CN114285499B - Detection system and detection method of vehicle-mounted TBOX external antenna - Google Patents
Detection system and detection method of vehicle-mounted TBOX external antenna Download PDFInfo
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Abstract
The invention belongs to the technical field of automobile auxiliary driving, and particularly relates to a detection system of an external antenna of a vehicle-mounted TBOX, which comprises a vehicle-mounted TBOX device and an external antenna device connected with the vehicle-mounted TBOX device; the vehicle-mounted TBOX device comprises an MCU control module, a signal diagnosis module, a power supply module, an antenna switching module and an on-board antenna module, wherein the signal diagnosis module, the power supply module and the antenna switching module are connected with the MCU control module; and the antenna switching module is a single-pole double-throw switch switching module, one end of the antenna switching module is connected with the MCU control module, and the other end of the antenna switching module is connected with the on-board antenna module or the external antenna device. The invention provides a detection system of an external antenna of a vehicle-mounted TBOX, which not only can effectively diagnose the abnormal state of the external antenna device, but also can effectively ensure the information interaction between the system and the external wireless communication, ensure the eCall function in the vehicle-mounted TBOX to be available at any time, and avoid the situation that an emergency call for help cannot be automatically dialed when a vehicle is in danger.
Description
Technical Field
The invention belongs to the technical field of automobile auxiliary driving, and particularly relates to a detection system and a detection method of a vehicle-mounted TBOX external antenna.
Background
The TBOX system assembled by the current vehicle basically realizes the information interaction of wireless communication by connecting a FAKRA antenna connector with a 4G antenna of the vehicle. In the mode of adopting the unique external antenna, once the connection of the external antenna and the system is abnormal or the external antenna itself is abnormal and can not normally communicate, the TBOX is taken as a communication carrier for emergency rescue of the eCall telephone, and particularly when a major accident occurs, if the emergency call can not be automatically dialed out, the progress of rescue can be delayed, and life or property loss can be caused if serious.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a detection system of a vehicle-mounted TBOX external antenna, which not only can effectively detect whether the abnormal state of the external antenna device is caused by the external antenna device or the external environment when the external antenna device is abnormal, but also can automatically switch to a state connected with an onboard antenna module, effectively ensure the information interaction between the system and the external wireless communication, ensure the eCall function in the vehicle-mounted TBOX device to be available at any time, and avoid the situation that the rescue progress is delayed and even the life or property loss is caused by the fact that an emergency call cannot be automatically dialed when the vehicle is dangerous. The invention provides a detection method of an external antenna of a vehicle-mounted TBOX, which judges whether the working state of an external antenna device is normal or not by combining connection state diagnosis and transmission signal quality detection, and detects the reason causing the abnormality of the external antenna device by combining the transmission signal quality detection of the external antenna device and the transmission signal quality detection of an on-board antenna module in the process of the transmission signal quality detection.
The technical effects to be achieved by the invention are realized by the following technical scheme:
the detection system of the vehicle-mounted TBOX external antenna comprises a vehicle-mounted TBOX device and an external antenna device connected with the vehicle-mounted TBOX device; the vehicle-mounted TBOX device comprises an MCU control module; the signal diagnosis module, the power supply module and the antenna switching module are connected with the MCU control module; and an on-board antenna module connected with the antenna switching module; and the antenna switching module is a single-pole double-throw switch switching module, one end of the antenna switching module is connected with the MCU control module, and the other end of the antenna switching module is connected with the on-board antenna module or the external antenna device.
The external antenna device is used for realizing information interaction between the system and the outside wireless communication; the MCU control module is used for controlling and regulating the operation of each module in the vehicle-mounted TBOX device; the signal diagnosis module is used for detecting the signal transmission quality of the on-board antenna module and the external antenna device and judging whether the signal transmission signal quality of the on-board antenna module and the external antenna device is within a preset threshold range or not; the power supply module is used for supplying power to each device or module in the system, so that the normal operation of the system is ensured; the antenna switching module is used for realizing connection switching between the MCU control module and the on-board antenna module as well as between the MCU control module and the external antenna device; the on-board antenna module is used for being connected with the MCU control module when the quality of the transmission signal of the external antenna device is abnormal, so that the abnormal state of the external antenna device can be effectively detected, whether the abnormal state is caused by the external antenna device or an external environment can be effectively detected, the information interaction between the system and external wireless communication can be effectively ensured, the eCall function in the vehicle-mounted TBOX device can be ensured to be available at any time, and the situation that the rescue progress is delayed and even the life or property loss is caused because an emergency call cannot be automatically dialed when a vehicle is in danger is avoided.
