CN109981202B

CN109981202B - Vehicle broadcast alarm method and device

Info

Publication number: CN109981202B
Application number: CN201711447278.3A
Authority: CN
Inventors: 田福苓; 霍建雷
Original assignee: Xian Zhongxing New Software Co Ltd
Current assignee: Xian Zhongxing New Software Co Ltd
Priority date: 2017-12-27
Filing date: 2017-12-27
Publication date: 2022-04-22
Anticipated expiration: 2037-12-27
Also published as: CN109981202A; WO2019129036A1

Abstract

The application provides a method and a device for vehicle broadcast alarm, wherein the method comprises the following steps: analyzing the received emergency signal instruction to generate an emergency broadcast message; determining a broadcast mode of an emergency broadcast message; broadcasting the emergency broadcast message according to the determined broadcast mode. According to the technical scheme, the vehicle-mounted WIFI unit is used for sending the alarm message in a broadcasting mode, wherein the SSID changes, the SSID after dynamic change is broadcasted, the MAC address of the WIFI unit is broadcasted, the signal intensity of WIFI is broadcasted, the alarm message is sent, and the opportunity of obtaining rescue and help is increased.

Description

Vehicle broadcast alarm method and device

Technical Field

The invention relates to the technical field of vehicle-mounted alarm, in particular to a method and a device for vehicle broadcast alarm.

Background

At present, when an on-board device is in an emergency or an emergency, a CS (Circuit Switching) service, including a short message and a voice, generally feeds back information to a CSP (Content Security Policy) unit, or interacts with the CSP unit through a PS (Packet Switching) service to report a vehicle state and alarm. However, in the case of no network or limited service, the CS service and the PS service cannot be used, that is, the telephone service, the short message service, and the data service cannot be used, and when an emergency occurs, the unit cannot interact with the CSP unit and alarm through the CSP unit. The time to rescue property and life may thus be delayed or missed.

Disclosure of Invention

The invention provides a method and a device for vehicle broadcast alarm, which send out an alarm message under the condition of no network or limited service.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:

in a first aspect, the present invention provides a vehicle broadcast alarm method, which is applied to a wireless fidelity WIFI unit, and includes:

analyzing the received emergency signal instruction to generate an emergency broadcast message;

determining a broadcast mode of an emergency broadcast message;

broadcasting the emergency broadcast message according to the determined broadcast mode.

Preferably, the generating of the emergency broadcast message further comprises:

and calibrating the emergency event level for the emergency signal instruction.

Preferably, determining the broadcast mode of the emergency broadcast message comprises:

and determining a broadcast mode of the emergency broadcast message according to the emergency grade.

Preferably, the method further comprises, after:

broadcasting a Media Access Control (MAC) address of a wireless fidelity (WIFI) unit and a signal strength of the WIFI unit.

Preferably, determining the broadcast mode of the emergency broadcast message according to the emergency ranking comprises at least one of:

determining a time interval for broadcasting the emergency broadcast message according to the emergency level;

determining a duration of time to broadcast the emergency broadcast message based on the emergency rank.

Preferably, the emergency broadcast message includes at least one of:

license plate number, vehicle position information, vehicle fault information, emergency contact telephone.

Preferably, determining a broadcast mode of the emergency broadcast message according to the emergency ranking further comprises:

determining the number of bytes used for sending the emergency broadcast message, when the number of bytes is larger than a preset value, using a plurality of Service Set Identifiers (SSIDs) to represent the emergency broadcast message, and when the number of bytes is smaller than or equal to the preset value, using a single Service Set Identifier (SSID) to represent the emergency broadcast message.

In a second aspect, the present invention further provides a method for broadcasting an alarm in a vehicle, which is applied to a MODEM, and includes:

receiving a reported event, matching an emergency signal of the event and generating an emergency signal instruction;

judging whether a communication network exists and whether a limited service exists;

and when the communication network does not exist or the limited service exists, the emergency signal instruction is sent to the WIFI unit.

Preferably, the method further comprises, before:

and storing the corresponding relation between the event and the emergency signal.

Preferably, the event is not broadcast as an emergency event when there is no match for the emergency signal of the event.

In a third aspect, the present invention further provides a vehicle broadcast alarm device, which is disposed in a wireless fidelity WIFI unit, and includes:

the analysis module is arranged for analyzing the received emergency signal instruction and generating an emergency broadcast message;

a determination module configured to determine a broadcast mode of an emergency broadcast message;

a broadcasting module configured to broadcast the emergency broadcast message according to the determined broadcasting mode.

Preferably, the determining module is further configured to:

and calibrating the emergency event level for the emergency signal instruction.

Preferably, the determining module determines a broadcast mode of the emergency broadcast message includes:

Preferably, the broadcasting module is further configured to:

Preferably, the determining module determines the broadcast mode of the emergency broadcast message according to the emergency ranking includes at least one of:

Preferably, the determining module determines the broadcast mode of the emergency broadcast message according to the emergency rank further comprises:

In a fourth aspect, the present invention further provides a device for broadcasting an alarm in a vehicle, which is disposed in a MODEM, and includes:

the matching module is used for receiving the reported event, matching the emergency signal of the event and generating an emergency signal instruction;

a judging module configured to judge whether a communication network exists and whether a limited service exists;

and the instruction module is used for sending the emergency signal instruction to the WIFI unit when a communication network does not exist or limited service exists.

Preferably, the apparatus further comprises:

and the storage module is set to store the corresponding relation between the event and the emergency signal.

Preferably, the instruction module does not broadcast the event as an emergency event when the matching module fails to match the emergency signal of the event.

Compared with the prior art, the invention has the following beneficial effects:

according to the technical scheme, the alarming message is sent out by means of the broadcasting of a vehicle-mounted WIFI (Wireless Fidelity) unit, wherein SSID (Service Set Identifier) changes, SSID after dynamic change is broadcasted, MAC (Media Access Control) address of the WIFI unit is broadcasted, the signal intensity of WIFI is broadcasted, the alarming message is sent out, and the opportunity of obtaining rescue and help is increased.

Drawings

FIG. 1 is a flow chart of a method of broadcasting an alert for a vehicle in accordance with an embodiment of the present invention;

FIG. 2 is a flow chart of another method of broadcasting an alert by a vehicle in accordance with an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an apparatus for broadcasting an alarm in a vehicle according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another vehicle alarm broadcasting device according to an embodiment of the present invention;

fig. 5 is a flowchart of WIFI automatic broadcast alarm of embodiment 2;

FIG. 6 is a flow chart of a scenario of an embodiment 3 in which a primary user connects to an alarm SSID;

FIG. 7 is a flow chart of a scenario two-vehicle master user connection alarm SSID alarm in embodiment 3;

fig. 8 is a flow chart of a scenario three non-owner user connection alarm SSID alarm in embodiment 3.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description of the embodiments of the present invention with reference to the accompanying drawings is provided, and it should be noted that, in the case of conflict, features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

As shown in fig. 1, an embodiment of the present invention provides a method for vehicle broadcast alarm, which is applied to a wireless fidelity WIFI unit, and includes:

s101, analyzing a received command emergency signal instruction to generate an emergency broadcast message;

s102, determining a broadcast mode of the emergency broadcast message;

s103, broadcasting the emergency broadcast message according to the determined broadcast mode.

After detecting the emergency signal instruction, the WIFI unit combines the received vehicle information (including license plate number, position information, etc.) into an emergency broadcast message according to a certain rule, in the embodiment of the present invention, the emergency broadcast message is an SSID group (such as SOS + license plate number + position), and performs a timed emergency broadcast.

and calibrating the emergency event level for the emergency signal instruction.

Determining a broadcast mode of an emergency broadcast message includes:

The method further comprises the following steps:

The embodiment of the invention also needs to broadcast the MAC address of the WIFI and the signal intensity of the WIFI. The MAC address is used for determining a unique identifier of WIFI, and the WIFI signal strength can be used for positioning the general distance from a fault vehicle to an access user. The invention can send out alarm information by broadcasting a plurality of WIFI parameters such as WIFI dynamic SSID (Service Set Identifier), WIFI MAC address broadcast, WIFI signal information broadcast and the like when no network exists or Service is limited, thereby increasing the opportunity of obtaining rescue and help. Through the automatic broadcasting alarm mode of the WIFI unit, the problem that alarm and help seeking cannot be performed when CS domain services and PS domain services are unavailable due to network reasons can be solved. For the user, the probability of timely obtaining rescue in case of accident can be increased, and unnecessary loss and injury are reduced.

Wherein the step S103 of determining the broadcast mode of the emergency broadcast message according to the emergency rank includes:

In the embodiment of the invention, the WIFI unit broadcasts the emergency broadcast message at regular time, the higher the emergency level is, the more serious the event is, the shorter the broadcast time interval is, and the times of broadcasting are increased so as to increase the opportunity of obtaining rescue and help. Correspondingly, the emergency broadcast message is broadcasted, the maximum duration time can be set, after the maximum duration time is reached, the fact that rescue and help are obtained is considered, the emergency broadcast message is continuously broadcasted without occupying resources, and after the maximum duration time is reached, the WIFI unit cancels the broadcasting of the emergency broadcast message, and corresponding data are clear.

The emergency broadcast message includes at least one of:

Wherein the step S103 of determining the broadcast mode of the emergency broadcast message according to the emergency rank further includes:

The WIFI unit in the embodiment of the invention can broadcast each SSID independently, and can also broadcast in a multi-SSID mode. The hotspot is set public while the SSID is broadcasted, so that a user can access the hotspot without inputting a password.

The embodiment of the invention also provides a method for vehicle broadcast alarm, which is applied to a MODEM MODEM and comprises the following steps:

s201, receiving a reported event, matching an emergency signal of the event, and generating an emergency signal instruction;

s202, judging whether a communication network exists or not and whether a limited service exists or not;

and S203, when the communication network does not exist or the limited service exists, the emergency signal instruction is sent to the WIFI unit.

In the embodiment of the invention, when a MODEM Unit detects an event sent by an MCU (Micro Control Unit), firstly, whether the event is an emergency event is determined, wherein the emergency event comprises but is not limited to emergency change of an environment in a vehicle or occurrence of an event such as collision, and the like, the MCU determines that the emergency event and the mode of reporting the emergency event are consistent with those of the prior art, the MODEM Unit can detect the current communication network state firstly, and when no communication network, no signal or limited service is detected, CS service cannot be carried out, and PS service cannot be carried out, an emergency signal instruction is sent to a WIFI Unit to inform the WIFI Unit to dynamically modify SSID of the WIFI, and vehicle information (including license plate number, position information and the like) is transmitted to the WIFI Unit.

The method is also preceded by:

When the emergency signal for the event cannot be matched, the event is not broadcast as an emergency event.

As shown in fig. 3, an embodiment of the present invention further provides a device for vehicle broadcast alarm, which is disposed in a wireless fidelity WIFI unit, and includes:

In the embodiment of the present invention, the determining module is further configured to:

and calibrating the emergency event level for the emergency signal instruction.

In the embodiment of the present invention, the determining, by the determining module, a broadcast mode of the emergency broadcast message includes:

The broadcast module in the embodiment of the invention is further configured to:

In an embodiment of the present invention, the determining module determines, according to the emergency level, that the broadcast mode of the emergency broadcast message includes at least one of:

In this embodiment of the present invention, the determining, by the determining module, the broadcast mode of the emergency broadcast message according to the emergency level further includes:

As shown in fig. 4, an embodiment of the present invention further provides an apparatus for broadcasting an alarm in a vehicle, where the apparatus is disposed in a MODEM, and the apparatus includes:

The device in the embodiment of the invention also comprises:

In the embodiment of the present invention, when the matching module cannot match the emergency signal of the event, the instruction module does not broadcast the event as the emergency event.

The present invention also provides a vehicle broadcast alarm apparatus, comprising: a memory and a processor, wherein the processor is capable of,

the memory is used for storing a program for vehicle broadcast alarm;

the processor is used for performing the following operations when the program is executed:

generating an emergency broadcast message after analyzing the received emergency signal instruction;

determining a broadcast mode of an emergency broadcast message;

Example 1

The embodiment adopts the following technical scheme:

1. and emergency detection needs a MODEM unit and an MCU to complete. The specific emergency event can be made into a corresponding table and preset in the MODEM unit. And the user may upgrade this table by wired or wireless means. For example, the collision event is defined as event 1, the corresponding emergency signal is a, and when the MCU unit detects the collision event 1, the emergency signal a is sent to the MODEM unit.

2. And emergency signal transmission is completed by a MODEM unit and a WIFI unit. When the MODEM unit receives the emergency signal A sent by the MCU, the emergency signal A can be broadcasted to the WIFI unit.

And 3, automatically broadcasting and alarming by the WIFI unit:

a command parsing function: and resolving the command sent by the MODEM unit, and calibrating the corresponding emergency level according to the corresponding command.

Setting functions: setting a broadcasting mode of the WIFI SSID, and setting a time interval for regularly broadcasting the SSID according to different emergency levels;

and (3) executing functions: and performing corresponding SSID broadcasting according to the analyzed emergency level, and broadcasting the MAC address of the WIFI and the signal intensity of the WIFI at the same time to achieve the aim of alarming.

Example 2

The method for broadcasting and alarming through the vehicle-mounted WIFI unit comprises the following main steps corresponding to the flow chart 5:

1: presetting a table corresponding to the emergency signal in the Modem unit, and generally storing the preset emergency signal table in a database form;

2: the wireless Modem unit and the MCU unit communicate through a UART port;

3: the MCU unit detects emergency events such as collision and the like, and sends emergency signals to the MODEM unit when the emergency events are detected;

4: the MODEM unit judges whether the received emergency signal is in the emergency table, and judges whether the current network is available;

5: when the emergency signal is detected to be in the corresponding data table and the PS service and the CS service cannot be used due to the fact that the current network is unavailable, broadcasting an emergency signal instruction to the WIFI unit;

6: when the WIFI unit receives the emergency signal instruction, firstly analyzing the corresponding emergency signal and calibrating the corresponding emergency level;

7: the WIFI unit determines a generation rule of the SSID according to the event level, determines a specific SSID, broadcasts a time interval of the SSID, for example, the event level of the collision signal is a critical level, the SSID is SOS + license plate number + position information, and the event interval is 10S. In order to save power, the SSID time interval can be adaptively broadcasted according to the event level; if the generated information is too long and one SSID is not enough, dual SSID broadcasting can be started, wherein prefixes of the SSIDs are the same, for example, the prefixes are all SOS + license plate numbers;

the WIFI unit broadcasts the SSID at regular time according to the setting in the step 7, broadcasts the MAC address of the WIFI and the signal intensity of the WIFI, and sets the WIFI hotspot public;

when a user or other Station detects a WIFI SSID with an alarm word, the detected SSID name has sensitive words, so that the alarm can be assisted, and meanwhile, the general position of a fault vehicle can be located by receiving the signal intensity of WIFI broadcasting.

Example 3

After the SSID is changed, three scenes are found for searching the alarm SSID and alarming:

in a first scenario, a mobile phone of an owner user is originally connected to a WIFI hotspot and can be disconnected, a WIFI automatic detection background on the mobile phone after disconnection calls a WLAN interface to search for surrounding WIFI hotspots, when the SSID of the surrounding hotspots is matched with a preset alarm SSID, and when the MAC address broadcasted by the WIFI hotspot is detected to be consistent with the MAC address of WIFI on a vehicle (because the MAC address of the WIFI is the same as an identity card and is the only mark of the WIFI, the interference of other WIFI equipment can be avoided), the WIFI hotspot is automatically logged in to send an HTTP request, an alarm webpage is automatically jumped to, alarm information (including a vehicle position and a specific vehicle fault) is obtained from the alarm page, a mobile phone of the user is called to make an alarm, and meanwhile, a short message sending interface is called to send vehicle information and vehicle position information to an alarm number. The specific scene steps are illustrated as appendage 6.

And in a second scenario, the owner user is not connected to the WIFI hotspot, the WIFI automatic detection calls a WLAN interface to search the WIFI hotspot at regular time within a specific time interval, for example, the WIFI hotspot is searched once at an interval of 30 minutes, when the searched SSID is matched with a pre-designed alarm SSID, and the MAC address broadcasted by the WIFI hotspot is detected to be consistent with the MAC address of the WIFI on the vehicle (because the MAC address of the WIFI is the same as an identity card and is the only mark of the WIFI, the interference of other WIFI equipment can be avoided), the WIFI hotspot is automatically logged in to send an HTTP request, the alarm webpage is automatically logged in, alarm information (including the position of the vehicle and specific vehicle faults) is obtained from the alarm page, the mobile phone of the user is called to call the interface to alarm, and meanwhile, the short message sending interface is called to send the vehicle information and the vehicle position information to the alarm number. The specific scene steps are illustrated as appendage 7.

And in a third scenario, other equipment of the non-owner user searches the emergency alarm SSID, can receive the signal intensity of the WIFI hotspot, can generally position the distance from the vehicle accident to the position of the user according to the signal intensity, and can alarm and inform the general accident position under the condition of not connecting the WIFI hotspot. If the user is connected with the WIFI hotspot, the login webpage automatically jumps to an alarm webpage, wherein the webpage has specific license plate number information (the license plate number can be inquired to avoid fraudulent behaviors), vehicle position information and vehicle specific accident information. When viewing this information, the device user can assist in alerting. The specific scene steps are illustrated as appendage 8.

The implementation of the first scenario and the second scenario requires the following functions to be implemented by the user:

1. judging whether the current mobile phone is connected to the WIFI hotspot or not;

2. automatically searching for WIFI hotspots;

3. automatically logging in an alarm SSIF WIFI hotspot;

4. automatically sending an HTTP request to log in a webpage;

5. the functions of making a call and sending a short message by the mobile phone are automatically triggered.

In the above three scenes, the WIFI hotspot on the vehicle is required to forcibly jump to the alarm webpage when the device connection is detected and an HTTP request is made.

Although the embodiments of the present invention have been described above, the contents thereof are merely embodiments adopted to facilitate understanding of the technical aspects of the present invention, and are not intended to limit the present invention. It will be apparent to persons skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A vehicle broadcast alarm method is applied to a wireless fidelity (WIFI) unit and comprises the following steps:

when the micro-control MCU unit detects an emergency, an emergency signal is sent to the MODEM unit; when a communication network does not exist or limited service exists, the MODEM unit sends an emergency signal instruction to the WIFI unit, and the MODEM unit and the MCU unit communicate through a UART port;

analyzing a received emergency signal instruction to generate an emergency broadcast message, wherein the emergency broadcast message is a Service Set Identifier (SSID) group;

determining a broadcast mode of an emergency broadcast message;

broadcasting the emergency broadcast message according to the determined broadcast mode;

determining the number of bytes used for sending the emergency broadcast message, when the number of bytes is greater than a preset value, using a plurality of Service Set Identifiers (SSIDs) to represent the emergency broadcast message, and when the number of bytes is less than or equal to the preset value, using a single Service Set Identifier (SSID) to represent the emergency broadcast message;

the method further comprises the following steps:

2. The method of claim 1, wherein: after generating the emergency broadcast message, the method further comprises:

and calibrating the emergency event level for the emergency signal instruction.

3. The method of claim 2, wherein: determining a broadcast mode of an emergency broadcast message includes:

4. The method of claim 3, wherein: determining a broadcast mode of an emergency broadcast message based on the emergency ranking comprises at least one of:

5. The method of claim 1, wherein: the emergency broadcast message includes at least one of:

6. A method for broadcasting an alarm in a vehicle, applied to a MODEM, comprising: receiving an event reported by a micro control MCU unit, matching an emergency signal of the event, and generating an emergency signal instruction, wherein the MODEM unit and the MCU unit communicate through a UART port, and a corresponding relation table of the event and the emergency signal is preset in the MODEM unit;

when a communication network does not exist or limited service exists, the emergency signal instruction is sent to a wireless fidelity (WIFI) unit;

the WIFI unit analyzes the received emergency signal instruction to generate an emergency broadcast message; the WIFI unit determines the number of bytes used for sending the emergency broadcast message, when the number of bytes is larger than a preset value, a plurality of service set identifiers SSID are used for representing the emergency broadcast message, and when the number of bytes is smaller than or equal to the preset value, a single service set identifier SSID is used for representing the emergency broadcast message.

7. The method of claim 6, wherein: the method is also preceded by:

8. The method of claim 6, wherein: when the emergency signal for the event cannot be matched, the event is not broadcast as an emergency event.

9. A vehicle broadcast alarm device is characterized by being arranged on a wireless fidelity WIFI unit, and when a Micro Control Unit (MCU) detects an emergency, an emergency signal is sent to a modulation and demodulation modulator-demodulator unit; when a communication network does not exist or limited service exists, the MODEM unit sends an emergency signal instruction to the WIFI unit, and the MODEM unit and the MCU unit communicate through a UART port; the device comprises:

the analysis module is configured to analyze the received emergency signal instruction and generate an emergency broadcast message, wherein the emergency broadcast message is a Service Set Identifier (SSID) group;

a broadcasting module configured to broadcast the emergency broadcast message according to the determined broadcasting mode; determining the number of bytes used for sending the emergency broadcast message, when the number of bytes is greater than a preset value, using a plurality of Service Set Identifiers (SSIDs) to represent the emergency broadcast message, and when the number of bytes is less than or equal to the preset value, using a single Service Set Identifier (SSID) to represent the emergency broadcast message;

the broadcast module is further configured to:

10. The apparatus of claim 9, wherein: the determination module is further configured to: and calibrating the emergency event level for the emergency signal instruction.

11. The apparatus of claim 10, wherein: the determining module determining a broadcast mode of an emergency broadcast message comprises:

12. The apparatus of claim 11, wherein: the determination module determines a broadcast mode of an emergency broadcast message based on the emergency ranking includes at least one of:

13. An apparatus for broadcasting alarm in a vehicle, which is provided in a MODEM, comprising:

the matching module is used for receiving an event reported by the micro-control MCU unit, matching an emergency signal of the event and generating an emergency signal instruction, and the MODEM unit and the MCU unit communicate through a UART port, wherein a corresponding relation table of the event and the emergency signal is preset in the MODEM unit;

the instruction module is set to send the emergency signal instruction to the wireless fidelity (WIFI) unit when a communication network does not exist or limited service exists;

14. The apparatus of claim 13, wherein: further comprising:

15. The apparatus of claim 13, wherein: the instruction module does not broadcast the event as an emergency event when the matching module fails to match the emergency signal of the event.