Urban road lighting system

Abstract

The utility model discloses an urban road lighting system which comprises a plurality of lamp subsystems, namely an Internet of Things lamp subsystem, an energy storage lamp subsystem and a photovoltaic lamp subsystem. Each communication unit is in signal connection with the corresponding lamp subsystem, the service management cloud platform is in signal connection with the communication units, and the service management cloud platform is configured to issue instruction signals to the corresponding lamp subsystems through the communication units. And receiving the internal information and / or environment information of the plurality of lamp subsystems through the communication unit so as to realize unified management of various and large-scale lamp subsystems. Through the synergistic effect of the communication unit and the business management cloud platform, unified management of various types of lamps is realized, and the business management cloud platform can receive internal information and environment information of each lamp subsystem through the communication unit, and issues instruction signals to each lamp subsystem, so that the lamp subsystems are controlled to be in a unified manner. Therefore, centralized control and monitoring of large-scale lamps are realized.

Description

Technical Field

[0001] This utility model belongs to the field of road lighting, and in particular relates to an urban road lighting system. Background Technology

[0002] With the rapid development of smart city construction, urban road lighting systems are gradually moving towards intelligence, energy conservation, and the Internet of Things (IoT). Currently, urban road lighting mainly uses traditional streetlights, LED streetlights, and some new intelligent streetlights, such as single-lamp control streetlights, energy storage streetlights, and photovoltaic streetlights. Single-lamp control streetlights can control the opening and closing of the light source and dimming; energy storage streetlights use built-in energy storage devices (such as lithium batteries) to store electricity during periods of low electricity prices and discharge it during periods of high electricity prices to reduce electricity costs; photovoltaic streetlights use solar panels to convert light energy into electrical energy, achieving green energy supply. However, existing urban lighting systems have the following problems: different streetlights usually use different control platforms, making it difficult to manage the urban lighting system uniformly, increasing operation and maintenance costs and complexity. Data from different streetlights (such as grid fluctuations, grid anomalies, energy consumption, operating status, environmental monitoring data, etc.) cannot be shared, making it difficult to achieve intelligent analysis and optimized scheduling. Utility Model Content

[0003] The technical objective of this invention is to provide an urban road lighting system to solve the problem of the difficulty in uniformly coordinating various types of lamps.

[0004] To solve the above problems, the technical solution of this utility model is as follows:

[0005] An urban road lighting system, comprising:

[0006] The business management cloud platform and several lighting subsystems include at least one of IoT lighting subsystem, energy storage lighting subsystem and photovoltaic lighting subsystem. Each lighting subsystem includes a lighting fixture and a communication unit that communicates bidirectionally with the business management cloud platform. Each communication unit is connected to the corresponding lighting fixture signal, and all communication units are of the same type.

[0007] The business management cloud platform communicates with the communication unit via signals. The cloud platform is configured to send command signals to the corresponding lighting fixtures through the communication unit, and to receive internal and / or environmental information from the lighting fixtures through the communication unit, thereby achieving unified management of various types and large-scale lighting fixture subsystems.

[0008] The IoT lighting subsystem is an on-grid lighting subsystem powered solely by mains electricity. It includes an IoT driver for controlling the IoT lighting fixtures. The IoT driver is signal-connected to a corresponding communication unit and is configured to receive command signals from the communication unit to control the IoT lighting fixtures.

[0009] The energy storage luminaire subsystem is a semi-grid-connected luminaire subsystem powered by mains electricity or batteries. It includes an energy storage driver for controlling the energy storage luminaire. The energy storage driver is signal-connected to a corresponding communication unit and is configured to receive command signals from the communication unit to perform control on the energy storage luminaire.

[0010] The photovoltaic lighting subsystem is an off-grid lighting subsystem powered solely by batteries. It includes an IoT DC power supply for controlling the photovoltaic lighting fixtures. The IoT DC power supply is signal-connected to a corresponding communication unit and is configured to receive command signals from the communication unit to control the photovoltaic lighting fixtures.

[0011] Among them, the IoT lighting subsystem, the energy storage lighting subsystem, and the photovoltaic lighting subsystem are all equipped with several metering modules. These metering modules are configured to upload the detected internal information and / or environmental information to the business management cloud platform via the corresponding communication unit. The business management cloud platform is also configured to generate corresponding control commands based on the received internal information and / or environmental information and transmit them to the IoT driver, the energy storage driver, or the IoT DC power supply.

[0012] in,

[0013] The communication unit is configured to transmit data with the IoT driver, energy storage driver, or IoT DC power supply via serial communication, and transmit the data to the business management cloud platform without processing or after packaging it into a JSON structure.

[0014] It is also configured to receive instruction signals sent by the business management cloud platform, and transmit the instruction signals to the IoT driver, energy storage driver or IoT DC power supply without processing or after unpacking.

[0015] The communication unit includes a communication interface, a first DC / DC module, a 4G Cat.1 communication module, and a SIM card user identification module.

[0016] The communication interface connects to IoT drivers, energy storage controllers, or IoT DC power supplies to interconnect with the corresponding lighting subsystems;

[0017] The 4G Cat.1 communication module is equipped with an antenna to interconnect with the business management cloud platform;

[0018] The first DC / DC module is configured to adjust the supply voltage received from the communication interface to power the 4G Cat.1 communication module;

[0019] The SIM card user identification module is configured to provide identity verification for the communication unit.

[0020] The communication unit and the business management cloud platform communicate bidirectionally via a communication base station, and cellular mobile communication technology is used between the communication unit and the communication base station. The communication base station is connected to the Internet, and the business management cloud platform is mounted on the Internet to achieve data interaction with the communication base station.

[0021] Specifically, the IoT driver includes a first AC / DC module, a second DC / DC module, a third DC / DC module, and a first control module;

[0022] The first AC / DC module is electrically connected to the IoT lighting fixture via the second DC / DC module and is configured to receive external AC power, convert it into DC power, and supply power to the IoT lighting fixture.

[0023] The first AC / DC module is electrically connected to the first control module and the communication unit via the third DC / DC module and is configured to supply power to the first control module and the communication unit.

[0024] The first control module is electrically connected to the first AC / DC module and is configured to adjust the opening and closing of the first AC / DC module to control the IoT lighting fixtures.

[0025] The metering module in the IoT driver includes a first input metering module and an output metering module.

[0026] The first input metering module is electrically connected to the input terminal of the first AC / DC module and is configured to detect the voltage and current information of the mains power.

[0027] The output metering module is electrically connected to the second DC / DC module and the IoT lighting fixture, respectively, and is configured to detect the power supply voltage and current information of the IoT lighting fixture.

[0028] More preferably, the IoT driver also includes a first auxiliary source metering module and a first auxiliary source output module;

[0029] The first auxiliary source metering module is electrically connected to the third DC / DC module and is configured to detect the current and voltage information of the first auxiliary source output module.

[0030] The first auxiliary source output module is electrically connected to the first auxiliary source metering module and is configured to output as an auxiliary power supply. The first auxiliary source output module is also connected to the communication unit for signal connection.

[0031] Specifically, the energy storage driver includes a second AC / DC module, a first DC / DC bidirectional module, a fourth DC / DC module, a fifth DC / DC module, and a second control module;

[0032] The second AC / DC module is connected to the battery via the first DC / DC bidirectional module. The second AC / DC module works in conjunction with the DC / DC bidirectional module to receive external AC power, convert it into DC power, and charge the battery.

[0033] The second AC / DC module is electrically connected to the energy storage lamp via the fourth DC / DC module and is configured to supply power to the energy storage lamp.

[0034] The second AC / DC module is also electrically connected to the communication unit via the fifth DC / DC module and is configured to supply power to the communication unit.

[0035] The second control module is electrically connected to both the second AC / DC module and the first DC / DC bidirectional module, and is configured to control the operating states of the second AC / DC module and the first DC / DC bidirectional module according to preset requirements; when the second AC / DC module is turned on, the first DC / DC bidirectional module controls the battery to perform charging, and the second AC / DC module supplies power to the energy storage lamp and the second control module electrically connected to it; when the second AC / DC module is turned off, the first DC / DC bidirectional module controls the battery to perform discharging, and the battery supplies power to the energy storage lamp and the second control module electrically connected to the first DC / DC bidirectional module.

[0036] The metering module in the energy storage driver includes a second input metering module, a first bus metering module, a first battery metering module, and a first lighting metering module.

[0037] The second input metering module is electrically connected to the input terminal of the second AC / DC unit and is configured to detect the voltage and current information of the mains power passing through the second input metering module;

[0038] The first bus metering module is electrically connected to the output terminal of the second AC / DC unit and is configured to detect the voltage and current information of DC power passing through the first bus metering module.

[0039] The first battery metering module is electrically connected to the first DC / DC bidirectional module and the battery, and is configured to detect the voltage and current information of the battery during charging and discharging.

[0040] The first lamp metering module is electrically connected to the fourth DC / DC module and the energy storage lamp, and is configured to detect the power supply voltage and current information of the energy storage lamp.

[0041] More preferably, the energy storage driver also includes a second auxiliary source metering module and a second auxiliary source output module;

[0042] The second auxiliary source metering module is electrically connected to the fifth DC / DC module and is configured to detect the current and voltage information of the second auxiliary source output module.

[0043] The second auxiliary source output module is electrically connected to the second auxiliary source metering module and is configured to output as an auxiliary power source. The second auxiliary source output module is also connected to the communication unit for signal connection.

