CN105235542B - A kind of batteries of electric automobile monitoring system and monitoring method based on information security - Google Patents

Abstract

The present invention provides an electric vehicle battery monitoring system based on information security, which includes a mobile power supply device and a terminal device, the mobile power supply device includes a battery box, a battery and a controller arranged inside the battery box, and the controller It includes a central processing unit, a communication unit communicated with the central processing unit, a battery monitoring module, a battery authentication module and a battery information monitoring module. The invention provides an electric vehicle battery monitoring system based on information security, which can adjust the battery power, monitor the battery state and store and authenticate the security information. In addition, the present invention also provides a monitoring method for electric vehicle batteries. When the real-time position of the mobile power device exceeds the position threshold, the alarm unit sends out an alarm signal. After receiving the alarm signal, the remote monitoring device sends the mobile power device abnormal signal, thus effectively ensuring the safety of electric vehicle batteries.

Description

An electric vehicle battery monitoring system and monitoring method based on information security

technical field

The invention relates to the field of electric vehicles, in particular to an electric vehicle battery monitoring system based on information security.

Background technique

In recent years, the research and development of electric vehicles in China has entered a stage of comprehensive development, and the electric vehicle market has begun to emerge. After more than ten years of development, the domestic electric vehicle industry has grown rapidly, from weak to strong, and is unique among many industries in China.

In order to standardize and promote the development of electric vehicles, realize the rapid replenishment of electric energy for electric vehicles, and reduce the waiting time of electric vehicles in the charging station, it is currently possible to replace batteries to achieve electric energy supplementation for electric vehicles. As a high-power electricity load, the electric vehicle charging station will increase the difficulty of peak regulation of the national grid if it is allowed to be used without restraint, and will have an impact on the grid. By replacing the battery, the charging station will charge the replaced battery pack at a unified and reasonable time period, which can play an auxiliary role in the peak-shaving and valley-filling of the power grid.

Therefore, electric vehicle battery information security monitoring is particularly important. Electric vehicle battery replacement solutions based on information security technology can meet users' differentiated needs for different battery replacement modes, ensure the safety of electric vehicle users' electricity consumption, and facilitate users to pay for electricity. Contribute to the promotion and popularization of electric vehicles and smart electricity consumption. But now, there is still no unified monitoring information to monitor the batteries of electric vehicles, and the safety of battery information of electric vehicles cannot be guaranteed. On the other hand, existing charging stations cannot manage their batteries in a unified manner, and batteries are likely to be lost, which is not conducive to the unified management of power stations.

Contents of the invention

In order to solve the above-mentioned information security problems existing in the existing electric vehicle batteries, the present invention provides an electric vehicle battery monitoring system based on information security, which can adjust battery power, monitor battery status, and store and authenticate security information. While realizing the positioning of the battery, it is convenient for unified management and safety monitoring of the battery.

Specifically, the present invention provides an electric vehicle battery monitoring system based on information security, including a mobile power supply device and a terminal device, the mobile power supply device includes a battery box, a battery and a controller arranged in the battery box, the The controller includes a central processing unit, a communication unit communicated with the central processing unit, a battery monitoring module, a battery authentication module, and a battery information monitoring module. The controller is an intelligent chip, wherein:

The central processing unit is connected to a remote monitoring device through a communication unit, and the remote monitoring device is located in the terminal device and is provided with an alarm unit;

The battery monitoring module includes a power supply unit, a single-chip microcomputer, an analog-to-digital converter, a power acquisition circuit, and a charge and discharge management chip;

The battery authentication module is provided with a sensing device for authenticating the electric vehicle battery and the charging station used; and

The battery information monitoring module includes a communication encryption unit and a GPS positioning unit, the communication encryption unit is used to encrypt the battery information of the mobile power supply device, the GPS positioning unit communicates with the alarm unit, and the GPS The positioning unit is used to locate the mobile power supply device and obtain the real-time position. The mobile power supply device sends the real-time position to the alarm unit, and the alarm unit is preset with a position threshold of the mobile power supply device. When When the real-time position of the mobile power supply device exceeds the position threshold, the alarm unit sends out an alarm signal.

Preferably, the communication encryption unit encrypts the battery information according to a preset encryption mode.

Preferably, the charging interface of the battery is connected to the charging port of the charge and discharge management chip, the discharge port of the charge and discharge management chip is connected to the power supply unit, and the output terminal of the power collection circuit is connected to the analog-to-digital converter input terminal.

Preferably, the sensing device includes a radio frequency sensing device, the radio frequency sensing device includes a radio frequency transmitter set on the smart chip and a radio frequency receiver set on the terminal device, and the radio frequency transmitter can send The radio frequency receiver transmits radio frequency signals.

Advantageously, said radio frequency signal includes an authentication signal.

Preferably, the induction device includes an audio authentication device, and the audio authentication device includes:

A sending module, configured to send an authentication signal;

An encoding module, configured to encode the authentication signal in a preset encoding manner to obtain an audio signal;

a receiving module, configured to receive the audio signal; and

An authentication module, configured to authenticate the audio signal to determine whether the mobile power supply matches the terminal device.

Preferably, the sensing device includes a signal sending device, the signal sending device is connected to the terminal device through a data line, and sends an authentication signal to the terminal device through a wireless network or a wired network.

Preferably, the induction device further includes a signal encryption unit, and the signal encryption unit encrypts the authentication signal by using an endorsement key.

The present invention also provides a monitoring method according to the electric vehicle battery monitoring system, which includes the following steps:

S1. The communication encryption unit encrypts the battery information according to the preset encryption mode, the GPS positioning unit locates the mobile power device, obtains the real-time position of the mobile power device, and sends the real-time position to the alarm unit,

S2. The alarm unit compares the real-time position of the mobile power device with the position threshold according to the preset position threshold of the mobile power device;

S3. When the real-time position of the mobile power device exceeds the position threshold, the alarm unit sends an alarm signal, and the remote monitoring device sends an abnormal signal of the mobile power device to the terminal device after receiving the alarm signal; when the real-time position of the mobile power device is between the position threshold When the mobile power supply device needs to be charged or replaced, the mobile power supply device sends an authentication request with an authentication signal to the terminal device, and the terminal device receives the authentication signal sent by the mobile power supply device and authenticates the authentication signal, such as authentication If passed, the mobile power supply device is charged or replaced.

Preferably, the mobile power supply device sends the authentication signal to the terminal device including a radio frequency signal, an audio signal or a data signal.

Advantages of the present invention are as follows:

The invention provides an electric vehicle battery monitoring system based on information security, which can adjust the battery power, monitor the battery state and store and authenticate the security information. The battery authentication module authenticates the battery and its corresponding charging station to determine whether the mobile battery can be replaced at the corresponding charging station. If the authentication information passes, the mobile battery has the right to be replaced at the certified charging station. If If the authentication information fails, the mobile battery is not authorized to be replaced at the certified charging station. The battery information monitoring module performs security monitoring on the battery information, and sends an alarm message to the remote control device when a security problem occurs, ensuring the information security and ownership security of the battery.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic block diagram of the present invention;

Fig. 3 is a structural schematic block diagram of the controller of the present invention;

Fig. 4 is a structural schematic diagram of an embodiment of the induction device of the present invention;

5 is a schematic structural view of another embodiment of the sensing device of the present invention;

Fig. 6 is a schematic block diagram of the structure of the battery information monitoring module of the present invention;

Fig. 7 is a schematic block diagram of the structure of the battery monitoring module of the present invention;

Fig. 8 is a schematic diagram of the workflow of the present invention.

detailed description

The structure and working principle of the present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments:

Specifically, the present invention provides a battery monitoring system for electric vehicles based on information security, as shown in Figure 1 and Figure 2, it includes a mobile power supply device 1 and a terminal device 2, the mobile power supply device 1 includes a battery box 11 and a The battery 12 and the controller 13 in the box, in a specific embodiment, the terminal device 2 is the charging pile of the charging station 4 . The terminal device 2 can authenticate the mobile power supply device and monitor the information security of the mobile power supply device 1 .

As shown in FIG. 3 , the controller 13 includes a central processing unit 131 , a communication unit 132 communicated with the central processing unit 131 , a battery monitoring module 133 , a battery authentication module 134 and a battery information monitoring module 135 .

The central processing unit 131 is connected to a remote monitoring device 3 through the communication unit 132, and the remote monitoring device 3 is set inside the charging station 4, so that the staff can monitor and process in time.

The battery authentication module 134 is provided with a sensing device 5, and the sensing device 5 is used to authenticate the battery and its corresponding charging station 4, so as to determine whether the mobile battery 1 can be replaced at the corresponding charging station 4. If the authentication information passes, then The mobile battery 1 has the right to be replaced at the certified charging station 4 , and if the authentication information fails, the mobile battery 1 has no right to be replaced at the certified charging station 4 .

In one embodiment, as shown in FIG. 4, the sensing device 5 is a radio frequency sensing device 5', and the radio frequency sensing device 5' includes a radio frequency transmitter 51 disposed on the smart chip 130 and a radio frequency receiver disposed on the terminal device 2 52 . The radio frequency transmitter 51 can send radio frequency signals to the radio frequency receiver 52 . The radio frequency signal includes an authentication signal, and the authentication signal can be the serial number of the battery, the user's identity information or other data that can indicate the information of the battery's attribution.

The method for authentication includes the following steps:

S1. The radio frequency transmitter sends a radio frequency signal with an authentication signal to the terminal device, for example, the radio frequency transmitter 51 of the mobile battery 1 sends the battery number of the battery to the charging pile;

S2. The signal encryption unit encrypts the authentication signal. For example, the signal encryption unit encrypts the radio frequency signal with the battery number according to an encryption algorithm.

S3. Receive the authentication signal sent by the mobile power supply device, and authenticate the authentication signal. If the authentication information, that is, the battery number authentication is passed, then the mobile battery 1 has the right to be replaced at the certified charging station 4; Station 4 for replacement.

In another embodiment, as shown in FIG. 5 , preferably, the sensing device 5 is an audio authentication device 5 ", and the audio authentication device 5 " includes: a sending module 53 for sending an authentication signal; an encoding module 54 for According to the authentication signal, the authentication signal is encoded by a preset code to obtain an audio signal; the receiving module 55 is used to receive the audio signal; the authentication module 56 is used to authenticate the encoded audio signal to determine the mobile power device Whether 1 matches terminal device 2.

The certification process includes the following steps:

S1. The sending module sends an authentication signal to the terminal device, where the authentication signal may be the identity information of the user.

S2. The encoding module encodes the authentication signal through a preset encoding to obtain an audio signal;

S3. The receiving module receives the audio signal, and the authentication module authenticates the encoded audio signal to determine whether the mobile power supply matches the terminal device. If the authentication information, that is, the user's identity information authentication is passed, then the mobile battery 1 has the right to be replaced at the authenticated charging station 4; The certified charging station 4 is replaced.

In other embodiments, the sensing device is a signal sending device, the signal sending device is connected to the terminal device through a data line, and sends an authentication signal to the terminal device through a wireless network or a wired network.

The induction device 5 also includes a signal encryption unit 511, which is used to encrypt the authentication signal, and the signal encryption unit 511 encrypts the authentication signal through the endorsement key, which is randomly unique when the carrier chip of the signal encryption unit leaves the factory generated and cannot be changed.

As shown in Figure 6, the battery information monitoring module 135 includes a communication encryption unit 1351, a GPS positioning unit 1352, an alarm unit 1353 is arranged inside the remote monitoring terminal 3, and the communication encryption unit 1351, the GPS positioning unit 1352 and the alarm unit 1353 can communicate with each other for data communication.

The communication encryption unit 1351 is used to encrypt the information of the mobile power supply device 1 , and the communication encryption unit 1351 can encrypt the information of the mobile power supply device 1 according to a specific encryption algorithm to ensure the security of the information of the mobile power supply device 1 .

