CN211019388U

CN211019388U - Intelligent street lamp single lamp control terminal based on multiple information acquisition of NB-IOT technique

Info

Publication number: CN211019388U
Application number: CN201922154407.0U
Authority: CN
Inventors: 王洪峰; 刘东平; 吴书娥
Original assignee: Tianjin Yaotong Technology Co ltd
Current assignee: Tianjin Yaotong Technology Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-07-14
Anticipated expiration: 2029-12-05

Abstract

The utility model relates to an intelligence street lamp list lamp control terminal based on multiple information acquisition of NB-IOT technique, including the pressure regulating module, measuring module, embedded MCU, NB-IoT communication module and AC relay, the brightness control module, by the power supply of street lamp electrical power generating system, carry out voltage conversion through the pressure regulating module and be DC power supply for its power supply, measuring module gathers the voltage of street lamp, electric current, power consumption information, report to NB-IoT basic station through connecting circuit and through NB-IoT communication module with the information of gathering, the instruction is issued to NB-IoT basic station, communicate embedded MCU through NB-IoT communication module, with street lamp brightness control module and the AC relay of control list lamp. The terminal can collect street lamp data in real time, monitor street lamp information such as street lamp voltage, current, power consumption and the like, further analyze the working state of the street lamp, and save manpower and material resources costs without manual on-site inspection.

Description

Intelligent street lamp single lamp control terminal based on multiple information acquisition of NB-IOT technique

Technical Field

The utility model belongs to the information control field relates to the intelligent control to the street lamp through the information means, especially an intelligent street lamp list lamp control terminal based on multiple information acquisition of NB-IOT technique.

Background

With the increasing number of lighting facilities, types and numbers, a great deal of maintenance work and maintenance cost and potential safety hazards which are not easy to find in time bring great difficulty to city management, so how to effectively manage the urban lighting facilities is the current biggest problem of city management departments, and the traditional management mode adopting the traditional extensive, passive and unsupervised mechanisms cannot meet the requirements of modern city lighting management.

At present, the urban illumination management still adopts a more traditional clock control mode, particularly, the lighting condition can not be adjusted according to the requirement in a heavy festival or in rainy days, a single lamp can not be controlled, the time can not be timely corrected and the lamp switching time can not be modified according to the actual condition, and the illumination according to the requirement can not be realized. The running condition of the street lamp cannot be monitored accurately in real time, and the condition of lighting in the daytime due to lamp failure or damage of a street lamp controller cannot be fed back to a monitoring center in time. The number of the street lamps is very large, the types are very complicated, the distribution is very wide, the existing lighting facility fault finding mechanism still mainly adopts a manual inspection mode, the workload is large, a large amount of manpower and material resources are required to be input, and blind spots can be left; and the current street lamp can't throw light on as required, has caused 30% electric energy waste, and the energy resource consumption is big, also forms light pollution easily.

Through the search of published patent documents, the following three patents related to the present patent application are found:

1. a street lamp intelligent control terminal (cn107770927A) comprises a power management chip, a singlechip, a current sensor, a relay drive circuit, a power carrier circuit and a coupling circuit; one end of the power management chip is connected with a power line, and the other end of the power management chip is connected with the single chip microcomputer, the current sensor, the relay drive circuit and the power carrier circuit; the power carrier circuit is connected with the single chip microcomputer and the coupling circuit; the coupling circuit is connected with a power line. The invention realizes intelligent control of the street lamps by the power line carrier technology, can realize cluster control of the street lamps, can realize information query of the condition of a single street lamp, and can realize real-time understanding of the energy-saving and consumption-reducing conditions of the street lamps.

2. A multi-line light control terminal (cn 208258152U) comprises a bulb and a controller, and simultaneously supports multi-data instruction transmission to a central control system, wherein a main control direct current power supply output end OUT of the controller supplies power to an electromagnet, a direct current power supply end OUT of the controller is electrically connected to a conductor column, and the bottom end of the conductor column is fixed on a base; in the implementation of the utility model, the administrator sends OUT an order to the CPU unit, the power supply unit supplies power to the electromagnet through the main control direct current power supply output end OUT1, the conductor ring moves upwards to connect the metal contacts at different positions, the linear potentiometer detects the position of the conductor ring, and after the processing of the CPU unit, the conductor ring is kept in contact with the corresponding metal contact, and the bulb set by the administrator is kept to be supplied with power; when multi-path lamplight is controlled, huge heating amount generated by direct allocation of a power supply circuit is prevented, and a single line or a plurality of lines receive power supply and transmit related data instructions to a central control terminal and a background system.

3. A traffic street lamp remote control terminal system (104684132A) comprises a data information processing module, a data collection module, a voice recognition module, a voice encryption server, an ultraviolet remote control device, a control module, a power line carrier module and a transformer. The voice encryption server is connected with the ultraviolet remote control device through a circuit, the ultraviolet remote control device is connected with the data collection module through a circuit, the control module is connected with the data collection module through a circuit, the power carrier module is connected with the data collection module through a circuit, and the control module is connected with the power carrier module through a circuit. The control terminal system realizes the change of the brightness, the chromaticity and the pattern of the street lamp and the on and off of the lamp through the ultraviolet remote control module without changing a circuit for adjustment, and transmits working condition data to a command center, thereby improving the working efficiency.

Through the comparison of technical characteristics, the three publications and the patent application have different purposes and technical schemes, and the novelty and the creativity of the patent application are not damaged.

Disclosure of Invention

An object of the utility model is to overcome prior art's weak point, provide an intelligence street lamp list lamp control terminal based on multiple information acquisition of NB-IOT technique, but this terminal real-time collection street lamp data, street lamp information such as monitoring street lamp voltage, electric current, power consumption, and then analysis street lamp operating condition need not the manual work scene and patrols and examines, practices thrift manpower and materials cost.

The purpose of the utility model is realized like this:

the intelligent street lamp single lamp control terminal comprises a voltage regulating module, a measuring module, an embedded MCU, an NB-IoT communication module, an alternating current relay and a brightness regulating module, wherein the street lamp power system supplies power, the voltage regulating module converts voltage into direct current power to supply power to the street lamp single lamp control terminal, the measuring module collects voltage, current, power and power consumption information of a street lamp, the collected information is reported to an NB-IoT base station through a connecting circuit and the NB-IoT communication module, the NB-IoT base station issues an instruction, and the instruction is transmitted to the embedded MCU through the NB-IoT communication module so as to control the street lamp brightness regulating module and the alternating current relay of a single lamp.

The isolation circuit of the voltage regulating module comprises an isolation transformer L1, a power conversion module U1, U2, a rectification circuit C1, C2, C4, C5, diodes D1 and D2, wherein alternating current is input from a P1 source, is rectified by the rectification circuit C1, C2, C4 and C5 through the isolation transformer L1, the power conversion module U1 and U2 and is converted into direct current power, and the rectified direct current power is isolated by the diodes D1 and D2.

Moreover, the power circuit of the voltage regulating module comprises a voltage conversion chip U3, a voltage conversion chip U5, an isolation power module U7 and an interface P2, wherein the voltage conversion chip U3 is used for charging the lithium battery of the interface P2 under the condition that external alternating current is electrified; the voltage conversion chip U5 is the main DC power source of the low voltage side, and the isolation power module U7 provides the isolation power for the measurement module of the high voltage side.

The connecting circuit is a connecting circuit between the measuring module and the embedded MCU, the high-voltage side of the connecting circuit is connected with the measuring module, and the low-voltage side of the connecting circuit is connected with the embedded MCU; the connection circuit adopts two isolation modes of magnetic coupling bus isolation and optical coupling signal isolation.

In the magnetic coupling bus isolation circuit, U8 is a four-channel digital isolator which is used as an isolator of an SPI bus and communicates a low-voltage side with an SPI bus of a high-voltage side; in the optical coupling signal isolation circuit, an isolation circuit formed by a digital signal optical coupling isolator U10 and peripheral circuit I/O signals is used for transmitting a control signal sent by the MCU to the measurement module.

The utility model has the advantages that:

1. the utility model discloses a measuring module can convert alternating current power supply input into DC power supply's function to have the effect of isolation power supply, prevent low pressure side DC power supply and alternating current power supply coupling.

2. The connecting circuit of the utility model arranges the measuring module at the high-voltage side, thereby accurately measuring the value of the alternating current voltage current; meanwhile, the embedded MCU and the NB-IoT module are arranged on the low-voltage side, so that danger is not easy to occur in manual operation, the interference of an alternating current signal to a circuit is reduced, the power supply of the low-voltage side is supplied by a battery under the condition that the alternating current power supply is not accessed, and the communication between the equipment terminal and a service platform is ensured.

3. The utility model discloses can gather street lamp data in real time, street lamp information such as monitoring street lamp voltage, electric current, power consumption, and then analysis street lamp operating condition need not the manual work scene and patrols and examines, practices thrift manpower and materials cost.

4. The utility model discloses can carry out single lamp control, single lamp time switch, adjustting of the lighteness carries out the period control as required, practices thrift power consumption.

5. The utility model discloses a NB-IoT communication technology communicates with backstage management and control platform, realizes the monitoring and the control to each lamp, need not the wiring, simple to operate.

Drawings

Fig. 1 is a block diagram of a control circuit of the present invention;

FIG. 2 is a schematic diagram of an isolation circuit of the measurement module of FIG. 1;

FIG. 3 is a schematic diagram of a power circuit of the measurement module of FIG. 1;

fig. 4 is a schematic diagram of the connection circuit of the present invention.

Detailed Description

The invention will be further illustrated with reference to the following examples: the following examples are illustrative and not intended to be limiting, and the scope of the present invention is not limited by the following examples.

An intelligent street lamp single lamp control terminal based on NB-IOT technology multiple information acquisition, see figure 1, comprises a voltage regulation module, a measurement module, an embedded MCU, an NB-IoT communication module, an AC relay and a brightness regulation module, wherein the control terminal is powered by a street lamp power supply system, voltage is converted into DC power supply through the voltage regulation module to supply power to the street lamp single lamp control terminal, the measurement module acquires voltage, current, power consumption and other information of the street lamp, the acquired information is reported to an NB-IoT base station through the NB-IoT communication module, the NB-IoT base station comprehensively analyzes whether the street lamp works normally or not, the street lamp single lamp is controlled according to actual demand conditions, the NB-IoT base station issues an instruction, the instruction is transmitted to the embedded MCU through the NB-IoT communication module to control the street lamp brightness regulation module and the AC relay of the single lamp, and the timing switch of the street lamp, And (5) adjusting the brightness.

The utility model discloses measuring module's isolation circuit schematic diagram refers to fig. 2, including isolation transformer L1, power conversion module U1, U2, still include rectifier circuit C1, C2, C4, C5 and diode D1, D2, the alternating current source is imported from P1, through isolation transformer, two parallelly connected power conversion modules, convert into DC power supply after rectifier circuit C1, C2, C4, C5 rectification, adopt diode D1, D2 to carry out the power isolation after the rectification, in order to prevent low pressure side DC power supply and AC power supply coupling, isolation transformer L1 makes the low voltage power supply input circuit of transformer rear end and the high-pressure side of transformer front end keep apart, power conversion module U1, U2 adopts H L K-PM01 and H L K-5M12 respectively, convert the AC 220V power supply into DC 5V and direct current 12V.

Fig. 3 is a power circuit diagram of the measurement module, and U3 is a voltage conversion chip TP4057, which converts a direct-current 5V voltage into a charging voltage of a 4.2V lithium battery and has a certain current-limiting protection function; the P2 is the interface of lithium cell, can be under the condition of not having access to alternating current power supply, by the power of lithium cell supply low pressure side, guarantee equipment terminal and service platform's communication, and the charging circuit of voltage conversion chip U3 can be under the external alternating current circular telegram condition, charges for the lithium cell of P2, improves the stability that equipment connects. U5 is a power conversion chip XC6206P332MR, converts DC 5V into 3.3V, has lower quiescent current and is a main DC power source at a low-voltage side; u7 is isolation power module IB1205XT-1WR2, can convert DC 12V power into DC 5V, and the input and output power is not common ground, has 1500VDC voltage isolation, provides isolation power for the measurement module at the high-voltage side, and ensures the normal operation of the measurement module. The circuit can enable the terminal to continue to communicate with the service platform under the condition of external alternating current power failure,

the utility model discloses a schematic diagram of connecting circuit refers to fig. 4, is the connecting circuit between measuring module, the embedded MCU, its high pressure side connects measuring module, embedded MCU is connected to the low pressure side, measuring module hangs on high-pressure interchange, and embedded MCU connects in the low pressure side, the low pressure side circuit is personnel's operation side, in order to avoid personnel to contact the alternating current electric shock, need keep apart with the high pressure side, measuring module's communication and reset signal adopt two kinds of isolation modes through connecting circuit, namely magnetic couple bus isolation and opto-coupler signal isolation, in magnetic couple bus isolation circuit, U8 is four-channel digital isolator ADUM1411, three digital signal isolators that advance one and one go out, can be used as the isolator of digital bus signal, the SPI bus communication of intercommunication low pressure side and high pressure side, in opto-coupler signal isolation circuit, U10 is digital signal opto-coupler isolator L TV217, have nonlinear opto-coupler isolation characteristic, realize the isolation circuit that peripheral circuit I/O signal constitutes, be used for transmitting the control signal (for example reset signal) that MCU sent to measuring module.

The embedded MCU and the NB-IoT module work on the low-voltage side, so that danger is not easy to occur in manual operation, interference of alternating current signals to a circuit is reduced, and the problems of bus transmission and signal transmission between high voltage and low voltage are solved.

In this embodiment, a main chip of the measurement module adopts RN8209D, an embedded MCU adopts STM8151, and a brightness adjustment module adopts L M321.

The parts of the embodiment not described in detail, including the peripheral circuit, belong to the prior art, and will not affect the technical expression of the present application, and are not described herein again.

The utility model can connect the single lamp controller into the street lamp power circuit, and the street lamp power system supplies power for the single lamp controller; the single lamp controller is installed and fixed on a street lamp pole, and the static GPS positioning of the street lamp of the system management and control platform is reported through the mobile phone, so that the position information is provided for future operation and maintenance.

Claims

1. The utility model provides an intelligence street lamp list lamp control terminal based on multiple information acquisition of NB-IOT technique which characterized in that: the street lamp brightness adjusting module comprises a voltage adjusting module, a measuring module, an embedded MCU, an NB-IoT communication module, an alternating current relay and a brightness adjusting module, wherein the street lamp power supply system supplies power, the voltage adjusting module converts voltage into direct current power to supply power to the direct current power supply, the measuring module collects voltage, current, power and power consumption information of the street lamp, the collected information is reported to an NB-IoT base station through a connecting circuit and the NB-IoT communication module, the NB-IoT base station issues an instruction, and the instruction is transmitted to the embedded MCU through the NB-IoT communication module so as to control the street lamp brightness adjusting module and the alternating current relay of a single lamp.

2. The intelligent street lamp single-lamp control terminal based on NB-IOT technology multiple information acquisition of claim 1, wherein the isolation circuit of the voltage regulation module comprises an isolation transformer L1, a power conversion module U1, U2, a rectification circuit C1, C2, C4, C5, a diode D1, and a diode D2, wherein the alternating current is input from P1, rectified by the isolation transformer L1, the power conversion module U1, and the power conversion module U2, and then converted into a direct current power supply through the rectification circuit C1, C2, C4, and C5, and the rectified power supply is isolated by the diodes D1 and D2.

3. The intelligent street lamp single-lamp control terminal based on NB-IOT technology multiple information acquisition of claim 1, characterized in that: the power supply circuit of the voltage regulating module comprises a voltage conversion chip U3, a voltage conversion chip U5, an isolation power supply module U7 and an interface P2, wherein the voltage conversion chip U3 charges a lithium battery of the interface P2 under the condition that external alternating current is electrified; the voltage conversion chip U5 is the main DC power source of the low voltage side, and the isolation power module U7 provides the isolation power for the measurement module of the high voltage side.

4. The intelligent street lamp single-lamp control terminal based on NB-IOT technology multiple information acquisition of claim 1, characterized in that: the connecting circuit is a connecting circuit between the measuring module and the embedded MCU, the high-voltage side of the connecting circuit is connected with the measuring module, and the low-voltage side of the connecting circuit is connected with the embedded MCU; the connection circuit adopts two isolation modes of magnetic coupling bus isolation and optical coupling signal isolation.

5. The intelligent street lamp single-lamp control terminal based on NB-IOT technology multiple information acquisition of claim 4, characterized in that: in the magnetic coupling bus isolation circuit, U8 is a four-channel digital isolator which is used as an isolator of an SPI bus and is communicated with the SPI bus of a low-voltage side and a high-voltage side for communication; in the optical coupling signal isolation circuit, an isolation circuit formed by a digital signal optical coupling isolator U10 and peripheral circuit I/O signals is used for transmitting a control signal sent by the MCU to the measurement module.