CN109955933B - Anti-theft system and method for electric vehicle battery and anti-theft label - Google Patents

Anti-theft system and method for electric vehicle battery and anti-theft label Download PDF

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CN109955933B
CN109955933B CN201711418034.2A CN201711418034A CN109955933B CN 109955933 B CN109955933 B CN 109955933B CN 201711418034 A CN201711418034 A CN 201711418034A CN 109955933 B CN109955933 B CN 109955933B
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battery
data information
radar
electric vehicle
actual
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CN109955933A (en
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陆海涛
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Bear Hunting Safety Technology Shanghai Co ltd
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Bear Hunting Safety Technology Shanghai Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62HCYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
    • B62H5/00Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles
    • B62H5/001Preventing theft of parts or accessories used on cycles, e.g. lamp, dynamo
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62HCYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
    • B62H5/00Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles
    • B62H5/20Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles indicating unauthorised use, e.g. acting on signalling devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Alarm Systems (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

The embodiment of the invention relates to the technical field of communication, and discloses an anti-theft system and method for an electric vehicle battery and an anti-theft label. The anti-theft system of the electric vehicle battery in the invention comprises: the system comprises a server, at least one radar and an anti-theft tag; the anti-theft label is arranged on the battery and used for detecting data information of the battery, and the data information comprises actual voltage between the anode and the cathode of the battery; the radar is used for acquiring data information and sending the data information to the server after the battery of the electric vehicle enters the radiation range of the radar; the server is used for receiving the data information and acquiring the difference value between the actual voltage and the reference voltage according to the data information; whether the difference value is larger than a preset threshold value or not is judged, and after the difference value is judged to be larger than the preset threshold value, alarm information is sent, whether the battery of the electric vehicle is stolen or not can be found in time, and the risk that the battery of the electric vehicle is stolen can be effectively reduced.

Description

Anti-theft system and method for electric vehicle battery and anti-theft label
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to an anti-theft system and method for an electric vehicle battery and an anti-theft label.
Background
The electric vehicle is taken as a green sunward industry, is favored by low-income and low-income levels in cities due to the functional advantages of low price, convenience and environmental protection. Electric bicycles in China have been greatly increased year by year from development to small-lot market in the middle of the nineties of the last century to production and sale in 2012. Due to the vigorous demand, the Chinese electric vehicle market has been kept in leap-type growth in recent years. To date, the market size of electric bicycles has already exceeded 1000 yen, while the market potential of electric vehicle batteries alone exceeds 500 yen.
However, the inventors found that at least the following problems exist in the prior art: because the price of the battery of the electric vehicle accounts for the proportion of the whole electric vehicle is higher, and the difficulty of stealing the battery of the electric vehicle is far lower than that of stealing the electric vehicle, a plurality of thieves can take the idea of stealing the battery of the electric vehicle, and the risk of stealing the battery of the electric vehicle is greatly increased.
Disclosure of Invention
The embodiment of the invention aims to provide an anti-theft system, an anti-theft method and an anti-theft label for an electric vehicle battery, so that whether the electric vehicle battery is stolen or not can be found in time, and the risk of stealing the electric vehicle battery can be effectively reduced.
In order to solve the above technical problem, an embodiment of the present invention provides an anti-theft system for a battery of an electric vehicle, including: the system comprises a server, at least one radar and an anti-theft tag; the anti-theft label is arranged on the battery and used for detecting data information of the battery, and the data information comprises actual voltage between the anode and the cathode of the battery; the radar is used for acquiring data information and sending the data information to the server after the battery enters the radiation range of the radar; the server is used for receiving the data information and acquiring the difference value between the actual voltage and the reference voltage according to the data information; and judging whether the difference is greater than a preset threshold value, and sending alarm information after judging that the difference is greater than the preset threshold value.
The embodiment of the invention also provides an anti-theft method of an electric vehicle battery, which is applied to an anti-theft tag in an anti-theft system of the electric vehicle battery, wherein the anti-theft tag is arranged on the electric vehicle battery and comprises the following steps: detecting data information of the battery, wherein the data information comprises actual voltage between the anode and the cathode of the battery; after the battery is detected to enter the radiation range of the radar, data information is sent to the radar so that the radar can send the data information to a server; the actual voltage is used for the server to obtain a difference value between the actual voltage and the reference voltage, judge whether the difference value is larger than a preset threshold value or not, and send alarm information after judging that the difference value is larger than the preset threshold value.
The embodiment of the present invention further provides an anti-theft tag, which is disposed on a battery of an electric vehicle, and includes: the system comprises a processor, a sensor and a wireless communication module; the sensor is used for detecting data information of the battery, and the data information comprises actual voltage between the anode and the cathode of the battery; the processor is used for sending the data information to the radar through the wireless communication module after detecting that the battery enters the radiation range of the radar so that the radar can send the data information to the server; the actual voltage is used for the server to obtain a difference value between the actual voltage and the reference voltage, judge whether the difference value is larger than a preset threshold value or not, and send alarm information after judging that the difference value is larger than the preset threshold value.
Compared with the prior art, the anti-theft tag is arranged on the battery and used for detecting the data information of the battery, and the data information comprises the actual voltage between the anode and the cathode of the battery, so that the voltage value between the anode and the cathode of the battery can be timely and accurately obtained. The radar is used for obtaining data information and sending the data information to the server after the battery enters the radiation range of the radar, namely when the battery enters the radiation range of the radar, the anti-theft tag on the battery can be activated and read the data information of the battery, and therefore the radar can obtain the data information of the battery and send the data information to the server. The server is used for receiving the data information and acquiring the difference value between the actual voltage and the reference voltage according to the data information; and judging whether the difference is greater than a preset threshold value, and sending alarm information after judging that the difference is greater than the preset threshold value. Because the difference of the voltage between the positive negative pole of electric motor car battery and reference voltage is greater than the battery normal operating's in the electric motor car condition when the battery is stolen, consequently can judge whether stolen through judging whether the difference is greater than and predetermines the threshold value, and send alarm information when judging stolen, be favorable to in time discovering whether stolen of battery of electric motor car, effectively reduce the risk that electric motor car battery was stolen.
In addition, the radar is also used for sending the position information of the radar to the server after the battery enters the radiation range of the radar; the alarm information sent by the server is specifically the alarm information carrying the position information. The server sends the alarm information carrying the position information, so that the position of the battery of the electric vehicle can be tracked in time according to the position information of the radar, and the possibility that the battery is stolen can be tracked according to the position information of the radar is greatly improved.
In addition, the data information also includes the acceleration of the battery; the server is specifically configured to determine whether the actual acceleration is greater than 0 after the difference is determined to be greater than the preset threshold and before the alarm information is sent, and execute sending of the alarm information after the actual acceleration is determined to be greater than 0. Under the common condition, the fact that the actual acceleration of the battery of the electric vehicle is greater than 0 indicates that the battery of the electric vehicle has the acceleration, namely, the battery of the electric vehicle is in the moving state, if the acceleration exists at the same time, the condition that the difference value is greater than the preset threshold value is met, the battery of the electric vehicle can be accurately judged to be stolen, therefore, after the difference value is judged to be greater than the preset threshold value, whether the actual acceleration is greater than 0 is judged, and after the fact that the actual acceleration is greater than 0 is judged, alarm information sending is executed, the accuracy of judging whether the battery of the electric vehicle is stolen is improved, and.
In addition, the radar and the anti-theft tag carry out data communication through a radio frequency identification technology. The radio frequency identification technology can realize non-contact information transmission, is easy to control, has higher flexibility and high identification speed, can be identified as long as the anti-theft tag enters the radiation range of the radar, and is favorable for the radar to quickly and effectively acquire the data information of the battery.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic configuration diagram of an anti-theft system for a battery of an electric vehicle according to a first embodiment of the present invention;
fig. 2 is a flowchart illustrating an anti-theft method of a battery for an electric vehicle according to a third embodiment of the present invention;
fig. 3 is a schematic structural view of an antitheft tag according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
A first embodiment of the present invention relates to an antitheft system for an electric vehicle battery. The core of the embodiment is to provide an anti-theft system for an electric vehicle battery, comprising: the anti-theft tag 101, at least one radar 102 and a server 103; the anti-theft tag 101 is arranged on the battery and used for detecting data information of the battery, wherein the data information comprises actual voltage between the anode and the cathode of the battery; the radar 102 is used for acquiring data information and sending the data information to the server 103 after the battery enters the radiation range of the radar 102; the server 103 is configured to receive the data information, and obtain a difference between the actual voltage and the reference voltage according to the data information; whether the difference value is larger than a preset threshold value or not is judged, and after the difference value is judged to be larger than the preset threshold value, alarm information is sent, whether the battery of the electric vehicle is stolen or not can be found in time, and the risk that the battery of the electric vehicle is stolen can be effectively reduced. The following describes implementation details of the anti-theft system for an electric vehicle battery according to the present embodiment in detail, and the following description is provided only for the sake of understanding and is not necessary for implementing the present embodiment.
Fig. 1 shows a schematic structural diagram of an anti-theft system for an electric vehicle battery according to the present embodiment, which specifically includes:
the anti-theft tag 101 is arranged on the battery and used for detecting data information of the battery, wherein the data information comprises actual voltage between the anode and the cathode of the battery.
For example, the security tag 101 may be attached to a battery of an electric vehicle for detecting data information of the battery, where the data information includes actual voltages between an anode and a cathode of the battery, and a voltage sensor may be disposed in the security tag 101 and detect the actual voltages between the anode and the cathode of the battery.
And the radar 102 is used for acquiring data information and sending the data information to the server 103 after the battery enters the radiation range of the radar 102.
Specifically, the radar 102 is usually disposed at the roadside, and there is a radar at intervals, and since the security tag 101 is attached to the battery, the security tag 101 and the radar 102 can perform data communication by using the radio frequency identification technology. The radar 102 emits electromagnetic wave signals, and after the electromagnetic wave signals collide with the anti-theft tag 101, target information is carried and returned to the radar receiver, and the target information carried can be understood as data information acquired by the radar 102. Or, after receiving the electromagnetic wave signal emitted by the radar 102, the security tag 101 enters the radiation range of the radar 102, and the security tag 101 sends data information to the radar 102. Contactless information transmission can be realized through the radio frequency identification technology, the operation and control are easy, the flexibility is higher, the identification speed is high, the anti-theft tag 101 can be identified as long as the anti-theft tag enters the radiation range of the radar 102, and the rapid and effective acquisition of the data information of the battery by the radar 102 is facilitated. In any case, the radar 102, after acquiring the data information, transmits the data information to the server 103.
The server 103 is used for receiving the data information and acquiring a difference value between the actual voltage and the reference voltage according to the data information; and judging whether the difference is greater than a preset threshold value, and sending alarm information after judging that the difference is greater than the preset threshold value.
Specifically, the server 103 may obtain the difference between the actual voltage and the reference voltage according to the data information after receiving the data information. The reference voltage may be understood as a voltage between the positive electrode and the negative electrode of each battery when each battery leaves a factory, and it may be understood that voltages between the positive electrode and the negative electrode of different batteries manufactured by different manufacturers may be different in practical application, and therefore, the reference voltage may be set by a person skilled in the art according to actual needs. Generally, an electric vehicle has three states, namely normal running, stationary parking and stolen disengagement, and the normal running can include low-speed running, medium-speed running and high-speed running. In general, in the three states, the actual voltage between the positive electrode and the negative electrode is the largest when the battery is stolen, so that the server can obtain the difference between the reference voltage and the actual voltage, and obtain the conclusion that the electric vehicle is stolen by judging whether the difference is greater than the preset threshold value. The preset threshold may be set by those skilled in the art according to actual needs, and for facilitating understanding of the present embodiment by those skilled in the art, the following example is described. The following table 1 shows the actual voltage between the positive electrode and the negative electrode and the reference voltage of the battery detected by the electric vehicle in different states:
state of the battery Reference voltage High speed running Stationary parking Is stolen
Voltage value (V) 12 12.35 12.95 12.98
TABLE 1
It should be noted that the reference voltage in table 1 is only 12V, and normal running is only one of high-speed running, but the present invention is not limited thereto in practical application. As shown in the above table, the preset threshold may be set to 0.96, and then when the first voltage difference between the actual voltage and the reference voltage is greater than 0.96, it may be considered that the battery of the electric vehicle is stolen. In summary, any method for determining whether the battery of the electric vehicle is stolen based on the voltage difference is within the protection scope of the embodiment of the invention.
It is worth mentioning that the server 103 may send alarm information after determining that the difference is greater than the preset threshold, that is, after finding that the battery of the electric vehicle is stolen. The alarm information can be sent to a public security department and also can be sent to the electric vehicle owner, so that related personnel can obtain the alarm information of the electric vehicle theft in time and take corresponding measures. The alarm information that server 103 sent can also carry radar 102's positional information, radar 102 can send the positional information of radar to server 103 after the battery gets into radar 102's radiation range, and the position of electric motor car battery is tracked to the positional information that carried in the alarm information that police department or electric vehicle owner can send according to server 103 to in time retrieve stolen electric motor car battery, improved the possibility of tracking stolen battery according to the positional information of radar greatly.
Compared with the prior art, the anti-theft tag is arranged on the battery and used for detecting the data information of the battery, and the data information comprises the actual voltage between the anode and the cathode of the battery, so that the voltage value between the anode and the cathode of the battery can be timely and accurately obtained. The radar is used for obtaining data information and sending the data information to the server after the battery enters the radiation range of the radar, namely when the battery enters the radiation range of the radar, the anti-theft tag on the battery can be activated and read the data information of the battery, and therefore the radar can obtain the data information of the battery and send the data information to the server. The server is used for receiving the data information and acquiring the difference value between the actual voltage and the reference voltage according to the data information; and judging whether the difference is greater than a preset threshold value, and sending alarm information after judging that the difference is greater than the preset threshold value. Because the difference of the voltage between the positive negative pole of electric motor car battery and reference voltage is greater than the battery normal operating's in the electric motor car condition when the battery is stolen, consequently can judge whether stolen through judging whether the difference is greater than and predetermines the threshold value, and send alarm information when judging stolen, be favorable to in time discovering whether stolen of battery of electric motor car, effectively reduce the risk that electric motor car battery was stolen.
A second embodiment of the present invention relates to an antitheft system for an electric vehicle battery. The second embodiment is a further improvement of the first embodiment, and the main improvements are as follows: the data information also includes the actual acceleration of the battery; the server 103 is specifically configured to determine whether the actual acceleration is greater than 0 after determining that the difference is greater than the preset threshold and before sending the alarm information, and execute sending the alarm information after determining that the actual acceleration is greater than 0. The accuracy of judging whether the electric vehicle battery is stolen is improved, and misjudgment is prevented.
In this embodiment, after determining that the difference is greater than the preset threshold, the server 103 needs to determine whether the actual acceleration is greater than 0, and then executes sending of the alarm information after determining that the actual acceleration is greater than 0.
Specifically, after the battery and the electric vehicle are separated, when a thief walks with the battery, the battery can generate obvious acceleration, namely, the battery of the electric vehicle is in a moving state. If the actual acceleration of the battery of the electric vehicle is larger than 0, the battery of the electric vehicle is accelerated, and if the acceleration exists at the same time and the difference value is larger than the preset threshold value, the condition that the battery of the electric vehicle is stolen can be judged more accurately.
The actual acceleration of the battery may be detected by an acceleration sensor provided in the security tag 101. In practical application, whether the battery of the electric vehicle is stolen can be further judged by judging whether the actual vibration value of the battery is greater than 0. Because the implementation method for further judging whether the battery of the electric vehicle is stolen according to the actual vibration value is substantially the same as the implementation method for further judging whether the battery of the electric vehicle is stolen according to the actual acceleration, the implementation method is not repeated here for avoiding repetition.
Compared with the prior art, the data information in the embodiment of the invention also comprises the actual acceleration of the battery; after the difference value is judged to be larger than the preset threshold value, whether the actual acceleration is larger than 0 or not is judged, and after the actual acceleration is judged to be larger than 0, alarm information is sent out, so that the accuracy of judging whether the electric vehicle battery is stolen or not is improved, and misjudgment can be effectively prevented.
A third embodiment of the present invention relates to an anti-theft method for a battery of an electric vehicle. The core of the embodiment is to provide an anti-theft method for an electric vehicle battery, which is applied to an anti-theft tag in an anti-theft system of the electric vehicle battery, wherein the anti-theft tag is arranged on the electric vehicle battery, and the anti-theft method comprises the following steps: detecting data information of the battery, wherein the data information comprises actual voltage between the anode and the cathode of the battery; after the battery is detected to enter the radiation range of the radar, the data information is sent to the radar so that the radar can send the data information to the server; the actual voltage is used for the server to obtain the difference of actual voltage and reference voltage, judges whether the difference is greater than the predetermined threshold value to judge whether the difference is greater than the predetermined threshold value after, send alarm information, make can in time discover whether stolen the battery of electric motor car, can effectively reduce the risk that the electric motor car battery was stolen.
A flow diagram of an anti-theft method for an electric vehicle battery according to an embodiment of the present invention is shown in fig. 2, and specifically includes:
step 201: data information of the battery is detected.
Specifically, the data information may include an actual voltage between the positive and negative electrodes of the battery, which may be detected by a voltage sensor. The server can obtain a difference value between the actual voltage and the reference voltage, judge whether the difference value is greater than a preset threshold value, and send alarm information after judging that the difference value is greater than the preset threshold value.
It is worth mentioning that the data information can further include an actual acceleration, the actual acceleration can be detected by an acceleration sensor, the server can judge whether the actual acceleration is greater than 0 or not after judging that the difference is greater than the preset threshold value and before sending the alarm information, and then execute the alarm information sending after judging that the actual acceleration is greater than 0.
In practical application, the actual acceleration can also be replaced by an actual vibration value, the actual vibration value can be detected by a vibration sensor, the server can judge whether the actual vibration value is greater than 0 or not after judging that the difference value is greater than the preset threshold value and before sending alarm information, and the server executes to send the alarm information after judging that the actual vibration value is greater than 0.
Step 202: and detecting whether the battery enters the radiation range of the radar, if so, executing the step 203, and if not, ending the process.
For example, a roadside radar can emit an electromagnetic wave signal within a radiation range thereof, and if an anti-theft tag arranged on a battery receives the electromagnetic wave signal emitted by the radar, the battery enters the radiation range of the radar, that is, the anti-theft tag detects that the battery enters the radiation range of the radar. And if the battery enters the radiation range of the radar, executing step 203 again, and sending the data information to the radar, otherwise, ending the process.
Step 203: and sending the data information to the radar.
Specifically, the security tag may transmit data information to the radar after entering the radiation range of the radar. The anti-theft tag and the radar can be in data communication through a radio frequency identification technology, contactless information transmission can be achieved through the radio frequency identification technology, the anti-theft tag is easy to control, flexibility is high, and identification speed is high. It is worth mentioning that the radar can send the data information to the server after receiving the data information, and the server can judge whether the electric vehicle battery is stolen according to the data information after acquiring the data information.
It should be noted that, in practical applications, the step 202 of detecting whether the battery enters the radiation range of the radar may also be performed before the step 201. That is, if it is detected that the battery enters the radiation range of the radar, step 201 is executed to detect the data information of the battery, so that the anti-theft tag on the battery of the electric vehicle does not need to detect the data information in real time, and the purpose of saving energy is achieved while the battery of the electric vehicle is prevented from being stolen.
Compared with the prior art, the anti-theft tag is arranged on the battery, the anti-theft tag detects the data information of the battery, and the data information comprises the actual voltage between the anode and the cathode of the battery, so that the voltage value between the anode and the cathode of the battery can be timely and accurately acquired. After detecting that the battery enters the radiation range of the radar, the data information is sent to the radar, namely after the battery enters the radiation range of the radar, the radar can acquire the data information of the battery and send the data information to the server. And the server judges whether the battery is stolen or not according to the data information. Because the difference of the voltage between the positive and negative poles of the electric vehicle battery and the reference voltage is greater than the normal work time of the battery in the electric vehicle when the battery is stolen, whether the electric vehicle is stolen or not can be judged by judging whether the difference is greater than the preset threshold value through the server, and alarm information is sent out when the electric vehicle is judged to be stolen, so that whether the battery of the electric vehicle is stolen or not can be found in time, and the risk of the electric vehicle battery being stolen is effectively reduced.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
A fourth embodiment of the present invention relates to an antitheft tag provided on a battery of an electric vehicle, the antitheft tag according to the present embodiment having a schematic structural view as shown in fig. 3, and including: a sensor 301, a processor 302, and a wireless communication module 303; the sensor 301 is used for detecting data information of the battery, wherein the data information comprises actual voltage between the anode and the cathode of the battery; the processor 302 is configured to send the data information to the radar through the wireless communication module 303 after detecting that the battery enters a radiation range of the radar, so that the radar sends the data information to the server; the actual voltage is used for the server to obtain a difference value between the actual voltage and the reference voltage, judge whether the difference value is larger than a preset threshold value or not, and send alarm information after judging that the difference value is larger than the preset threshold value.
Compared with the prior art, the anti-theft tag is arranged on the battery, the sensor 301 in the anti-theft tag detects the data information of the battery, and the data information comprises the actual voltage between the anode and the cathode of the battery, so that the voltage value between the anode and the cathode of the battery can be timely and accurately acquired. After detecting that the battery enters the radiation range of the radar, the processor 302 sends the data information to the radar through the wireless communication module 303 so that the radar can send the data information to the server, and the server judges whether the battery is stolen or not according to the data information. Because the difference of the voltage between the positive and negative poles of the electric vehicle battery and the reference voltage is greater than the normal work time of the battery in the electric vehicle when the battery is stolen, whether the electric vehicle is stolen or not can be judged by judging whether the difference is greater than the preset threshold value through the server, and alarm information is sent out when the electric vehicle is judged to be stolen, so that whether the battery of the electric vehicle is stolen or not can be found in time, and the risk of the electric vehicle battery being stolen is effectively reduced.
That is, as can be understood by those skilled in the art, all or part of the steps in the method for implementing the embodiments described above may be implemented by a program instructing related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.

Claims (7)

1. An anti-theft system for a battery of an electric vehicle, comprising: the system comprises a server, at least one radar and an anti-theft tag;
the anti-theft tag is arranged on a battery of the electric vehicle and used for detecting data information of the battery, wherein the data information comprises actual voltage between the anode and the cathode of the battery;
the radar is used for acquiring the data information and sending the data information and the position information of the radar to the server after the battery enters the radiation range of the radar, wherein the data information also comprises the actual acceleration of the battery;
the server is used for receiving the data information, acquiring a difference value between the actual voltage and the reference voltage according to the data information, judging whether the difference value is larger than a preset threshold value, further judging whether the actual acceleration is larger than 0 after judging that the difference value is larger than the preset threshold value, and sending alarm information if the actual acceleration is larger than 0, wherein the alarm information carries the position information.
2. The anti-theft system for electric vehicle batteries according to claim 1, characterized in that said data information further comprises the actual acceleration of said battery;
the server is specifically configured to determine whether the actual acceleration is greater than 0 after the difference is determined to be greater than the preset threshold and before the alarm information is sent, and execute the alarm information sending after the actual acceleration is determined to be greater than 0.
3. The anti-theft system for electric vehicle batteries according to claim 1,
and the radar and the anti-theft tag carry out data communication through a radio frequency identification technology.
4. An anti-theft method for an electric vehicle battery is characterized in that the anti-theft method is applied to an anti-theft tag in an anti-theft system of the electric vehicle battery, the anti-theft tag is arranged on the electric vehicle battery, and the anti-theft method comprises the following steps:
detecting data information of the battery, wherein the data information comprises actual voltage between the anode and the cathode of the battery;
after the battery is detected to enter the radiation range of a radar, the data information is sent to the radar so that the radar can send the data information and the position information of the radar to a server, wherein the data information further comprises the actual acceleration of the battery;
the actual voltage is used for the server to obtain a difference value between the actual voltage and a reference voltage, judge whether the difference value is larger than a preset threshold value, further judge whether the actual acceleration is larger than 0 after judging that the difference value is larger than the preset threshold value, and send alarm information if the actual acceleration is larger than 0, wherein the alarm information carries the position information.
5. The anti-theft method for electric vehicle battery according to claim 4, further comprising, before said detecting data information of said battery:
detecting whether the battery enters a radiation range of the radar;
and if the battery enters the radiation range of the radar, then the data information of the battery is detected.
6. The anti-theft method for electric vehicle battery as claimed in claim 5, wherein the data information further includes an actual vibration value of the battery;
the detecting the data information of the battery specifically includes:
detecting actual voltage between the anode and the cathode of the battery by using a voltage sensor;
detecting an actual vibration value of the battery by using a vibration sensor;
and the actual vibration value is used for judging whether the actual vibration value is greater than 0 or not by the server after judging that the difference value is greater than the preset threshold value and before sending alarm information, and executing the alarm information sending after judging that the actual vibration value is greater than 0.
7. The utility model provides an anti-theft label which characterized in that sets up on electric motor car battery, includes: the system comprises a processor, a sensor and a wireless communication module;
the sensor is used for detecting data information of the battery, and the data information comprises actual voltage between the anode and the cathode of the battery;
the processor is used for sending the data information to the radar through the wireless communication module after detecting that the battery enters a radiation range of the radar, so that the radar can send the data information and the position information of the radar to a server, wherein the data information further comprises the actual acceleration of the battery;
the actual voltage is used for the server to obtain a difference value between the actual voltage and a reference voltage, judge whether the difference value is larger than a preset threshold value, further judge whether the actual acceleration is larger than 0 after judging that the difference value is larger than the preset threshold value, and send alarm information if the actual acceleration is larger than 0, wherein the alarm information carries the position information.
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