control of RAM.
Described real-time timepiece chip model is AMI8563.
Compared with prior art, the invention has the beneficial effects as follows:
1, the extra LCD display module arranged in this terminal, can the current operating state of display system, the input value of keyboard also can be system queries and provides and show intuitively, when the PC for display system operating state goes wrong, show by LCD display module, when both normal, also can any one be selected as required to show, give to control terminal with dual guarantee, be more conducive to the ruuning situation of observing system and at any time system regulated, ensureing that system keeps optimum state.
2, the real-time timepiece chip arranged realizes the refresh time of record data, conveniently consults and fault location.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated, and embodiments of the invention are not limited thereto.
Embodiment 1:
As shown in Figure 1, the present invention includes the addressable hfc plant management system front controller based on television network broadcast, comprise central processor CPU 1, central processor CPU 2, real-time timepiece chip, LCD display module, growth data input/output port, RAM, EPROM and modulator-demodulator, described central processor CPU 1, LCD display module, real-time clock, EPROM and growth data input/output port are all connected on central processor CPU 2; Described RAM connects central processor CPU 1 and central processor CPU 2 simultaneously; Described growth data input/output port also connects modulator-demodulator and buzzer; Described central processor CPU 2 also connects keyboard.
This control terminal comprises communication unit that central processor CPU 2 forms with PC, central processor CPU 1 forms CPU, memory cell, real-time timepiece chip, LCD display module, growth data input/output port and data modem unit, communication unit uses a special processor CPU1 and computer to carry out real time communication.Namely enter after CPU1 powers up and computer serial communication state.The content of instruction to memory that the person of being operating as sends by computer reads or revises (mainly address information, operating state etc.), also can operate whole system.Because system shares a RAM, therefore, any one processor must first establish its control to use RAM.When a CPU needs to communicate with system RAM, the control of RAM first must be differentiated.If another CPU communicates with RAM, then should wait for that it terminates present communications, after abdicating the control of RAM, then communicates.CPU is the Acquire and process that CPU2 is responsible for all data, and its main task comprises generation chip selection signal; The inputoutput data of reading and writing department of modulation and demodulation parallel circuit.Memory cell is stored by RAM and EPROM.Real-time timepiece chip realizes the refresh time of record data, conveniently consults and fault location.Growth data input/output port is the major part of network management system.Master controller CPU2 realizes the communication with terminal equipment by it.System utilizes the input line of timing output line as buzzer of expansion input-output unit.When using telephone wire to transmit data, it can send various sound as required as dialing tone, ring-back tone, busy tone, alerting tone etc., also can control telephone signaling signal to determine whether allow it connect buzzer by another expansion output line.This terminal adopts special central processor CPU 1 to carry out the communication control unit of real time communication as with PC, ensure that the real time communication of hfc plant management system and PC and the refreshing of database data.
The extra LCD display module arranged in this terminal, for system provides a platform that can supply to observe.It can the current operating state of display system, and the input value of keyboard also can be system queries and provides and show intuitively.For avoiding hardware conflicts, it need select element to provide chip selection signal by sheet.Inputoutput data LED display shows whether system is receiving or sending data.After PC breaks down, the ruuning situation also by LCD display module observing system also regulates system at any time, to system with dual guarantee, ensures that system keeps optimum state.
Embodiment 2:
The present embodiment preferred concrete structure on the basis of embodiment 1 is as follows: described LCD display module comprises interconnective LCD display and incoming level display module.Incoming level display module then shows the level value of Received signal strength intuitively.
Central processor CPU 2 can arrange clock initial value for real-time timepiece chip for primary processor, starts real-time timepiece chip.Keyboard is for sending instruction.
Described central processor CPU 1 also connects PC, and central processor CPU 1 special disposal and PC carry out real time communication.Namely enter after CPU1 powers up and computer serial communication state.The content of instruction to memory that the person of being operating as sends by computer reads or revises (mainly address information, operating state etc.), also can operate whole system.Because system shares a RAM, therefore, any one processor must first establish its control to use RAM.When a CPU needs to communicate with system RAM, the control of RAM first must be differentiated.If another CPU communicates with RAM, then should wait for that it terminates present communications, after abdicating the control of RAM, then communicates.Any one CPU with RAM sign off after must abdicate the control of RAM.
Described real-time timepiece chip model is AMI8563.
Described central processor CPU 1 and central processor CPU 2 are 51 series monolithics.
Just this invention can be realized as mentioned above.
Claims (5)
1. based on the addressable hfc plant management system front controller of television network broadcast, it is characterized in that: comprise central processor CPU 1, central processor CPU 2, real-time timepiece chip, LCD display module, growth data input/output port, RAM, EPROM and modulator-demodulator, described central processor CPU 1, LCD display module, real-time clock, EPROM and growth data input/output port are all connected on central processor CPU 2; Described RAM connects central processor CPU 1 and central processor CPU 2 simultaneously; Described growth data input/output port also connects modulator-demodulator and buzzer; Described central processor CPU 2 also connects keyboard.
2. the addressable hfc plant management system front controller based on television network broadcast according to claim 1, is characterized in that: described LCD display module comprises interconnective LCD display and incoming level display module.
3. the addressable hfc plant management system front controller based on television network broadcast according to claim 1, it is characterized in that: described central processor CPU 2 can arrange clock initial value for real-time timepiece chip for primary processor, starts real-time timepiece chip.
4. the addressable hfc plant management system front controller based on television network broadcast according to claim 1, it is characterized in that: described central processor CPU 1 also connects PC, central processor CPU 1 special disposal and PC carry out real time communication.
5. the addressable hfc plant management system front controller based on television network broadcast according to claim 1, is characterized in that: described real-time timepiece chip model is AMI8563.
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US6028933A (en) * | 1997-04-17 | 2000-02-22 | Lucent Technologies Inc. | Encrypting method and apparatus enabling multiple access for multiple services and multiple transmission modes over a broadband communication network |
US6775785B1 (en) * | 2000-09-29 | 2004-08-10 | Intel Corporation | Method and apparatus for access to resources not mapped to an autonomous subsystem in a computer based system without involvement of the main operating system |
CN1458796A (en) * | 2002-05-17 | 2003-11-26 | 武汉诚源科技有限责任公司 | Wired TV HFC broadband network radio frequency (RF) signal route management system |
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