CN110895710A

CN110895710A - Article detection method of vehicle-mounted terminal

Info

Publication number: CN110895710A
Application number: CN201811068378.XA
Authority: CN
Inventors: 吝忠锋
Original assignee: Shanghai Qinggan Intelligent Technology Co Ltd
Current assignee: Shanghai Qinggan Intelligent Technology Co Ltd
Priority date: 2018-09-13
Filing date: 2018-09-13
Publication date: 2020-03-20

Abstract

The invention provides an article detection method of a vehicle-mounted terminal, which comprises the following steps: detecting a trigger event; reading one or more RFID tags around the vehicle-mounted terminal in response to the triggering event, wherein the one or more RFID tags are associated with one or more items; matching the one or more RFID tags with a preset tag list; and outputting article prompt information according to the matching result. Compared with the prior art, the invention provides the article detection method of the vehicle-mounted terminal, which can detect whether articles are carried in order or carry forbidden articles or not through the RFID identification module when a vehicle is started, locked or the doors of an upper vehicle and a lower vehicle are closed, so that the vehicle-mounted terminal has an article detection function, the intelligent level of the vehicle-mounted terminal is improved, and the user experience is improved.

Description

Article detection method of vehicle-mounted terminal

Technical Field

The invention mainly relates to the field of automobile electronic control, in particular to an article detection method of a vehicle-mounted terminal.

Background

The vehicle-mounted terminal of the vehicle is a human-computer interaction interface and is used for collecting and processing data and presenting the processed data to a user.

Some current vehicle-mounted terminals have a Radio Frequency Identification (RFID) function. The vehicle-mounted terminal with the RFID function is usually used for parking identity recognition or garage entry and exit registration, and has few application scenes, insufficient intellectualization and poor user experience.

Disclosure of Invention

The invention aims to provide an article detection method of a vehicle-mounted terminal so as to improve the intelligent level of the vehicle-mounted terminal and improve the user experience.

In order to solve the technical problem, the invention provides an article detection method of a vehicle-mounted terminal, which comprises the following steps: detecting a trigger event; reading one or more RFID tags around the vehicle-mounted terminal in response to the triggering event, wherein the one or more RFID tags are associated with one or more items; matching the one or more RFID tags with a preset tag list; and outputting article prompt information according to the matching result.

In an embodiment of the present invention, the trigger event includes: user operation, car start, car door close and car locked.

In an embodiment of the present invention, the preset tag list is associated with the trigger event.

In one embodiment of the present invention, the step of matching the one or more RFID tags with a predetermined tag list comprises: matching each preset tag in the preset tag list with one or more RFID tags; and determining the preset label which is not matched.

In one embodiment of the present invention, the step of matching the one or more RFID tags with a predetermined tag list comprises: matching each of the one or more RFID tags with a preset tag in the preset tag list; the matched RFID tag is determined.

In an embodiment of the present invention, the step of outputting the article prompt information includes: the article prompt message is broadcasted in a voice mode; displaying the item prompt message; and/or sending the item prompt message to a mobile terminal associated with the vehicle-mounted terminal.

In an embodiment of the invention, the method further comprises adjusting the distance for reading the RFID tag.

In an embodiment of the present invention, the method further includes associating a preset tag in the preset tag list with an item name.

The invention also provides a vehicle-mounted terminal which comprises a processor, a memory and instructions stored in the memory, wherein the instructions realize the method when being executed by the processor.

Compared with the prior art, the invention has the following advantages: the invention provides an article detection method of a vehicle-mounted terminal, which can detect whether articles are carried in order or carry forbidden articles through an RFID (radio frequency identification) module when a vehicle is started, locked or an upper vehicle door and a lower vehicle door are closed, so that the vehicle-mounted terminal has an article detection function, the intelligent level of the vehicle-mounted terminal is improved, and the user experience is improved.

Drawings

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, wherein:

fig. 1 is a schematic diagram of an in-vehicle terminal system according to an embodiment of the present invention.

Fig. 2 is a flowchart of an article detection method of a vehicle-mounted terminal according to an embodiment of the present invention.

Fig. 3 is a flowchart of an article detection method of a vehicle-mounted terminal according to another embodiment of the present invention.

Fig. 4 is a flowchart of an article detection method of a vehicle-mounted terminal according to another embodiment of the present invention.

Fig. 5 is a flowchart of an article detection method of a vehicle-mounted terminal according to another embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

Furthermore, each of the embodiments described below has one or more technical features, and thus, the use of the technical features of any one embodiment does not necessarily mean that all of the technical features of any one embodiment are implemented at the same time or that only some or all of the technical features of different embodiments are implemented separately. In other words, those skilled in the art can selectively implement some or all of the features of any embodiment or combinations of some or all of the features of multiple embodiments according to the disclosure of the present invention and according to design specifications or implementation requirements, thereby increasing the flexibility in implementing the invention.

It will be understood that when an element is referred to as being "on," "connected to," "coupled to" or "contacting" another element, it can be directly on, connected or coupled to, or contacting the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to" or "directly contacting" another element, there are no intervening elements present. Similarly, when a first element is referred to as being "in electrical contact with" or "electrically coupled to" a second element, there is an electrical path between the first element and the second element that allows current to flow. The electrical path may include capacitors, coupled inductors, and/or other elements that allow current to flow even without direct contact between the conductive elements.

Fig. 1 is a schematic diagram of an in-vehicle terminal system 100 according to an embodiment of the present invention. As shown in fig. 1, the in-vehicle terminal system 100 includes a radio frequency identification module 101, a transceiver 102, an I/O interface 103, a processor 104, a memory 105, an external storage 106, an audio driving module 107, a speaker 108, a display driving module 109, and a display 110. The I/O interface 103, the processor 104, the memory 105, and the external storage 106 constitute a car machine, and the rfid module 101, the transceiver 102, the audio driver module 107, the speaker 108, the display driver module 109, and the display 110 are located outside the car machine.

The RFID module 101 is used to identify RFID tags. The rfid module 101 generates and transmits radio waves of a specific frequency when the driving circuit is energized. The RFID tag functions in response to radio waves of a specific frequency emitted by the radio frequency identification module 101. The RFID tag includes an RFID chip and an antenna. RFID chips typically include a semiconductor chip of RF circuitry, logic circuitry, and memory. The RFID antenna may be a high frequency antenna or an ultra high frequency antenna. The operating frequency of the high frequency antenna may be 13.56 MHz. The operating frequency of the UHF antenna may be 860-960 MHz. The RFID tag may be an active RFID tag or a passive RFID tag. Active RFID tags use an internal battery to power their circuitry. The active tag also uses its battery to send radio waves to the rfid module 101. Passive RFID tags rely entirely on the reader as their power source.

The transceiver 102 is used to receive vehicle status data from the communication bus of the vehicle. The communication bus of the vehicle may be a Controller Area Network (CAN), a Local Interconnect Network (LIN), or a Media Oriented Transport Network (MOST). Accordingly, the transceiver 102 may be a CAN transceiver, a LIN transceiver, or a MOST transceiver. Vehicle state data includes, but is not limited to, door signals and ignition signals. The door signal may indicate that the door is open or closed. The ignition signal may indicate that the vehicle is on or off. The transceiver 102, upon receiving the vehicle state data, sends it to the I/O interface 103.

The I/O interface 103 is connected to the rfid module 101 and the transceiver 102 for receiving identification data transmitted by the rfid module 101 and vehicle status data transmitted by the transceiver 102. The I/O interface 103 may be a serial interface or a parallel interface. The Serial interface may be a Universal Asynchronous Receiver/Transmitter (UART), Universal Serial Bus (USB), Serial Peripheral Interface (SPI), I2C interface, RS-232, RS-454, etc.

The processor 104 is connected to the I/O interface 103 and receives the identification data and the vehicle status data forwarded by the I/O interface 103. The processor 103 may process the identification data and the vehicle state data. In some embodiments, the processing of the identification data and the vehicle state data by the processor 103 may be parsing. For example, the processor 103 parses the identification data and the vehicle status data to obtain the identified RFID tag, the door signal or the ignition signal of the vehicle. In some embodiments, the processing of the identification data and the vehicle state data by the processor 103 may be filtering, amplifying, denoising, etc., or any combination thereof, of the identification data and the vehicle state data.

In some embodiments, the in-vehicle terminal system 100 may further include a memory 105. The memory 105 is coupled to the processor 104 and is used to provide temporary storage for data and/or instructions to be processed by the processor 104. For example, the memory 105 may temporarily store identification data and vehicle status data. Also for example, memory 105 may temporarily store program instructions needed by processor 104 to process data, which may be filtered, amplified, noise reduced, etc., or any combination thereof. Memory 105 may include, for example, Dynamic RAM (DRAM), double data rate synchronous dynamic RAM (DDR SDRAM), Static RAM (SRAM), thyristor RAM (T-RAM), zero capacitance RAM (Z-RAM), and the like, or any combination thereof.

In some embodiments, the in-vehicle terminal system 100 may further include an external memory 106. An external memory 106 is coupled to the processor 104 for storing data. In some embodiments, the external memory 106 may, for example, include a preset list of tags. In some embodiments, the external memory 106 may include, for example, an eMMC memory, a flash memory chip, an SSD memory, etc., or any combination thereof, provided within the in-vehicle terminal system 100. The external memory 106 may be a TF card, an MMC card, an SD card, or the like, or any combination thereof, which is provided in a card slot provided in the in-vehicle terminal system 100. In some embodiments, the external memory 105 may be connected to the processor 104 through an SDIO (Secure Digital Input/Output) interface.

An audio driver module 107 is connected to the I/O interface 103 for receiving control signals and audio data. The control signal may be to pause the play, play or stop the play. The audio driver module 107 may process the audio data. The processing of the audio data by the audio driver module 106 may be decoding, digital-to-analog conversion, analog filtering, and the like, or any combination thereof.

The speaker 108 is connected to the audio driver module 107 for receiving the audio data processed by the audio driver module 107. The speaker 108 may power amplify the audio data after processing by the audio driver module 107.

The display driver module 109 is connected to the I/O interface 103 for receiving display image data. The display driver module 109 may process the display image data. The processing of the display image data by the display driver module 109 may be decoding, noise reduction, sharpening, etc., or any combination thereof.

The display 110 is connected to the display driving module 109, and is configured to receive the display image data processed by the display driving module 109. The display 109 may display the display image processed by the display driving module 108. In some embodiments, the display 110 may be a liquid crystal display, an organic light emitting diode display, or the like.

As introduced in the background art, the vehicle-mounted terminal with the RFID function is generally used for parking identification or garage entry and exit registration, and has few application scenarios, insufficient intellectualization, and poor user experience.

Fig. 2 is a flowchart of an article detection method of a vehicle-mounted terminal according to an embodiment of the present invention. An article detection method of a vehicle-mounted terminal of the present embodiment may be executed in, for example, the vehicle-mounted terminal system 100 shown in fig. 1. The article detection method of the vehicle-mounted terminal comprises the following steps:

step 210: a trigger event is detected.

In this step, a trigger event is detected. The triggering events may include user operation, vehicle start, door close, and vehicle lock. The user operation may include the user issuing a trigger instruction. The user may issue the trigger instruction by pressing a touch screen or generating a voice. When the vehicle is started, the door is closed or the vehicle is locked, the vehicle sensor detects the vehicle is started, the door is closed or the vehicle is locked, converts the vehicle into an electric signal and sends the electric signal to the vehicle communication bus. The transceiver receives a sensor signal sent by the vehicle communication bus and detects vehicle start, door closure or vehicle locking.

Taking the in-vehicle terminal system 100 shown in fig. 1 as an example, when the vehicle starts, the door closes, or the vehicle locks, the vehicle sensor detects the vehicle start, the door closes, or the vehicle locks, converts it into an electrical signal, and sends it to the vehicle communication bus. The transceiver 102 receives sensor signals sent by the vehicle communication bus and detects vehicle start, door closure, or vehicle lock.

Step 220: and reading one or more RFID tags around the vehicle-mounted terminal in response to the triggering event.

In this step, one or more RFID tags around the in-vehicle terminal are read in response to a triggering event. After detecting the triggering event, the radio frequency identification module reads one or more RFID tags around the vehicle-mounted terminal. The antenna of the RFID tag may be a high frequency antenna or an ultra high frequency antenna. The identification distance of the ultrahigh frequency antenna is greater than that of the high frequency antenna. The user can adjust the identification distance by selecting the frequency band of the antenna. For example, when a user needs short-distance identification, a high-frequency antenna can be selected, and the identification distance is about 50 cm; when a user needs to identify the antenna in a long distance, the ultrahigh frequency antenna can be selected, and the identification distance is about 100 cm. The RFID tag is located on the item and the RFID tag is correlated to the item, so the item can be detected by identifying the RFID tag. The radio frequency identification module can read one or more RFID labels around the vehicle-mounted terminal one by one or can read all the RFID labels at a time.

Taking the vehicle-mounted terminal system 100 shown in fig. 1 as an example, after detecting the trigger event, the RFID module 101 reads one or more RFID tags around the vehicle-mounted terminal. The antenna of the RFID tag may be a high frequency antenna or an ultra high frequency antenna. The identification distance of the ultrahigh frequency antenna is greater than that of the high frequency antenna. The user can adjust the identification distance by selecting the frequency band of the antenna. For example, when a user needs short-distance identification, a high-frequency antenna can be selected, and the identification distance is about 50 cm; when a user needs to identify the antenna in a long distance, the ultrahigh frequency antenna can be selected, and the identification distance is about 100 cm. The RFID tag is located on the item and the RFID tag is correlated to the item, so the item can be detected by identifying the RFID tag.

Step 230: one or more RFID tags are matched to a predetermined list of tags.

In this step, after reading one or more RFID tags around the in-vehicle terminal, the one or more RFID tags are matched with a preset tag list. In an embodiment of the invention, the preset tag list is associated with a triggering event. The preset tag list may include a first tag list and a second tag list. The first tag list may include a list of items that should be carried to detect whether the items are level. The second tag list may include a list of items that should not be carried to detect whether the item is a contraband item. In an embodiment of the present invention, the step of matching one or more RFID tags with a preset tag list may include matching each preset tag in the first preset tag list with one or more RFID tags, and determining the preset tag that is not matched to detect whether the article is aligned. In another embodiment of the present invention, the step of matching one or more RFID tags with a preset tag list may include matching each preset tag in the second preset tag list with one or more RFID tags, and determining the matched preset tag to detect whether the matched preset tag is a contraband. The preset tags in the preset tag list may be associated with item names, for example naming the preset tags as item names. In an embodiment of the present invention, the user may further edit names of the preset tags in the preset tag list to meet different user requirements.

Taking the in-vehicle terminal system 100 shown in fig. 1 as an example, after the RFID module 101 reads one or more RFID tags around the in-vehicle terminal, the identification data is sent to the processor 104 through the I/O103. After the processor 104 receives the recognition result, the recognition result is matched with a preset tag list stored in the external memory 106. The preset tag list in the external memory 106 may be a first preset tag list, and the processor 104 matches the recognition result with the first preset tag, and determines the unmatched preset tag, so as to detect whether the article is fully carried. The preset tag list in the external memory 106 may be a second preset tag list, and the processor 104 matches the recognition result with the second preset tag to determine a matched preset tag, so as to detect whether the article is a prohibited article.

Step 240: and outputting article prompt information according to the matching result.

In this step, article prompt information is output according to the matching result. Outputting the item alert information may include voice broadcasting the item alert message, displaying the item alert message, and/or sending the item alert message to a mobile terminal associated with the in-vehicle terminal.

Taking the vehicle-mounted terminal system 100 shown in fig. 1 as an example, if the processor 104 matches the recognition result with the first preset tag, and determines that there is an unmatched preset tag, the pre-stored reminding information is sent to the audio driving module 107, the display driving module 109 and a mobile terminal, such as a mobile phone, associated with the vehicle-mounted terminal. After receiving the reminding information, the audio driver module 107 processes the reminding information and sends the processed reminding information to the speaker 108. The speaker 108 receives the processed reminder information and plays the reminder information. After receiving the reminding information, the display driving module 109 processes the reminding information and sends the processed reminding information to the display 110. The display 110 receives the processed reminder information and displays the reminder information.

The invention provides an article detection method of a vehicle-mounted terminal, which can detect whether articles are carried in order or carry forbidden articles through an RFID (radio frequency identification) module when a vehicle is started, locked or an upper vehicle door and a lower vehicle door are closed, so that the vehicle-mounted terminal has an article detection function, the intelligent level of the vehicle-mounted terminal is improved, and the user experience is improved.

The following describes an article detection method of a vehicle-mounted terminal according to the present invention in a scenario. The following description is given taking the in-vehicle terminal system 100 shown in fig. 1 as an example.

Scene one: detecting whether articles are brought in order

Step 310: detecting vehicle start or getting on the back door closed.

When the vehicle is started or the back door of the vehicle is closed, the vehicle sensor detects that the vehicle is started and the back door of the vehicle is closed, converts the electric signal into the electric signal and sends the electric signal to the vehicle communication bus. The transceiver 102 receives a sensor signal transmitted by the vehicle communication bus and detects that the vehicle is started and the upper rear door is closed.

Step 320: one or more RFID tags around the in-vehicle terminal are read in response to vehicle start or rear door closure.

After the transceiver 102 detects the trigger event, the RFID module 101 reads one or more RFID tags around the vehicle terminal. The RFID tag is located on the item and the RFID tag is correlated to the item, so the item can be detected by identifying the RFID tag. For example, a mobile phone, a wallet, an identity card and a key all have corresponding RFID tags. The RFID module 101 may read one or more RFID tags around the vehicle-mounted terminal one by one, or may read all at a time.

Step 330: and matching one or more RFID labels with the first preset label list, and determining the preset labels which are not matched.

After the RFID module 101 reads one or more RFID tags around the in-vehicle terminal, it sends the identification data to the processor 104 through the I/O103. After the processor 104 receives the recognition result, the recognition result is matched with the first preset tag list stored in the external memory 106. The processor 104 matches the recognition result with the first preset tag, and determines the unmatched preset tag to detect whether the article is fully carried. For example, the first preset tag includes a preset tag corresponding to a mobile phone, a wallet, an identification card, and a key. And if the RFID label of the mobile phone is not detected, determining that the preset label of the mobile phone is not matched.

Step 340: and outputting article prompt information according to the matching result.

After matching the recognition result with the first preset tag, the processor 104 determines that there is an unmatched preset tag, and sends the pre-stored reminding information to the audio driving module 107, the display driving module 109 and a mobile terminal, such as a mobile phone, associated with the in-vehicle terminal. The audio driver module 107 processes the reminder information and sends it to the speaker 108. The speaker 108 may emit a voice alert such as "the phone forgets to do a la". The display driver module 109 processes the reminder information and sends it to the display 110. The display 110 can display a graphical alert, such as a graphic showing "the phone is unleared".

Scene two: detecting carrying of contraband

Step 410: detecting vehicle start or getting on the back door closed.

Step 420: one or more RFID tags around the vehicle are read in response to the vehicle being started or the rear door being closed.

After the transceiver 102 detects the trigger event, the RFID module 101 reads one or more RFID tags around the vehicle terminal. The RFID tag is located on the item and the RFID tag is correlated to the item, so the item can be detected by identifying the RFID tag. For example, firearms, ammunition, etc. have corresponding RFID tags. The RFID module 101 may be networked with a police system to obtain RFID tags for firearms, ammunition, etc. The RFID module 101 may read one or more RFID tags around the vehicle-mounted terminal one by one, or may read all at a time.

Step 430: and matching one or more RFID labels with the second preset label list, and determining the matched preset labels.

After the RFID module 101 reads one or more RFID tags around the in-vehicle terminal, it sends the identification data to the processor 104 through the I/O103. After the processor 104 receives the recognition result, the recognition result is matched with the second preset tag list stored in the external memory 106. The processor 104 matches the recognition result with the second preset tag, and determines the matched preset tag to detect whether the article is a contraband article. For example, the second preset tag includes a preset tag corresponding to a firearm or ammunition. If the RFID tag of the gun is detected, the determined preset tag is matched.

Step 440: and outputting article prompt information according to the matching result.

After matching the recognition result with the second preset tag, the processor 104 determines that there is a matched preset tag, and sends the pre-stored reminding information to the audio driving module 107, the display driving module 109, and a mobile terminal, such as a mobile phone, associated with the in-vehicle terminal. The audio driver module 107 processes the reminder information and sends it to the speaker 108. The speaker 108 may emit a voice alert such as "no contraband, please note". The display driver module 109 processes the reminder information and sends it to the display 110. The display 110 may display a graphical reminder, such as a graphic showing "there are contraband items present, please note".

Scene three: detecting whether an article is left in a vehicle

Step 510: and detecting the closing of the lower rear door or the locking of the vehicle.

When the rear door of the vehicle is closed or the vehicle is locked, the vehicle sensor detects that the rear door of the vehicle is closed or the vehicle is locked, converts the rear door of the vehicle into an electric signal and sends the electric signal to the vehicle communication bus. The transceiver 102 receives a sensor signal sent by the vehicle communication bus and detects that the rear door of the lower vehicle is closed or the vehicle is locked.

Step 520: one or more RFID tags around the in-vehicle terminal are read in response to the getting-off rear door being closed or the vehicle being locked.

Step 530: and matching one or more RFID labels with the first preset label list, and determining the preset labels which are not matched.

Step 540: and outputting article prompt information according to the matching result.

After matching the recognition result with the first preset tag, the processor 104 determines that there is an unmatched preset tag, and sends the pre-stored reminding information to the audio driving module 107, the display driving module 109 and a mobile terminal, such as a mobile phone, associated with the in-vehicle terminal. The audio driver module 107 processes the reminder information and sends it to the speaker 108. Speaker 108 may emit a voice alert such as "mobile phone forget to take a la". The display driver module 109 processes the reminder information and sends it to the display 110. The display 110 can display a graphical alert, such as a graphic showing "mobile phone forget to take a la".

Although the present invention has been described with reference to the present specific embodiments, it will be appreciated by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes and substitutions may be made without departing from the spirit of the invention, and therefore, it is intended that all changes and modifications to the above embodiments within the spirit and scope of the present invention be covered by the appended claims.

Claims

1. An article detection method of a vehicle-mounted terminal, the method comprising the steps of:

detecting a trigger event;

reading one or more RFID tags around the vehicle-mounted terminal in response to the triggering event, wherein the one or more RFID tags are associated with one or more items;

matching the one or more RFID tags with a preset tag list;

and outputting article prompt information according to the matching result.

2. The method of claim 1, wherein the triggering event comprises: user operation, car start, car door close and car locked.

3. The method according to claim 1 or 2, wherein the preset list of tags is associated with the triggering event.

4. The method of claim 1 or 2, wherein the step of matching the one or more RFID tags with a predetermined list of tags comprises:

matching each preset tag in the preset tag list with one or more RFID tags;

and determining the preset label which is not matched.

5. The method of claim 1 or 2, wherein the step of matching the one or more RFID tags with a predetermined list of tags comprises:

matching each of the one or more RFID tags with a preset tag in the preset tag list;

the matched RFID tag is determined.

6. The method of claim 1, wherein the step of outputting item reminder information comprises:

the article prompt message is broadcasted in a voice mode;

displaying the item prompt message; and/or

And sending the article prompting message to a mobile terminal associated with the vehicle-mounted terminal.

7. The method of claim 1, further comprising adjusting a distance at which the RFID tag is read.

8. The method of claim 1, further comprising associating a preset tag in the preset tag list with an item name.

9. An in-vehicle terminal comprising a processor, a memory, and instructions stored in the memory, wherein the instructions, when executed by the processor, implement the method of any of claims 1-8.