CN210225855U - Intelligent streetlamp measurement and control device based on NB-IoT technology - Google Patents
Intelligent streetlamp measurement and control device based on NB-IoT technology Download PDFInfo
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- CN210225855U CN210225855U CN201920652961.9U CN201920652961U CN210225855U CN 210225855 U CN210225855 U CN 210225855U CN 201920652961 U CN201920652961 U CN 201920652961U CN 210225855 U CN210225855 U CN 210225855U
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Abstract
The utility model provides a street lamp intelligence measurement and control device based on NB-IoT technique, including MCU circuit and respectively with MCU circuit connection's electrical parameter measurement circuit, NB-IoT communication circuit, dimmer circuit and on-off control circuit, electrical parameter measurement circuit confirms the electrical parameter data and the electric energy data of street lamp load and conveys it to the MCU circuit; the MCU circuit actively uploads electric parameter data and/or electric energy data to the remote control center according to a preset time interval, receives a control instruction from the remote control center, sends a switching signal and/or a dimming signal according to the control instruction, and the switching control circuit controls the on-off of the street lamp load according to the switching signal; the dimming circuit adjusts the light intensity of the street lamp load according to the dimming signal. Based on the utility model provides a but the running state of real time monitoring street lamp of scheme to carry out energy consumption analysis, reach the purpose of the power consumption that becomes more meticulous. And various switch dimming strategies are realized, the lighting electric energy loss is effectively reduced, and the purposes of energy conservation and emission reduction are achieved.
Description
Technical Field
The utility model relates to a observe and control the field, especially relate to a street lamp intelligence measurement and control device based on NB-IoT technique.
Background
With the expansion of urban lighting systems, the traditional extensive road lighting management drawbacks are gradually shown. The state monitoring and fault location of the lighting equipment cannot be timely and accurately carried out only by human function inspection and a timing switch, and early fault pre-judgment and electric energy loss reduction cannot be further carried out.
With the application of the internet of things technology in the field of road lighting monitoring, the general internet of things technology, including technologies such as GPRS, zigbee and power line carrier, has the disadvantages of expensive cost, small carrying load of base stations, complex networking, unstable network, unstable transmission, short distance and the like, and can not meet the requirement of smart city fine management. Emerging internet of things technologies such as loRa and SigFox are difficult to erect, a gateway is needed to enter the internet, and the problem that frequency bands are unauthorized is not suitable for application in the field of lighting.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is proposed to provide an intelligent measurement and control device for street lamp based on NB-IoT technology, which overcomes the above problems.
According to one aspect of the present invention, there is provided an intelligent measurement and control device for street lamp based on NB-IoT technology, wherein the intelligent measurement and control device for street lamp comprises an MCU circuit, and an electrical parameter measuring circuit, an NB-IoT communication circuit, a dimming circuit and a switch control circuit respectively connected to the MCU circuit, wherein,
the output end of the electrical parameter measuring circuit is connected to the MCU circuit, and the electrical parameter measuring circuit is configured to determine electrical parameter data and electrical energy data of the street lamp load and transmit the electrical parameter data and the electrical energy data to the MCU circuit;
the MCU circuit is in signal connection with a remote control center through the NB-IoT communication circuit, actively uploads the electrical parameter data and/or the electrical energy data to the remote control center according to a preset time interval, and receives a control instruction from the remote control center; the MCU circuit sends out a switching signal and/or a dimming signal according to the control instruction;
the input end of the switch control circuit is connected to the MCU circuit and is configured to control the on-off of the street lamp load according to a switch signal sent by the MCU circuit;
and the input end of the dimming circuit is connected to the MCU circuit and is configured to adjust the light intensity of the street lamp load according to the dimming signal sent by the MCU circuit.
Optionally, the intelligent measuring and controlling device for street lamps further comprises a voltage sampling circuit and/or a current sampling circuit, wherein,
the input end of the voltage sampling circuit is connected with a power supply circuit, the output end of the voltage sampling circuit is connected with the electrical parameter measuring circuit, and the voltage sampling circuit is configured to acquire a mains supply voltage signal of the power supply circuit, convert the mains supply voltage signal into a first small signal and transmit the first small signal to the electrical parameter measuring circuit;
the input end of the current sampling circuit is connected with the power supply circuit, the output end of the current sampling circuit is connected with the electrical parameter measuring circuit, and the current sampling circuit is configured to acquire a load current signal of the power supply circuit, convert the load current signal into a second small signal and transmit the second small signal to the electrical parameter measuring circuit; and is
The electric parameter measuring circuit is further configured to determine electric parameter data and electric energy data of the street lamp load according to the first small signal and/or the second small signal.
Optionally, the MCU circuit is further configured to determine that the electrical parameter data of the street lamp load exceeds a preset alarm threshold, and send an alarm signal to the remote control center via the NB-IoT communication circuit.
Optionally, the MCU circuit is further configured to send a switching signal to the switching control circuit according to a predetermined time period and/or send a dimming signal to the dimming circuit based on a time-controlled switching dimming strategy;
wherein the time-controlled switching dimming strategy comprises at least one of:
a date mode, which is set as a strategy for controlling the on-off dimming in a time period of year, month and day cycle;
a weekly mode, which is set as a strategy for controlling the on-off dimming in the time period of a weekly cycle; and
and an astronomical mode set as a strategy for controlling on-off dimming in a sunrise and sunset time period determined based on longitude and latitude.
Optionally, the intelligent street lamp measurement and control device further comprises a light sensing circuit, an output end of which is connected to the MCU circuit and is configured to collect an external illumination intensity signal and transmit the illumination intensity signal to the MCU circuit;
the MCU circuit is further configured to send a switching signal to the switch control circuit and/or send a dimming signal to the dimming circuit according to a preset time period and the current illumination intensity signal based on a light-controlled time-controlled combined switch dimming strategy.
Optionally, the intelligent street lamp measurement and control device further comprises a wifi communication circuit connected with the MCU circuit, wherein the MCU circuit is in signal connection with an external mobile device via the wifi communication circuit and receives a debugging command and/or a control command from the external mobile device; and is
The MCU circuit is also configured to debug the intelligent street lamp measurement and control device according to the debugging command; and/or
The MCU circuit is further configured to send a switching signal to the switch control circuit and/or send a dimming signal to the dimming circuit according to the control command received in real time based on a real-time switching dimming strategy.
Optionally, the intelligent street lamp measurement and control device further comprises a GPS positioning circuit, an output end of which is connected to the MCU circuit and configured to transmit the current position information of the intelligent street lamp measurement and control device to the MCU circuit;
the MCU circuit is further configured to read the location information and upload the location information to the remote control center via the NB-IoT communications circuit.
Optionally, the intelligent street lamp measurement and control device further comprises a data storage circuit, an input end of the data storage circuit is connected to the MCU circuit, and the data storage circuit is configured to store configuration information and an operation log of the intelligent street lamp measurement and control device, and further configured to store the configuration information and the operation log of the intelligent street lamp measurement and control device
The MCU circuit is also configured to control the data storage circuit to perform storage, reading and erasing operations.
Optionally, the intelligent measurement and control device for street lamps further includes an SPD detection circuit configured to detect a status indication signal of an SPD integrated inside the street lamps, and provide the signal to the MCU circuit.
Optionally, the intelligent measurement and control device for street lamps further comprises a switching power supply circuit, an input end of the switching power supply circuit is connected with the mains supply, and the switching power supply circuit is configured to convert the input mains supply into constant low-voltage direct current, and therefore the intelligent measurement and control device for street lamps is powered by direct current.
Optionally, the dimming circuit is further configured to control the driving power supply of the street lamp load by adopting a PWM dimming mode and/or a 0-10V dimming mode according to the dimming signal sent by the MCU circuit.
Optionally, the intelligent road lamp measurement and control device comprises an upper cover, a base, a power sampling device and a control device, wherein
The upper cover and the base are shell parts of the intelligent street lamp measurement and control device, and the upper cover and the base are assembled to form an internal space of the intelligent street lamp measurement and control device;
the power supply sampling device and the control device are arranged in the inner space, and
the voltage sampling circuit, the current sampling circuit and the switch control circuit are arranged on the power supply sampling device, the MCU circuit, the electrical parameter measuring circuit, the NB-IoT communication circuit and the dimming circuit are arranged on the control device, and the power supply sampling device is electrically connected with the control device.
Optionally, the power sampling device and the control device are respectively provided with an electrical connector and are electrically connected through plugging.
Optionally, a dimming interface is arranged on the base and used for connecting a driving power supply of the street lamp load, and the dimming interface is connected with the dimming circuit on the control device through a wire.
Optionally, the base, the power supply sampling device and the control device are arranged in the inner space from bottom to top, and Mylar films are arranged between every two base, the power supply sampling device and the control device to realize safety regulation isolation.
