TW201727146A - Multi-stage temperature protection and automatic energy-saving intelligent LED street light and its control method - Google Patents

Abstract

The present invention discloses a multi-stage temperature protection and automatic energy-saving intelligent LED street light and its control method, which includes street lighting, temperature sensing module and control module. The temperature control module presets first and second preset temperature value for comparing with sensing temperature, controls the street light in a first degree brighter when the sensing temperature is lower than the first preset temperature value, controls the street light in a second degree brighter when the sensing temperature is between the first and second preset temperature value, and controls the street light in a third degree brighter when the sensing temperature is higher than the second preset temperature value, so as to achieve the effectiveness of protect and energy-saving.

Description

Intelligent LED street lamp with temperature multi-stage protection and automatic energy saving and control method thereof

The invention relates to a smart LED street lamp with temperature multi-stage protection and automatic energy saving and a brightness control method thereof, in particular to a street lamp technology capable of achieving multi-stage temperature protection and automatic energy-saving effect.

In order to improve the safety of the road at night, a set of street lights will be set at intervals on the side of the general road, and the main function of the street lamp is to illuminate the road, so that the people passing through the road can Clearly identify the condition of the road to avoid traffic accidents caused by poor visibility. Furthermore, in order to replace incandescent light bulbs or mercury lamps which are extremely energy-intensive and have poor illumination effects, and based on high-brightness lighting requirements, most of the conventional street lamps have adopted high-power and large-sized light-emitting diodes as light-emitting elements. Although high-power and large-size light-emitting diodes can achieve a certain degree of power saving and improve lighting effects; however, the heat source generated by lighting high-power and large-sized light-emitting diodes is difficult to dissipate heat from the lamp holder, resulting in The internal temperature of the lamp holder is too high to burn the LED, so that the circuit board covered with the LED must be frequently repaired and replaced, resulting in an increase in labor, material and time.

In order to solve the above-mentioned deficiencies, the related art has developed patents such as the "New Street Lights" of the Republic of China No. M408004, the "Maylight Heat Dissipation Structure" of the M405534, and the "Street Light Structure" of the M398060. These patents mainly apply a plurality of heat dissipating components or heat dissipating fins on the back surface of the circuit substrate covered with the light emitting diodes to illuminate the hair. The heat source generated by the photodiode is heat exchanged through the heat dissipating component or the heat dissipating fin. Although the patents can discharge the heat source to achieve a certain degree of heat dissipating effect; however, since the heat dissipating component or the heat dissipating fin is mostly installed in the lamp In the seat, it is impossible to directly exchange heat with the outside air, so that the heat dissipation effect does not reach the desired degree. Therefore, the light-emitting diode is still burnt due to overheating, which causes inconvenience in use and great troubles.

In addition, some manufacturers have changed the exposed parts of the lamp holder to the structure with heat-dissipating fins, in order to dissipate the high-temperature heat source through the exposed lamp holder, but the exposed heat-dissipating fin structure Due to long-term exposure, there will be dust accumulation, which will reduce the effect of heat dissipation. Therefore, the conventional structure will still burn the LEDs due to heat, thus causing inconvenience and great troubles in use. Therefore, how to develop a smart LED street light technology with multi-stage temperature protection and automatic energy saving has become a challenge and key research and development project that the relevant industries are eager to overcome.

In view of the fact that the structure of the conventional LED street lamp is not perfect, there is still a need for further improvement. Therefore, the creators of the present invention have continuously developed a set of techniques different from the above, and The present invention which is absent as described above can be overcome.

In order to solve the above problems, the first object of the present invention is to provide a smart LED street lamp with temperature multi-stage protection and automatic energy saving, which is mainly provided by temperature multi-stage protection and automatic energy-saving function setting, and can control the illumination brightness of the street lamp according to the temperature state. In order to achieve multi-stage temperature regulation and automatic energy saving. The technical means for achieving the first object of the present invention include a street lamp, a temperature sensing module and a control module. The control module has a first temperature preset value and a second temperature preset value, and the control module compares the temperature value with each temperature preset value, when the temperature value is lower than the first temperature When the preset value is used, the illumination module emits a bright illumination source; when the temperature value is between the first temperature preset value and the second temperature preset value, the illumination module emits a second bright illumination source. When the temperature value is higher than the preset value of the second temperature, the light emitting module emits a darker illumination source.

