System and method for vehicle emergency call system backup battery storage and transportation

Abstract

The invention discloses a system and a method for storing and transporting a standby battery of a vehicle emergency call system. The system comprises a plug module, a socket module, a standby battery module, an MCU module, a battery charging module and a battery discharging module, the plug module is used as a connector to be matched with the socket module, the plug module comprises a plurality of pins, and two of the pins are short-circuited; the socket module is used as an external connector of the ECALL system, the socket module comprises two ports corresponding to pins of the plug module, the two ports are the first port and the second port respectively, the first port is connected with the positive electrode of the standby battery module, and the second port is connected with the positive electrode of the ECALL system; and the negative electrode of the standby battery module is connected with the negative electrode of the ECALL system. In the storage and transportation processes of the ECALL system, the standby battery is always in a disconnected state, the battery in the disconnected state can be stored for a long time, the storage time of the ECALL system is greatly prolonged, and storage and transportation management of the ECALL system is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted networking systems, and in particular to a system and method for storing and transporting backup batteries for vehicle emergency call systems. Background Art

[0002] Since the 1990s, cars and communications have become intertwined, with vehicles gradually being equipped with 2G, 3G, and 4G mobile communication devices. These devices have gradually enabled communication-based services such as navigation and information notifications. With the advent of 2G cellular communication capabilities, intelligent transportation has made an interesting contribution to traffic safety: Emergency Call (ECALL), often referred to as "emergency rescue." ECALL uses mobile phone and satellite positioning to establish a telephone connection to the nearest rescue center's unified number (such as 122 in China or 112 in the EU) after a traffic accident. In addition to the voice connection, the in-vehicle ECALL system also reports and transmits information about the accident location, type, and vehicle.

[0003] Before the ECALL system appeared, accident information could not be transmitted to the rescue center in a timely manner after the accident occurred, and there was no way to effectively dispatch fire, medical and public security personnel to provide treatment, resulting in many lives being lost at the accident scene.

[0004] The existing ECALL system contains a backup battery, which can support 10 minutes of talk time and 10 hours of standby time in the event of a power outage. Figure 1 As shown, the ECALL system is a sealed device. When not installed on a vehicle, the backup battery's positive terminal is electrically connected to the ECALL system's positive terminal, and its negative terminal is electrically connected to the ECALL system's negative terminal. This means the backup battery is constantly draining power. Although its current consumption is low, it cannot withstand extended periods of use, making it difficult to store and transport the ECALL system. If stored for even a short period, the backup battery will lose power, potentially rendering the ECALL system inoperable before it is even installed on the vehicle. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a system and method for storing and transporting backup batteries for vehicle emergency call systems. The system allows the backup batteries of the ECALL system to be always in a disconnected state during storage and transportation. The batteries in the disconnected state can be stored for a long time, greatly extending the storage time of the ECALL system and facilitating the storage and transportation management of the ECALL system.

[0006] The object of the present invention is achieved in one aspect as follows: a system for storing and transporting backup batteries for a vehicle emergency call system, comprising a plug module arranged outside the ECALL system and a socket module arranged inside the ECALL system, a backup battery module, an MCU module, a battery charging module, and a battery discharging module; The plug module is used as a connector to match the socket module. The plug module includes a plurality of pins, two of which are short-circuited. The socket module is used as an external connector of the ECALL system. The socket module includes two ports corresponding to the pins of the plug module, namely port 1 and port 2. The port 1 is connected to the positive electrode of the backup battery module, and the port 2 is connected to the positive electrode of the ECALL system. The negative pole of the backup battery module is connected to the negative pole of the ECALL system; The MCU module is used to detect whether there is a voltage signal on the second port of the socket module, and control the operation of the battery charging module and the battery discharging module in the ECALL system.

[0007] Furthermore, the backup battery module includes a backup battery socket J3 and a voltage detection circuit. The backup battery socket J3 is connected to a backup battery, and pin 1 of the backup battery socket J3 is connected to the port NI-H_BAT1 of the socket module.

[0008] Furthermore, the voltage detection circuit includes a voltage signal detection terminal NI-H_BAT_AD, which is connected to the port NI-H_BAT2 of the socket module via a resistor R35, and the voltage signal detection terminal NI-H_BAT_AD is electrically connected to the MCU module.

[0009] Furthermore, the socket module includes a port NI-H_BAT1 and a port NI-H_BAT2.

[0010] Furthermore, the battery charging module is used to charge the backup battery, and the MCU module manages the charging of the backup battery to keep the power of the backup battery above 80%.

[0011] Furthermore, the battery discharge module is used to supply power to the ECALL system when the car has no power. When the MCU module detects that the car has no power, it turns on the discharge system to supply power to the ECALL system.

[0012] Furthermore, it also includes an ECALL unit arranged in the ECALL system; the ECALL unit is used to initiate communication with the emergency center, dial the call center phone, and report vehicle information and positioning information to the call center when an emergency occurs in the vehicle.

[0013] Another aspect of the present invention is achieved by providing a method for storing and transporting a backup battery for a vehicle emergency call system, comprising the following steps: 1) Randomly select two free pins in the plug module and short-circuit them; 2) The socket module includes two ports corresponding to the pins of the plug module, namely port 1 and port 2. Connect port 1 to the positive terminal of the backup battery module, and connect port 2 to the positive terminal of the ECALL system; 3) Connect the negative terminal of the backup battery module to the negative terminal of the ECALL system; 4) The MCU module controls the operation of the battery charging module and the battery discharging module in the ECALL system according to the voltage signal detected at the second port of the socket module.

[0014] Furthermore, step 4) specifically includes: when the plug module is connected to the socket module in the ECALL system, the positive pole of the backup battery is connected through port 1 and port 2 of the socket module; at this time, the MCU module detects that there is voltage on port 2 of the socket module, thereby turning on the battery charging system and the battery discharging system; when the socket module is not connected to the plug module, port 1 and port 2 of the socket module are disconnected.

[0015] Furthermore, when the battery charging module charges the backup battery, constant current charging is performed when the power of the backup battery is lower than 80%, and pulse charging is performed when the power of the backup battery is higher than 80% until it is fully charged.

[0016] The present invention employs the above technical solution, and compared to the prior art, has the following beneficial effects: two pins of the external plug of the ECALL system are short-circuited, and the socket module within the ECALL system includes two ports, port 1 and port 2, corresponding to the pins of the plug module. Port 1 is connected to the positive terminal of the backup battery module, and port 2 is connected to the positive terminal of the ECALL system; the negative terminal of the backup battery module is connected to the negative terminal of the ECALL system. The present invention allows the backup battery in the ECALL system to only be charged and discharged during the production process and after installation on the vehicle, thus opening the battery path and enabling normal battery operation, significantly improving battery life. The present invention allows the backup battery to remain disconnected during storage and transportation of the ECALL system, allowing the battery to be stored for extended periods of time, significantly extending the storage time of the ECALL system and facilitating storage and transportation management of the ECALL system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Block diagram of an ECALL system in the prior art.

[0018] Figure 2 Block diagram of the ECALL system of the present invention.

[0019] Figure 3 A schematic circuit diagram of the plug module in the present invention.

[0020] Figure 4 A schematic circuit diagram of the socket module in the present invention.

[0021] Figure 5 A schematic circuit diagram of the backup battery module in the present invention.

[0022] Figure 6 Schematic diagram of the battery charging module circuit in the present invention.

[0023] Figure 7 Schematic diagram of the battery charging module circuit in the present invention. DETAILED DESCRIPTION

[0024] like Figure 2 A system for storing and transporting backup batteries for a vehicle emergency call system is shown, comprising a plug module disposed outside the ECALL system and a socket module disposed within the ECALL system, a backup battery module, an MCU module, a battery charging module, a battery discharging module, and an ECALL unit; The plug module is used as a connector to match the socket module. The plug module includes multiple pins, two of which are short-circuited; Figure 3 As shown, in this embodiment, pins 39 and 40 of the chip J1 are short-circuited. When the plug is connected to the socket, the port NI-H_BAT1 and the port NI-H_BAT2 of the socket module are short-circuited. At this time, the backup battery module is in a connected state.

[0025] The socket module is used as the external connector of the ECALL system, such as Figure 4 As shown, the socket module includes two ports corresponding to the pins of the plug module, namely port 1 and port 2. Port 1 is connected to the positive pole of the backup battery module, and port 2 is connected to the positive pole of the ECALL system; the socket module includes port NI-H_BAT1 and port NI-H_BAT2.

[0026] The negative terminal of the backup battery module is connected to the negative terminal of the ECALL system; Figure 5 As shown, the backup battery module includes a backup battery socket J3 and a voltage detection circuit. The backup battery socket J3 is connected to the backup battery, and pin 1 of the backup battery socket J3 is connected to the port NI-H_BAT1 of the socket module; The voltage detection circuit includes a voltage signal detection terminal NI-H_BAT_AD, which is connected to the port NI-H_BAT2 of the socket module through a resistor R35. The voltage signal detection terminal NI-H_BAT_AD is electrically connected to the MCU module. When the port NI-H_BAT1 and the port NI-H_BAT2 are short-circuited, the MCU module will detect the voltage of NI-H_BAT_AD.

[0027] The MCU module is used to detect whether there is a voltage signal on port 2 of the socket module and control the operation of the battery charging module and the battery discharging module in the ECALL system.

[0028] like Figure 6 As shown, the battery charging module is used to charge the backup battery. The MCU module manages the charging of the backup battery to keep the power of the backup battery above 80%. When the battery charging module charges the backup battery, constant current charging is performed when the power of the backup battery is lower than 80%, and pulse charging is performed when the power of the backup battery is higher than 80% until it is fully charged.

[0029] like Figure 7 As shown, the battery discharge module is used to power the ECALL system when the car has no power. When the MCU module detects that the car has no power, it turns on the discharge system to power the ECALL system.

[0030] The ECALL unit is used to initiate communication with the emergency center, dial the call center number, and report vehicle information and location information to the call center when an emergency occurs in the vehicle.

