CN215526451U - Vehicle-mounted camera hardware diagnosis device - Google Patents
Vehicle-mounted camera hardware diagnosis device Download PDFInfo
- Publication number
- CN215526451U CN215526451U CN202121869625.3U CN202121869625U CN215526451U CN 215526451 U CN215526451 U CN 215526451U CN 202121869625 U CN202121869625 U CN 202121869625U CN 215526451 U CN215526451 U CN 215526451U
- Authority
- CN
- China
- Prior art keywords
- camera
- photosensitive module
- vehicle
- trigger signal
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a vehicle-mounted camera hardware diagnosis device, which comprises: the temperature detection unit is fixed beside the camera photosensitive module, is used for detecting the temperature of the camera photosensitive module in real time and can output an over-temperature fault trigger signal to the camera photosensitive module; the voltage detection unit is arranged at the power input end of the camera photosensitive module, is used for detecting the voltage input into the camera photosensitive module in real time, and can output an overvoltage fault trigger signal or an undervoltage fault trigger signal to the camera photosensitive module; the camera photosensitive module receives the over-temperature fault trigger signal, the over-voltage fault trigger signal or the under-voltage fault trigger signal and outputs a fault alarm signal to the relay unit; the relay unit is connected with the camera photosensitive module and the automatic driving controller and used for outputting a fault alarm signal to the automatic driving controller. The vehicle-mounted camera has the capability of diagnosing the hardware fault of the vehicle-mounted camera, and the safety and the reliability of the camera sensor can be improved to the maximum extent.
Description
Technical Field
The utility model relates to the field of automobiles, in particular to a vehicle-mounted camera hardware diagnosis device.
Background
With the progress of the times, the automobile industry develops at a rapid speed, and intelligent driving represents a great trend of the development of modern automobile technology and industry. As smart driving technology becomes more mature and increasingly popular for commercial use, smart driving and ADAS testing are beginning to become more attractive. In the current stage, a common scheme of the intelligent driving and ADAS test acquisition system is to sense the environment through a vehicle-mounted camera and other sensors. With the popularity of vehicles with intelligent driving and ADAS systems, cameras on existing vehicles have become a common configuration. A commonly used vehicle-mounted camera includes numerous sub-modules, such as a lens, an image sensor, an image processor, an image data serializer, and the like. The image signal is further amplified by an analog signal generated by photoelectric conversion to generate a corresponding digital signal of each frame of image, and then the digital signal is transmitted to a controller through a deserializer to be subjected to image processing and final target object and scene recognition.
The camera products meeting a certain functional safety level in the market are rare at present, the reason is that the design of the self-driving controller and the design of the sensor are independently divided, so that the complete requirement for the camera is not met, the data input by the camera cannot reach the functional safety level at present, the functional safety requirement for the camera is brought to the point of the integrity of the system according to the current situation of the industry, and the camera is developed according to the requirement, so that the hardware fault coverage rate of the camera can reach the functional safety level,
for example, if ASIL-B is to be achieved, the hardware failure rate is required to be 100FIT (FIT 10 × 9H) or less. The camera hardware has the capability of carrying out related hardware testing during the starting and normal operation periods, and can inform the self-driving controller of the hardware fault diagnosis state in a peripheral communication mode, and the self-driving controller can adopt corresponding safety response aiming at different faults, so that the safety and the reliability of data input by a camera sensor are improved to the maximum extent.
SUMMERY OF THE UTILITY MODEL
In the summary section, a series of simplified form concepts are introduced, which are simplifications of the prior art in this field, and which will be further detailed in the detailed description section. The inventive content of the present invention is not intended to define key features or essential features of the claimed solution, nor is it intended to be used to limit the scope of the claimed solution.
The utility model aims to provide a vehicle-mounted camera hardware diagnosis device which can detect the working temperature and the working voltage of a vehicle-mounted camera in real time and output a corresponding fault trigger signal to an automatic driving controller.
In order to solve the above technical problem, the present invention provides a vehicle-mounted camera hardware diagnosis apparatus, comprising:
the temperature detection unit is fixed beside the camera photosensitive module, is used for detecting the temperature of the camera photosensitive module in real time, and can output an over-temperature fault trigger signal to the camera photosensitive module;
the voltage detection unit is arranged at the power supply input end of the camera photosensitive module, is used for detecting the voltage input into the camera photosensitive module in real time, and can output an overvoltage fault trigger signal or an undervoltage fault trigger signal to the camera photosensitive module;
the camera photosensitive module receives the over-temperature fault trigger signal, the over-voltage fault trigger signal or the under-voltage fault trigger signal and outputs a fault alarm signal to the relay unit;
and the relay unit is connected with the camera photosensitive module and the automatic driving controller and is used for outputting a fault alarm signal to the automatic driving controller.
