Energy supply system of energy storage street lamp device

Abstract

The utility model provides an energy supply system of an energy storage street lamp device, which is characterized in that an AC / DC constant current module, a DC metering module and an LED light source form a first power supply circuit, an AC / DC voltage limiting constant current module, the DC metering module and the LED light source form a second power supply circuit, and a battery, a charging and discharging management module, the DC metering module and the LED light source form a third power supply circuit. The main control module is respectively connected with the AC / DC constant current module, the charging and discharging management module and the DC metering module, and the main control module is configured to evaluate whether the AC / DC constant current module, the AC / DC voltage-limiting constant current module and the battery are invalid or not by receiving a feedback signal output by the DC metering module, and control the charging and discharging of the battery by controlling the start and stop of the AC / DC constant current module and / or the AC / DC voltage-limiting constant current module and / or the charging and discharging management module. The method is used for realizing a redundant energy supply function of the first power supply line, the second power supply line and the third power supply line.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power equipment, and in particular relates to an energy supply system for an energy storage street lamp device. Background Art

[0002] Energy storage street lights are smart street lights that integrate an energy storage power supply system. They are generally equipped with energy storage devices such as batteries or supercapacitors. They can be powered by AC or battery power to power LED light sources, aiming to improve energy utilization efficiency and reduce dependence on traditional power grids.

[0003] However, under existing technology, if a single power conversion module fails, both the mains power supply and the battery charging circuit will be disconnected. When the battery runs out of energy, the streetlight will cease operation. Consequently, existing energy storage streetlight circuit components have low fault tolerance, making it prone to interruptions if circuit failures are not promptly addressed. Utility Model Content

[0004] The present invention aims to provide an energy supply system for an energy storage street lamp device to solve the technical problem in the prior art that if a single power conversion module of a conventional energy storage street lamp is damaged and not repaired in time, the lighting will be interrupted directly due to lack of power supply.

[0005] To solve the above problems, the technical solution of the present invention is: an energy supply system for an energy storage street lamp device, comprising: a main control module, an AC / DC constant current module, an AC / DC voltage-limiting constant current module, a DC metering module and an LED light source;

[0006] The AC / DC constant current module, the DC metering module and the LED light source form a first power supply circuit, wherein the input end of the AC / DC constant current module is connected to the mains, and the output end of the AC / DC constant current module is connected to the LED light source after passing through the DC metering module;

[0007] The AC / DC voltage-limiting constant current module, the DC metering module and the LED light source form a second power supply circuit, wherein the input end of the AC / DC voltage-limiting constant current module is connected to the mains, and the output end of the AC / DC voltage-limiting constant current module is connected to the LED light source after passing through the DC metering module;

[0008] The main control module is respectively connected to the AC / DC constant current module, the AC / DC voltage limiting constant current module, and the DC metering module. The main control module is configured to evaluate whether the AC / DC constant current module and the AC / DC voltage limiting constant current module have failed by receiving a feedback signal output by the DC metering module, and to realize redundant energy supply functions of the first power supply line and the second power supply line by starting and stopping the AC / DC constant current module and / or the AC / DC voltage limiting constant current module.

[0009] Preferably, the energy supply system of the energy storage street lamp device is further provided with a charge and discharge management module and a battery, wherein the battery, the charge and discharge management module, the DC metering module and the LED light source form a third power supply circuit, wherein the battery output end is connected to the LED light source after passing through the charge and discharge management module and the DC metering module in sequence;

[0010] The main control module is further configured to evaluate whether the battery has failed by receiving a feedback signal output by the DC metering module, and to control the start and stop of the battery through the charge and discharge management module to realize the energy supply function of the third power supply line.

[0011] Preferably, a DC / DC constant current module is further provided between the output end of the charge and discharge management module and the input end of the DC metering module, and the DC / DC constant current module is used to convert DC currents of different amplitudes output by the mains and the battery into a DC current suitable for the LED light source.

[0012] Preferably, switches are respectively provided in the first power supply line, the second power supply line and the third power supply line, and the main control module is respectively connected to each switch. The main control module can realize the connection or disconnection of the first power supply line, the second power supply line and the third power supply line by individually controlling the opening and closing of each switch.

[0013] Preferably, the energy supply system of the energy storage street lamp device also includes an AC / DC constant voltage module and a DC / DC constant voltage module. The input end of the AC / DC constant voltage module is connected to the mains power, and the output end of the AC / DC constant voltage module is connected to the main control module after passing through the DC / DC constant voltage module. The AC / DC constant voltage module is used to conduct the mains power to supply energy to the main control module alone.

[0014] Preferably, one input end of the DC / DC constant voltage module is connected to the output end of the AC / DC constant voltage module, and the other input end of the DC / DC constant voltage module is also connected to the output end of the charge and discharge management module. The battery can supply energy to the main control module through the charge and discharge management module.

[0015] Preferably, the energy supply system of the energy storage street lamp device also includes a communication module, the power supply end of the communication module is connected to the output end of the DC / DC constant voltage module, and the communication end of the communication module is connected to the main control module. The communication module is configured so that when the AC / DC constant current module, the AC / DC voltage-limiting constant current module or the battery fails, the main control module can send a fault signal to the external platform through the communication module.

[0016] Preferably, the energy supply system of the energy storage street lamp device also includes an auxiliary source output module, the input end of the auxiliary source output module is connected to the output end of the DC / DC constant voltage module, the output end of the auxiliary source output module is connected to the power supply end of the external component, and the auxiliary source output module is used to supply energy to the external component.

[0017] Preferably, the energy supply system of the energy storage street lamp device also includes an AC metering module, the input end of the AC metering module is connected to the AC input end of the mains power, the output end and the communication end of the AC metering module are respectively connected to the AC / DC constant current module, the AC / DC voltage limiting constant current module, the AC / DC constant voltage module and the main control module, and the AC metering module is used to detect the electric energy metering of the mains power.

[0018] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0019] (1) In the energy supply system of an energy storage street lamp device provided by the present invention, an AC / DC constant current module, an AC / DC voltage-limiting constant current module and a battery are respectively provided, wherein the AC / DC constant current module and the AC / DC voltage-limiting constant current module can be directly connected to the mains and supply energy to the LED light source through the first power supply line and the second power supply line respectively, and the AC / DC voltage-limiting constant current module can also be connected to the mains to store energy in the battery. At the same time, the battery can also supply energy to the LED light source through the third power supply line. Therefore, in the present invention, the first power supply line, the second power supply line and the third power supply line form a redundant power supply line structure. When any of the AC / DC constant current module, the AC / DC voltage-limiting constant current module or the battery is damaged, the main control module can quickly switch to another power supply line to continue to supply energy to the LED light source, thereby ensuring the continuous lighting operation of the energy storage street lamp device.

[0020] (2) In the energy supply system of an energy storage street lamp device provided by the present invention, the main control module can be powered directly by the mains electricity or by a battery. During peak hours, the main control module is powered by the electric energy stored in advance by the battery, which can effectively reduce electricity costs.

[0021] (3) In the energy supply system of an energy storage street lamp device provided by the present invention, a communication module and an auxiliary source output module are also provided. When any one or even all of the AC / DC constant current module, the AC / DC voltage limiting constant current module and the battery are damaged, the main control module can still send a fault signal to the outside, thereby improving the real-time fault response of the energy storage street lamp device and facilitating the maintenance of the energy storage street lamp device.

[0022] (4) In the energy supply system of the energy storage street lamp device provided by the present invention, an AC metering module is also provided for detecting the electric energy metering of the mains in advance. When the mains power fails, the main control module can convert the power supply mode to battery power in advance to avoid the interruption of the LED light source and ensure the lighting operation stability of the energy storage street lamp device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A first structural diagram of the energy supply system of the energy storage street lamp device provided by the utility model;

[0024] Figure 2 A second structural schematic diagram of the energy supply system of the energy storage street lamp device provided by the present invention. DETAILED DESCRIPTION

[0025] The following is a detailed description of the energy supply system of the energy storage street lamp device proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims.

[0026] See Figures 1 to 2 This embodiment provides an energy supply system for an energy storage street lamp device, which enables the energy storage street lamp device to have multiple power supply modes. Even if the electronic components of a single power supply line are damaged or fail, the energy storage street lamp device can still achieve normal lighting function.

[0027] The energy supply system of the energy storage street lamp device mainly includes a main control module, an AC / DC constant current module, an AC / DC voltage-limiting constant current module, a charge and discharge management module, a DC metering module and an LED light source.

[0028] Among them, the AC / DC constant current module, the DC metering module and the LED light source form a first power supply circuit. The input end of the AC / DC constant current module is connected to the AC input end of the mains power, the output end of the AC / DC constant current module is connected to the first input end of the DC metering module, and the output end of the DC metering module is connected to the LED light source. The AC / DC constant current module can convert the alternating current power supply (AC) into a stable direct current output (DC). Even if the input voltage or load changes, the output current can be maintained at a constant level. Therefore, in this embodiment, the AC / DC constant current module can convert the mains power into the direct current required by the LED light source. The DC metering module is an electronic component used to measure the electrical parameters of the direct current, such as voltage, current, and power. The communication end of the DC metering module is connected to the main control module. In this embodiment, the DC metering module can feedback the current parameters flowing through the first power supply circuit to the main control module. The main control module then determines whether the AC / DC constant current module is damaged or failed based on the current parameters.

[0029] The AC / DC voltage-limiting constant current module, the charge-discharge management module, the DC metering module, and the LED light source form a second power supply circuit. The AC / DC voltage-limiting constant current module input is connected to the AC mains AC input, the AC / DC voltage-limiting constant current module output is connected to the first input of the charge-discharge management module, the first output of the charge-discharge management module is connected to the second input of the DC metering module, and the DC metering module output is connected to the LED light source. The AC / DC voltage-limiting constant current module converts alternating current (AC) into a stable direct current (DC) output. Furthermore, when the load resistance decreases, causing the current to increase, it automatically reduces the output voltage to limit the current and prevent circuit overload. Therefore, in this embodiment, the AC / DC voltage-limiting constant current module converts the AC mains power into a DC current suitable for the LED light source. Furthermore, because the AC / DC voltage-limiting constant current module and the battery described later actually share the same circuit, and the current generated by the AC / DC voltage-limiting constant current module can also be provided to the battery for energy storage, a voltage limiting function is provided to prevent circuit overload. The charge-discharge management module is an electronic component used to control battery charging and discharging, as well as circuit opening and closing. In this embodiment, the main control module can control the start and stop of the AC / DC voltage-limiting constant-current module through the charge-discharge management module. This allows the redundant power supply system to determine whether to use the second power supply line as the power supply line for the LED light source. Simultaneously, the charge-discharge management module can also control the conduction between the output terminal of the AC / DC voltage-limiting constant-current module and the battery charging terminal, thereby enabling the battery to be charged using AC power. Similarly, the DC metering module can provide feedback to the main control module on the current parameters flowing through the second power supply line. Based on these current parameters, the main control module can determine whether the AC / DC voltage-limiting constant-current module is damaged or inoperative.

[0030] Preferably, in one embodiment, the energy storage streetlight device's energy supply system further includes a battery. The battery, charge-discharge management module, DC metering module, and LED light source form a third power supply circuit. The battery output is connected to the second input of the charge-discharge management module, the first output of the charge-discharge management module is connected to the second input of the DC metering module, and the output of the DC metering module is connected to the LED light source. This means that part of the third power supply circuit overlaps with the second power supply circuit. In this embodiment, the energy storage streetlight device's energy supply system can control whether to use the battery as a power source through the charge-discharge management module, thereby using the third power supply circuit as the power supply circuit for the LED light source. Similarly, the DC metering module can provide feedback to the main control module on the current parameters flowing through the third power supply circuit. The main control module then determines whether the battery is damaged, inoperative, or depleted based on the current parameters. It is worth noting that although the second and third power supply circuits share partially overlapping circuits, preferably only one of the second or third power supply circuits is conductive at any one time to reduce power loss and prevent circuit overload.

[0031] The main control module is connected to the control end of the AC / DC constant current module and the control end of the charge and discharge management module respectively, and can directly realize the start and stop control of the AC / DC constant current module and / or the AC / DC voltage-limiting constant current module and / or the battery. When the main control module controls the AC / DC constant current module to start, the main control module controls the AC / DC voltage-limiting constant current module and the battery to be disabled through the charge and discharge management module. At this time, the second power supply line and the third power supply line are both disconnected, and the first power supply line is open, that is, the redundant energy supply system uses the AC / DC constant current module to supply energy to the LED light source using the mains. When the main control module controls the AC / DC voltage-limiting constant current module to be enabled through the charge and discharge management module, the AC / DC constant current module and the battery are disabled. At this time, the second power supply line is open, and the first power supply line and the third power supply line are both disconnected, that is, the redundant energy supply system uses the AC / DC voltage-limiting constant current module to supply energy to the LED light source using the mains. When the main control module controls the battery to be enabled through the charge and discharge management module, the AC / DC constant current module and the AC / DC voltage limiting constant current module are disabled. At this time, the third power supply line is open, and the first power supply line and the second power supply line are both disconnected, that is, the redundant power supply system uses the battery to directly supply power to the LED light source.

[0032] In summary, this embodiment provides an energy supply system for an energy storage street lamp device, which is designed with three redundant power supply lines and two power supply modes. When any power conversion module is damaged or fails, the main control module can call other power supply lines or power supply modes to ensure the continuous and stable lighting operation of the energy storage street lamp device. Specifically, when the AC / DC constant current module is damaged or fails, the DC metering module feeds back the current abnormality signal of the first power supply line to the main control module, the main control module controls the AC / DC constant current module to be disabled, and controls the second power supply line or the third power supply line through the charge and discharge management module to achieve normal lighting operation of the energy storage street lamp device. When the AC / DC voltage limiting constant current module is damaged or fails, the DC metering module feeds back the current abnormality signal of the second power supply line to the main control module, the main control module controls the AC / DC voltage limiting constant current module to be disabled through the charge and discharge management module, the second power supply line is disconnected, and the AC / DC constant current module is controlled to be turned on or the battery is controlled to be powered through the charge and discharge management module to achieve normal lighting operation of the energy storage street lamp device. When the battery is damaged or the energy storage is exhausted, the DC metering module feeds back an abnormal current signal of the third power supply line to the main control module. The main control module controls the battery to be disabled through the charge and discharge management module, disconnects the third power supply line, and controls the AC / DC constant current module to be turned on, or controls the AC / DC voltage limiting constant current module to be turned on through the charge and discharge management module, and uses the mains power supply to realize normal lighting operation of the energy storage street lamp device.

[0033] At the same time, the energy supply system of the energy storage street lamp device provided in this embodiment can also be used for off-peak storage and use of electric energy to reduce electricity costs. Specifically, during the peak power period, the main control module can preferably control the third power supply line through the charge and discharge management module, and the battery supplies energy to the LED light source. When the battery is exhausted, the main control module controls the AC / DC voltage limiting constant current module to turn on, or controls the AC / DC constant current module to turn on, and the mains power supplies energy to the LED light source. During the valley power period, the main control module can preferably control the AC / DC constant current module to turn on, or controls the AC / DC voltage limiting constant current module to turn on, and the mains power supplies energy to the LED light source. At the same time, the charge and discharge management module can also be used to connect the output end of the AC / DC voltage limiting constant current module to the battery charging end, and the mains power in the valley power period can be used to charge the battery.

[0034] Preferably, in one embodiment, a DC / DC constant current module is further provided between the charge and discharge management module and the DC metering module, the first output end of the charge and discharge management module is connected to the input end of the DC / DC constant current module, and the output end of the DC / DC constant current module is connected to the second output end of the DC metering module. The DC / DC constant current module is used to convert any DC current into another DC current of a specific amplitude, and maintain the output current at a constant level in the process. In this embodiment, since the second power supply line and the third power supply line share a partially overlapping circuit, the amplitude of the AC current converted and output by the AC / DC voltage-limiting constant current module is different from the current amplitude directly output by the battery. Through the DC / DC constant current module, the DC currents of different amplitudes output by the AC power supply and the battery can be converted into the DC current required by the LED light source.

[0035] Preferably, in one embodiment, the first power supply line, the second power supply line and the third power supply line may be respectively provided with a first switch, a second switch and a third switch, and the first switch, the second switch and the third switch are directly connected to the main control module and are individually controlled by the main control module, that is, the main control module can realize the conduction or disconnection of the first power supply line, the second power supply line and the third power supply line by individually controlling the opening and closing of each switch. In this embodiment, the first switch can be set at any position of the first power supply line from the AC input end of the mains to the first input end of the DC metering module, the second switch can be set at the second power supply line from the output end of the AC / DC voltage limiting constant current module to the first input end of the charge and discharge management module, and the third switch can be set at the third power supply line from the battery output end to the second input end of the charge and discharge management module.

[0036] Preferably, in one embodiment, the energy supply system of the energy storage street lamp device further includes an AC / DC constant voltage module and a DC / DC constant voltage module. The input end of the AC / DC constant voltage module is connected to the AC input end of the mains power supply, the output end of the AC / DC constant voltage module is connected to the first input end of the DC / DC constant voltage module, and the first output end of the DC / DC constant voltage module is connected to the main control module. The AC / DC constant voltage module can convert an alternating current power supply (AC) into a stable direct current voltage output (DC). In this embodiment, the AC / DC constant voltage module can convert the mains power supply into a DC voltage suitable for the main control module. Therefore, the main control module can be powered solely by the mains power supply. Even if the AC / DC constant current module and / or the AC / DC voltage-limiting constant current module are damaged, it will not affect the normal operation of the main control module.

[0037] Furthermore, the second input terminal of the DC / DC constant voltage module is connected to the second output terminal of the charge and discharge management module. The main control module can control the connection between the battery output terminal and the second input terminal of the DC / DC constant voltage module through the charge and discharge management module, and then use the battery to supply power to the main control module. Among them, the DC / DC constant voltage module can convert the voltage of a DC power supply into another stable and unchanged DC voltage output. In this embodiment, since the voltage amplitude of the mains power output converted by the AC / DC constant voltage module is different from the voltage amplitude directly output by the battery, the DC / DC constant voltage module can be used to convert the DC voltages of different amplitudes of the mains power and the battery output into a DC voltage suitable for the LED light source. By setting up the redundant power supply circuit of the main control module, the main control module can be supplied with energy by the battery during the peak power period, further saving electricity costs. Furthermore, in this embodiment, the output end of the AC / DC voltage limiting constant current module can also be connected to the second input end of the DC / DC constant voltage module via the charge and discharge management module, and then the main control module can be powered by the AC power of another line. That is, if the AC / DC constant voltage module is damaged, in addition to supplying power to the main control module through the battery, it is also possible to choose to supply power to the main control module through the AC / DC voltage limiting constant current module via another power supply line.

[0038] Preferably, in one embodiment, the energy supply system of the energy storage street lamp device is further provided with a communication module, and the power supply end of the communication module is connected to the second output end of the DC / DC constant voltage module. During normal use of the energy supply system of the energy storage street lamp device, the communication module can be directly powered by the mains or by the battery through the AC / DC constant voltage module. At the same time, the communication end of the communication module is connected to the main control module. The communication module is configured so that when the AC / DC constant current module, the AC / DC voltage-limiting constant current module, the battery and / or the AC / DC constant voltage module fail, the main control module can send a fault signal to the external platform through the communication module to remind the staff that the internal electrical components of the energy storage street lamp device have failed, thereby ensuring the timely maintenance of the energy storage street lamp device.

[0039] Furthermore, the energy supply system of the energy storage street lamp device is also provided with an auxiliary source output module, the output end of the auxiliary source output module is connected to the power supply end of the external component, and the input end of the auxiliary source output module is connected to the third output end of the DC / DC constant voltage module. The external components include cameras, alarms and other components. In this embodiment, the external components can be powered by AC power or batteries through the auxiliary source output module.

[0040] Preferably, the energy supply system of the energy storage street lamp device is also provided with an AC metering module, which is arranged on one side of the AC input end of the mains, that is, the input end of the AC metering module is connected to the AC input end of the mains, and the output end of the AC metering module is respectively connected to the input end of the AC / DC constant current module, the input end of the AC / DC voltage-limiting constant current module and the input end of the AC / DC constant voltage module, and the communication end of the AC metering module is connected to the main control module. The AC metering module can be used to directly detect the electric energy measurement of the mains. In this embodiment, when a power outage occurs at the AC input end of the mains power, if the LED light source is powered by the mains power at this time, when the main control module detects that the current data is abnormal through the DC metering module, the LED light source may have been affected by the unstable mains current and has been extinguished. Therefore, an AC metering module is further provided in this embodiment. The alternating current input from the mains power is first detected by the AC metering module and then transmitted to the AC / DC constant current module, the AC / DC voltage limiting constant current module and the AC / DC constant voltage module. When a power outage occurs at the AC input end of the mains power, the main control module can first detect the abnormal current data through the AC metering module, and immediately switch the power supply mode to battery power supply through the charge and discharge management module to prevent the LED light source from being extinguished. When the main control module detects that the current data returns to normal through the AC metering module, it switches the power supply mode to mains power supply through the charge and discharge management module, thereby ensuring stable and continuous operation of the LED light source.

[0041] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they will still fall within the scope of protection of the present invention.

Claims

1. An energy supply system for an energy storage street lamp device, characterized in that: include: Main control module, AC / DC constant current module, AC / DC voltage limiting constant current module, DC metering module and LED light source; The AC / DC constant current module, the DC metering module and the LED light source form a first power supply circuit, wherein the input end of the AC / DC constant current module is connected to the mains, and the output end of the AC / DC constant current module is connected to the LED light source after passing through the DC metering module; The AC / DC voltage-limiting constant current module, the DC metering module and the LED light source form a second power supply circuit, wherein the input end of the AC / DC voltage-limiting constant current module is connected to the mains, and the output end of the AC / DC voltage-limiting constant current module is connected to the LED light source after passing through the DC metering module; The main control module is respectively connected to the AC / DC constant current module, the AC / DC voltage limiting constant current module, and the DC metering module. The main control module is configured to evaluate whether the AC / DC constant current module and the AC / DC voltage limiting constant current module have failed by receiving a feedback signal output by the DC metering module, and to realize redundant energy supply functions of the first power supply line and the second power supply line by starting and stopping the AC / DC constant current module and / or the AC / DC voltage limiting constant current module.

2. The energy supply system of the energy storage street lamp device according to claim 1, characterized in that: A charge and discharge management module and a battery are also provided. The battery, the charge and discharge management module, the DC metering module and the LED light source form a third power supply circuit, wherein the battery output end is connected to the LED light source after passing through the charge and discharge management module and the DC metering module in sequence; The main control module is further configured to evaluate whether the battery has failed by receiving a feedback signal output by the DC metering module, and to control the start and stop of the battery through the charge and discharge management module to realize the energy supply function of the third power supply line.

3. The energy supply system of the energy storage street lamp device according to claim 2, characterized in that: A DC / DC constant current module is further provided between the output end of the charge and discharge management module and the input end of the DC metering module. The DC / DC constant current module is used to convert DC currents of different amplitudes output by the mains and the battery into a DC current suitable for the LED light source.

4. The energy supply system of the energy storage street lamp device according to claim 2, characterized in that: The first power supply line, the second power supply line and the third power supply line are respectively provided with switches, and the main control module is respectively connected to each switch. The main control module can realize the connection or disconnection of the first power supply line, the second power supply line and the third power supply line by individually controlling the opening and closing of each switch.

5. The energy supply system of the energy storage street lamp device according to claim 2, characterized in that: It also includes an AC / DC constant voltage module and a DC / DC constant voltage module. The input end of the AC / DC constant voltage module is connected to the mains power, and the output end of the AC / DC constant voltage module is connected to the main control module after passing through the DC / DC constant voltage module. The AC / DC constant voltage module is used to conduct the mains power to supply energy to the main control module alone.

6. The energy supply system of the energy storage street lamp device according to claim 5, characterized in that: One input end of the DC / DC constant voltage module is connected to the output end of the AC / DC constant voltage module, and the other input end of the DC / DC constant voltage module is also connected to the output end of the charge and discharge management module. The battery can supply energy to the main control module through the charge and discharge management module.

7. The energy supply system of the energy storage street lamp device according to claim 6, characterized in that: It also includes a communication module, the power supply end of the communication module is connected to the output end of the DC / DC constant voltage module, and the communication end of the communication module is connected to the main control module. The communication module is configured so that when the AC / DC constant current module, the AC / DC voltage-limiting constant current module or the battery fails, the main control module can send a fault signal to the external platform through the communication module.

8. The energy supply system of the energy storage street lamp device according to claim 5, characterized in that: It also includes an auxiliary source output module, the input end of the auxiliary source output module is connected to the output end of the DC / DC constant voltage module, the output end of the auxiliary source output module is connected to the power supply end of the external component, and the auxiliary source output module is used to supply energy to the external component.

9. The energy supply system of the energy storage street lamp device according to claim 1, characterized in that: It also includes an AC metering module, the input end of the AC metering module is connected to the AC input end of the mains power, the output end and the communication end of the AC metering module are respectively connected to the AC / DC constant current module, the AC / DC voltage limiting constant current module, the AC / DC constant voltage module and the main control module, and the AC metering module is used to detect the electric energy measurement of the mains power.

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