RU175522U1 - Automated Lighting Control Unit - Google Patents

Abstract

The automated lighting control unit refers to energy-saving lighting systems and can be used for automated control of outdoor and workshop lighting networks. The device consists of two electronic boards located in a waterproof enclosure: a logic board and an I / O Board connected to each other by a data bus in the form of a cable loop. The Logic Board contains a GSM module, which It acts as a central processor, a microcontroller (hereinafter referred to as MK), which launches and reboots the GSM module, as well as provides communication with the I / O board. There are also two SIM cards that provide reliable communications. In addition, there is a P3 connector cable connector, a USB connector and an MK programming connector on the board. The GSM-module provides communication with the server, receives control or configuration commands and transfers data. It also controls the operation of the MK and receives data on the status of discrete inputs from the MK via the I2C serial port. MK on command of the GSM module performs the output control. The I / O Board I / O board contains an AC / DC network converter, a DC / DC converter for organizing input isolation, two RS-485 interfaces. In addition, the board contains connectors for connecting power, sensors, starters, a connector for connecting a P3 loop cable, as well as 4 ionistors and their protective diodes. The I / O Board I / O Board can accommodate up to 12 universal I / O. The versatility of inputs and outputs is achieved by installing certain components on the board. The product is located in a plastic case with a DIN rail mount and a transparent cover for easy replacement of SIM cards and indication control. Disconnectable terminal blocks are used to connect wires or organize a detachable electrical connection, which provides convenient installation, simple disassembly and replacement of the product. Adopted technical solutions make it possible to ensure a sufficient level of fault tolerance during operation of the device both in the city and in remote places. The solution provides work in conditions with a difficult climate, at extremely low temperatures, as well as in high humidity or a sharp change in climatic conditions. Provides a backup communication channel, maintains operability in case of poor power supply. In addition, the device allows you to increase functionality by connecting additional modules via the RS-485 bus (for example, controlling each lamp or a group of lamps using a base station and PLC (power line communication) technology. 4 zp files, 3 ill.

Description

The device relates to energy-saving lighting systems and can be used for automated control of outdoor and workshop lighting networks.

The following technical solutions are known from the prior art.

- Patent "Remote switch loop based on GPRS controller" (CN 202121846, IPC G08C 17/02; H05B 37/02, published 18.01.2012). A utility model discloses a remote switch based on a GPRS controller. The remote switch mainly includes a GPRS controller, a street lamp control switch and street lamps, which in connection with the series are in the order in which the street switch control lamp is connected to the power source, and the street lamps are connected to ground wires. Advantages include that after concentrated monitoring by the GPRS controller, the remote switch cycle reduces, lighting the time efficiently, satisfying the urban landscape lighting or lantern requirements, thereby saving a large amount of electrical energy.

The disadvantage of this model is the inability to monitor low-voltage complex devices that act as a supply node, which are used to build street lighting networks in the Russian Federation.

- "Street lamp control system constructed based on GPRS (General Packet Radio Service) wireless network" (CN 102307416, IPC G08C 17/02; H05B 37/02; H05B 37/03, published 04.01.2012). The invention discloses a street lamp control system built on the basis of a GPRS (General Packet Radio Service) wireless network. The street lamp control system basically contains a central monitoring system, a GPRS network system and a streetlight control system field that is connected in series, in which the center of the monitoring system contains a network router, processor and memory, which are connected in series; and the network router is connected to GPRS from the network system. The invention has the advantage that the street warning lamp system can be used to monitor parameter information, conduct a single point independent monitoring, supporting group monitoring, unloading upstream data for automatic analysis and can be connected to external equipment.

This model, unlike the one presented above, can already be used for monitoring the parameters of the supply nodes, but it has a significant drawback in that only one GPRS communication channel is used. In the absence of communication through one provider, the system will not be able to contact the server and transfer data to the dispatching console, and it will also be impossible to control such a system remotely. This problem is especially relevant for remote areas of the Russian Federation, where the signal level of mobile operators is often not very high.

In addition, the patent “Energy-saving wireless controller for street lighting control” is known (RU 128813, IPC H05B 37/02, published on 05.27.2013). The utility model relates to the field of information collection and remote control of geographically remote objects, such as lamps on poles, as well as other devices in street lighting networks and the subsequent processing of the results obtained as a result of information collection, and the issuance of analysis results in the form of graphs, tables and diagrams . The technical result is the saving of electricity in street lighting networks and the provision of automatic control on and off of lamps on poles and lighting lines. The technical result is achieved due to the fact that the switching on and off of the lamps is carried out according to the level of natural illumination and the given algorithm, as well as due to the fact that at the specified time the lamps are switched off in the lighting lines through the pole, and also one section of the lamps is turned off when using two-section or two-lamp fixtures.

The disadvantage of this utility model is that the presented unit controls only two outgoing lines, which can create asymmetry of currents in three-phase power supply networks, due to phase load inequality (phase imbalance), and adversely affect the quality of power in lighting lines.

"A method and system for controlling electrical equipment, in particular a lighting system" (RU 2474030, IPC H02J 13/00, H05B 37/02, publ. 01.27.2013) is used in the field of electrical engineering. The technical result of the use of the invention is to increase the range of data transmission and exchange rate. The method consists in the fact that the data exchange between the fixtures and the communication module of the executive point is carried out by means of information packets with encoded information according to the exchange protocol, simultaneously to all fixtures that are constantly in the receiving state, at any time, without synchronizing their start of transmission with which Either the parameters of the power supply network.

The disadvantage of the invention is that it is aimed at controlling the fixtures, which requires the installation of additional receiving equipment in each fixture, and therefore, significantly increases the cost of the solution as a whole. Also, due to the inevitable attenuation of the control signal of luminaires at a distance, this solution is not applicable on long power lines, such as highways and highways.

The closest technical solution is the patent "Remote switch loop based on general packet radio service (GPRS) controller" (CN 102316639, IPC G08C 17/02; H05B 37/02, published 11.01.2012). The invention discloses a remote cycle switch based on General Packet Radio Communication (GPRS) controller, which mainly consists of a GPRS controller, a street switch control lamp and street lamps, in which a GPRS controller, a control lamp and street lamps are connected in series, a street switch the control lamp is also connected to the power source, and, in addition, the street lamp is connected to the ground wire. The cycle of the remote switch has the advantage that, based on the comprehensive monitoring of the GPRS controller, the city landscape lighting or a lantern, the requirement is met at the same time, and the lamp operating time is effectively reduced, so a large amount of electrical energy is saved.

The disadvantage of this model is the inability to connect Russian electricity meters, which is unacceptable for use on the territory of the Russian Federation, as well as the lack of backup communication channels, which is poorly applicable in geographically remote areas or when problems arise with one of the cellular communication operators and may lead to a lack of control and control of such a unit.

The objective of the proposed utility model is to improve remote automatic control of street lighting by eliminating the use of the cascade principle and laying communication control networks. In addition, the implementation of remote and automatic control of various lighting modes by setting autonomous lighting schedules that allow you to automatically switch depending on the schedule or sunrise and sunset times. Another objective of the proposed utility model is to reduce energy consumption by up to 40% by changing lighting schedules, eliminating the “human factor” by automating the process, and reducing the cost of laying telecommunications equipment as unnecessary. In addition, the system allows monitoring of low-voltage complex equipment used as a supply unit and interrogating electricity meters certified in the Russian Federation.

The problem is solved by using the built-in GSM-transceiver and a control controller, allowing simultaneous monitoring and control of the power unit equipment. A distinctive feature of this solution is to ensure the highest quality autonomous operation of the device without human intervention in remote areas. The system is resistant to insufficient cellular signal or interruptions in the provision of cellular operator services, interruptions in power lines, moisture resulting from condensation inside control cabinets or changes in weather conditions.

The essence of the utility model is that the automated lighting control unit combines a number of solutions that can significantly increase the fault tolerance of the system. Increasing system fault tolerance is determined by the separation of the logic block (Logic Board) and the input-output unit (IO Board) into two independent boards. This allows the device to remain operational when the rated voltage is exceeded by several tens of times. Even with a physical failure of the I / O board (including fire), a separate logic board remains operational and allows the dispatcher to transmit information about the critical state of the object.

High-quality communication of the automated lighting control unit is supported by two SIM-cards with the ability to switch to a backup communication channel in the absence of communication on the main one. This allows you to stay in touch with the server and the control room with a complete failure in the operability of one of the mobile operators.

The fault tolerance of the automated control unit is also ensured by the installation of a long-term backup power supply inside the automated control unit based on ionistors, which allows solving the problem of power outages, maintaining the device’s operability and communication with a complete power loss of up to 5 minutes.

Due to the fact that the device is equipped with a moisture and dustproof housing, it is protected against moisture as a result of getting into the control cabinet due to weather conditions or the formation of condensate.

Implementing the simultaneous operation of two RS-485 I / O ports allows you to significantly expand the functionality of the automated lighting control unit (by connecting expansion units, for example, a lighting control base station), and also provides the ability to connect supported electricity meters.

The presence of three outputs makes it possible to organize control of three contactors, which in turn allows you to evenly distribute the load in a three-phase network.

The device controls the built-in heater, which is very important for work in regions with low temperature conditions.

The presence of several input signals allows monitoring the state of the power unit and control cabinet elements, such as line voltage, status contacts, door open sensors, fire detectors, etc.

The device is illustrated in the graphic part:

in FIG. 1 is a block diagram of a developed product;

in FIG. 2 is a block diagram of a Logic Board logic board;

in FIG. 3 is a block diagram of an I / O Board.

The device consists of two electronic boards located in a waterproof housing: logic board (logic board) and I / O board (I / O Board) (figure 2 and figure 3), interconnected by a data bus in the form of a cable loop.

The Logic Board logic board (Fig. 2) contains a GSM module (Fig. 1 and Fig. 2), which acts as a central processor, a microcontroller (hereinafter MK) (Fig. 1), which starts and restarts the GSM module (Fig. 1). 1 and 2), as well as providing communication with the I / O board. There are also two SIM-cards (Fig. 1 and Fig. 2), providing reliable communications. In addition, on the board there is a connector for connecting a connecting cable P3 (figure 2), a USB connector (figure 2) and a programming socket MK. The GSM-module provides communication with the server, receives control or configuration commands and transfers data. He also controls the operation of the MK and receives data on the status of discrete inputs from the MK through the serial port I2C (figure 2). MK at the command of the GSM module controls the outputs.

The I / O Board I / O board (FIG. 3) contains an AC / DC network converter (FIG. 3), a DC / DC converter for arranging isolation of communication lines between the Logic Board and I / O Board (FIG. 1 and FIG. 3), two RS-485 interfaces (Fig. 1 and Fig. 3). In addition, on the board there are connectors for connecting power, sensors, starters, a connector for connecting a P3 loop cable (Fig. 3), as well as 4 ionistors and their protective diodes. On the I / O Board I / O board (Figure 3), you can place up to 12 universal I / O. The versatility of inputs and outputs is achieved by installing certain components on the board.

The utility model is housed in a plastic case with a DIN rail mount and a transparent cover for easy replacement of SIM cards and indication control. For connecting wires or organizing a detachable electrical connection, detachable terminal blocks are used, which provides convenient installation, simple dismantling and unit replacement.

 The power supply of the automated lighting control unit is carried out with a voltage of ~ 85-264 V with a frequency of 47-63 Hz. If the external power supply fails, the GSM module will be provided with a battery on ionistors for 5 minutes.

The automated lighting control unit has a number of universal isolated inputs and outputs that have surge protection, some of which can be configured as outputs.

The inputs can be used to connect dry contact sensors or serve as discrete inputs of the mains voltage. The choice of one of the three functions of the universal inputs and outputs is carried out at the stage of assembly of the printed circuit board by installing the corresponding electronic components. This achieves satisfactory flexibility, eliminating the need for the development and modernization of hardware.

An example of the implementation of the versatility of inputs and outputs: nine discrete inputs of the “dry contact” type for monitoring the status of fire / smoke sensors, opening a door, an operating mode, a contact of the state of protective circuit breakers and starters of the low-voltage switchgear, and four discrete outputs of the type “electromechanical relay” for controlling three starters and one heater.

The built-in temperature sensor allows for automatic operation of the heating system.

The automated lighting control unit is divided into a logical part and a part of the inputs and outputs, which provides galvanic isolation from the network, increased protection against overvoltage and interference from lightning discharges, as well as increased maintainability and simplified device upgrades in the future.

To power external devices, such as a light sensor, an output of 12 V is provided in the automated lighting control unit.

To connect meters and various expansion units, the automated lighting control unit uses 2 RS-485 interfaces with isolation and protection against electrostatic discharge and overvoltage.

The logic of the automated lighting control unit is programmed in the built-in GSM module and can be changed remotely via the GPRS channel.

The block of automated lighting control provides for the use of two SIM-cards, which increases the reliability of operation.

The following types of indications are provided in the automated lighting control unit: signal level, active SIM card, RS-485 interface exchange, and external power supply.

Power wires connect to the connectors on the I / O Board. This allows you to isolate the Logic Board from high voltage coming through the connected wires, both galvanically and physically, which reduces the likelihood of failure of the Logic Board in an emergency.

The basis of the uninterruptible power supply (hereinafter UPS) was taken as an assembly of several ionistors, since they have a wide temperature range and do not require special charge circuits. Using batteries would require regular replacement and maintaining a positive temperature, and using a battery would require a special charge circuit. Despite the small capacity, the ionistors do not need maintenance, unlike rechargeable batteries and batteries. Due to the low capacity, the UPS only supplies the GSM module in order to transmit a signal about power failure before shutting down.

The device is turned on by supplying voltage to the power terminals. The built-in power supply provides electronic circuits. The microcontroller includes a GSM modem (Fig. 1 and Fig. 2), which in turn goes to the GPRS network. The integrated microcontroller also provides output control and input control on the I / O board.

For the operation of the automated lighting control unit in the GSM / GPRS network, an external antenna must be connected and standard SIM cards installed in special holders. The antenna is selected for reasons of the necessary gain level. It is allowed to install / remove the SIM card with the device turned on.

When a power supply appears or when a power failure occurs, or when any of the signals changes, the automated lighting control unit registers the change, generates an event and, if there is a connection, sends it to the collection server. Sending system events and data events is performed with delivery control, which ensures the integrity of information.

In the absence of communication, problems with the server, problems with the telecom operator, periodic attempts are made to restore communication with the server and switch between two SIM cards. Moreover, all registered events are accumulated in the memory of the automated lighting control unit. In the event of a power failure, all accumulated information is stored in non-volatile memory. Thus, the loss of events during regular operation is excluded.

During autonomous operation, the automated lighting control unit executes all commands according to a predetermined schedule. For remote control, there is a mechanism for performing tasks that are set in the collection server software. So, engineering or operational personnel can set tasks for the automated lighting control unit on the collection server and monitor the result of their implementation.

These tasks include:

- request the current status of signals;

- reading the event log;

- activation and deactivation of the device;

- setting the burning schedule;

- remote control of magnetic starters;

- taking readings of sensors and metering devices;

- reading, writing configuration parameters, etc.

On the collection server, tasks are set and monitored, with the current status of execution displayed.

The operation of the claimed utility model is provided as follows.

After applying voltage to the automated lighting control unit, the GSM module communicates with the server. At the same time, it polls the status of all sensors from the I / O board and sends information about their status to the server. If it is not possible to establish a connection, a cyclic switching between available communication channels (including a backup SIM card) takes place. The following methods of communication are available to the GSM module: GPRS (EDGE, 3G); SMS CSD Ethernet (when connecting the appropriate expansion unit).

If it is not possible to get in touch, the automated lighting control unit begins to work in autonomous mode, fully ensuring the operability of the power unit according to predetermined combustion schedules (including the solar calendar and preset dimming levels) by transmitting control signals to the I / O board. The automated lighting control unit accumulates in permanent memory all the events occurring at the facility. When communication is restored, the GSM module sends all stored events to the central server and maintains further communication with it to ensure real-time operation (telemetry), signaling statuses and states, as well as changing burning schedules at the request of the dispatcher. In case of insufficient temperature, the automated lighting control unit automatically turns on the heater. The automated lighting control unit also constantly monitors the voltage in the power lines, interrogates electricity meters, works with expansion units (via the RS-485 bus), monitors warning signals (fire, door opening, etc.), timely informing of their change to server.

The automated lighting control unit synchronizes the built-in clock with an electricity meter or NTP servers when it is possible to access the GPRS network. When the time comes for switching or dimming according to a predetermined schedule or a dispatcher command, the contactors are controlled by supplying control signals to the I / O board or commands are sent to expansion units via the RS-485 bus, thereby ensuring the operability of the lighting complex in both manual and automatic mode.

The adopted technical solutions allow us to ensure a sufficient level of fault tolerance during operation of the device both in the city and in remote places. The utility model provides work in conditions with a difficult climate, at extremely low temperatures, as well as in high humidity or a sharp change in climatic conditions. Provides a backup communication channel, maintains operability in case of poor power supply. In addition, the device allows you to increase functionality by connecting additional modules via the RS-485 bus (for example, controlling each lamp or group of lamps by connecting a base station and PLC technology (power line communication)).

Thus, the task of automation of lighting control is solved regardless of the territorial, climatic and operational conditions, which is especially important for a large territory of the Russian Federation. The solution is economically advantageous not only by automating the setting of combustion schedules, but also by reducing maintenance costs, and also allows it to be operated at remote and inaccessible facilities.

Claims (5)

1. An automated lighting control unit with the ability to address control of each luminaire, containing a programmable GSM module and using it as the main communication channel and the main logic module having channels for monitoring the status of power equipment, characterized by the presence of a moisture and dustproof housing with two built-in RS485 interfaces , primary and backup SIM cards and separate logic boards (Logic Board) and input-output (I / O Board). 2. The automated lighting control unit according to claim 1, characterized in the simultaneous operation of two RS-485 input-output ports, which allows controlling the internal and external heating system and monitoring the presence of voltage in three phases. 3. The automated lighting control unit according to claim 1, characterized by the presence of a backup power source with a long operating life on the basis of ionistors, supporting autonomous operation of the module for up to five minutes. 4. The automated lighting control unit according to claim 1, characterized in that the moisture-proof housing has nine discrete inputs of the “dry contact” type for monitoring the status of fire / smoke sensors, opening a door, an operating mode, a contact of the state of protective circuit breakers and starters of a safety switchgear. 5. The automated lighting control unit according to claim 1, characterized in that the moisture-proof housing has four discrete outputs of the type "electromechanical relay" for controlling three starters and one heater.

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