CN107402330A - TBOX external antennas measure loop and detection method - Google Patents
TBOX external antennas measure loop and detection method Download PDFInfo
- Publication number
- CN107402330A CN107402330A CN201710803229.2A CN201710803229A CN107402330A CN 107402330 A CN107402330 A CN 107402330A CN 201710803229 A CN201710803229 A CN 201710803229A CN 107402330 A CN107402330 A CN 107402330A
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- external antenna
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- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 15
- 230000006855 networking Effects 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
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- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The present invention relates to a kind of TBOX external antennas measure loop and detection method.Including vehicle-mounted TBOX, the vehicle-mounted TBOX includes MCU and realizing of be connected with the MCU remote communication module, the external antenna state detection circuit module that realization comes off to external antenna or short-circuit condition detects, the power module for being powered for whole circuit that vehicle-mounted TBOX communicated with car networking Platform Server；The external antenna state detection circuit module includes first to 3rd resistor, one end of first resistor is connected with power end, the other end of first resistor is connected to GND through second resistance, 3rd resistor, the tie point of first resistor and second resistance is connected to external antenna, and the tie point of second resistance and 3rd resistor is connected with MCU.State of the invention by detecting vehicle-mounted TBOX external antennas in real time, when external antenna occurs coming off or be short-circuit, vehicle-mounted T BOX are switched to built-in aerial, timely to handle failure, avoid being made troubles by antenna failure.
Description
Technical field
The present invention relates to a kind of TBOX external antennas measure loop and detection method.
Background technology
The equipment such as remote control module are fitted with current most of automobiles, are remotely controlled by 2G/3G/4G real-time performances
The function such as system and remote notification.When vehicle-mounted TBOX external antennas occur coming off or are short-circuit, remote control and remote notification
Etc. function it is possible that failure, or even when emergency occurs, it is necessary to when dialing E-CALL, it is also possible to cause dialing to fail,
Brought greater inconvenience to car owner.
The content of the invention
It is an object of the invention to provide a kind of TBOX external antennas measure loop and detection method, by detecting car in real time
The state of TBOX external antennas is carried, when external antenna occurs coming off or be short-circuit, vehicle-mounted T-BOX is switched to built-in aerial, so as to
Failure is timely handled, avoids being made troubles by antenna failure.
To achieve the above object, the technical scheme is that：A kind of TBOX external antennas measure loop, including it is vehicle-mounted
TBOX, the vehicle-mounted TBOX include MCU and what is be connected with the MCU realize that vehicle-mounted TBOX is communicated with car networking Platform Server
Remote communication module, realize external antenna is come off or short-circuit condition detection external antenna state detection circuit module, use
In the power module powered for whole circuit；The external antenna state detection circuit module includes first resistor R1, the second electricity
Resistance R2,3rd resistor R3, first resistor R1 one end are connected with power end VDD, and the first resistor R1 other end is through second resistance
The tie point that R2,3rd resistor R3 are connected to GND, first resistor R1 and second resistance R2 is connected to external antenna, second resistance
R2 is connected with 3rd resistor R3 tie point with MCU；The external antenna includes antenna, the 4th resistance R4, and antenna is through the 4th electricity
Resistance R4 is connected to GND, and antenna and the 4th resistance R4 tie point are connected to first resistor R1 and second resistance R2 tie point.
In an embodiment of the present invention, the antenna is 4G antennas.
In an embodiment of the present invention, the remote communication module is 2G/3G/4G communication modules.
Present invention also offers a kind of detection method based on TBOX external antenna measure loops described above, including such as
Lower step,
S1, start vehicle-mounted TBOX；
S2, MCU detect external antenna state detection circuit module input voltage value signal, and according to input voltage value Vant, sentence
Disconnected external antenna state, it is specific as follows：
（1）External antenna comes off
When external antenna comes off, Vant is calculated by R1, R2, R3：
（2）External antenna is shorted to GND
When external antenna is shorted to GND, Vant=0V；
（3）External antenna is shorted to 12V, VDD<12V
When external antenna is shorted to 12V, Vant is calculated by R2, R3：
（4）External antenna normally connects
When external antenna normally connects, Vant voltages are calculated by R1, R2, R3, R4：
Because R1, R2, R3, R4 are given value, according to input voltage value Vant, MCU can determine whether which kind of shape external antenna is in
State.
In an embodiment of the present invention, come off or short-circuit condition if judging that external antenna is in, also wrapped after step S2
Include following steps,
S3, MCU switching antenna are built-in aerial, then pass through remote communication module report and alarm information to car networking platform service
Device；
S4, car networking Platform Server issue APP of the warning information to car owner's mobile terminal, notify car owner's timely processing.
Compared to prior art, the invention has the advantages that：It is external that the present invention can detect vehicle-mounted TBOX in real time
The state of antenna, when external antenna occurs coming off or be short-circuit, vehicle-mounted T-BOX is switched to built-in aerial, passes through intelligent terminal APP
Car owner is notified, can also be diagnosed by 4S shops professional and equipment, timely to handle failure, avoided
Made troubles by antenna failure.
Brief description of the drawings
Fig. 1 is present system block diagram.
Fig. 2 is external antenna state detection circuit module circuit schematic of the present invention.
Embodiment
1-2 below in conjunction with the accompanying drawings, technical scheme is specifically described.
The present invention a kind of TBOX external antennas measure loop, including vehicle-mounted TBOX, the vehicle-mounted TBOX include MCU and with
The MCU connections realize remote communication module that vehicle-mounted TBOX communicated with car networking Platform Server, realized to external day
Line comes off or the external antenna state detection circuit module of short-circuit condition detection, the power module for being powered for whole circuit；
The external antenna state detection circuit module includes first resistor R1, second resistance R2,3rd resistor R3, first resistor R1's
One end is connected with power end VDD, and the first resistor R1 other end is connected to GND, the first electricity through second resistance R2,3rd resistor R3
Resistance R1 and second resistance R2 tie point is connected to external antenna, and second resistance R2 and 3rd resistor R3 tie point and MCU connect
Connect；The external antenna includes antenna, the 4th resistance R4, and antenna is connected to GND, antenna and the 4th resistance R4 through the 4th resistance R4
Tie point be connected to first resistor R1 and second resistance R2 tie point.
The antenna is 4G antennas.
The remote communication module is 2G/3G/4G communication modules.
Present invention also offers a kind of detection method based on TBOX external antenna measure loops described above, including such as
Lower step,
S1, start vehicle-mounted TBOX；
S2, MCU detect external antenna state detection circuit module input voltage value signal, and according to input voltage value Vant, sentence
Disconnected external antenna state, it is specific as follows：
（1）External antenna comes off
When external antenna comes off, Vant is calculated by R1, R2, R3：
（2）External antenna is shorted to GND
When external antenna is shorted to GND, Vant=0V；
（3）External antenna is shorted to 12V, VDD<12V
When external antenna is shorted to 12V, Vant is calculated by R2, R3：
（4）External antenna normally connects
When external antenna normally connects, Vant voltages are calculated by R1, R2, R3, R4：
Because R1, R2, R3, R4 are given value, according to input voltage value Vant, MCU can determine whether which kind of shape external antenna is in
State.
If judging that external antenna is in come off or short-circuit condition, also comprise the following steps after step S2,
S3, MCU switching antenna are built-in aerial, then pass through remote communication module report and alarm information to car networking platform service
Device；
S4, car networking Platform Server issue APP of the warning information to car owner's mobile terminal, notify car owner's timely processing.
It is below the specific implementation process of the present invention.
As shown in figure 1, TBOX external antennas measure loop of the present utility model, including a vehicle-mounted TBOX equipment, this is vehicle-mounted
TBOX equipment includes MCU, remote communication module, power management module, external antenna state detection circuit module, wherein：
MCU：Realize the management and control of each functional module of TBOX device interiors；
Remote communication module：Realize the information exchange of vehicle-mounted TBOX equipment and car networking Platform Server；
Power management module：For providing stable direct current supply to each functional module of vehicle-mounted TBOX equipment；
External antenna state detection circuit module：External antenna is come off for realization or the detection of short-circuit condition.
As shown in Fig. 2 be the circuit theory diagrams of external antenna state detection circuit module, wherein, external 4G antenna bags
Into MCU, MCU is judged by detecting ANT_ADC different magnitude of voltage Vant for R4 containing pull down resistor, ANT_ADC network connection
The different conditions of external antenna
1）External antenna comes off
When external antenna comes off, Vant voltages are calculated by R1, R2, R3：
2）External antenna is shorted to GND
When external antenna is shorted to GND, Vant magnitudes of voltage are as GND, equal to 0 volt；
3）External antenna is shorted to 12V（VDD<12V）
When external antenna is shorted to 12V, Vant voltages are calculated by R2, R3：
4）External antenna normally connects
When external antenna normally connects, Vant voltages are calculated by R1, R2, R3, R4：
When MCU detects that TBOX external antennas occur coming off or be short-circuit, vehicle-mounted T-BOX is switched to built-in aerial, telecommunication
Information is issued car networking Platform Server by module by 2G/3G/4G mobile communication networks, then is notified by intelligent terminal APP
To car owner, car owner is timely handled failure, can avoid making troubles due to antenna failure.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, caused function are made
During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.
Claims (5)
1. a kind of TBOX external antennas measure loop, including vehicle-mounted TBOX, it is characterised in that：The vehicle-mounted TBOX include MCU and
Realizing of being connected with the MCU remote communication module that vehicle-mounted TBOX communicated with car networking Platform Server, realize to external
Antenna comes off or the external antenna state detection circuit module of short-circuit condition detection, the power supply mould for being powered for whole circuit
Block；The external antenna state detection circuit module includes first resistor R1, second resistance R2,3rd resistor R3, first resistor
R1 one end is connected with power end VDD, and the first resistor R1 other end is connected to GND through second resistance R2,3rd resistor R3, the
One resistance R1 and second resistance R2 tie point are connected to external antenna, second resistance R2 and 3rd resistor R3 tie point with
MCU connections；The external antenna includes antenna, the 4th resistance R4, and antenna is connected to GND, antenna and the 4th through the 4th resistance R4
Resistance R4 tie point is connected to first resistor R1 and second resistance R2 tie point.
2. TBOX external antennas measure loop according to claim 1, it is characterised in that：The antenna is 4G antennas.
3. TBOX external antennas measure loop according to claim 1, it is characterised in that：The remote communication module is
2G/3G/4G communication modules.
A kind of 4. detection method based on any described TBOX external antenna measure loops of claim 1-3, it is characterised in that：
Comprise the following steps,
S1, start vehicle-mounted TBOX；
S2, MCU detect external antenna state detection circuit module input voltage value signal, and according to input voltage value Vant, sentence
Disconnected external antenna state, it is specific as follows：
（1）External antenna comes off
When external antenna comes off, Vant is calculated by R1, R2, R3：
（2）External antenna is shorted to GND
When external antenna is shorted to GND, Vant=0V；
（3）External antenna is shorted to 12V, VDD<12V
When external antenna is shorted to 12V, Vant is calculated by R2, R3：
（4）External antenna normally connects
When external antenna normally connects, Vant voltages are calculated by R1, R2, R3, R4：
Because R1, R2, R3, R4 are given value, according to input voltage value Vant, MCU can determine whether which kind of shape external antenna is in
State.
5. the detection method of TBOX external antennas measure loop according to claim 4, it is characterised in that：If judge external
Antenna, which is in, to come off or short-circuit condition, then also comprises the following steps after step S2,
S3, MCU switching antenna are built-in aerial, then pass through remote communication module report and alarm information to car networking platform service
Device；
S4, car networking Platform Server issue APP of the warning information to car owner's mobile terminal, notify car owner's timely processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710803229.2A CN107402330A (en) | 2017-09-08 | 2017-09-08 | TBOX external antennas measure loop and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710803229.2A CN107402330A (en) | 2017-09-08 | 2017-09-08 | TBOX external antennas measure loop and detection method |
Publications (1)
| Publication Number | Publication Date |
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| CN107402330A true CN107402330A (en) | 2017-11-28 |
Family
ID=60397920
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710803229.2A Pending CN107402330A (en) | 2017-09-08 | 2017-09-08 | TBOX external antennas measure loop and detection method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306695A (en) * | 2018-01-29 | 2018-07-20 | 西安蜂语信息科技有限公司 | Based reminding method and device |
| CN108845189A (en) * | 2018-07-03 | 2018-11-20 | 上海移远通信技术股份有限公司 | The detection circuit of wireless terminal and its antenna |
| CN110488102A (en) * | 2019-08-28 | 2019-11-22 | 深圳市朗仁科技有限公司 | Antenna falls off detection circuit |
| WO2020019781A1 (en) * | 2018-07-25 | 2020-01-30 | 中兴通讯股份有限公司 | Vehicle-mounted antitheft method and apparatus, device, and storage medium |
| WO2020052500A1 (en) * | 2018-09-12 | 2020-03-19 | 中兴通讯股份有限公司 | Vehicle-mounted telematics box (tbox) and antenna real-time switching method and device for vehicle-mounted tbox, and readable storage medium |
| CN111131513A (en) * | 2019-12-31 | 2020-05-08 | 惠州市德赛西威汽车电子股份有限公司 | Vehicle-mounted multimedia connection T-BOX network function detection system and method |
| CN111308388A (en) * | 2020-03-18 | 2020-06-19 | 东软睿驰汽车技术（沈阳）有限公司 | Antenna state detection device and method and electric automobile |
| CN113922833A (en) * | 2021-09-10 | 2022-01-11 | 青岛海信移动通信技术股份有限公司 | Terminal, radio frequency front end and antenna detection method |
| CN114285499A (en) * | 2021-11-29 | 2022-04-05 | 惠州市德赛西威汽车电子股份有限公司 | Detection system and detection method for vehicle-mounted TBOX external antenna |
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| CN203929959U (en) * | 2014-06-23 | 2014-11-05 | 厦门雅迅网络股份有限公司 | A kind of antenna of on-vehicle positioning terminal is opened short-circuit detecting device |
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| US20110256841A1 (en) * | 2010-04-16 | 2011-10-20 | Denso Corporation | Wireless communication apparatus having automatic antenna tuning function |
| CN101938685A (en) * | 2010-04-20 | 2011-01-05 | 惠州市德赛西威汽车电子有限公司 | Automatic diagnosis method of automobile sound loudspeaker and antenna |
| CN201993430U (en) * | 2011-01-21 | 2011-09-28 | 比亚迪股份有限公司 | Detection circuit for antenna connection state |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306695A (en) * | 2018-01-29 | 2018-07-20 | 西安蜂语信息科技有限公司 | Based reminding method and device |
| CN108845189A (en) * | 2018-07-03 | 2018-11-20 | 上海移远通信技术股份有限公司 | The detection circuit of wireless terminal and its antenna |
| CN110758317A (en) * | 2018-07-25 | 2020-02-07 | 中兴通讯股份有限公司 | Method, device, equipment and storage medium for realizing vehicle-mounted theft prevention |
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| CN110971313A (en) * | 2018-09-12 | 2020-04-07 | 中兴通讯股份有限公司 | Vehicle-mounted TBOX (tunnel boring machine) and real-time antenna switching method, device and readable storage medium thereof |
| WO2020052500A1 (en) * | 2018-09-12 | 2020-03-19 | 中兴通讯股份有限公司 | Vehicle-mounted telematics box (tbox) and antenna real-time switching method and device for vehicle-mounted tbox, and readable storage medium |
| US11923935B2 (en) | 2018-09-12 | 2024-03-05 | Zte Corporation | Vehicle-mounted telematics box (TBOX), antenna real-time switching method and apparatus, and non-transitory computer-readable storage medium |
| CN110488102A (en) * | 2019-08-28 | 2019-11-22 | 深圳市朗仁科技有限公司 | Antenna falls off detection circuit |
| CN111131513A (en) * | 2019-12-31 | 2020-05-08 | 惠州市德赛西威汽车电子股份有限公司 | Vehicle-mounted multimedia connection T-BOX network function detection system and method |
| CN111131513B (en) * | 2019-12-31 | 2022-09-16 | 惠州市德赛西威汽车电子股份有限公司 | Vehicle-mounted multimedia connection T-BOX network function detection system and method |
| CN111308388A (en) * | 2020-03-18 | 2020-06-19 | 东软睿驰汽车技术（沈阳）有限公司 | Antenna state detection device and method and electric automobile |
| CN113922833A (en) * | 2021-09-10 | 2022-01-11 | 青岛海信移动通信技术股份有限公司 | Terminal, radio frequency front end and antenna detection method |
| CN114285499A (en) * | 2021-11-29 | 2022-04-05 | 惠州市德赛西威汽车电子股份有限公司 | Detection system and detection method for vehicle-mounted TBOX external antenna |
| CN114285499B (en) * | 2021-11-29 | 2024-04-02 | 惠州市德赛西威汽车电子股份有限公司 | Detection system and detection method of vehicle-mounted TBOX external antenna |
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Application publication date: 20171128 |
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