Further, the vehicle-mounted TBOX device also comprises a network connection module which is connected with the MCU control module and used for further realizing the communication between the detection system and the outside.
Further, the network connection module comprises a WAN communication sub-module and/or a CAN communication sub-module.
The detection method of the vehicle-mounted TBOX external antenna comprises the following steps of: the MCU control module diagnoses the connection state of the external antenna device and judges whether the connection of the external antenna device and the vehicle-mounted TBOX device is normal or not; external antenna signal detection: the signal diagnosis module detects the quality of a transmission signal of an external antenna device connected with the antenna switching module and judges whether the quality of the transmission signal is within a preset threshold range; on-board and external antenna switching: the antenna switching module switches the connection with the external antenna device to the connection with the on-board antenna module or switches the connection with the on-board antenna module to the connection with the external antenna device; on-board antenna signal detection: the signal diagnosis module detects the quality of a transmission signal of the on-board antenna module connected with the antenna switching module and judges whether the quality of the transmission signal is within a preset threshold range; and (3) feedback of detection results: and the vehicle-mounted TBOX device feeds back the detection result to the information interaction center.
Further, in the on-board and external antenna switching step, when the MCU control module diagnoses that the connection state of the external antenna device is abnormal or the signal diagnosis module detects that the quality of transmission signals between the antenna switching module and the external antenna device is not in a preset threshold range, the antenna switching module switches the connection between the antenna switching module and the external antenna device and the connection between the antenna switching module and the on-board antenna module; when the signal diagnosis module detects that the quality of transmission signals of the antenna switching module, the external antenna device and the on-board antenna module are not in a preset threshold range, the antenna switching module switches the connection with the on-board antenna module to the connection with the external antenna device.
Further, in the external antenna signal detection and on-board antenna signal detection steps, the threshold range preset for the transmission signal quality is that the antenna signal quality CSQ is more than 18.
Further, in the step of feeding back the detection result, when the connection state of the external antenna device is normal and the signal diagnosis module detects that the quality of the transmission signal connected with the external antenna device by the antenna switching module is within a preset threshold range, the detection is ended, and the external antenna device is judged to be in a normal working state.
Further, in the step of feeding back the detection result, when the connection state of the external antenna device is normal, and the signal diagnosis module detects that the quality of the transmission signal connected with the external antenna device by the antenna switching module is not within the preset threshold range, but the quality of the transmission signal connected with the on-board antenna module is within the preset threshold range, the performance abnormality of the external antenna device is determined, and the abnormality detection result is fed back to the information interaction center.
Further, in the step of feeding back the detection result, when the connection state of the external antenna device is normal and the signal diagnosis module detects that the quality of transmission signals connected with the external antenna device and the on-board antenna module by the antenna switching module is not within a preset threshold range, the external antenna device is judged to be abnormal in performance caused by the external environment, and the connection between the external antenna device and the on-board antenna module is switched to the connection between the external antenna device and the antenna switching module.
Further, in the step of feeding back the detection result, when the MCU control module diagnoses that the connection state of the external antenna device is abnormal, the detection is ended, the antenna switching module automatically switches the connection with the external antenna device to the connection with the on-board antenna module, and the abnormal detection result is fed back to the information interaction center.
In summary, the present invention has at least the following advantages:
1. the detection system of the vehicle-mounted TBOX external antenna can effectively diagnose the abnormal state of the external antenna device, can effectively ensure the information interaction between the system and the external wireless communication, ensures the eCall function in the vehicle-mounted TBOX device to be available at any time, and avoids the situation that the rescue progress is delayed and even the life or property loss is caused because the emergency call can not be automatically dialed when the vehicle is dangerous.
2. The detection method of the vehicle-mounted TBOX external antenna can accurately and effectively detect the abnormal working state of the external antenna device, accurately detect the reason for causing the abnormality of the external antenna device and distinguish and alarm the abnormal working state of the external antenna device.
Drawings
FIG. 1 is a schematic block diagram of a detection system for an on-board TBOX external antenna in an embodiment of the invention;
fig. 2 is a flow chart of a method for detecting an external TBOX antenna in a vehicle according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are some, but not all, embodiments of the invention.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Example 1:
referring to fig. 1, the detection system of the vehicle-mounted TBOX external antenna in the present embodiment includes a vehicle-mounted TBOX device and an external antenna device connected to the vehicle-mounted TBOX device; the vehicle-mounted TBOX device comprises an MCU control module, a signal diagnosis module, a power supply module, an antenna switching module and an on-board antenna module, wherein the signal diagnosis module, the power supply module and the antenna switching module are connected with the MCU control module; and the antenna switching module is a single-pole double-throw switch switching module, one end of the antenna switching module is connected with the MCU control module, and the other end of the antenna switching module is connected with the on-board antenna module or the external antenna device.