[0044] The IoT DC power supply includes a line switch module, a second DC / DC bidirectional module, a sixth DC / DC module, a seventh DC / DC module, and a third control module.

[0045] The circuit switch module is connected to the battery via the second DC / DC bidirectional module. The circuit switch module and the second DC / DC bidirectional module are configured to receive DC power from the photovoltaic panel and charge the battery.

[0046] The circuit switch module is electrically connected to the photovoltaic lamps via the sixth DC / DC module and is configured to supply power to the photovoltaic lamps;

[0047] The line switch module is also electrically connected to the third control module and the communication unit via the seventh DC / DC module, and is configured to supply power to the third control module and the communication unit.

[0048] The third control module is electrically connected to the line switch module and the second DC / DC bidirectional module, respectively, and is configured to control the working state of the line switch module and the second DC / DC bidirectional module according to preset requirements; when the line switch module is turned on, the second DC / DC bidirectional module controls the battery to perform charging, and the line switch module supplies power to the photovoltaic lamps and the third control module electrically connected to it; when the line switch module is turned off, the second DC / DC bidirectional module controls the battery to perform discharging, and the battery supplies power to the photovoltaic lamps and the third control module electrically connected to the second DC / DC bidirectional module.

[0049] Specifically, the metering module in the IoT DC power supply includes a second bus metering module, a second battery metering module, and a second lighting metering module;

[0050] The second bus metering module is electrically connected to the output of the line switch module and is configured to detect the voltage and current information of the DC power output from the photovoltaic panel through the second bus metering module.

[0051] The second battery metering module is electrically connected to the second DC / DC bidirectional module and the battery, and is configured to detect the voltage and current information of the battery during charging and discharging.

[0052] The second lighting metering module is electrically connected to the sixth DC / DC module and the photovoltaic lighting fixture, and is configured to detect the power supply voltage and current information of the photovoltaic lighting fixture.

[0053] More preferably, the IoT DC power supply also includes an eighth DC / DC module, a third auxiliary source metering module, and a third auxiliary source output module;

[0054] The eighth DC / DC module is electrically connected to the output terminal of the line switch module;

[0055] The third auxiliary source metering module is electrically connected to the eighth DC / DC module and is configured to detect the current and voltage information of the constant voltage current passing through it.

[0056] The third auxiliary source output module is electrically connected to the third auxiliary source metering module and is configured to output as an auxiliary power source. The third auxiliary source output module is also connected to the communication unit for signal connection.

[0057] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art:

[0058] This utility model achieves unified management of various types of lighting fixtures, such as IoT lighting fixtures, energy storage lighting fixtures, and photovoltaic lighting fixtures, through the synergistic effect of the communication unit and the business management cloud platform. The business management cloud platform can receive internal and environmental information of each lighting fixture subsystem through the communication unit and send instruction signals to each lighting fixture subsystem, thereby realizing centralized control and monitoring of a large number of lighting fixtures.

[0059] Based on the received internal and environmental information, the business management cloud platform can generate corresponding control commands to precisely adjust the working status of each lamp and select power consumption, thereby improving the overall efficiency and energy-saving effect of the lighting system.

[0060] Each lighting subsystem is equipped with an auxiliary source metering module and an auxiliary source output module, which can be compatible with other external devices to obtain more comprehensive environmental information and provide corresponding information for the overall control of the business management cloud platform.

[0061] The protocol between the control unit and the communication unit uses hexadecimal message format, which can save network traffic and reduce the number of bytes to achieve compatibility with narrow bandwidth communication methods such as LoRa, making it more suitable for different business scenarios.

[0062] The communication unit and the communication base station use cellular mobile communication technology, such as 4G Cat.1. The communication base station is connected to the Internet, and the service management cloud platform is mounted on the Internet to realize data interaction with the communication base station. Compared with Wi-Fi, LoRa, etc., cellular mobile communication technology has wide coverage, is suitable for large-scale lighting deployment, is not limited by distance, and can ensure rapid response to lighting control commands. Attached Figure Description

[0063] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

[0064] Figure 1 This is a structural schematic diagram of an urban road lighting system according to the present invention;

[0065] Figure 2 This is a schematic diagram of the IoT lighting subsystem of this utility model;

[0066] Figure 3 This is a schematic diagram of the energy storage lighting subsystem of this utility model;

[0067] Figure 4 This is a schematic diagram of the structure of the photovoltaic lighting subsystem of this utility model;

[0068] Figure 5 This is a schematic diagram of the communication unit of this utility model. Detailed Implementation

[0069] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0070] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0071] The present invention provides a detailed description of an urban road lighting system in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims.

[0072] Example

[0073] See Figures 1 to 5 This embodiment provides an urban road lighting system, in order to Figure 1For example, this embodiment includes several lighting subsystems, a communication base station, and a service management cloud platform. A complete lighting system can have multiple lighting subsystems; each lamp and its corresponding driver constitute a lighting subsystem. Depending on the specific type of lamp, the lighting subsystems can be divided into IoT lighting subsystems, energy storage lighting subsystems, and photovoltaic lighting subsystems. Each lighting subsystem is equipped with a corresponding communication unit. Through this communication unit, the lighting subsystem can achieve bidirectional communication with the service management cloud platform via the communication base station. In other words, the communication unit connects the three different types of lighting subsystems to the same service management cloud platform for issuing commands and collecting information, achieving unified management of multiple lighting fixtures within the same city, thereby reducing operation and maintenance costs and complexity.

[0074] Information collection involves uniformly collecting various data from each lighting subsystem, including internal information and / or environmental information (such as power grid fluctuations, power grid anomalies, energy consumption, operating status, and environmental monitoring data), onto the aforementioned business management cloud platform. This enables intelligent analysis and optimized scheduling of urban lighting. Command issuance occurs when the business management cloud platform receives the data, processes it using algorithms, and then issues commands. These commands are transmitted to each lighting subsystem via communication units to execute corresponding controls, achieving unified management of various types and large-scale lighting subsystems.

[0075] See Figure 2 In this embodiment, the IoT lighting subsystem (an on-grid lighting subsystem powered only by mains electricity) includes an IoT driver for controlling the IoT lighting. The IoT driver is signal-connected to a corresponding communication unit and can receive command signals from the communication unit to control the IoT lighting.

[0076] See Figure 3 In this embodiment, the energy storage lighting subsystem (a semi-grid-connected lighting subsystem powered by mains power or batteries) includes an energy storage driver for controlling the energy storage lighting fixture. The energy storage driver is signal-connected to a corresponding communication unit and can receive command signals from the communication unit to control the energy storage lighting fixture.

[0077] See Figure 4 In this embodiment, the photovoltaic lighting subsystem (an off-grid type sub-lighting system powered solely by batteries) includes an IoT DC power supply for controlling the photovoltaic lighting fixture. The IoT DC power supply is signal-connected to a corresponding communication unit and can receive command signals from the communication unit to control the photovoltaic lighting fixture.

[0078] The communication unit can be directly connected to the lamp. When the communication unit is set on the IoT lamp, the communication unit is connected to the IoT driver. The communication unit is powered by the IoT driver, and the communication unit receives the circuit information detected by each metering module on the IoT driver and uploads it to the business management cloud platform. The platform issues instructions after algorithm processing and transmits them to the IoT driver through the communication unit.

[0079] When the communication unit is installed on the energy storage lamp, the communication unit is connected to the energy storage drive controller. The communication unit is powered by the energy storage drive controller, and the communication unit receives the circuit information detected by each metering module on the energy storage drive controller and uploads it to the business management cloud platform. The platform issues instructions after algorithm processing and transmits them to the energy storage drive controller through the communication unit.

[0080] When the communication unit is installed on the photovoltaic lamp, the communication unit is connected to the IoT DC power supply. The communication unit is powered by the IoT DC power supply, and the communication unit receives the circuit information detected by each metering module on the IoT DC power supply and uploads it to the business management cloud platform. The platform issues instructions after algorithm processing and transmits them to the IoT DC power supply through the communication unit.

[0081] The communication unit communicates with control units such as IoT drivers, energy storage controllers, and IoT DC power supplies using TTL or serial communication, supporting bidirectional transmission and simultaneous sending and receiving.

[0082] See Figure 5 Specifically, the communication unit includes a communication interface, a first DC / DC module, a 4G Cat.1 communication module, and a SIM card user identification module, all of which are integrated and connected via a circuit board. The communication interface connects to control units such as IoT drivers, energy storage controllers, or IoT DC power supplies to interconnect with the corresponding lighting subsystem. The 4G Cat.1 communication module is connected to an antenna to interconnect with the service management cloud platform. The first DC / DC module adjusts the power supply voltage received by the communication interface to power the 4G Cat.1 communication module.

[0083] The SIM card user identification module is used to provide identity recognition for communication units.

[0084] Furthermore, in this embodiment, the communication unit is only used for data transmission. Control units such as IoT drivers, energy storage controllers, and IoT DC power supplies transmit data to the communication unit via serial communication or other means. The communication unit transmits the data to the business management cloud platform without modification or after simple packaging (such as carrying communication unit signal values ​​and packaging the transmission data into a JSON structure). Similarly, the business management cloud platform sends protocol instructions to the communication unit, which transmits the data to the control unit without modification or after simple unpacking. The protocol data part is processed by the business management cloud platform and the control units such as IoT drivers, energy storage controllers, and IoT DC power supplies. Therefore, the three lighting subsystems can be equipped with the same communication unit.