A second object of the present invention is to provide an intelligent LED street lamp that can select a diffusion effect or a concentrating illumination effect, and is mainly an illumination light source that emits a condensing effect when the human vehicle approaches, and emits a diffusion effect when the unmanned vehicle approaches. The illumination source increases the brightness of the vehicle by increasing the concentration of light to enhance the safety of the vehicle. The technical means for achieving the second object of the present invention includes a street lamp, a temperature sensing module and a control module. The control module has a first temperature preset value and a second temperature preset value, and the control module compares the temperature value with each temperature preset value, and when the temperature value is lower than the first temperature preset value, the light is emitted. The module emits a bright illumination source; when the temperature value is between the first temperature preset value and the second temperature preset value, the illumination module emits a second bright illumination source when the temperature value is higher than the second When the temperature is preset, the illumination module emits a darker illumination source. The light-emitting module comprises a lamp holder, a circuit board disposed on the lamp holder, a plurality of light-emitting elements densely disposed on the circuit board, and a lamp cover for covering an opening of the lamp holder. A light-transmitting plate is disposed between the circuit board and the lamp cover, and the light-transmitting plate is disposed in a staggered manner with a plurality of light-transmitting convex portions and a plurality of transparent flat portions, and the light-transmitting plate can be driven by a displacement driving means And performing a reciprocating displacement of the first position and the second position, when the displacement driving means is triggered by the control module, driving the light-transmitting plate to shift the first position, so that each of the light-emitting elements is aligned with each of the light-transmitting elements An illumination source that emits a light-emitting effect by the convex portion, and when the light-transmitting plate is displaced by the displacement driving means to the second position, each of the light-emitting elements is aligned with each of the light-transmitting plane portions to emit a diffusion effect Illumination source.

A third object of the present invention is to provide an illumination that can be based on the four seasons. Smart LED street lights that adjust the opening and closing time of each day with different speeds, mainly by time-time function, except that the street lights can be turned on and off at the correct time, and can be halved during dawn and dusk. The brightness of the light source of the street lamp is used to save energy. The technical means for achieving the third object of the present invention includes a street lamp, a temperature sensing module and a control module. The control module has a first temperature preset value and a second temperature preset value, and the control module compares the temperature value with each temperature preset value, and when the temperature value is lower than the first temperature preset value, the light is emitted. The module emits a bright illumination source; when the temperature value is between the first temperature preset value and the second temperature preset value, the illumination module emits a second bright illumination source when the temperature value is higher than the second When the temperature is preset, the illumination module emits a darker illumination source. The control module includes a timekeeping module, and the timekeeping module establishes a plurality of at least four sets of opening and closing time data set according to the length of the four seasons of sunshine, and each set of the opening and closing time data includes An opening period and a closing period, when the time counting mode reaches the opening period, the control module turns on the power supply circuit to cause the lighting module to emit an illumination source; when the closing period is reached, the control module Then disconnect the power supply circuit. The opening and closing time data further includes a half-opening period and a half-closing period, the half-opening period is located in a preset period before the opening period, and the half-closing period is located in a preset period before the closing period, when the time-keeping mode is The control module causes the illumination module to emit a half-bright illumination source by controlling the power supply loop when the half-on period and the half-off period are reached.