In this embodiment, the external antenna device is used to implement information interaction between the system and external wireless communication; the MCU control module is used for controlling and regulating the operation of each module in the vehicle-mounted TBOX device; the signal diagnosis module is used for detecting the signal transmission quality of the on-board antenna module and the external antenna device and judging whether the signal transmission signal quality of the on-board antenna module and the external antenna device is within a preset threshold range; the power supply module is used for supplying power to each device or module in the system, so that the normal operation of the system is ensured; the antenna switching module is used for realizing connection switching between the MCU control module and the on-board antenna module as well as between the MCU control module and the external antenna device; the on-board antenna module is used for being connected with the MCU control module when the quality of the transmission signal of the external antenna device is abnormal, so that the abnormal state of the external antenna device can be effectively detected, whether the abnormal state is caused by the external antenna device or an external environment can be effectively detected, the information interaction between the system and the external wireless communication can be effectively ensured, the eCall function in the vehicle-mounted TBOX device can be ensured to be available at any time, and the situation that the rescue progress is delayed and even the life or property loss is caused because an emergency call cannot be automatically dialed when a vehicle is in danger is avoided.
Example 2:
referring to fig. 1, the detection system of the vehicle-mounted TBOX external antenna in the present embodiment includes a vehicle-mounted TBOX device and an external antenna device connected to the vehicle-mounted TBOX device; the vehicle-mounted TBOX device comprises an MCU control module, a signal diagnosis module, a power supply module, an antenna switching module, a network connection module and an on-board antenna module connected with the antenna switching module, wherein the signal diagnosis module, the power supply module, the antenna switching module and the network connection module are connected with the MCU control module; and the antenna switching module is a single-pole double-throw switch switching module, one end of the antenna switching module is connected with the MCU control module, and the other end of the antenna switching module is connected with the on-board antenna module or the external antenna device.
In this embodiment, functions implemented by the external antenna device, the MCU control module, the signal diagnosis module, the power supply module, the antenna switching module, and the on-board antenna module are the same as those of embodiment 1. The network connection module is used for further realizing the communication between the detection system and the outside and ensuring the effective proceeding of the wireless communication and the outside information interaction, and preferably comprises a WAN communication sub-module and a CAN communication sub-module.
Example 3:
referring to fig. 1, the detection system of the vehicle-mounted TBOX external antenna in the present embodiment includes a vehicle-mounted TBOX device and an external antenna device connected to the vehicle-mounted TBOX device; the vehicle-mounted TBOX device comprises an MCU control module, a signal diagnosis module, a power supply module, an antenna switching module, a network connection module and an on-board antenna module connected with the antenna switching module, wherein the signal diagnosis module, the power supply module, the antenna switching module and the network connection module are connected with the MCU control module; and the antenna switching module is a single-pole double-throw switch switching module, one end of the antenna switching module is connected with the MCU control module, and the other end of the antenna switching module is connected with the on-board antenna module or the external antenna device.
In this embodiment, functions implemented by the external antenna device, the MCU control module, the signal diagnosis module, the power supply module, the antenna switching module, and the on-board antenna module are the same as those of embodiment 1. The network connection module is used for further realizing the communication between the detection system and the outside and ensuring the effective proceeding of the wireless communication and the outside information interaction, and preferably, the network connection module is a WAN communication sub-module or a CAN communication sub-module.
Example 4:
the detection method of the vehicle-mounted TBOX external antenna in the embodiment is applied to the detection system of the vehicle-mounted TBOX external antenna in the embodiments 1-3, and comprises the following steps,
external antenna connection diagnosis: the MCU control module diagnoses the connection state of the external antenna device and judges whether the connection of the external antenna device and the vehicle-mounted TBOX device is normal or not;
external antenna signal detection: the signal diagnosis module detects the quality of a transmission signal of an external antenna device connected with the antenna switching module and judges whether the quality of the transmission signal is within a preset threshold range;
on-board and external antenna switching: the antenna switching module switches the connection with the external antenna device to the connection with the on-board antenna module or switches the connection with the on-board antenna module to the connection with the external antenna device;
on-board antenna signal detection: the signal diagnosis module detects the quality of a transmission signal of the on-board antenna module connected with the antenna switching module and judges whether the quality of the transmission signal is within a preset threshold range;
and (3) feedback of detection results: and the vehicle-mounted TBOX device feeds back the detection result to the information interaction center.
