CN207457354U - TBOX external antenna measure loops - Google Patents
TBOX external antenna measure loops Download PDFInfo
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- CN207457354U CN207457354U CN201721145468.5U CN201721145468U CN207457354U CN 207457354 U CN207457354 U CN 207457354U CN 201721145468 U CN201721145468 U CN 201721145468U CN 207457354 U CN207457354 U CN 207457354U
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- resistor
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- external antenna
- vehicle
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Abstract
The utility model is related to a kind of TBOX external antennas measure loops.Including vehicle-mounted TBOX, the remote communication module that the vehicle-mounted TBOX communicates including MCU and the vehicle-mounted TBOX of realization being connected with the MCU with car networking Platform Server, the external antenna state detection circuit module that realization comes off to external antenna or short-circuit condition detects, the power module for powering for entire circuit；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.The utility model by detecting the states of vehicle-mounted TBOX external antennas in real time, and when external antenna occurs coming off or during 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 utility model is related to a kind of TBOX external antennas measure loops.
Background technology
The equipment such as remote control module are fitted on current most of automobiles, are remotely controlled by 2G/3G/4G real-time performances
The functions such as system and remote notification.When vehicle-mounted TBOX external antennas occur coming off or are short-circuit, remote control and remote notification
When functions it is possible that failure in addition when occur emergency, it is necessary to when dialing E-CALL, it is also possible to cause dialing fail,
It brings greater inconvenience to car owner.
The content of the invention
The purpose of this utility model is to provide a kind of TBOX external antennas measure loop, by detecting vehicle-mounted TBOX in real time
The state of external antenna, when external antenna occurs coming off or is short-circuit, vehicle-mounted T-BOX is switched to built-in aerial, so as to failure
It is timely handled, avoids being made troubles by antenna failure.
To achieve the above object, the technical solution of the utility model is：A kind of TBOX external antennas measure loop, including vehicle
TBOX is carried, the vehicle-mounted TBOX of realization that the vehicle-mounted TBOX includes MCU and is connected with the MCU is led to car networking Platform Server
The remote communication module of letter, realize come off to external antenna or the external antenna state detection circuit module of short-circuit condition detection,
For the power module powered for entire circuit.
In one embodiment of the utility model, the external antenna state detection circuit module includes the first to the 3rd electricity
Resistance, one end of first resistor are connected with power end, and the other end of first resistor is connected to GND through second resistance, 3rd resistor, the
One resistance and the tie point of second resistance are connected to external antenna, and the tie point of second resistance and 3rd resistor is connected with MCU.
In one embodiment of the utility model, the external antenna includes antenna, the 4th resistance, and antenna connects through the 4th resistance
It is connected to GND, the tie point of antenna and the 4th resistance is connected to the tie point of first resistor and second resistance.
In one embodiment of the utility model, the antenna is 4G antennas.
In one embodiment of the utility model, the remote communication module is 2G/3G/4G communication modules.
Compared to the prior art, the utility model has the advantages that：The utility model can detect vehicle-mounted in real time
The state of TBOX external antennas, when external antenna occurs coming off or is short-circuit, vehicle-mounted T-BOX is switched to built-in aerial, passes through intelligence
Energy terminal APP notifies car owner, can also be diagnosed by 4S shops professional and equipment, timely to be carried out to failure
Processing, avoids being made troubles by antenna failure.
Description of the drawings
Fig. 1 is Tthe utility model system block diagram.
Fig. 2 is the utility model external antenna state detection circuit module circuit schematic.
Specific embodiment
The technical solution of the utility model is specifically described in 1-2 below in conjunction with the accompanying drawings.
A kind of TBOX external antennas measure loop of the utility model, including vehicle-mounted TBOX, the vehicle-mounted TBOX includes MCU
And the vehicle-mounted TBOX of realization being connected with the MCU communicate with car networking Platform Server remote communication module, realize externally
Put the external antenna state detection circuit module, the power supply mould for powering for entire circuit that antenna comes off or short-circuit condition detects
Block.
The external antenna state detection circuit module includes first to 3rd resistor, one end of first resistor and power end
Connection, the other end of first resistor are connected to the tie point of GND, first resistor and second resistance through second resistance, 3rd resistor
It is connected to external antenna, the tie point of second resistance and 3rd resistor is connected with MCU.The external antenna includes antenna, the 4th
Resistance, antenna are connected to GND through the 4th resistance, and the tie point of antenna and the 4th resistance is connected to first resistor and second resistance
Tie point.The antenna is 4G antennas.
The remote communication module is 2G/3G/4G communication modules.
It is the specific implementation process of the utility model below.
As shown in Figure 1, the TBOX external antenna measure loops of the utility model, including a vehicle-mounted TBOX equipment, this is vehicle-mounted
TBOX equipment include MCU, remote communication module, power management module, external antenna state detection circuit module, wherein：
MCU：Realize the management and control of each function module inside TBOX equipment；
Remote communication module：Realize the information exchange of vehicle-mounted TBOX equipment and car networking Platform Server；
Power management module：For each function module of vehicle-mounted TBOX equipment to be given to provide stable direct current supply；
External antenna state detection circuit module：Realization comes off to external antenna or the detection of short-circuit condition.
As shown in Fig. 2, be the circuit diagram of external antenna state detection circuit module, wherein, external 4G antenna bags
Into MCU, MCU is judged by detecting the different voltages value Vant of ANT_ADC 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 voltage values 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 is short-circuit, vehicle-mounted T-BOX is switched to built-in aerial, remotely
Information is issued car networking Platform Server by communication module by 2G/3G/4G mobile communication networks, then passes through intelligent terminal APP
Notify car owner, car owner timely handles failure, can make troubles to avoid due to antenna failure.
The above are the preferred embodiment of the utility model, all changes made according to technical solutions of the utility model are produced
Function without departing from technical solutions of the utility model scope when, belong to the scope of protection of the utility model.
Claims (3)
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
Remote communication module that the vehicle-mounted TBOX of realization being connected with the MCU communicates with car networking Platform Server, realization are to external
Antenna comes off or the external antenna state detection circuit module of short-circuit condition detection, the power supply mould for powering for entire circuit
Block；The external antenna state detection circuit module includes first to 3rd resistor, and 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, and the tie point of first resistor and second resistance is connected to
The tie point of external antenna, second resistance and 3rd resistor is connected with MCU；The external antenna includes antenna, the 4th resistance, day
Line is connected to GND through the 4th resistance, and the tie point of antenna and the 4th resistance is connected to the tie point of first resistor and second resistance.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721145468.5U CN207457354U (en) | 2017-09-08 | 2017-09-08 | TBOX external antenna measure loops |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721145468.5U CN207457354U (en) | 2017-09-08 | 2017-09-08 | TBOX external antenna measure loops |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207457354U true CN207457354U (en) | 2018-06-05 |
Family
ID=62282645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721145468.5U Active CN207457354U (en) | 2017-09-08 | 2017-09-08 | TBOX external antenna measure loops |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207457354U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
-
2017
- 2017-09-08 CN CN201721145468.5U patent/CN207457354U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
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