CN217333135U - Intelligent control system for illumination - Google Patents
Intelligent control system for illumination Download PDFInfo
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- CN217333135U CN217333135U CN202220852395.8U CN202220852395U CN217333135U CN 217333135 U CN217333135 U CN 217333135U CN 202220852395 U CN202220852395 U CN 202220852395U CN 217333135 U CN217333135 U CN 217333135U
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- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses an intelligent control system for illumination, which comprises a main control MCU, an external watchdog module and a power supply module, wherein a watchdog circuit is arranged inside the main control MCU, a corresponding watchdog port is arranged on the main control MCU, and the input end of the external watchdog module is electrically connected with the watchdog port of the main control MCU; the power supply module comprises an enabling end, the enabling end of the power supply module is electrically connected with the output end of the external watchdog module, and the output end of the power supply module is electrically connected with the main control MCU; this control system adopts inside and outside two parts watchdog protection circuit, increases outside watchdog module when keeping the inside watchdog circuit of master control MCU, and when master control MCU was unusual, the level upset of outside watchdog module 100's output made power module close the output, and master control MCU falls power failure and resets, improves control system's reliability.
Description
Technical Field
The utility model relates to the field of lighting, especially an intelligent control system of illumination.
Background
The traditional illumination control terminal only uses an internal Watchdog (WDT) inside a chip, and the watchdog is used for preventing that a single chip microcomputer cannot normally execute a program and cannot clear a watchdog counter at regular time in case of abnormity of program error, program runaway, program dead cycle and the like of the single chip microcomputer, so that the watchdog counter overflows to cause watchdog interruption and reset a system; however, if the internal watchdog timer is interfered and crashed or the program is abnormal, the system cannot be reset, and the fault cannot be recovered.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an intelligent control system of illumination with higher reliability.
According to the utility model discloses intelligence control system of illumination, include: the main control MCU is internally provided with a watchdog circuit and is provided with a corresponding watchdog port; the input end of the external watchdog module is electrically connected with a watchdog port of the master control MCU; the power module comprises an enabling end, the enabling end of the power module is electrically connected with the output end of the external watchdog module, the output end of the power module is electrically connected with the main control MCU, when the main control MCU is abnormal, the level output by the output end of the external watchdog module is turned over to enable the power module to close and output, and the main control MCU is reset in a power-down mode.
According to the utility model discloses intelligence control system of illumination has following beneficial effect at least: this control system adopts inside and outside two parts watchdog protection circuit, increases outside watchdog module when keeping the inside watchdog circuit of master control MCU, and when master control MCU was unusual, the level of the output of outside watchdog module overturns, makes power module close the output, and master control MCU falls electric reset, improves control system's reliability.
According to some embodiments of the present invention, the external watchdog module includes a timer chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a triode Q1 and a triode Q2, wherein the DIS end of a timer chip U1 is electrically connected with one end of a resistor R1 and one end of a resistor R2 respectively, the other end of the resistor R1 is electrically connected with the VCC port of the timer chip U1, the other end of the resistor R2 is electrically connected with the THR end of the timer chip U1 and one end of a capacitor C1 respectively, the other end of the capacitor C1 is grounded with the GND end of the timer chip U1, the TRIG end of the timer chip U1 is electrically connected with the collector of the triode Q1 through a series resistor R3, the emitter of the triode Q1 is grounded, the base of the triode Q1 is electrically connected with the collector of a triode Q2 through a series resistor R4, the emitter of the triode Q2 is grounded, and the base of the triode Q2 is electrically connected with the gate port of the master control MCU; when the master control MCU normally works, the circuit discharges a capacitor C1 through a triode Q1 and a triode Q2, when the master control MCU works abnormally, the capacitor C1 is charged to be higher than a certain voltage through a resistor R1 and a resistor R2, the level output by the output end of a timer chip U1 is inverted, the power supply module is closed to output, and the master control MCU is forcibly reset when power fails; when the capacitor C1 discharges through the resistor R2 and is lower than a certain voltage, the capacitor C1 is recharged, the level output by the timer chip U1 is turned over, the power module 200 is started to output, and the main control MCU recovers power supply and works again.