In the detection method of the vehicle-mounted TBOX external antenna in the embodiment, whether the working state of the external antenna device is normal is judged by combining connection state diagnosis and transmission signal quality detection, and in the process of transmission signal quality detection, the reason for causing the abnormality of the external antenna device is detected by combining transmission signal quality detection of the external antenna device and transmission signal quality detection of the on-board antenna module.
In the on-board and external antenna switching steps, when the MCU control module diagnoses that the connection state of the external antenna device is abnormal or the signal diagnosis module detects that the quality of transmission signals between the antenna switching module and the external antenna device is not in a preset threshold range, the antenna switching module switches the connection between the antenna switching module and the external antenna device and the connection between the antenna switching module and the on-board antenna module; when the signal diagnosis module detects that the quality of transmission signals of the antenna switching module, the external antenna device and the on-board antenna module are not in a preset threshold range, the antenna switching module switches the connection with the on-board antenna module to the connection with the external antenna device. Preferably, the predetermined threshold range of transmission signal quality is an antenna signal quality CSQ > 18.
In the detection result feedback step, the detection results are as follows:
(1) When the MCU control module diagnoses that the connection state of the external antenna device is normal and the signal diagnosis module detects that the transmission signal quality CSQ of the antenna switching module connected with the external antenna device is more than 18, the detection is ended, the external antenna device is judged to be in a normal working state, and the detection result can not be fed back to the information interaction center at the moment.
(2) When the MCU control module diagnoses that the connection state of the external antenna device is normal, and the signal diagnosis module detects that the transmission signal quality CSQ of the antenna switching module connected with the external antenna device is less than or equal to 18 and the transmission signal quality CSQ of the antenna switching module connected with the on-board antenna module is more than 18, the performance abnormality of the external antenna device is judged, an abnormality detection result is fed back to the information interaction center, and a worker at the information interaction center is informed of timely maintaining and replacing the external antenna device.
(3) When the MCU control module diagnoses that the connection state of the external antenna device is normal and the signal diagnosis module detects that the transmission signal quality CSQ of the antenna switching module, the external antenna device and the on-board antenna module are both more than 18, the external antenna device is judged to be abnormal in performance caused by the external environment, the antenna switching module switches the connection with the on-board antenna module to the connection with the external antenna device so as to maintain the normal operation of the system, and at the moment, the detection result of poor environmental signals can be fed back to the information interaction center.
(4) When the MCU control module diagnoses that the connection state of the external antenna device is abnormal, the detection is ended, the antenna switching module automatically switches the connection with the external antenna device to the connection with the on-board antenna module so as to maintain the normal operation of the system, and at the moment, the detection result of the abnormal connection state of the external antenna device can be fed back to the information interaction center.
According to the technical scheme of the embodiment, the detection system of the vehicle-mounted TBOX external antenna is provided, so that abnormal states of the external antenna device can be effectively diagnosed, information interaction between the system and the outside wireless communication can be effectively guaranteed, the eCall function in the vehicle-mounted TBOX device can be guaranteed to be available at any time, and the situation that rescue progress is delayed and life or property loss is even caused because an emergency call cannot be automatically dialed when a vehicle is in danger is avoided. The invention also provides a detection system of the vehicle-mounted TBOX external antenna, which not only can accurately and effectively detect the abnormal working state of the external antenna device, but also can accurately detect the reason causing the abnormality of the external antenna device and distinguish and alarm the abnormal working state of the external antenna device.
In the description of the present invention, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
While the invention has been described in conjunction with the specific embodiments above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, all such alternatives, modifications, and variations are included within the spirit and scope of the following claims.
Claims (6)
1. The detection method of the vehicle-mounted TBOX external antenna is characterized by comprising the following steps of: the MCU control module diagnoses the connection state of the external antenna device and judges whether the connection of the external antenna device and the vehicle-mounted TBOX device is normal or not;
external antenna signal detection: the signal diagnosis module detects the quality of a transmission signal of an external antenna device connected with the antenna switching module and judges whether the quality of the transmission signal is within a range of CSQ & gt18;
on-board and external antenna switching: the antenna switching module switches the connection with the external antenna device to the connection with the on-board antenna module or switches the connection with the on-board antenna module to the connection with the external antenna device;
on-board antenna signal detection: the signal diagnosis module detects the quality of the transmission signal of the on-board antenna module connected with the antenna switching module and judges whether the quality of the transmission signal is within a range of CSQ & gt18;
and (3) feedback of detection results: the vehicle-mounted TBOX device feeds back the detection result to the information interaction center;
in the detection result feedback step, when the connection state of the external antenna device is normal, and the signal diagnosis module detects that the transmission signal quality of the antenna switching module connected with the external antenna device is not in the CSQ & gt18 range, but the transmission signal quality of the antenna switching module connected with the on-board antenna module is in the CSQ & gt18 range, the performance abnormality of the external antenna device is judged, and the abnormality detection result is fed back to the information interaction center;
when the connection state of the external antenna device is normal and the signal diagnosis module detects that the quality of a transmission signal connected with the external antenna device by the antenna switching module is within a range of CSQ & gt18, ending the detection and judging that the external antenna device is in a normal working state;
when the connection state of the external antenna device is normal and the signal diagnosis module detects that the quality of transmission signals of the antenna switching module, which are connected with the external antenna device and the on-board antenna module, is not within the CSQ & gt18 range, the external antenna device is judged to be abnormal in performance caused by the external environment, and the antenna switching module switches the connection with the on-board antenna module to the connection with the external antenna device.
2. The method for detecting an external antenna of a vehicle TBOX according to claim 1, wherein in the on-board and external antenna switching steps, when the MCU control module diagnoses that the connection state of the external antenna device is abnormal or the signal diagnostic module detects that the quality of the transmission signal between the antenna switching module and the external antenna device is not within the range of CSQ > 18, the antenna switching module switches the connection with the external antenna device to the connection with the on-board antenna module;
when the signal diagnosis module detects that the transmission signal quality of the antenna switching module, the external antenna device and the on-board antenna module is not in the range of CSQ & gt 18, the antenna switching module switches the connection with the on-board antenna module to the connection with the external antenna device.
3. The method for detecting an external antenna for a vehicle-mounted TBOX according to claim 1, wherein in the step of feeding back the detection result, when the MCU control module diagnoses that the connection state of the external antenna device is abnormal, the detection is ended, the antenna switching module automatically switches the connection with the external antenna device to the connection with the on-board antenna module, and feeds back the abnormal detection result to the information interaction center.
4. A detection system suitable for use in a method of detecting an external TBOX antenna in a vehicle according to any of claims 1-3, comprising a vehicle-mounted TBOX device and an external antenna device connected to said vehicle-mounted TBOX device; wherein,
the vehicle-mounted TBOX device comprises an MCU control module;
the signal diagnosis module, the power supply module and the antenna switching module are connected with the MCU control module;
and an on-board antenna module connected with the antenna switching module;
and the antenna switching module is a single-pole double-throw switch switching module, one end of the antenna switching module is connected with the MCU control module, and the other end of the antenna switching module is connected with the on-board antenna module or the external antenna device.
5. The detection system of the detection method suitable for the on-vehicle TBOX external antenna according to claim 4, wherein the on-vehicle TBOX device further comprises a network connection module connected with the MCU control module for realizing communication between the detection system and the outside.
6. The detection system of claim 5, wherein the network connection module comprises a WAN communication sub-module and/or a CAN communication sub-module.
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| CN103095772A (en) * | 2011-11-04 | 2013-05-08 | 上海博泰悦臻网络技术服务有限公司 | Vehicle-mounted information system and communication method thereof and vehicle-mounted terminal |
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| CN107402330A (en) * | 2017-09-08 | 2017-11-28 | 慧翰微电子股份有限公司 | TBOX external antennas measure loop and detection method |
| 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 |
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- 2021-11-29 CN CN202111434378.9A patent/CN114285499B/en active Active
Patent Citations (4)
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| CN103095772A (en) * | 2011-11-04 | 2013-05-08 | 上海博泰悦臻网络技术服务有限公司 | Vehicle-mounted information system and communication method thereof and vehicle-mounted terminal |
| CN104570007A (en) * | 2013-10-22 | 2015-04-29 | 深圳市伊爱高新技术开发有限公司 | Communication antenna anti-damage circuit of vehicle-mounted GNSS (global navigation satellite system) terminal |
| CN107402330A (en) * | 2017-09-08 | 2017-11-28 | 慧翰微电子股份有限公司 | TBOX external antennas measure loop and detection method |
| 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 |
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