CN113103869A - Vehicle clock synchronous display method - Google Patents

Vehicle clock synchronous display method Download PDF

Info

Publication number
CN113103869A
CN113103869A CN202110329349.XA CN202110329349A CN113103869A CN 113103869 A CN113103869 A CN 113103869A CN 202110329349 A CN202110329349 A CN 202110329349A CN 113103869 A CN113103869 A CN 113103869A
Authority
CN
China
Prior art keywords
time
central control
network
display
screen
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
Application number
CN202110329349.XA
Other languages
Chinese (zh)
Inventor
张家如
周宏伟
李晓伟
侯晓峰
李博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dayun Automobile Co Ltd
Original Assignee
Dayun Automobile Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dayun Automobile Co Ltd filed Critical Dayun Automobile Co Ltd
Priority to CN202110329349.XA priority Critical patent/CN113103869A/en
Publication of CN113103869A publication Critical patent/CN113103869A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/29—Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/80—Arrangements for controlling instruments
    • B60K35/81—Arrangements for controlling instruments for controlling displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/85—Arrangements for transferring vehicle- or driver-related data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R20/00—Setting the time according to the time information carried or implied by the radio signal
    • G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
    • G04R20/04—Tuning or receiving; Circuits therefor
    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R20/00—Setting the time according to the time information carried or implied by the radio signal
    • G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
    • G04R20/06—Decoding time data; Circuits therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/18—Information management
    • B60K2360/184—Displaying the same information on different displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/583—Data transfer between instruments

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Electric Clocks (AREA)

Abstract

The invention relates to a vehicle clock synchronous display method. The technical problem to be solved is how to ensure that the time display of each display screen of the vehicle is accurate and consistent. The method comprises the following steps: (1) the vehicle-mounted T-BOX is internally provided with a 4G telephone card and connected with a GPS antenna, the central control large screen is connected with the T-BOX through a USB1, and the central control large screen is also connected with an instrument through a USB 2; the T-BOX analyzes time information through 4G and GPS to obtain time 1, the time 1 is sent to a CAN network, and a large central control screen and an instrument acquire the time 1 through the CAN network and display the time 1 on a screen; (2) when the time signal on the CAN network is lost, the central control large screen acquires the time information of the 4G and GPS signals through the USB1 and carries out time analysis to obtain time 2, the central control large screen displays the analysis time after the analysis is successful, and simultaneously the time 2 is synchronously transmitted to the instrument through the USB2 to be displayed.

Description

Vehicle clock synchronous display method
Technical Field
The invention relates to the technical field of automobile time display, in particular to a synchronous display method for a vehicle clock.
Background
With the development of automotive electronic technology, the number of vehicle-mounted display screens is increasing, each display screen generally has a time display function, time timing comes from a crystal oscillator, the frequency value of each crystal oscillator is deviated from a nominal value, so that the time of each module is slightly different, errors are accumulated more and more along with the lapse of time, and finally the screen display time is inconsistent, so that customer complaints are caused, and inconvenience is brought to the work and life of customers.
Disclosure of Invention
The technical problem to be solved by the invention is how to ensure that the time display of each display screen of the vehicle is accurate and consistent, and the invention provides a scheme which can ensure that the vehicle obtains accurate time and can transmit the time to other display units of the whole vehicle.
The invention is realized by adopting the following technical scheme: a vehicle clock synchronous display method comprises the following steps: (1) the vehicle-mounted T-BOX is internally provided with a 4G telephone card and connected with a GPS antenna, the central control large screen is connected with the T-BOX through a USB1, and the central control large screen is also connected with an instrument/other display screens through a USB 2; the T-BOX analyzes time information through 4G and GPS, the analyzed time is defined as time 1, the time 1 is sent to a CAN network, and a central control large screen, an instrument and/or other display screens acquire the time 1 through the CAN network and display the time 1 on the screen; (2) when the time signal on the CAN network is lost, the central control large screen acquires the time information of the 4G and GPS signals through the USB1 and carries out time analysis to obtain time 2, the central control large screen displays the analysis time after the analysis is successful, and simultaneously the time 2 is synchronously transmitted to the instrument and/or other display screens through the USB2 to be displayed.
The "meter and other display screens" mentioned above represent meters or meters and other display screens.
The existing vehicle-mounted T-BOX has the function of analyzing time through 4G signals and GPS signals; similarly, the existing central control large screen also has a function of analyzing time through a 4G signal and a GPS signal. The method and the device are equivalent to taking the network time as a standard, and the technical problem of inaccurate timing existing in the traditional vehicle-mounted timing crystal oscillator is avoided; meanwhile, the large central control screen is used as a backup system and provides backup time, so that the problem of how to display time when a time signal on the CAN network is lost is effectively solved.
The invention designs a method capable of receiving and analyzing network time, which analyzes and sends the network time to a whole vehicle local area network, other modules (instruments or other display screens) acquire time information through the local area network and display the time information on a screen of the other modules, and simultaneously, the single analysis time is considered to be wrong, and backup time (time 2) can be utilized to ensure that correct time is presented to a client.
Further, the specific method for analyzing the time 1 by the T-BOX according to the 4G network and the GPS signal in the step (1) is as follows: the T-BOX judges whether a 4G network exists or not, analyzes the time information of the 4G signal under the condition that the 4G network signal is normal, and sends the time information as time 1 to the CAN local area network; when the 4G network is disconnected, the T-BOX judges whether a GPS signal exists, when the GPS signal exists, the T-BOX analyzes the time information of the GPS signal and sends the time information to the CAN local area network as time 1, and when the GPS signal does not exist, the T-BOX does not send the time signal to the CAN local area network.
In the step (2), a specific method for analyzing the time 2 by the central control large screen through the 4G network of the USB1 and the GPS signal is as follows: the central control large screen judges whether a 4G network from the USB1 exists, and when the USB 14G network signal is normal, the time information analyzed by the 4G signal is used for self time display, and meanwhile, the time information is sent to the USB2 as time 2; when the 4G network is disconnected, the large central control screen judges whether a GPS signal exists, when the GPS signal exists, time information analyzed by the large central control screen through the GPS signal is used for displaying the time of the large central control screen, and meanwhile, the time information is sent to the USB2 as time 2.
According to the scheme, the problem that time information of each display screen is inconsistent due to different time sources is solved, the problem that time can still be normally displayed when a certain time source is lost is also solved, and the accuracy and the reliability of time display are guaranteed to the greatest extent.
Drawings
Fig. 1 shows a schematic diagram in time.
Fig. 2T-BOX time resolution flow chart.
Fig. 3 is a flow chart of large screen time resolution.
Fig. 4 is a flow chart of a large screen/meter time display.
Detailed Description
The specific implementation process is as follows:
1) firstly, the T-BOX analyzes time 1 according to the 4G network and the GPS signal, the implementation logic is shown in figure 2, the T-BOX judges whether the 4G network exists, the T-BOX analyzes the time information of the 4G signal under the condition that the 4G network signal is normal, and the time information is sent to the CAN local area network as time 1; when the 4G network is disconnected, the T-BOX judges whether a GPS signal exists, when the GPS signal exists, the T-BOX analyzes the time information of the GPS signal and sends the time information to the CAN local area network as time 1, and when the GPS signal does not exist, the T-BOX does not send the time signal to the CAN local area network.
2) The large screen analyzes time 2 through a 4G network of the USB1 and a GPS signal, the implementation logic is as shown in FIG. 3, the large screen judges whether the 4G network from the USB1 exists, when the USB 14G network signal is normal, the time information analyzed through the 4G signal by the large screen is used for self time display, and meanwhile, the time information is sent to the USB2 as time 2; when the 4G network is disconnected, the large screen judges whether a GPS signal exists, when the GPS signal exists, time information analyzed by the large screen through the GPS signal is used for displaying the time of the large screen, and meanwhile, the time information is sent to the USB2 as time 2; .
3) The large screen and the instrument display time based on time 1 on the CAN local area network and time 2 on the USB2, the display logic is shown in figure 4, firstly, the instrument and the large screen judge whether the CAN local area network has time 1, if yes, the large screen and the instrument directly display time according to the time 1; if the time 1 information large screen and the instrument do not exist, whether the USB2 has time 2 information or not is judged, if yes, time display is carried out according to the time 2, and if the time 1 information and the time 2 information do not have signals, the large screen and the instrument do not display the time.
Based on the scheme, the problem that time information of each display screen is inconsistent due to different time sources is solved, and the problem that time can still be normally displayed when a certain time source is lost is also solved, so that the accuracy and the reliability of time display are ensured to the greatest extent.

Claims (4)

1. A vehicle clock synchronous display method is characterized by comprising the following steps: (1) the vehicle-mounted T-BOX is internally provided with a 4G telephone card and connected with a GPS antenna, the central control large screen is connected with the T-BOX through a USB1, and the central control large screen is also connected with an instrument/other display screens through a USB 2; the T-BOX analyzes time information through 4G and GPS, the analyzed time is defined as time 1, the time 1 is sent to a CAN network, and a central control large screen, an instrument and/or other display screens acquire the time 1 through the CAN network and display the time 1 on the screen; (2) when the time signal on the CAN network is lost, the central control large screen acquires the time information of the 4G and GPS signals through the USB1 and carries out time analysis to obtain time 2, the central control large screen displays the analysis time after the analysis is successful, and simultaneously the time 2 is synchronously transmitted to the instrument and/or other display screens through the USB2 to be displayed.
2. The method for synchronously displaying the vehicle clock according to claim 1, wherein the specific method for analyzing the time 1 by the T-BOX according to the 4G network and the GPS signal in the step (1) is as follows: the T-BOX judges whether a 4G network exists or not, analyzes the time information of the 4G signal under the condition that the 4G network signal is normal, and sends the time information as time 1 to the CAN local area network; when the 4G network is disconnected, the T-BOX judges whether a GPS signal exists, when the GPS signal exists, the T-BOX analyzes the time information of the GPS signal and sends the time information to the CAN local area network as time 1, and when the GPS signal does not exist, the T-BOX does not send the time signal to the CAN local area network.
3. The method for synchronously displaying the vehicle clock according to claim 1, wherein in the step (2), the specific method for analyzing the time 2 by the central control large screen through the 4G network of the USB1 and the GPS signal is as follows: the central control large screen judges whether a 4G network from the USB1 exists, and when the USB 14G network signal is normal, the time information analyzed by the 4G signal is used for self time display, and meanwhile, the time information is sent to the USB2 as time 2; when the 4G network is disconnected, the large central control screen judges whether a GPS signal exists, when the GPS signal exists, time information analyzed by the large central control screen through the GPS signal is used for displaying the time of the large central control screen, and meanwhile, the time information is sent to the USB2 as time 2.
4. The vehicle clock synchronous display method according to claim 1, wherein the central control large screen, the instruments and other display screens perform time display based on time 1 on the CAN area network and time 2 on the USB2, first, the central control large screen, the instruments and other display screens determine whether there is time 1 on the CAN area network, if so, the central control large screen, the instruments and other display screens perform time display directly according to time 1; if the time 1 information does not exist, the central control large screen, the instrument and/or other display screens judge whether the USB2 has time 2 information, and if so, the time is displayed according to the time 2; when the time 1 and the time 2 have no signals, the large central control screen, the instrument and other display screens do not display time.
CN202110329349.XA 2021-03-28 2021-03-28 Vehicle clock synchronous display method Pending CN113103869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110329349.XA CN113103869A (en) 2021-03-28 2021-03-28 Vehicle clock synchronous display method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110329349.XA CN113103869A (en) 2021-03-28 2021-03-28 Vehicle clock synchronous display method

Publications (1)

Publication Number Publication Date
CN113103869A true CN113103869A (en) 2021-07-13

Family

ID=76712910

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110329349.XA Pending CN113103869A (en) 2021-03-28 2021-03-28 Vehicle clock synchronous display method

Country Status (1)

Country Link
CN (1) CN113103869A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114261353A (en) * 2021-12-21 2022-04-01 宜宾凯翼汽车有限公司 Clock synchronization method for automobile instrument and automobile machine

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7149530B1 (en) * 1999-03-17 2006-12-12 Komatsu Ltd. Device for presenting information to mobile
CN202863334U (en) * 2012-10-31 2013-04-10 埃泰克汽车电子(芜湖)有限公司 Clock calibration system of motormeter
JP2016057581A (en) * 2014-09-12 2016-04-21 株式会社デンソー Display system
US20160161261A1 (en) * 2014-12-09 2016-06-09 Hyundai Motor Company Terminal, vehicle communicating with terminal and method of controlling the same
CN206920837U (en) * 2017-06-20 2018-01-23 中通客车控股股份有限公司 A kind of multiple clock sources correction device of vehicle-mounted TBOX systems
CN109017307A (en) * 2018-06-22 2018-12-18 福建省汽车工业集团云度新能源汽车股份有限公司 A kind of instrument management method, system and automobile solving automobile instrument failure
CN109327899A (en) * 2018-10-11 2019-02-12 恒大法拉第未来智能汽车（广东）有限公司 A kind of method, apparatus and system synchronization time of mobile unit synchronization time
CN109444929A (en) * 2018-09-11 2019-03-08 上海欣佳信息科技有限公司 Vehicle positioning system based on vehicle CAN bus and satellite positioning
CN208705949U (en) * 2018-08-29 2019-04-05 一汽解放汽车有限公司 A kind of autosynchronous meter information system of time data
CN110376628A (en) * 2019-07-12 2019-10-25 深圳市金溢科技股份有限公司 Car-mounted terminal and vehicle-mounted communication method based on LTE-V
CN209756811U (en) * 2019-04-25 2019-12-10 成都大运汽车集团有限公司 Combined automobile instrument
CN211032430U (en) * 2019-12-04 2020-07-17 大运汽车股份有限公司 Anterior tye structure of new energy automobile
US20200254875A1 (en) * 2019-02-11 2020-08-13 Volvo Car Corporation Remotely controlling electronic functions of a vehicle without an integrated touchscreen

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7149530B1 (en) * 1999-03-17 2006-12-12 Komatsu Ltd. Device for presenting information to mobile
CN202863334U (en) * 2012-10-31 2013-04-10 埃泰克汽车电子(芜湖)有限公司 Clock calibration system of motormeter
JP2016057581A (en) * 2014-09-12 2016-04-21 株式会社デンソー Display system
US20160161261A1 (en) * 2014-12-09 2016-06-09 Hyundai Motor Company Terminal, vehicle communicating with terminal and method of controlling the same
CN206920837U (en) * 2017-06-20 2018-01-23 中通客车控股股份有限公司 A kind of multiple clock sources correction device of vehicle-mounted TBOX systems
CN109017307A (en) * 2018-06-22 2018-12-18 福建省汽车工业集团云度新能源汽车股份有限公司 A kind of instrument management method, system and automobile solving automobile instrument failure
CN208705949U (en) * 2018-08-29 2019-04-05 一汽解放汽车有限公司 A kind of autosynchronous meter information system of time data
CN109444929A (en) * 2018-09-11 2019-03-08 上海欣佳信息科技有限公司 Vehicle positioning system based on vehicle CAN bus and satellite positioning
CN109327899A (en) * 2018-10-11 2019-02-12 恒大法拉第未来智能汽车（广东）有限公司 A kind of method, apparatus and system synchronization time of mobile unit synchronization time
US20200254875A1 (en) * 2019-02-11 2020-08-13 Volvo Car Corporation Remotely controlling electronic functions of a vehicle without an integrated touchscreen
CN209756811U (en) * 2019-04-25 2019-12-10 成都大运汽车集团有限公司 Combined automobile instrument
CN110376628A (en) * 2019-07-12 2019-10-25 深圳市金溢科技股份有限公司 Car-mounted terminal and vehicle-mounted communication method based on LTE-V
CN211032430U (en) * 2019-12-04 2020-07-17 大运汽车股份有限公司 Anterior tye structure of new energy automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114261353A (en) * 2021-12-21 2022-04-01 宜宾凯翼汽车有限公司 Clock synchronization method for automobile instrument and automobile machine

Similar Documents

Publication Publication Date Title
CN106850115B (en) A kind of Multi-channel data acquisition synchronization system and method
CN103399484B (en) A kind of local clock calibration steps and mobile unit
EP3734570A1 (en) Vehicle detection method, apparatus, device and readable storage medium
CN108037444B (en) GNSS PCBA automatic test system and application method thereof
RU2008104909A (en) METHOD FOR PROVIDING PRECISE DATE AND TIME IN THE CONTROL METER
CN102092477A (en) Device and method for automatic test and fault diagnosis of plane audio integrated system
CN111541990B (en) System, method and device for acquiring test data of vehicle-road cooperative system
CN106707736A (en) Automobile instrument clock precision measuring method and automobile instrument clock precision measuring device
CN114296105B (en) Method, device, equipment and storage medium for determining positioning fault cause
WO2005116673A2 (en) Local area network measurement test device
CN113103869A (en) Vehicle clock synchronous display method
CN112109549A (en) Instrument display method and system
EP3657149A1 (en) Vehicle control device, exhaust gas analysis system, vehicle control program, and vehicle control method
US7030853B2 (en) RF signal detecting apparatus for liquid crystal display and detecting method using the same
JPH0612419A (en) Taxi service management and taxi service state analyzing device and taxi service management system
CN109444803A (en) A kind of automatic calibration of electric energy meter system wiring column pressure test method and device
CN214900897U (en) Parameter detection and rapid calibration auxiliary device of NTP time server
CN101710430A (en) Method and equipment for testing response time of information system
CN114727253A (en) Multi-sensor time domain synchronization method and device, storage medium and terminal
CN114553331A (en) Method, device, processor and computer readable storage medium for realizing system self-test for radio monitoring station
CN107133465A (en) A kind of medical detection system, the means of communication and device
CN114301544A (en) Error code instrument with eye diagram function
CN113794528A (en) Time-frequency synchronous evaluation device and method for electric power 5G network time service
KR20130052268A (en) Wireless module appling time synchronization embedded blood glucose test meter system
CN114168633A (en) Data verification method and system for all-liquid-crystal instrument

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20210713