CN101291185A - Monitoring circuit for microwave outdoor unit - Google Patents
Monitoring circuit for microwave outdoor unit Download PDFInfo
- Publication number
- CN101291185A CN101291185A CNA2008100390774A CN200810039077A CN101291185A CN 101291185 A CN101291185 A CN 101291185A CN A2008100390774 A CNA2008100390774 A CN A2008100390774A CN 200810039077 A CN200810039077 A CN 200810039077A CN 101291185 A CN101291185 A CN 101291185A
- Authority
- CN
- China
- Prior art keywords
- outdoor unit
- frequency
- mcu chip
- power
- radio
- 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
Links
Images
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention relates to a monitoring circuit for a microwave outdoor unit. The monitoring circuit is provided with an MCU chip which is used to acquire frequency signals and power signals of a radio-frequency transmitting signal port and a radio-frequency receiving signal port, the MCU chip outputs temperature compensation control and power attenuation control after processing the signals and outputs power level indication; the MCU chip is also communicated with a signal modulating and demodulating module which is communicated with an indoor unit IDU through a power supply module; and the MCU chip is connected with a PC monitor through a RS232 port. The monitoring circuit has the advantage that the compensation to temperature and frequency is performed according to various parameters obtained by monitoring through the real-time monitoring to radio-frequency indexes of the outdoor unit, which solves the problem that the influence of different environments and temperatures on various t radio-frequency indexes of the outdoor unit, so that the outdoor unit can always work in a more stable state; moreover, the monitoring circuit has the characteristics of concise circuit, strong reliability and low cost.
Description
Technical field
The present invention relates to a kind of supervisory circuit, particularly a kind of supervisory circuit of microwave outdoor unit is monitored every function of outdoor unit ODU in real time by embedded control chip MCU.
Background technology
Outdoor unit ODU should communicate by letter with indoor unit IDU, and the outdoor unit ODU with other carries out point-to-point radio communication again, to realize two communications between the indoor unit.Monitoring module needs every operating state of monitoring outdoor unit ODU in real time, can carry out real-time data communication with indoor unit IDU simultaneously.For making things convenient for engineering staff's field adjustable, must have an extra monitors M onitor passage again, to guarantee in particular cases at some, can use Monitor on the external PC also can reach the purpose of direct monitoring outdoor unit ODU, and, be that indoor unit IDU or monitors M onitor must have the ability that at any time outdoor unit ODU is configured and controls
Summary of the invention
Technical problem of the present invention is to provide that a kind of circuit is succinct, the supervisory circuit of the microwave outdoor unit of good reliability.
In order to solve above technical problem, the invention provides a kind of supervisory circuit of microwave outdoor unit, this supervisory circuit is provided with a MCU chip, gather radio frequency post a letter, collect mail frequency, the power signal of port, control of output temperature compensation after treatment and power attenuation control, and output power levels indication; The MCU chip also with a modulating and demodulating signal module communication, the modulating and demodulating signal module is by power module and indoor unit IDU communication, the MCU chip is connected with the PC monitor by the RS232 port.
Described function of temperature compensation control and power attenuation control according to temperature frequency table compensating frequency error, according to the current power level of gathering, determine that the transmitted power level value that current outdoor unit ODU need reach compensates or control decay.
Described MCU chip provides signal source by a crystal oscillator, and the crystal oscillator signal source also offers the modulating and demodulating signal module.
Superior effect of the present invention is: the present invention has realized by the real-time monitoring to outdoor unit ODU radio-frequency (RF) index, can carry out the compensation of temperature, frequency according to the resulting parameters of monitoring, and reach in a rapid adjustment radio frequency power output and intermediate frequency received power to the comparatively desirable scope with this, thereby solved the influence of different environment and temperature, made it can always work in one comparatively in the stable status the every radio-frequency (RF) index of outdoor unit ODU.This circuit provides one group based on indoor unit IDU monitoring outdoor unit ODU's in addition, PC monitors M onitor is the auxiliary communication environment that improves, the user can be as required, by indoor unit IDU outdoor unit ODU is configured, manages and monitors, and can change into voltage output by the real-time parameter that some are important, to make things convenient for engineering staff and maintenance personal to measure, simultaneously, the present invention has that circuit is succinct, good reliability, characteristics that cost is low.
Description of drawings
Fig. 1 is a functional-block diagram of the present invention;
Fig. 2 is the another kind of form of principle of the invention block diagram;
The number in the figure explanation
1-MCU chip 2-crystal oscillator;
3-modulation module; 4-indoor unit IDU;
5-PC machine monitor 6-power module.
