Vehicle-mounted alarm system and control method

Abstract

The invention relates to the technical field of vehicle-mounted alarm, in particular to a vehicle-mounted alarm system and a control method.The vehicle-mounted alarm system comprises a vehicle-mounted alarm device, a main control board is installed in the vehicle-mounted alarm device, a main control chip is installed on the main control board, and a battery is installed on one side of a mainboard; the vehicle-mounted alarm device comprises an audible and visual alarm, a high-precision positioning module, an abnormal state detection module and a vehicle position monitoring module. The whole shell of the vehicle-mounted alarm device is packaged by full aluminum alloy, a main control board, a battery, a loudspeaker and a plug are arranged in the shell, and the whole shell comprises a connector and the like and adopts waterproof design, so that electromagnetic pollution can be resisted, the mechanism is firmer, and the anti-vibration performance is better; wherein the acceleration sensor is mainly used for detecting abnormal vibration of the vehicle-mounted alarm device, and the main control chip is used for analyzing and uploading the abnormal vibration state so as to receive alarm data subsequently.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted alarm technology, and in particular to a vehicle-mounted alarm system and a control method. Background Art

[0002] Vehicle alarm devices, such as car instrument alarms and reversing radar alarms, are subject to strong vibrations in multiple directions during driving. This requires the vehicle alarm device to be able to emit an alarm tone that is higher than the surrounding environment under complex vibration conditions. In order to achieve higher seismic performance, existing alarm devices mainly use metal as the shell material. The metal shell is mostly made of steel plates of a certain thickness (other metal materials are expensive or cannot meet the seismic performance requirements), but the steel shell is in a complex external environment for a long time and is easily corroded after contacting various chemical liquids (such as coolant, engine oil, rainwater, etc.).

[0003] The current vehicle alarm device itself has poor waterproof effect, and is not good at electromagnetic pollution and earthquake resistance. Among them, the abnormal vibration of the vehicle alarm device cannot be solved in time, which affects the use of the vehicle alarm device. A vehicle alarm system and control method are needed to solve this problem. Summary of the invention

[0004] The object of the present invention is to provide a vehicle-mounted alarm system and a control method to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vehicle-mounted alarm system, comprising a vehicle-mounted alarm device, wherein a main control board is installed in the vehicle-mounted alarm device, a main control chip is installed on the main control board, a battery is installed on one side of the main board, and the vehicle-mounted alarm device respectively includes an audible and visual alarm, a high-precision positioning module, an abnormal state detection module and a vehicle position monitoring module.

[0006] As a preferred technical solution of the present invention, a plug is installed on the outside of the vehicle-mounted alarm device, and a speaker is installed inside the vehicle-mounted alarm device.

[0007] As a preferred technical solution of the present invention, the vehicle-mounted alarm device is further provided with an acceleration sensor and a wireless communication module. The acceleration sensor adopts LIS2DH12TR, and LIS2DH12TR is a 3-axis MEMS accelerometer.

[0008] As a preferred technical solution of the present invention, the chip used in the high-precision positioning module is a single Beidou certified single-frequency RTK chip LC29YBD.

[0009] As a preferred technical solution of the present invention, the wireless communication module adopts the E49-400M30S module, wherein the sound and light alarm module is composed of an LED alarm light and a waterproof speaker.

[0010] As a preferred technical solution of the present invention, the main control chip adopts Hezhou's Air724UG-NFM module with an operating voltage of 3.3V to 4.3V.

[0011] As the preferred technical solution of the present invention, the battery is a lithium iron phosphate battery with high energy density, good safety and reliability and rechargeable and recyclable. The voltage operating range is 6-9.6V, the battery pack structure is 3 series and 2 parallel, and the capacity is 3600mAh.

[0012] As a preferred technical solution of the present invention, the following steps are included:

[0013] (1) On-board alarm device, which consists of six parts: power supply, main control, attitude sensor, communication part, sound and light alarm and high-precision positioning. The battery voltage has a power supply range of 6-9.6V. The battery voltage is converted into 3.3V, 4.08V and 5V by LDO chip to power each unit. The main control chip adopts real-time multi-task chip to receive and process the locomotive Bluetooth data, MQTT server data, FSK alarm data, RS485 communication data and Beidou high-precision data in a timely and multi-directional manner, and transmit the processed data to the server in real time through MQTT protocol.

[0014] (2) The sound and light alarm is divided into two parts: first, the vehicle alarm device is connected to the central server through the 4G network and the MQTT protocol, and receives the alarm command and specific alarm content issued by the central server in real time. The vehicle alarm device converts the text into voice and sound and light alarm signals according to the alarm content through the TTS function of the main control system and transmits them to the user; second, when the vehicle alarm device does not receive the alarm command and specific alarm content pushed by the central server, but receives the alarm signal sent by the base station along the line through the FSK system, it will also promptly transmit the alarm signal to the user in the form of sound and light alarm through the main control system;

[0015] (3) After the main control system of the high-precision positioning module receives the positioning data in real time through the LC29YBD high-precision positioning unit, it connects to the differential base station server through the NTRIP protocol to obtain the differential positioning data. The main control unit transmits the differential positioning data to the LC29YBD chip, and the LC29YBD chip automatically calculates the high-precision positioning data, which is then uploaded to the central server by the main control unit in real time.

[0016] (4) The main control unit of the abnormal state detection function obtains the three-axis state information of the vehicle alarm device through the acceleration sensor in real time and determines the abnormal vibration state, and the main control unit uploads the vibration state to the central server in real time;

[0017] (5) The main control unit of the vehicle location monitoring function obtains the vehicle Bluetooth broadcast data through the Bluetooth function, parses the vehicle's kilometer mark information in the data, and uploads it to the central server in real time;

[0018] (6) The acceleration sensor is mainly used to detect abnormal vibrations of the vehicle alarm device, and the main control chip analyzes and uploads the abnormal vibration status; wireless FSK long-distance communication is mainly used when it is unable to connect to the MQTT server. When the alarm data of the FSK base station is received, the system will promptly transmit the FSK alarm information. After the main control chip obtains the high-precision Beidou positioning data, it will promptly obtain the differential data of the nearby base stations through the RTK algorithm and perform fixed solution calculations through the Beidou chip to obtain the final high-precision positioning data. The system will upload the high-precision positioning data to the server.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention is a vehicle-mounted alarm system and control method. The entire housing of the vehicle-mounted alarm device provided by the present invention is packaged in an all-aluminum alloy. The main control board, battery, speaker and plug are built in the housing. The entire housing including connectors is waterproof, which can not only resist electromagnetic pollution but also make the mechanism more solid and have better anti-vibration performance. The acceleration sensor is mainly used to detect abnormal vibration of the vehicle-mounted alarm device, and the main control chip analyzes and uploads the abnormal vibration state to facilitate the subsequent reception of alarm data. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a structural schematic diagram of a vehicle-mounted alarm device according to an embodiment of the present invention;

[0023] Figure 2 is a schematic diagram of the internal structure of a vehicle-mounted alarm device according to an embodiment of the present invention;

[0024] Figure 3 is a system composition diagram of a vehicle-mounted alarm device according to an embodiment of the present invention;

[0025] Figure 4 is a layout diagram of a vehicle-mounted alarm device according to an embodiment of the present invention;

[0026] Figure 5 This is the entire program workflow of the alarm device according to the embodiment of the present invention.

[0027] Reference numerals:

[0028] 1. Vehicle alarm device; 2. Plug; 3. Main control board; 4. Main control chip; 5. Speaker; 6. Battery; 7. Sound and light alarm; 8. High-precision positioning module; 9. Abnormal state detection module; 10. Vehicle position monitoring module; 11. Acceleration sensor; 12. Wireless communication module. DETAILED DESCRIPTION

