An IoT lighting controller with positioning function and power detection

Abstract

The utility model discloses an Internet of Things lighting controller with a positioning function and electric energy detection, comprising a networking control module and an electronic switch connected to the networking control module, the networking control module closes the electronic switch by outputting a high level, one end of the electronic switch is connected to a power module, the other end of the electronic switch is connected to a load, the networking control module is connected to a positioning module, the positioning module provides positioning information, the networking control module is also connected to a metering module, and the metering module is used to detect voltage information and current information; the utility model improves the problem that traditional controllers can only be controlled locally, and the position of the controller is located by setting a positioning module, thereby achieving accurate identification of the position of the controller, ensuring the accuracy of remote control of the lighting controller, and the current of the load can be turned on and off by the electronic switch, and the light can be turned on and off at a scheduled time in combination with a clock unit, thereby avoiding the problem of wasting electricity caused by turning on the light too early and the problem of poor experience caused by turning on the light too late.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting control, and in particular to an Internet of Things lighting controller with a positioning function and electric energy detection. Background Art

[0002] A lighting controller is a device that controls the on / off of LEDs. The device controls the LEDs through relays. Users only need to connect the LED bus to be controlled to the lighting controller to control multiple LEDs. The lighting controller can set a timer to turn on or off the relay at a specific time, thereby controlling the on / off of the LEDs, avoiding the inconvenience of having to go to the site every time the lights are turned on or off.

[0003] The above scheme is a traditional lighting controller, which adopts local operation, that is, the time setting needs to be set at the installation site. This method will require resetting the time on site every time the season changes, because the change of seasons will cause changes in the sunrise and sunset times. If the same time period is used, it will cause many inconveniences in actual use. For example, if the summer time period is always used, the lights will not be turned on when it is already dark in winter; if the winter time period is always used, the lights will be turned on when it is still bright in summer, which will lead to a waste of electricity.

[0004] For example, Chinese patent CN201320156730.1 discloses an energy-saving lighting controller, which provides multiple loads with different voltages of a power supply, so that the power supply of the loads without transition time is interrupted, including a power switch circuit, a current detection circuit and a control circuit. The controller cannot perform remote accurate positioning control and still requires on-site control. Summary of the invention

[0005] The utility model mainly solves the problem that lighting controllers in the existing technology cannot be remotely and accurately controlled; it provides an Internet of Things lighting controller with a positioning function and power detection, which can realize accurate control of lighting switches after providing precise positioning information, avoiding the need to set up the controller on site every time the season changes, thereby reducing power waste.

[0006] The above technical problems of the utility model are mainly solved by the following technical solutions: an Internet of Things lighting controller with a positioning function and power detection, comprising a networking control module and an electronic switch connected to the networking control module, the networking control module closes the electronic switch by outputting a high level, one end of the electronic switch is connected to a power module, and the other end of the electronic switch is connected to a load, the networking control module is connected to a positioning module, the positioning module provides positioning information, and the networking control module is also connected to a metering module, and the metering module is used to detect voltage information and current information.

[0007] Preferably, the networking control module is a 4G Cat-1 module. The module is an OPEN CPU solution module. The so-called OPEN CPU solution means that the module is not only used as a networking module, but also as a control core. The use of this solution can save the MCU and its peripheral circuits, making the circuit simpler and the cost lower.

[0008] Preferably, the electronic switch is a normally open relay. This type of relay is normally open at ordinary times, and the circuit does not output voltage. When the magnetic coil inside the relay is energized, the relay is closed, and the circuit outputs voltage at this time. The relay is controlled by a transistor in the circuit, and the transistor is connected to the networking control module. When the user issues a light-on command on the platform, the networking control module outputs a high level, so that the transistor is in a saturated state. The saturation of the transistor energizes the relay, and the relay will close after power-on. After the relay is closed, the load is turned on, and the remote load-on command is completed. When the user issues a light-off command on the platform, the networking control module outputs a low level, and the transistor is in a cut-off state. The cut-off of the transistor makes it impossible for the relay circuit to form a path. When the relay has no electricity, it is in a normally open state, there is no output voltage, and the load is turned off, and the remote load-off command is completed.

[0009] Preferably, the power module comprises an ACDC unit, a DCDC unit and an LDO unit, the ACDC unit is connected to the DCDC unit and the LDO unit respectively, the DCDC unit is connected to the networking control module, and the LDO unit is connected to the electronic switch, the positioning module and the metering module respectively.

[0010] Preferably, the networking control module is provided with a clock unit.

[0011] Preferably, the normally open relay comprises a transistor and a relay unit, the control end of the transistor is connected to the networking control module, and the transistor is connected to the relay unit.

[0012] Preferably, the LDO unit comprises a first LDO circuit and a second LDO circuit, wherein the first LDO circuit is connected to the electronic switch, and the second LDO circuit is connected to the positioning module and the metering module respectively.

[0013] The beneficial effects of the utility model are: it improves the problem that the traditional controller can only control locally, locates the position of the controller by setting a positioning module, realizes accurate identification of the position of the controller, ensures the accuracy of remote control of the lighting controller, and can turn on and off the current of the load through an electronic switch, and can perform timed switching of the lights in combination with a clock unit to avoid the problem of wasting electricity caused by turning on the lights too early and the poor experience caused by turning on the lights too late. The metering module effectively detects the power consumption of the load, realizes effective control of electric energy, and reduces power waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a circuit diagram of the networking control module of the utility model.

[0015] Figure 2 It is a circuit diagram of the positioning module of the utility model.

[0016] Figure 3 It is a circuit diagram of the ACDC unit of the utility model.

[0017] Figure 4 It is a circuit diagram of a first LDO circuit of the utility model.

[0018] Figure 5 It is a circuit diagram of the DCDC unit of the utility model.

[0019] Figure 6 It is a circuit diagram of the second LDO circuit of the utility model.

[0020] Figure 7 It is a circuit diagram of the electronic switch of the utility model.

[0021] Figure 8 It is a circuit diagram of the metering module of the utility model. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0023] Example: Figure 1-8 As shown, an Internet of Things lighting controller with a positioning function and electric energy detection includes a networking control module, an electronic switch, a positioning module, a power module and a metering module. The electronic switch, the positioning module and the metering module are all connected to the networking control module. The networking control module closes the electronic switch by outputting a high level. One end of the electronic switch is connected to the power module, and the other end of the electronic switch is connected to the load. The positioning module provides positioning information, and the metering module is used to detect voltage information and current information.

[0024] The positioning module is a full-constellation positioning and navigation module compatible with BDS / GNSS. The module supports single-system positioning of BDS / GPS / GLONASS satellite navigation systems, as well as multi-system joint positioning in any combination, and supports QZSS and SBAS systems. The positioning module communicates with the networking control module through the serial port. The networking control module transmits the interactive commands to the positioning module, and the positioning module outputs the current positioning information to the networking control module, and the device can report the positioning information.

[0025] The networking control module is a 4G Cat-1 module, including a 4G circuit and its SIM card peripheral circuit, an indicator light control circuit, a clock unit, and a USB circuit. This module is an OPEN CPU solution module. The so-called OPEN CPU solution means that the module is not only used as a networking module, but also as a control core. This solution can eliminate the MCU and its peripheral circuits, making the circuit simpler and the cost lower.

[0026] The electricity metering chip is a calibration-free energy metering chip with a built-in clock. The chip integrates two high-precision Sigma-Delta ADCs, reference voltage, power management and other analog circuit modules, as well as digital signal processing circuits for processing electrical parameters such as active power, current and voltage RMS. The electricity metering chip communicates with the 4G Cat-1 module through the SPI interface. The 4G Cat-1 module sends instructions to the electricity metering chip. The electricity metering chip detects voltage and current data through various internal circuits, and then transmits the data to the 4G Cat-1 module through the SPI interface. After that, users can view the power consumption of the connected load on the IoT platform.

[0027] The electronic switch is a normally open relay, including a transistor and a relay unit. The control end of the transistor is connected to the networking control module, and the transistor is connected to the relay unit. Figure 7 As shown, it includes a resistor R39, a resistor R47, a resistor R34, a transistor Q4, a diode D10 and a load LED3, one end of the resistor R39 is connected to the networking control module, the other end of the resistor R39 is respectively connected to one end of the resistor R47 and the base of the transistor Q4, the other end of the resistor R47 is connected to the emitter of the transistor Q4, the collector of the transistor Q4 is respectively connected to one end of the resistor R34, the positive electrode of the diode D10 and the first end of the relay unit, the other end of the resistor R34 is connected to the load LED3, and the second end of the relay unit, the negative electrode of the diode D10 and the load LED3 are all connected to the power module.

[0028] The power module comprises an ACDC unit, a DCDC unit and an LDO unit, wherein the ACDC unit is connected to the DCDC unit and the LDO unit respectively, the DCDC unit is connected to a networking control module, and the LDO unit is connected to an electronic switch, a positioning module and a metering module respectively.

[0029] The LDO unit includes a first LDO circuit and a second LDO circuit, wherein the first LDO circuit is connected to the electronic switch, and the second LDO circuit is connected to the positioning module and the metering module respectively.

[0030] The ACDC unit uses a high-performance non-isolated AC / DC conversion chip with a built-in 650V high avalanche capability intelligent power MOSFET and a built-in high-voltage startup circuit. The chip can convert the external input 220V AC power into 18V DC power.

[0031] The DCDC unit is a high-voltage step-down switch controller with a built-in 60V withstand voltage MOS and supports input up to 48V. It can provide 3A continuous current and up to 5A instantaneous current to the load. This unit steps down the 18V output of the ACDC chip to 3.8V to power the 4GCat-1 module.

[0032] The first LDO circuit converts the 18V input into a 12V output to power the relay. The maximum output adjustable range is 1.25V-37V, the output current is greater than 1.5A, and it has functions such as internal short-circuit current limiting and thermal overload protection.

[0033] The second LDO circuit converts the 3.8V voltage into 3.3V to power the positioning module and the power metering chip. It has the characteristics of low static power consumption, and the minimum static current is 4uA.

[0034] The specific working principle of the utility model is:

[0035] First, connect the power cord to the controller's terminal P4 ( Figure 3 ), according to the terminal marking L connected to the live wire, N connected to the neutral wire, connect the load to the terminal P5, LOUT connected to the live wire of the load, NOUT connected to the neutral wire of the load ( Figure 7 ), confirm that the line sequence is correct and then power on. After powering on, the ACDC chip converts 220V to 18V ( Figure 3 ), converted to 18V and then enters a DCDC circuit and LDO circuit. The DCDC circuit converts 18V to 3.8V ( Figure 5 ), to power the 4G Cat-1 module ( Figure 1 ); LDO circuit converts 18V to 12V ( Figure 4 ) to power the relay. While the 3.8V is powering the 4G module, it also passes through an LDO to convert the 3.8V to 3.3V ( Figure 6 ), for the positioning module ( Figure 2 ) and metering modules ( Figure 8 )powered by.

[0036] After the 4G Cat-1 module is powered, it is connected to the cloud platform. After connecting to the cloud platform, LED1 flashes slowly and LED2 is always on. Figure 1 ), the serial number, status, location and other information of the current controller can be displayed on the cloud platform. If the controller is not connected to the load at this time, the power used by the load on the cloud platform is 0.

[0037] After the device is connected to the cloud platform, you can issue commands on the cloud platform. When the load needs to be turned on after it is connected, issue a light-on command on the platform, and the 4G Cat-1 module outputs a high level to the transistor connected to the relay ( Figure 7 ), the transistor is turned on after receiving a high level, the relay is energized and the load is energized; when the load is turned off, the platform sends a light-off command, the 4G Cat-1 module stops outputting a high level, that is, the normal state becomes a low level, the transistor is no longer cut off after receiving a high level, the relay is reset, and the load is also powered off at the same time.

[0038] The working principle of the electricity metering chip is that the 4G Cat-1 module sends a command to obtain power information. After receiving the command, the chip returns the power used by the load to the 4G Cat-1 module through the SPI interface (this command is a simple interactive command, which is a prior art and not a method innovation of the present utility model). After the 4G Cat-1 module obtains the power consumption information, the current power used by the load can be viewed on the platform. Since the current measurement on the circuit is the load-end current measurement, the current data on the platform will display 0 when no load is connected. Since the voltage detection on the circuit is connected to the controller voltage, the voltage detection on the platform is the mains voltage of the currently connected device.

[0039] The utility model improves the problem that the traditional controller can only control locally. Combined with the cloud platform of the Internet of Things, the user can issue instructions to control the device on the cloud platform. Combined with the clock information of the clock unit, the user can set the control strategy - control the device according to the set strategy time. The strategy control can turn on and off the device at the right time to avoid the waste of electricity caused by turning on the light early and the poor experience caused by turning on the light late. The utility model also adds a positioning function to the device. After the device is installed, the installation location can be obtained on the cloud platform. When the device has a problem, the location of the device can be understood, avoiding the inconvenience of finding records to obtain the location. At the same time, due to the positioning information, the user can clearly know which controller is being controlled when the control instruction is issued, which improves the accuracy of the control. It has an electricity metering function. After connecting the load, the current load can read the electric energy used on the cloud platform, allowing the user to intuitively understand the load The power used. Due to the use of the OPEN CPU solution, the MCU and its peripheral devices can be omitted in the circuit, which can reduce the cost of the circuit.

[0040] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. An IoT lighting controller with positioning function and power detection, characterized in that: include: A networking control module and an electronic switch connected to the networking control module, wherein the networking control module closes the electronic switch by outputting a high level, one end of the electronic switch is connected to a power module, and the other end of the electronic switch is connected to a load, the networking control module is connected to a positioning module, and the positioning module provides positioning information, and the networking control module is also connected to a metering module, and the metering module is used to detect voltage information and current information.

2. The IoT lighting controller with positioning function and power detection according to claim 1 is characterized in that: The networking control module is a 4G Cat-1 module.

3. The IoT lighting controller with positioning function and power detection according to claim 1 is characterized in that: The electronic switch is a normally open relay.

4. The IoT lighting controller with positioning function and power detection according to claim 1, 2 or 3, characterized in that: The power supply module comprises an ACDC unit, a DCDC unit and an LDO unit, wherein the ACDC unit is connected to the DCDC unit and the LDO unit respectively, the DCDC unit is connected to a networking control module, and the LDO unit is connected to an electronic switch, a positioning module and a metering module respectively.

5. The IoT lighting controller with positioning function and power detection according to claim 1, characterized in that: The networking control module is provided with a clock unit.

6. The IoT lighting controller with positioning function and power detection according to claim 3 is characterized in that: The normally open relay comprises a transistor and a relay unit, the control end of the transistor is connected to the networking control module, and the transistor is connected to the relay unit.

7. The IoT lighting controller with positioning function and power detection according to claim 4, characterized in that: The LDO unit includes a first LDO circuit and a second LDO circuit, wherein the first LDO circuit is connected to the electronic switch, and the second LDO circuit is connected to the positioning module and the metering module respectively.

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