Embodiment
See also shown in the accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, the invention provides a kind of supervisory circuit of microwave outdoor unit, this supervisory circuit is provided with a MCU chip 1, gathers radio frequency post a letter, collect mail frequency, the power signal of port, control of output temperature compensation after treatment and power attenuation control, and output power levels indication; MCU chip 1 also with a modulating and demodulating signal module 3 communications, modulating and demodulating signal module 3 is by power module 6 and indoor unit IDU4 communication, MCU chip 1 is connected with PC monitor 5 by the RS232 port, realizes setting and monitoring to the parameters of outdoor unit ODU on PC.
Described function of temperature compensation control and power attenuation control according to temperature frequency table compensating frequency error, according to the current power level of gathering, determine that the transmitted power level value that current outdoor unit ODU need reach compensates or control decay.
Described MCU chip 1 provides signal source by a crystal oscillator 2, and crystal oscillator 2 signal sources also offer modulating and demodulating signal module 3, accomplishes that each other zero disturbs.
The present invention uses Motorola MC9S12 family chip as MCU chip 1, integrated multiple function device and interfaces such as Flash, EEPROM, RAM, ADC, SCI and SPI interface in this family chip, not only simplified circuit greatly, save cost, and improved reliability of operation and stability.
The monitor procedure of outdoor unit ODU:
Under the general work environment, gating switch is always beaten the end to X2, promptly allows and indoor unit IDU4 communication, and PC monitors M onitor5 end then can only receive message, and does not have the ability of control.When some special circumstances occurring, when promptly needing to break away from the monitoring of indoor unit IDU4 and using PC monitors M onitor5 to carry out local monitor outdoor unit ODU state, then only need make gating switch be chosen in the X1 end.When MCU chip 1 electrifies again or resets, all can detect strobe case, and will change the monitor command of definite communication direction reception according to level from that road;
Be provided with: after outdoor unit ODU determines communication interface, begin to respond the monitor command of relevant device, dispose every radio frequency parameter, facility information, the analog-digital conversion data table of comparisons, the temperature compensation table of outdoor unit OUD, parameters of power correction etc. according to local radio frequency parameter table and remote profile;
Compensation: the multi-point temp value of MCU chip 1 real-time acquisition controlling plate and rf board, and calculate a comparatively reasonably real time temperature, by temperature compensation table, determine every temperature compensation value: according to the current frequency of gathering, the controlled temperature frequency meter is determined the frequency compensation value under this temperature.According to the power level of current collection, determine the transmitting power target level value that current outdoor unit ODU need reach;
The control transmitting power: MCU chip 1 according to transmitting power target level value by 4 groups of radio frequency path digital pads of control (as the AT1 among Fig. 2～AT4) come rapid adjustment also to stablize the real output value of outdoor unit ODU.Thereby guaranteed that under the situation of varying environment, temperature and frequency its power output can remain on a stable operating state all the time;
Control intermediate-freuqncy signal power: gather intermediate frequency received power level signal in real time, get its mean value, received power table in the corresponding MCU chip 1, calculate in conjunction with temperature and frequency compensation value, final determine intermediate frequency received power target level value, MCU chip 1 according to this value and by 4 groups of radio frequency path digital pads of control (as the AT1 among Fig. 2～AT4) come rapid adjustment also to stablize the actual intermediate frequency received power value of outdoor unit ODU;
Adjust: gather each road radio frequency, intermediate-freuqncy signal in real time, the go forward side by side compensation of trip temperature, frequency of the wattmeter that contrast is relevant is calculated, MCU chip 1 judges as requested whether current outdoor unit ODU is working properly, in case unusual circumstance then in time produce corresponding alarm sign, and notice indoor unit IDU4 or PC monitors M onitor5;
Phase-locked loop is adjusted: monitor each road phase-locked loop state in real time, MCU chip 1 judges as requested whether current outdoor unit ODU is working properly, in case unusual circumstance then in time produce corresponding alarm sign, and notice indoor unit IDU4 or PC monitors M onitor5;
In real time receive and carry out every information order of watch-dog, comprising: reading and upgrading or the like of the inquiry of power, frequency, switch transmission channel, temperature inquiry, every alarm support, production and configuration information and setting, every correction chart data is set.
Claims (3)
1, a kind of supervisory circuit of microwave outdoor unit is characterized in that:
This supervisory circuit is provided with a MCU chip, gathers radio frequency post a letter, collect mail frequency, the power signal of port, control of output temperature compensation after treatment and power attenuation control, and output power levels is indicated; The MCU chip also with a modulating and demodulating signal module communication, the modulating and demodulating signal module is by power module and indoor unit IDU communication, the MCU chip is connected with the PC monitor by the RS232 port.
2, by the supervisory circuit of the described microwave outdoor unit of claim 1, it is characterized in that:
Described function of temperature compensation control and power attenuation control according to temperature frequency table compensating frequency error, according to the current power level of gathering, determine that the transmitted power level value that current outdoor unit ODU need reach compensates or control decay.
3, by the supervisory circuit of the described microwave outdoor unit of claim 1, it is characterized in that:
Described MCU chip provides signal source by a crystal oscillator, and the crystal oscillator signal source also offers the modulating and demodulating signal module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100390774A CN101291185A (en) | 2008-06-17 | 2008-06-17 | Monitoring circuit for microwave outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100390774A CN101291185A (en) | 2008-06-17 | 2008-06-17 | Monitoring circuit for microwave outdoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101291185A true CN101291185A (en) | 2008-10-22 |
Family
ID=40035289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100390774A Pending CN101291185A (en) | 2008-06-17 | 2008-06-17 | Monitoring circuit for microwave outdoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101291185A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571155A (en) * | 2010-12-30 | 2012-07-11 | 芯讯通无线科技（上海）有限公司 | Frequency correcting device, method for correcting frequency as well as SRD (Short Range Devices) communication system and communication method |
| CN103427896A (en) * | 2013-08-05 | 2013-12-04 | 上海灵亨信息技术有限公司 | Satellite modem control circuit with human-computer interface |
| CN110007208A (en) * | 2019-04-19 | 2019-07-12 | 上海华虹宏力半导体制造有限公司 | Radio-frequency power capacitance measurement method |
| CN115946740A (en) * | 2023-03-13 | 2023-04-11 | 广汉科峰电子有限责任公司 | Integrated train monitoring and identifying system |
-
2008
- 2008-06-17 CN CNA2008100390774A patent/CN101291185A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571155A (en) * | 2010-12-30 | 2012-07-11 | 芯讯通无线科技（上海）有限公司 | Frequency correcting device, method for correcting frequency as well as SRD (Short Range Devices) communication system and communication method |
| CN102571155B (en) * | 2010-12-30 | 2016-04-20 | 芯讯通无线科技（上海）有限公司 | The method of frequency correcting apparatus, emending frequency, SRD communication system and bearing calibration |
| CN103427896A (en) * | 2013-08-05 | 2013-12-04 | 上海灵亨信息技术有限公司 | Satellite modem control circuit with human-computer interface |
| CN103427896B (en) * | 2013-08-05 | 2016-09-21 | 上海灵亨信息技术股份有限公司 | There is the satellite modem control circuit of man machine interface |
| CN110007208A (en) * | 2019-04-19 | 2019-07-12 | 上海华虹宏力半导体制造有限公司 | Radio-frequency power capacitance measurement method |
| CN110007208B (en) * | 2019-04-19 | 2021-02-12 | 上海华虹宏力半导体制造有限公司 | Radio frequency power capacity value measuring method |
| CN115946740A (en) * | 2023-03-13 | 2023-04-11 | 广汉科峰电子有限责任公司 | Integrated train monitoring and identifying system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104180936A (en) | Mining intrinsic safety type micro-power-consumption wireless and wired communication self-powered pressure sensor | |
| CN101291185A (en) | Monitoring circuit for microwave outdoor unit | |
| CN103401603A (en) | Control circuit of satellite modem | |
| CN103427896B (en) | There is the satellite modem control circuit of man machine interface | |
| CN202204863U (en) | Digital multimeter based on Bluetooth interface | |
| CN201166913Y (en) | Temperature transmitter | |
| CN101350643A (en) | Method for compensating RF module performance and improved RF module | |
| CN208190661U (en) | A kind of LoRa signal strength monitoring terminal device | |
| CN102032860A (en) | Wireless displacement sensor | |
| CN202177664U (en) | Single-phase electric energy data dynamic acquisition intelligent terminal | |
| CN201867168U (en) | Wireless displacement sensor | |
| CN101277157A (en) | Monitoring circuit of microwave communication system outdoor unit | |
| CN103033123A (en) | Displacement measurement device | |
| CN201504340U (en) | Remote monitoring system of cableless streetlight | |
| CN211207143U (en) | L oRa-based bridge monitoring strain sensor | |
| CN212513373U (en) | Wireless temperature acquisition device | |
| CN209230719U (en) | A kind of intelligent liquid level monitoring device based on LoRa | |
| CN104848967A (en) | Wireless pressure detector | |
| CN206988825U (en) | A kind of gas ductwork monitoring device | |
| CN102064466A (en) | High-power laser power supply control system and method | |
| CN102289924B (en) | Temperature measurement device for overhead power transmission line | |
| CN102843386B (en) | Radio frequency communication module for fault indicator of power distribution network line and applications of radio frequency communication module | |
| CN205375149U (en) | System qu wendu wireless transmission control system based on touch screen control | |
| CN104426616A (en) | Method and device for testing sensitivity of micro-power wireless complete machine | |
| CN205622324U (en) | Prescient system of 66kV substation equipment state thing networking intelligence |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20081022 |