[0029] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0030] Example 1

[0031] refer to Figures 1 to 4 Embodiment 1 is described, comprising a vehicle-mounted alarm device 1, wherein a main control board 3 is installed in the vehicle-mounted alarm device 1, a main control chip 4 is installed on the main control board 3, a battery 6 is installed on one side of the main board, the vehicle-mounted alarm device 1 comprises an audible and visual alarm 7, a high-precision positioning module 8, an abnormal state detection module 9 and a vehicle position monitoring module 10, a plug 2 is installed on the outside of the vehicle-mounted alarm device 1, and a speaker 5 is installed inside the vehicle-mounted alarm device 1, the vehicle-mounted alarm device 1 is also provided with an acceleration sensor 11 and a wireless communication module 12, the acceleration sensor 11 adopts LIS2DH12TR, and LIS2DH12TR is 3 Axis MEMS accelerometer, the chip used in the high-precision positioning module 8 is the single Beidou certified single-frequency RTK chip LC29YBD, the wireless communication module 12 uses the E49-400M30S module, the sound and light alarm module is composed of an LED alarm light and a waterproof speaker 5, the main control chip 4 is the Air724UG-NFM module of Hezhou, the working voltage is 3.3V to 4.3V, the battery 6 uses a lithium iron phosphate battery 6 with high energy density, good safety and reliability and rechargeable and recyclable, the voltage working range is 6-9.6V, the battery 6 group structure is 3 series and 2 parallel, and the capacity is 3600mAh;

[0032] In this embodiment, the entire housing of the vehicle-mounted alarm device 1 is packaged with a full aluminum alloy, and the entire housing including connectors is waterproof, which can not only resist electromagnetic pollution but also make the mechanism more solid and have better anti-vibration performance.

[0033] Example 2

[0034] refer to Figure 5 Example 2 is described. This embodiment further describes Example 1 and includes the following steps:

[0035] (1) A vehicle alarm device 1, wherein the vehicle alarm device 1 is composed of six parts: power supply, main control, attitude sensor, communication part, sound and light alarm and high-precision positioning; the power supply range of the battery 6 voltage is 6-9.6V, and the battery 6 voltage is converted into 3.3V, 4.08V and 5V respectively through the LDO chip to power each unit; the main control chip 4 adopts a real-time multi-task chip to timely and multi-directionally receive and process locomotive Bluetooth data, MQTT server data, FSK alarm data, RS485 communication data and Beidou high-precision data, and transmit the processed data to the server in real time through the MQTT protocol;

[0036] (2) The sound and light alarm 7 is divided into two parts: first, the vehicle alarm device 1 is connected to the central server through the 4G network and the MQTT protocol, and receives the alarm command and specific alarm content issued by the central server in real time. The vehicle alarm device 1 converts the text into voice and sound and light alarm signals according to the alarm content through the TTS function of the main control system and transmits them to the user; second, when the vehicle alarm device 1 does not receive the alarm command and specific alarm content pushed by the central server, but receives the alarm signal sent by the base station along the line through the FSK system, it will also promptly transmit the alarm signal to the user in the form of sound and light alarm through the main control system;

[0037] (3) After the main control system of the high-precision positioning module 8 receives the positioning data in real time through the LC29YBD high-precision positioning unit, it links the differential base station server through the NTRIP protocol to obtain the differential positioning data. The main control unit transmits the differential positioning data to the LC29YBD chip, and the LC29YBD chip automatically calculates the high-precision positioning data, which is then uploaded to the central server by the main control unit in real time;

[0038] (4) The main control unit of the abnormal state detection function obtains the three-axis state information of the vehicle alarm device 1 through the acceleration sensor 11 in real time and determines the abnormal vibration state, and the main control unit uploads the vibration state to the central server in real time;

[0039] (5) The main control unit of the vehicle location monitoring function obtains the vehicle Bluetooth broadcast data through the Bluetooth function, parses the vehicle's kilometer mark information in the data, and uploads it to the central server in real time;

[0040] (6) The acceleration sensor 11 is mainly used to detect abnormal vibration of the vehicle alarm device 1, and the main control chip 4 analyzes and uploads the abnormal vibration status; the wireless FSK long-distance communication is mainly used when it cannot connect to the MQTT server. When the alarm data of the FSK base station is received, the system transmits the FSK alarm information in a timely manner. After the main control chip 4 obtains the high-precision Beidou positioning data, it will use the RTK algorithm to obtain the differential data of the nearby base stations in a timely manner and use the Beidou chip to perform fixed solution calculation to obtain the final high-precision positioning data. The system uploads the high-precision positioning data to the server;

[0041] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle alarm system, characterized in that: The vehicle-mounted alarm device (1) comprises a main control board (3) installed in the vehicle-mounted alarm device (1), a main control chip (4) installed on the main control board (3), a battery (6) installed on one side of the main board, and the vehicle-mounted alarm device (1) comprises an audible and visual alarm (7), a high-precision positioning module (8), an abnormal state detection module (9) and a vehicle position monitoring module (10).

2. The vehicle alarm system according to claim 1, characterized in that: A plug (2) is installed on the outside of the vehicle-mounted alarm device (1), and a speaker (5) is installed inside the vehicle-mounted alarm device (1).

3. The vehicle alarm system according to claim 1, characterized in that: The vehicle-mounted alarm device (1) is further provided with an acceleration sensor (11) and a wireless communication module (12); the acceleration sensor (11) adopts LIS2DH12TR, and LIS2DH12TR is a 3-axis MEMS accelerometer.

4. The vehicle alarm system according to claim 1, characterized in that: The chip used by the high-precision positioning module (8) is a single Beidou certified single-frequency RTK chip LC29YBD.

5. The vehicle alarm system according to claim 1, characterized in that: The wireless communication module (12) adopts the E49-400M30S module, wherein the sound and light alarm module is composed of an LED alarm light and a waterproof speaker (5).

6. The vehicle alarm system according to claim 1, characterized in that: The main control chip (4) adopts the Air724UG-NFM module of Hezhou, and the operating voltage is 3.3V to 4.3V.

7. The vehicle alarm system according to claim 1, characterized in that: The battery (6) is a lithium iron phosphate battery (6) with high energy density, good safety and reliability and rechargeable and cyclic use, with a voltage operating range of 6-9.6V, a battery (6) group structure of 3 series and 2 parallels, and a capacity of 3600mAh. A vehicle alarm control method, characterized in that: The following steps are involved: (1) A vehicle-mounted alarm device (1), wherein the vehicle-mounted alarm device (1) is composed of six parts: a power supply, a main control, a posture sensor, a communication part, an audible and visual alarm, and a high-precision positioning part; the power supply range of the battery (6) voltage is 6-9.6V, and the battery (6) voltage is converted into 3.3V, 4.08V, and 5V respectively through an LDO chip to power each unit; the main control chip (4) adopts a real-time multi-task chip to timely and multi-directionally receive and process locomotive Bluetooth data, MQTT server data, FSK alarm data, RS485 communication data, and Beidou high-precision data, and transmit the processed data to the server in real time through the MQTT protocol; (2) The sound and light alarm (7) is divided into two parts: first, the vehicle-mounted alarm device (1) is connected to the central server through the 4G network and the MQTT protocol, and receives the alarm command and specific alarm content issued by the central server in real time. The vehicle-mounted alarm device (1) converts the text into voice and sound and light alarm signals according to the alarm content through the TTS function of the main control system and transmits them to the user; second, when the vehicle-mounted alarm device (1) does not receive the alarm command and specific alarm content pushed by the central server but receives the alarm signal sent by the base station along the line through the FSK system, it will also promptly transmit the alarm signal to the user in the form of sound and light alarm through the main control system; (3) After the main control system of the high-precision positioning module (8) receives the positioning data in real time through the LC29YBD high-precision positioning unit, it links to the differential base station server through the NTRIP protocol to obtain the differential positioning data. The main control unit transmits the differential positioning data to the LC29YBD chip, and the LC29YBD chip automatically calculates the high-precision positioning data, which is then uploaded to the central server by the main control unit in real time; (4) The main control unit with abnormal vibration state detection function obtains the three-axis state information of the vehicle-mounted alarm device (1) through the acceleration sensor (11) in real time and determines the abnormal vibration state, and the main control unit uploads the vibration state to the central server in real time; (5) The main control unit of the vehicle location monitoring function obtains the vehicle Bluetooth broadcast data through the Bluetooth function, parses the vehicle's kilometer mark information in the data, and uploads it to the central server in real time; (6) The acceleration sensor (11) is mainly used to detect abnormal vibration of the vehicle alarm device (1), and the main control chip (4) analyzes and uploads the abnormal vibration status; the wireless FSK long-distance communication is mainly used when it is unable to connect to the MQTT server. When the alarm data of the FSK base station is received, the system transmits the FSK alarm information in a timely manner. After the main control chip (4) obtains the high-precision Beidou positioning data, it will promptly obtain the differential data of the nearby base stations through the RTK algorithm and obtain the final high-precision positioning data through the Beidou chip for fixed solution calculation. The system uploads the high-precision positioning data to the server.

Images