CN209606815U - Parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS - Google Patents
Parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS Download PDFInfo
- Publication number
- CN209606815U CN209606815U CN201920681070.6U CN201920681070U CN209606815U CN 209606815 U CN209606815 U CN 209606815U CN 201920681070 U CN201920681070 U CN 201920681070U CN 209606815 U CN209606815 U CN 209606815U
- Authority
- CN
- China
- Prior art keywords
- power supply
- pin
- chip microcontroller
- unit
- control module
- 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.)
- Active
Links
Landscapes
- Alarm Systems (AREA)
Abstract
The utility model discloses a kind of GNSS, and parabola antenna driving unit power supply health control module is continuously tracked, and belongs to technical field of satellite navigation.The power supply health control module includes single-chip microcontroller, and the power supply unit, RS232/RS484 communication interface converting unit, working status indication unit, signal output unit, reset circuit and the clock circuit that are connected on single-chip microcontroller.The utility model is powered using UPS, in the normal mode of operation, carries out the real-time monitoring that antenna driver section divides mains supply quality, and send the quality signal of drive part mains supply to antenna ACU in real time；Under the abnormal conditions that alternating current is interrupted due to various unplanned factors, the recovery of real-time detection alternating current and quality condition, after alternating current restores normal again, antenna ACU is antenna driver section point power-up automatically, and according to fault moment mission planning, it is restored to automatic work process, realizes the health control of GNSS antenna drive part mains supply and power-off auto restore facility.
Description
Technical field
The utility model belongs to technical field of satellite navigation, particularly relates to one kind and is suitable for Global Satellite Navigation System
(GNSS) the power supply health control module of parabola antenna driving unit is continuously tracked.
Background technique
According to Global Satellite Navigation System (GNSS) star the business demands such as big system uplink injection and time synchronization, fortune control
System GNSS parabola antenna allows for the GNSS navigation satellite (GEO/IGSO/ that a variety of tracks in visual segmental arc are continuously tracked
MEO), connect and complete navigation signal transmitting and reception task.Therefore, it is the relatively conventional antenna of GNSS antenna that antenna, which is continuously tracked,
Distinguishing feature, working in the case where power supply unhealthy (overvoltage, under-voltage, phase shortage, frequency excessively high, underfrequency) will increase
Driving unit once repeatedly occurs in previous actual motion and damages phenomenon, to improve antenna for the probability of damage of antenna driving unit
The health control of driving unit power supply is horizontal, special to design antenna driving unit power supply health control module.
Conventional aerial is mainly made of antenna feeder extension set, structure extension set, SERVO CONTROL extension set and ancillary equipment etc..Wherein: watching
Taking control extensions mainly includes antenna control unit (ACU), drive control unit (DCU), orientation and pitch drive unit (ADU/
EDU), pitching lock cell, driving motor, shaft-position encoder, power supply and security protection unit.Power supply unit be divided into control electricity and
Power electric, control electricity generally use two-way 220V UPS uninterruptible power supply as ACU power supply；Power electric generallys use multichannel 380V/
220V mains supply is DCU, ADU/EDU power supply.Under normal mode of operation, advised by antenna control unit ACU according to antenna task
Draw the control of realization antenna automatic running.But under commercial power interruption or the unhealthy situation of fluctuation, antenna servo electromotor brake
Band-type brake, antenna keep direction state at that time.It being still up at this time by the ACU that UPS powers, order angle is persistently sent,
Motor is caused starting, band-type brake phenomenon repeatedly, driving unit easy to damage occur.In addition, alternating current is again due to lacking power quality management
After secondary recovery, it is necessary to restore drive part power supply manually, antenna could restore to work normally.
Utility model content
The purpose of this utility model is that antenna, which is continuously tracked, for GNSS provides driving power health control module, realize
Antenna servo electric-motor drive unit automatic protection functions and power-off auto restore facility are continuously tracked in GNSS.GNSS antenna servo electricity
Source health control module is powered by UPS, and real-time monitoring antenna driver section divides mains supply quality, under alternating current normal condition, to
GNSS antenna ACU sends mains supply health signal；In the case where alternating current powers off or fluctuates abnormal conditions, sent to GNSS antenna ACU
The unhealthy signal of mains supply.The quality signal that GNSS antenna servo unit is provided according to power supply health control module is realized
GNSS antenna driving planning and power-off auto restore facility.
Parabola antenna driving unit power supply health control module, institute is continuously tracked in a kind of GNSS provided by the utility model
The power supply health control module stated includes STC12C5A60S2 single-chip microcontroller, and be connected on single-chip microcontroller power supply unit,
RS232/RS484 communication interface converting unit, working status indication unit, signal output unit, reset circuit and clock circuit.
Above-mentioned component composition GNSS antenna drive part mains supply is health management system arranged.Wherein STC12C5A60S2 single-chip microcontroller is described
Power supply health control module CPU.Power supply unit (AC/DC) connects the VCC interface of single-chip microcontroller, is STC12C5A60S2 monolithic
Machine and other units provide working power.RS232/RS484 communication interface converting unit complete single-chip microcontroller RS232 communication interface with
The connection of EM600LCD display instrument RS485 communication interface, single-chip microcontroller are read by the RS232/RS484 communication interface converting unit
EM600LCD display instrument data.Working status indication unit connects working station indicator, and working station indicator is for referring to
Show that the working condition of power supply health control module, the bright expression power supply health control module of lamp are working properly.On signal output unit
Power failure alarm buzzer, power failure warning light (LED light) and+5V output signal, the power failure is connected with to accuse
Audible and visual alarm when alert buzzer and power failure warning light unhealthy for mains supply, drives when CPU judges that alternating current is unhealthy
Dynamic buzzer and LED light while audible and visual alarm.+ 5V output signal (Transistor-Transistor Logic level) connection GNSS antenna drive part accordingly controls
Input interface, the output+5V signal when power supply health control module determines alternating current health, GNSS antenna drive part receive this
+ 5V output signal just will do it antenna driving behavior.Reset circuit connects the RST interface on single-chip microcontroller, powers on for single-chip microcontroller
Hand-reset when reset and power supply health control module failure.Clock circuit connects the XTA interface on single-chip microcontroller, mentions for single-chip microcontroller
For work clock.Man-machine interface use EM600LCD display instrument, realize GNSS be continuously tracked antenna driving power three-phase voltage,
Electric current, frequency data acquisition, display, parameter setting function, have 485 communication interfaces, measurement accuracy reaches 0.2 grade.
Utility model has the advantages that
(1) the power supply health control module for applying the utility model, when power supply health control module determines alternating current health
Output+5V signal, GNSS antenna drive part, which receives+5V the output signal, just will do it antenna driving behavior.
(2) the power supply health control module described in lacks mains supply quality for conventional aerial driving unit power module
Problem of management is specially designed, and GNSS antenna driving power-off auto restore facility is continuously tracked in realization.
(3) the power supply health control module is powered using UPS, in the normal mode of operation, passes through power supply smart instrument
The real-time monitoring that antenna driver section divides mains supply quality is carried out, and sends drive part mains supply to antenna ACU in real time
Quality signal.
(4) under the abnormal conditions that alternating current is interrupted due to various unplanned factors, the power supply health control module is real
When detection alternating current recovery and quality condition, after alternating current restores normal again, antenna ACU is that antenna driver section point adds automatically
Electricity, and according to fault moment mission planning, it is restored to automatic work process, realizes GNSS antenna drive part mains supply health
Management and power-off auto restore facility.
Detailed description of the invention
Fig. 1 is that parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS of the utility model
Topology diagram；
Fig. 2 is the circuit realization schematic diagram that parabola antenna driving unit power supply health control module is continuously tracked in GNSS.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
The utility model provides a kind of GNSS and parabola antenna driving unit power supply health control module, this mould is continuously tracked
Block judges the healthy shape of power supply by GNSS being continuously tracked the analytical calculations of antenna driving power three-phase voltage, frequency data
Condition, and the health status of power supply is fed back into antenna control unit ACU.