The GPS positioning unit 1352 is used to locate the mobile power supply device 1 and acquire the real-time position of the mobile power supply device 1. For example, when the mobile power supply device 1 is traveling, the GPS positioning unit 1352 will perform real-time positioning on the position of the mobile power supply device 1, Obtain the real-time geographic location of the mobile power supply device 1 and send the real-time geographic location to the alarm unit 1353 .

The alarm unit 1353 is set inside the remote monitoring device 3, and the position threshold of the mobile power device 1 is preset inside the alarm unit 1353, and the position threshold is the maximum moving distance value of the mobile power device 1. When monitoring and alarming, when the real-time geographic location of the mobile power supply device 1 exceeds the position threshold, the alarm unit 1353 sends an alarm signal to the remote monitoring device 3, and the staff can process the alarm signal on the remote monitoring device 3 to ensure that the mobile power supply The device 1 is not taken away from its preset location range, so as to prevent the mobile power device belonging to the charging station from being lost.

It specifically includes the following steps:

The communication encryption unit 1351 encrypts the battery information according to a preset encryption mode;

The GPS positioning unit 1352 locates the mobile power device, and acquires the real-time position of the mobile power device;

The alarm unit 1353 sends an alarm signal to the remote monitoring device when the real-time position of the mobile power device exceeds the position threshold according to the preset mobile power device location threshold.

Preferably, as shown in FIG. 7 , the battery monitoring module 133 includes a power supply unit 1331, a single-chip microcomputer 1332, an analog-to-digital converter 1333, a power acquisition circuit 1334, and a charging and discharging management chip 1335, and the charging interface of the battery 12 is connected to the charging and discharging management chip 1335. The charging port, the discharging port of the charging and discharging management chip 1335 is connected to the power supply unit 1331 , and the output terminal of the power collection circuit 1334 is connected to the input terminal 1333 of the analog-to-digital converter.

Preferably, the present invention also provides a method for monitoring battery information security based on the above-mentioned system, the method is executed on the side of the mobile power supply device, as shown in FIG. 8 , which includes the following steps:

S1. The communication encryption unit encrypts the battery information according to the preset encryption mode, and the GPS positioning unit locates the mobile power device to obtain the real-time position of the mobile power device;

S2. The alarm unit sends an alarm signal to the remote monitoring device when the real-time position of the mobile power device exceeds the position threshold according to the preset mobile power device position threshold;

S3. After receiving the alarm signal, the remote monitoring device sends an abnormal signal of the mobile power device to the charging pile of the terminal equipment, and the charging pile stores the abnormal signal, and the mobile power device with the abnormal signal needs to be detected when charging or replacing And re-edit the authentication signal;

S4. When the mobile power supply device in the normal state needs to be charged or replaced, the mobile power supply device sends an authentication request with an authentication signal to the terminal device, and the terminal device receives the authentication signal sent by the mobile power supply device and authenticates the authentication signal. If the authentication is passed, the mobile power supply device is charged or replaced.

The invention provides an electric vehicle battery monitoring system based on information security, which can adjust the battery power, monitor the battery state and store and authenticate the safety information. The battery authentication module authenticates the battery and its corresponding charging station to determine whether the mobile battery can be replaced at the corresponding charging station. If the authentication information passes, the mobile battery has the right to be replaced at the certified charging station. If If the authentication information fails, the mobile battery is not authorized to be replaced at the certified charging station. The battery information monitoring module performs security monitoring on the battery information, and sends an alarm message to the remote control device when a security problem occurs, ensuring the information security and ownership security of the battery.

Finally, it should be noted that: the above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention range.

Claims (8)

1. a kind of batteries of electric automobile monitoring system based on information security, including portable power source device and terminal device, described Portable power source device includes battery case, the battery and controller being arranged in the battery case, it is characterised in that：The controller Recognize including CPU and with communication unit, battery cell monitoring module, the battery of CPU communication connection It is intelligent chip to demonstrate,prove module and battery information monitoring modular, the controller, wherein：

The CPU connects long-distance monitorng device by communication unit, and the long-distance monitorng device is located at the terminal In equipment and it is provided with alarm unit；

The battery cell monitoring module includes power subsystem, single-chip microcomputer, analog-to-digital conversion device, electric quantity acquisition circuit and management of charging and discharging Chip；

The battery authentication module is provided with induction installation, and the induction installation is used for the batteries of electric automobile and its use Charging station be authenticated, to judge whether the battery can be changed in corresponding charging station, as authentication information by, then should Battery has the right to be changed in the charging station that this is authenticated, if authentication information is by the way that the battery is had no right in the progress The charging station of certification is changed；And

The battery information monitoring modular includes communication encryption unit and GPS positioning unit, and the communication encryption unit is used for pair The battery information of the portable power source device is encrypted, and the GPS positioning unit connects with alarm unit communication, described GPS positioning unit is used to position the portable power source device and obtain real time position, and the portable power source device will be real When position send to the alarm unit, the alarm unit internal preset and have the position threshold of the portable power source device, when When the real time position of portable power source device exceeds position threshold, the alarm unit sends alarm signal;

The charging inlet of the battery connects the charge port of the management of charging and discharging chip, the electric discharge of the management of charging and discharging chip Mouth connects the power subsystem, and the output end of the electric quantity acquisition circuit connects the input of the analog-to-digital conversion device；

The induction installation also includes signal encryption unit, and the signal encryption unit is by endorsement key to the authentication signal It is encrypted, endorsement key is random uniquely generated when the carrier chip of signal encryption unit is dispatched from the factory and can not change.

2. the batteries of electric automobile monitoring system according to claim 1 based on information security, it is characterised in that：It is described logical The battery information is encrypted according to encryption mode set in advance for letter ciphering unit.

3. the batteries of electric automobile monitoring system according to claim 1 based on information security, it is characterised in that：The sense Answering device includes radio frequency induction device, the radio frequency induction device include the radiofrequency launcher that is arranged on the intelligent chip with And the radio frequency receiver on the terminal device is arranged on, the radiofrequency launcher can send radio frequency to the radio frequency receiver Signal.

4. the batteries of electric automobile monitoring system according to claim 3 based on information security, it is characterised in that：It is described to penetrate Frequency signal includes authentication signal.

5. the batteries of electric automobile monitoring system according to claim 1 based on information security, it is characterised in that：The sense Device is answered to include audio authentication device, the audio authentication device includes：

Sending module, for sending authentication signal；

Coding module, for being encoded to obtain audio signal to the authentication signal by pre-arranged code mode；

Receiving module, for receiving the audio signal；And

Authentication module, for being authenticated to the audio signal, to judge the portable power source device and the terminal device Whether match.

6. the batteries of electric automobile monitoring system according to claim 1 based on information security, it is characterised in that：The sense Device is answered to include sender unit, the sender unit connects the terminal device by data wire, and by wireless Network or cable network send authentication signal to the terminal device.

A kind of 7. monitoring method that batteries of electric automobile monitoring system according to claim 1 is carried out, it is characterised in that：Its Comprise the following steps：

Battery information is encrypted according to encryption mode set in advance for S1, communication encryption unit, GPS positioning unit pair Portable power source device is positioned, and obtains the real time position of portable power source device, and real time position is sent to alarm unit,

S2, alarm unit are according to the position threshold of default portable power source device, by the real time position of portable power source device and position Threshold value is put to be compared；

S3, when the real time position of portable power source device exceeds position threshold, alarm unit sends alarm signal, remote monitoring dress After putting the signal that receives the report for police service, portable power source device abnormal signal is sent to terminal device；When the real time position of portable power source device When within position threshold, when needing to charge to portable power source device or changed, portable power source device is to terminal device The certification request with authentication signal is sent, terminal device receives the authentication signal that portable power source device is sent, and certification is believed Number it is authenticated, if certification is by then being charged or being changed to the portable power source device.

8. monitoring method according to claim 7, it is characterised in that：It comprises the following steps：

Portable power source device is sent to terminal device includes radiofrequency signal, audio signal or data-signal with authentication signal.