TWM593955U - Optical signal transmission and receiving system for vehicle - Google Patents

Abstract

A vehicle optical signal transmission and reception system, which is mainly installed at the front end and the rear end of a vehicle, and can be used for signal transmission between vehicles. This creation can mainly capture the ambient light source by a light source extraction module Information and environmental image information with depth information, and then further identify whether there is a light source signal in the environmental light source information through the signal detection module, and the received light source signal can be read by the light signal processing module to form the light source information, In order to obtain the information to be conveyed by the passing vehicle, in addition, the own vehicle can encode the light signal information to be transmitted through the optical signal processing module, and then illuminate the external passing vehicle through the optical signal generating module, thereby, through the above The way of optical signal information transmission can effectively achieve the effect of signal transmission between vehicles.

Description

Car optical signal transmission and receiving system

An optical signal transmission and reception system for vehicles, in particular, an optical signal transmission and reception system for transmitting information between vehicles based on optical communication architecture and depth image information.

With the popularity of transportation, users can move to any destination at will, and in order to reach the destination safely, more and more manufacturers have begun to commit to driving and traffic safety, such as providing safety when driving For protection, some manufacturers have proposed a vehicle sensing system that uses the Global Positioning System (Global Positioning System, GPS). The vehicle sensing method of the conventional technology is to use each vehicle and the installed GPS, and then know that each road The distribution of a car, and then send the distribution of all cars on the road to all vehicles, so that each car can know the relative distance and driving speed of the surrounding vehicles. Although GPS can achieve the above purpose, GPS There will be a position error in use. Generally speaking, GPS will have a positioning error of 8~15 meters. Furthermore, GPS will be affected by shelters (such as tall buildings or mountain walls), so that the vehicle will have Accurate positioning is not possible in this section, so other cars received by the car in this section The distribution of vehicles is not consistent with the actual situation, which will cause the driver to misjudge the relative position of the surrounding vehicles; for example, in the case of the Republic of China Invention Patent No. I356011, a real-time driving collision avoidance warning system and method, Case No. I356011 uses GPS positioning to determine the relative position of surrounding vehicles. Case No. I356011 transmits the vehicle position to other vehicles through broadcast. This method will be limited by the errors caused by GPS and cannot be judged. The correct relative relationship between the two vehicles will also cause excessive packet competition and collision problems. In addition, US Patent No. US 7804423B2 (Real Time Traffic Aide) also describes a system and method for preventing vehicle collisions in real time. The case of US7804423B2 discloses the use of image recognition and other detection methods to identify the surrounding vehicles, and uses wireless transmission to transmit the position information of each vehicle to other vehicles, and the case of US7804423B2 is based on the aforementioned detection method to obtain the surroundings The location of the vehicle, but due to the occurrence of an emergency, the relative distance of the vehicle may change immediately, so that other vehicles cannot react immediately, which may cause safety concerns for vehicles coming in the rear, and use the aforementioned wireless transmission to carry out The method of information transmission is also prone to signal interference.

In view of the above-mentioned problems, based on years of experience in developing inter-vehicle information transmission systems, the author of the author studied and analyzed the system for transmitting information between vehicles traveling, and hoped to develop a method and system to solve the above problems; The main purpose of this creation is to provide an Point and direction of travel influence, a car optical signal transmission and reception system that can transmit information to each other.

In order to achieve the above-mentioned purpose, this creative optical signal transmission and receiving system for vehicles is mainly installed at the front end and the rear end of a vehicle, which can be used for signal transmission between vehicles. This creation can mainly be achieved by a light source. The acquisition module captures ambient light source information and images, and further identifies whether there is a light source signal in the ambient light source information through the signal detection module, and the received light source signal can be decoded by the light signal processing module to form the light source information for reading In order to obtain the information to be communicated by the vehicle, the own vehicle can encode the information of the optical signal to be sent through the optical signal processing module, and then illuminate the external vehicle through the optical signal generation module. The above-mentioned optical signal information transmission method can effectively achieve the effect of signal transmission between vehicles.

In order to enable your reviewing committee to clearly understand the purpose, technical features and effects of this creation, the following description is accompanied by illustrations, please refer to it.

10: Vehicle optical signal transmission and receiving system

10’: Car optical signal transmission and receiving system

101: central processing module

102: Database

103: Light source extraction module

104: Signal detection module

1031: Second light source extraction unit

105: Optical signal processing module

106: Optical signal transmitter module

11: Vehicle

1061: The first LED lamp array

12: Vehicle

1062: Second LED light array

13: Vehicle

1063: Third LED light array

14: Vehicle

111: Driving computer host

21: Ambient light source information detection steps

22: Steps for tracking the light source signal

23: Receive light source signal steps

24: Perform decoding steps

31: Steps to monitor vehicle condition

32: Steps to extract information from the database

33: Light source signal coding steps

34: Perform the light source signal sending steps

A: Light source signal

C: Vehicle condition information

D: Adjustment information

Figure 1 is a schematic diagram of the information receiving status of this creation.

Figure 2 is a schematic diagram of the system composition of this creation.

Figure 3 is a schematic diagram of the implementation of this creation (1).

Figure 4 is a schematic diagram of the implementation of this creation (2).

Figure 5 is a schematic diagram of the implementation of this creation (3).

Figure 6 is a schematic diagram of the implementation of this creation (4).

Figure 7 is a schematic diagram of the light source signal receiving steps of this creation.

Figure 8 is a schematic diagram of the light source signal emission steps of this creation.

Figure 9 is another embodiment (1) of this creation.

Figure 10 is another embodiment (2) of this creation.

Please refer to "Picture 1". The figure shows the schematic diagram of the information receiving status of the creation. For the implementation diagram (1), please refer to the "Picture 1". As shown in this figure, as mentioned above, this creative light The signal transmission and receiving systems (10, 10') are mainly installed at the front and rear ends of a vehicle 11, respectively, and form an information link with a driving computer host 111 in the vehicle 11, and the driving computer host 111 mainly monitors the vehicle condition of the vehicle 11 , Can instantly know the current vehicle condition of the vehicle 11, for example, it can detect the engine condition, tire pressure condition, and other electronic parts are operating normally, etc. Under normal conditions, the optical signal transmission and receiving system (10, 10') can be used to receive external vehicles The light source signal A is sent. The light source signal A contains the vehicle condition information of the vehicle. When the light signal transmission and reception system (10, 10') receives the light source signal A, the light signal transmission and reception system (10, 10 10') Complete the decoding operation, so that the driver of the vehicle 11 can know whether the vehicle sending the light source signal A has an emergency, such as a brake failure, etc., so that the driver of the vehicle 11 can make an immediate response, effective Improve overall driving safety.

Please refer to "Figure 2", which is a schematic diagram of the system composition of the creation, as shown in the optical signal transmission and receiving system 10, which mainly has a central processing module 101, and the central processing The module 101 forms an information link with a database 102, a light source extraction module 103, a signal detection module 104, an optical signal processing module 105, and an optical signal transmission module 106, respectively, where the central processing module Group 101 is used to run a vehicle optical signal transmission and receiving system, which can drive the operation of the above modules, and has functions such as logic operation, temporary storage of operation results, and storage of execution instruction positions. It can be, for example, a central processing unit (CPU) ); The database 102 is pre-stored with several pieces of vehicle condition information C. The vehicle condition information C is mainly information representing the current vehicle condition, such as insufficient tire pressure, brake failure or other vehicle condition information; the light source extraction module 103 can be Acquire environmental image information with depth information and receive all environmental light source information in the setting environment, and convert the environmental light source information into an electronic signal, which can be an optical sensor (Optical Sensors), for example, a photodiode Sensors (Photodiode Sensors), thermopile optical sensors (Thermopile Sensors) or pyroelectric optical sensors (Pyroelectric Sensors) and other optical sensors can also be photosensitive-coupled devices (Charge-coupled Device, CCD), complementary Type of metal oxide semiconductor active pixel sensor (CMOS Active pixel sensor) or a depth camera (Depth Camera); the signal detection module 104 can receive the electronic information of ambient light source information, by analyzing the electronic information Electrical characteristics, identify the light source signal with light source information, to exclude other light sources in the environment, to avoid the light signal transmission and receiving system 10 receiving other light sources to make wrong judgments and reduce processing burden, and the signal detection module 104 After the light source signal is identified, a signal source tracking list can be further generated and updated. The signal source tracking list is digital information, and the signal detection module 103 can establish the identified light source signal in the signal source tracking list. , The signal source tracking list may include a signal source identification code of the signal source, the signal source identification code is used to mark the vehicles included in the signal source tracking list; the optical signal processing module 105 is adjusted by, for example, amplitude offset adjustment Amplitude Shift Keying Modulation (ASK), Phase Shift Keying Modulation (PSK), or Frequency Shift Keying Modulation (FSK) to achieve encoding and decoding operations. Modulate the signal to a certain frequency, and then pass it to the optical signal generation module 106; the optical signal generation module 106 can be used to emit a light source signal, which can be, for example, a light-emitting diode module, a laser light source module , Fluorescent lamp modules or electroluminescent modules and other light-emitting modules are not limited to the aforementioned light-emitting modules, but anyone who can be used as a light-emitting source can be implemented, not limited to this.

Please refer to "Picture 3", which is the schematic diagram of the implementation of the creation (1), please refer to "Picture 2", the vehicle 11 shown in the figure, when driving on the road under normal conditions, the vehicle 11 The environmental image information with depth information can be captured through the light source capturing module 103 and all ambient light source information in the setting environment can be received, and then the light source signal A can be identified through the signal detection module 104 and through the light source capturing module 103 carries out the tracking of the light source signal A emission source. As shown in the figure, the vehicles 12, 13 are the light source signal A emission source that has been tracked, and are included in the signal source tracking list, so that the vehicle 11 can continuously receive Receive the light source signal A emitted by the vehicles 12 and 13 to grasp the vehicle conditions of the vehicles 12 and 13 in real time; please refer to "Figure 4" for the matching. The figure shows the schematic diagram of the implementation of the creation (2), as shown in this figure The vehicle 14 shown above, as mentioned above, the light source extraction module 103 detects the possible light source signal A emission source at intervals, when the light source extraction module 103 finds a new vehicle (such as the vehicle shown in this figure) 14) It will be included in the signal source tracking list and start tracking. After a period of time, the originally tracked vehicle 12 has left the field of view of the light source extraction module 103, so the vehicle 12 is removed from the signal source tracking list to stop tracking. And continue to track known vehicles 13,14.

Please refer to "Picture 5", which is the schematic diagram of the implementation of the creation (3), please refer to "Picture 2", the vehicles 11, 12, 13 shown in the figure, under normal conditions, the vehicle 11 is located Between the vehicles 12, 13, and the front and rear ends of each vehicle (11, 12, 13) are provided with optical signal transmission and receiving systems (10, 10'). As shown in this figure, the vehicle 11 can receive the vehicle 12, 13 the light source signal A sent by the vehicle 11, the vehicle 11 mainly receives the light source signal A emitted from the rear of the vehicle 12 and the light source signal A emitted from the front of the vehicle 13 through the optical signal transmission and reception systems (10, 10') at both ends, and After the signal detection module 103 recognizes the light source signal A, it is included in the signal source tracking list to continuously track the vehicle conditions of the vehicles 12, 13 and receives the light source signal A through the light source extraction module 104, and then further uses the optical signal processing module 105 The light source signal A is decoded to obtain light source information, so that the vehicle 11 can instantly grasp the vehicle conditions of the vehicles 12 and 13.

Please refer to "Figure 6", which is the schematic diagram of the implementation of the creation (four), please refer to "Figure 2", from the above, the optical signal transmission and receiving system (10, 10') and the vehicle 11 The driving computer host 111 forms an information link, and can control the vehicle condition of the vehicle 11 through the driving computer host 111, and when the vehicle 11 fails, the optical signal transmission and receiving system 10 can learn the current failure status through the driving computer host 111. And by sending the light source signal A to inform other vehicles, for example, the current tire pressure of the vehicle 11 is insufficient, and the optical signal transmission and receiving system 10 can be informed by the driving computer host 111 that the current vehicle 11 tire pressure is insufficient, and further through the central processing module 101 retrieves the database 102 to meet the vehicle condition information C with insufficient tire pressure, and further transmits the vehicle condition information C to the optical signal processing module 105 to perform the encoding operation to form the light source signal A, and then the light source signal A through the optical signal generation module 106 It is sent out so that other vehicles outside can know the current vehicle condition of the vehicle 11.

Please refer to "Figure 7". The figure shows a schematic diagram of the light source signal receiving steps of the creation. As shown in the figure, this embodiment discloses an implementation method of a vehicle optical signal transmission and receiving system that can receive light source signals. The implementation steps are as follows : (1) Ambient light source information detection step 21: Use the light source extraction module 103 to capture environmental image information with depth information and receive all ambient light source information set in the environment, and recognize through the signal detection module 104 Light source signal with light source information in the environment light source information; (2) Tracing the light source signal step 22: tracking the light source signal emission source through the light source extraction module 103 and adding it to the signal source tracking list to continuously receive the light source signal emitted by the external vehicle; (3) receiving the light source signal step 23 : After receiving the light source signal through the light source extraction module 103, the light source signal is further transmitted to the optical signal processing module 105; (4) Decoding step 24: The light source signal can be formed after decoding by the optical signal processing module 105 The light source information being read.

Please refer to "Figure 8". The figure shows a schematic diagram of the steps of the light source signal transmission created. As shown in the figure, this embodiment discloses an implementation method of a vehicle optical signal transmission and receiving system that can emit light source signals. The implementation steps are as follows .

(1) Monitoring the vehicle condition Step 31: When the vehicle is in a situation, the driving computer host 111 of the vehicle can instantly know what kind of situation the vehicle is currently in, and the driving computer host 111 and the vehicle optical signal transmission and receiving system 10 form an information link; 2) Retrieve information from the database Step 32: The central processing module 101 further retrieves the vehicle condition information C that matches the current vehicle condition from the database 102; (3) Light source signal encoding step 33: The central processing module 101 further converts the vehicle condition information C is sent to the optical signal processing module 105 for encoding operation to form a light source signal; (4) Perform light source signal sending step 34: The formed light source signal can be sent out through the light signal generating module 106, so that other vehicles outside can know the current vehicle condition of the vehicle.

Please refer to "Figure 9". The figure shows another embodiment (1) of the creation. The light source extraction module 103 described in this creation may be further provided with a second light source extraction unit 1031. The second light source capturing unit 1031 can be a small field of view (FOV) array type photosensitive element, or a directional sensor composed of several high-speed sampling photodiodes and front-end optical devices. With the advantage of a small field of view, it is possible to avoid sampling a wide range of information-free picture areas, thus increasing the amount of information per unit time. When the second light source extraction unit 1031 is aligned with the direction of a certain light source signal, the information transmission can be greatly improved Speed, so that the communication bandwidth of a single pipe is increased, which is convenient for receiving the light source signal of a remote vehicle.

Please refer to "Figure 10", which shows another embodiment (2) of the creation. The optical signal generation module 106 described in this creation can be composed of multiple LED lights arranged in an array, for example The first LED lamp array 1061, a second LED lamp array 1062, and a third LED lamp array 1063 are shown in the figure. The optical signal generation module 106 can adjust the number of LED lamp arrays (1061, 1062, 1063). Light source signal strength, as shown in the figure, the central processing module 101 can send an adjustment information D to each LED lamp array (1061, 1062, 1063), and each LED lamp array (1061, 1062, 1063) receives After adjusting the information D, each LED lamp array (1061, 1062, 1063) Based on the adjustment information D, the modulation frequency of the light source can be adjusted so that each LED lamp array (1061, 1062, 1063) can avoid the same channel, that is, each LED lamp array (1061, 1062, 1063) can be avoided The frequency of the same or close signal is modulated to reduce interference. Since the adjustment process is dynamic, each LED lamp array (1061, 1062, 1063) can reselect the channel within a certain period of time, so each LED lamp array (1061 1062, 1063) can use the limited frequency band more efficiently, so that the light source signal A transmitted by each LED lamp array (1061, 1062, 1063) can have priority differences in importance and timeliness, respectively.

As can be seen from the above, the vehicle optical signal transmission and reception system disclosed in this creation mainly uses a light source extraction module to capture ambient light source information and images, and then further identifies the ambient light source information through the signal detection module. Whether there is a light source signal, and the received light source signal can be decoded by the optical signal processing module to form the light source information to be read to obtain the information to be communicated by the vehicle. Furthermore, the own vehicle can use the optical signal processing module to After the optical signal information to be transmitted is encoded, the external signal vehicle is irradiated through the optical signal generation module, thereby the signal transmission between the vehicles can be effectively achieved through the above-mentioned optical signal information transmission method; After its creation and implementation, it can indeed achieve the purpose of providing a vehicle optical signal transmission and reception system that can communicate with each other without being affected by location and direction of travel.

However, the above are only preferred embodiments of this creation, and are not intended to limit the scope of the implementation of this creation; anyone who is familiar with this skill, All changes and modifications made without departing from the spirit and scope of this creation should be covered by the patent scope of this creation.

To sum up, the effect of this creation is to have the patent requirements such as "industrial availability", "novelty" and "progressiveness" of the invention; the applicant has filed a new patent to the Jun Bureau in accordance with the provisions of the Patent Law Application.

10: Vehicle optical signal transmission and receiving system

101: central processing module

102: Database

103: Light source extraction module

104: Signal detection module

105: Optical signal processing module

106: Optical signal transmitter module

A: Light source signal

Claims (7)

A vehicle optical signal transmission and receiving system for capturing a light source signal in an environmental light source information and an environmental image information, which are respectively provided at the front and rear ends of a vehicle and formed with a vehicle computer host of the vehicle The information link includes: a central processing module, which forms an information link with a database, a light source acquisition module, a signal detection module, an optical signal processing module and an optical signal generation module, respectively The central processing module is used to drive the action of each module; the database prestores several pieces of vehicle condition information; the light source extraction module is used to capture the environmental light source information and the environmental image information; the signal detection module is used to Identify the light source signal included in the environmental light source information, and further identify the signal source position of the light source signal in the environmental image information to generate a signal source tracking list; the optical signal processing module is provided for the light source signal Carry out decoding operations, the light source signal is decoded to form a light source information; the light signal generation module is used to emit the light source signal, and; the vehicle optical signal transmission and receiving system is used to continuously monitor the vehicle through the driving computer host Vehicle condition, when the vehicle condition occurs, the central processing module can retrieve the vehicle condition information that matches the current vehicle condition according to the occurrence condition, and further encode the vehicle condition through the optical signal processing module, And send out in the form of light source signal through the optical signal generation module. The vehicle optical signal transmission and receiving system as described in item 1 of the patent application scope, wherein the signal source tracking list includes a signal source identification code of the signal source, and the signal source identification code is used to mark the signal source tracking list Vehicles included. The vehicle optical signal transmission and receiving system as described in item 1 of the patent application scope, wherein the light source extraction module is one of an optical sensor or a depth camera. The optical signal transmission and receiving system for vehicles as described in item 1 of the patent scope, wherein the optical signal processing module uses amplitude shift modulation (Amplitude Shift Keying Modulation, ASK) and phase shift modulation (Phase Shift Keying) Modulation (PSK) or Frequency Shift Keying Modulation (FSK) to achieve encoding and decoding operations. The vehicle optical signal transmission and receiving system as described in item 1 of the patent application scope, wherein the light source extraction module is provided with a second light source extraction unit, so as to receive the light source signal of the remote vehicle. The vehicle optical signal transmission and receiving system as described in item 5 of the patent application scope, wherein the second light source extraction unit is a small field of view (FOV) array type photosensitive element. The vehicle optical signal transmission and receiving system as described in item 1 of the patent scope, wherein the optical signal generation module is composed of a plurality of LED lights arranged in an array, and the central processing module is used to transmit an adjustment information to each The LED lamp array enables each LED lamp array to adjust the modulation frequency of the light source according to the adjustment information.

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