CN101277157A - Monitoring circuit of microwave communication system outdoor unit - Google Patents
Monitoring circuit of microwave communication system outdoor unit Download PDFInfo
- Publication number
- CN101277157A CN101277157A CNA2008100357263A CN200810035726A CN101277157A CN 101277157 A CN101277157 A CN 101277157A CN A2008100357263 A CNA2008100357263 A CN A2008100357263A CN 200810035726 A CN200810035726 A CN 200810035726A CN 101277157 A CN101277157 A CN 101277157A
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Abstract
The invention provides a monitor circuit of outdoor unit in microwave communication system. A crystal oscillator frequency generating circuit has three output channels, one channel transmits to a transmitting channel phase-locked loop and a receiving channel phase-locked loop; other two channels transmit to a signal modulation circuit and a microprocessor; the microprocessor has an simulator interface, and has other interface for processing hand-control signal of jumper socket, local monitoring debugging signal, remote monitoring outdoor unit receiving signal, transmitting/receiving channel phase-locked loop alarm signal, transmitting/receiving channel power detecting signal, temperature sensor signal; the microprocessor transmits temperature compensation control signal of transmitting power, transmitting/receiving channel phase-locked loop control signal, transmitting power control signal and outdoor unit switch signal; a figure model conversion circuit feeds back receiving signal power back to voltage for outputting to interface. The monitor circuit has advantages that the monitor circuit completes real-time monitoring for outdoor unit RF indicator, realizes temperature compensation to various parameters, and indoor unit can collocate and manage outdoor unit according with need.
Description
Technical field
The present invention relates to a kind of supervisory circuit, particularly a kind of supervisory circuit of microwave communication system outdoor unit.
Background technology
Outdoor unit (ODU) should be communicated by letter with indoor unit (IDU), carries out point-to-point radio communication with another outdoor unit (ODU) again, to realize two communications between the indoor unit.Supervisory circuit should be monitored the operating state of outdoor unit (ODU) in real time, communicate by letter with indoor unit (IDU) again, make indoor unit (IDU) can not only in time understand the parameters of outdoor unit (ODU), can be configured and control outdoor unit (ODU) again.Simultaneously,, must have a monitor passage again, make the monitor on the PC can directly monitor outdoor unit (ODU) for making things convenient for engineering staff's field adjustable.
Summary of the invention
Technical problem of the present invention is that a kind of real-time monitoring outdoor unit will be provided, the trip temperature of going forward side by side compensation, the supervisory circuit of indoor unit microwave communication system outdoor unit that outdoor unit is configured simultaneously.
In order to solve above technical problem, the invention provides a kind of supervisory circuit of microwave communication system outdoor unit, a crystal oscillator frequency generation circuit divides three tunnel outputs, and one the road delivers to sendaisle phase-locked loop and receive path phase-locked loop; In addition two the tunnel deliver to signal modulation circuit and microprocessor CPU respectively through buffer circuit; Microprocessor CPU has an emulator interface, and has interface to handle manual signal, local monitor debug signal, remote monitoring outdoor unit signal of communication, transceiver channel phase-locked loop frequency control signal, transceiver channel power detection signal, transceiver channel phase-locked loop alarm signal, the temperature sensor signal of wire jumper socket in addition; Function of temperature compensation control signal, transceiver channel pll control signal, transmitting power control signal and the outdoor unit transmission channel switching signal of microprocessor CPU output transmitting power; D/A converting circuit feeds back into voltage with received signal power and outputs on the interface.
Described buffer circuit is with crystal oscillator frequency, and one the tunnel delivers to microprocessor CPU through a reverse driven, and low pass filter is delivered to through another rp-drive in another road.
Described signal modulation circuit is with after sending out the primary signal modulation of message through the remote monitoring outdoor unit of crystal oscillator frequency signal behind the low pass filter and microprocessor CPU output, again through a bidirectional low-pass filter filtering, deliver to interface, send to indoor unit by the cable between indoor unit and the indoor unit.
Described signal demodulating circuit is that the remote monitoring signal that indoor unit sends to outdoor unit is received outdoor unit inside from the cable between indoor unit and the indoor unit, oppositely by a bidirectional low-pass filter filtering, behind a band pass filter and demodulator circuit, deliver to microprocessor CPU more then.
Superior effect of the present invention is:
1) supervisory circuit of the present invention has been finished the real-time monitoring to outdoor unit (ODU) radio-frequency (RF) index, realization is to the temperature-compensating of parameters, the interface of indoor unit (IDU) monitoring outdoor unit (ODU) is provided simultaneously, make indoor unit (IDU) be configured, to manage outdoor unit (ODU) as required, and some important real-time parameter changed into voltage, measure to make things convenient for engineering staff and maintenance personal;
2) succinct, the good reliability of supervisory circuit of the present invention, cost are low;
3) crystal oscillator output processing circuit of the present invention makes microprocessor CPU, frequency synthesizer and the remote monitoring modulation circuit of communicating by letter, the shared crystal oscillator frequency of three, and do not disturb each other;
4) use special-purpose remote monitoring passage, be used for indoor unit (IDU) outdoor unit (ODU) is monitored, make the indoor unit (IDU) can multiplexing local oscillation signal cable transmission pilot signal.
Description of drawings
Fig. 1 is a basic circuit diagram of the present invention;
The number in the figure explanation
The 1-low noise amplifier; The 2-reverse driven;
The 3-rp-drive; The 4-voltage amplifier;
The 5-low pass filter; The 6-signal modulation circuit;
The 7-low pass filter; The 8-band pass filter;
The 9-demodulator circuit; The 10-amplifier;
The 11-D/A converting circuit; 12-voltage amplifier A;
13-voltage amplifier B; 14-voltage amplifier C;
15-voltage amplifier D; The 16-microprocessor CPU.
Embodiment
See also shown in the accompanying drawing, the invention will be further described.
As shown in Figure 1, the invention provides a kind of supervisory circuit of microwave communication system outdoor unit, a crystal oscillator frequency generation circuit divides three tunnel outputs, and one the tunnel delivers to sendaisle phase-locked loop and receive path phase-locked loop after low noise amplifier 1 amplifies; In addition two the tunnel deliver to signal modulation circuit 6 and microprocessor 16 respectively through buffer circuit; Microprocessor 16 have that an emulator interface P1 is used to transmit and simulator between communication bus signal S19, receive manual signal, remote monitoring outdoor unit signal of communication S5, transceiver channel phase-locked loop alarm signal, transceiver channel power detection signal S22, temperature sensor signal S14 and the power-on reset signal S9 of wire jumper socket P2; Function of temperature compensation control signal, transceiver channel phase-locked loop frequency control signal, transmitting power control signal S13 and the outdoor unit transmission channel switching signal S8 of microprocessor 16 output transmitting powers; D/A converting circuit feeds back into voltage with received signal power and outputs on the interface.S21 is local monitor communication sending and receiving signal buss in addition, and S23 is local debug communications sending and receiving signal bus.
Described buffer circuit is with crystal oscillator frequency, and one the tunnel delivers to microprocessor 16 through a reverse driven 2, and low pass filter 5 is delivered to through another rp-drive 3 in another road.
Described signal modulation circuit 6 is with after sending out the primary signal S4 modulation of message through the remote monitoring outdoor unit of crystal oscillator frequency signal behind the low pass filter 5 and microprocessor 16 outputs, again through bidirectional low-pass filter 7 filtering, deliver to interface, send to indoor unit by the cable between indoor unit and the indoor unit.
Described signal demodulating circuit 9 is that the remote monitoring signal that indoor unit sends to outdoor unit is received outdoor unit inside from the cable between indoor unit and the indoor unit, oppositely by bidirectional low-pass filter 7 filtering, behind a band pass filter 8 and demodulator circuit 9, deliver to microprocessor 16 more then.
Wherein: the signal instruction of Fig. 1 is,
S1-microprocessor input frequency signal;
S2-phase-locked loop input frequency signal;
S3-remote monitoring outdoor unit is sent out the message modulation signal;
The message primary signal is sent out in a unit, S4-remote monitoring chamber;
S5-remote monitoring outdoor unit is received the message demodulation signal;
The message modulation signal is received in the S6-remote monitoring;
Many different frequency signals common transmission line of S7-;
S8-outdoor unit switching signal;
The S9-power-on reset signal;
S10-serial peripheral interface bus signal and phase-locked loop alarm;
S11-sends out passage phase-locked loop control bus and alarm signal;
S12-receives passage phase-locked loop control bus and alarm signal;
S13-transmitting power control bus;
S14-temperature sampling signal;
S15-received signal power level 1;
S16-received signal power level 2;
S17-transmission channel IF input power level;
S18-transmission channel IF input power level;
S19-processor simulation debugging interface;
The manual control item input signal of S20-;
S21-local monitor transceiver communication bus;
S22-received signal power feedback voltage;
The local debugging interface transceiver communication of S23-bus.
Wherein: each interface specification of Fig. 1 is:
The P1-emulator interface;
P2-wire jumper socket;
P3-local monitor interface and debugging interface;
P4-received signal power feedback interface;
P5-transmission channel phase-locked loop incoming frequency;
P6-receive path phase-locked loop incoming frequency;
Control interfaces such as P7-transmission channel frequency, power;
Control interfaces such as P8-receive path frequency, power.
The course of work of the present invention is:
1) during operate as normal, declines any jumper cap on the P2 interface.If need to debug outdoor unit (ODU), then plug a wherein specific jumper cap with local monitoring terminals.During processor reset, check the situation of this wire jumper earlier,, then receive monitoring message, transmit whole sending and receiving message of telecommunication simultaneously to the local monitor interface from indoor unit (IDU) if there is not wire jumper; If the wire jumper state then receives whole sending and receiving message from the message of local monitor mouth to the telecommunication mouth that transmit the local monitor interface from;
2) determine after the communication interface, respond corresponding monitor command, according to the parameters of the radio frequency parameter of local allocation list and remote profile configuration outdoor unit (ODU), facility information, the analog-digital conversion data table of comparisons, temperature compensation table, power correction;
3) running is: real-time collecting temperature value S14, the controlled temperature compensation meter is determined every temperature compensation value.With transmitting power control bus control radio frequency path digital pad, with the effect of the temperature-compensating that reaches transmitting power.Preserve the received power temperature compensation value simultaneously.
Gather input signal power S15, S16 in real time, get its mean value, search the received power table of comparisons, add temperature compensation value, determine the input signal power level, the control analog-digital chip is from P4 interface output correspondent voltage.
Gather in real time and send out passage intermediate frequency input signal S17, judge whether to surpass alarming threshold, and inquiry is provided.
Gather the magnitude of voltage of sending out passage intermediate frequency output signal S18 in real time, search the transmitting power table of comparisons, determine power output, judge whether to reach certain alarming threshold.Produce or remove corresponding alarm, inquiry is provided.
Real-time inspection phase-locked loop alarm signal, in time alarm.
Receive in real time and the execution monitor command, as power, frequency, open and close transmission channel are set, return institute's query parameter values etc.
Claims (4)
1, a kind of supervisory circuit of microwave communication system outdoor unit is characterized in that:
One crystal oscillator frequency generation circuit divides three tunnel outputs, and one the road delivers to sendaisle phase-locked loop and receive path phase-locked loop; In addition two the tunnel deliver to signal modulation circuit and microprocessor CPU respectively through buffer circuit; Microprocessor CPU has an emulator interface, and has interface to handle manual signal, local monitor debug signal, remote monitoring outdoor unit signal of communication, transceiver channel phase-locked loop frequency control signal, transceiver channel power detection signal, transceiver channel phase-locked loop alarm signal, the temperature sensor signal of wire jumper socket in addition; Function of temperature compensation control signal, transceiver channel pll control signal, transmitting power control signal and the outdoor unit transmission channel switching signal of microprocessor CPU output transmitting power; D/A converting circuit feeds back into voltage with received signal power and outputs on the interface.
2, by the supervisory circuit of the described a kind of microwave communication system outdoor unit of claim 1, it is characterized in that:
Described buffer circuit is with crystal oscillator frequency, and one the tunnel delivers to microprocessor CPU through a reverse driven, and another Lu Jingyi rp-drive is delivered to low pass filter.
3, by the supervisory circuit of the described a kind of microwave communication system outdoor unit of claim 1, it is characterized in that:
Described signal modulation circuit is with after sending out the primary signal modulation of message through the remote monitoring outdoor unit of crystal oscillator frequency signal behind the low pass filter and microprocessor CPU output, again through a bidirectional low-pass filter filtering, deliver to interface, send to indoor unit by the cable between indoor unit and the indoor unit.
4, by the supervisory circuit of the described a kind of microwave communication system outdoor unit of claim 1, it is characterized in that:
Described signal demodulating circuit is that the remote monitoring signal that indoor unit sends to outdoor unit is received outdoor unit inside from the cable between indoor unit and the indoor unit, oppositely by a bidirectional low-pass filter filtering, behind a band pass filter and demodulator circuit, deliver to microprocessor CPU more then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100357263A CN101277157A (en) | 2008-04-08 | 2008-04-08 | Monitoring circuit of microwave communication system outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100357263A CN101277157A (en) | 2008-04-08 | 2008-04-08 | Monitoring circuit of microwave communication system outdoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101277157A true CN101277157A (en) | 2008-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100357263A Pending CN101277157A (en) | 2008-04-08 | 2008-04-08 | Monitoring circuit of microwave communication system outdoor unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111654293A (en) * | 2020-07-01 | 2020-09-11 | 母国标 | Intermediate frequency signal processing device and communication system |
| CN113264084A (en) * | 2021-05-27 | 2021-08-17 | 海宁德科隆电子有限公司 | Track axle counting sensor |
| CN115189797A (en) * | 2022-09-09 | 2022-10-14 | 中国科学院国家授时中心 | Time synchronization method |
-
2008
- 2008-04-08 CN CNA2008100357263A patent/CN101277157A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111654293A (en) * | 2020-07-01 | 2020-09-11 | 母国标 | Intermediate frequency signal processing device and communication system |
| CN111654293B (en) * | 2020-07-01 | 2024-05-03 | 母国标 | Intermediate frequency signal processing device and communication system |
| CN113264084A (en) * | 2021-05-27 | 2021-08-17 | 海宁德科隆电子有限公司 | Track axle counting sensor |
| CN115189797A (en) * | 2022-09-09 | 2022-10-14 | 中国科学院国家授时中心 | Time synchronization method |
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| PB01 | Publication | ||
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20081001 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |