CN203744069U - Energy-saving street lamp - Google Patents

Abstract

The utility model provides an energy-saving street lamp, which comprises a bulb, a lamp post, a photosensitive sensor, a light control module, a clock control module and a controller. The light pole is a hollow structure. The photosensitive sensor is arranged on the light pole to detect the light intensity of the environment where the bulb belongs, and obtain a detection signal corresponding to the light intensity. The light control module includes: a controllable switch and a voltage dividing resistor, wherein the voltage dividing resistor is connected in parallel with the controllable switch after being connected in series with the photosensitive sensor. And the first end of the controllable switch is connected with one end of the light bulb, and the other end of the light bulb is connected with the voltage dividing resistor. The second end of the controllable switch is connected with the photosensitive sensor. The control end of the controllable switch is connected to the common end of the voltage dividing resistor and the photosensitive sensor. The clock control module includes a clock and a sun rise and sunset processor. The controller is electrically connected to the controllable switch in the light control module and the clock control module respectively, receives the signal output by the clock control module, and controls the working state of the controllable switch according to the signal.

Description

energy saving street lamp

technical field

The utility model relates to the lighting field, in particular to an energy-saving street lamp.

Background technique

Street lamps are one of the basic facilities of the city. With the progress of urban modernization, the control of street lamps is also developing in the direction of automation. The development of radio technology and computer technology provides complete technical conditions for the automatic control of street lamps.

The traditional control methods for turning on and off street lights are: manual control and clock control. Manual control is a manual way to control the switch lights by controlling the power supply. At present, this control method is still used in some backward towns, but the control accuracy of this control method is directly proportional to the hard work of the street lamp manager. Clock control is a relatively common control method at present. Relying on the programming clock, the time of turning on and off the lights throughout the year is preset in the clock, and the street light switch is controlled. It can ensure that the power is cut off during the day and the power is transmitted at night, but some chime clocks cannot automatically delay or turn on and off lights in advance according to seasonal changes, and must be adjusted manually every month; and in rainy weather, it gets dark early and dawn late, and the clock control method is difficult. fulfil requirements. In addition, there are accumulated errors due to the clock. Therefore, the clock control must constantly adjust the time and adjust the clock in time to avoid the phenomenon that the lights are on during the day and off at night.

In addition, the operation status and operation results of existing street lamps cannot be monitored, recorded and counted in a centralized manner, especially the monitoring of a single street lamp cannot be realized. Whether the equipment is operating correctly and whether it is working normally cannot be known in time. Only a large number of staff members conduct manual inspections and citizens call for repairs to understand the equipment that is working abnormally. With the development of urban roads, there are more and more street lights. Manual inspection not only increases labor costs, but also has a long inspection cycle and low efficiency in troubleshooting.

Utility model content

In order to overcome the problem of low control precision of the existing street lamps, the utility model provides an energy-saving street lamp.

In order to achieve the above purpose, the utility model provides an energy-saving street lamp, which includes a light bulb, a light pole, a photosensitive sensor, a light control module, a clock control module and a controller. The light pole is a hollow structure. The photosensitive sensor is arranged on the light pole to detect the light intensity of the environment where the bulb belongs, and obtain a detection signal corresponding to the light intensity. The light control module is electrically connected to the photosensitive sensor and the light bulb respectively, and processes the detection signal obtained by the photosensitive sensor. The light control module includes: a controllable switch and a voltage divider resistor. switch. And the first end of the controllable switch is connected with one end of the light bulb, and the other end of the light bulb is connected with the voltage dividing resistor. The second end of the controllable switch is connected with the photosensitive sensor. The control end of the controllable switch is connected to the common end of the voltage dividing resistor and the photosensitive sensor. The clock control module includes a clock and a sun rise and sunset processor. The controller is electrically connected to the controllable switch in the light control module and the clock control module respectively, receives the signal output by the clock control module, and controls the working state of the controllable switch according to the signal.

In an embodiment of the present invention, the controllable switch is a thyristor or a transistor.

In an embodiment of the present invention, the sunrise and sunset processor includes a time processor and a memory, and the time processor is electrically connected to the clock and the memory respectively.

In an embodiment of the present invention, the energy-saving street lamp further includes a power line carrier communication module, the power line carrier communication module is electrically connected to the controller, and the controller performs data communication with the control terminal through the power line carrier communication module.

In an embodiment of the present invention, a horizontal light-shielding sheet is arranged above the photosensitive sensor.

In an embodiment of the present invention, the photosensitive sensor is a photoresistor, and its bright resistance is less than 2 kilohms, and its dark resistance is greater than 1 megaohm.

In an embodiment of the present invention, the photosensitive sensor is an unsealed photoresistor with a model number of MG45.

In an embodiment of the present invention, the voltage dividing resistor includes a first resistor and a second resistor, and the second resistor is of an adjustable impedance type.

In an embodiment of the present invention, the light control module further includes a diode, and the anode of the diode is connected to the power supply, and the cathode is connected to the voltage dividing resistor.

To sum up, the utility model sets the sun rise and sunset processor in the clock control module, and the user can accurately calculate the sun rise and sunset time of the day by inputting the longitude and latitude of the geographical location of the street lamp and the calculation day, and can It avoids the lighting deviation caused by the different positions of the street lamps and the changes of the four seasons, and greatly improves the control accuracy of the street lamps. And further, in order to avoid the influence of the weather, the utility model is also equipped with a photosensitive sensor and a light control module to assist the clock control module to control the light bulb, so as to avoid the problem of insufficient lighting caused by the street lights not turning on after the sun rises in foggy days .

In addition, by setting up the power line carrier communication module, the energy-saving street lamp can communicate with the control terminal, not only can set the longitude, latitude and calculation date for the street lamp uniformly, but also realize the unified monitoring of the street lamp, which not only facilitates the timely maintenance of the pipeline personnel As well as management, the inspection cost is also greatly reduced.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

Fig. 1 is a schematic structural diagram of an energy-saving street lamp provided by an embodiment of the present invention.

FIG. 2 is a specific circuit diagram of the light control module in the energy-saving street lamp provided by an embodiment of the present invention.

Detailed ways

Fig. 1 is a schematic structural diagram of an energy-saving street lamp provided by an embodiment of the present invention. FIG. 2 is a specific circuit diagram of the light control module in the energy-saving street lamp provided by an embodiment of the present invention. Please refer to Figure 1 and Figure 2 together.

The energy-saving street lamp provided by the utility model includes a bulb 1 , a light pole 2 , a photosensitive sensor 3 , a light control module 4 , a clock control module 5 and a controller 6 . The light pole 2 is a hollow structure. The photosensitive sensor 3 is arranged on the light pole 2, and is used to detect the light intensity of the environment where the bulb 1 belongs to, and obtain a detection signal corresponding to the light intensity. The light control module 4 is electrically connected to the photosensitive sensor 3 and the light bulb 1 respectively, and processes the detection signal obtained by the photosensitive sensor 3. The light control module 4 includes: a controllable switch 41 and a voltage dividing resistor 42, wherein the voltage dividing resistor 42 is connected to the photosensitive sensor After the sensors 3 are connected in series, they are connected in parallel to the controllable switch 41 . And the first end of the controllable switch 41 is connected with one end of the light bulb 1 , and the other end of the light bulb 1 is connected with the voltage dividing resistor 42 . The second end of the controllable switch 41 is connected with the photosensitive sensor 3 . The control terminal of the controllable switch 41 is connected to the common terminal of the voltage dividing resistor 42 and the photosensitive sensor 3 . The clock control module 5 includes a clock 52 and a sun rise and sunset processor 51 . The controller 6 is electrically connected to the controllable switch 41 in the light control module 4 and the clock control module 5 , receives the signal output by the clock control module 5 , and controls the working state of the controllable switch 41 according to the signal. Wherein, the sunrise and sunset processor 51 includes a time processor 511 and a memory 512 .

Further, the photosensitive sensor 3 is set as a photoresistor, the bright resistance is less than 2 kilohms, and the dark resistance is greater than 1 megaohm. In this embodiment, the type of the photosensitive sensor 3 is an unsealed photoresistor of MG45. However, the present utility model does not make any limitation thereto.

The light pole 2 is set as a hollow structure, and the electric wires for power supply and signal transmission of the light bulb 1 can be arranged in the hollow light pole 2, which effectively prevents interference and aging of the electric wires by the external environment, and prolongs the service life of the electric wires.

In terms of specific control, the energy-saving street lamp provided by the utility model adopts a combination of light control and clock control, wherein the clock control is the main method and the light control is the auxiliary method. In terms of clock control, the user sets the calculation date and the longitude and latitude of the street lamp location into the memory 512 through an input device such as a keyboard, and the memory 512 provides the calculation date and the longitude and latitude of the street lamp location to the time processor 511 . The time processor 511 first calculates the number of days from January 1, 2000, GMT, to the calculation day according to the calculation day, and obtains the century number according to the number of days. Then calculate the sun's mean ecliptic longitude, mean anomaly angle, ecliptic longitude, deviation, and the inclination of the earth based on the number of centuries. Finally, the time processor 511 calculates the solar angle of Greenwich Mean Time based on the above data, and calculates the sunrise and sunset time of the destination calculation day according to the solar angle of Greenwich Mean Time and the longitude and latitude of the destination, and provides the calculated time to the control Device 6. The controller 6 outputs a signal to adjust the time of the clock 52 . When the natural time reaches the set value of the clock 52, the controller receives the signal provided by the clock 52, and controls the state of the controllable switch 41 according to the signal. In this way, the clock control time can be adjusted according to different geographical locations and seasonal changes, which greatly improves the control accuracy and avoids the appearance of constant lights or blind lights. It can not only effectively play the role of lighting, but also play a role in energy saving. In this embodiment, the time processor 512 can be composed of an adder, a multiplier and a single-chip microcomputer AT89C51, and the memory 511 is an electrically erasable programmable read-only memory, and the clock 52 can be realized using the crystal oscillator that the AT89C51 single-chip microcomputer carries. . However, the present utility model does not make any limitation thereto.

However, due to the influence of the weather, such as cloudy or foggy days, the light bulb is turned off under the control of the clock control module 5 after the sun rises. At this time, due to the influence of rainwater and fog, the brightness of the environment where the street lamp is located is low, seriously affecting pedestrians and vehicles on the road. In order to avoid this situation, the light control module 4 is set to fine-tune the clock control module 5 . Specific working method: the photosensitive sensor 3 detects the light intensity of the environment where the bulb is located in real time, and transmits the light intensity signal to the light control module 4 . If the light intensity is sufficient after the sun rises, affected by the light, the photosensitive sensor 3 is in a low-resistance state, and the partial pressure generated thereon is small, so the control terminal of the controllable switch 41 is at a low level, and the controllable switch 41 is in a cut-off state. , Bulb 1 is off. On the contrary, due to the influence of heavy fog or rain after the sun rises, the ambient light intensity of the street lamp is low. At this time, the light irradiated on the photosensitive resistor is weak, and the photosensitive sensor 3 presents a high resistance and a large voltage division ratio, that is The control end of the control end of the controllable switch 41 is at a high level, which can provide a higher positive trigger voltage, so that the controllable switch 41 is turned on, and the bulb is in a lighted state, which makes up for the clock control module 5 that is affected by the weather. The deviation makes the lighting and extinguishing of street lights more in line with the needs of pedestrians and vehicles.

In addition, in order to improve the voltage dividing accuracy of the voltage dividing resistor 42 and the effect of matching different photosensitive sensors 3 , the voltage dividing resistor 42 is set to include a first resistor 421 and a second resistor 422 , and the second resistor 422 is adjustable. In this embodiment, both the first resistor 421 and the second resistor 422 are carbon film resistors. However, the present utility model does not make any limitation thereto.

Further, in order to prevent the impact of the surge pulse generated by external interference on the photosensitive sensor 3 and the controllable switch 41, the light control module 4 also includes a diode 43, and the positive pole of the diode 43 is connected to the power supply, and the negative pole is connected to the voltage dividing resistor 42 connected. When external interference generates a large current pulse, the diode 43 is turned on and absorbs a large amount of pulse current to ensure the normal operation of the photosensitive sensor 3 and the controllable switch 41 .

Further, the energy-saving street lamp also includes a power line carrier communication module 7, the power line carrier communication module 7 is electrically connected to the controller 6, and the controller 6 performs data communication with the control terminal through the power line carrier communication module 7. The power line carrier communication module 7 utilizes the power line for data transmission to realize data communication between the street lamp and the control terminal. The management personnel can know which street lamp is faulty through the control terminal, which greatly shortens the maintenance time of the fault. At the same time, the management personnel do not need to carry out long-term patrols, which saves the labor cost of patrolling.

Further, since the photosensitive sensor 3 is arranged on the light pole 2 . In the lighted state, in order to prevent the brightness of the bulb 1 from affecting the detection of the photosensitive sensor 3 , a horizontal shading sheet is arranged above the photosensitive sensor 3 .

To sum up, the utility model sets the sunrise and sunset processor 51 in the clock control module 5, and the user can input the longitude and latitude of the geographic location of the street lamp and the calculation day through the input device to accurately calculate the sunrise and sunset of the calculation day. The time can avoid the lighting deviation caused by the different positions of the street lamps and the changes of the four seasons, and greatly improve the control accuracy of the street lamps. And further, in order to avoid the influence of the weather, the utility model is also equipped with a photosensitive sensor 3 and a light control module 4 to assist the clock control module 5 to control the light bulb, so as to avoid the lighting caused by the street lights not turning on after the sun rises in foggy days Insufficient problem.

In addition, by setting the power line carrier communication module 7, the energy-saving street lamps can communicate with the control terminal. Not only can the longitude, latitude and calculation day be uniformly set for the street lamps, but also the unified monitoring of the street lamps can be realized, which is not only convenient for the pipeline personnel to timely Maintenance and management, while greatly reducing inspection costs.

Although the utility model has been disclosed above by the preferred embodiments, it is not intended to limit the utility model, and any skilled person can make some changes and modifications without departing from the spirit and scope of the utility model, so The protection scope of the present utility model should be as the criterion according to the protection scope required by the claims.

Claims (9)

1. an energy-conserving road lamp, is characterized in that, comprising:

Bulb;

Lamp stand, described lamp stand is hollow structure;

Clock module, described clock module comprises that clock and day rise sunset processor;

Light sensor, is arranged at described lamp stand, detects the light intensity of the affiliated environment of described bulb, obtains the detection signal corresponding with described light intensity;

Light-operated module, described light-operated module is electrically connected respectively described light sensor and bulb, the detection signal that described light sensor is obtained is processed, described light-operated module comprises: gate-controlled switch and divider resistance, wherein, described divider resistance is parallel to described gate-controlled switch after connecting with described light sensor; And the first end of described gate-controlled switch is connected with one end of described bulb, the other end of described bulb is connected with described divider resistance; The second end of described gate-controlled switch is connected with described light sensor; The control end of described gate-controlled switch is connected in the common port of described divider resistance and described light sensor;

Controller, is electrically connected respectively gate-controlled switch and described clock module in described light-operated module, receives the signal of described clock module output, and according to the duty of gate-controlled switch described in this signal controlling.

2. energy-conserving road lamp according to claim 1, is characterized in that, described gate-controlled switch is controllable silicon or transistor.

3. energy-conserving road lamp according to claim 1, is characterized in that, within described day, rises sunset processor bag time processor and memory, and described time processor is electrically connected respectively described clock and memory.

4. energy-conserving road lamp according to claim 1, it is characterized in that, described energy-conserving road lamp also comprises Power Line Carrier Communication Module, and described Power Line Carrier Communication Module is electrically connected described controller, and described controller carries out data communication by described Power Line Carrier Communication Module and control terminal.

5. energy-conserving road lamp according to claim 1, is characterized in that, the top of described light sensor is provided with a level shadow sheet.

6. energy-conserving road lamp according to claim 1, is characterized in that, described light sensor is photo resistance, and its bright resistance is less than 2 kilohms, and resistance in the dark is greater than 1 megohm.

7. energy-conserving road lamp according to claim 5, is characterized in that, described light sensor is that model is the non-tight type photo-resistor of MG45.

8. energy-conserving road lamp according to claim 1, is characterized in that, described divider resistance comprises the first resistance and the second resistance, and described the second resistance is impedance adjustable type.

9. energy-conserving road lamp according to claim 1, is characterized in that, described light-operated module also comprises a diode, and the positive pole of described diode is connected with power supply, and negative pole is connected with described divider resistance.