[0031] A method for storing and transporting backup batteries for a vehicle emergency call system comprises the following steps: 1) Randomly select two free pins in the plug module and short-circuit them; 2) The socket module includes two ports corresponding to the pins of the plug module, namely port 1 and port 2. Connect port 1 to the positive terminal of the backup battery module, and connect port 2 to the positive terminal of the ECALL system; 3) Connect the negative terminal of the backup battery module to the negative terminal of the ECALL system; 4) The MCU module controls the operation of the battery charging module and the battery discharging module in the ECALL system according to the voltage signal detected at the second port of the socket module; When the plug module is connected to the socket module in the ECALL system, the positive pole of the backup battery is connected through port 1 and port 2 of the socket module; at this time, the MCU module detects that there is voltage on port 2 of the socket module, thereby turning on the battery charging system and the battery discharging system; when the socket module is not connected to the plug module, port 1 and port 2 of the socket module are disconnected.

[0032] When the ECALL system is not connected to the plug or installed on the vehicle, whether in storage or transportation, the ECALL system's backup battery is in a disconnected state. The battery's self-discharge cycle in the disconnected state is very long, up to 6-12 months. This ensures the long-term storage or transportation requirements of the ECALL system and effectively avoids the problem of ECALL system backup battery depletion.

[0033] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some of the technical features therein according to the disclosed technical content without creative labor, and these substitutions and modifications are all within the protection scope of the present invention.

Claims

1. A system for storing and transporting backup batteries for vehicle emergency call systems, comprising a plug module disposed outside the ECALL system, a socket module disposed within the ECALL system, a backup battery module, an MCU module, a battery charging module, and a battery discharging module; characterized in that: The plug module is used as a connector to match the socket module. The plug module includes a plurality of pins, two of which are short-circuited. The socket module is used as an external connector of the ECALL system. The socket module includes two ports corresponding to the pins of the plug module, namely port 1 and port 2. The port 1 is connected to the positive electrode of the backup battery module, and the port 2 is connected to the positive electrode of the ECALL system. The negative pole of the backup battery module is connected to the negative pole of the ECALL system; The MCU module is used to detect whether there is a voltage signal on the second port of the socket module, and control the operation of the battery charging module and the battery discharging module in the ECALL system.

2. The system for storing and transporting backup batteries for vehicle emergency call systems according to claim 1, characterized in that: The backup battery module includes a backup battery socket J3 and a voltage detection circuit. The backup battery socket J3 is connected to a backup battery. Pin 1 of the backup battery socket J3 is connected to the port NI-H_BAT1 of the socket module.

3. The system for storing and transporting backup batteries for vehicle emergency call systems according to claim 2, characterized in that: The voltage detection circuit includes a voltage signal detection terminal NI-H_BAT_AD, which is connected to the port NI-H_BAT2 of the socket module via a resistor R35. The voltage signal detection terminal NI-H_BAT_AD is electrically connected to the MCU module.

4. The system for storing and transporting backup batteries for vehicle emergency call systems according to claim 1, characterized in that: The socket module includes a port NI-H_BAT1 and a port NI-H_BAT2.

5. The system for storing and transporting backup batteries for vehicle emergency call systems according to claim 1, characterized in that: The battery charging module is used to charge the backup battery and manage the backup battery charging through the MCU module to keep the backup battery power level above 80%.

6. The system for storing and transporting backup batteries for vehicle emergency call systems according to claim 1, characterized in that: The battery discharge module is used to supply power to the ECALL system when the car has no power. When the MCU module detects that the car has no power, it turns on the discharge system to supply power to the ECALL system.

7. The system for storing and transporting backup batteries for vehicle emergency call systems according to claim 1, characterized in that: It also includes an ECALL unit set in the ECALL system; the ECALL unit is used to initiate communication with the emergency center, dial the call center number, and report vehicle information and positioning information to the call center when an emergency occurs in the vehicle.

8. A method for storing and transporting backup batteries for vehicle emergency call systems, characterized in that: The following steps are involved: 1) Randomly select two free pins in the plug module and short-circuit them; 2) The socket module includes two ports corresponding to the pins of the plug module, namely port 1 and port 2. Connect port 1 to the positive terminal of the backup battery module, and connect port 2 to the positive terminal of the ECALL system; 3) Connect the negative terminal of the backup battery module to the negative terminal of the ECALL system; 4) The MCU module controls the operation of the battery charging module and the battery discharging module in the ECALL system according to the voltage signal detected at the second port of the socket module.

9. The method for storing and transporting a backup battery for a vehicle emergency call system according to claim 8, characterized in that: The step 4) specifically includes: when the plug module is connected to the socket module in the ECALL system, the positive electrode of the backup battery is connected through port 1 and port 2 of the socket module; at this time, the MCU module detects that there is voltage on port 2 of the socket module, thereby turning on the battery charging system and the battery discharging system; when the socket module is not connected to the plug module, port 1 and port 2 of the socket module are disconnected.

10. The method for storing and transporting a backup battery for a vehicle emergency call system according to claim 8, characterized in that: When the battery charging module charges the backup battery, constant current charging is performed when the power level of the backup battery is lower than 80%, and pulse charging is performed when the power level of the backup battery is higher than 80% until the backup battery is fully charged.

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