[0085] Furthermore, to facilitate data transmission, the protocol between the control units such as IoT drivers, energy storage controllers, and IoT DC power supplies and the communication units adopts a hexadecimal message format. This can save network traffic and reduce the number of bytes required to achieve compatibility with narrow bandwidth communication methods such as LoRa, making it more suitable for different business scenarios.

[0086] Furthermore, in this embodiment, the communication unit and the communication base station employ cellular mobile communication technology, such as 4GCat.1. The communication base station is connected to the Internet, and the service management cloud platform is mounted on the Internet to achieve data interaction with the communication base station. Compared to Wi-Fi, LoRa, etc., cellular mobile communication technology has wide coverage, is suitable for large-scale lighting deployment, is not limited by distance, and can ensure rapid response to lighting control commands.

[0087] See Figure 2In this embodiment, the IoT driver includes a first AC / DC module, a second DC / DC module, a third DC / DC module, a first control module, and a metering module. The first AC / DC module is directly connected to the external mains power supply, receiving the mains power and converting it into DC power. A surge protection module is also installed between the first AC / DC module and the mains power supply to protect the IoT driver from lightning strikes. After exiting the first AC / DC module, the DC power passes through the second DC / DC module and is electrically connected to the IoT lighting fixture (LED in the figure). The second DC / DC module primarily regulates the DC voltage to power the IoT lighting fixture. The other DC power path passes through the third DC / DC module and is electrically connected to the first control module and the communication unit. The third DC / DC module also regulates the DC voltage to power the first control module and the communication unit. Preferably, a voltage conversion module is also provided between the third DC / DC module and the first control module. Compared to a scheme where the control module and communication unit are connected to a bus extending from the first AC / DC module via different DC / DC modules, this embodiment has a lower cost. The first control module is connected to the above-mentioned modules and communication unit. The communication unit receives the working information of each module and the detection information of the metering module through the first control module and uploads them to the business management cloud platform. The platform issues instructions after algorithm processing and transmits them to the first control module through the communication unit, and then the first control module executes the corresponding instructions.

[0088] See Figure 2 Specifically, the metering module in the IoT driver includes a first input metering module and an output metering module. The first input metering module is located on the line between the surge protection module and the first AC / DC module, and is used to detect the voltage and current flowing through it. Its function is to detect whether the AC power consumption is close to zero when the first AC / DC module shuts off the mains power, thus determining if there is a risk of leakage. The output metering module is located on the line between the second DC / DC module and the IoT lighting fixture, and is used to detect whether the IoT lighting fixture is working properly. By comparing the voltage and current information collected by the input and output metering modules, abnormal modes occurring within the IoT driver can be detected.

[0089] See Figure 2 Preferably, the IoT driver can also be connected to an auxiliary source, such as a camera. The environmental information captured by the auxiliary source can also be transmitted to the business management cloud platform through the communication unit. In this embodiment, a first auxiliary source metering module and a first auxiliary source output module are provided. The first auxiliary source metering module is electrically connected to a third DC / DC module and is used to detect the current and voltage information of the constant voltage current passing through it. The first auxiliary source output module is electrically connected to the first auxiliary source metering module and is used as an auxiliary power supply for output, i.e., connected to the auxiliary source.

[0090] See Figure 3 In this embodiment, the energy storage driver includes a second AC / DC module, a first DC / DC bidirectional module, a fourth DC / DC module, a fifth DC / DC module, a second control module, and a metering module. The second AC / DC module is connected to the mains power supply and receives external mains power, converting it into DC power. A surge protection module is also installed between the second AC / DC module and the mains power supply to protect the energy storage driver from lightning strikes. The DC power exiting the second AC / DC module is divided into four paths. The first path passes through the first DC / DC bidirectional module and enters the battery. The second AC / DC module, in conjunction with the DC / DC bidirectional module, receives external mains power, converts it into DC power, and charges the battery. The second path of DC power is electrically connected to the energy storage lamp via the fourth DC / DC module, where the DC power is stepped down before supplying power to the energy storage lamp. The third path of DC power passes through the fifth DC / DC module and enters the communication unit to power the communication unit. The fourth path of DC power is voltage-adjusted by a voltage conversion module and enters the second control module, thereby powering the second control module.

[0091] The second control module is connected to the above-mentioned modules and the communication unit, and can control the working status of the second AC / DC module and the first DC / DC bidirectional module according to preset requirements.

[0092] Specifically, when the energy storage lamp is charging and lit, the first AC / DC module converts the mains power into DC power and then distributes it into four paths: one to power the LED light source, one to power the communication unit, one to power the control module, and the last path charges the battery after being stepped down and current-limited by the first DC / DC bidirectional module. When the energy storage lamp is powered by the battery, the control module cuts off the output of the first AC / DC module and controls the first DC / DC bidirectional module to reverse boost the output to the bus (the output line of the second AC / DC module) to power the energy storage lamp. Since the voltage conversion module is connected to the battery via the first DC / DC bidirectional module, the battery can also power the second control module. Therefore, due to the presence of the second AC / DC module and the first DC / DC bidirectional module in this embodiment, switching between mains power and battery power can be achieved using only one bus.

[0093] See Figure 3Preferably, in this embodiment, the metering module in the energy storage driver includes a second input metering module, a first bus metering module, a first battery metering module, and a first lighting metering module. The second input metering module is located on the line between the surge protection module and the second AC / DC unit, and is used to detect the voltage and current information of the mains power passing through the second input metering module. The first bus metering module is located at the output terminal of the second AC / DC unit, and is used to detect the bus voltage to ensure that the bus voltage is stable at a specified voltage. The first battery metering module is located between the first DC / DC bidirectional module and the battery, and is used to detect the voltage and current information during battery charging and discharging. The first lighting metering module is located on the line between the fourth DC / DC module and the energy storage lighting fixture, and is used to detect the voltage and current information of the energy storage lighting fixture during operation.

[0094] See Figure 3 Preferably, the energy storage driver also includes a second auxiliary source metering module and a second auxiliary source output module for connecting to an auxiliary source. The second auxiliary source metering module is electrically connected to the fifth DC / DC module and is used to detect the current and voltage information of the constant voltage current passing through it. The second auxiliary source output module is electrically connected to the auxiliary source metering module and is used to output as an auxiliary power supply.

[0095] See Figure 4 In this embodiment, the IoT DC power supply includes a line switch module, a second DC / DC bidirectional module, a sixth DC / DC module, a seventh DC / DC module, a third control module, and a metering module. The line switch module is connected to the photovoltaic panel and is used to receive DC power from the photovoltaic panel. The DC power is divided into three paths after passing through the line switch module. The first path of DC power enters the battery through the second DC / DC bidirectional module, that is, the line switch module and the second DC / DC bidirectional module cooperate to receive DC power from the photovoltaic panel and charge the battery. The second path of DC power enters the photovoltaic lamp through the sixth DC / DC module, thereby powering the photovoltaic lamp (powered by the photovoltaic panel). The third path of DC power is input to the third control module and the communication unit after passing through the seventh DC / DC module, thereby powering the third control module and the communication unit. Preferably, a voltage conversion module is also provided between the seventh DC / DC module and the third control module. The third control module is connected to each of the above modules and the communication unit. The third control module controls the line switch module and the second DC / DC bidirectional module, and can adjust the working state of the line switch module and the second DC / DC bidirectional module according to preset requirements: when the line switch module is turned on, the second DC / DC bidirectional module controls the battery to charge, and the line switch module supplies power to the photovoltaic lamps and the third control module that are electrically connected to it; when the line switch module is turned off, the second DC / DC bidirectional module controls the battery to discharge, and the battery supplies power to the photovoltaic lamps and the third control module that are electrically connected to the second DC / DC bidirectional module.

[0096] Further, see Figure 4 The metering module in the IoT DC power supply includes a second bus metering module, a second battery metering module, and a second lighting metering module. The second bus metering module is located at the output of the line switch module and is used to detect the voltage and current information of the DC power output from the photovoltaic panel. The second battery metering module is located on the line between the second DC / DC bidirectional module and the battery and is used to detect the voltage and current information during battery charging and discharging. The second lighting metering module is located on the line between the sixth DC / DC module and the photovoltaic lighting fixture and is used to detect the voltage and current information of the photovoltaic lighting fixture during operation.

[0097] For a better option, see Figure 4 The IoT DC power supply also includes an eighth DC / DC module, a third auxiliary source metering module, and a third auxiliary source output module. After passing through the line switch module, the DC power is split into a fourth path, which sequentially passes through the eighth DC / DC module, the third auxiliary source metering module, and the third auxiliary source output module. The third auxiliary source metering module can detect the current and voltage information of the passing DC power. The third auxiliary source output module acts as an auxiliary power source, connecting to auxiliary sources such as cameras. Of course, the environmental information captured by the auxiliary source can also be transmitted to the business management cloud platform via the communication unit.

[0098] The embodiments of the present invention have been 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 shall still fall within the protection scope of the present invention.

Claims

1. A city road lighting system, characterized in that, include: The system includes a business management cloud platform and several lighting subsystems. The lighting subsystems include at least one of IoT lighting subsystems, energy storage lighting subsystems, and photovoltaic lighting subsystems. Each lighting subsystem includes a lighting fixture and a communication unit that communicates bidirectionally with the business management cloud platform. Each communication unit is connected to a corresponding lighting fixture signal, and all communication units are of the same type. The business management cloud platform communicates with the communication unit via signal. The business management cloud platform is configured to send instruction signals to the corresponding lamps through the communication unit, and to receive internal information and / or environmental information of the lamps through the communication unit, so as to achieve unified management of various types and large-scale lamp subsystems. in, The IoT lighting subsystem is an on-grid lighting subsystem powered only by mains electricity. It includes an IoT driver for controlling the IoT lighting, which is signal-connected to a corresponding communication unit and configured to receive command signals from the communication unit to control the IoT lighting. The energy storage luminaire subsystem is a semi-grid-connected luminaire subsystem powered by mains or batteries. It includes an energy storage driver for controlling the energy storage luminaire, the driver being signal-connected to a corresponding communication unit and configured to receive command signals from the communication unit to control the energy storage luminaire. The photovoltaic lighting subsystem is an off-grid lighting subsystem powered solely by batteries. It includes an IoT DC power supply for controlling the photovoltaic lighting fixtures. The IoT DC power supply is signal-connected to a corresponding communication unit and is configured to receive command signals from the communication unit to control the photovoltaic lighting fixtures.

2. The urban road lighting system according to claim 1, characterized in that, Each of the IoT lighting subsystem, the energy storage lighting subsystem, and the photovoltaic lighting subsystem is equipped with several metering modules. These metering modules are configured to upload detected internal information and / or environmental information to the business management cloud platform via corresponding communication units. The business management cloud platform is also configured to generate corresponding control commands based on the received internal information and / or environmental information, and transmit them to the IoT driver, the energy storage driver, or the IoT DC power supply.

3. The urban road lighting system according to claim 1, characterized in that, The communication unit is configured to transmit data with the IoT driver, the energy storage driver, or the IoT DC power supply via serial communication, and transmit the data to the business management cloud platform without processing or after packaging it into a JSON structure. It is also configured to receive instruction signals sent by the business management cloud platform, and transmit the instruction signals to the IoT driver, the energy storage driver, or the IoT DC power supply without processing or after unpacking.

4. The urban road lighting system according to claim 3, characterized in that, The communication unit includes a communication interface, a first DC / DC module, a 4G Cat.1 communication module, and a SIM card user identification module; The communication interface is connected to the IoT driver, the energy storage controller, or the IoT DC power supply to interconnect with the corresponding lighting subsystem. The 4G Cat.1 communication module is connected to an antenna to interconnect with the service management cloud platform; The first DC / DC module is configured to adjust the supply voltage received from the communication interface to power the 4GCat.1 communication module; The SIM card user identification module is configured to provide identity recognition for the communication unit.

5. The urban road lighting system according to claim 3, characterized in that, The communication unit and the service management cloud platform communicate bidirectionally via a communication base station, and the communication unit and the communication base station use cellular mobile communication technology; the communication base station is connected to the Internet, and the service management cloud platform is mounted on the Internet to realize data interaction with the communication base station.

6. The urban road lighting system according to claim 2, characterized in that, The IoT driver includes a first AC / DC module, a second DC / DC module, a third DC / DC module, and a first control module; The first AC / DC module is electrically connected to the IoT lighting fixture via the second DC / DC module and is configured to receive external AC power, convert it into DC power, and supply power to the IoT lighting fixture. The first AC / DC module is electrically connected to the first control module and the communication unit via the third DC / DC module, and is configured to supply power to the first control module and the communication unit. The first control module is electrically connected to the first AC / DC module and is configured to adjust the opening and closing of the first AC / DC module to control the IoT lighting fixture.

7. The urban road lighting system according to claim 6, characterized in that, The metering module in the IoT driver includes a first input metering module and an output metering module. The first input metering module is electrically connected to the input terminal of the first AC / DC module and is configured to detect the voltage and current information of the mains power. The output metering module is electrically connected to the second DC / DC module and the IoT lighting fixture, respectively, and is configured to detect the power supply voltage and current information of the IoT lighting fixture.

8. The urban road lighting system according to claim 6, characterized in that, The IoT driver also includes a first auxiliary source metering module and a first auxiliary source output module; The first auxiliary source metering module is electrically connected to the third DC / DC module and is configured to detect the current and voltage information of the first auxiliary source output module; The first auxiliary source output module is electrically connected to the first auxiliary source metering module and is configured to output as an auxiliary power source. The first auxiliary source output module is also signal connected to the communication unit.

9. The urban road lighting system according to claim 2, characterized in that, The energy storage driver includes a second AC / DC module, a first DC / DC bidirectional module, a fourth DC / DC module, a fifth DC / DC module, and a second control module; The second AC / DC module is connected to the battery via the first DC / DC bidirectional module. The second AC / DC module cooperates with the DC / DC bidirectional module and is configured to receive external AC power, convert it into DC power, and charge the battery. The second AC / DC module is electrically connected to the energy storage lamp via the fourth DC / DC module and is configured to supply power to the energy storage lamp; The second AC / DC module is also electrically connected to the communication unit via the fifth DC / DC module and is configured to supply power to the communication unit; The second control module is electrically connected to the second AC / DC module and the first DC / DC bidirectional module respectively, and is configured to control the working state of the second AC / DC module and the first DC / DC bidirectional module according to preset requirements; When the second AC / DC module is turned on, the first DC / DC bidirectional module controls the battery to perform charging, and / or the second AC / DC module supplies power to the energy storage lamp and the second control module electrically connected to it; when the second AC / DC module is turned off, the first DC / DC bidirectional module controls the battery to perform discharging, and the battery supplies power to the energy storage lamp and the second control module electrically connected to the first DC / DC bidirectional module.

10. The urban road lighting system according to claim 9, characterized in that, The metering module in the energy storage driver includes a second input metering module, a first bus metering module, a first battery metering module, and a first lighting metering module; The second input metering module is electrically connected to the input terminal of the second AC / DC unit and is configured to detect the voltage and current information of the mains power passing through the second input metering module; The first bus metering module is electrically connected to the output terminal of the second AC / DC unit and is configured to detect the voltage and current information of DC power passing through the first bus metering module; The first battery metering module is electrically connected to the first DC / DC bidirectional module and the battery, and is configured to detect the voltage and current information of the battery during charging and discharging. The first lamp metering module is electrically connected to the fourth DC / DC module and the energy storage lamp, and is configured to detect the power supply voltage and current information of the energy storage lamp.

11. The urban road lighting system according to claim 9, characterized in that, The energy storage driver is also equipped with a second auxiliary source metering module and a second auxiliary source output module; The second auxiliary source metering module is electrically connected to the fifth DC / DC module and is configured to detect the current and voltage information of the second auxiliary source output module; The second auxiliary source output module is electrically connected to the second auxiliary source metering module and is configured to output as an auxiliary power source. The second auxiliary source output module is also signal connected to the communication unit.

12. The urban road lighting system according to claim 2, characterized in that, The IoT DC power supply includes a line switch module, a second DC / DC bidirectional module, a sixth DC / DC module, a seventh DC / DC module, and a third control module; The circuit switch module is connected to the battery via the second DC / DC bidirectional module. The circuit switch module and the second DC / DC bidirectional module are configured to receive DC power from the photovoltaic panel and charge the battery. The circuit switch module is electrically connected to the photovoltaic lamps via the sixth DC / DC module and is configured to supply power to the photovoltaic lamps. The line switch module is also electrically connected to the third control module and the communication unit via the seventh DC / DC module, and is configured to supply power to the third control module and the communication unit; The third control module is electrically connected to both the line switch module and the second DC / DC bidirectional module, and is configured to control the operating states of the line switch module and the second DC / DC bidirectional module according to preset requirements; when the line switch module is turned on, the second DC / DC bidirectional module controls the battery to perform charging, and the line switch module supplies power to the photovoltaic lamps and the third control module electrically connected to it; when the line switch module is turned off, the second DC / DC bidirectional module controls the battery to perform discharging, and the battery supplies power to the photovoltaic lamps and the third control module electrically connected to the second DC / DC bidirectional module.

13. The urban road lighting system according to claim 12, characterized in that, The metering module in the IoT DC power supply includes a second bus metering module, a second battery metering module, and a second lighting metering module. The second bus metering module is electrically connected to the output terminal of the line switch module and is configured to detect the voltage and current information of the DC power output from the photovoltaic panel through the second bus metering module; The second battery metering module is electrically connected to the second DC / DC bidirectional module and the battery, and is configured to detect the voltage and current information during battery charging and discharging. The second lamp metering module is electrically connected to the sixth DC / DC module and the photovoltaic lamp respectively, and is configured to detect the power supply voltage and current information of the photovoltaic lamp.

14. The urban road lighting system according to claim 12, characterized in that, The IoT DC power supply also includes an eighth DC / DC module, a third auxiliary source metering module, and a third auxiliary source output module. The eighth DC / DC module is electrically connected to the output terminal of the line switch module; The third auxiliary source metering module is electrically connected to the eighth DC / DC module and is configured to detect the current and voltage information of the constant voltage current passing through it. The third auxiliary source output module is electrically connected to the third auxiliary source metering module and is configured to output as an auxiliary power source. The third auxiliary source output module is also signal connected to the communication unit.

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