Optionally, the vehicle-mounted camera hardware diagnosis device is further improved, and the temperature detection unit is a temperature detection circuit or a temperature sensor. Such as a digital temperature measuring chip DS18B20, a platinum resistor, an NTC thermistor, an LM35 temperature sensor, etc.
Optionally, the vehicle-mounted camera hardware diagnosis device is further improved, and the over-temperature fault trigger signal is a high-level signal or a low-level signal.
Optionally, the hardware diagnostic device of the vehicle-mounted camera is further improved, and the voltage detection unit is a voltage detector, a voltage monitor, a voltage detection chip or a voltage detection circuit.
Optionally, the hardware diagnosis device for the vehicle-mounted camera is further improved, and the overvoltage fault trigger signal or the undervoltage fault trigger signal is a high-level signal or a low-level signal.
Optionally, the vehicle-mounted camera hardware diagnosis device is further improved, and the relay unit is a deserializer.
Optionally, the vehicle-mounted camera hardware diagnosis device is further improved, and the temperature detection unit and the voltage detection unit can be integrated in a camera shell.
Optionally, the vehicle-mounted camera hardware diagnosis device is further improved, and the temperature detection unit and the voltage detection unit are connected with the relay unit through a vehicle-mounted network.
Optionally, the vehicle-mounted camera hardware diagnosis device is further improved, and the vehicle-mounted network is a vehicle-mounted CAN network or a vehicle-mounted Ethernet network.
According to the utility model, the temperature detection unit and the voltage detection unit are added to the camera photosensitive module to serve as real-time diagnosis hardware, and once the temperature detection unit and the voltage detection unit diagnose the hardware fault, the method comprises the following steps: when the input voltage is abnormal (overvoltage/undervoltage) and the temperature is abnormal (overtemperature), an overtemperature fault trigger signal, an overvoltage fault trigger signal or an undervoltage fault trigger signal can be output to pull up a GPIO pin of the camera photosensitive module to form a fault alarm signal, and then the fault alarm signal is output to the automatic driving controller through the deserializer.
The vehicle-mounted camera hardware diagnosis device enables the vehicle-mounted camera to have self hardware fault diagnosis capability in the camera photosensitive module, realizes active alarm when voltage abnormity or temperature abnormity occurs, enables the camera hardware to have related hardware test capability during starting and normal operation, and can inform the self hardware fault diagnosis state to the automatic driving controller in a peripheral communication mode (vehicle-mounted network), and the automatic driving controller can adopt corresponding safety response aiming at different faults, thereby improving the safety and reliability of the camera sensor to the maximum extent.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification. The drawings are not necessarily to scale, however, and may not be intended to accurately reflect the precise structural or performance characteristics of any given embodiment, and should not be construed as limiting or restricting the scope of values or properties encompassed by exemplary embodiments in accordance with the utility model. The utility model will be described in further detail with reference to the following detailed description and accompanying drawings:
FIG. 1 is a schematic diagram of the present invention.
Description of the reference numerals
Camera photosensitive module 3
Camera casing 6
Fault alarm signal A
The supply current B.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and technical effects of the present invention will be fully apparent to those skilled in the art from the disclosure in the specification. The utility model is capable of other embodiments and of being practiced or of being carried out in various details, and its several details are capable of modifications in various obvious respects, all without departing from the spirit and scope of the utility model. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. The following exemplary embodiments of the present invention may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the technical solutions of these exemplary embodiments to those skilled in the art.
A first embodiment;
referring to fig. 1, only the portion related to the present invention is described in fig. 1, and other constituent modules of the vehicle-mounted camera do not relate to the technical problem to be solved by the present invention, and therefore are omitted. It should be noted that, the vehicle-mounted camera in the present invention refers to any one of the cameras in the prior art that can be applied to an intelligent driving vehicle as a sensor, and optionally includes all the components of any one of the cameras in the prior art. The utility model provides a vehicle-mounted camera hardware diagnosis device, which comprises:
the temperature detection unit 1 is fixed beside the camera photosensitive module 3 and only needs to be fixed in the camera shell 6, the actual position can be selected according to the internal space of the camera shell 6, the temperature detection unit is used for detecting the temperature of the camera photosensitive module 3 in real time, and the temperature detection unit can output an over-temperature fault trigger signal to the camera photosensitive module 3;
the voltage detection unit 2 is arranged at the power supply input end of the camera photosensitive module 3, is used for detecting the voltage input into the camera photosensitive module 3 in real time, and can output an overvoltage fault trigger signal or an undervoltage fault trigger signal to the camera photosensitive module 3;
the camera photosensitive module 3 receives the over-temperature fault trigger signal, the over-voltage fault trigger signal or the under-voltage fault trigger signal and outputs a fault alarm signal to the relay unit 4;
a relay unit 4 connected to the camera photosensitive module 3 and an automatic driving controller (not shown) and configured to output a failure warning signal to the automatic driving controller;
for ease of understanding, the camera power chip 5 is exemplarily depicted in fig. 1.
A second embodiment;
continuing to refer to fig. 1, the present invention provides an on-board camera hardware diagnostic apparatus, comprising:
the temperature detection unit 1 is fixed beside the camera photosensitive module 3 and only needs to be fixed in the camera shell 6, the actual position can be selected according to the internal space of the camera shell 6, a temperature detection circuit or a temperature sensor is adopted, the temperature detection unit is used for detecting the temperature of the camera photosensitive module 3 in real time, and the temperature detection unit can output a temperature fault trigger signal of an over-high level signal or a low level signal to the camera photosensitive module 3;
the voltage detection unit 2 is arranged at the power supply input end of the camera photosensitive module 3, adopts a voltage detector, a voltage monitor, a voltage detection chip or a voltage detection circuit, is used for detecting the voltage input into the camera photosensitive module 3 in real time, and can output an overvoltage fault trigger signal or an undervoltage fault trigger signal of a high level signal or a low level signal to the camera photosensitive module 3;
the camera photosensitive module 3 receives the over-temperature fault trigger signal, the overvoltage fault trigger signal or the undervoltage fault trigger signal and outputs a fault alarm signal of a high level signal or a low level signal to the relay unit 4;
a relay unit 4, which is a deserializer, and which connects the camera photosensitive module 3 and an automatic driving controller (not shown in the figure), and which is configured to output a failure alarm signal to the automatic driving controller;
for ease of understanding, the camera power chip 5 is exemplarily depicted in fig. 1.
A third embodiment;
continuing to refer to fig. 1, the present invention provides an on-board camera hardware diagnostic apparatus, comprising:
the temperature detection unit 1 is fixed beside the camera photosensitive module 3 and only needs to be fixed in the camera shell 6, the actual position can be selected according to the internal space of the camera shell 6, a temperature detection circuit or a temperature sensor is adopted, the temperature detection unit is used for detecting the temperature of the camera photosensitive module 3 in real time, and the temperature detection unit can output a temperature fault trigger signal of an over-high level signal or a low level signal to the camera photosensitive module 3;
the voltage detection unit 2 is arranged at the power supply input end of the camera photosensitive module 3, adopts a voltage detector, a voltage monitor, a voltage detection chip or a voltage detection circuit, is used for detecting the voltage input into the camera photosensitive module 3 in real time, and can output an overvoltage fault trigger signal or an undervoltage fault trigger signal of a high level signal or a low level signal to the camera photosensitive module 3;
the camera photosensitive module 3 receives the over-temperature fault trigger signal, the overvoltage fault trigger signal or the undervoltage fault trigger signal and outputs a fault alarm signal of a high level signal or a low level signal to the relay unit 4;
a relay unit 4, which is a deserializer, and which connects the camera photosensitive module 3 and an automatic driving controller (not shown in the figure), and which is configured to output a failure alarm signal to the automatic driving controller;
the temperature detection unit 1, the voltage detection unit 2, the camera photosensitive module 3, the relay unit 4 and the camera power supply chip 5 are all integrated in the camera housing 6.
The temperature detection unit and the voltage detection unit are connected with the relay unit through a vehicle-mounted network, and the vehicle-mounted network is a vehicle-mounted CAN network or a vehicle-mounted Ethernet.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The present invention has been described in detail with reference to the specific embodiments and examples, but these are not intended to limit the present invention. Many variations and modifications may be made by one of ordinary skill in the art without departing from the principles of the present invention, which should also be considered as within the scope of the present invention.
Claims (10)
1. The utility model provides an on-vehicle camera hardware diagnostic device which characterized in that includes:
the temperature detection unit is fixed beside the camera photosensitive module, is used for detecting the temperature of the camera photosensitive module in real time, and can output an over-temperature fault trigger signal to the camera photosensitive module;
the voltage detection unit is arranged at the power supply input end of the camera photosensitive module, is used for detecting the voltage input into the camera photosensitive module in real time, and can output an overvoltage fault trigger signal or an undervoltage fault trigger signal to the camera photosensitive module;
the camera photosensitive module receives the over-temperature fault trigger signal, the over-voltage fault trigger signal or the under-voltage fault trigger signal and outputs a fault alarm signal to the relay unit;
and the relay unit is connected with the camera photosensitive module and the automatic driving controller and is used for outputting a fault alarm signal to the automatic driving controller.
