CN103970174B - A kind of TR assembly debugging instrument power control circuit - Google Patents
A kind of TR assembly debugging instrument power control circuit Download PDFInfo
- Publication number
- CN103970174B CN103970174B CN201410210441.4A CN201410210441A CN103970174B CN 103970174 B CN103970174 B CN 103970174B CN 201410210441 A CN201410210441 A CN 201410210441A CN 103970174 B CN103970174 B CN 103970174B
- Authority
- CN
- China
- Prior art keywords
- mos switch
- module
- voltage
- sampled point
- assembly
- 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
- Control Of Voltage And Current In General (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of TR assembly debugging instrument power control circuit, comprise AD and turn DC module, one MOS switch, voltage stabilizing chip module, 2nd MOS switch, 3rd MOS switch, 4th MOS switch, one-chip computer module, DA controls, the machine button, power amplifier button and assembly button, one-chip computer module of the present invention controls to make voltage stabilizing chip module be in an error range by DA, make the output valve of voltage more accurate, the front and back input end of the chip module of voltage stabilizing is simultaneously equipped with MOS switch, AD sampled point is equipped with before MOS switch, whether one-chip computer module normally works by AD sampled point testing circuit, whether electric current and voltage is normal, ensure the safety of circuit, go wrong simultaneously and can report to the police in time, reminding user, this power control circuit is arranged in T/R assembly debugging instrument by the present invention, for T/R assembly debugging instrument provides internal electric source, not only advantageously in the test of T/R assembly, decrease the complicated processes of T/R module testing simultaneously.
Description
Technical field
The invention belongs to TR module testing technical field, be specifically related to a kind of TR assembly debugging instrument power control circuit.
Background technology
Wideband digital array radar is an important trend of current phased-array radar development, because it completes the conversion between digital signal and simulating signal in radar antenna array, it is made to become a digitized radar completely, along with the development of high-speed sampling technology and high speed digital signal processor, wideband digital T/R assembly is one of gordian technique of wideband digital array radar.
T/R assembly module is the core of Digital Array Radar, it integrates transmitter, receiver, driver and local oscillation signal generator, become a complete transmitter and receiver subsystem, it be realize radar altitude figure and multi-functionally provide feasible hardware platform.
Utilize DDS technology to complete radar signal to produce, frequency source and a facies-controlled integration realize, and the input/output information of its Control Component is all digitized.During transmitting, produced the width phase control word of each antenna element by real-time signal processor, the signal generator of each T/R assembly is controlled, produce the radiofrequency signal of certain frequency, phase place, amplitude; Export corresponding antenna element again to, finally by the transmitting pattern of radiation signal needed for space combination of each array element.During reception, the microwave signal of each unit of each T/R assembly receiving antenna, forms intermediate-freuqncy signal through down coversion, then export echoed signal after if sampling process; A large amount of echo datas that multi-path digital T/R assembly exports, are sent to real-time signal processor by high speed data transmission system.
Digital T/R assembly based on Direct frequency synthesizer is one of critical component of Digital Array Radar, include the parts such as frequency source, Direct frequency synthesizer, power amplifier, mixing, filtering, analog to digital conversion, have the multiple implementation such as centralized frequency source, distributed frequency source.
And just because of the importance of T/R assembly in Digital Array Radar, the performance of T/R assembly also just seems particularly important, it can thus be appreciated that, the test most important thing especially of T/R assembly, T/R assembly before being taken into use, all need to use on radar through strictly careful test, because the transmitting-receiving performance of T/R assembly determines the quality of radar signal, so the test job of T/R assembly is extremely important.
The testing tool function very unicity of existing T/R assembly, especially provide power supply aspect particularly not enough, the test of existing T/R assembly or the instrument of debugging can not provide power supply, all need an external source of stable pressure or DC source to provide power supply, like this when testing, just need to move many instruments to test simultaneously, whole work is not only very loaded down with trivial details, and once out of joint, just need the investigation of carrying out one by one to each instrument, looking up the fault is very inconvenient, simultaneously, external source of stable pressure is that T/R assembly carries out not having corresponding safeguard measure when connecting, once there is overvoltage or under-voltage situation in source of stable pressure, easily T/R assembly is burnt, cause irremediable loss, external power supply instrument is when connecting T/R assembly simultaneously, need to use multimeter to carry out voltage tester in advance, to ensure the accuracy that external power supply instrument exports, prevent from causing certain damage to T/R assembly, whole test process is not only loaded down with trivial details, and easily there is unexpected problem, cause irremediable loss.
Summary of the invention
Technical matters to be solved by this invention is: for the defect of prior art, a kind of TR assembly debugging instrument power control circuit is provided, be provided with voltage stabilizing chip module, generate the voltage required for T/R module testing, simultaneously, one-chip computer module controls to make voltage stabilizing chip module be in an error range by DA, make the output valve of voltage more accurate, the front and back input end of the chip module of voltage stabilizing is simultaneously equipped with MOS switch, AD sampled point is equipped with before MOS switch, whether one-chip computer module normally works by AD sampled point testing circuit, whether electric current and voltage is normal, ensure the safety of circuit, go wrong simultaneously and can report to the police in time, reminding user, this power control circuit is arranged in T/R assembly debugging instrument by the present invention, for T/R assembly debugging instrument provides internal electric source, not only advantageously in the test of T/R assembly, decrease the complicated processes of T/R module testing simultaneously.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of TR assembly debugging instrument power control circuit, comprise AD and turn DC module, one MOS switch, voltage stabilizing chip module, 2nd MOS switch, 3rd MOS switch, 4th MOS switch, one-chip computer module, DA controls, the machine button, power amplifier button and assembly button, wherein, one MOS switch connects AD respectively and turns the output terminal of DC module and the input end of voltage stabilizing chip module, the input end that AD turns DC module is connected with external power supply, voltage stabilizing chip module has three tunnels to export, three tunnels export and connect the 2nd MOS switch one end respectively, one end of 3rd MOS switch and one end of the 4th MOS switch, the other end of described 2nd MOS switch is connected with power amplifier button, the other end of described 3rd MOS switch is all connected with assembly button with the other end of described 4th MOS switch, one-chip computer module is connected with assembly button with power amplifier button respectively by the machine button, AD turns between DC module and a MOS switch and is provided with an AD sampled point, the 2nd AD sampled point is provided with between voltage stabilizing chip module and the 2nd MOS switch, the 3rd AD sampled point is provided with between voltage stabilizing chip module and the 3rd MOS switch, the 4th AD sampled point is provided with between voltage stabilizing chip module and the 4th MOS switch, one-chip computer module controls to be connected with voltage stabilizing chip module by DA, one AD sampled point, 2nd AD sampled point, 3rd AD sampled point is all connected with one-chip computer module with the 4th AD sampled point,
After AD turns the energising of DC module, one-chip computer module is detected the source voltage that AC turns DC module output terminal by an AD sampled point, and judge that AC turns the source voltage value of DC module output terminal, when source voltage value exceeds error range, one-chip computer module sends alerting signal, one MOS switch not conducting, power control circuit Non voltage output, source voltage value is positioned at error range, one MOS switch conduction, source voltage input voltage stabilizing chip module;
One-chip computer module controls voltage stabilizing chip module by the reference voltage during DA controls, thus output required voltage, voltage stabilizing chip module exports three road voltages, one-chip computer module is by the 2nd AD sampled point, 3rd AD sampled point and the 4th AD sampled point are sampled to three road output voltages of voltage stabilizing chip module respectively, sampling after and standard value compare judgement, if sampled value is in error range, the MOS switch corresponding with this sampled value then carries out conducting, if this sampled value exceeds error range, the MOS switch not conducting of this correspondence, then power control circuit Non voltage output, 2nd AD sampled point, the numerical value of the 3rd AD sampled point and the 4th AD sampled point is all in error range, then the 2nd MOS switch, 3rd MOS switch, the equal conducting of 4th MOS switch also exports corresponding voltage,
After the magnitude of voltage that one-chip computer module detects each sampled point is all normal, one-chip computer module sends enable signal to the machine button, assembly button and power amplifier button, the voltage that 2nd MOS switch exports exports through power amplifier button, the voltage that 3rd MOS switch exports and the voltage that the 4th MOS switch exports export through assembly button, in voltage output procedure, once the magnitude of voltage of certain sampled point occurs abnormal, one-chip computer module then sends alerting signal, and cuts off voltage output.
As further prioritization scheme of the present invention, a described AD sampled point, the 2nd AD sampled point, the 3rd AD sampled point and the 4th AD sample point are equipped with power resistor, and the circuit of one-chip computer module to this place calculates the magnitude of voltage of this sampled point after sampling.
As further prioritization scheme of the present invention, the 2nd MOS switch, the 3rd MOS switch and the 4th MOS output switching terminal are equipped with direct earth capacitance.
As further prioritization scheme of the present invention, the voltage stabilizing chip model that described voltage stabilizing chip module adopts is LT1963.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
The first, be provided with voltage stabilizing chip module, generate the voltage required for T/R module testing, meanwhile, one-chip computer module controls voltage stabilizing chip module is in an error range by DA, makes the output valve of voltage more accurate;
The second, the front and back input end of voltage stabilizing chip module is equipped with MOS switch, AD sampled point is equipped with before MOS switch, whether one-chip computer module normally works by AD sampled point testing circuit, whether electric current and voltage is normal, ensure the safety of circuit, go wrong simultaneously and can report to the police in time, reminding user;
Three, this power control circuit is arranged in T/R assembly debugging instrument by the present invention, for T/R assembly debugging instrument provides internal electric source, not only advantageously in the test of T/R assembly, decreases the complicated processes of T/R module testing simultaneously.
Accompanying drawing explanation
Fig. 1, electrical block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
The present invention discloses a kind of TR assembly debugging instrument power control circuit, as shown in Figure 1, comprise AD and turn DC module, a MOS switch, voltage stabilizing chip module, the 2nd MOS switch, the 3rd MOS switch, the 4th MOS switch, one-chip computer module, DA control, the machine button, power amplifier button and assembly button.
Wherein, one MOS switch connects AD respectively and turns the output terminal of DC module and the input end of voltage stabilizing chip module, the input end that AD turns DC module is connected with external power supply, external power supply is the AC power of 220V, voltage stabilizing chip module has three tunnels to export, three tunnels export and connect the 2nd MOS switch one end respectively, one end of 3rd MOS switch and one end of the 4th MOS switch, the other end of described 2nd MOS switch is connected with power amplifier button, the other end of described 3rd MOS switch is all connected with assembly button with the other end of described 4th MOS switch, one-chip computer module is connected with assembly button with power amplifier button respectively by the machine button, AD turns between DC module and a MOS switch and is provided with an AD sampled point, the 2nd AD sampled point is provided with between voltage stabilizing chip module and the 2nd MOS switch, the 3rd AD sampled point is provided with between voltage stabilizing chip module and the 3rd MOS switch, the 4th AD sampled point is provided with between voltage stabilizing chip module and the 4th MOS switch, one-chip computer module controls to be connected with voltage stabilizing chip module by DA, one AD sampled point, 2nd AD sampled point, 3rd AD sampled point is all connected with one-chip computer module with the 4th AD sampled point.
One AD sampled point, the 2nd AD sampled point, the 3rd AD sampled point and the 4th AD sample point are equipped with the power resistor of connecting into circuit, one-chip computer module prestores the resistance of power resistor, by gathering the current value of an AD sampled point, the 2nd AD sampled point, the 3rd AD sampled point and the 4th AD sampled point, calculate the magnitude of voltage of corresponding sampled point, thus the electric current of this sampled point and voltage are detected, check whether circuit normally works at any time, so that Timeliness coverage problem, report to the police.
Control method:
After AD turns the energising of DC module, one-chip computer module is detected the source voltage that AC turns DC module output terminal by an AD sampled point, and judge that AC turns the source voltage value of DC module output terminal, guarantee that AC turns DC module and normally works, prevent from AC from turning DC module to break down, cause that source voltage is excessive burns instrument, when source voltage value exceeds error range, one-chip computer module sends alerting signal, prompting subscriber's line circuit breaks down, cannot normally use, one MOS switch not conducting, block the transmission of abnormal voltage, power control circuit Non voltage output, protection circuit safety, source voltage value is positioned at error range, one MOS switch conduction, source voltage input voltage stabilizing chip module carries out voltage division processing,
One-chip computer module controls voltage stabilizing chip module by the reference voltage during DA controls, thus output required voltage, after being controlled by DA, the dividing potential drop that voltage stabilizing chip module produces not easily produces large error, phenomenon that is under-voltage or overvoltage can not be caused to circuit, not only be conducive to the test of T/R assembly, simultaneously also can the safety of effective protection circuit, voltage stabilizing chip module exports three road voltages, one-chip computer module is by the 2nd AD sampled point, 3rd AD sampled point and the 4th AD sampled point are sampled to three road output voltages of voltage stabilizing chip module respectively, sampling after and standard value compare judgement, if sampled value is in error range, the MOS switch corresponding with this sampled value then carries out conducting and carries out voltage output, if this sampled value exceeds error range, the MOS switch not conducting of this correspondence, then power control circuit Non voltage output, the safety of the T/R assembly that effective protection output voltage interface end is to be tested, 2nd AD sampled point, the sample magnitude of the 3rd AD sampled point and the 4th AD sampled point is all in error range, then the 2nd MOS switch, 3rd MOS switch, the equal conducting of 4th MOS switch also exports corresponding voltage,
After the magnitude of voltage that one-chip computer module detects each sampled point is all normal, one-chip computer module is to the machine button, assembly button and power amplifier button send enable signal, after user presses the machine button, voltage outputs to assembly button end and power amplifier button end, after user presses power amplifier button, the voltage that 2nd MOS switch exports exports through power amplifier button, after user presses assembly button, the voltage that 3rd MOS switch exports and the voltage that the 4th MOS switch exports export through assembly button, in voltage output procedure, once the magnitude of voltage of certain sampled point occurs abnormal, one-chip computer module then sends alerting signal, and cut off voltage output.
In the present invention, even if the value of each road voltage and current that one-chip computer module records is normal, voltage required for T/R module testing also cannot directly be added on T/R assembly, need just can be tested by protection layer by layer, the machine button just can be pressed in the normal situation of whole T/R assembly debugging instrument, illustrate that T/R assembly debugging instrument is in normal operating conditions, the machine button is pressed could be effectively, T/R assembly is when testing, component voltage and power amplifier voltage have certain order when powering up, once powering order mistake, easily burn T/R assembly or cause unnecessary damage, so by assembly button and power amplifier button for T/R assembly carries out adding electric control.
As further prioritization scheme of the present invention, 2nd MOS switch, 3rd MOS switch and the 4th MOS output switching terminal are equipped with direct earth capacitance, in active circuit, some alternating components are often mingled with in direct current signal, waveform just shows as noise, if ripple is excessive in DC voltage, instrument just there will be error when testing, the accuracy of testing not only is caused greatly to reduce if ripple exceedes certain scope, and easily certain damage is caused to device to be tested, use direct earth capacitance, can effective filtering ripple that circuit is affected greatly, not only be conducive to the stability of testing, the test that can not be also simultaneously T/R assembly by DC voltage introduces other can not the noise of filtering, thus affect the quality of T/R test.
As further prioritization scheme of the present invention, the voltage stabilizing chip model that described voltage stabilizing chip module adopts is LT1963, adopts voltage stabilizing chip not only can obtain stable voltage, but also can reduce the power consumption of whole circuit, and can boost, and can temperature flow; Adopt voltage stabilizing chip to reduce heating, the volume of voltage stabilizing chip is little, lightweight, can reduce the volume of whole circuit, is conducive to integrated, the realization of miniaturization.
Power module is not added in existing T/R assembly debugging instrument, cannot by itself for T/R assembly provides voltage, and need extra voltage source, not only easily cause the loaded down with trivial details of test process, and go wrong and not easily investigate, the T/R assembly debugging instrument power control circuit of the present invention's design, not only effectively for the test of T/R assembly provides reliable power supply, can it also avoid in test because power supply produced problem simultaneously.
By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also makes a variety of changes under the prerequisite not departing from present inventive concept.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this.Every technological thought proposed according to the present invention, and any change done on technical scheme basis, all fall within scope.
Claims (4)
1. a TR assembly debugging instrument power control circuit, it is characterized in that: comprise AD and turn DC module, one MOS switch, voltage stabilizing chip module, 2nd MOS switch, 3rd MOS switch, 4th MOS switch, one-chip computer module, DA controls, the machine button, power amplifier button and assembly button, wherein, one MOS switch connects AD respectively and turns the output terminal of DC module and the input end of voltage stabilizing chip module, the input end that AD turns DC module is connected with external power supply, voltage stabilizing chip module has three tunnels to export, three tunnels export and connect the 2nd MOS switch one end respectively, one end of 3rd MOS switch and one end of the 4th MOS switch, the other end of described 2nd MOS switch is connected with power amplifier button, the other end of described 3rd MOS switch is all connected with assembly button with the other end of described 4th MOS switch, one-chip computer module is connected with assembly button with power amplifier button respectively by the machine button, AD turns between DC module and a MOS switch and is provided with an AD sampled point, the 2nd AD sampled point is provided with between voltage stabilizing chip module and the 2nd MOS switch, the 3rd AD sampled point is provided with between voltage stabilizing chip module and the 3rd MOS switch, the 4th AD sampled point is provided with between voltage stabilizing chip module and the 4th MOS switch, one-chip computer module controls to be connected with voltage stabilizing chip module by DA, one AD sampled point, 2nd AD sampled point, 3rd AD sampled point is all connected with one-chip computer module with the 4th AD sampled point,
Control method:
After AD turns the energising of DC module, one-chip computer module is detected the source voltage that AC turns DC module output terminal by an AD sampled point, and judge that AC turns the source voltage value of DC module output terminal, when source voltage value exceeds error range, one-chip computer module sends alerting signal, one MOS switch not conducting, power control circuit Non voltage output, source voltage value is positioned at error range, one MOS switch conduction, source voltage input voltage stabilizing chip module;
One-chip computer module controls voltage stabilizing chip module by the reference voltage during DA controls, thus output required voltage, voltage stabilizing chip module exports three road voltages, one-chip computer module is by the 2nd AD sampled point, 3rd AD sampled point and the 4th AD sampled point are sampled to three road output voltages of voltage stabilizing chip module respectively, sampling after and standard value compare judgement, if sampled value is in error range, the MOS switch corresponding with this sampled value then carries out conducting, if this sampled value exceeds error range, the MOS switch not conducting of this correspondence, then power control circuit Non voltage output, 2nd AD sampled point, the numerical value of the 3rd AD sampled point and the 4th AD sampled point is all in error range, then the 2nd MOS switch, 3rd MOS switch, the equal conducting of 4th MOS switch also exports corresponding voltage,
After the magnitude of voltage that one-chip computer module detects each sampled point is all normal, one-chip computer module sends enable signal to the machine button, assembly button and power amplifier button, the voltage that 2nd MOS switch exports exports through power amplifier button, the voltage that 3rd MOS switch exports and the voltage that the 4th MOS switch exports export through assembly button, in voltage output procedure, once the magnitude of voltage of certain sampled point occurs abnormal, one-chip computer module then sends alerting signal, and cuts off voltage output.
2. a kind of TR assembly debugging instrument power control circuit as claimed in claim 1, it is characterized in that: a described AD sampled point, the 2nd AD sampled point, the 3rd AD sampled point and the 4th AD sample point are equipped with power resistor, the circuit of one-chip computer module to this place calculates the magnitude of voltage of this sampled point after sampling.
3. a kind of TR assembly debugging instrument power control circuit as claimed in claim 1, is characterized in that: the 2nd MOS switch, the 3rd MOS switch and the 4th MOS output switching terminal are equipped with direct earth capacitance.
4. a kind of TR assembly debugging instrument power control circuit as claimed in claim 1, is characterized in that: the voltage stabilizing chip model that described voltage stabilizing chip module adopts is LT1963.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410210441.4A CN103970174B (en) | 2014-05-19 | 2014-05-19 | A kind of TR assembly debugging instrument power control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410210441.4A CN103970174B (en) | 2014-05-19 | 2014-05-19 | A kind of TR assembly debugging instrument power control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103970174A CN103970174A (en) | 2014-08-06 |
| CN103970174B true CN103970174B (en) | 2015-07-29 |
Family
ID=51239801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410210441.4A Active CN103970174B (en) | 2014-05-19 | 2014-05-19 | A kind of TR assembly debugging instrument power control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103970174B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0755918A (en) * | 1993-06-30 | 1995-03-03 | Mitsubishi Electric Corp | Search and rescue radar transponder |
| CN101852853B (en) * | 2010-01-26 | 2011-12-28 | 北京科技大学 | Wireless network ranging system based on solar power supply |
| US8552902B2 (en) * | 2011-05-04 | 2013-10-08 | Sabertek | Methods and apparatus for suppression of low-frequency noise and drift in wireless sensors or receivers |
| CN203191546U (en) * | 2013-04-24 | 2013-09-11 | 桂林电子科技大学 | Measuring device for transmitting signal of TVLF water penetrating radar transmitter |
| CN103592633A (en) * | 2013-11-20 | 2014-02-19 | 中国船舶重工集团公司第七二四研究所 | S-wave-band miniaturization digital T/R assembly design method |
-
2014
- 2014-05-19 CN CN201410210441.4A patent/CN103970174B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103970174A (en) | 2014-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104931863B (en) | Synchronous generator for cable local discharge test | |
| CN207067330U (en) | A kind of synchronous generator for GIS equipment partial discharge test | |
| CN103176160A (en) | Local discharge simulation calibrating device | |
| CN105137292A (en) | Direct-current signal intelligent acquiring device used for high-voltage cable fault positioning | |
| US20220234602A1 (en) | Automobile diagnosis device, system and method | |
| CN102288849B (en) | Highway addressable remote transducer (HART) loop fault diagnosis instrument and method | |
| CN103954946A (en) | T/R module debugging instrument | |
| CN105371742A (en) | Bushing tap pulse signal injection method-based transformer winding deformation detection device and method | |
| EP2447724B1 (en) | Method for implementing electromagnetic anti-interference filter impedance matching and measuring system thereof | |
| CN108089053B (en) | Excitation self-test circuit | |
| CN105785300A (en) | Distributed capacitive equipment online monitoring and calibration device and field calibration method based on device | |
| CN103970174B (en) | A kind of TR assembly debugging instrument power control circuit | |
| CN103954871B (en) | A kind of T/R components debugging instrument failure alarm circuit | |
| CN204214944U (en) | A kind of general radio frequency condition monitoring and fault diagnosis warning device | |
| CN210894669U (en) | Metering error wiring simulation training device | |
| CN105553580B (en) | A kind of detection method | |
| CN105510934A (en) | GNSS module detection system and GNSS module detection method | |
| CN111044786A (en) | Insulation monitor | |
| CN111505557B (en) | Portable lightning arrester on-site checking device and method for on-line monitoring device | |
| CN213023527U (en) | On-spot calibration equipment of portable arrester on-line monitoring device | |
| CN104062673A (en) | Nuclear analyzer self-diagnosis system | |
| CN203204051U (en) | Portable capacitance current tester | |
| CN103675550A (en) | General performance test load box for car radio cassette player | |
| CN104330794A (en) | SAR echo simulator synchronization device and synchronization method | |
| CN204129514U (en) | A kind of detection device for electronic control unit based on FlexRay bus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |