Energy storage battery theft prevention system

Abstract

The present application relates to a kind of energy storage battery theft prevention system.It includes power module, energy storage battery module, theft prevention DTU module.The first theft prevention port is provided on the power module, the second theft prevention port and the third theft prevention port are provided on the energy storage battery module, and the theft prevention loop is constructed by the first, second and third theft prevention ports.When the energy storage circuit module is stolen, the theft prevention loop is disconnected, and the disconnection condition is detected by the theft prevention DTU module and reported to the background cloud server, so that the background cloud server and user terminal can be informed in time.The mechanical action of whether the theft prevention loop is disconnected is used to determine whether the energy storage battery module is stolen, the principle is direct and simple, is not affected by communication failure between modules or other factors such as battery low-voltage hibernation, and has high reliability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage batteries, in particular to an energy storage battery anti-theft system. BACKGROUND

[0002] With the development of energy storage battery related technologies, energy storage batteries are increasingly widely used in various mobile devices and backup power supply application fields, such as electric vehicles, power supply device networks, building security, communication base stations and other scenarios. In order to achieve longer endurance, multiple energy storage battery modules must be used to form an energy storage system to supply power to the device.

[0003] The conventional technology uses the communication of each module in the energy storage system to determine whether the energy storage battery module is stolen. In the implementation process, the inventors found that the conventional technology is prone to misjudgment when the communication fails or the battery is in low-voltage hibernation, and the reliability is poor. SUMMARY

[0004] Therefore, it is necessary to provide an energy storage battery anti-theft system to solve the reliability problem.

[0005] In one embodiment, the energy storage battery anti-theft system includes a power module, an energy storage battery module, and an anti-theft DTU module.

[0006] The power module is provided with a first anti-theft port, and the first anti-theft port is provided with two short-circuit pins which are short-circuited in the port.

[0007] The energy storage battery module is provided with a second anti-theft port and a third anti-theft port, and each of the second anti-theft port and the third anti-theft port is provided with two short-circuit pins. The two short-circuit pins of the second anti-theft port and the two short-circuit pins of the third anti-theft port are short-circuited in pairs. The two short-circuit pins of the second anti-theft port are connected to the two short-circuit pins of the first anti-theft port in correspondence, and the two short-circuit pins of the third anti-theft port are connected to the two detection terminals of the anti-theft DTU module.

[0008] The anti-theft DTU module is used to detect the connection state of the energy storage battery module. When the two detection terminals are disconnected, an alarm information is sent to a background cloud server, so that the background cloud server sends an alarm information to a user terminal in time.

[0009] In one embodiment, the number of energy storage battery modules is at least two, and the positions of the short-circuit pins on the first anti-theft port, the second anti-theft port and the third anti-theft port are set in correspondence.

[0010] The energy storage battery modules are connected in series through the second anti-theft port and the third anti-theft port to form an energy storage battery module series short circuit circuit with one end being the second anti-theft interface and the other end being the third anti-theft interface; the energy storage battery module series short circuit circuit is connected with the first anti-theft port of the power module through the second anti-theft port at one end, and the two short-circuit pins of the third anti-theft port at the other end are respectively connected with the two detection ends of the anti-theft DTU module.

[0011] In one of the embodiments, the anti-theft DTU module comprises a fourth anti-theft port, an anti-theft detection circuit, a DTU processing unit and a wireless communication unit.

[0012] The fourth anti-theft port is provided with two detection pins, which are arranged in correspondence with the positions of the two short-circuit pins of the third anti-theft port; one end of the fourth anti-theft port outside the port is connected with the third anti-theft port of the energy storage battery module series short circuit circuit, and the other end inside the port is connected with the two anti-theft detection ends of the anti-theft detection circuit.

[0013] The anti-theft detection circuit is connected with the DTU processing unit, and is used for detecting the connection state of each energy storage battery module, and sending an alarm signal to the DTU processing unit when the loop of the two anti-theft detection ends is disconnected.

[0014] The DTU processing unit is connected with the wireless communication unit, and drives the wireless communication unit to send alarm information to the background cloud server when receiving the alarm signal.

[0015] In one of the embodiments, the first anti-theft port, the second anti-theft port, the third anti-theft port and the fourth anti-theft port are further provided with communication pins in correspondence; the communication pin of the fourth anti-theft port is connected with the DTU processing unit inside the port.

[0016] The energy storage battery module further comprises a battery unit, a battery BMS control unit and a communication coding unit; in each energy storage battery module, the communication pin of the second anti-theft port is respectively connected with the communication pin of the third anti-theft port and the output end of the communication coding unit, and the battery BMS control unit is respectively connected with the battery unit and the input end of the communication coding unit.

[0017] In one of the embodiments, the anti-theft detection circuit further comprises a pull-up resistor R1, one end of the resistor R1 is connected with a reference voltage, the other end is respectively connected with the alarm signal input end of the DTU processing unit and one detection pin of the fourth anti-theft port, and the other detection pin of the fourth anti-theft port is grounded.

[0018] In one of the embodiments, the anti-theft detection circuit further comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor RPTC, a triode Q1, a triode Q2, a diode D1, a bidirectional voltage stabilizing tube ESD1 and a capacitor C1.

[0019] The emitter of the triode Q1 is connected to a reference voltage and one end of a resistor R1, respectively; the base of the triode Q1 is connected to the other end of the resistor R1 and one end of a resistor R2, respectively; and the collector of the triode Q1 is connected to one end of a resistor R3.

[0020] The other end of the resistor R2 is connected to the positive electrode of a diode D1; the negative electrode of the diode D1 is connected to one end of a resistor RPTC and one end of a bidirectional voltage stabilizer ESD1, respectively; the other end of the resistor RPTC is connected to one detection pin of a fourth anti-theft port; and the other end of the bidirectional voltage stabilizer ESD1 is connected to the other detection pin of the fourth anti-theft port and grounded.

[0021] The base of the triode Q2 is connected to the other end of the resistor R3, one end of a resistor R4, and one end of a capacitor C1, respectively; the emitter of the triode Q2 is connected to the other end of the resistor R4, the other end of the capacitor C1, and grounded, respectively; and the collector of the triode Q2 is connected to one end of a resistor R5 and the alarm signal input end of a DTU processing unit, respectively; the other end of the resistor R5 is connected to a reference voltage.

[0022] In one embodiment, the first anti-theft port, the second anti-theft port, the third anti-theft port, and the fourth anti-theft port are RJ45 crystal head connector sockets.

[0023] In one embodiment, pin 4 and pin 8 in the first anti-theft port are short-circuited; pin 4 of the second anti-theft port and pin 4 of the third anti-theft port are short-circuited, pin 8 of the second anti-theft port and pin 8 of the third anti-theft port are short-circuited in any one energy storage battery module; and pin 4 and pin 8 of the fourth anti-theft port are detection pins.

[0024] In one embodiment, the communication pins of the first anti-theft port, the second anti-theft port, the third anti-theft port, and the fourth anti-theft port are pin 5 and pin 7, which are used to transmit two differential signals of the RS485 interface protocol, respectively.

[0025] In one embodiment, the above-mentioned energy storage battery anti-theft system further comprises a background cloud server and a user terminal.

[0026] The background cloud server is wirelessly connected to the anti-theft DTU module and the user terminal, respectively, for receiving alarm information and forwarding the alarm information to the corresponding user terminal.

[0027] The energy storage battery anti-theft system provided by the above embodiment has the advantages that the anti-theft interface is arranged on the power module and the energy storage battery module, and the anti-theft loop is constructed by short circuiting. When the energy storage battery module is stolen, the anti-theft loop is disconnected, the disconnection is detected by the anti-theft DTU module, and the background cloud server is reported, so that the background cloud server and the user terminal can be informed in time. Whether the energy storage battery module is stolen is determined by mechanical action of whether the anti-theft loop is disconnected. The principle is simple and direct, and is not affected by communication faults between modules or other factors such as low-voltage hibernation of the battery, and has high reliability. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A circuit structure schematic diagram of the energy storage battery anti-theft system provided by the above embodiment is provided.

[0029] Figure 2 A circuit structure schematic diagram of the energy storage battery anti-theft system provided by the above embodiment is provided.

[0030] Figure 3 A circuit structure schematic diagram of the energy storage battery anti-theft system provided by the above embodiment is provided.

[0031] Figure 4 A circuit structure schematic diagram of the energy storage battery anti-theft system provided by the above embodiment is provided.

[0032] Figure 5 A circuit structure schematic diagram of the energy storage battery anti-theft system provided by the above embodiment is provided.

[0033] Figure 6 A circuit structure schematic diagram of the anti-theft DTU module provided by the above embodiment is provided.

[0034] Figure 7 A circuit structure schematic diagram of the energy storage battery anti-theft system provided by the above embodiment is provided.

[0035] Figure 8 A circuit structure schematic diagram of the anti-theft detection circuit provided by the above embodiment is provided.

[0036] Figure 9 A circuit structure schematic diagram of the energy storage battery anti-theft system provided by the above embodiment is provided.

[0037] Figure 10 A circuit structure schematic diagram of the energy storage battery anti-theft system provided by the above embodiment is provided. DETAILED DESCRIPTION

[0038] For the purpose of promoting an understanding of the application, the application will be described in greater detail for reference to the drawings. The preferred embodiments of the application are shown in the drawings. However, the application can be realized in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It is noted that like reference characters refer to like elements throughout the present disclosure.

[0039] It is to be noted that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. As used herein, the term "mounted", "one end", "the other end" and the like are used for the purpose of illustration only and are not intended to limit the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0041] As shown in Figure 1 The energy storage battery anti-theft system provided by the embodiment of the application comprises a power supply module 100, an energy storage battery module 200 and an anti-theft DTU module 300.

[0042] The power supply module 100 is provided with a first anti-theft port 110, and the first anti-theft port 110 is provided with two short-circuit pins which are short-circuited in the port.

[0043] The energy storage battery module 200 is provided with a second anti-theft port 210 and a third anti-theft port 220, and the second anti-theft port 210 and the third anti-theft port 220 are each provided with two short-circuit pins, the two short-circuit pins of the second anti-theft port 210 and the two short-circuit pins of the third anti-theft port 220 are short-circuited in pairs, the two short-circuit pins of the second anti-theft port 210 are connected to the two short-circuit pins of the first anti-theft port 110 in correspondence, and the two short-circuit pins of the third anti-theft port 220 are respectively connected to two detection ends of the anti-theft DTU module 300.

[0044] The anti-theft DTU module 300 is used for detecting the connection state of the energy storage battery module 200, and when the two detection end loops are disconnected, an alarm information is sent to a background cloud server, so that the background cloud server sends the alarm information to a user terminal in time.

[0045] The first anti-theft port 110, the second anti-theft port 210 and the third anti-theft port 230 are electric connector sockets or plugs, which are used for connecting the lines of the modules and transmitting electric signals.

[0046] Optionally, the power module 100 can be a switching mode power supply (SMPS).

[0047] Specifically, two short-circuit pins are arranged on each of the three anti-theft ports, which are first short-circuit pins and second short-circuit pins. The two short-circuit pins of the second anti-theft port 210 and the two short-circuit pins of the third anti-theft port 220 are short-circuited in pairs, forming two parallel short-circuit lines, and two connection schemes can be realized. In the first scheme, the first short-circuit pin of the second anti-theft port 210 is connected with the first short-circuit pin of the third anti-theft port 220, and the second short-circuit pin of the second anti-theft port 210 is connected with the second short-circuit pin of the third anti-theft port 220. In the second scheme, the first short-circuit pin of the second anti-theft port 210 is connected with the second short-circuit pin of the third anti-theft port 220, and the second short-circuit pin of the second anti-theft port 210 is connected with the first short-circuit pin of the third anti-theft port 220.

[0048] The two short-circuit pins of the second anti-theft port 210 are connected with the two short-circuit pins of the first anti-theft port 110 in a one-to-one correspondence, which means that the two short-circuit pins of the second anti-theft port 210 are connected with the two short-circuit pins of the first anti-theft port 110 in two connection modes. In the first mode, the first short-circuit pin of the second anti-theft port 210 is connected with the first short-circuit pin of the first anti-theft port 110, and the second short-circuit pin of the second anti-theft port 210 is connected with the second short-circuit pin of the first anti-theft port 110. In the second mode, the first short-circuit pin of the second anti-theft port 210 is connected with the second short-circuit pin of the first anti-theft port 110, and the second short-circuit pin of the second anti-theft port 210 is connected with the first short-circuit pin of the first anti-theft port 110.

[0049] From the two detection ends of the anti-theft detection circuit 320 to the power module 100, through the connection of the three anti-theft interfaces, when the energy storage battery module 200 is normally in place, the two detection ends form a short-circuit anti-theft loop. Once the energy storage battery module 200 is taken away, the connection between the first anti-theft port 110 and the second anti-theft port 210 is disconnected, the connection between the second anti-theft port 210 and the third anti-theft port 220 is also disconnected, and the two detection ends of the anti-theft DTU module 300 are disconnected, so that the loop cannot be formed. Based on this change, the anti-theft DTU module 300 detects the connection state of the energy storage battery module 200 and reports it to the background cloud server.

[0050] In summary, the embodiment sets the anti-theft interface on the power module 100 and the energy storage battery module 200 and constructs the anti-theft loop of short circuit, when the energy storage battery module is stolen, the anti-theft loop is disconnected, the disconnection is detected by the anti-theft DTU module 300, and the background cloud server is reported, so that the background cloud server and the user terminal can be informed in time. Whether the energy storage battery module 200 is stolen is judged by the mechanical action of whether the anti-theft loop is disconnected, the principle is direct and simple, and is not affected by communication failure between modules or low-voltage hibernation of the battery and other factors, and has high reliability.

[0051] In one embodiment, as shown in Figure 2 The number of energy storage battery modules 200 is at least two; the positions of the shorting pins on the first anti-theft port 110, the second anti-theft port 210 and the third anti-theft port 220 are correspondingly set;

[0052] Each energy storage battery module 200 is connected in series through the second anti-theft port 210 and the third anti-theft port 220, forming an energy storage battery module series short circuit with one end being the second anti-theft interface and the other end being the third anti-theft interface; the energy storage battery module series short circuit is connected with the first anti-theft port 110 of the power module 100 through the second anti-theft port 210 at one end, and the two shorting pins of the third anti-theft port 220 at the other end are respectively connected with the two detection ends of the anti-theft DTU module 300.

[0053] Specifically, the positions of the shorting pins on the first anti-theft port 110, the second anti-theft port 210 and the third anti-theft port 220 are correspondingly set, that is, the two shorting pins are set at the same position, that is, the first shorting pin on the first anti-theft port 110, the second anti-theft port 210 and the third anti-theft port 220 is set at the same position, and the second shorting pin on the first anti-theft port 110, the second anti-theft port 210 and the third anti-theft port 220 is set at the same position. When the first anti-theft port 110 is connected with the second anti-theft port 210, the first shorting pin of the first anti-theft port 110 is connected with the first shorting pin of the second anti-theft port 210, and the second shorting pin of the first anti-theft port 110 is connected with the second shorting pin of the second anti-theft port 210.

[0054] As shown in Figure 3As shown, each energy storage battery module 200 is connected in series through the second anti-theft port 210 and the third anti-theft port 220 to form an energy storage battery module series short circuit circuit with one end being the second anti-theft interface and the other end being the third anti-theft interface. The second anti-theft port 210 of the first energy storage battery module 200 is connected to the first anti-theft port 110 of the battery module, and the third anti-theft port 220 is connected to the second anti-theft port 210 of the second energy storage battery module 200; the third anti-theft port 220 of the second energy storage battery module 200 is connected to the second anti-theft port 210 of the third energy storage battery module 200, and so on, until the last energy storage battery module 200. The second anti-theft port 210 of the last energy storage battery module 200 is connected to the third anti-theft port 220 of the previous energy storage battery module 200, and the two short-circuit pins of the third anti-theft port 220 of the last energy storage battery module 200 are respectively connected to the two detection terminals of the anti-theft DTU module 300.

[0055] The energy storage battery module series short circuit circuit is connected to the first anti-theft port 110 of the battery module through the second anti-theft port 210 at one end to form an anti-theft loop. When one or more energy storage battery modules 200 are stolen, the anti-theft loop will be disconnected, thereby achieving anti-theft monitoring and timely alarm for multiple energy storage battery modules 200. Anti-theft alarm can be achieved flexibly in the case of one to multiple energy storage battery modules 200.

[0056] In one embodiment, as shown, Figure 4 The anti-theft DTU module 300 includes a fourth anti-theft port 310, an anti-theft detection circuit 320, a DTU processing unit 330, and a wireless communication unit 340.

[0057] The fourth anti-theft port 310 is provided with two detection pins, which are correspondingly arranged with the positions of the two short-circuit pins of the third anti-theft port 220. The fourth anti-theft port 310 is connected to the third anti-theft port 220 of the energy storage battery module series short circuit circuit at one end outside the port, and is connected to the two anti-theft detection terminals of the anti-theft detection circuit 320 at the other end inside the port.

[0058] The anti-theft detection circuit 320 is connected to the DTU processing unit 330, and is used to detect the connection state of each energy storage battery module 200. When the two anti-theft detection terminal loops are disconnected, an alarm signal is sent to the DTU processing unit 330.

[0059] The DTU processing unit 330 is connected to the wireless communication unit 340, and when receiving the alarm signal, drives the wireless communication unit 340 to send alarm information to the background cloud server.

[0060] The fourth anti-theft port 310 is also an electrical connector socket or plug, which is used to connect the lines of each module and transmit electrical signals. In a preferred embodiment, the first to fourth anti-theft ports are selected to be the same type or model of electrical connector socket.

[0061] Specifically, the two detection pins of the fourth anti-theft port 310 are arranged in positions corresponding to the two short-circuit pins of the third anti-theft port 220, which means that the first short-circuit pin of the third anti-theft port 220 is arranged at the same position as the first detection pin of the fourth anti-theft port 310, and the second short-circuit pin of the third anti-theft port 220 is arranged at the same position as the second detection pin of the fourth anti-theft port 310. When the third anti-theft port 220 is connected to the fourth anti-theft port 310, the first short-circuit pin of the third anti-theft port 220 is connected to the first detection pin of the fourth anti-theft port 310, and the second short-circuit pin of the third anti-theft port 220 is connected to the second detection pin of the fourth anti-theft port 310.

[0062] The fourth anti-theft port 310 is connected to the third anti-theft port 220 of the last energy storage battery module 200 in the series short-circuit circuit of the energy storage battery module. From the fourth anti-theft port 310 to the power module 100, a short-circuit anti-theft loop is formed. Therefore, when the anti-theft loop is disconnected, the two detection pins of the fourth anti-theft port 310 and the two anti-theft detection ends of the anti-theft detection circuit 320 change from a short-circuit state to an open-circuit state, and the anti-theft detection circuit 320 determines whether the energy storage battery module 200 is stolen according to the state of the anti-theft detection end. When the two anti-theft detection ends are detected to be open-circuited, an alarm signal is sent to the DTU processing unit 330.

[0063] Preferably, the DTU processor can be an MCU. The wireless communication unit 340 can be a single communication mode or a hybrid communication mode, for example, a 4G communication mode wireless communication unit 340 or a 4G / 5G hybrid communication mode wireless communication unit 340.

[0064] In one embodiment, as shown in Figure 5 The first anti-theft port 110, the second anti-theft port 210, the third anti-theft port 220, and the fourth anti-theft port 310 also have communication pins arranged correspondingly. The communication pin of the fourth anti-theft port 310 is connected to the DTU processing unit 330 inside the port.

[0065] The energy storage battery module 200 also includes a battery unit, a battery BMS control unit, and a communication coding unit. In each energy storage battery module 200, the communication pin of the second anti-theft port 210 is connected to the communication pin of the third anti-theft port 220 and the output end of the communication coding unit, and the battery BMS control unit is connected to the battery unit and the input end of the communication coding unit.

[0066] The number of communication pins is one or more, which is adapted to the specific communication interface protocol. For example, when using RS485 interface protocol for communication, the number of communication pins is two. There can be multiple batteries in the battery unit, which can be in parallel or in series.

[0067] Specifically, the communication pins of each module are used to output the state information of the module, and receive the control instructions of the background cloud server. Figure 5 As shown in the embodiment, the first energy storage battery module 200, the second energy storage battery module 200 and the third energy storage battery module 200 are respectively arranged. The communication pin of the first anti-theft port 110 on the power module 100 is used to output the state information of the power module 100, and sequentially passes through the communication pin of the second anti-theft port 210 on the first energy storage module, the communication pin of the third anti-theft port 220 on the first energy storage battery module 200, the communication pin of the second anti-theft port 210 on the second energy storage battery module 200, the communication pin of the third anti-theft port 220 on the second energy storage battery module 200, the communication pin of the second anti-theft port 210 on the third energy storage battery module 200, the communication pin of the third anti-theft port 220 on the third energy storage battery module 200, the communication pin of the fourth anti-theft port 310, and reaches the DTU processing unit 330. The state information of the battery module is transmitted to the background cloud server by the wireless communication unit 340 driven by the DTU processing unit 330. The background cloud server can also issue instructions to the power module 100 through the above-mentioned path.

[0068] The battery BMS control unit of the second energy storage battery module 200 monitors the state of the battery unit and transmits the state information of the battery unit to the communication coding unit. After being encoded by the communication coding unit, the state information of the battery module is transmitted to the background cloud server by the wireless communication unit 340 driven by the DTU processing unit 330 through the communication pin of the third anti-theft port 220 on the second energy storage battery module 200 and the communication pin of the fourth anti-theft port 310. The background cloud server can also issue instructions to the battery BMS control unit through the above-mentioned path.

[0069] The communication function of the traditional energy storage battery control system is integrated in the anti-theft port in this embodiment, and the anti-theft and communication functions share the physical port and wiring, which simplifies the circuit structure and effectively reduces the implementation cost.

[0070] In one embodiment, as shown in Figure 6 , 7 The anti-theft detection circuit 320 also includes a pull-up resistor R1, one end of the resistor R1 is connected to a reference voltage, and the other end is connected to the alarm signal input end of the DTU processing unit 330 and one detection pin of the fourth anti-theft port 310, respectively. The other detection pin of the fourth anti-theft port 310 is grounded.

[0071] When the anti-theft circuit is connected, the alarm signal input end of the DTU processing unit 330 is grounded through the anti-theft circuit, and the anti-theft detection circuit 320 outputs a low-level signal; when the energy storage battery module 200 is stolen, the anti-theft circuit is disconnected, the alarm signal input end of the DTU processing unit 330 is pulled high through the pull-up resistor R1, and the anti-theft detection circuit 320 outputs a high-level signal. In this embodiment, the high-level signal is the alarm signal, and the DTU processor generates an alarm information and sends it to the background cloud server according to the high-level signal of the alarm signal input end. In this embodiment, the circuit structure is simple, and the timeliness and judgment reliability of the anti-theft alarm can be considered at low cost.

[0072] In a preferred embodiment, as shown in Figure 8 the anti-theft detection circuit 320 further comprises resistors R1, R2, R3, R4, R5, RPTC, transistors Q1, Q2, a diode D1, a bidirectional voltage regulator ESD1 and a capacitor C1;

[0073] The emitter of the transistor Q1 is connected to a reference voltage and one end of the resistor R1, the base of the transistor Q1 is connected to the other end of the resistor R1 and one end of the resistor R2, and the collector of the transistor Q1 is connected to one end of the resistor R3;

[0074] The other end of the resistor R2 is connected to the positive electrode of the diode D1, the negative electrode of the diode D1 is connected to one end of the resistor RPTC and one end of the bidirectional voltage regulator ESD1, the other end of the resistor RPTC is connected to one detection pin of the fourth anti-theft port 310, and the other end of the bidirectional voltage regulator ESD1 is connected to another detection pin of the fourth anti-theft port 310 and grounded;

[0075] The base of the transistor Q2 is connected to the other end of the resistor R3, one end of the resistor R4 and one end of the capacitor C1, the emitter of the transistor Q2 is connected to the other end of the resistor R4, the other end of the capacitor C1 and grounded, and the collector of the transistor Q2 is connected to one end of the resistor R5 and the alarm signal input end of the DTU processing unit 330; the other end of the resistor R5 is connected to a reference voltage.

[0076] Specifically, when each energy storage battery module 200 is normally connected, the transistors Q1 and Q2 are both turned off, and the alarm signal input end of the DTU processing unit 330 is at a low level. When any one or more energy storage battery modules 200 are stolen, the transistors Q1 and Q2 are both turned on, the alarm signal input end of the DTU processing unit 330 is at a high level, the DTU processing unit 330 receives the high-level signal, sends an alarm information to the background cloud server through the wireless communication unit 340, the background cloud server sends the alarm information to the user terminal, and notifies the user to handle in time.

[0077] Resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor RPTC, triode Q1, triode Q2, diode D1, bidirectional voltage regulator ESD1 and capacitor C1

[0078] In this embodiment, the bidirectional voltage regulator ESD1 plays an ESD protection role, guiding the ESD signal to GND and protecting the entire circuit. The resistor RPTC plays a current limiting role, preventing the port from misinterpreting high voltage and causing ESD to burn out due to excessive current. The diode D1 has a one-way single-pass characteristic, which can prevent high voltage from damaging the triode Q1. R1 and R2 are the bias resistors of the triode Q1, providing voltage division and current limiting for the EC conduction of the triode Q1. The triode Q1 converts the mechanical characteristics of whether the anti-theft circuit is open or short into a weak electric switch signal. The resistor R3 acts as a base current limiting resistor for Q2, playing a current limiting role. The resistor R4 is the bypass resistor of the triode Q2, which is turned on when the circuit is open, providing a return path for the discharge current of the capacitor C1 and pulling the base of the triode Q2 low. The capacitor C1 is the bypass capacitor of the triode Q2, which can prevent external interference from causing false triggering. The triode Q2 converts the electrical signal of the triode Q1 into a high-low level signal that can be recognized by the MCU (DTU processing unit 330). The resistor R5 is the pull-up resistor of the MCU-I / O port.

[0079] In one embodiment, as shown in Figure 9 , the first anti-theft port 110, the second anti-theft port 210, the third anti-theft port 220, and the fourth anti-theft port 310 are RJ45 crystal head connector sockets.

[0080] The RJ45 crystal head connector has 8 connected pins on each end, which are used for electrical connection between the encapsulated circuit module and the outside of the module.

[0081] In one embodiment, as shown in Figure 5 , 9 , the pin 4 and the pin 8 in the first anti-theft port 110 are shorted; the pin 4 of the second anti-theft port 210 and the pin 4 of the third anti-theft port 220 are shorted, and the pin 8 of the second anti-theft port 210 and the pin 8 of the third anti-theft port 220 are shorted in any one energy storage battery module 200; the pin 4 and the pin 8 of the fourth anti-theft port 310 are detection pins.

[0082] Specifically, the first anti-theft port 110 and the second anti-theft port 210 are connected by a network cable, and the wire order of the RJ45 crystal head connector at both ends is consistent, which can be 568A wire order or 568B wire order.

[0083] In one embodiment, as shown in Figure 5 , 9As shown, the communication pins of the first anti-theft port 110, the second anti-theft port 210, the third anti-theft port 220 and the fourth anti-theft port 310 are pin 5 and pin 7, which are respectively used for transmitting two differential signals of the RS485 interface protocol.

[0084] In one embodiment, as shown in the figure, the energy storage battery anti-theft system further comprises a background cloud server 400 and a user terminal 500. Figure 10

[0085] The background cloud server 400 is wirelessly connected with the anti-theft DTU module 300 and the user terminal 500 respectively, for receiving the alarm information and forwarding to the corresponding user terminal 500. The user terminal 500 is a terminal device with a display, which can be a mobile phone, a tablet computer, a mobile computer, a desktop computer, etc.

[0086] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0087] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of variations and improvements can be made, which are all within the scope of the present application. Therefore, the scope of the patent protection of the present application should be subject to the appended claims.​

Claims

1. An anti-theft system for energy storage batteries, characterized in that, include: Power supply module, energy storage battery module, anti-theft DTU module; The power module is provided with a first anti-theft port, which has two shorting pins that are shorted inside the port. The energy storage battery module is provided with a second anti-theft port and a third anti-theft port. Both the second anti-theft port and the third anti-theft port are provided with two shorting pins. The two shorting pins of the second anti-theft port and the two shorting pins of the third anti-theft port are shorted in pairs. The two shorting pins of the second anti-theft port are connected to the two shorting pins of the first anti-theft port respectively. The two shorting pins of the third anti-theft port are respectively connected to the two detection terminals of the anti-theft DTU module. The anti-theft DTU module is used to detect the connection status of the energy storage battery module. When the two detection terminal circuits are disconnected, an alarm message is sent to the background cloud server so that the background cloud server can send the alarm message to the user terminal in a timely manner. The anti-theft DTU module includes: a fourth anti-theft port, an anti-theft detection circuit, a DTU processing unit, and a wireless communication unit; The fourth anti-theft port is provided with two detection pins, which are positioned corresponding to the two shorting pins of the third anti-theft port; one end of the fourth anti-theft port is connected to the third anti-theft port of the series short-circuit circuit of the energy storage battery module, and the other end of the fourth anti-theft port is connected to the two anti-theft detection terminals of the anti-theft detection circuit. The anti-theft detection circuit is connected to the DTU processing unit and is used to detect the connection status of each of the energy storage battery modules. When the two anti-theft detection terminal circuits are disconnected, an alarm signal is sent to the DTU processing unit. The DTU processing unit is connected to the wireless communication unit. When it receives the alarm signal, it drives the wireless communication unit to send alarm information to the background cloud server. The anti-theft detection circuit also includes a pull-up resistor R1. One end of the resistor R1 is connected to a reference voltage, and the other end is connected to the alarm signal input terminal of the DTU processing unit and one of the detection pins of the fourth anti-theft port. The other detection pin of the fourth anti-theft port is grounded.

2. The energy storage battery anti-theft system according to claim 1, characterized in that, The number of energy storage battery modules is at least two; the positions of the shorting pins on the first anti-theft port, the second anti-theft port and the third anti-theft port are respectively set; Each of the energy storage battery modules is connected in series through the second anti-theft port and the third anti-theft port to form a series short-circuit circuit of the energy storage battery modules, with one end being the second anti-theft interface and the other end being the third anti-theft interface. The series short-circuit circuit of the energy storage battery modules is connected to the first anti-theft port of the power module through the second anti-theft port at one end, and the series short-circuit circuit of the energy storage battery modules is connected to the two detection terminals of the anti-theft DTU module through the two shorting pins of the third anti-theft port at the other end.

3. The energy storage battery anti-theft system according to claim 1, characterized in that, The first anti-theft port, the second anti-theft port, the third anti-theft port, and the fourth anti-theft port are also provided with corresponding communication pins. The communication pin of the fourth anti-theft port is connected to the DTU processing unit inside the port. The energy storage battery module further includes a battery unit, a battery BMS control unit, and a communication encoding unit; within each energy storage battery module, the communication pin of the second anti-theft port is connected to the communication pin of the third anti-theft port and the output terminal of the communication encoding unit, respectively, and the battery BMS control unit is connected to the battery unit and the input terminal of the communication encoding unit, respectively.

4. The energy storage battery anti-theft system according to claim 3, characterized in that, The anti-theft detection circuit also includes: resistors R1, R2, R3, R4, R5, RPTC, transistors Q1 and Q2, diode D1, bidirectional Zener diode ESD1, and capacitor C1. The emitter of transistor Q1 is connected to the reference voltage and one end of resistor R1, the base of transistor Q1 is connected to the other end of resistor R1 and one end of resistor R2, and the collector of transistor Q1 is connected to one end of resistor R3. The other end of resistor R2 is connected to the positive terminal of diode D1; the negative terminal of diode D1 is connected to one end of resistor RPTC and one end of bidirectional Zener diode ESD1; the other end of resistor RPTC is connected to one detection pin of the fourth anti-theft port; the other end of bidirectional Zener diode ESD1 is connected to another detection pin of the fourth anti-theft port and grounded. The base of transistor Q2 is connected to the other end of resistor R3, one end of resistor R4, and one end of capacitor C1. The emitter of transistor Q2 is connected to the other end of resistor R4, the other end of capacitor C1, and grounded. The collector of transistor Q2 is connected to one end of resistor R5 and the alarm signal input terminal of the DTU processing unit. The other end of resistor R5 is connected to the reference voltage.

5. The energy storage battery anti-theft system according to any one of claims 3-4, characterized in that, The first anti-theft port, the second anti-theft port, the third anti-theft port, and the fourth anti-theft port are RJ45 crystal head connector sockets.

6. The energy storage battery anti-theft system according to claim 5, characterized in that, Pins 4 and 8 of the first anti-theft port are shorted; in any of the energy storage battery modules, pin 4 of the second anti-theft port and pin 4 of the third anti-theft port are shorted, and pin 8 of the second anti-theft port and pin 8 of the third anti-theft port are shorted; pins 4 and 8 of the fourth anti-theft port are detection pins.

7. The energy storage battery anti-theft system according to claim 6, characterized in that, The communication pins of the first anti-theft port, the second anti-theft port, the third anti-theft port, and the fourth anti-theft port are pin 5 and pin 7, which are used to transmit two differential signals of the RS485 interface protocol, respectively.

8. The energy storage battery anti-theft system according to claim 7, characterized in that, Also includes: Backend cloud server and user terminal; The background cloud server is wirelessly connected to the anti-theft DTU module and the user terminal, respectively, and is used to receive alarm information and forward it to the corresponding user terminal.

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