2. The on-vehicle camera hardware diagnostic apparatus according to claim 1, characterized in that: the temperature detection unit is a temperature detection circuit or a temperature sensor.
3. The on-vehicle camera hardware diagnostic apparatus according to claim 1, characterized in that: the over-temperature fault trigger signal is a high level signal or a low level signal.
4. The on-vehicle camera hardware diagnostic apparatus according to claim 1, characterized in that: the voltage detection unit is a voltage detector, a voltage monitor, a voltage detection chip or a voltage detection circuit.
5. The on-vehicle camera hardware diagnostic apparatus according to claim 1, characterized in that: the overvoltage fault trigger signal or the undervoltage fault trigger signal is a high level signal or a low level signal.
6. The on-vehicle camera hardware diagnostic apparatus according to claim 1, characterized in that: the fault alarm signal is a high level signal or a low level signal.
7. The on-vehicle camera hardware diagnostic apparatus according to claim 1, characterized in that: the relay unit is a deserializer.
8. The on-vehicle camera hardware diagnostic apparatus according to claim 1, characterized in that: the temperature detection unit and the voltage detection unit can be integrated in the camera housing.
9. The on-vehicle camera hardware diagnostic apparatus according to claim 1, characterized in that: the temperature detection unit and the voltage detection unit are connected with the relay unit through a vehicle-mounted network.
10. The on-vehicle camera hardware diagnostic apparatus according to claim 9, characterized in that: the vehicle-mounted network is a vehicle-mounted CAN network or a vehicle-mounted Ethernet network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121869625.3U CN215526451U (en) | 2021-08-11 | 2021-08-11 | Vehicle-mounted camera hardware diagnosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121869625.3U CN215526451U (en) | 2021-08-11 | 2021-08-11 | Vehicle-mounted camera hardware diagnosis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215526451U true CN215526451U (en) | 2022-01-14 |
Family
ID=79789393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121869625.3U Active CN215526451U (en) | 2021-08-11 | 2021-08-11 | Vehicle-mounted camera hardware diagnosis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215526451U (en) |
-
2021
- 2021-08-11 CN CN202121869625.3U patent/CN215526451U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102176158B (en) | Method and system for diagnosing vehicle data by using mobile terminal | |
| CN111929600A (en) | Storage battery diagnosis monitoring method, monitoring system, vehicle and Internet of vehicles cloud platform | |
| CN114384892A (en) | Test equipment, state detection method and device of vehicle control unit and electronic equipment | |
| US8965716B2 (en) | Method and apparatus for testing at least one temperature sensor in a vehicle | |
| CN215526451U (en) | Vehicle-mounted camera hardware diagnosis device | |
| CN108399757B (en) | Battery car safety monitoring tamper-proof method | |
| CN106959686A (en) | A kind of intelligent remote diagnostic system and method | |
| CN111142504B (en) | Bus detection device and method | |
| CN104914376A (en) | Digital circuit state detection circuit and digital circuit state detection method | |
| CN112414447A (en) | Method and system for remotely diagnosing sensor fault | |
| KR20130008702A (en) | Apparatus for monitoring vehicles | |
| CN109586788A (en) | Monitoring system method for diagnosing faults, device, computer equipment and storage medium | |
| CN114523918A (en) | Vehicle speed signal detection method and device, mobile terminal and storage medium | |
| CN213544769U (en) | Power battery current acquisition device | |
| CN110580037B (en) | UART communication system and vehicle-mounted equipment | |
| CN209921228U (en) | Tractor electrical box with self fault diagnosis function | |
| CN110350473B (en) | Control circuit, method and device | |
| CN206421224U (en) | Simple type vehicle trouble-shooter | |
| CN219843656U (en) | Test device of vehicle-mounted camera deserializing circuit | |
| CN103618182A (en) | Obd data connecting line | |
| CN112882456B (en) | OBD equipment | |
| CN115326400B (en) | Fault diagnosis method of aircraft engine surge detection system and electronic equipment | |
| JPH09126954A (en) | Electronic control device for automobile | |
| CN214335550U (en) | Vehicle state detection system | |
| CN116991647B (en) | Mask star detector interface test equipment, method and device and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |