CN106371038B - Lighting equipment health state determination method and device and lighting equipment - Google Patents

Lighting equipment health state determination method and device and lighting equipment Download PDF

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Publication number
CN106371038B
CN106371038B CN201610677827.5A CN201610677827A CN106371038B CN 106371038 B CN106371038 B CN 106371038B CN 201610677827 A CN201610677827 A CN 201610677827A CN 106371038 B CN106371038 B CN 106371038B
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temperature
lighting device
data
unit
light
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CN106371038A (en
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张磊
许剑明
胡军
王伟为
陈紫杰
高杰
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Shenzhen Northmeter Co Ltd
Tencent Technology Shenzhen Co Ltd
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Shenzhen Northmeter Co Ltd
Tencent Technology Shenzhen Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/44—Testing lamps
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

The invention relates to a method and a device for determining the health state of lighting equipment and the lighting equipment, and belongs to the field of intelligent lighting control. The method comprises the following steps: the method comprises the steps of receiving state data sent by the lighting equipment and obtained by the lighting equipment according to electric energy data on a power supply circuit between an internal power supply unit and a light-emitting unit, determining equipment state information of the lighting equipment according to the state data, wherein the equipment state information is used for indicating the health state of the lighting equipment, namely automatically determining the health state of the lighting equipment according to the state data obtained according to the energy consumption state of the lighting equipment during working, and performing manual investigation on the lighting equipment without special personnel, so that the effects of reducing labor cost and improving management efficiency are achieved.

Description

Lighting equipment health state determination method and device and lighting equipment
Technical Field
The invention relates to the field of intelligent lighting control, in particular to a method and a device for determining the health state of lighting equipment and the lighting equipment.
Background
In the occasion of adopting a large amount of lighting equipment, the health life management of the lighting equipment is an important ring in the operation and maintenance of the lighting system, and the operation and maintenance system of the lighting equipment has the requirement that the equipment is replaced with new equipment after being used for a long time.
In the prior art, a manual inspection and replacement mode is usually adopted for scrapping and replacement of the lighting equipment, that is, a maintenance/management person manually inspects whether each lighting equipment is abnormal, for example, whether the brightness of the lighting equipment is obviously lower than the normal brightness, whether the lighting equipment cannot normally work (twinkle or cannot be started), whether heating is abnormal, and the like, and if the lighting equipment is found to be abnormal, an error is manually reported for replacement.
In implementing the present invention, the applicant has found that the following problems exist in the prior art:
to scrapping and replacing the lighting equipment in the prior art, special personnel are needed to manually check whether the lighting equipment is abnormal or not, so that great labor management cost is consumed, and the management efficiency of the lighting equipment is low.
Disclosure of Invention
In order to solve the problems that in the prior art, special personnel are required to manually check whether the lighting equipment is abnormal, great labor management cost is required to be consumed, and the management efficiency of the lighting equipment is low, the embodiment of the invention provides a method and a device for determining the health state of the lighting equipment, a device and the lighting equipment, and the technical scheme is as follows:
in a first aspect, a lighting device health status determination method is provided, the method comprising:
receiving state data sent by lighting equipment, wherein the state data is obtained by the lighting equipment according to electric energy data on a power supply circuit between a power supply unit and a light-emitting unit in the lighting equipment, and the electric energy data is used for indicating the equipment energy consumption condition of the lighting equipment;
determining device state information of the lighting device according to the state data, the device state information being indicative of a health state of the lighting device.
In a second aspect, there is provided a lighting device health status determination apparatus, the apparatus comprising:
the data receiving module is used for receiving state data sent by lighting equipment, the state data is obtained by the lighting equipment according to electric energy data on a power supply circuit between a power supply unit and a light-emitting unit in the lighting equipment, and the electric energy data is used for indicating the equipment energy consumption condition of the lighting equipment;
an information determination module configured to determine device status information of the lighting device according to the status data, where the device status information is used to indicate a health status of the lighting device.
In a third aspect, there is provided a lighting device comprising: the device comprises a power supply unit, an electric energy metering unit, a communication unit and a light-emitting unit;
the electric energy metering unit is arranged on a power supply circuit between the power supply unit and the light-emitting unit and is electrically connected with the communication unit;
the electric energy metering unit is used for measuring electric energy data on the power supply line when the light-emitting unit works, and the electric energy data is used for indicating the energy consumption condition of the light-emitting unit;
the electric energy metering unit is used for obtaining state data according to the electric energy data and controlling the communication unit to send the state data to a management device, so that the management device can determine device state information of the lighting device according to the state data, and the device state information is used for indicating the health state of the lighting device.
Wherein the electric energy metering unit includes: a sampling circuit and a metering subunit;
the sampling circuit is arranged on the power supply circuit, and the metering subunit is electrically connected with the sampling circuit and the communication unit respectively;
the metering subunit is used for acquiring current data and voltage data on the power supply line through the sampling circuit, acquiring the electric energy data according to the current data and the voltage data, acquiring the state data according to the electric energy data, and controlling the communication unit to send the state data to the management equipment.
In a fourth aspect, a status information sending method is provided, which is used in the metering subunit of the lighting device as shown in the third aspect, and the method includes:
collecting current data and voltage data through a sampling circuit, wherein the sampling circuit is arranged on a power supply line between a power supply unit and a light-emitting unit of the lighting equipment;
acquiring the electric energy data according to the current data and the voltage data, wherein the electric energy data is used for indicating the energy consumption condition of the light-emitting unit;
acquiring state data according to the electric energy data;
and controlling the communication unit to send the state data to a management device so that the management device determines device state information of the lighting device according to the state data, wherein the device state information is used for indicating the health state of the lighting device.
In a fifth aspect, there is provided a status information transmitting apparatus for use in the metering subunit of the lighting device according to the third aspect, the apparatus comprising:
the data acquisition module is used for acquiring current data and voltage data through a sampling circuit, and the sampling circuit is arranged on a power supply circuit between a power supply unit and a light-emitting unit of the lighting equipment;
the electric energy data acquisition module is used for acquiring the electric energy data according to the current data and the voltage data, and the electric energy data is used for indicating the energy consumption condition of the light-emitting unit;
the state data acquisition module is used for acquiring state data according to the electric energy data;
the first sending module is used for controlling the communication unit to send the state data to a management device, so that the management device can determine device state information of the lighting device according to the state data, and the device state information is used for indicating the health state of the lighting device.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the state data which are sent by the lighting equipment and obtained by the lighting equipment according to the electric energy data on the power supply circuit between the internal power supply unit and the light-emitting unit are received, the equipment state information of the lighting equipment is determined according to the state data, the equipment state information is used for indicating the health state of the lighting equipment, namely, the health state of the lighting equipment is automatically determined according to the state data obtained according to the energy consumption state of the lighting equipment during working, and special personnel are not needed to manually check each lighting equipment, so that the effects of reducing the labor cost and improving the management efficiency are achieved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic illustration of an implementation environment to which the present invention relates;
FIG. 2 is a schematic diagram of a lighting device according to an exemplary embodiment;
FIG. 3 is a schematic diagram of a temperature characteristic of a current-voltage characteristic of an LED according to the embodiment of FIG. 2;
fig. 4 is a flow chart illustrating a method of status information transmission according to an example embodiment;
FIG. 5 is a block diagram illustrating a status information transmitting device in accordance with an exemplary embodiment;
fig. 6 is a flow chart illustrating a lighting device health determination method according to an exemplary embodiment;
fig. 7 is a flowchart of a method for calculating a remaining usable time of a lighting device according to the embodiment shown in fig. 6;
FIG. 8 is a graph of the light decay of an LED lamp according to the embodiment shown in FIG. 6;
FIG. 9 is a flow chart of a method of calculating an amount of heat dissipated according to the embodiment of FIG. 6;
fig. 10 is a block diagram illustrating a lighting device health status determining apparatus according to an exemplary embodiment;
FIG. 11 is a block diagram illustrating a management device in accordance with an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
FIG. 1 is a schematic illustration of an implementation environment in accordance with the present invention. As shown in fig. 1, the implementation environment includes a management device 110 and a plurality of lighting devices 120.
The management device 110 is a computer device running a lighting management system, for example, the management device 110 may be a server, a server cluster or a cloud computing center, or the management device 110 may also be a terminal device of a manager, such as a personal computer, a computer workstation or a portable terminal (e.g., a smart phone, a tablet computer, etc.).
The lighting device 120 may be various types of light fixtures such as LEDs, etc., incandescent or fluorescent lamps, etc.
The lighting device 120 and the management device 110 are connected through wired or wireless communication.
In the embodiment of the present invention, the lighting device 120 may have a built-in power metering unit, configured to accurately meter various power data generated during the operation of the lighting device, where the power data may be used to indicate the device power consumption status of the lighting device, the power data includes, but is not limited to, voltage, current, power factor, electric quantity, and the like, the power data may be directly used as the status data of the lighting device 120, and in addition, the power metering unit may further process the power data to obtain some other status data of the lighting device 120, such as dimming level, light emitting unit temperature, and operation duration, and in addition, one or more sensors, such as a temperature sensor or a light sensor, may be further disposed in the lighting device, and the status data capable of reflecting the device power consumption of the lighting device may be obtained by processing the data collected by the sensors, such as temperature, luminous flux, etc., the lighting device may transmit directly acquired or processed generated status data to the management device 110, which status data is analyzed by the management device 110 to determine the health of the lighting device.
Fig. 2 is a schematic structural diagram of a lighting device according to an exemplary embodiment, wherein the lighting device 20 may be implemented as the lighting device 120 in the implementation environment shown in fig. 1. As shown in fig. 2, the lighting device 20 may include: a power supply unit 201, an electric energy metering unit 202, a communication unit 203 and a light emitting unit 204;
the electric energy metering unit 202 is disposed on the power supply line 205 between the power supply unit 201 and the light emitting unit 204, and the electric energy metering unit 202 is electrically connected to the communication unit 203.
The light-emitting unit 204 is a component that emits light using the power supplied by the power supply unit 201, and the power consumed by the light-emitting unit usually occupies most of the power consumed by the lighting apparatus. The Light Emitting unit 204 may be an LED (Light Emitting Diode) assembly, an incandescent filament, or a fluorescent tube, etc., distinguished by the Light Emitting principle.
Optionally, the light emitting unit 204 further includes a dimming control unit 204a and a relay 204b, wherein the dimming control unit 204a and the relay 204b may be electrically connected to the electric energy metering unit 202 or the communication unit 203, respectively. The two units are electrically connected, which means that the two units can be in wired electrical communication. The dimming control unit 204a can be used to adjust the light emitting brightness of the light emitting unit 204, for example, taking the light emitting unit 204 as an LED light emitting unit as an example, the dimming control unit 204a can adjust the light emitting brightness of the LED by a Pulse Width Modulation (PWM) method. The relay 204b is generally used to control the on/off state of the light emitting unit 204.
The communication unit 203 may support wired or wireless communication, for example, the communication unit 203 may support short-distance wireless communication technologies such as Wi-Fi, bluetooth, Zigbee, or UWB (Ultra wide band); alternatively, the communication unit 203 may also support various 2/3/4G network communication technologies, including but not limited to GSM (Global System of mobile communication), GPRS (General Packet Radio Service), CDMA (Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution), and the like; alternatively, the communication unit 203 may support wired communication forms, such as twisted pair communication, optical fiber communication, or power line communication.
The power metering unit 202 is configured to measure power data on the power line 205 when the light emitting unit 204 is operating, where the power data is used to indicate a device power consumption condition of the light emitting unit 204, and the power data may include voltage, current, power factor, power amount, and the like.
The power metering unit 202 is further configured to obtain status data of the lighting device according to the power data, for example, the status data may include, in addition to the power data, a temperature of the light emitting unit, an accumulated time period during which the consumed electric power exceeds a power threshold, and the like, and the power metering unit 202 may further control the communication unit 203 to send the status data to the management device, so that the management device determines the health condition of the lighting device according to the status data.
Most of the electric energy consumed by the lighting device is used for emitting light, a small part of the electric energy generates heat loss, and only a very small amount of electric energy drives other elements, so that when the light-emitting unit 204 works, the electric energy data obtained by the electric energy metering unit 202 through measurement can indicate the device energy consumption condition of the whole lighting device to a certain extent. As shown in fig. 2, the electric energy metering unit 202 includes: a sampling circuit 202a and a metering subunit 202 b;
the sampling circuit 202a is disposed on the power supply line 205, and the metering sub-unit 202b is electrically connected to the sampling circuit 202a and the communication unit 203, respectively.
The sampling circuit 202a may include a current sampling unit and a voltage sampling unit (not shown in the figure), and the metering subunit 202b is configured to collect current data and voltage data on the power supply line 205 through the current sampling unit and the voltage sampling unit in the sampling circuit 202a, obtain electric energy data according to the current data and the voltage data, obtain status data according to the electric energy data, and control the communication unit to send the status data to the management device.
The sampling circuit 202a may be disposed at an electric energy output end of the power supply unit 201, at this time, the voltage data and the current data acquired by the sampling circuit 202a are overall voltage data and current data of the lighting device, and the metering subunit 202b directly reflects energy consumption of all elements in the lighting device according to the electric energy data acquired by the voltage data and the current data; or, the sampling circuit 202a may also be disposed at the power input end of the light-emitting unit 204, at this time, the voltage data and the current data acquired by the sampling circuit 202a are the single voltage data and the current data of the light-emitting unit 204, and the metering subunit 202b directly embodies the power consumption of the light-emitting unit 204 according to the power data acquired by the voltage data and the current data.
The metering subunit 202b may be an SoC (System on Chip) Chip, and functions such as single-Phase metering, a processor, power management, clock management, PLL (Phase Locked Loop), JTAG (joint test Action Group) debugging, and the like are integrated on the Chip. The specific chip parameters can be designed based on an 8-bit CPU, and can be provided with an 8052 compatible instruction set and a bus structure, an on-chip integrated PLL frequency doubling circuit, on-chip integrated multiple memory resources, such as a Flash program memory, a Flash data memory, an info Flash memory with protection operation, an internal data register, an external data register and the like, the chip can also have a power supply monitoring function, support multiple awakening modes such as external interruption and the like, and an on-chip integrated temperature sensor, a battery voltage detection circuit and the like, and is integrated with external interfaces such as a key, serial communication, an LCD, an I2C bus and the like.
It should be noted that different types of lighting devices, their associated sampling circuits and metering subunits are different. For example, taking the lighting device as an example, different electric energy metering units can be matched according to different lighting modes to measure and output electric energy to drive the light emitting component to work. For example, for an LED lamp, a corresponding electric energy metering unit may be configured to perform dc measurement and PWM (Pulse Width Modulation) output; for the incandescent lamp, the corresponding electric energy metering unit can be matched for carrying out alternating current/direct current measurement and alternating current/direct current output; for the fluorescent lamp, the corresponding electric energy metering unit can be matched to measure the alternating current parameters and output the alternating current electric quantity.
Specifically, taking the lighting device as an LED lamp as an example, the electric energy metering unit 202 can implement dc measurement and metering on the bead driving of the LED lamp. The process of obtaining the electric energy data through measurement and obtaining the state data according to the electric energy data can be as follows:
1) direct measurement of voltage and current: the metering subunit 202b measures the instantaneous voltage U and the instantaneous current I on the power supply line 205 through the sampling unit 202 a. Specifically, the metering subunit 202b may collect the instantaneous voltage U and the instantaneous current I on the power supply line 205 through a voltage sampling circuit and a current sampling circuit in the sampling unit 202a, respectively.
Optionally, in order to ensure a stable lighting effect and eliminate low-frequency interference, a high-pass filter is usually disposed in the lighting device, and the presence of the high-pass filter affects the accuracy of voltage and current measurement, so in the embodiment of the present invention, when the metering subunit 202b measures the instantaneous voltage U and the instantaneous current I on the power supply line 205 through the sampling unit 202a, the high-pass filter in the LED lamp may be temporarily turned off.
2) Calculating power from voltage and current: after the metering subunit 202b collects the instantaneous voltage U and the instantaneous current I, the instantaneous electric power P on the power supply line 205 can be calculated according to the instantaneous voltage U and the instantaneous current I, and the calculation formula is P ═ I × U.
3) The temperature of the PN junction (hereinafter, expressed as junction temperature) is measured indirectly: when the LED lamp starts to work, the metering subunit 202b first measures the electric energy parameter on the primary power supply line 205 through the sampling unit 202a to obtain the instantaneous voltage V1And after the LED lamp works for at least 1 hour, measuring the electric energy parameter once again after the LED lamp works and the heat balance is achieved, and obtaining the instantaneous voltage V2. The junction temperature T can be obtained according to the following formulajThe value of (c):
Tj＝(V1-V2)/a。
wherein a is the temperature coefficient of the volt-ampere characteristic of the LED lamp, and the unit is mV/DEG C.
The LED is a semiconductor diode having a current-voltage characteristic as all diodes and a temperature characteristic as all semiconductor diodes, fig. 3 shows a schematic diagram of the temperature characteristic of the current-voltage characteristic of an LED according to an embodiment of the present invention, in which the current-voltage characteristic shifts to the left when the temperature rises, as shown in fig. 3, assuming I is given to the LED lampoConstant current supply at junction temperature T1When the voltage is V1And when the junction temperature rises to T2Time, the whole current-voltage characteristic shifts to the left, current IoWithout change, the voltage becomes V2. The two voltage differences are removed by temperature, and the temperature coefficient thereof can be obtained and expressed in mV/DEG C. For a conventional silicon diode, this temperature coefficient is approximately-2 mV/deg.C. However, most LEDs are not made of silicon materials, so the temperature coefficient of the LEDs needs to be measured separately, and the data sheet of each LED lamp manufacturer mostly gives the temperature coefficient of the product.
At present, an LED lamp on the market usually adopts a mode of connecting a plurality of beads in series to meet the illumination requirement, so that the junction temperature T is higherjIn the calculation, the average junction temperature can be obtained only after the voltage difference value is divided by the number N of the series-connected lamp beads, and the specific formula can be expressed as follows:
Tj＝[(V1-V2)/N]/a。
it should be noted that, in the above method for indirectly measuring junction temperature, the junction temperature of the LED lamp after reaching thermal equilibrium is measured, and the junction temperature change of the LED lamp after starting to emit light cannot be reflected, in the embodiment of the present invention, a temperature sensor (not shown in fig. 2) may be further disposed in the lighting lamp for a PN junction in the LED lamp, and the temperature sensor may be electrically connected to the metering subunit 202b, so that the metering subunit 202b may measure the junction temperature of the LED lamp at each time point from the start of operation through the temperature sensor, and since the level of the junction temperature reflects the heat energy conversion of the PN junction in the LED lamp, the energy consumption condition of the lighting device may also be indicated, therefore, the embodiment of the present invention may also use the junction temperature at each time point measured by the temperature sensor as the electric energy data.
4) Accumulating the working time: the metering subunit 202b may accumulate the operating time of the lighting fixture according to the measured instantaneous electric power, specifically, when detecting that the instantaneous electric power exceeds the power threshold, the metering subunit 202b may determine that the lighting fixture is in an operating state, and start to count the accumulated time that the electric power on the power supply line 205 exceeds the power threshold, when the instantaneous electric power does not exceed the power threshold, suspend the counting, when the instantaneous electric power on the subsequent power supply line 205 exceeds the power threshold again, continue the counting, and the accumulated time that the electric power on the power supply line 205 exceeds the power threshold is the accumulated operating time of the lighting fixture, thereby achieving the purpose of accurately metering the operating time of the lighting fixture. Wherein the power threshold may be preset in the metering subunit 202 b. The metering subunit 202b may use the accumulated time length obtained by statistics that the power supplied to the power supply line 205 exceeds the power threshold as the status data.
In the embodiment of the present invention, besides the temperature sensor, other types of sensors (not shown in fig. 2) may be built in the lighting device, for example, a light sensor electrically connected to the metering subunit 202b may be provided, so that the metering subunit 202b may measure the light flux when the lighting device is operating through the light sensor, and the light flux may also be used as the above-mentioned power data.
Wherein the status data comprises at least one of the following parameters: the temperature of the PN junction in the light emitting unit 204, the accumulated time period during which the electric power on the power supply line 205 exceeds the power threshold, the electric quantity parameter indicating the electric quantity consumed on the power supply line 205 per unit time period, and the actual power parameter indicating the electric power consumed on the power supply line 205.
The actual power parameter may be the instantaneous voltage U and the instantaneous current I on the power supply line 205 measured by the metering subunit 202b through the sampling unit 202a, or the actual power parameter may also be the instantaneous power calculated by the metering subunit 202b through the instantaneous voltage U and the instantaneous current I.
Optionally, in the embodiment of the present invention, the lighting device may further include a light sensor (not shown in the figure) disposed corresponding to the light emitting unit 204, the light sensor is electrically connected to the metering subunit 202b, and when the state data includes a temperature of a PN junction in the light emitting unit 204, the metering subunit 202b is further configured to obtain a light flux of the lighting device through sensing data collected by the light sensor, and control the communication unit to send the light flux to the management device.
Optionally, the lighting device may further include a temperature sensor (not shown in the figure) disposed corresponding to the light emitting unit 204, the temperature sensor is electrically connected to the metering subunit 202b, and when the status data includes the parameter of the electric quantity indicating the electric quantity consumed on the power supply line 205 in the unit time period, the metering subunit 202b is further configured to obtain a first temperature and a second temperature through sensing data acquired by the temperature sensor, and control the communication unit 203 to send the first temperature and the second temperature to the management device, where the first temperature is a temperature of a PN junction in the light emitting unit 204 at a start time of the unit time period, and the second temperature is a temperature of the PN junction at an end time of the unit time period.
In summary, in the lighting device provided in the embodiments of the present invention, the sampling circuit and the metering subunit are disposed on the power supply line between the power supply unit and the light emitting unit in the lighting device, and the metering subunit is electrically connected to the communication unit, when the light emitting unit operates, the metering subunit measures the electric energy data on the power supply line through the sampling circuit, obtains the status data according to the electric energy data, and sends the status data to the management device, and the management device determines the device status information of the lighting device according to the status data, where the device status information is used to indicate the health status of the lighting device, and does not need a special person to manually check each lighting device, thereby achieving the effects of reducing the labor cost and improving the management efficiency.
Fig. 4 is a flowchart illustrating a status information sending method according to an exemplary embodiment of the present invention, which may be used in the metering subunit 202b of the lighting device 20 implementing the environment shown in fig. 2. As shown in fig. 4, the status information transmitting method may include the following steps:
step 401, collecting current data and voltage data through a sampling circuit, where the sampling circuit is disposed on a power supply line between a power supply unit and a light emitting unit of the lighting device.
Step 402, obtaining the power data according to the current data and the voltage data, wherein the power data is used for indicating the power consumption condition of the light-emitting unit.
And step 403, acquiring state data according to the electric energy data.
Step 404, controlling the communication unit to send the status data to a management device, so that the management device determines device status information of the lighting device according to the status data, wherein the device status information is used for indicating the health status of the lighting device.
Optionally, the status data includes at least one of the following parameters: the temperature of a PN junction in the light emitting unit, the accumulated time during which the electric power on the power supply line exceeds a power threshold, a quantity of electricity parameter indicating the quantity of electricity consumed on the power supply line per unit time period, and an actual power parameter indicating the electric power consumed on the power supply line.
Optionally, the lighting device further includes a light sensor disposed corresponding to the light emitting unit, and when the state data includes a temperature of a PN junction in the light emitting unit, the metering subunit in the lighting device obtains a luminous flux of the lighting device through sensing data collected by the light sensor, and controls the communication unit to send the luminous flux to the management device.
Optionally, the lighting device further includes a temperature sensor disposed corresponding to the light emitting unit, and when the status data includes the parameter of the electric quantity indicating the electric quantity consumed on the power supply line in a unit time period, the metering subunit in the lighting device further obtains a first temperature and a second temperature through sensing data collected by the temperature sensor, and controls the communication unit to send the first temperature and the second temperature to the management device, where the first temperature is a temperature of a PN junction in the light emitting unit at a start time of the unit time period, and the second temperature is a temperature of the PN junction at an end time of the unit time period.
In summary, in the method provided by the embodiment of the present invention, the sampling circuit and the metering subunit are disposed on the power supply line between the power supply unit and the light emitting unit in the lighting device, and the metering subunit is electrically connected to the communication unit, when the light emitting unit operates, the metering subunit measures the electric energy data on the power supply line through the sampling circuit, obtains the status data according to the electric energy data, and sends the status data to the management device, and the management device determines the device status information of the lighting device according to the status data, where the device status information is used to indicate the health status of the lighting device, and does not need a special person to manually check each lighting device, so as to achieve the effects of reducing the labor cost and improving the management efficiency.
Referring to fig. 5, a block diagram of a status information sending apparatus according to an embodiment of the present invention is shown. The status information sending device may be implemented as part or all of the metering subunit of the management apparatus shown in fig. 2 in a hardware or software and hardware combination manner. The state information transmitting apparatus may include:
the data acquisition module 501 is configured to acquire current data and voltage data through a sampling circuit, where the sampling circuit is disposed on a power supply line between a power supply unit and a light emitting unit of the lighting device;
an electric energy data obtaining module 502, configured to obtain the electric energy data according to the current data and the voltage data, where the electric energy data is used to indicate an energy consumption status of the light emitting unit;
a status data obtaining module 503, configured to obtain status data according to the electric energy data;
a first sending module 504, configured to control the communication unit to send the status data to a management device, so that the management device determines device status information of the lighting device according to the status data, where the device status information is used to indicate a health status of the lighting device.
Optionally, the status data includes at least one of the following parameters:
a temperature of a PN junction in the light emitting unit;
the accumulated time length of the electric power on the power supply line exceeding the power threshold value;
a power parameter indicative of an amount of power consumed on the power supply line per unit time period;
an actual power parameter indicative of electrical power consumed on the power supply line.
Optionally, the lighting device further includes a light sensor disposed corresponding to the light emitting unit, and the apparatus further includes:
a luminous flux obtaining module, configured to obtain, when the state data includes a temperature of a PN junction in the light emitting unit, a luminous flux of the lighting device through sensing data collected by the light sensor;
and the second sending module is used for controlling the communication unit to send the luminous flux to the management equipment.
Optionally, the lighting device further includes a temperature sensor disposed corresponding to the light emitting unit, and the apparatus further includes:
a temperature acquisition module configured to acquire a first temperature and a second temperature from sensing data acquired by the temperature sensor when the status data includes the electric quantity parameter indicating the electric quantity consumed on the power supply line within a unit time period, the first temperature being a temperature of a PN junction in the light emitting unit at a start time of the unit time period, and the second temperature being a temperature of the PN junction at an end time of the unit time period;
and the third sending module is used for controlling the communication unit to send the first temperature and the second temperature to the management equipment.
In summary, in the apparatus provided in the embodiment of the present invention, the sampling circuit and the metering subunit are disposed on the power supply line between the power supply unit and the light emitting unit in the lighting device, and the metering subunit is electrically connected to the communication unit, when the light emitting unit operates, the metering subunit measures the electric energy data on the power supply line through the sampling circuit, obtains the status data according to the electric energy data, and sends the status data to the management device, and the management device determines the device status information of the lighting device according to the status data, where the device status information is used to indicate the health status of the lighting device, and does not need a special person to manually check each lighting device, so as to achieve the effects of reducing the labor cost and improving the management efficiency.
In the lighting device according to the above embodiment of the present invention, after the lighting device sends the status data to the management device, the management device may determine the device status information of the lighting device according to the status data, that is, obtain the health status of the lighting device, so that the management/maintenance personnel can determine whether to replace or maintain the lighting device according to the health status of the lighting device. The process of the management device determining the device status information of the lighting device refers to the following embodiments.
Fig. 6 is a flowchart illustrating a method for determining health status of a lighting device according to an exemplary embodiment of the present invention, which may be used in the management device 110 of the implementation environment shown in fig. 1. As shown in fig. 6, the lighting device health status determination method may include the following steps:
step 601, receiving status data sent by a lighting device, where the status data is obtained by the lighting device according to power data on a power supply line between a power supply unit and a light emitting unit inside the lighting device, and the power data is used for indicating an energy consumption status of the light emitting unit.
In step 602, device status information of the lighting device is determined according to the status data, and the device status information is used for indicating the health status of the lighting device.
The specific data content of the power data and the status data may refer to the description in the lighting device shown in the embodiment corresponding to fig. 2, and is not described herein again. The following description of the embodiments of the present invention will further describe the management device determining the device status information of the lighting device according to the status data.
When the lighting device is a Light Emitting Diode (LED) lamp and the status data includes a temperature of a PN junction in the light emitting unit, the management device may determine a remaining usable time period of the lighting device. Specifically, please refer to fig. 7, which shows a flowchart of a method for calculating a remaining usable time of a lighting device according to an embodiment of the present invention. As shown in fig. 7, the method includes the steps of:
step 602a, a luminous flux of the lighting device is acquired.
The luminous flux may be a luminous flux inside or outside the lighting device measured by a metering subunit (refer to fig. 2) in the lighting device through a light sensor, and the lighting device may transmit the luminous flux measured by the light sensor to the management device in the state data, and the management device obtains the luminous flux from the state data.
Alternatively, the luminous flux may be obtained by the management device through other means, for example, a light sensor is arranged close to the lighting device in advance, the light sensor is connected to the management device, and the management device calculates the luminous flux of the lighting device according to the data measured by the light sensor.
Step 602b, determining the remaining usable time of the lighting device according to the temperature of the PN junction, the luminous flux and the light decay curve of the lighting device.
Referring to fig. 8, a light decay curve of an LED lamp is shown, which shows a relationship among junction temperature, available time and luminous flux of the LED lamp, and according to the light decay curve, the remaining available time of the LED lamp can be calculated by combining the temperature of the PN junction in the LED and the luminous flux. The light attenuation curve can be measured in advance by a manufacturer of the LED lamp and provided for management equipment.
In addition, in the method, the temperature of the PN junction in the state data may be obtained by the metering subunit through an indirect measurement method in the embodiment shown in fig. 2, and the junction temperature of the LED lamp after reaching the thermal equilibrium, or may be the junction temperature collected by the metering subunit through the temperature sensor.
The management device may also determine a remaining usable time period of the lighting device when the status data includes an accumulated time period in which the electric power on the power supply line exceeds the power threshold. Specifically, the management device may obtain a total available time length of the lighting device, and determine the remaining available time length of the lighting device according to the accumulated time length and the total available time length. The remaining usable time period may be a difference between the total usable time period and the above-described accumulated time period. The total available time period may be provided by the manufacturer of the lighting device.
When the lighting device is a Light Emitting Diode (LED) lamp and the status data includes an electric quantity parameter, the electric quantity parameter is used for indicating the electric quantity consumed on the power supply line in the unit time period, the management device can determine the heat dissipated by the lighting device in the unit time, so that the heat dissipation effect of the lighting device can be accurately determined. Specifically, please refer to fig. 9, which illustrates a flowchart of a method for calculating an amount of heat dissipated according to an embodiment of the present invention. As shown in fig. 9, the method includes the steps of:
in step 602c, a first temperature and a second temperature are obtained, the first temperature being a temperature of a PN junction in the light emitting unit at the start time of the unit period, and the second temperature being a temperature of the PN junction at the end time of the unit period.
Specifically, please refer to the scheme description that the metering subunit in the lighting device shown in fig. 2 measures the first temperature and the second temperature through the temperature sensor, and sends the first temperature and the second temperature to the management device through the communication unit, which is not described herein again.
Step 602d, obtaining the mass, specific heat capacity, electric energy conversion efficiency and light energy conversion efficiency of the lighting device, where the electric energy conversion efficiency is used to indicate the efficiency of the lighting device for converting electric energy into other forms of energy, and the light energy conversion efficiency is used to indicate the efficiency of the lighting device for converting electric energy into light energy.
Step 602e, calculating the heat quantity Q absorbed by the lighting device in the unit time period according to the first temperature, the second temperature, the mass and the specific heat capacity1。
Step 602f, calculating the heat Q generated by the lighting device in the unit time period according to the electric quantity parameter, the electric energy conversion efficiency and the light energy conversion efficiency2。
Step 602g, adding Q2And Q1The difference of (a) is calculated as the amount of heat dissipated by the lighting device per unit time period.
Specifically, assume that the initial junction temperature of the LED lamp is t1The junction temperature after a period of operation (unit time) is t2Combining the theoretical data of the whole lamp mass M and the specific heat capacity C provided by the manufacturer, the heat Q absorbed by the lamp bead part in the period of time can be calculated1The concrete formula is as follows:
Q1＝C*M*(t2-t1)。
the management device can directly obtain the total consumed electric quantity W in the time period measured and obtained by the electric energy metering unit 202 according to the state parameters fed back by the LED lamp, and combines the electric energy conversion efficiency η of the LED lamp provided by the manufacturer1And light energy conversion efficiency eta2The heat Q dissipated by the radiator of the LED lamp in the period of time can be calculated0The specific formula is as follows:
Q0＝W*η1*(1-η2)-Q1。
according to the calculated heat quantity Q emitted by the radiator0And the management equipment can evaluate the heat dissipation effect of the LED lamp.
When the status data includes an actual power parameter indicating electric power consumed on the power supply line, the management device may determine device status information of the lighting device according to the status data, and specifically, the management device may acquire a rated power parameter of the lighting device, match the actual power parameter with the rated power parameter, obtain a matching result, and determine an operating state of the lighting device according to the matching result, the operating state including a normal state or an abnormal state. The actual power parameter may be electric power, or may be instantaneous voltage and instantaneous current used for calculating electric power.
In summary, in the method provided in the embodiment of the present invention, status data sent by the lighting device and obtained by the lighting device according to the power data on the power supply line between the internal power supply unit and the light emitting unit is received, and device status information of the lighting device is determined according to the status data, where the device status information is used to indicate a health status of the lighting device, that is, the health status of the lighting device is automatically determined according to the status data obtained according to the energy consumption status of the lighting device during operation, and no special personnel is required to perform manual inspection on each lighting device, so that the effects of reducing labor cost and improving management efficiency are achieved.
Referring to fig. 10, a block diagram of a health status determining apparatus for an illumination device according to an embodiment of the present invention is shown. The lighting device health status determination apparatus may be implemented as part or all of the management device 110 of the implementation environment shown in fig. 1 by hardware or a combination of hardware and software. The lighting device health status determination apparatus may include:
the data receiving module 1001 is configured to receive status data sent by a lighting device, where the status data is obtained by the lighting device according to electric energy data on a power supply line between a power supply unit and a light emitting unit inside the lighting device, and the electric energy data is used to indicate an energy consumption status of the light emitting unit;
an information determining module 1002, configured to determine device status information of the lighting device according to the status data, where the device status information is used to indicate a health status of the lighting device.
Optionally, the lighting device is a light emitting diode LED lamp, the status data includes a temperature of a PN junction in the light emitting unit, and the information determining module 1002 includes:
a light flux acquiring unit for acquiring a light flux of the lighting device;
a first time length determination unit for determining the remaining available time length of the lighting device according to the temperature of the PN junction, the luminous flux and the light decay curve of the lighting device.
Optionally, the status data includes an accumulated time period during which the electric power on the power supply line exceeds a power threshold, and the information determining module 1002 includes:
a first obtaining unit, configured to obtain a total available duration of the lighting device;
and the second time length determining unit is used for determining the remaining available time length of the lighting equipment according to the accumulated time length and the total available time length.
Optionally, the lighting device is a light emitting diode LED lamp, the status data includes an electric quantity parameter, the electric quantity parameter is used to indicate an electric quantity consumed on the power supply line in the unit time period, and the information determining module 1002 includes:
a second acquisition unit configured to acquire a first temperature and a second temperature, the first temperature being a temperature of a PN junction in the light emitting unit at a start time of the unit period, the second temperature being a temperature of the PN junction at an end time of the unit period;
a third obtaining unit, configured to obtain a mass, a specific heat capacity, an electric energy conversion efficiency, and a light energy conversion efficiency of the lighting device, where the electric energy conversion efficiency is used to indicate efficiency of the lighting device in converting electric energy into energy in other forms, and the light energy conversion efficiency is used to indicate efficiency of the lighting device in converting electric energy into light energy;
a first heat amount calculation unit for calculating an amount of heat Q absorbed by the lighting device in the unit time period based on the first temperature, the second temperature, the mass, and the specific heat capacity1；
A second heat calculating unit for calculating heat Q generated by the lighting device in the unit time period according to the electric quantity parameter, the electric energy conversion efficiency and the light energy conversion efficiency2；
A third heat quantity calculating unit for calculating Q2And Q1Is calculated as the amount of heat dissipated by the lighting device per unit time period.
Optionally, the status data includes an actual power parameter indicating an electric power consumed on the power supply line, and the information determining module 1002 includes:
a fourth obtaining unit, configured to obtain a rated power parameter of the lighting device;
the matching unit is used for matching the actual power parameter with the rated power parameter to obtain a matching result;
and the state determining unit is used for determining the working state of the lighting equipment according to the matching result, wherein the working state comprises a normal state or an abnormal state.
In summary, the apparatus provided in the embodiment of the present invention receives the status data sent by the lighting device and obtained by the lighting device according to the power data on the power supply line between the internal power supply unit and the light emitting unit, and determines the device status information of the lighting device according to the status data, where the device status is used to indicate the health status of the lighting device, that is, the health status of the lighting device is automatically determined according to the status data obtained according to the energy consumption status of the lighting device during operation, and no special personnel is required to manually check each lighting device, so as to achieve the effects of reducing the labor cost and improving the management efficiency.
Referring to fig. 11, a schematic structural diagram of a server according to an embodiment of the present invention is shown. The server 1100 includes a Central Processing Unit (CPU)1101, a system memory 1104 including a Random Access Memory (RAM)1102 and a Read Only Memory (ROM)1103, and a system bus 1105 connecting the system memory 1104 and the central processing unit 1101. The server 1100 also includes a basic input/output system (I/O system) 1106, which facilitates transfer of information between devices within the computer, and a mass storage device 1107 for storing an operating system 1113, application programs 1112 and other program modules 1115.
The basic input/output system 1106 includes a display 1108 for displaying information and an input device 1109 such as a mouse, keyboard, etc. for user input of information. Wherein the display 1108 and input device 1109 are connected to the central processing unit 1101 through an input output controller 1110 connected to the system bus 1105. The basic input/output system 1106 may also include an input/output controller 1110 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, input-output controller 1110 also provides output to a display screen, a printer, or other type of output device.
The mass storage device 1107 is connected to the central processing unit 1101 through a mass storage controller (not shown) that is connected to the system bus 1105. The mass storage device 1107 and its associated computer-readable media provide non-volatile storage for the server 1100. That is, the mass storage device 1107 may include a computer-readable medium (not shown) such as a hard disk or CD-ROM drive.
Without loss of generality, the computer-readable media may comprise computer storage media and communication media. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes RAM, ROM, EPROM, EEPROM, flash memory or other solid state memory technology, CD-ROM, DVD, or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that the computer storage media is not limited to the foregoing. The system memory 1104 and mass storage device 1107 described above may be collectively referred to as memory.
The server 1100 may also operate in accordance with various embodiments of the invention by connecting to remote computers over a network, such as the internet. That is, the server 1100 may connect to the network 1112 through the network interface unit 1111 that is coupled to the system bus 1105, or may connect to other types of networks or remote computer systems (not shown) using the network interface unit 1111.
The memory also includes one or more programs stored in the memory, which are executed by the central processing unit 1101 to implement all or part of the steps performed by the management apparatus in the embodiment shown in fig. 6.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (5)

1. A lighting device health status determination method, the method comprising:
receiving state data sent by lighting equipment, wherein the state data is obtained by a metering subunit in an electric energy metering unit inside the lighting equipment according to electric energy data on a power supply line between a power supply unit and a light-emitting unit inside the lighting equipment, the electric energy data is obtained by the metering subunit according to current data and voltage data on the power supply line, which are acquired by a sampling circuit in the electric energy metering unit, under the condition that a high-pass filter in the lighting equipment is turned off, and the electric energy data is used for indicating the energy consumption condition of the light-emitting unit;
determining device state information of the lighting device according to the state data, wherein the device state information is used for indicating the health state of the lighting device;
wherein, when the status data comprises an actual power parameter, the determining device status information of the lighting device according to the status data comprises:
acquiring rated power parameters of the lighting equipment, matching the actual power parameters with the rated power parameters to obtain matching results, and determining the working state of the lighting equipment according to the matching results, wherein the working state comprises a normal state or an abnormal state;
when the lighting device is a Light Emitting Diode (LED) lamp and the state data includes the temperature of a PN junction in the light emitting unit, determining device state information of the lighting device according to the state data includes:
acquiring luminous flux of the lighting equipment, wherein the luminous flux is acquired through sensing data acquired by a light sensor arranged in the lighting equipment corresponding to the light-emitting unit, and the light sensor is electrically connected with the metering subunit;
determining the remaining usable time of the lighting device according to the temperature of the PN junction, the luminous flux and the light attenuation curve of the lighting device;
when the status data includes an accumulated duration in which the electric power on the power supply line exceeds a power threshold, the determining device status information of the lighting device according to the status data includes:
acquiring the total available time length of the lighting equipment;
determining the remaining available time length of the lighting equipment according to the accumulated time length and the total available time length;
when the lighting device is a Light Emitting Diode (LED) lamp, and the status data includes an electric quantity parameter, the electric quantity parameter is used for indicating the electric quantity consumed on the power supply line in a unit time period, and determining the device status information of the lighting device according to the status data includes:
acquiring a first temperature and a second temperature, wherein the first temperature is the temperature of a PN junction in the light-emitting unit at the start time of the unit time period, the second temperature is the temperature of the PN junction at the end time of the unit time period, the first temperature and the second temperature are acquired through sensing data acquired by a temperature sensor arranged in the lighting equipment corresponding to the light-emitting unit, and the temperature sensor is electrically connected with the metering subunit;
acquiring the mass, specific heat capacity, electric energy conversion efficiency and light energy conversion efficiency of the lighting equipment, wherein the electric energy conversion efficiency is used for indicating the efficiency of the lighting equipment for converting electric energy into energy in other forms, and the light energy conversion efficiency is used for indicating the efficiency of the lighting equipment for converting electric energy into light energy;
calculating the amount of heat Q absorbed by the lighting device in the unit time period according to the first temperature, the second temperature, the mass and the specific heat capacity1；
Calculating the heat Q generated by the lighting equipment in the unit time period according to the electric quantity parameter, the electric energy conversion efficiency and the light energy conversion efficiency2；
Will Q2And Q1Is calculated as the amount of heat dissipated by the lighting device per unit time period.
2. An illumination device health state determination apparatus, the apparatus comprising:
the data receiving module is used for receiving state data sent by lighting equipment, the state data is obtained by a metering subunit in an electric energy metering unit in the lighting equipment according to electric energy data on a power supply line between a power supply unit and a light-emitting unit in the lighting equipment, the electric energy data is obtained by the metering subunit according to current data and voltage data on the power supply line, which are acquired by a sampling circuit in the electric energy metering unit, under the condition that a high-pass filter in the lighting equipment is turned off, and the electric energy data is used for indicating the energy consumption condition of the light-emitting unit;
an information determination module, configured to determine device status information of the lighting device according to the status data, where the device status information is used to indicate a health status of the lighting device;
wherein, when the status data includes an actual power parameter, the information determining module includes:
a fourth obtaining unit, configured to obtain a rated power parameter of the lighting device; the matching unit is used for matching the actual power parameter with the rated power parameter to obtain a matching result; the state determining unit is used for determining the working state of the lighting equipment according to the matching result, and the working state comprises a normal state or an abnormal state;
when the lighting device is a Light Emitting Diode (LED) lamp and the status data includes a temperature of a PN junction in the light emitting unit, the information determination module includes:
the luminous flux acquisition unit is used for acquiring the luminous flux of the lighting equipment, wherein the luminous flux is acquired through sensing data acquired by a light sensor which is arranged in the lighting equipment and corresponds to the light-emitting unit, and the light sensor is electrically connected with the metering subunit; a first time length determining unit, configured to determine a remaining available time length of the lighting device according to the temperature of the PN junction, the luminous flux, and a light decay curve of the lighting device;
when the status data includes an accumulated duration in which the electric power on the power supply line exceeds a power threshold, the information determination module includes:
a first obtaining unit, configured to obtain a total available duration of the lighting device; the second time length determining unit is used for determining the remaining available time length of the lighting equipment according to the accumulated time length and the total available time length;
when the lighting device is a Light Emitting Diode (LED) lamp, the status data includes an electric quantity parameter, the electric quantity parameter is used for indicating the electric quantity consumed on the power supply line in a unit time period, and the information determination module includes:
a second obtaining unit, configured to obtain a first temperature and a second temperature, where the first temperature is a temperature of a PN junction in the light emitting unit at a start time of the unit time period, the second temperature is a temperature of the PN junction at an end time of the unit time period, the first temperature and the second temperature are obtained through sensing data collected by a temperature sensor, which is arranged in the lighting apparatus and corresponds to the light emitting unit, and the temperature sensor is electrically connected to the metering subunit; a third obtaining unit, configured to obtain a mass, a specific heat capacity, an electric energy conversion efficiency, and a light energy conversion efficiency of the lighting device, where the electric energy conversion efficiency is used to indicate efficiency of the lighting device in converting electric energy into energy in other forms, and the light energy conversion efficiency is used to indicate efficiency of the lighting device in converting electric energy into light energy; first heat quantity calculating unitCalculating the amount of heat Q absorbed by the lighting device per unit time period from the first temperature, the second temperature, the mass and the specific heat capacity1(ii) a A second heat calculating unit for calculating heat Q generated by the lighting device in the unit time period according to the electric quantity parameter, the electric energy conversion efficiency and the light energy conversion efficiency2(ii) a A third heat quantity calculating unit for calculating Q2And Q1Is calculated as the amount of heat dissipated by the lighting device per unit time period.
3. An illumination device, characterized in that the illumination device comprises: the device comprises a power supply unit, an electric energy metering unit, a communication unit, a light-emitting unit and a high-pass filter;
the electric energy metering unit is arranged on a power supply circuit between the power supply unit and the light-emitting unit and is electrically connected with the communication unit;
the electric energy metering unit includes: a sampling circuit and a metering subunit;
the sampling circuit is arranged on the power supply circuit, and the metering subunit is electrically connected with the sampling circuit and the communication unit respectively;
the metering subunit is used for controlling the high-pass filter to be closed when the light-emitting unit works, collecting current data and voltage data on the power supply line through the sampling circuit, and acquiring electric energy data according to the current data and the voltage data, wherein the electric energy data is used for indicating the energy consumption condition of the light-emitting unit;
the metering subunit is configured to obtain status data according to the electric energy data, and control the communication unit to send the status data to a management device, so that the management device determines device status information of the lighting device according to the status data, where the device status information is used to indicate a health status of the lighting device;
the management device is used for acquiring the actual power parameter of the lighting device according to the electric energy data when the state data comprises the actual power parameter, and controlling the communication unit to send the actual power parameter to the management device, so that the management device acquires the rated power parameter of the lighting device, matches the actual power parameter with the rated power parameter to obtain a matching result, and determines the working state of the lighting device according to the matching result, wherein the working state comprises a normal state or an abnormal state;
the lighting device further comprises a light sensor arranged corresponding to the light emitting unit, the light sensor is electrically connected with the metering subunit, when the state data comprise the temperature of a PN junction in the light emitting unit, the metering subunit is further used for acquiring the luminous flux of the lighting device through sensing data acquired by the light sensor, controlling the communication unit to send the luminous flux to the management device, enabling the management device to acquire the luminous flux of the lighting device, and determining the remaining available time of the lighting device according to the temperature of the PN junction, the luminous flux and a light attenuation curve of the lighting device;
when the state data comprises the accumulated time length when the electric power on the power supply line exceeds a power threshold value, the metering subunit is used for sending the accumulated time length to the management equipment so that the management equipment acquires the total available time length of the lighting equipment, and determining the remaining available time length of the lighting equipment according to the accumulated time length and the total available time length;
still include among the lighting apparatus corresponding the temperature sensor that the luminescence unit set up, temperature sensor with the measurement subunit electrical property links to each other, works as status data includes in the instruction unit time quantum the electric quantity parameter of the electric quantity that consumes on the power supply line, the measurement subunit still is used for passing through the sensing data that temperature sensor gathered acquire first temperature and second temperature, and control the communication unit to management equipment sends first temperature with the second temperature, so that management equipment acquires first temperature and second temperature, first temperature is the unit time quantum beginsThe temperature of a PN junction in the light emitting unit is obtained at the moment, the second temperature is the temperature of the PN junction at the end moment of the unit time period, the quality, the specific heat capacity, the electric energy conversion efficiency and the light energy conversion efficiency of the lighting equipment are obtained, the electric energy conversion efficiency is used for indicating the efficiency of the lighting equipment for converting electric energy into energy in other forms, the light energy conversion efficiency is used for indicating the efficiency of the lighting equipment for converting electric energy into light energy, and the heat Q absorbed by the lighting equipment in the unit time period is calculated according to the first temperature, the second temperature, the quality and the specific heat capacity1Calculating the heat Q generated by the lighting device in the unit time period according to the electric quantity parameter, the electric energy conversion efficiency and the light energy conversion efficiency2Is mixing Q with2And Q1Is calculated as the amount of heat dissipated by the lighting device per unit time period.
4. A status information sending method, characterized in that the method is used in a metering subunit of a lighting device according to claim 3, the method comprising:
turning off a high-pass filter in the lighting equipment, and collecting current data and voltage data through a sampling circuit, wherein the sampling circuit is arranged on a power supply line between a power supply unit and a light-emitting unit of the lighting equipment;
acquiring the electric energy data according to the current data and the voltage data, wherein the electric energy data is used for indicating the energy consumption condition of the light-emitting unit;
acquiring state data according to the electric energy data;
controlling the communication unit to send the state data to a management device so that the management device can determine device state information of the lighting device according to the state data, wherein the device state information is used for indicating the health state of the lighting device;
when the status data includes an actual power parameter, the controlling the communication unit to send the status data to a management device, so that the management device determines device status information of the lighting device according to the status data, where the device status information is used to indicate a health status of the lighting device, including:
controlling the communication unit to send the actual power parameter to a management device so that the management device can acquire a rated power parameter of the lighting device, match the actual power parameter with the rated power parameter to acquire a matching result, and determine a working state of the lighting device according to the matching result, wherein the working state comprises a normal state or an abnormal state;
the lighting device further comprises a light sensor arranged corresponding to the light-emitting unit, and when the state data comprises the temperature of the PN junction in the light-emitting unit, the method further comprises the following steps:
acquiring the luminous flux of the lighting device through sensing data acquired by the light sensor, controlling the communication unit to send the luminous flux to the management device so that the management device acquires the luminous flux of the lighting device, and determining the remaining available time of the lighting device according to the temperature of the PN junction, the luminous flux and a light attenuation curve of the lighting device;
when the status data includes an accumulated length of time that the electrical power on the power supply line exceeds a power threshold, the method further includes:
sending the accumulated time length to the management equipment so that the management equipment obtains the total available time length of the lighting equipment, and determining the remaining available time length of the lighting equipment according to the accumulated time length and the total available time length;
the lighting apparatus further includes a temperature sensor provided corresponding to the light emitting unit, and when the status data includes the power amount parameter indicating the amount of power consumed on the power supply line for a unit time period, the method further includes: acquiring a first temperature and a second temperature through sensing data acquired by the temperature sensor, and controlling the communication unit to send the first temperature and the second temperature to the management equipment so that the management equipment acquires the first temperature and the second temperature, wherein the first temperature is the unitThe method comprises the steps of obtaining the mass, the specific heat capacity, the electric energy conversion efficiency and the light energy conversion efficiency of the lighting equipment, wherein the electric energy conversion efficiency is used for indicating the efficiency of the lighting equipment for converting electric energy into energy in other forms, the light energy conversion efficiency is used for indicating the efficiency of the lighting equipment for converting electric energy into light energy, and the heat Q absorbed by the lighting equipment in the unit time period is calculated according to the first temperature, the second temperature, the mass and the specific heat capacity1Calculating the heat Q generated by the lighting device in the unit time period according to the electric quantity parameter, the electric energy conversion efficiency and the light energy conversion efficiency2Is mixing Q with2And Q1Is calculated as the amount of heat dissipated by the lighting device per unit time period.
5. A status information transmitting apparatus, characterized in that the apparatus is used in a metering subunit of a lighting device according to claim 3, the apparatus comprising:
the data acquisition module is used for closing a high-pass filter in the lighting equipment and acquiring current data and voltage data through a sampling circuit, and the sampling circuit is arranged on a power supply circuit between a power supply unit and a light-emitting unit of the lighting equipment;
the electric energy data acquisition module is used for acquiring the electric energy data according to the current data and the voltage data, and the electric energy data is used for indicating the energy consumption condition of the light-emitting unit;
the state data acquisition module is used for acquiring state data according to the electric energy data;
the first sending module is used for controlling the communication unit to send the state data to a management device so that the management device can determine device state information of the lighting device according to the state data, wherein the device state information is used for indicating the health state of the lighting device;
the first sending module is configured to control the communication unit to send the actual power parameter to a management device when the state data includes the actual power parameter, so that the management device obtains a rated power parameter of the lighting device, matches the actual power parameter with the rated power parameter to obtain a matching result, and determines a working state of the lighting device according to the matching result, where the working state includes a normal state and an abnormal state;
the lighting device further comprises a light sensor arranged corresponding to the light-emitting unit, and the device further comprises:
a luminous flux obtaining module, configured to obtain, when the state data includes a temperature of a PN junction in the light emitting unit, a luminous flux of the lighting device through sensing data collected by the light sensor; the second sending module is used for controlling the communication unit to send the luminous flux to the management device, so that the management device determines the remaining available time of the lighting device according to the temperature of the PN junction, the luminous flux and the light attenuation curve of the lighting device;
the lighting device further comprises a temperature sensor arranged corresponding to the sending unit, and the device further comprises:
a temperature acquisition module configured to acquire a first temperature and a second temperature from sensing data acquired by the temperature sensor when the status data includes the electric quantity parameter indicating the electric quantity consumed on the power supply line within a unit time period, the first temperature being a temperature of a PN junction in the light emitting unit at a start time of the unit time period, and the second temperature being a temperature of the PN junction at an end time of the unit time period;
a third sending module, configured to control the communication unit to send the first temperature and the second temperature to the management device, so that the management device obtains the first temperature and the second temperature, obtains the quality, the specific heat capacity, the electric energy conversion efficiency, and the light energy conversion efficiency of the lighting device, where the electric energy conversion efficiency is used to indicate the efficiency of the lighting device to convert electric energy into energy in other forms, and the light energy conversion efficiency is used to indicate the lighting device to illuminateEfficiency of converting electrical energy to light energy by the lighting device; calculating the amount of heat Q absorbed by the lighting device in the unit time period according to the first temperature, the second temperature, the mass and the specific heat capacity1(ii) a Calculating the heat Q generated by the lighting equipment in the unit time period according to the electric quantity parameter, the electric energy conversion efficiency and the light energy conversion efficiency2(ii) a Will Q2And Q1Is calculated as the amount of heat dissipated by the lighting device per unit time period.
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