RU2782238C1 - Lamp condition monitoring system in adaptive lighting control system - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering and can be used for remote control of electric power consumers, in particular in an adaptive lighting control system. The system contains a transmitter (1), receivers (5) located along the power supply line. The system contains a radio receiver (10) and feedback elements of each receiver (5) with a radio receiver (10). The feedback elements of each receiver contain a radio transmitter (12) and a sensor of system parameters (13), forming a node for collecting and transmitting information (11). In this case, the output of the sensor (13) is connected to one of the inputs of the microprocessor unit (6) of the receiver, the output of which is connected to the input of the radio receiver (10). The radio receiver (10) is connected to the microprocessor unit (2) of the transmitter (1). The node for collecting and transmitting information (11), i.e. the location of the radio transmitter (12) and the sensor/sensors (13) is determined by the purpose and functionality of the system.

EFFECT: expanding the functionality of the address information transmission system via the AC power supply line while improving the validity and reliability of object management.

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Description

The invention relates to the field of electrical engineering and can be used for remote control of electricity consumers, in particular in an adaptive lighting control system.

Known hardware and software system for the implementation of wireless intelligent lighting control (see patent for the invention of the Russian Federation No. 2752423, IPC H05B 47/105, publ. 07/28/2021), which includes a hardware consisting of a coordinator with server functions and data aggregator, controller for controlling lamps, electrical appliances and the ability to measure power consumption, a multisensor with the ability to connect sensors with a dry contact. The server software provides the following functions: organization of a wireless network according to the "Active star" or "MESH" topology.

However, the operation of the complex is based on the radio frequency method of information transmission, which is characterized by an unguaranteed delivery time for control commands. As a result, in practice, there will be delays in turning on / off lighting devices, sometimes significant, up to a complete loss of response to control commands.

A known system for controlling electrical equipment, in particular a lighting system (see RF patent No. 2474030, IPC H02J 13/00, publ. 01/27/2013), containing a central control point, a modem connected to the central control point, at least , one executive point with a control controller, a communication module for receiving/transmitting packets, peripheral sensors, a switching unit, at least one controllable luminaire, which are connected to the lighting line. The system is configured to operate in accordance with commands pre-set for at least a whole year and stored in the memory of the control controller, as well as in accordance with the protocol according to which an information package is formed with information encoded in it, and the system is configured to process information a package received from a controlled luminaire, followed by decoding at the central control point, which contains an interactive control system that includes maps of the area where the luminaires are installed, the display of luminaires on these maps in the form of active graphic objects, graphic screens in which tabular graphs of the system operation are set and various operating modes of the system, and to increase the communication range, repeaters are installed that are connected to the same wires of the lighting line with controlled lamps, and a high-pass filter is installed in the executive unit, which is connected to the input power circuits m power supply of the execution point, tabular graphs are placed in the memory of the control controller of the execution center and in the central control point, and the control controller is configured to automatically select commands sequentially from the table chart in accordance with the execution time and execute them, and additionally introduced into the system high-pass filters for uncontrolled luminaires, which are connected to the power break of each uncontrolled luminaire, to prevent suppression of the transmission of information packets.

The operation of the system is based on the transmission of information over power wires and uses high-frequency carrier frequency modulation.

The disadvantage is the unreliability of the delivery of control commands to lighting fixtures.

The closest solution to the proposed solution is a system for addressing information transmission over AC power lines (see patent for invention RU No. 2735950, IPC H02J 13/00, publ. 11/11/2020). A system for addressing information transmission over an alternating current power supply line, including a transmitter containing a microprocessor connected to a sensor of moments of transition through zero of the main harmonic of the supply voltage, a phase meter between current and voltage, and a controlled switching device configured to interrupt the supply voltage to the power supply line, receivers placed along the power supply line, each of which includes a microcontroller connected to the sensor of the moments of transition through zero of the main harmonic of the supply voltage.

The disadvantage of the prototype is the inability to obtain information about the state of the receiver (confirmation of the execution of control commands, the state of the control object).

The technical problem is to develop a system that allows obtaining information about the state of control objects, which makes it possible to build an adaptive control system, as well as to be able to generate control scenarios aimed at achieving an economic effect (for example, in lighting by saving electricity and improving public safety).

The technical result consists in expanding the functionality of the system for addressing information transmission over the AC power supply line while improving the reliability and reliability of object management.

The claimed result is achieved by the fact that the system of addressable transmission of information over the AC power line, including a transmitter containing a microprocessor unit connected to the sensor of the moments of transition through zero of the fundamental harmonic of the supply voltage, a phase meter between current and voltage and a controlled switching device, configured to interrupt supply voltage to the power supply line, receivers located along the power line, each of which includes a microprocessor unit connected to the sensor of moments of zero crossing of the main harmonic of the supply voltage, each receiver has its own unique serial number, according to the decision, additionally contains a radio receiver and feedback elements connections of each receiver with a radio receiver, including a radio transmitter and at least one sensor for monitoring system parameters, while the output of the sensor for monitoring system parameters is connected to one of the inputs of the microprocessor about the receiver unit, the output of which is connected to the input of the radio transmitter.

Light sensor and/or current, voltage, power sensor and/or temperature sensor and/or radar detector are selected as sensors for monitoring system parameters.

The feedback elements of each receiver can be combined into nodes for collecting and transmitting information.

The invention is illustrated in the drawing, which shows a block diagram of the proposed device.

The positions in the drawing indicate:

1. Transmitter.

2. Microprocessor transmitter unit.

3. Transducer of moments of transition of the main harmonic of the supply voltage through zero.

4. Controlled power supply switching device.

5. Information receivers.

6. Microprocessor unit of the receiver.

7. Power supply line.

8. AC power supply.

9. Phase angle meter between current and voltage.

10. Radio receiver.

11. Node for collecting and transmitting information.

12. Radio transmitter.

13. System parameter sensor.

The system contains a transmitter 1 containing a microprocessor unit 2 connected to the sensor of the moments of zero crossing of the main harmonic of the supply voltage 3, the phase meter between current and voltage 9 and the controlled switching device 4, configured to interrupt the supply voltage to the power supply line 7 from the voltage source 8. Receivers 5 are placed along the power supply line, each of which includes a microprocessor unit 6 (microcontroller) connected to a sensor of moments of transition through zero of the main harmonic of the supply voltage 3. The system contains a radio receiver 10 and feedback elements of each receiver 5 with a radio receiver 10. Feedback elements The connections of each receiver contain a radio transmitter 12 and a sensor of system parameters 13, forming a node for collecting and transmitting information. In this case, the output of the sensor 13 is connected to one of the inputs of the microprocessor unit 6 of the receiver 5, the output of which is connected to the input of the radio receiver 10. The radio receiver 10 is connected by the microprocessor unit 2 of the transmitter 1. the location of the radio transmitter 12 and the sensor/sensors 13 is determined by the purpose and functionality of the system.

The function of the system parameters sensor 13 is to measure the physical quantity, the control of which is necessary in the system. The system may have one or more sensors, depending on its purpose and required functionality. Sensor 13 is a converter of physical quantity into voltage, current or digital code. It can be a light sensor (for example, OPT3001 from Texas Instruments), a temperature sensor (for example, DS18B20 from Maxim Integrated), a current sensor (for example, ACS712 from Allegro), a tilt sensor (for example, a three-axis accelerometer LIS2DH from Analog Devices), a sensor voltage, current and power (for example, built on the ADE7* electricity meter chip from Analog Devices), as well as any others. Radar detectors that measure the speed of pedestrians and cars, as well as traffic (the number of pedestrians/vehicles per unit of time) in the controlled area can be used as sensors for the controlled parameters of the system.

The system works as follows.

Each receiver 5 has a unique number in the system, which allows you to manage each object of the system individually.

The microprocessor unit 2 of the transmitter 1 generates and sends a command to control a specific object. The receiver control method is described in patent RU2735950. The receiver 5 receives and executes the control command, and also confirms its execution by sending confirmation through the radio transmitter 12 to the radio receiver 10, and adds information about the readings of the sensor/sensors 13 to the response message. The radio receiver 10 transmits to the microprocessor unit 2 of the transmitter 1 information about the execution of the command by the receiver 5, as well as information from the sensor/sensors 13 of the control object on which the receiver 5 is installed. If, after a set time, the microprocessor unit of the transmitter 2 does not receive confirmation of the execution of the sent command, then it resends the control command, thereby increasing the reliability of control.

After receiving confirmation of the execution of the command, as well as information about the readings of the sensor/sensors 13, the microprocessor unit 2 of the transmitter 1, according to a given (adaptive) algorithm, can send the next control command to the receiver 5, if the readings of the sensor/sensors 13 indicate the need to correct the state of the control object. The microprocessor units 6 of the receivers 5 at a predetermined interval read the readings of the sensors 13 and send them through the radio transmitters 12 and the radio receiver 10 to the microprocessor unit 2 of the transmitter 1, which analyzes the state of all control objects of the system and, if necessary, corrects their state by sending the appropriate control commands, realizing the adaptive function of the system.

The following lighting control options are available, for example:

- if the light sensor is selected as the sensor 13, then when the illumination is higher or lower than required at a given time of day, the system has the ability to change the level of illumination created by the lighting fixture by sending a command to change the level of illumination generated by the receiver 5 installed in the lighting fixture (for example, changing supply current of the LED lamp). According to the readings of the light sensor, the health of the lighting device is also monitored;

- if the current, voltage, power sensor is selected as the sensor 13, then the microprocessor unit 2 of the transmitter 1 monitors these readings and analyzes the health of the lighting device;

- if the tilt sensor is selected as the sensor 13, then the microprocessor unit 2 of the transmitter 1 is able to detect the deviation of a particular lighting device in space (roll of the lighting pole, failure of the lighting fixture). A change in the orientation of the lighting device in space causes a change in illumination (for example, of a road), and if the deviations in the orientation of the lighting device are higher than the permissible limits, then the microprocessor unit of the transmitter 1 is able to generate information about the emergency state of a particular object in order to quickly eliminate the accident of the object for the purposes of public safety;

- if the temperature sensor is selected as the sensor 13, then the microprocessor unit 2 of the transmitter 1, at a temperature above the allowable one, is able to generate a command to change the power of the lighting device in order to ensure an acceptable operating temperature of the lighting device;

- if a radar detector is selected as sensor 13, which measures the speed of movement of pedestrians and / or cars, then the function of automatic “object tracking” by light can be implemented when, in the absence of movement, the illumination level decreases to the minimum, duty level, and when an object appears and information about the speed of its movement, on its trajectory, in the required sequence, an increase to the standard level of illumination is provided, when the system has the ability to change the level of illumination created by lighting fixtures by sending a command to change the level of illumination created by the receiver 5 installed in the lighting fixture (for example, changing the supply current LED lamp);

- if a radar detector or a traffic sensor is selected as sensor 13, which measures traffic (the number of pedestrians/vehicles per unit of time) in the controlled area, then, depending on the category and class of the road, adaptive algorithms for reducing/increasing the illumination level within the normatively specified limits are implemented , while the system has the ability to change the level of illumination generated by the lighting fixture by sending the receiver 5 installed in the lighting fixture a command to change the level of illumination generated (for example, changing the power supply current of the LED lamp).

Other scenarios of the adaptive response of the system are possible depending on the type of sensors used 13.

The microprocessor unit 5 of the transmitter 1 may have (not considered in the scope of this application) the function of exchanging information with higher-level control systems (for example, Smart City, BigData, DataLake), transferring information to them from many different sensors 13, and receiving the results of intelligent processing a set of data, including from other Smart City systems, for more precise control of the receivers 5 (for example, predictive control under certain weather conditions and emergency situations).

The inventive system is capable of reliably transmitting control commands to lighting fixtures via power wires, since it does not use a radio signal or a modulated high-frequency carrier frequency for transmission and allows receiving information from a control object, since a radio signal is additionally used to transmit information from control objects. The system provides reliable transmission of control commands and has the ability to obtain information from control objects about their state in order to implement adaptive control algorithms. The reliability and reliability of the transmission of control commands is increased by confirming their execution by the receiver and, in case of failure or incorrect execution of the control command, by resending the command by the microprocessor unit of the transmitter. The proposed solution expands the functionality of the system, because on the basis of information from the sensors of controlled parameters, it becomes possible to implement an adaptive algorithm for controlling objects of control - lighting fixtures in a particular case.

Claims (3)

1. A system for addressing information transmission over an alternating current power line, including a transmitter containing a microprocessor unit connected to a sensor of the moments of transition through zero of the main harmonic of the supply voltage, a phase meter between current and voltage, and a controlled switching device configured to interrupt the supply voltage to power supply line, receivers located along the power line, each of which includes a microprocessor unit connected to the zero-crossing torque sensor of the main harmonic of the supply voltage, each receiver has its own unique serial number, characterized in that the system of address information transmission additionally contains a radio receiver and feedback elements of each receiver with a radio receiver, including a radio transmitter and at least one sensor for monitoring system parameters, while the output of the sensor for monitoring system parameters is connected to one of the inputs of the microprocessor unit of the receiver, the output of which is connected to the input of the radio transmitter. 2. The system according to claim 1, characterized in that the light sensor and/or current, voltage, power sensor and/or temperature sensor and/or radar detector are selected as sensors for monitoring system parameters. 3. The system according to claim 1, characterized in that the feedback elements of each receiver are combined into nodes for collecting and transmitting information.

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