As shown in Figure 1, the power supply health control module includes STC12C5A60S2 single-chip microcontroller, and it is connected to monolithic
Power supply unit, RS232/RS484 communication interface converting unit, working status indication unit, signal (power failure sound on machine
Alarm, the alarm of power failure light ,+5VTTL level signal) output unit, reset circuit and clock circuit.Above-mentioned component composition
GNSS antenna drive part mains supply is health management system arranged.Wherein STC12C5A60S2 single-chip microcontroller is the power supply health pipe
Manage the CPU of module.Power supply unit (AC/DC) connects the VCC interface of single-chip microcontroller, is STC12C5A60S2 single-chip microcontroller and other units
Working power is provided.RS232/RS484 communication interface converting unit completes single-chip microcontroller RS232 communication interface and EM600LCD is shown
The connection of instrument RS485 communication interface, single-chip microcontroller read EM600LCD by the RS232/RS484 communication interface converting unit and show
Instrumented data.Working status indication unit connects working station indicator, and working station indicator is used to indicate power supply health pipe
The working condition of module is managed, the bright expression power supply health control module of lamp is working properly.Power supply event is connected on signal output unit
Barrier alarm buzzer, power failure warning light (LED light) and+5V output signal, the power failure alarm buzzer and electricity
Audible and visual alarm when fault warning lamp in source is unhealthy for mains supply drives buzzer and LED when CPU judges that alternating current is unhealthy
Lamp while audible and visual alarm.+ 5V output signal (Transistor-Transistor Logic level) connection GNSS antenna drive part accordingly controls input interface, works as electricity
Health control module in source determines that output+5V signal when alternating current health, GNSS antenna drive part receive the+5V output signal
It will do it antenna driving behavior.Reset circuit connects the RST interface on single-chip microcontroller, for single-chip microcontroller electrification reset and power supply health
Hand-reset when management module failure.Clock circuit connects the XTA interface on single-chip microcontroller, provides work clock for single-chip microcontroller.People
Machine interface uses EM600LCD display instrument, realizes that antenna driving power three-phase voltage, electric current, frequency data is continuously tracked in GNSS
Acquisition, display, parameter setting function, have 485 communication interfaces, and measurement accuracy reaches 0.2 grade.
The circuit diagram of power management module provided by the utility model, as shown in Fig. 2, the RS232/485 communication connects
The circuit structure of mouth converting unit includes MAX485 chip, S9013 triode and other periphery Resistor-Capacitor Units.MAX485 chip
The end DI, RO is separately connected the end single-chip microcontroller TXD, RXD, transmits for two chip chambers, 232 signal.Single-chip microcontroller P2.5 pin is through 10K Ω
Resistance R19 is connected to S9013 transistor base, and is connected to MAX485 chip through collector, 10K Ω resistance R17 and receives and send out
Enable end DE, RE pin sent, controls for the port DI, RO reiving/transmitting state, and S9013 transistor emitter is connected to Vcc power supply
End.MAX485 chip A pin connect between 750K Ω pull-up resistor R10, B pin and ground with Vcc power end and connects under 750K Ω
Pull-up resistor R11, MAX485 chip A pin and B pin twisted pair line connection are to the port B, A of EM600LCD display instrument, with reality
The electrical connection of 485 communication signals, is arranged on the twisted pair between existing MAX485 chip and EM600LCD display instrument
15K Ω current-limiting resistance R7 and R8.Between the port MAX485 chip AB and meet 120K Ω build-out resistor R9.In MAX485 chip
Three capacitors C9, C10 and C11 in parallel between Vcc pin and ground, 4.4 μ F of capacitor C9 capacity, capacitor C10 capacity 104F, capacitor
C11 capacity 20pF.10K Ω resistance R18 is connected between the S9013 transistor collector and ground.
In the signal output unit, single-chip microcontroller output control signal is exported through the port single-chip microcontroller P0.0, and P0.0 is through 4.7K
The pin 2 of Ω resistance R31 connection TLP521-1 optocoupler U2, U2 pin 1 are connected to Vcc, between the pin 1 of U2, pin 2 and meet 10K
Ω resistance R32.U2 pin 4 is connected to+12V, and pin 3 is connected to S8050 triode Q2 base stage, Q2 base stage through 6K Ω resistance R33
Between emitter and connect 5.1K Ω resistance R38, emitter ground connection.12V relay K4 coil connects+12V power supply and Q2 collection respectively
Electrode.Relay K4 includes two pairs of normally opened, normally closed conversion nodes, and the normally closed node of first pair of conversion node is for driving power event
Hinder warning light LED1 and buzzer.Power failure warning light LED1 is connected in parallel with buzzer, positive connection+12V, cathode connection
Relay K4 first is to Change-over knot point travelling contact.The normally opened node moving contact of second pair of switching node of relay K4 connects Vcc
Power supply, static contact connect P1 female terminal 1, and P1 female terminal 2 is grounded.The Transistor-Transistor Logic level signal of module output is connected through P1 socket
Input interface is accordingly controlled to GNSS antenna drive part.10K Ω resistance R41 is connected between P1 female terminal 1 and ground.