A fourth object of the present invention is to provide a smart LED street lamp brightness control method capable of adjusting the opening and closing time of a road street lamp according to the length of the four seasons, mainly by time timing and ZigBee communication, etc. Through the data transmission of ZigBee communication, the street lights on the road can more accurately open and close the illumination source at the correct time. In addition, In the staggered way, only half of the road lights can be illuminated in the staggered way at dusk and dusk, so as to save energy. The technical means for achieving the fourth object of the present invention includes a street lamp, a temperature sensing module and a control module. The control module has a first temperature preset value and a second temperature preset value, and the control module compares the temperature value with each temperature preset value, and when the temperature value is lower than the first temperature preset value, the light is emitted. The module emits a bright illumination source; when the temperature value is between the first temperature preset value and the second temperature preset value, the illumination module emits a second bright illumination source when the temperature value is higher than the second When the temperature is preset, the illumination module emits a darker illumination source. The ZigBee wireless communication unit further includes a plurality of ZigBee node modules disposed in each of the street lamps as the control module; and the plurality of street lamps are disposed on at least one of the roads; at least one of the The ZigBee node module establishes a time timing module, and the time timing module has a plurality of four sets of opening and closing time data set according to the length of the four seasons of the sunshine; and each of the sets of the opening and closing time data Setting an opening period and a closing period, when the time timing module determines that the opening period is reached in the timing, the ZigBee node module that establishes the timekeeping module wirelessly transmits the data of the opening period to each other to each other. In the ZigBee node module of the street lamp, each of the ZigBee node modules controls the respective power supply loops, so that each of the illumination modules emits an illumination source; when the timekeeping module determines that the shutdown period is reached in the timing The ZigBee node module that establishes the timekeeping module wirelessly transmits the data of the shutdown period to the other way by mutual transmission. The ZigBee node module, so that each of the respective ZigBee node module disconnect the power supply circuit. The opening and closing time data further includes a half-opening period and a half-closing period, the half-opening period is located in a preset period before the opening period, and the half-closing period is located in a preset period before the closing period, when the time-keeping mode is The timekeeping module is established when the group determines that the half-open period and the half-close period are reached in the timing. The ZigBee node module wirelessly transmits the data of the half-on period and the half-off period to each other of the ZigBee node modules of the street lamp, so that each of the ZigBee node modules controls the respective power supply. The loops, and in a staggered manner, illuminate the plurality of street lights on the road to emit an illumination source.

3‧‧‧ZigBee wireless communication unit

10‧‧‧ Street Lights

11‧‧‧light pole

12‧‧‧Power supply module

13‧‧‧Lighting module

130‧‧‧ lamp holder

131‧‧‧ circuit board

132‧‧‧Lighting elements

133‧‧‧shade

14‧‧‧Power supply circuit

15‧‧‧Light sensing switch

16‧‧‧Transparent board

160‧‧‧Lighting convex

161‧‧‧Lighting plane

17‧‧‧Displacement drive

170‧‧‧rails

171‧‧‧Acoustic

171a‧‧‧Acoustic rod

20‧‧‧Temperature Sensing Module

30‧‧‧Control Module

30a‧‧‧ZigBee Node Module

31‧‧‧Signal Processing Module

32‧‧‧PWM drive circuit

33‧‧‧Time Timing Module

40‧‧‧Car Identification Module

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded perspective view of a specific embodiment of the present invention.

Figure 2 is a schematic diagram of the combination of the specific implementation of the present invention.

Fig. 3 is a schematic view showing the implementation of the diffused light source of the present invention.

Fig. 4 is a schematic view showing the implementation of the condensing effect of the present invention.

Figure 5 is a block diagram showing the functional blocks of the basic circuit of the present invention.

Figure 6 is a block diagram showing the implementation of the functional blocks of the specific circuit of the present invention.

Fig. 7 is a schematic view showing the implementation of the staggered street lamp of the present invention.

FIG. 8 is a schematic diagram of a topology implementation of a ZigBee wireless communication unit of the present invention.

In order to allow the reviewing committee to further understand the technical features of the present invention and the technical means for achieving the object of the present invention, it will be described in detail with reference to the specific embodiments and drawings: please refer to FIG. 1~2 and FIG. The first embodiment of the first object of the present invention is achieved by the technical features of the street lamp 10, the temperature sensing module 20, and the control module 30. The street lamp 10 mainly includes a light pole 11 , a power supply module 12 , and one or two sets of light-emitting modules 13 disposed on the bent portion of the top end of the light pole 11 , and the light-emitting module 13 is electrically connected to the power supply module 12 . Into a power supply circuit 14. The temperature sensing module 20 is configured to sense the temperature state of the light emitting module 13 . Control mode The group 30 includes a signal processing module 31 (such as a microprocessor or other microcontroller) and a PWM driving circuit 32 electrically connected to the signal processing module 31. The signal processing module 31 is used to convert the processing temperature sensing module. The temperature sensing signal of the group 20 is a temperature value, and the signal processing module 31 includes at least two temperature preset values including a low temperature and a high temperature, and the temperature preset value includes a first temperature preset value and a second temperature preset. The value processing module 31 is configured to compare the temperature value with each preset temperature value, and when the temperature value is lower than the first temperature preset value, the higher conduction rate (ie, the wider conduction pulse wave) The control signal controls the on/off of the power supply circuit 14 to cause the illumination module 13 to emit a brighter illumination source; when the temperature value is between the first temperature preset value and the second temperature preset value, The control signal of the second highest power-on rate (that is, the second-wide conduction pulse wave) controls the on-off of the power supply circuit 14, so that the illumination module 13 emits a second bright illumination source, when the temperature value is higher than the second temperature preset value, The control circuit 14 is controlled by a control signal with a lower conduction rate (ie, a narrower conduction pulse). The on/off operation causes the illumination module 13 to emit a darker illumination source number, thereby achieving the effect of multi-stage temperature protection and automatic energy saving.

In a specific embodiment of the present embodiment, the light-emitting module 13 shown in FIG. 1 and FIG. 2 includes a lamp holder 130, a circuit substrate 131 disposed on the lamp holder 130, and a plurality of light-emitting elements 132 disposed on the circuit substrate 131. (such as a high power light emitting diode) and a lamp cover 133 for covering the lamp holder 130. The power supply circuit 14 shown in FIG. 5 is connected in series with an illumination sensing switch 15 for sensing the illuminance value of the road near the street lamp 10. The illumination sensing switch 15 has a built-in illumination preset value when the illuminance value is lower than the illumination pre-lighting value. When the value is set, the illumination sensing switch 15 turns on the power supply circuit 14 (that is, supplies power to the illumination module). When the illumination value is higher than the illumination preset value, the illumination sensing switch 15 turns off the power supply circuit 14 (ie, turns off the illumination). Module power supply).

Please refer to Figures 1~4 and Figure 6 for the second item of the present invention. In addition to the technical features of the first embodiment, the present embodiment further includes a vehicle identification module 40, which can be a human body infrared sensor or an environmental sensor. Or include an image capture device and an image recognition module. In the embodiment of the image recognition, the image capturing device is used to capture the initial image of the road near the street lamp 10, and then captures the real-time image of the road near the street lamp 10 in a monitoring manner, and the image recognition module (such as an image) The recognition software sets the initial image as the reference image, and sets the live image as the monitoring image to compare the image recognition of each of the monitoring images with the reference image. When the image comparison result produces a difference image, the output is output. The first trigger signal (ie, the vehicle passes by); otherwise, when the image comparison result has no difference image, the second trigger signal is output (ie, the unmanned vehicle passes). Furthermore, a light-transmitting plate 16 is disposed between the circuit board 131 and the lamp cover 133, and the light-transmitting plate 16 is disposed in a staggered manner with a plurality of light-transmitting convex portions 160 and a plurality of light-transmitting flat portions 161, and the light-transmitting plate 16 The reciprocating displacement of the first position and the second position can be performed by the driving of a displacement driving means 17.

In a specific operational embodiment, when the road vehicle passes near the street lamp 10, the vehicle identification module 40 generates a first trigger signal, and the displacement driving means 17 is triggered by the first trigger signal to drive the light transmission plate 16 to be displaced. To the first position, each of the light-emitting elements 132 is aligned with each of the light-transmitting convex portions 160 to emit a light-concentrating illumination source, as shown in FIG. 4; when the road vehicle is passing near the street light 10, the vehicle identification module 40 is The second trigger signal is generated, and the displacement driving means 17 can be driven by the second trigger signal to drive the light-transmitting plate 16 to be displaced to the second position, and the light-emitting elements 132 are aligned with the light-transmitting plane portions 161 to emit a diffusion effect. ,As shown in Figure 3.

Referring to FIGS. 3 and 4, the displacement driving means 17 includes a slide rail 170 and an actuator 171 located on the inner wall of the socket 130. The slide rail 170 is slidably fitted to the two side walls of the light-transmitting plate 16. The actuating member 171 has an actuating lever 171a coupled to the light transmissive plate 16; when the actuating lever 171a When stretched, the light transmissive plate 16 is moved along the slide rail 170 to the first position, and when the actuating lever 171a is retracted, the light transmissive plate 16 is moved along the slide rail 170 to the second position.

Referring to FIG. 6 , in order to achieve the third embodiment of the third object of the present invention, the embodiment includes a time timing module in the control module 30 in addition to the technical features of the first embodiment. 33. The timekeeping module 33 establishes a plurality of at least four sets of opening and closing time data set according to the length of the four seasons of sunshine. Each set of opening and closing time data includes an opening period and a closing period, and the time is counted. When the module 33 reaches the opening period in the timing, the control module 30 turns on the power supply circuit 14 to cause the illumination module 13 to emit an illumination source; when the shutdown period is reached, the control module 30 disconnects the power supply circuit 14 . In addition, the opening and closing time data further includes a half opening period and a half closing period, and the half opening period is located in a preset period (about 15 to 20 minutes; about dawn time) before the opening period, and the half is closed. The time period is a preset time period (about 15-20 minutes; about the twilight time period) before the closing time period. When the time timing module 33 reaches the half opening time and the half closing time period, the control module 30 The power supply circuit 14 is controlled to cause the illumination module 13 to emit an illumination source of half brightness.

Referring to FIG. 7 and FIG. 8 , in order to achieve the fourth embodiment of the fourth aspect of the present invention, the embodiment further includes a ZigBee wireless communication unit 3, in addition to the technical features of the first embodiment, the ZigBee wireless. The communication unit 3 includes a plurality of ZigBee node modules 30a disposed in each of the street lamps 10 as the control module 30. The plurality of street lamps 10 are disposed on at least one of the roads; and at least one of the ZigBee node modules 30a establishes a time. The module 33, the time timing module 33 has a plurality of at least four sets of opening and closing time data set according to the length of the four seasons of sunshine; and each set of opening and closing time data respectively sets an opening period and a closing During the time period, when the time timing module 33 determines that the opening period is reached in the timing, the time timing module 33 is established. The ZigBee node module 30a wirelessly transmits the data of the open period to the ZigBee node module 30a of the other street lights 10, and each ZigBee node module 30a controls the respective power supply circuits 14 to make the light-emitting modules 13 When the timekeeping module 33 determines that the shutdown period is reached in the timing, the ZigBee node module 30a of the establishment timekeeping module 33 wirelessly transmits the data of the shutdown period to the ZigBee node of the other streetlights 10 in a mutual transmission manner. In the module 30a, each ZigBee node module 30a is disconnected from the respective power supply circuit 14.

Specifically, the opening and closing time data further includes a half-opening period and a half-closing period, wherein the half-opening period is a preset period before the opening period (about 15 to 20 minutes; about a dawn period); the half-closing period is closed. A preset time period before the time period (about 15-20 minutes; about the twilight time period), when the time timing module 33 determines that the half-open period and the half-close period are reached in the timing, the ZigBee node module of the time timing module 33 is established. The group 30a wirelessly transmits the data of the half-on period and the half-off period to the ZigBee node module 30a of the other street lamps 10, so that each ZigBee node module 30a controls the respective power supply circuits 14 and interleaves. The interval is such that half of the plurality of street lights 10 on the road are illuminated to emit an illumination source, as shown in FIG.

Thus, by the above description of the specific embodiments, the present invention does have the following features:

1. The invention can be set by the functions of temperature multi-stage protection and automatic energy saving, and can control the illumination brightness of the street lamp according to the temperature state, so as to realize the multi-stage temperature adjustment and the automatic energy saving effect.

2. The invention can select the illumination effect of diffusion or concentrating, and can emit the illumination source of the concentrating effect when the vehicle is approaching, and when the unmanned vehicle approaches, the illumination source emitting the diffusion effect, by increasing the concentrating light. Increase the brightness to improve the safety of the car.

3. The present invention can adjust the opening and closing time of the street lamp according to the length of the four seasons, mainly by the function of time counting, in addition to opening and closing the street lamp in a more precise time period, and at dawn At dusk, the light source brightness of the street light is reduced to save energy.

4. The invention can adjust the opening and closing time of the road lamp according to the difference of the length of the four seasons, mainly by the function of the time and ZigBee communication, and the data transmission through the ZigBee communication, so that the street lights on the road The illumination source can be turned on and off in a more precise time period. In addition, only half of the road lights can be illuminated in a staggered manner during dawn and dusk to save energy.

The above is only a possible embodiment of the present invention, and is not intended to limit the scope of the patents of the present invention, and the equivalent implementations of other changes according to the contents, features and spirits of the following claims should be It is included in the patent of the present invention. The invention is specifically defined in the structural features of the request item, is not found in the same kind of articles, and has practicality and progress, has met the requirements of the invention patent, and has filed an application according to law, and invites the bureau to approve the patent according to law to maintain the present invention. The legal rights of the applicant.

10‧‧‧ Street Lights

11‧‧‧light pole

13‧‧‧Lighting module

130‧‧‧ lamp holder

131‧‧‧ circuit board

132‧‧‧Lighting elements

133‧‧‧shade

16‧‧‧Transparent board

160‧‧‧Lighting convex

161‧‧‧Lighting plane

170‧‧‧rails

Claims (9)

A smart LED street lamp with temperature multi-stage protection and automatic energy saving, comprising: a street lamp, comprising a light pole, a power supply module and at least one light-emitting module disposed at a top end of the light pole, and the light-emitting module and The power supply module is electrically connected to a power supply circuit; at least one temperature sensing module is configured to sense a temperature state of the light emitting module; and a control module is configured to convert and process the temperature sensing module The temperature sensing signal is a temperature value, and the control module includes at least two temperature preset values including a low temperature and a high temperature, and the temperature preset value includes a first temperature preset value and a second temperature preset value. The control module is configured to compare the temperature value with each preset value of the temperature. When the temperature value is lower than the preset value of the first temperature, the control signal of the higher power rate is used to control the power supply loop. Turning on and off, causing the light emitting module to emit a brighter illumination source; when the temperature value is between the first temperature preset value and the second temperature preset value, the control signal with a second highest power rate is To control the on and off of the power supply circuit, so that the light emitting module emits Bright illumination light source, when the temperature value is higher than the second predetermined temperature value, and at low duty factor of the control signal to control on and off of the power supply circuit, so that the light-emitting module emits darker light source. The smart LED street lamp with temperature multi-stage protection and automatic energy saving according to claim 1, wherein the light-emitting module comprises a lamp holder, a circuit substrate disposed on the lamp holder, and a plurality of light-emitting materials disposed on the circuit substrate And a light cover for covering an opening of the socket. The intelligent LED street lamp with temperature multi-stage protection and automatic energy saving according to claim 2, further comprising a one-person vehicle identification module, wherein the light-transmissive plate is interposed between the circuit substrate and the lamp cover The plurality of transparent convex portions and the plurality of transparent flat portions arranged in an interlaced manner, the transparent transparent plate can be driven by a displacement driving means to perform reciprocating displacement of the first position and the second position, when the street lamp When the vehicle passes by the nearby road, the vehicle identification module generates a first trigger signal, and the displacement driving means is triggered by the first trigger signal to drive the light-transmitting plate to be displaced to the first position, so that each of the light-emitting elements An illumination source that emits a light-concentrating effect is aligned with each of the light-transmitting convex portions; when the road-unmanned vehicle passes near the street lamp, the vehicle identification module generates a second trigger signal, and the displacement driving means can be subjected to the second trigger The illumination of the light-transmitting plate is driven to the second position by the triggering of the signal, and each of the light-emitting elements is aligned with each of the light-transmitting plane portions to emit a diffusing effect. The intelligent LED street lamp with temperature multi-stage protection and automatic energy saving according to claim 3, wherein the displacement driving means comprises a sliding rail and an unifying moving member located in the lamp holder, and the sliding rail is provided for the two side walls of the transparent plate Embedding sliding, the actuating member has an actuating rod coupled to one end of the light transmissive plate, and when the actuating rod is extended, the light transmissive plate moves along the sliding rail to the first position, when the actuating When the rod is retracted, the light transmissive plate moves along the slide rail to the second position. The intelligent LED street lamp with temperature multi-stage protection and automatic energy saving according to claim 1, wherein the control module comprises a time timing module, and the time timing module is established with a plurality of sunshine lengths according to four seasons. Setting at least four sets of opening and closing time data, each of the opening and closing time data includes an opening period and a closing period, and when the time counting mode is timed to reach an opening period, the control module turns on the power supply circuit The illumination module emits an illumination source; when the off period is reached, the control module disconnects the power supply loop. The intelligent LED street lamp with temperature multi-stage protection and automatic energy saving according to claim 5, wherein the opening and closing time data further comprises a half-opening period and a half-closing period, wherein the half-opening period is a preset before the opening period During a period of time, the half-close period is a preset period of time before the closing period, and when the time aging is timed to reach the half-open period and the half-close period, the control module controls the power supply loop The illumination module emits half brightness Bright light source. The smart LED street lamp with temperature multi-stage protection and automatic energy saving according to claim 1, wherein the power supply circuit is connected in series with an illumination sensing switch for sensing the illuminance value of the road near the street lamp, and the illumination sensing switch is Establishing a light preset value, when the illuminance value is lower than the preset value of the light, the light sensing switch turns on the power supply loop, and when the illuminance value is higher than the preset value of the light, the light sensing switch is Disconnect the power supply circuit. A brightness control method for a smart LED street lamp with temperature multi-stage protection and automatic energy saving, comprising: providing a smart LED street lamp according to claim 1; and at least one ZigBee wireless communication unit, wherein the ZigBee wireless communication unit a plurality of ZigBee node modules disposed on each of the street lamps as the control module; a plurality of the street lamps are disposed on at least one of the roads; and at least one of the ZigBee node modules establishes a timekeeping module, the timekeeping module There are a plurality of four sets of opening and closing time data set according to the length of the four seasons; and each of the set of opening and closing time data is set to an opening period and a closing period, when the time timing module is timed When the middle determination reaches the open period, the ZigBee node module that establishes the timekeeping module wirelessly transmits the data of the open period to the other ZigBee node module of the street light in a mutual transmission manner, so that each of the ZigBee nodes The module controls the respective power supply loops, so that each of the illumination modules emits an illumination source; when the timekeeping module determines that the timing is reached In the closed time period, the ZigBee node module that establishes the timekeeping module wirelessly transmits the data of the shutdown period to the other ZigBee node module of the street lamp by mutual transmission, so that each ZigBee node module is broken. Open the respective power supply circuits. The brightness control method of the smart LED street lamp according to claim 8, wherein the opening and closing time data further comprises a half open period and a half closed period, wherein the half open period is located in a preset period before the open period, the half The closing time period is a preset time period before the closing time period. When the time timing module determines that the half opening time period and the half closing time period are reached in the timing, the ZigBee node module that establishes the time timing module will The data of the half-on period and the half-off period are wirelessly transmitted to each other of the ZigBee node modules of the street lamp, so that each of the ZigBee node modules controls the respective power supply loops and are arranged in an interlaced manner. Half of the plurality of street lights on the road illuminate to emit an illumination source.