According to some embodiments of the utility model, power module includes 12V rectifier unit and 3.3V step-down unit, the input and the external power supply electricity of 12V rectifier unit are connected, 12V rectifier unit's output 12V direct current voltage and with 3.3V step-down unit's input electricity is connected, 3.3V step-down unit is including the enable end, 3.3V step-down unit's enable end with the output electricity of outside watchdog module is connected, 3.3V step-down unit's output 3.3V direct current voltage and with the master control MCU electricity is connected, simple structure, easy to carry out, need not independent power supply.
According to the utility model discloses a some embodiments, power module includes 3.7V step-down unit, 12V rectifier unit's output with 3.7V step-down unit's input electricity is connected, 3.7V step-down unit output 3.7V direct current voltage for the back stage circuit power supply, need not independent power supply, simple structure, easy implementation.
According to the utility model discloses a some embodiments, including the 4G module, 3.7V step-down unit includes step-down chip U22, and step-down chip U22's enable end is connected with main control MCU electricity, and step-down chip U22's output is connected with the 4G module electricity, the wireless connection of the external equipment of being convenient for.
According to some embodiments of the utility model, including wired module, wired module with the master control MCU electricity is connected, is convenient for with external device's wired connection.
According to the utility model discloses a some embodiments, including RS485 communication module, RS485 communication module include respectively with first communication unit and second communication unit that the master control MCU electricity is connected, first communication unit is connected with outside computer electricity, and accessible outside computer debugs this control system, second communication unit output multichannel light control signal is in order to control outside lamp source, and this RS485 communication module adopts two tunnel automatic transceiver circuits of first communication unit and second communication unit, and it is simple to use automatic transceiver circuit control, and the transceiver control foot does not need the program to intervene, only needs two IO ports of master control MCU, simple structure, easy to carry out.
According to some embodiments of the present invention, the relay module comprises an encoder chip U41, an encoder chip U42, and a relay K1, a relay K2, a relay K3, a relay K4, a relay K5, a relay K6, a relay K7, and a relay K8 electrically connected to an output terminal of the encoder chip U41 and an output terminal of the encoder chip U42, three IO terminals of the encoder chip U41 and three IO terminals of the encoder chip U42 are electrically connected to a first IO terminal, a second IO terminal, and a third IO terminal of the main control MCU in a one-to-one correspondence manner, an enable terminal of the encoder chip U41 is electrically connected to a fourth IO terminal of the main control MCU, an enable terminal of the encoder chip U42 is electrically connected to a fifth IO terminal of the main control MCU, and control of eight relays can be achieved by only occupying five IO terminals of the main control MCU, the structure is simple, the implementation is easy.
According to the utility model discloses a some embodiments, including the clock module, the clock module with the master control MCU electricity is connected, guarantees the accuracy and the stability of control system operation.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The following description will further describe the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is an overall circuit block diagram of an embodiment of the present invention;
fig. 2 is a circuit diagram of an external watchdog module according to an embodiment of the present invention;
fig. 3 is a circuit configuration diagram of a power module according to an embodiment of the present invention;
fig. 4 is a circuit structure diagram of an RS485 communication module according to an embodiment of the present invention;
fig. 5 is a circuit configuration diagram of a relay module according to an embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Referring to fig. 1, the utility model discloses an intelligent control system of illumination, include: the power supply comprises a main control MCU, an external watchdog module 100 and a power supply module 200, wherein in some embodiments, the main control MCU adopts an STM32 chip, a watchdog circuit is arranged inside the main control MCU, a corresponding watchdog port is arranged on the main control MCU, and the input end of the external watchdog module 100 is electrically connected with the watchdog port of the main control MCU; the power module 200 comprises an enable end, the enable end of the power module 200 is electrically connected with the output end of the external watchdog module 100, and the output end of the power module 200 is electrically connected with the main control MCU; this control system adopts inside and outside two parts watchdog protection circuit, increases outside watchdog module 100 when keeping the inside watchdog circuit of master control MCU, and when master control MCU was unusual, the level of outside watchdog module 100's output overturns, makes power module 200 close the output, and master control MCU falls power failure and resets, improves control system's reliability.
As shown in fig. 2, in some embodiments, the external watchdog module 100 includes a timer chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a triode Q1 and a triode Q2, wherein the timer chip U1 can adopt a 555 single chip microcomputer, the DIS end of the timer chip U1 is respectively and electrically connected with one end of a resistor R1 and one end of a resistor R2, the other end of the resistor R1 is electrically connected with a VCC port of the timer chip U1, the other end of the resistor R2 is respectively and electrically connected with the THR end of the timer chip U1 and one end of a capacitor C1, the other end of the capacitor C1 is grounded with the GND end of the timer chip U1, the TRIG end of the timer chip U1 is electrically connected with the collector of the triode Q1 through a series resistor R3, the emitter 1 of the triode Q1 is grounded, the base of the triode Q1 is electrically connected with the collector of the triode Q2 through a series resistor R4, the emitter of the triode Q2 is grounded, and the base of the triode Q2 is electrically connected with the watchdog port of the main control MCU; when the master control MCU normally works, the circuit discharges a capacitor C1 through a triode Q1 and a triode Q2, when the master control MCU works abnormally, the capacitor C1 is charged to be higher than a certain voltage through a resistor R1 and a resistor R2, the level output by the output end of a timer chip U1 is inverted, the power module 200 is closed to output, and the master control MCU is forced to reset when power fails; when the capacitor C1 discharges through the resistor R2 and is lower than a certain voltage, the capacitor C1 is recharged, the level output by the timer chip U1 is turned over, the power module 200 is started to output, and the main control MCU recovers power supply and works again.
As shown in fig. 3, in some embodiments, the power module 200 includes a 12V rectifying unit 210 and a 3.3V voltage-reducing unit 220, an input terminal of the 12V rectifying unit 210 is electrically connected to an external power source, an output terminal of the 12V rectifying unit 210 outputs a 12V dc voltage and is electrically connected to an input terminal of the 3.3V voltage-reducing unit 220, the 3.3V voltage-reducing unit 220 includes an enable terminal, an enable terminal of the 3.3V voltage-reducing unit 220 is electrically connected to an output terminal of the external watchdog module 100, and an output terminal of the 3.3V voltage-reducing unit outputs a 3.3V dc voltage and is electrically connected to the main control MCU, so that the power module is simple in structure and easy to implement, and does not need a separate power source for supplying power; in some embodiments, the 12V rectifying unit 210 includes a rectifying bridge, and the 3.3V buck unit 220 employs a buck chip MP 2359.
In some embodiments, the power module 200 includes a 3.7V buck unit 230, an output terminal of the 12V rectifying unit 210 is electrically connected to an input terminal of the 3.7V buck unit 230, and the 3.7V buck unit outputs a 3.7V dc voltage to supply power to a subsequent circuit, which does not need an independent power supply, and has a simple structure and is easy to implement.
In some embodiments, the 3.7V buck unit 230 includes a buck chip U22, an enable terminal of the buck chip U22 is electrically connected to the main control MCU, and an output terminal of the buck chip U22 is electrically connected to the 4G module, so as to facilitate wireless connection of an external device; in some embodiments, the buck chip U22 is an MP1584 chip.
In some embodiments, a wired module is included, and the wired module is electrically connected with the master MCU to facilitate wired connection with an external device.
As shown in fig. 4, in some embodiments, the RS485 communication module 300 is included, the RS485 communication module 300 includes a first communication unit 310 and a second communication unit 320 respectively electrically connected to the main control MCU, the first communication unit 310 is electrically connected to an external computer, the control system can be debugged by the external computer, the second communication unit 320 outputs multiple light control signals to control the external light source, the RS485 communication module 300 employs two paths of automatic transceiver circuits of the first communication unit 310 and the second communication unit 320, the automatic transceiver circuits are simple to control, the transceiver control pins do not need program intervention, only two IO ports of the main control MCU are needed, the structure is simple, and the implementation is easy.
In some embodiments, the first communication unit 310 includes a transistor Q31, a chip U31, a TVS tube D31, a fuse PTC1 and a fuse PTC2, the chip U31 may adopt an SN65HVD chip, a DE terminal of the SN65HVD chip is electrically connected to a collector of the transistor Q31, a base of the transistor Q31 is electrically connected to a TXD1 terminal of the main control MCU, an R terminal of the SN65HVD chip is electrically connected to an RXD1 terminal of the main control MCU, A, B terminals of the SN65HVD chip are respectively electrically connected to the TVS tube D31, an a terminal of the SN65HVD chip is serially connected to the fuse PTC1, and a B terminal of the SN65HVD chip is serially connected to the fuse PTC2, so that a communication bus port thereof is protected from a surge current. In some embodiments, the second communication unit 320 includes a transistor Q32, a chip U32, a TVS tube D32, a fuse PTC3 and a fuse PTC4, the chip U32 may adopt an SN65HVD chip, a DE terminal of the SN65HVD chip is electrically connected to a collector of the transistor Q32, a base of the transistor Q32 is electrically connected to a TXD2 terminal of the main control MCU, an R terminal of the SN65HVD chip is electrically connected to an RXD2 terminal of the main control MCU, A, B terminals of the SN65HVD chip are respectively electrically connected to the TVS tube D32, an a terminal of the SN65HVD chip is serially connected to the fuse PTC3, and a B terminal of the SN65HVD chip is serially connected to the fuse PTC4, so that a communication bus port thereof is not affected by a surge current.
As shown in fig. 5, in some embodiments, including the relay module 400, the relay module 400 includes an encoder chip U41, an encoder chip U42, and a relay K1, a relay K2, a relay K3, a relay K4 electrically connected to an output terminal of the encoder chip U41 and an output terminal of the encoder chip U42, respectively, relay K5, relay K6, relay K7 and relay K8, encoder chip U41's three IO terminal and encoder chip U42's three IO terminal respectively with main control MCU's first IO terminal, second IO terminal and third IO terminal one-to-one are connected, encoder chip U41's enable end is connected with main control MCU's fourth IO terminal electricity, encoder chip U42's enable end is connected with main control MCU's fifth IO terminal electricity, only need occupy main control MCU's five IO terminals and can realize the control to eight relays, moreover, the steam generator is simple in structure, and easy implementation.
In some embodiments, the system comprises a clock module, wherein the clock module is electrically connected with the master control MCU, so that the accuracy and stability of the operation of the control system are ensured.
The external watchdog module 100, the power module 200, the 4G module, the wired module and the RS485 module 300 are respectively and independently connected with the master control MCU, and can be respectively and independently powered off and reset, so that the local hardware is executed to forcibly power off and reset on the premise of not influencing the normal work of other modules, and the stable operation of the terminal is guaranteed.
It is readily understood by those skilled in the art that the above-described preferred modes can be freely combined and superimposed without conflict.
The above is only the preferred embodiment of the present invention, not limiting the patent scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct or indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (9)
1. An intelligent control system for lighting, comprising:
the main control MCU is internally provided with a watchdog circuit and is provided with a corresponding watchdog port;
the input end of the external watchdog module (100) is electrically connected with a watchdog port of the main control MCU;
power module (200), including the enable end, the enable end of power module (200) with the output electricity of outside watchdog module (100) is connected, the output of power module (200) with master control MCU electricity is connected, works as when master control MCU is unusual, the level upset of the output of outside watchdog module (100) makes power module (200) closes the output, master control MCU power failure reset.
2. The intelligent control system of lighting according to claim 1, wherein: the external watchdog module (100) comprises a timer chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a triode Q1 and a triode Q2, the DIS end of the timer chip U1 is electrically connected with one end of a resistor R1 and one end of a resistor R2 respectively, the other end of the resistor R1 is connected with the VCC end and the R end of the timer chip U1, the other end of the resistor R2 is electrically connected with the THR end of the timer chip U1 and one end of a capacitor C1 respectively, the other end of the capacitor C1 and the GND end of the timer chip U1 are grounded, the TRIG end of the timer chip U1 is electrically connected with the collector of a triode Q1 through a series resistor R3, the emitter of a triode Q1 is grounded, the base of the triode Q1 is electrically connected with the collector of a triode Q2 through a series resistor R4, the emitter of the triode Q2 is grounded, and the base of the triode Q2 is electrically connected with the watchdog port of the master control MCU.
3. The intelligent control system of lighting according to claim 2, wherein: power module (200) includes 12V rectifier cell (210) and 3.3V step-down unit (220), the input and the external power electricity of 12V rectifier cell (210) are connected, the output 12V DC voltage of 12V rectifier cell (210) and with the input electricity of 3.3V step-down unit (220) are connected, 3.3V step-down unit (220) are including enabling the end, the enable end of 3.3V step-down unit (220) with the output electricity of outside watchdog module (100) is connected, the output 3.3V DC voltage of 3.3V step-down unit (220) and with main control MCU electricity is connected.
4. The intelligent control system of lighting according to claim 3, wherein: the power module (200) comprises a 3.7V voltage reduction unit (230), the output end of the 12V rectification unit (210) is electrically connected with the input end of the 3.7V voltage reduction unit (230), and the 3.7V voltage reduction unit (230) outputs 3.7V direct-current voltage.
5. The intelligent control system of lighting according to claim 4, wherein: the 3.7V voltage reduction unit (230) comprises a voltage reduction chip U22, an enabling end of the voltage reduction chip U22 is electrically connected with the master control MCU, and an output end of the voltage reduction chip U22 is electrically connected with the 4G module.
6. The intelligent control system of lighting according to claim 1, wherein: the intelligent control system comprises a wired module, wherein the wired module is electrically connected with the main control MCU.
7. The intelligent control system of lighting according to claim 1, wherein: including RS485 communication module (300), RS485 communication module (300) including respectively with first communication unit and the second communication unit that the master control MCU electricity is connected, first communication unit is connected with outside computer electricity, second communication unit output multichannel light control signal is in order to control outside lamp source.
8. The intelligent control system of lighting according to claim 1, wherein: including relay module (400), relay module (400) include encoder chip U41, encoder chip U42 and relay K1 with encoder chip U41's output and encoder chip U42's output electricity connection respectively, relay K2, relay K3, relay K4, relay K5, relay K6, relay K7 and relay K8, encoder chip U41's three IO terminal and encoder chip U42's three IO terminal respectively with master control MCU's first IO terminal, second IO terminal and third IO terminal one-to-one are connected, encoder chip U41's enable end with master control MCU's fourth IO terminal electricity is connected, encoder chip U42's enable end with master control MCU's fifth IO terminal electricity is connected.
9. The intelligent control system of lighting according to claim 1, wherein: the intelligent control system comprises a clock module, wherein the clock module is electrically connected with the master control MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220852395.8U CN217333135U (en) | 2022-04-13 | 2022-04-13 | Intelligent control system for illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220852395.8U CN217333135U (en) | 2022-04-13 | 2022-04-13 | Intelligent control system for illumination |
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| Publication Number | Publication Date |
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| CN217333135U true CN217333135U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220852395.8U Active CN217333135U (en) | 2022-04-13 | 2022-04-13 | Intelligent control system for illumination |
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| CN (1) | CN217333135U (en) |
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- 2022-04-13 CN CN202220852395.8U patent/CN217333135U/en active Active
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