In the circuit of module working status indication unit, module normal operating conditions indication signal is through the port single-chip microcontroller P0.1
Output, pin 2 of the P0.1 through 4.7K Ω resistance R36 connection TLP521-1 optocoupler U3, the pin 1 of U3 are connected to Vcc, the pin of U3
1, between pin 2 and 10K Ω resistance R35 is met.The pin 4 of U3 is connected to+12V, and pin 3 is connected to S8050 tri- through 6K Ω resistance R37
Pole pipe Q3 base stage, triode Q3 base stage and emitter simultaneously meet 5.1K Ω resistance R38, emitter ground connection；12V relay K5 coil point
+ 12V power supply and triode Q3 collector are not connect.Relay K5 include two pairs of normally opened nodes, one pair of them node moving contact connection+
12V power supply, static contact connect LED2 working station indicator anode, LED2 cathode ground connection.
After the power supply health control module control program power-up initializing, voltage, frequency parameter and setting ginseng are read
Then number carries out phase shortage, voltage out-of-limit, frequency out-of-limit and compares calculating, if there is any phase shortage or out-of-limit failure, hides through delay
Failure still has after crossing the transient fluctuation of alternating current, then exports municipal power failure alarm signal, otherwise exports and keeps power supply normal
Signal.
In the power supply health control module, it is logical that RS232/RS484 communication interface converting unit completes single-chip microcontroller RS232
Communication interface is connect with EM600LCD display instrument RS485 communication interface, and EM600LCD display instrument connects with single-chip microcontroller using 485
Mouth, ModeBUS communications protocol, communication transfer signal are asynchronous system, and as unit of byte.It is transmitted between main website and slave station
Communication information be 11 word formats:
Even-odd check:
No parity:
Frame format:
| Address code (Address) | Function code (Function) | Data field (Data) | It verifies (Check) |
| 8-Bits | 8-Bits | N×8-Bits | 16-Bits |
After data frame incoming terminal, which removes the data head of data frame, such as detects errorless be carried out after reading data
It is required that task, then the data of generation are put into data frame and send back requestor.It include: terminal in the data frame of return
Location is performed order, data, check code.
Address code: occupying a byte, and address code is the first byte of each communication information frame, range 0~255 (00H~
FFH).Each slave must have unique address code, and the slave for only meeting address code could respond and loopback message.
When slave loopback message, echo back data is started with respective address code.The address code of transmission shows the slave that will be sent to
Address, and the address code that slave returns shows the slave addresses of loopback.Corresponding address code shows the information from where.
00H is broadcast address, and all substations respond broadcasting command, but without return information.
Function code: function code occupies a byte, and range 1~127 (01H~7FH) informs that the terminal device being addressed is held
Which kind of operation of row.
The function code that this module is used is as shown in the table:
03H: read register data
04H: read input register data
Data field: data length is indefinite, and data field is that main website and substation carry out data friendship in a manner of read-write register
It changes.
Verification mode: CRC16 cyclic redundancy check.
Data read address relevant to this module:
Corresponding relationship in upper table between data (Ai) and actual value are as follows:
Voltage: U=(Ai/10) × (PT1/PT2), Ai are signless integer, unit V.
Frequency: F=Ai/100, Ai are signless integer, unit Hz.
The power supply health control module is with the following functions:
1) there is three-phase alternating voltage, current measurement, display function.
2) there is supply frequency measurement, display function.
3) have the function of that voltage bound is respectively set.
4) has the function of pile defection.
5) have the function of working state of system, monitoring power failure alarm instruction.
6) there is mains supply state-indicating function (+5V Transistor-Transistor Logic level indicates that power supply output is normal).
The power supply health control module surface structure:
The power supply health control module is located at one and uses in 19 inches of cabinet 3U cabinets of standard, outside the cabinet
It sees having a size of wide × deep × high: 482mm × 480mm × 133mm.Inlet-outlet line plug terminal, cabinet rear panel is arranged in cabinet rear end
Grid radiator window is set.Cabinet front panel configures 1 piece of 96mm × 96m LCD intelligence instrument, 2 LED lights, 1 buzzing
Device.
Power supply health control module provided by the utility model, using enhanced MCS-51 series monolithic
STC12C5A60S2 is that core component forms a single-chip computer control system, and single-chip microcontroller passes through RS485 communication interface and alternating current
The EM600LCD instrument in source communicates, and acquires monitored mains supply three-phase voltage, frequency operating value and voltage, frequency out-of-limit setting
The parameters such as value, through internal processes operation, when judging that city's electricity quality meets GNSS antenna power quality requirements, to GNSS antenna ACU
Send mains supply health signal.
Claims (4)
1. parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS, it is characterised in that:
The power supply health control module includes STC12C5A60S2 single-chip microcontroller, and the power supply list being connected on single-chip microcontroller
Member, RS232/RS484 communication interface converting unit, working status indication unit, signal output unit, reset circuit and clock electricity
Road；Wherein STC12C5A60S2 single-chip microcontroller is the CPU of the power supply health control module；Power supply unit connection
The VCC interface of STC12C5A60S2 single-chip microcontroller is that STC12C5A60S2 single-chip microcontroller and the conversion of RS232/RS484 communication interface are single
Member, working status indication unit, signal output unit provide working power；RS232/RS484 communication interface converting unit is completed
Single-chip microcontroller RS232 communication interface is connect with EM600LCD display instrument RS485 communication interface, and STC12C5A60S2 single-chip microcontroller passes through
The RS232/RS484 communication interface converting unit reads EM600LCD display instrument data；Working status indication unit connects work
Make status indicator lamp, working station indicator is used to indicate the working condition of power supply health control module, and the bright expression power supply of lamp is strong
Health management module is working properly；Power failure alarm buzzer, power failure warning light and+5V are connected on signal output unit
Output signal, acousto-optic is accused when the described power failure alarm buzzer and power failure warning light unhealthy for mains supply
It is alert, buzzer and LED light audible and visual alarm simultaneously are driven when CPU judges that alternating current is unhealthy；+ 5V output signal connects GNSS antenna
Drive part accordingly controls input interface, the output+5V signal when power supply health control module determines alternating current health, GNSS antenna
Drive part, which receives+5V the output signal, just will do it antenna driving behavior；RST on reset circuit connection single-chip microcontroller connects
Mouthful；Clock circuit connects the XTA interface on single-chip microcontroller.
2. parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS according to claim 1,
It is characterized by: the circuit structure of the RS232/485 communication interface converting unit includes MAX485 chip, tri- pole S9013
Pipe and periphery Resistor-Capacitor Unit；The end MAX485 chip DI, RO is separately connected the end single-chip microcontroller TXD, RXD；Single-chip microcontroller P2.5 pin is through 10K
Ω resistance R19 is connected to S9013 transistor base, and through collector, 10K Ω resistance R17 be connected to MAX485 chip receive and
Enable end DE, RE pin of transmission；S9013 transistor emitter is connected to Vcc power end；MAX485 chip A pin and Vcc electricity
Source, which connects, connects 750K Ω pull down resistor R11, MAX485 chip A pin between 750K Ω pull-up resistor R10, B pin and ground
With the port B, A of B pin twisted pair line connection to EM600LCD display instrument, 15K Ω is provided on the twisted pair and is limited
Leakage resistance R7 and R8；Between the port MAX485 chip AB and meet 120K Ω build-out resistor R9；In MAX485 chip Vcc pin and ground
Between parallel connection three capacitors C9, C10 and C11, between the S9013 transistor collector and ground connect 10K Ω resistance R18.
3. parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS according to claim 1,
It is characterized by: single-chip microcontroller output control signal is exported through the port single-chip microcontroller P0.0, P0.0 warp in the signal output unit
The pin 2 of 4.7K Ω resistance R31 connection TLP521-1 optocoupler U2, U2 pin 1 are connected to Vcc, between the pin 1 of U2, pin 2 and connect
10K Ω resistance R32；U2 pin 4 is connected to+12V, and pin 3 is connected to S8050 triode Q2 base stage, Q2 base through 6K Ω resistance R33
Between pole and emitter and connect 5.1K Ω resistance R38, emitter ground connection；12V relay K4 coil meets+12V power supply and Q2 respectively
Collector；Relay K4 includes two pairs of normally opened, normally closed conversion nodes, and the normally closed node of first pair of conversion node is used for driving power
Fault warning lamp LED1 and buzzer；Power failure warning light LED1 is connected in parallel with buzzer, positive connection+12V, and cathode connects
Contact relay K4 first is to Change-over knot point travelling contact；The normally opened node moving contact of second pair of switching node of relay K4 connects
Vcc power supply, static contact connect P1 female terminal 1, and P1 female terminal 2 is grounded；The Transistor-Transistor Logic level signal of module output connects through P1 socket
It is connected to GNSS antenna drive part and accordingly controls input interface；10K Ω resistance R41 is connected between P1 female terminal 1 and ground.
4. parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS according to claim 1,
It is characterized by: module normal operating conditions indication signal is through single-chip microcontroller P0.1 in the circuit of module working status indication unit
Port output, pin 2 of the P0.1 through 4.7K Ω resistance R36 connection TLP521-1 optocoupler U3, the pin 1 of U3 are connected to Vcc, U3's
Between pin 1, pin 2 and meet 10K Ω resistance R35；The pin 4 of U3 is connected to+12V, and pin 3 is connected to through 6K Ω resistance R37
S8050 triode Q3 base stage, triode Q3 base stage and emitter simultaneously meet 5.1K Ω resistance R38, emitter ground connection；12V relay
K5 coil connects+12V power supply and triode Q3 collector respectively；Relay K5 includes two pairs of normally opened nodes, and one pair of them node is dynamic
Contact connection+12V power supply, static contact connect LED2 working station indicator anode, LED2 cathode ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920681070.6U CN209606815U (en) | 2019-05-13 | 2019-05-13 | Parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920681070.6U CN209606815U (en) | 2019-05-13 | 2019-05-13 | Parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209606815U true CN209606815U (en) | 2019-11-08 |
Family
ID=68408016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920681070.6U Active CN209606815U (en) | 2019-05-13 | 2019-05-13 | Parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209606815U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447609A (en) * | 2022-04-11 | 2022-05-06 | 天津讯联科技有限公司 | Large antenna digital guiding device with dynamic compensation and digital guiding method thereof |
| US20230095394A1 (en) * | 2021-09-29 | 2023-03-30 | Qualcomm Incorporated | Dynamic radio frequency receive chain control |
-
2019
- 2019-05-13 CN CN201920681070.6U patent/CN209606815U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230095394A1 (en) * | 2021-09-29 | 2023-03-30 | Qualcomm Incorporated | Dynamic radio frequency receive chain control |
| US11754723B2 (en) * | 2021-09-29 | 2023-09-12 | Qualcomm Incorporated | Dynamic radio frequency receive chain control |
| CN114447609A (en) * | 2022-04-11 | 2022-05-06 | 天津讯联科技有限公司 | Large antenna digital guiding device with dynamic compensation and digital guiding method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102354175B (en) | Remote I/O (input/output) control system of Modbus fieldbus DI-16-route monitor | |
| CN209606815U (en) | Parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS | |
| CN202795632U (en) | Two-wire electric fire monitoring system | |
| CN101359029A (en) | 1-wire bus DCearth fault on-line automatic monitoring apparatus | |
| CN205596111U (en) | Online identification system of platform district's circuit | |
| CN208999824U (en) | A kind of air-conditioner controller automatic detection device | |
| CN205610343U (en) | Embedding integrated form distribution automation terminal | |
| CN202948290U (en) | Ship power information distributed data acquisition device | |
| CN105134296B (en) | Digital mine safety monitoring system | |
| CN106787219A (en) | Automation of transformation substations equipment fault judgement and self-healing method | |
| CN103532804A (en) | Double-Ethernet networking server provided with multi-serial ports | |
| CN102708624A (en) | Prepayment electricity utilization management terminal | |
| CN205787003U (en) | A kind of PCB intelligent detection device | |
| CN204535758U (en) | Power transmission and transforming equipment integration monitoring device | |
| CN204243908U (en) | A kind of electric instrument Fieldbus Intelligent Selected Inspection device | |
| CN101397020A (en) | Intelligent acquisition driving device | |
| CN1402020A (en) | Automatic weather station | |
| CN203588057U (en) | Wind power monitoring device | |
| CN206658102U (en) | A kind of automation of transformation substations equipment fault self-healing system | |
| CN202353613U (en) | Ethernet-controller area network (CAN) bus data acquisition interface device | |
| CN203840626U (en) | Electric power carrier wave intelligent railway signal lighting system | |
| CN107742416A (en) | A kind of electricity meter parameter acquisition monitoring system based on wireless network | |
| CN105652780B (en) | A kind of intelligent three-dimensional garage control system and method | |
| CN204425038U (en) | A kind of power distribution automation detection and control terminal | |
| CN208207193U (en) | A kind of family table examination device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |