CN102231639A - Main and backup line switching system for radio frequency adapter and transmitter and implementation method thereof - Google Patents

Main and backup line switching system for radio frequency adapter and transmitter and implementation method thereof Download PDF

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Publication number
CN102231639A
CN102231639A CN2011101771328A CN201110177132A CN102231639A CN 102231639 A CN102231639 A CN 102231639A CN 2011101771328 A CN2011101771328 A CN 2011101771328A CN 201110177132 A CN201110177132 A CN 201110177132A CN 102231639 A CN102231639 A CN 102231639A
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China
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transmitter
radio frequency
gprs
switch
radio
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CN2011101771328A
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Chinese (zh)
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CN102231639B (en
Inventor
赖欣
傅历建
鲍辉
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成都驰通数码系统有限公司
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Priority to CN201110177132.8A priority Critical patent/CN102231639B/en
Publication of CN102231639A publication Critical patent/CN102231639A/en
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Publication of CN102231639B publication Critical patent/CN102231639B/en

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Abstract

The invention discloses a main and backup line switching system for a radio frequency adapter and a transmitter and an implementation method thereof. Based on the characteristics of high speed and always online of the GPRS (general packet radio service) wireless communication technology and by means of a network, the switching between main and backup lines can be realized so that the equipment maintenance does not occupy the use time of users, the normal maintenance and overhaul of the equipment can be realized in the mode of switching between the main line and the backup line; a remote monitoring center monitors the parameters of each component of the system in real time through a GPRS wireless monitoring unit and sends control instructions to each component through the GPRS wireless monitoring unit so as to timely alarm and solve the problem. By the adoption of the invention, the traditionally manned patrol mode is changed, human resource is saved, and the problem that transmitters are widely distributed, mostly distributed in rural and remote areas with complicated surrounding environments and are in an unattended state can be overcome.

Description

Active and standby part of switched system of radio frequency adapter and transmitter and its implementation
Technical field
The present invention relates to the wireless transmitting system of DTMB single frequency network and single frequency network, specifically be meant active and standby part of switched system of radio frequency adapter and transmitter and its implementation.
Background technology
DTMB became the pressure standard of Chinese broadcast service terrestrial television signal along with on August 1st, 2007, will adopt the digital video in this standard to modulate intellectual property (IP) for Chinese broadcast service provides all digital television system suppliers of video transfer equipment.The single frequency network scale is increasing, the also corresponding increase of the maintenance difficulties of single frequency network transmitter and workload.The active and standby switched system of intelligent, networked transmitter will become the main flow of following radio and television emission system.
Transmitter is the important component part of DTMB single frequency network, and the reliable and stable of it is the important assurance of the normal operation of DTMB Single Frequency Network.Various places broadcasting and TV O﹠M department all must strengthen the maintenance and management to transmitter, to guarantee the safety of network.There is following shortcoming in the management to transmitter of various places broadcasting and TV at present: (1) transmitter is distributed in town and country everywhere, adopts the mode of traditional manual inspection can not adapt to the demand that network develops rapidly; (2) lack professional attendant, attendant's level is uneven.The attendant can't in time understand the running status of remote equipment and the phenomenon that breaks down, the in time fault of remover apparatus; (3) because the transmitter distribution is wide, how in the outlying district, rural area, surrounding environment complexity and unattended operation effectively just seem particularly important to monitoring of tools, monitoring, and active and standby part of handover mechanism of traditional transmitter all do not relate to active and standby part of switching of radio frequency adapter device.
Summary of the invention
The object of the present invention is to provide active and standby part of switched system of a kind of radio frequency adapter and transmitter and its implementation, utilize the characteristics of " at a high speed " and " always online " that the GPRS wireless communication technique has, gather the running parameter and the state of radio frequency adapter and transmitter in real time, and in time reliably it is controlled.
Purpose of the present invention is achieved through the following technical solutions:
Active and standby part of switched system of radio frequency adapter and transmitter, comprise identical two complete equipments, the two backups each other, every complete equipment includes radio frequency adapter and the transmitter that connects successively, the radio frequency adapter receiving optical signals also is converted into the signal of telecommunication, exports transmitter to after the adding time-delay, after the signal of telecommunication computing after transmitter will be delayed time, be sent to transmitting antenna by the radio-frequency (RF) coaxial diverter switch, this signal sent by transmitting antenna; Also comprise remote monitoring center, GPRS wireless monitor unit and switch, transmitter is gathered the operational factor of radio frequency adapter and transmitter and is transferred to switch, and switch is sent to remote monitoring center with operational factor by GPRS wireless monitor unit; Remote monitoring center sends work order by GPRS wireless monitor unit to transmitter, coaxial radio-frequency diverter switch according to the operational factor that receives, feasible main equipment or alternate device and the transmitting antenna maintenance channel status that is in normal operating conditions of coaxial radio-frequency diverter switch.Native system is that core realizes that active and standby part of radio frequency adapter and transmitter switches with radio-frequency (RF) coaxial switch and controlled AC/DC power supply, with GPRS wireless monitor unit is core, guarantee local TCP/IP management and long-range GPRS management by switch, realize the monitoring of remote monitoring center to native system, scientific management by intellectuality, digitlization, networking, guaranteeing under the safety broadcast prerequisite, strengthen the dispatch control ability, effectively increase work efficiency and managerial skills, alleviate working strength and reduce the people and be liability accident, reduction operating cost; Simultaneously, by computer management, farthest reduce the human factor influence, improve the ageing of the accuracy of reliability, data processing of transmitter work and accident treatment, remote monitoring center passes through with many stations, the multimachine room is the integrated service managerial grid of core, realizes working condition monitoring, Realtime Alerts demonstration, datamation to station devices.
Described radio frequency adapter comprises Optical Receivers, adjustable attenuator, the radio frequency delayer that connects successively, Optical Receivers receives fiber-optic signal and is converted into the signal of telecommunication, after the signal of telecommunication is decayed, filtering regulates, in the radio frequency delayer, add time-delay in adjustable attenuator; Also being included as Optical Receivers, adjustable attenuator, radio frequency delayer provides the AC/DC power supply of power supply.
Described transmitter comprises radio frequency amplification system, feed system and monitoring mainboard, the radio frequency amplification system is made of the level controller, preamplifier, final amplifier and the circulator that connect successively, wherein, level controller is connected with radio frequency adapter, and the final amplifier output signal connects the radio-frequency (RF) coaxial diverter switch by circulator and is sent to transmitting antenna; Feed system comprises that three are controlled by three power supply AC/DC1, AC/DC2, the AC/DC3 that monitors mainboard, and AC/DC1 provides power supply to level controller and preamplifier, and AC/DC2 provides power supply, AC/DC3 to provide power supply to the monitoring mainboard to final amplifier; The monitoring mainboard is gathered transmitter and the current operational factor of radio frequency adapter, and sends to local TCP/IP webmaster or GPRS wireless monitor unit by switch, carries out the operational order that GPRS wireless monitor unit issues by switch simultaneously.
Described GPRS wireless monitor unit comprises switching mainboard and GPRS DTU, the switching mainboard will be in the transmitter of normal operating conditions and the trip information of radio frequency adapter sends to GPRS DTU, and receive the operational order that GPRS DTU issues, be handed down to radio-frequency (RF) coaxial diverter switch and active and standby part of system; GPRS DTU initial landing GSM network, carry out GPRS PPP dialing then, GPRS DTU is by the IP address and the port numbers of data center, initiate TCP or UDP communication request to data center, after the response that obtains the center, GPRS DTU promptly thinks and shakes hands successfully with the center, keeps this to communicate to connect always then and exists, if communicate to connect interruption, GPRS DTU shakes hands again with data center immediately.
The implementation method of active and standby part of switched system of radio frequency adapter and transmitter may further comprise the steps:
(A) radio frequency adapter receives fiber-optic signal, and changes it into radiofrequency signal, and adds time-delay;
(B) transmitter through after amplifying, transfers to transmitting antenna by the radio-frequency (RF) coaxial diverter switch, outwards emission with the signal of step (A) output;
(C) GPRS wireless monitor unit sends to GPRS DTU with active and standby part the transmitter and the operational factor of radio frequency adapter, and the operational order of extraction GPRS DTU transmission, be handed down to the radio-frequency (RF) coaxial diverter switch, active and standby part transmitter and radio frequency adapter, simultaneously, GPRS DTU lands the GSM network, carry out GPRS PPP dialing then, GPRS DTU is by the IP address and the port numbers of data center, initiate TCP or UDP communication request to data center, after the response that obtains the center, GPRS DTU promptly thinks and shakes hands successfully with the center, keeps this to communicate to connect always then and exists, if communicate to connect interruption, GPRS DTU shakes hands again with the center immediately;
(D) instruction that issues according to the local TCP/IP webmaster that receives or remote monitoring center of GPRS monitoring unit, at first close transmitter, the radio frequency adapter of operating state, switch the operating state of coaxial trigger then, open transmitter, the radio frequency adapter of backup at last, thereby make and have only a circuit to be communicated with in main line and the spare wire, and another road disconnects with transmitting antenna.
Further, described step (D) may further comprise the steps:
(D1) during system boot, by the processing of amplifier, guarantee that main road is logical, it is disconnected to be equipped with the road, after the supervisory control system initialization finishes, is controlled transmitter and the AC/DC power supply of radio frequency adapter by monitoring program;
(D2) transmitting order to lower levels is responsible in GPRS wireless monitor unit, by the control of the monitoring mainboard specific implementation in the transmitter to transmitter and radio frequency adapter power supply, monitoring mainboard in the transmitter is exported 3 tunnel control voltage Vpc1, Vpc2 and Vpc3 respectively to the AC/DC power supply of transmitter and radio frequency adapter, Vpc1, Vpc2 and Vpc3 be low level when being 0V the AC/DC power supply open, Vpc1, Vpc2 and Vpc3 be high level when being 12V the AC/DC power supply close;
(D3) GPRS wireless monitor unit provides a signal switching controls voltage Vsc to the radio-frequency (RF) coaxial diverter switch, signal switching controls voltage Vsc is that high level is when being 12V, coaxial switch TX1 road is communicated with, the TX2 road disconnects, signal switching controls voltage Vsc is that low level is when being 0V, coaxial switch TX1 road disconnects, and the TX2 road is communicated with;
(D4) switching on and shutting down of transmitter order is as follows:
Shutdown order: turn-off the AC/DC1 power supply earlier, turn-off AC/DC2 control voltage again, per step time-delay 1 second; Power-up sequence: open the AC/DC1 power supply earlier, open AC/DC2 control voltage again, per step time-delay 1 second; Transfer sequence: close the transmitter of work earlier, switch coaxial switch again, open standby host at last.
Further, described step (D3) may further comprise the steps:
(D31) under the situation that the switching mainboard of GPRS wireless monitor unit damages, must guarantee that having only the power supply control voltage of 1 transmitter among the TX1 of radio-frequency (RF) coaxial diverter switch and the TX2 is that low level is 0V, and the radio-frequency (RF) coaxial diverter switch at this transmitter one tunnel for opening another Lu Weiguan;
(D32) CanCarry out manual switchover and automatic switchover, manual switchover has precedence over automatic switchover;
(D33) as select automaticallying switch, GPRS wireless monitor unit automaticallyes switch when TX1 or TX2 Monitoring Data are unusual.
The present invention compared with prior art has following advantage and beneficial effect:
1. the adaptive and active and standby part of switched system of transmitter of single frequency network of the present invention, the switching mode between the main preparation system makes the maintenance of equipment can not occupy user's service time, the mode by active and standby part of system switched realizes conventional maintenance, the maintenance of equipment;
2. the adaptive and active and standby part of switched system of transmitter of single frequency network of the present invention, remote monitoring center is by the parameter at each position of real-time monitoring system, GPRS wireless monitor unit, and send to each parts by GPRS wireless monitor unit and to control instruction, the timely warning and the solution of problem of implementation, changed traditional manual inspection mode, saved human resources, overcome simultaneously wireless transmitting device distribute wide and how in the outlying district, rural area, surrounding environment is complicated and unattended problem;
3. the adaptive and active and standby part of switched system of transmitter of single frequency network of the present invention, utilize the characteristics of " at a high speed " and " always online " that the GPRS wireless communication technique has, gather running parameter and state in real time, and in time realize the monitoring of remote monitoring center reliably native system with frequency net adapting appts and wireless transmitting device;
4. the adaptive and active and standby part of switched system of transmitter of single frequency network of the present invention, adopt GPRS wireless monitor unit bidirectional transmission system, remote monitoring center and home server all can oppositely be realized the time adjustment to native system, status report, switch and other monitorings, functions such as control, have excellent real-time response and disposal ability, compare with Short Message Service, because GPRS has the real-time online characteristic, system does not have time delay, system can collect simultaneously in real time, handle the various data of a plurality of/all monitoring points, need not taking turn just can a plurality of equipment of synchronous monitoring, can well satisfy the requirement of system to data collection and transmission real-time;
5. the adaptive and active and standby part of switched system of transmitter of single frequency network of the present invention can make full use of existing GSM network, and the equipment installation cost is low, utilize existing ripe GSM network, do not need debugging when system puts into operation substantially, install simple and direct, debugging is simple, and the construction period is short; Make up supervisory control system and require the data communication wide coverage, dilatation is unrestricted, and it is unrestricted to insert the place, can satisfy mountain area, small towns and trans-regional access demand; The message transmission rate height, the GPRS network transfer rate can reach 171.2kbps, and message transmission rate is about 40Kbps during practical application; The transmission capacity of system is big, monitoring central station will realize being connected in real time with each pipe network control point, because pipe network control point One's name is legion, system requirements can satisfy the needs of burst data transmission, and the GPRS technology can satisfy the needs of transmitting burst data well; Communication cost is low.Because the mode that GPRS adopts monthly payment to charge, operation maintenance cost is low; The Hot Spare of transmitter and radio frequency adapter guarantees system stability work.
Description of drawings
Fig. 1 is system configuration of the present invention and signal flow schematic diagram.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, active and standby part of switched system of radio frequency adapter of the present invention and transmitter, comprise identical two complete equipments, the two backups each other, every complete equipment includes radio frequency adapter and the transmitter that connects successively, radio frequency adapter comprises Optical Receivers, adjustable attenuator, the radio frequency delayer that connects successively, also comprises the AC/DC power supply, is used to Optical Receivers, adjustable attenuator, radio frequency delayer that power supply is provided; Transmitter comprises successively level controller, preamplifier, final amplifier, the circulator that connects, and also is included as the feed system that level controller, preamplifier, final amplifier, circulator provide power supply, and the monitoring mainboard; Also comprise GPRS wireless monitor unit, radio-frequency (RF) coaxial diverter switch, switch, remote monitoring center and transmitting antenna, switch is connected with GPRS wireless monitor unit, transmitter, remote monitoring center is connected with transmitter with switch by GPRS wireless monitor unit, and the radio-frequency (RF) coaxial switching was opened pass, GPRS wireless monitor unit and is controlled by remote monitoring center.Described radio frequency adapter is used for the light signal of input is converted to the signal of telecommunication, and adds suitable time-delay, accepts the policer operation of the supervisory control system of transmitter simultaneously; Transmitter is used for the supplemental characteristic of radio frequency adapter and the collection of operating state, and carries out the command adapted thereto of the remote monitoring center that receives by GPRS wireless monitor unit; Also comprise GPRS wireless monitor unit,, be used for the transfer of data between transmitter and the remote monitoring center as data channel; The radio-frequency (RF) coaxial diverter switch is according to the command adapted thereto switching main line of transmitter execution or the break-make of spare line; Switch is used to connect GPRS wireless monitor unit and transmitter, to the control command of transmitter transmission remote monitoring center; Remote monitoring center, comprise GPRS remote monitoring and local TCP/IP supervisory control system, by the operational factor of GPRS wireless monitor unit monitors radio frequency adapter and transmitter, and pass through GPRS wireless monitor unit to radio frequency adapter and transmitter transmission instruction; Transmitting antenna, being used for the radio-frequency (RF) coaxial diverter switch is that the main line of channel status or the signal of spare wire send.Described transmitter comprises the monitoring mainboard, is used for being responsible for gathering the transmitter parameter current, and sends to local TCP/IP webmaster or GPRS wireless monitor unit by TCP/IP, and carry out the operational order that GPRS wireless monitor unit issues by TCP/IP; The radio frequency amplification system is made of the level controller, preamplifier, final amplifier and the circulator that connect successively, is used for the signal of telecommunication processing and amplifying with radio frequency adapter, and by being sent to transmitting antenna to the radio-frequency (RF) coaxial diverter switch; Feed system comprises that three are controlled by three power supplys monitoring mainboard, and three power supplys provide power supply to level controller and preamplifier, final amplifier and monitoring mainboard respectively.Described GPRS wireless monitor unit comprises switching mainboard and GPRS DTU, described switching mainboard sends to GPRS DTU with the parameter information of active and standby transmitter and adapting appts, and, be handed down to the controllable electric power of radio frequency delayer, transmitter by the operational order that serial ports extraction GPRS DTU transmits; Described GPRS DTU lands the GSM network, carry out GPRS PPP dialing then, IP address and the parameter such as port numbers of GPRS DTU by data center, initiate TCP or UDP communication request to data center, after the response that obtains the center, GPRS DTU promptly thinks and shakes hands successfully with the center, just keeps this to communicate to connect always then and exists, if communicate to connect interruption, GPRS DTU will shake hands with the center immediately again.
After GPRS DTU powers on, at first read the running parameter of preserving among the inner FLASH, draw together the GPRS dialing parameters, the serial ports baud rate, data center IP address or the like configures in advance, switches mainboard and is responsible for the parameter information of active and standby transmitter and adapting appts is sent to GPRS DTU, and, be handed down to each equipment by the operational order that serial ports extraction GPRS DTU transmits.
GPRS DTU lands the GSM network, carry out GPRS PPP dialing then, after the dial-up success, GPRS DTU will obtain an implicit IP address that is distributed by movable random, that is to say, GPRS DTU is in the mobile Intranet, and its Intranet IP address is normally unfixed, change along with each dialing, GPRS DTU is the equipment in the mobile internal lan at this moment, realize and the communicating by letter of exterior I nternet public network that by mobile gateway this is similar to the mode that computer expert in the local area network (LAN) crosses the gateway access external network.
GPRS DTU initiatively initiates and the communicating to connect of data center, and maintenance communicates to connect existence always, because GPRS DTU is in mobile Intranet, and the IP address is unfixing, therefore, can only initiatively connect data center by GPRS DTU, and can not initiatively connect GPRS DTU by data center, this just requires data center to possess fixed public network IP address or fixed domain name, the public network IP address of data center or fixed domain name are stored in the GPRS DTU as parameter, the dial-up success so that in a single day GPRS DTU powers on just can initiatively be connected to data center.
Specifically, GPRS DTU is by the IP address of data center, if the words of the center of employing domain name, earlier go out IP address, center by the central field name analysis, reach parameters such as port numbers, initiate TCP or UDP communication request to data center, after the response that obtains the center, GPRS DTU promptly thinks and shakes hands successfully with the center, just keep this to communicate to connect always then and exist, if communicate to connect interruption, GPRS DTU will shake hands with the center immediately again, because TCP/UDP communicates to connect and sets up, and just can carry out data double-way and communicate by letter.
For GPRS DTU, as long as set up two-way communication with data center, it is just relative simple with the conversion of GPRS network packet to finish user's serial data, in case receive user's serial data, GPRS DTU just is encapsulated in serial data in the TCP/UDP bag immediately, sends to data center; Otherwise, when GPRS DTU receives the TCP/UDP bag that data center sends, therefrom take out data content, send to subscriber equipment by serial ports immediately.
The implementation method of active and standby part of switched system of radio frequency adapter and transmitter may further comprise the steps:
(A) radio frequency adapter receives fiber-optic signal, and changes it into signal of telecommunication, and adds time-delay;
(B) transmitter through after amplifying, transfers to transmitting antenna by the radio-frequency (RF) coaxial diverter switch, outwards emission with the signal of telecommunication of step (A) output;
(C) GPRS wireless monitor unit sends to GPRS DTU with the transmitter of main line and spare wire and the operational factor of radio frequency adapter, and the operational order of extraction GPRS DTU transmission, being handed down to the radio-frequency (RF) coaxial switching opens, the transmitter of main line and spare wire and radio frequency adapter, simultaneously, GPRS DTU lands the GSM network, carry out GPRS PPP dialing then, GPRS DTU is by the IP address and the port numbers parameter of data center, initiate TCP or UDP communication request to data center, after the response that obtains the center, GPRS DTU promptly thinks and shakes hands successfully with the center, keeping this to communicate to connect always then exists, if communicate to connect interruption, GPRS DTU will shake hands with the center immediately again;
(D) transmitter, the radio frequency adapter that are in closed condition are opened in the instruction that issues according to the remote monitoring center that receives of radio-frequency (RF) coaxial diverter switch, close the transmitter, the radio frequency adapter that are in channel status; Simultaneously, switch the operating state of main line and spare wire, make and have only a circuit to be communicated with in main line and the spare wire with transmitting antenna, and another road disconnection;
(D1) the monitoring mainboard is according to the AC/DC1 power supply direct current output of commands for controlling level controller, and low level is that DC normally exports, and high level is that DC output is turn-offed;
(D2) GPRS wireless monitor unit is exported 2 power supply control voltage Vpc1 and Vpc2 respectively to the TX1 and the TX2 of radio frequency coaxial trigger, Vpc1 and Vpc2 be low level when being 0V power supply open, Vpc1 and Vpc2 be high level when being 12V power supply close, the switching on and shutting down order of transmitter is as follows:
Shutdown order: turn-off the AC/DC1 power supply earlier, turn-off AC/DC2 control voltage again, per step time-delay 1 second;
Power-up sequence: open the AC/DC2 power supply earlier, open AC/DC1 control voltage again, per step time-delay 1 second;
(D3) GPRS wireless monitor unit provides a signal switching controls voltage Vsc to the radio-frequency (RF) coaxial diverter switch, signal switching controls voltage Vsc is that high level is when being 12V, coaxial switch TX1 road is logical, close on the TX2 road, signal switching controls voltage Vsc is that low level is when being 0V, close on coaxial switch TX1 road, and TX2 opens on the road;
(D31) under the situation that the switching mainboard of GPRS wireless monitor unit damages, must guarantee that having only the power supply control voltage of 1 transmitter among the TX1 of radio-frequency (RF) coaxial diverter switch and the TX2 is that low level is 0V, and the radio-frequency (RF) coaxial diverter switch at this transmitter one tunnel for opening another Lu Weiguan;
(D32) CanCarry out manual switchover and automatic switchover, manual switchover has precedence over automatic switchover;
(D33) as select automaticallying switch, GPRS wireless monitor unit automaticallyes switch when TX1 or TX2 Monitoring Data are unusual.
Native system is that core realizes that active and standby part of radio frequency adapter and transmitter switches with radio-frequency (RF) coaxial switch and controlled AC/DC power supply, with GPRS wireless monitor unit is core, guarantee local TCP/IP management and long-range GPRS management by switch, realize the monitoring of remote monitoring center to native system, scientific management by intellectuality, digitlization, networking, guaranteeing under the safety broadcast prerequisite, strengthen the dispatch control ability, effectively increase work efficiency and managerial skills, alleviate working strength and reduce the people and be liability accident, reduction operating cost; Simultaneously, by computer management, farthest reduce the human factor influence, improve the ageing of the accuracy of reliability, data processing of transmitter work and accident treatment, remote monitoring center passes through with many stations, the multimachine room is the integrated service managerial grid of core, realizes working condition monitoring, Realtime Alerts demonstration, datamation to station devices.Native system carries out real-time image data and in time carries out the monitoring of realization to transmitter that send instructions down transmitter by monitoring mainboard, remote monitoring center realizes that with GPRS wireless monitor unit and home server data pass mutually simultaneously by switch, GPRS DTU in the GPRS monitoring unit packs the data to transparent data and is connected to remote monitoring center GPRS Communications service end by the Internet net, realize the wireless transmission of data, the monitoring management system of remote monitoring center is realized the parameter of transmitter is browsed, functions such as intelligent control, remote monitoring center is realized intercommunication by network and local network management simultaneously.
As mentioned above, just can realize the present invention well.

Claims (7)

1. the active and standby part switched system of radio frequency adapter and transmitter, comprise identical two complete equipments, the two backups each other, every complete equipment includes radio frequency adapter and the transmitter that connects successively, it is characterized in that: the radio frequency adapter receiving optical signals also is converted into the signal of telecommunication, exports transmitter to after the adding time-delay, after the signal of telecommunication computing after transmitter will be delayed time, be sent to transmitting antenna by the radio-frequency (RF) coaxial diverter switch, this signal sent by transmitting antenna; Also comprise remote monitoring center, GPRS wireless monitor unit and switch, transmitter is gathered the operational factor of radio frequency adapter and transmitter and is transferred to switch, and switch is sent to remote monitoring center with operational factor by GPRS wireless monitor unit; Remote monitoring center sends work order by GPRS wireless monitor unit to transmitter, coaxial radio-frequency diverter switch according to the operational factor that receives, feasible main equipment or alternate device and the transmitting antenna maintenance channel status that is in normal operating conditions of coaxial radio-frequency diverter switch.
2. active and standby part of switched system of radio frequency adapter according to claim 1 and transmitter, it is characterized in that: described radio frequency adapter comprises Optical Receivers, adjustable attenuator, the radio frequency delayer that connects successively, Optical Receivers receives fiber-optic signal and is converted into the signal of telecommunication, after the signal of telecommunication is decayed, filtering regulates, in the radio frequency delayer, add time-delay in adjustable attenuator; Also being included as Optical Receivers, adjustable attenuator, radio frequency delayer provides the AC/DC power supply of power supply.
3. active and standby part of switched system of radio frequency adapter according to claim 1 and 2 and transmitter, it is characterized in that: described transmitter comprises radio frequency amplification system, feed system and monitoring mainboard, the radio frequency amplification system is made of the level controller, preamplifier, final amplifier and the circulator that connect successively, wherein, level controller is connected with radio frequency adapter, and the final amplifier output signal connects the radio-frequency (RF) coaxial diverter switch by circulator and is sent to transmitting antenna; Feed system comprises that three are controlled by three power supply AC/DC1, AC/DC2, the AC/DC3 that monitors mainboard, and AC/DC1 provides power supply to level controller and preamplifier, and AC/DC2 provides power supply, AC/DC3 to provide power supply to the monitoring mainboard to final amplifier; The monitoring mainboard is gathered transmitter and the current operational factor of radio frequency adapter, and sends to local TCP/IP webmaster or GPRS wireless monitor unit by switch, carries out the operational order that GPRS wireless monitor unit issues by switch simultaneously.
4. active and standby part of switched system of radio frequency adapter according to claim 3 and transmitter, it is characterized in that: described GPRS wireless monitor unit comprises switching mainboard and GPRS DTU, the switching mainboard will be in the transmitter of normal operating conditions and the trip information of radio frequency adapter sends to GPRS DTU, and receive the operational order that GPRS DTU issues, be handed down to radio-frequency (RF) coaxial diverter switch and active and standby part of system; GPRS DTU initial landing GSM network, carry out GPRS PPP dialing then, GPRS DTU is by the IP address and the port numbers of data center, initiate TCP or UDP communication request to data center, after the response that obtains the center, GPRS DTU promptly thinks and shakes hands successfully with the center, keeps this to communicate to connect always then and exists, if communicate to connect interruption, GPRS DTU shakes hands again with data center immediately.
5. according to the implementation method of active and standby part of switched system of any described radio frequency adapter and transmitter in the claim 1 to 4, it is characterized in that: may further comprise the steps:
(A) radio frequency adapter receives fiber-optic signal, and changes it into radiofrequency signal, and adds time-delay;
(B) transmitter through after amplifying, transfers to transmitting antenna by the radio-frequency (RF) coaxial diverter switch, outwards emission with the signal of step (A) output;
(C) GPRS wireless monitor unit sends to GPRS DTU with active and standby part the transmitter and the operational factor of radio frequency adapter, and the operational order of extraction GPRS DTU transmission, be handed down to the radio-frequency (RF) coaxial diverter switch, active and standby part transmitter and radio frequency adapter, simultaneously, GPRS DTU lands the GSM network, carry out GPRS PPP dialing then, GPRS DTU is by the IP address and the port numbers of data center, initiate TCP or UDP communication request to data center, after the response that obtains the center, GPRS DTU promptly thinks and shakes hands successfully with the center, keeps this to communicate to connect always then and exists, if communicate to connect interruption, GPRS DTU shakes hands again with the center immediately;
(D) instruction that issues according to the local TCP/IP webmaster that receives or remote monitoring center of GPRS monitoring unit, at first close transmitter, the radio frequency adapter of operating state, switch the operating state of coaxial trigger then, open transmitter, the radio frequency adapter of backup at last, thereby make and have only a circuit to be communicated with in main line and the spare wire, and another road disconnects with transmitting antenna.
6. the implementation method of active and standby part of switched system of radio frequency adapter according to claim 5 and transmitter, it is characterized in that: described step (D) may further comprise the steps:
(D1) during system boot, by the processing of amplifier, guarantee that main road is logical, it is disconnected to be equipped with the road, after the supervisory control system initialization finishes, is controlled transmitter and the AC/DC power supply of radio frequency adapter by monitoring program;
(D2) transmitting order to lower levels is responsible in GPRS wireless monitor unit, by the control of the monitoring mainboard specific implementation in the transmitter to transmitter and radio frequency adapter power supply, monitoring mainboard in the transmitter is exported 3 tunnel control voltage Vpc1, Vpc2 and Vpc3 respectively to the AC/DC power supply of transmitter and radio frequency adapter, Vpc1, Vpc2 and Vpc3 be low level when being 0V the AC/DC power supply open, Vpc1, Vpc2 and Vpc3 be high level when being 12V the AC/DC power supply close;
(D3) GPRS wireless monitor unit provides a signal switching controls voltage Vsc to the radio-frequency (RF) coaxial diverter switch, signal switching controls voltage Vsc is that high level is when being 12V, coaxial switch TX1 road is communicated with, the TX2 road disconnects, signal switching controls voltage Vsc is that low level is when being 0V, coaxial switch TX1 road disconnects, and the TX2 road is communicated with;
(D4) switching on and shutting down of transmitter order is as follows:
Shutdown order: turn-off the AC/DC1 power supply earlier, turn-off AC/DC2 control voltage again, per step time-delay 1 second; Power-up sequence: open the AC/DC1 power supply earlier, open AC/DC2 control voltage again, per step time-delay 1 second; Transfer sequence: close the transmitter of work earlier, switch coaxial switch again, open standby host at last.
7. the implementation method of active and standby part of switched system of radio frequency adapter according to claim 6 and transmitter, it is characterized in that: described step (D3) may further comprise the steps:
(D31) under the situation that the switching mainboard of GPRS wireless monitor unit damages, must guarantee that having only the power supply control voltage of 1 transmitter among the TX1 of radio-frequency (RF) coaxial diverter switch and the TX2 is that low level is 0V, and the radio-frequency (RF) coaxial diverter switch at this transmitter one tunnel for opening another Lu Weiguan;
(D32) can carry out manual switchover and automatic switchover, manual switchover has precedence over automatic switchover;
(D33) as select automaticallying switch, GPRS wireless monitor unit automaticallyes switch when TX1 or TX2 Monitoring Data are unusual.
CN201110177132.8A 2011-06-28 2011-06-28 Main and backup line switching system for radio frequency adapter and transmitter and implementation method thereof CN102231639B (en)

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CN103686160A (en) * 2014-01-02 2014-03-26 成都新光微波工程有限责任公司 Universal digital television emission intelligent monitoring switching system and switching method
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CN104660328A (en) * 2015-03-11 2015-05-27 深圳市新岸通讯技术有限公司 Remote management system and remote management method of optical fiber multiplexing equipment
CN105871488A (en) * 2016-04-28 2016-08-17 阿不力孜·牙生 Method and system for monitoring transmitter broadcast state and giving alarm against abnormity

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CN101990840A (en) * 2009-08-19 2011-03-30 遵义群建塑胶制品有限公司 Remote automatic control method and system of water-saving irrigation system

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CN101430313A (en) * 2008-12-10 2009-05-13 无锡彩丰科技有限公司 Water quality monitoring system based on global positioning system and universal grouping wireless service
CN201307330Y (en) * 2008-12-12 2009-09-09 吉林建筑工程学院 Intelligent community remote meter reading system based on CAN bus technology and GPRS technology
CN101990840A (en) * 2009-08-19 2011-03-30 遵义群建塑胶制品有限公司 Remote automatic control method and system of water-saving irrigation system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102780530A (en) * 2011-12-26 2012-11-14 深圳市虹远通信有限责任公司 Optical fiber repeater system
CN102780530B (en) * 2011-12-26 2015-04-08 深圳市虹远通信有限责任公司 Optical fiber repeater system
WO2014094473A1 (en) * 2012-12-19 2014-06-26 中兴通讯股份有限公司 Redundant hot backup method and system for base station radio frequency unit
CN103686160A (en) * 2014-01-02 2014-03-26 成都新光微波工程有限责任公司 Universal digital television emission intelligent monitoring switching system and switching method
CN103686160B (en) * 2014-01-02 2015-08-05 成都新光微波工程有限责任公司 Universal digital television emission intelligent monitoring switched system and changing method
CN104660328A (en) * 2015-03-11 2015-05-27 深圳市新岸通讯技术有限公司 Remote management system and remote management method of optical fiber multiplexing equipment
CN105871488A (en) * 2016-04-28 2016-08-17 阿不力孜·牙生 Method and system for monitoring transmitter broadcast state and giving alarm against abnormity

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