The embodiment of the utility model provides a street lamp intelligence measurement and control device based on NB-IoT technique, street lamp intelligence measurement and control device include the MCU circuit and respectively with MCU circuit connection's electrical parameter measurement circuit, NB-IoT communication circuit, dimmer circuit and on-off control circuit in this embodiment. Wherein the output end of the electric parameter measuring circuit is connected with the MCU circuit and is used for determining the electric parameter data and the electric energy data of the street lamp load, and transmits the electrical parameter data and the electrical energy data to the MCU circuit, the MCU circuit is in signal connection with the remote control center through the NB-IoT communication circuit, and actively uploading electric parameter data and/or electric energy data to a remote control center according to a preset time interval, and receives a control command from a remote control center, then the MCU circuit sends out a switching signal and/or a dimming signal according to the received control command, the input end of the switch control circuit is connected to the MCU circuit and is configured to control the on-off of the street lamp load according to a switch signal sent by the MCU circuit, and the input end of the dimming circuit is connected to the MCU circuit and is configured to adjust the light intensity of the street lamp load according to a dimming signal sent by the MCU circuit. The embodiment of the utility model provides a scheme acquires the electric parameter data and the electric energy data of street lamp load through electric parameter measurement circuit and MCU circuit, passes to the remote control center on the street lamp load data that will acquire through NB-IoT communication circuit again to the realization is to the real time monitoring of street lamp load. And the remote control center can also send a control command to the MCU in the MCU circuit, so that the MCU circuit can carry out lamp switching and/or dimming control on the street lamp load according to the instruction of the remote control center. Based on the embodiment of the utility model provides a scheme can real time monitoring street lamp load's electrical parameter data and electric energy data, acquires the real-time data of street lamp load and uploads to remote control center, and remote control center can master the running state of each street lamp in real time and carry out energy consumption analysis, reaches the purpose of the power consumption that becomes more meticulous. Further, the embodiment of the utility model provides a technical scheme can realize multiple switch lamp and the tactics of adjusting luminance when carrying out the control of street lamp load, through setting up different switch lamps and the tactics of adjusting luminance, can effectual reduction illumination electric energy loss, reduces the charges of electricity expenditure, reaches energy saving and emission reduction's purpose.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic diagram of data interaction of an intelligent measurement and control device for a street lamp according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a street lamp intelligent measurement and control device based on NB-IoT technology according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a street lamp intelligent measurement and control device based on NB-IoT technology according to a preferred embodiment of the present invention;
fig. 4 is a schematic diagram of data interaction of the intelligent road lamp measurement and control device according to a preferred embodiment of the present invention;
fig. 5 is a schematic view of a cross-sectional structure of an intelligent measurement and control device for a street lamp according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It should be noted that the features of the embodiments and preferred embodiments of the present invention can be combined without conflict.
The NB-IoT is constructed in a cellular network, only consumes about 180KHz of bandwidth, is an important branch of 5G communication in the application field of the Internet of things, has the characteristics of large connection, wide coverage, low power consumption and low cost, and can better meet the requirements of high density, wide distribution and high cost requirement of a street lamp control area.
Fig. 1 is a schematic diagram of street lamp intelligence measurement and control device data interaction according to an embodiment of the present invention, and fig. 2 is a schematic diagram of street lamp intelligence measurement and control device 100 based on NB-IoT technology according to an embodiment of the present invention. As shown in fig. 1 and fig. 2, the intelligent streetlamp control and monitoring device 100 at least includes an MCU circuit 101, and an electrical parameter measuring circuit 102, an NB-IoT communication circuit 103, a dimming circuit 104 and a switch control circuit 105 respectively connected to the MCU circuit 101, wherein an output terminal of the electrical parameter measuring circuit 102 is connected to the MCU circuit 101, and is configured to determine electrical parameter data and electrical energy data of a streetlamp load and transmit the electrical parameter data and the electrical energy data to the MCU circuit 101, the MCU circuit 101 is in signal connection with the remote control center 200 via the NB-IoT communication circuit 103 and actively uploads the electrical parameter data and/or the electrical energy data to the remote control center 200 according to a preset time interval, the MCU circuit 101 can also receive a control command from the remote control center 200 via the NB-IoT communication circuit 103 and transmit a switch signal and/or a dimming signal according to the received control command, the input end of the switch lamp control circuit 105 is connected to the MCU circuit 101 and configured to control the on-off of the street lamp load according to a switch signal sent by the MCU circuit 101, and the input end of the dimming circuit 104 is connected to the MCU circuit 101 and configured to adjust the light intensity of the street lamp load according to a dimming signal sent by the MCU circuit 101.
The electrical parameters of the street lamp load include, but are not limited to, voltage, current, power and power factor of a street lamp load line, and the power factor is integrated to obtain the electric energy data of the street lamp load. The electrical parameter measuring circuit 102 is internally provided with an AD conversion module and a calculation module (not shown in the figure), wherein the calculation module is configured to determine electrical parameters such as voltage, current, power factor and the like of an actually applied street lamp load, perform integral operation on the power electrical parameters, and determine electrical energy data of the street lamp load, and the AD conversion module is configured to convert the electrical parameters of the street lamp load and an electrical energy analog signal into a digital signal.
It should be noted that, the street lamp load in the above embodiments may also be other lighting device loads, such as a track lamp, a stage lamp, etc., and the solution provided by the embodiments of the present invention may be used for any controller or power supply adopting NB-IoT communication mode.
Corresponding to the NB-IoT communication circuit 103, an NB-IoT communication module and an NB-IoT dedicated SIM card chip (not shown in the figure) are built in the NB-IoT communication circuit, wherein the NB-IoT communication module can be connected to a nearby mobile base station, and further connected to a remote control center, so as to realize data interaction between the MCU circuit 101 and the remote control center (receive real-time data uploaded by the MCU circuit 101 and send control commands).
Optionally, dimming circuit 104 includes devices such as analog switch, triode, mos pipe, and its inside at least one mode of adjusting luminance that has integrateed the utility model discloses in a preferred embodiment, dimming circuit 104 still disposes and is used for the dimming signal who sends according to MCU circuit 101, adopts PWM mode of adjusting luminance and/or 0 ~ 10V mode of adjusting luminance to control the drive power supply of street lamp load. The present preferred embodiment can control the driving power supply having the above-described dimming manner, thereby realizing dimming control. For example, the LED light source is used as the street lamp load, the dimming modes are PWM dimming and 0-10V dimming, the scheme of the preferred embodiment can be used to perform dimming control on the LED light source having one of the two dimming modes, and the specific dimming mode can be set and selected through the I/O interface of the MCU circuit 101.
Optionally, the switch lamp control circuit 105 includes a relay, and the switch lamp control circuit 105 may perform on-off control on the live wire at the input end of the external driving power supply through the relay, so as to achieve the purpose of switching on and off the lamp.
After the intelligent streetlamp measurement and control device based on the NB-IoT technology is adopted, the abnormal operation state or fault of one or more streetlamps may occur, but the working personnel cannot find the abnormal operation state or fault of the streetlamps in time, cannot carry out early fault prejudgment, and is not convenient for streetlamp maintenance and fault rush repair. In view of this situation, in a preferred embodiment of the present invention, the MCU circuit 101 is further configured to determine that the electrical parameter data of the street lamp load exceeds a preset alarm threshold, and send an alarm signal to the remote control center via the NB-IoT communication circuit 103. The scheme provided in the preferred embodiment can compare and judge the electrical parameter data of the street lamp load with the preset alarm threshold value, and when the electrical parameter data of the street lamp load exceeds the preset alarm threshold value, an alarm signal can be sent to the remote control center through the NB-IoT communication circuit, so that the early failure prejudgment and the failure discovery can be conveniently carried out. The scheme provided based on the preferred embodiment can not only carry out early prejudgment on the street lamp fault, but also can inform relevant working personnel in time when the street lamp is abnormal or has a fault, thereby carrying out data recovery or fault maintenance in time and further improving the maintenance efficiency.
Fig. 3 is a street lamp intelligent measurement and control device based on NB-IoT technology according to a preferred embodiment of the present invention, as shown in fig. 3, the street lamp intelligent measurement and control device 100 may further include a voltage sampling circuit 106 and/or a current sampling circuit 107, which may sample a load power supply line and provide a signal to be measured for the electrical parameter measuring circuit 102.
The voltage sampling circuit 106 has an input end connected to the load power supply line and an output end connected to the electrical parameter measurement circuit 102, and is configured to obtain a commercial power voltage signal of the load power supply line, convert the commercial power voltage signal into a first small signal, and transmit the first small signal to the electrical parameter measurement circuit 102.
The input end of the current sampling circuit 107 is connected to the load power supply line, and the output end thereof is connected to the electrical parameter measurement circuit 102, and the current sampling circuit is configured to obtain a current signal of the load power supply line of the power supply line, convert the current signal into a second small signal, and transmit the second small signal to the electrical parameter measurement circuit 102.
The electrical parameter measurement circuit 102 may be further configured to determine electrical parameter data and electrical energy data of the street lamp load from the first small signal and/or the second small signal.
The voltage sampling circuit 106 mainly has a function of sampling the voltage of a load power supply line, and for different circuit parameters, the voltage sampling circuit 106 can be directly connected to the power supply line by adding a resistor externally or internally, so that the conversion from a mains supply voltage signal to a first small signal is performed. For example, the voltage sampling circuit is provided with a built-in resistor, and the voltage sampling circuit can divide the voltage of the external commercial power 220V by the built-in resistor, so as to convert the voltage into a small voltage signal of 50mV, and further transmit the small voltage signal to the electrical parameter measuring circuit, and perform subsequent processing by the small voltage signal.
The current sampling circuit 107 has a main function of sampling the current of the load power supply line, so as to obtain a current sampling signal, and the current sampling circuit 107 can be externally or internally provided with a current transformer and a sampling resistor according to different circuits, so that the load current signal is converted into a second small signal. For example, a current transformer and a sampling resistor are arranged in the current sampling circuit, the current sampling circuit can convert a 0-5A current sampling signal into a 0-50 mV small voltage sampling signal through the internal 5A/5mA current transformer and the sampling resistor, and then the small voltage signal is transmitted to the electrical parameter measuring circuit and is subjected to subsequent processing by the electrical parameter measuring circuit.
It should be noted that the above-mentioned examples are only for better illustration of the technical solution of the present invention, and the present invention is not limited thereto.
Referring to fig. 2, in a preferred embodiment of the present invention, the MCU circuit 101 may be further configured to send a switching signal to the switching control circuit and/or a dimming signal to the dimming circuit according to a predetermined time period based on the time-controlled dimming strategy. The preferred embodiment performs the light on/off and/or dimming control according to a predetermined time period, so as to implement a time-controlled switching dimming strategy.
In this embodiment, the time-controlled switching dimming strategy comprises at least one of: a date mode, which is set as a strategy for controlling the on-off dimming in a time period of year, month and day cycle; a weekly mode, which is set as a strategy for controlling the on-off dimming in the time period of a weekly cycle; and an astronomical mode set as a strategy for controlling on-off dimming in a sunrise and sunset time period determined based on longitude and latitude.
For example, the on/off dimming strategy is controlled by setting from xxxx × nxiexxymbolday to xxxx × nxiexxymbolday for one time period, that is, by setting a year, month and day for one date period, thereby implementing the on/off dimming strategy for the date mode. For another example, the on-off dimming strategy is controlled by setting a time period from sunday to next monday, that is, the on-off dimming strategy is executed by setting a cycle of the week, so that the on-off dimming strategy of the week mode is implemented. For another example, a strategy of controlling on-off dimming is determined by combining longitude and latitude information of a local area to determine a sunrise and sunset time period, so that an astronomical-mode on-off dimming strategy is realized, and on-off and dimming of the street lamp are automatically controlled according to sunrise time and/or sunset time, for example, the load of the street lamp is controlled to be turned off from sunrise time to sunset time (daytime), and the load of the street lamp is controlled to be turned on in other time periods. By setting different time intervals and dimming, the illumination electric energy loss can be effectively reduced, the electric charge expenditure is reduced, and the purposes of energy conservation and emission reduction are achieved.
Optionally, the switching dimming strategy further comprises a real-time switching dimming strategy and a light-controlled time-controlled combined switching dimming strategy. The light-control and time-control combined switch dimming strategy has the characteristics of automatically identifying the illumination state and judging whether to execute switch dimming through the photosensitive circuit besides the characteristics of the time-control switch dimming strategy. The real-time switch dimming strategy can carry out real-time control switch dimming on the device through the NB-IoT communication circuit or the wifi antenna circuit. It should be noted that the switching dimming strategy can be adjusted at any time according to different requirements and application scenarios.
Generally, the illumination required by dark and bright states is different, and even in the same bright or dark state, the illumination required by sunny and cloudy days, with and without moonlight may be different. If the sunrise time determined according to the longitude and latitude of the current position is 6:00 and the sunset time is 17:00, a time control switch dimming strategy in an astronomical mode is adopted, and the street lamp is turned off within a time period of 6: 00-17: 00, the street lamp is always turned off within the time period of 6: 00-17: 00 under the switch dimming strategy, but in practical application, the illumination intensity of a certain time period within the time period of 6: 00-17: 00 is reduced compared with that of normal weather due to weather influences such as cloudy days or rain, the lamp needs to be turned on in time to provide a better illumination environment, and for the situation, the illumination requirement cannot be well met only by adopting the time control switch dimming strategy. The utility model discloses in the preferred embodiment, as shown in fig. 3, street lamp intelligence measurement and control device 100 can also include light sense circuit 108, its output is connected to MCU circuit 101, configure to gather outside illumination intensity signal, and with illumination intensity signal transfer to MCU circuit 101, and then MCU circuit 101 can also configure to jointly switch the light-adjusting strategy based on light-operated time control, combine current illumination intensity signal according to predetermined time quantum, send switching signal to the on-off control circuit, and/or send dimming signal to dimming circuit. This preferred embodiment can combine time control switch light modulation strategy and current outside actual illumination intensity to carry out switch lamp and/or dimming control, realizes light-operated time control and unites switch light modulation strategy for street lamp control is more intelligent. And the street lamp control is carried out by combining the current actual illumination intensity, so that the illumination electric energy loss can be further reduced.
The light sensing circuit 108 mainly functions to collect the external illumination intensity signal, and optionally, the light sensing circuit 108 includes a phototransistor (not shown in the figure), so as to collect the external illumination intensity signal through the phototransistor. The MCU circuit 101 in the above embodiment may further include an AD converter (not shown) therein for converting the collected external illumination intensity value signal into a digital signal, and the MCU circuit 101 performs a corresponding calibration operation according to the converted illumination intensity value signal to obtain an external actual illumination intensity value, and then compares the external actual illumination intensity value with a preset dark-day illumination threshold and a preset bright-day illumination threshold to determine the current dark-day and bright-day states, so as to control the on/off and/or dimming of the street lamp load according to the determined dark-day or bright-day states.
When the dark and bright state is performed, embodiments of the present invention provide various optional embodiments, in an optional embodiment of the present invention, if the external actual illumination intensity value is not greater than the preset dark illumination threshold value, it is determined that the current state is dark; and if the external actual illumination intensity value is not less than the preset day illumination threshold value, judging that the current day illumination state is the day illumination state. The embodiment of the utility model provides a can confirm that present day is dark or bright state so that relevant circuit module can combine current actual illumination intensity to carry out switch and/or dimming control.
The condition of judging the state of dark and bright can be reasonably set according to the real condition, the utility model discloses do not limit to this.
Fig. 4 is a schematic diagram of data interaction of the intelligent road lamp measurement and control device according to the present invention, in a preferred embodiment of the present invention, referring to fig. 3 and fig. 4, the intelligent road lamp measurement and control device 100 can further include a wifi communication circuit 109 connected to the MCU circuit 101. The MCU circuit 101 is in signal connection with the external mobile device 300 through the wifi communication circuit 109, and receives a debugging command and/or a control command from the external mobile device 300, so that the MCU circuit 101 can debug the intelligent road lamp measurement and control device 100 according to the debugging command; and/or the MCU circuit 101 sends a switching signal to the switching control circuit 105 and/or sends a dimming signal to the dimming circuit 104 according to a control command received in real time based on a real-time switching dimming strategy, thereby implementing the switching of the lamp and dimming control.
In the preferred embodiment, the MCU circuit 101 further includes a wifi driver circuit and a wifi protocol stack (not shown), so that the MCU circuit 101 can be connected to an external device via the wifi communication circuit 109. In this embodiment, the wifi communication circuit 109 can be used for local data reading, configuration maintenance, group operation, and also can be used for switching on and off and dimming control under special conditions. The scheme provided by the embodiment can support the mobile equipment to carry out local equipment debugging, running state query and group control, and is convenient for field construction and management.
The mobile device can be mobile communication devices such as mobile phones and PADs, and the utility model discloses do not limit to this.
In the utility model discloses an in preferred embodiment, as shown in fig. 3, street lamp intelligence measurement and control device 100 can also include GPS positioning circuit 110, and its output is connected to MCU circuit 101, configures to transmit current street lamp intelligence measurement and control device 100's positional information to MCU circuit 101, and MCU circuit 101 can also configure to read positional information to upload positional information to the remote control center via NB-IoT communication circuit 103.
The GPS positioning circuit 110 mainly has a function of positioning a street lamp, and a GPS receiving module (not shown in the figure) may be arranged inside the GPS positioning circuit 110, so that the GPS positioning circuit 110 may obtain positioning information of a satellite through the GPS receiving module to obtain actual longitude and latitude information of the current GPS receiving module, where the longitude and latitude information is time position information of the street lamp, and transmit the time position information to the MCU circuit 101, and upload the position information to a remote control center through the NB-IoT communication circuit 103.
The scheme based on the preferred embodiment can facilitate the operation units to carry out asset management, and carry out accurate and quick positioning on faults, thereby realizing quick first-aid repair.
The utility model discloses an in a preferred embodiment, as shown in fig. 3, street lamp intelligence measurement and control device 100 can also include data storage circuit 111, and its input is connected to MCU circuit 101, configures to configuration information and the running log of saving street lamp intelligence measurement and control device 100, and then MCU circuit 101 still configures to control data storage circuit 111 and stores, reads and erase the operation.
The data storage circuit 111 contains a large capacity FLASH memory that stores various configuration parameters, calibration parameters, control strategies, and operation log information.
In a preferred embodiment of the present invention, as shown in fig. 3, the intelligent road lamp measurement and control device 100 further includes an SPD detection circuit 112 configured to detect the status indication signal of the SPD integrated inside the road lamp, and provide the signal to the MCU circuit 101.
Optionally, the SPD detection circuit 112 is an optical coupling isolation switching value detection circuit, and detects a failure indication port signal of an SPD in the lamp, and sends an alarm command to the host computer through an active upload command when the SPD fails, so as to remind relevant personnel to replace the SPD.
The utility model discloses an in a preferred embodiment, as shown in fig. 3, street lamp intelligence measurement and control device 100 can also include switching power supply circuit 113, and its input and mains connection configure into the commercial power conversion of inputing for invariable low voltage direct current, for street lamp intelligence measurement and control device 100 direct current supply. The low-voltage dc voltage output by the switching power supply circuit 113 is mainly used for supplying power to other internal modules. The connection relationship between the switching power supply circuit 113 and other circuit blocks is not shown in fig. 3.
Fig. 5 is a schematic view of a cross-sectional structure of an intelligent measurement and control device for a street lamp according to an embodiment of the present invention. As shown in fig. 5, the intelligent streetlamp measurement and control device 100 includes an upper cover 1, a base 2, a power sampling device 7 and a control device 9, wherein the upper cover 1 and the base 2 are housing parts of the intelligent streetlamp measurement and control device 100, the two are assembled to form an internal space of the intelligent streetlamp measurement and control device 100, and then the power sampling device 7 and the control device 9 are disposed in the internal space, and a voltage sampling circuit 106, a current sampling circuit 107 and a switch control circuit are disposed on the power sampling device 7, an MCU circuit 101, an electrical parameter measuring circuit 102, an NB-IoT communication circuit 103 and a dimming circuit 104 are disposed on the control device 9, and the power sampling device 7 is electrically connected with the control device 9.
In an optional embodiment of the present invention, the power sampling device 7 and the control device 9 respectively have an electrical connector and are electrically connected by plugging. Preferably, the power sampling device 7 is connected with the control device 9 through a pin header.
Alternatively, the cover 1 and the base 2 are connected by a snap, wherein the snap is provided on the cover 1 and/or the base 2.
Optionally, the power sampling device 7 is further provided with a functional module circuit such as the light sensing circuit 108 and/or the switching power supply circuit 113.
Optionally, the control device 9 is further provided with functional module circuits such as a wifi antenna circuit 109, a GPS positioning circuit 110, a data storage circuit 111, and/or an SPD detection circuit 112.
In a preferred embodiment of the present invention, as shown in fig. 5, a dimming interface 3 is disposed on the base 2, which can be used for connecting a driving power supply of a street lamp load, and the dimming interface 3 is connected to the dimming circuit 104 on the control device 9 through a wire. In the preferred embodiment, the dimming interface 3 is used as a dimming output physical interface of the intelligent streetlamp control and monitoring device 100. Based on the preferred embodiment, the dimming circuit on the control device can output the dimming signal to the external street lamp load through the dimming interface, so that dimming control of the external street lamp load is realized.
When the control device 9 is provided with the SPD detection circuit 112, the base 2 is further provided with the SPD detection interface 5, which can be used for connecting a street lamp load, and the SPD detection interface 5 is connected with the SPD detection circuit 112 on the control device 9 through a wire. In the preferred embodiment, the SPD detection interface 5 is used as an SPD status input physical interface of the intelligent streetlamp measurement and control device 100. Based on the preferred embodiment, the failure indication port signal of the SPD in the street lamp load can be detected, and when the SPD fails, an alarm command is sent to the upper computer through the active uploading command to remind related personnel to replace the SPD, so that the safety is ensured.
Referring to fig. 5, a plurality of copper pins 4 are further disposed on the base 2, and optionally, the plurality of copper pins 4 include 3 copper pins, 2 copper pins among the 3 copper pins are respectively connected with the live wire, so as to implement live wire input and live wire output, while the other 1 copper pin is connected with the neutral wire, and the plurality of copper pins 4 are in a strip shape and extend from the base 2 to the power sampling device 7. In this embodiment, 2 copper pins connected to the live wire are used as the power supply interface and the on/off light control interface, respectively.
In a preferred embodiment of the present invention, as shown in fig. 5, the base 2, the power sampling device 7 and the control device 9 are disposed from bottom to top in the inner space, and mylar sheets (6 and 8 shown in fig. 5) are disposed between two each other to realize safety isolation.
The embodiment of the utility model provides a technical scheme can realize the real time monitoring to the street lamp load to the warning of crossing the line, fault record uploads. The remote control center can control the running state of each street lamp in real time, and can analyze the energy consumption, thereby achieving the purpose of refined power consumption. When the load of the street lamp is controlled, various switch dimming strategies can be realized, and by setting different switch dimming strategies, the illumination electric energy loss can be effectively reduced, the electric charge expenditure can be reduced, and the purposes of energy conservation and emission reduction can be achieved.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (15)
1. An intelligent streetlamp measurement and control device based on NB-IoT technology is characterized by comprising an MCU circuit, and an electrical parameter measurement circuit, an NB-IoT communication circuit, a dimming circuit and a switch control circuit which are respectively connected with the MCU circuit, wherein,
the output end of the electrical parameter measuring circuit is connected to the MCU circuit, and the electrical parameter measuring circuit is configured to determine electrical parameter data and electrical energy data of the street lamp load and transmit the electrical parameter data and the electrical energy data to the MCU circuit;
the MCU circuit is in signal connection with a remote control center through the NB-IoT communication circuit, actively uploads the electrical parameter data and/or the electrical energy data to the remote control center according to a preset time interval, and receives a control instruction from the remote control center; the MCU circuit sends out a switching signal and/or a dimming signal according to the control instruction;
the input end of the switch control circuit is connected to the MCU circuit and is configured to control the on-off of the street lamp load according to a switch signal sent by the MCU circuit;
and the input end of the dimming circuit is connected to the MCU circuit and is configured to adjust the light intensity of the street lamp load according to the dimming signal sent by the MCU circuit.
2. The intelligent measurement and control device for street lamps according to claim 1, further comprising a voltage sampling circuit and/or a current sampling circuit, wherein,
the input end of the voltage sampling circuit is connected with a power supply circuit, the output end of the voltage sampling circuit is connected with the electrical parameter measuring circuit, and the voltage sampling circuit is configured to acquire a mains supply voltage signal of the power supply circuit, convert the mains supply voltage signal into a first small signal and transmit the first small signal to the electrical parameter measuring circuit;
the input end of the current sampling circuit is connected with the power supply circuit, the output end of the current sampling circuit is connected with the electrical parameter measuring circuit, and the current sampling circuit is configured to acquire a load current signal of the power supply circuit, convert the load current signal into a second small signal and transmit the second small signal to the electrical parameter measuring circuit; and is
The electric parameter measuring circuit is further configured to determine electric parameter data and electric energy data of the street lamp load according to the first small signal and/or the second small signal.
3. The intelligent road lamp measuring and controlling device according to claim 1,
the MCU circuit is further configured to determine that electrical parameter data of the street lamp load exceeds a preset alarm threshold, and send an alarm signal to the remote control center via the NB-IoT communication circuit.
4. The intelligent street lamp measurement and control device according to claim 1, wherein the MCU circuit is further configured to send a switching signal to the switching control circuit and/or a dimming signal to the dimming circuit according to a predetermined time period based on a time-controlled switching dimming strategy;
wherein the time-controlled switching dimming strategy comprises at least one of:
a date mode, which is set as a strategy for controlling the on-off dimming in a time period of year, month and day cycle;
a weekly mode, which is set as a strategy for controlling the on-off dimming in the time period of a weekly cycle; and
and an astronomical mode set as a strategy for controlling on-off dimming in a sunrise and sunset time period determined based on longitude and latitude.
5. The intelligent street lamp measurement and control device according to claim 1, further comprising a light sensing circuit, an output end of which is connected to the MCU circuit, and is configured to collect an external illumination intensity signal and transmit the illumination intensity signal to the MCU circuit;
the MCU circuit is further configured to send a switching signal to the switch control circuit and/or send a dimming signal to the dimming circuit according to a preset time period and the current illumination intensity signal based on a light-controlled time-controlled combined switch dimming strategy.
6. The intelligent street lamp measurement and control device according to claim 1, further comprising a wifi communication circuit connected to the MCU circuit, wherein the MCU circuit is in signal connection with an external mobile device via the wifi communication circuit and receives a debugging command and/or a control command from the external mobile device; and is
The MCU circuit is also configured to debug the intelligent street lamp measurement and control device according to the debugging command; and/or
The MCU circuit is further configured to send a switching signal to the switch control circuit and/or send a dimming signal to the dimming circuit according to the control command received in real time based on a real-time switching dimming strategy.
7. The intelligent street lamp measurement and control device according to claim 1, further comprising a GPS positioning circuit, an output end of which is connected to the MCU circuit, and configured to transmit the current position information of the intelligent street lamp measurement and control device to the MCU circuit;
the MCU circuit is further configured to read the location information and upload the location information to the remote control center via the NB-IoT communications circuit.
8. The intelligent measurement and control device for street lamps according to claim 1, further comprising a data storage circuit, an input end of which is connected to the MCU circuit, configured to store configuration information and operation logs of the intelligent measurement and control device for street lamps, and
the MCU circuit is also configured to control the data storage circuit to perform storage, reading and erasing operations.
9. The intelligent measurement and control device for street lamps according to claim 1, further comprising an SPD detection circuit configured to detect a status indication signal of an SPD integrated inside the street lamp and provide the signal to the MCU circuit.
10. The intelligent measurement and control device for street lamps according to claim 1, further comprising a switching power supply circuit, an input end of which is connected to the mains supply and is configured to convert the input mains supply into a constant low-voltage direct current for supplying the direct current to the intelligent measurement and control device for street lamps.
11. The intelligent measurement and control device for street lamps according to claim 1, wherein the dimming circuit is further configured to control the driving power supply of the street lamp load by adopting a PWM dimming mode and/or a 0-10V dimming mode according to the dimming signal sent by the MCU circuit.
12. The intelligent measurement and control device for street lamps according to claim 2, wherein the intelligent measurement and control device for street lamps comprises an upper cover, a base, a power sampling device and a control device, wherein the power sampling device is connected with the upper cover through a power supply line
The upper cover and the base are shell parts of the intelligent street lamp measurement and control device, and the upper cover and the base are assembled to form an internal space of the intelligent street lamp measurement and control device;
the power supply sampling device and the control device are arranged in the inner space, and
the voltage sampling circuit, the current sampling circuit and the switch control circuit are arranged on the power supply sampling device, the MCU circuit, the electrical parameter measuring circuit, the NB-IoT communication circuit and the dimming circuit are arranged on the control device, and the power supply sampling device is electrically connected with the control device.
13. The intelligent measurement and control device for street lamps according to claim 12, wherein the power sampling device and the control device are respectively provided with an electrical connector and are electrically connected through plugging.
14. The intelligent measurement and control device for street lamps according to claim 12, wherein the base is provided with a dimming interface for connecting with a driving power supply of the street lamp load, and the dimming interface is connected with the dimming circuit on the control device through a wire.
15. The intelligent road lamp measuring and controlling device according to claim 12, wherein the base, the power sampling device and the control device are arranged from bottom to top in the inner space, and mylar sheets are arranged between every two devices to realize safety regulation isolation.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920652961.9U CN210225855U (en) | 2019-05-08 | 2019-05-08 | Intelligent streetlamp measurement and control device based on NB-IoT technology |
| EP20802599.9A EP3941161B1 (en) | 2019-05-08 | 2020-04-30 | Nb-iot technology-based intelligent street lamp measurement and control device |
| PCT/CN2020/088249 WO2020224528A1 (en) | 2019-05-08 | 2020-04-30 | Nb-iot technology-based intelligent street lamp measurement and control device |
| US17/514,959 US11778713B2 (en) | 2019-05-08 | 2021-10-29 | Street lamp intelligent measurement and control device based on NB-IoT technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920652961.9U CN210225855U (en) | 2019-05-08 | 2019-05-08 | Intelligent streetlamp measurement and control device based on NB-IoT technology |
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| CN210225855U true CN210225855U (en) | 2020-03-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110099500A (en) * | 2019-05-08 | 2019-08-06 | 欧普照明股份有限公司 | A kind of street lamp intelligent measuring and control device based on NB-IoT technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110099500A (en) * | 2019-05-08 | 2019-08-06 | 欧普照明股份有限公司 | A kind of street lamp intelligent measuring and control device based on NB-IoT technology |
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